Shear capacity of slabs and slab strips loaded close to the support

•Download as PPT, PDF•

0 likes•697 views

The document summarizes research on the shear capacity of concrete slabs and strips loaded close to supports. Three key findings are: 1) The shear span to depth ratio has a smaller influence on shear capacity in slabs compared to beams due to three-dimensional load spreading in slabs. 2) Increasing the size of the loading plate increases shear capacity more for wider slabs, as it allows for larger surface area to develop three-dimensional stress distributions. 3) Existing code design methods do not fully capture the different shear behavior in slabs compared to beams. The research recommends modifying factors for concentrated loads near supports in codes for evaluating existing solid slab bridges.

Technology

Shear Capacity of Slabs and Slab Strips Loaded Close to the Support Eva Lantsoght

Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S9T6 at failure

Introduction Project description (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Highways in the Netherlands

Introduction Project description (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Concrete bridges

Experiments Test setup Size: 5m x 2,5m x 0,3m Continuous support, Line supports Load: vary a/d and position along width

Shear span to depth ratio Introduction (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],Valley of shear failure (Kani 1964)

Shear span to depth ratio Introduction (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],EN 1992-1-1:2005 Figure 6.4

Shear span to depth ratio Introduction (3) ,[object Object],[object Object],[object Object],[object Object]

Shear span to depth ratio Introduction (4) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Shear span to depth ratio Results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],26% 2.5 S3/S4 – S5/S6 23% 2.0 BX2 – BX3 41% 1.5 BL2 – BL3 64% 1.0 BM2 – BM3 98% 0.5 BS2 – BS3 Average increase b (m) Specimens

Size of loading plate Introduction (1) AASHTO loading truck Tire contact area: 510mm x 250mm EN 1991-2 load model 1 400mm x 400mm

Size of loading plate Introduction (2) 45 ° load spreading 45 ° load spreading – French practice Influence size of loading plate on shear capacity?

Size of loading plate Previous research ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Size of loading plate Test results (1) ,[object Object],[object Object],[object Object],41.5% 2.5 S1 – S2 25.2% 2.0 BX1 – BX3 0.7% 1.5 BL1 – BL3 0.5% 1.0 BM1 – BM3 10.1% 0.5 BS1 – BS3 Average increase b (m) Specimens

Overall width and Effective width Previous research ,[object Object],[object Object],[object Object],[object Object],[object Object]

Overall width and Effective width Test results (1)

Overall width and Effective width Test results (2) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Overall width and Effective width Test results (3) Comparison cracking pattern BS2T1 and S9T1

Comparison to Code Methods Codes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Comparison to Code Methods Results (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],S4T2 Dominant shear crack

Comparison to Code Methods Results (3) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Comparison to Code Methods Recommendation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusions (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusions (2) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Contact: Eva Lantsoght [email_address] +31(0)152787449

The shear problem is typically studied by testing small, heavily reinforced, slender beams subjected to concentrated loads, resulting in a beam shear failure, or by testing slab-column connections, resulting in a punching shear failure. Slabs subjected to concentrated loads close to supports, as occurring when truck loads are placed on slab bridges, are much less studied. For this purpose, the Bond Model for concentric punching shear was studied at first. Then, modifications were made, resulting in the Modified Bond Model. The Modified Bond Model takes into account the enhanced capacity resulting from the direct strut that forms between the load and the support. Moreover, the Modified Bond Model is able to deal with moment changes between the support and the span, as occurs near continuous supports, and can take into account the reduction in capacity when the load is placed near to the edge. The resulting Modified Bond Model is compared to the results of experiments that were carried out at the Stevin laboratory. As compared to the Eurocodes (NEN-EN 1992-1-1:2005) and the ACI code (ACI 318-11), the Modified Bond Model leads to a better prediction.

Shear capacity of slabs and slab strips loaded close to the support

Eva Lantsoght

AS4100 Steel Design Webinar Worked Examples

ClearCalcs

Two-Way Floor SlabTyler Edgington

Ship design project Final presentation

Kifayath Chowdhury

Worked Examples for Timber Beam Design to AS1720.1 Webinar

ClearCalcs

Sachpazis: Two-way RC Slab Slab Analysis & Design (EN1992-1-1:2004) example

Dr.Costas Sachpazis

Shallow Foundations ( Combined, Strap, Raft foundation)

Mohammed Zakaria

Slabs subjected to concentrated loads close to supports, as occurring for truck loads on slab bridges, are less studied than beams in shear or slab-column connections in punching. To predict the shear capacity for this case, the Bond Model for concentric punching shear was studied initially. Modifications to this model resulted in the Modified Bond Model, which takes into account the enhanced capacity from the direct transfer of the load to the support, is able to deal with moment sign changes as occurring near continuous supports, and can take into account the reduction in capacity, resulting from the geometry when the load is placed close to the edge. The model is then compared to the results of experiments on slabs subjected to concentrated loads close to supports. As compared to the Eurocode and the ACI code, the Modified Bond Model leads to a significantly better prediction of the experimental results. The Modified Bond Model is one of the few models available to describe the shear capacity of slabs subjected to concentrated loads close to supports and can be used for design and assessment.

Final Presentation_25 MayKallol Barua

Structural Mechanics: Shear stress in Beams (1st-Year)Alessandro Palmeri

Lesson 06, shearing stresses

Msheer Bargaray

Worked example extract_flat_slabsLuan Truong Van

Design of Floating Bridge Cross Over

IRJET Journal

Statistical Data Analysis of Compressive Strength of Lightweight Concrete

Arpit Rawat

Slender columnn and two-way slabs

civilengineeringfreedownload

Lesson 06, shearing stresses (Updated)

Msheer Bargaray

11 viacurrents1 1

kaushalmangtani1

Shear force and bending moment diagram

Manthan Chavda

Swotjc.pichardo

CS Presents, Creative Looting - Tom Erslinger

theotherjameskirk

Architecture | Modular Enterprise Applications | Mark Nuttall

JAX London

2011-11-02 | 02:25 PM - 03:15 PM Enterprise applications are often long-lived, traditionally becoming more difficult and expensive to maintain over time. This talk will show how modular design and OSGi technology can help prevent this 'system rot' and enable more dynamic behaviour. We will outline the programming model and demonstrate running applications being maintained and extended on WebSphere Application Server version 8.

Spring Day | WaveMaker - Spring Roo - SpringSource Tool Suite: Choosing the R...

JAX London

2011-10-31 | 02:15 PM - 03:00 PM There are many tools out there to help developers working with the Spring framework and its manifold extensions. But it's not always easy to choose the right tool for the job. This talk guides you through the tooling landscape for Spring and illustrates when to use Spring Roo, WaveMaker or the SpringSource Tool Suite. Demos and examples give the audience first-hand insights and useful hints how to use and combine those tools effectively.

Java Core | JavaFX 2.0: Great User Interfaces in Java | Simon Ritter

JAX London

2011-11-02 | 01:30 PM - 02:15 PM | Victoria With the recent release of Java SE 7 the Java platform is back on the move, addressing the needs of developers as platforms and applications change. This session will briefly recap recent developments in Java SE 7 and the Java Community Process before moving onto the current ideas for features in Java SE 8. Discussions are underway within Oracle about the main themes for Java SE 9 and beyond. We'll conclude with an open discussion around what features the audience would like to see included in future releases of the Java platform. Key points from this will be passed back to Java SE product management in Oracle.

Java Tech & Tools | Grails in the Java Enterprise | Peter Ledbrook

JAX London

2011-11-01 | 03:00 PM - 03:50 PM With all the buzz around rapid web application development frameworks, are enterprise developers left looking on enviously? Not at all. Grails brings the same benefits to Java developers while providing many options for enterprise integration. This talk shows you how to build Grails projects with Ant and Maven; what's involved in talking to legacy databases; and how to talk to Java components.

What's hot

Isolated FootingSagnik Bhattacharjee

Testing to failure of the Ruytenschildt Bridge

Eva Lantsoght

Ship design project & presentation 3

Kifayath Chowdhury

Slip Line Field Method - Presentation

Santosh Verma

Capacity ruytenschildtbrug

Eva Lantsoght

MODIFIED BOND MODEL FOR SHEAR IN SLABS UNDER CONCENTRATED LOADS

Eva Lantsoght

Final Presentation_25 MayKallol Barua

Structural Mechanics: Shear stress in Beams (1st-Year)Alessandro Palmeri

Lesson 06, shearing stresses

Msheer Bargaray

Worked example extract_flat_slabsLuan Truong Van

Design of Floating Bridge Cross Over

IRJET Journal

Statistical Data Analysis of Compressive Strength of Lightweight Concrete

Arpit Rawat

Slender columnn and two-way slabs

civilengineeringfreedownload

Lesson 06, shearing stresses (Updated)

Msheer Bargaray

11 viacurrents1 1

kaushalmangtani1

Shear force and bending moment diagram

Manthan Chavda

What's hot (16)

Isolated Footing

Testing to failure of the Ruytenschildt Bridge

Ship design project & presentation 3

Slip Line Field Method - Presentation

Capacity ruytenschildtbrug

MODIFIED BOND MODEL FOR SHEAR IN SLABS UNDER CONCENTRATED LOADS

Final Presentation_25 May

Structural Mechanics: Shear stress in Beams (1st-Year)

Lesson 06, shearing stresses

Worked example extract_flat_slabs

Design of Floating Bridge Cross Over

Statistical Data Analysis of Compressive Strength of Lightweight Concrete

Slender columnn and two-way slabs

Lesson 06, shearing stresses (Updated)

11 viacurrents1 1

Shear force and bending moment diagram

Viewers also liked

Swotjc.pichardo

CS Presents, Creative Looting - Tom Erslinger

theotherjameskirk

Architecture | Modular Enterprise Applications | Mark Nuttall

JAX London

Spring Day | WaveMaker - Spring Roo - SpringSource Tool Suite: Choosing the R...

JAX London

Java Core | JavaFX 2.0: Great User Interfaces in Java | Simon Ritter

JAX London

Java Tech & Tools | Grails in the Java Enterprise | Peter Ledbrook

JAX London

Big Data & Cloud | Cloud Storage Simplified | Adrian Cole

JAX London

2011-11-01 | 04:20 PM - 05:10 PM Key/value stores are the most common storage offerings in the cloud today. We'll introduce storage concepts and differences between cloud storage providers including Amazon S3, Rackspace Cloud Files & Microsoft Azure Blob Service. We'll demonstrate how jclouds BlobStore helps Java and Clojure developers avoid lock-in and increase testability without restricting access to provider-specific features

Spring Day | Behind the Scenes at Spring Batch | Dave Syer

JAX London

2011-10-31 | 01:30 PM - 02:15 PM Spring Batch has a large user base and a good track record in production systems, but what is it all really about, and why does it work? This presentation provides a short bootstrap to get a new user started with the Batch domain, showing the key concepts and explaining the benefits of the framework. Then it goes into a deeper dive and looks at what holds it all together, with a close look at some of the most important but least understood features, including restart, retry and transactions.

Architecture | Busy Java Developers Guide to NoSQL | Ted Neward

JAX London

2011-11-02 | 03:45 PM - 04:35 PM | The NoSQL movement has stormed onto the development scene, and it’s left a few developers scratching their heads, trying to figure out when to use a NoSQL database instead of a regular database, much less which NoSQL database to use. In this session, we’ll examine the NoSQL ecosystem, look at the major players, how the compare and contrast, and what sort of architectural implications they have for software systems in general.

Java Core | Java 8 and OSGi Modularisation | Tim Ellison & Neil Bartlett

JAX London

The talk will cover a bit of background first to set things up: what is a module, why do we need a module system, summary of Java's existing support for modularity. Then it will move on to give a comparison of OSGi's and Jigsaw's dependency models. Pros and cons of each model in different environments will be discussed. Finally, opportunities and challenges for interoperability: from the perspective of both application developers (who may need to integrate modules from both kinds) and from library module developers (who may need to target both module systems)

Java Tech & Tools | Just Keep Passing the Message | Russel Winder

JAX London

2011-11-01 | 04:20 PM - 05:10 PM With the increasing ubiquity of multicore and hence parallel systems people are needing better ways of structuring applications than using shared-memory multi-threading. In this session we will look at actors, agents and active objects -- and their implementation in GPars. GPars is a Groovy/Java framework for managing concurrency and parallelism. It leverages all the JSR166 APIs

Spring Day | Data Access 2.0? Please Welcome Spring Data! | Oliver GierkeJAX London

Keynote | Middleware Everywhere - Ready for Mobile and Cloud | Dr. Mark Little

JAX London

2011-11-01 | 09:45 AM-10:30 AM The traditional role of middleware in the data center has been challenged to expand and meet the ubiquitous computing demands becoming more prevalent. The way applications are built, deployed, integrated and managed must accommodate the rapidly evolving mobile and cloud paradigms, without sacrificing security or performance. Open Standards, and a more agile stewardship of the Java Community Process will enable developers, architects and IT executives increase return on their existing IT investment and spur innovation in next generation application environments. Please join Dr. Mark Little, Sr. Director Middleware Engineering, as he discusses Red Hat's vision for how JBoss Enterprise Middleware will drive social, mobile and cloud computing.

Java Tech & Tools | Beyond the Data Grid: Coherence, Normalisation, Joins and...

JAX London

2011-11-02 | 02:25 PM - 03:15 PM In 2009 RBS set out to build a single store of trade and risk data that all applications in the bank could access simultaniously. This talk discusses a number of novel techniques that were developed as part of this work. Based on Oracle Coherence the ODC departs from the trend set by most caching solutions by holding its data in a normalised form making it both memory efficient and easy to change. However it does this in a novel way that supports most arbitrary queries without the usual problems associated with distributed joins. We'll be discussing these patterns as well as others that allow linear scalability, fault tolerance and millisecond latencies.

Java Tech & Tools | Big Blobs: Moving Big Data In and Out of the Cloud | Adri...JAX London

Android | Busy Java Developers Guide to Android: Persistence | Ted Neward

JAX London

2011-11-02 | 10:00 AM - 11:00 AM The Android ecosystem offers a few different ways to store things across restarts, but because Android also runs Java, a few more options also make themselves available, which means the Android developer has a pretty wide assortment of choices available to her. In this session, we’ll talk about those available choices, the pros and cons of each, and how to and when to use them. (Note: this session assumes you have some familiarity with the Android environment.)

Android | Busy Java Developers Guide to Android: UI | Ted NewardJAX London

Spring Day | Identity Management with Spring Security | Dave Syer

JAX London

2011-10-31 | 11:00 AM - 11:45 AM Application and platform security requirements are changing under the influence of standards like OpenID and OAuth2, and the increasing demand for lightweight and multi-language platforms. Everyone used to be happy if they could implement single sign on for their Java web applications. That's still important, but there is a growing demand for more extensive Identity Management services, both in the enterprise and for public web applications. CloudFoundry is a nice use case for this new service model: it has multi-language support and security requirements that go beyond simple single sign on. What does that mean, and what does it mean for Spring Security? Come to this presentation to find out.

Social Media, Metrics, Benchmark: Release 0.4 - My.ComMetrics.com

CyTRAP Labs (DE)

Online Marketing at the RSC - presentation for Association of British Orchestrasamyclarke_uk

Viewers also liked (20)

Swot

CS Presents, Creative Looting - Tom Erslinger

Architecture | Modular Enterprise Applications | Mark Nuttall

Spring Day | WaveMaker - Spring Roo - SpringSource Tool Suite: Choosing the R...

Java Core | JavaFX 2.0: Great User Interfaces in Java | Simon Ritter

Java Tech & Tools | Grails in the Java Enterprise | Peter Ledbrook

Big Data & Cloud | Cloud Storage Simplified | Adrian Cole

Spring Day | Behind the Scenes at Spring Batch | Dave Syer

Architecture | Busy Java Developers Guide to NoSQL | Ted Neward

Java Core | Java 8 and OSGi Modularisation | Tim Ellison & Neil Bartlett

Java Tech & Tools | Just Keep Passing the Message | Russel Winder

Spring Day | Data Access 2.0? Please Welcome Spring Data! | Oliver Gierke

Keynote | Middleware Everywhere - Ready for Mobile and Cloud | Dr. Mark Little

Java Tech & Tools | Beyond the Data Grid: Coherence, Normalisation, Joins and...

Java Tech & Tools | Big Blobs: Moving Big Data In and Out of the Cloud | Adri...

Android | Busy Java Developers Guide to Android: Persistence | Ted Neward

Android | Busy Java Developers Guide to Android: UI | Ted Neward

Spring Day | Identity Management with Spring Security | Dave Syer

Social Media, Metrics, Benchmark: Release 0.4 - My.ComMetrics.com

Online Marketing at the RSC - presentation for Association of British Orchestras

Similar to Shear capacity of slabs and slab strips loaded close to the support

Effective Width in Shear of Reinforced Concrete Solid Slab Bridges under Whee...

Eva Lantsoght

For the assessment of reinforced concrete slab bridges in the Netherlands, the shear stress resulting from the dead loads and live loads is determined in a spreadsheet or from a finite element model. In a spreadsheet-based approach, an assumption for the distribution of the loads from the wheel prints is necessary. When finite element methods are used, it is necessary to determine over which length (a multiple of the effective depth) the peak shear stress can be distributed for comparison to the design shear capacity. To recommend a load-spreading method, experiments were executed on slab strips of increasing widths. The shear capacity did not increase with the increasing width upon passing a threshold. This threshold is compared to different load spreading methods, indicating that a distribution from the far side of the wheel print is to be preferred. This recommendation is also supported by the results of a statistical analysis and the stress distribution in nonlinear finite element models. To find the distribution width in a finite element method, a numerical model is compared to an experiment on a slab subjected to a concentrated load in which the support consists of a line of 7 bearings equipped with load cells measuring the reaction forces. These measurements were compared to the stress profile at the support from the model, showing that the peak can be distributed over 4 times the effective depth. These recommendations for the effective width and distribution width are research-based tools that replace the previously used rules of thumb resulting from engineering judgement.

Experimental study of shear in reinforced concrete one way slabs subjected to...

Eva Lantsoght

Flat slab

Dr Monirul Islam

Evaluation of Design Provisions for One-Way Solid Slabs in SBC-304

IRJET Journal

IRJET - Experimental Investigation of flexural member of Beam Opening in ...

IRJET Journal

Final Seminar Phd 4-3-2014 (المناقشة).ppt

mohamed khaled

Heavy Duty Pavement Design

guestdbd9fccc

Heavy duty pavements are pavements subjected to the extremely heavy wheel loads associated with freight handling vehicles in industrial facilities, such as container terminals and warehouses. Heavy duty pavement need to handle many types of freight handling vehicles, such as forklifts, straddle carriers, gantry cranes and side loaders. Heavy duty pavement often deals with slow moving or even static traffic load with ultra high load magnitude. Furthermore, the load wandering for heavy duty pavement such as contain port or warehouse is more significant than normal highway or urban road pavement. The goal of pavement design is to determine the number, material composition and thickness of the different layers within a pavement structure required to accommodate a given loading regime.

Heavy Duty Pavement Design

Dr Wei Liu

Comparative Study of Ferrocement Panels Under Blast Loading by Finite Element...

IRJET Journal

Paper " STRUT-AND-TIE MODEL AND 3-D NONLINEAR FINITE ELEMENT ANALYSIS FOR THE...Waleed E. El-Demerdash

253283568 stm

Ramil Artates

Determination of load transfer in reinforced concrete solid slabs by finite e...

IOSR Journals

According to the ACI building code, the concrete slab can be divided into two types depending on the ratio of the long side to the short side. Regarding the results of the ratio, the concrete slab can be divided as one-way and two-way slabs. The main objective of this paper is to study the stress or moments distribution in solid slab panel in its two directions and compare with ACI code assumption that the load is transferred mainly in short direction and most of the load is transferred in one direction only if the ratio of the longer span to the shorter span is greater than one. This will be discussed by analyzing one panel of solid slab using the computer software SAP2000. Two types of panels will be used; the first one a panel that is supported simply on its four sides and the second panel is supported only by four pin supports and beams. This paper shows that the gravity load on the slab is transferred to long and short direction. This means that one-way concrete solid slab doesn't exist and all concrete solid slabs work as a two-way concrete slab.

Finite Element Analysis of Precast, Prestressed Hollow core slab to evaluate ...

Tirthak Shah

Print versionFakhruddin Muchtar

ME_Thesis_1.pptx

VijayKamble86

A CFD study of Wind Tunnel Wall Interference_Md HasanMd Rakibul Hasan

Profiled Deck Composite Slab Strength Verification: A Review

Oyeniyi Samuel

Modeling of Deep Girders Supporting Shear WallsSyed Karar Hussain

IRJET- Non-Linear Numerical Analysis of Pre-Cast Reinforced Concrete Dapped E...

IRJET Journal

W04408116121

IJERA Editor

International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.

Similar to Shear capacity of slabs and slab strips loaded close to the support (20)

Effective Width in Shear of Reinforced Concrete Solid Slab Bridges under Whee...

Experimental study of shear in reinforced concrete one way slabs subjected to...

Flat slab

Evaluation of Design Provisions for One-Way Solid Slabs in SBC-304

IRJET - Experimental Investigation of flexural member of Beam Opening in ...

Final Seminar Phd 4-3-2014 (المناقشة).ppt

Heavy Duty Pavement Design

Comparative Study of Ferrocement Panels Under Blast Loading by Finite Element...

Paper " STRUT-AND-TIE MODEL AND 3-D NONLINEAR FINITE ELEMENT ANALYSIS FOR THE...

253283568 stm

Determination of load transfer in reinforced concrete solid slabs by finite e...

Finite Element Analysis of Precast, Prestressed Hollow core slab to evaluate ...

Print version

ME_Thesis_1.pptx

A CFD study of Wind Tunnel Wall Interference_Md Hasan

Profiled Deck Composite Slab Strength Verification: A Review

Modeling of Deep Girders Supporting Shear Walls

IRJET- Non-Linear Numerical Analysis of Pre-Cast Reinforced Concrete Dapped E...

W04408116121

More from Eva Lantsoght

Coneic presentation 2020

Eva Lantsoght

Pruebas de cortante en vigas postensadas

Eva Lantsoght

Pruebas de carga en puentes de hormigón armado

Eva Lantsoght

El futuro del hormigon

Eva Lantsoght

Shear testing of prestressed concrete girders

Eva Lantsoght

Load testing of structures

Eva Lantsoght

The road to breaking bridges and stereotypes

Eva Lantsoght

Load rating using load testing: introducing the new bridge load testing e-cir...

Eva Lantsoght

Como evaluar la capacidad de puentes de hormigón existentes?

Eva Lantsoght

Después de la expansión de la red vial del país, la comunidad de ingenieros civiles y el gobierno tienen un número mayor de puentes existentes a manejar. En el futuro, esos puentes necesitaran mantenimiento y adopciones a los cambios en términos de las cargas vivas. En ese artículo vamos a ver como en Europa y América del Norte se está evaluando la capacidad de puentes de hormigón existentes. Típicamente, la evaluación es primero analítico, y después, dependiendo de la necesidad, experimental. En caso de concluir que no hay capacidad suficiente, diseñamos un refuerzo estructural para el puente. Revisaremos diferentes métodos de cálculo, inspección, pruebas de carga, y reforzamiento para puentes de hormigón existentes.

Inspeccion, mantenimiento y evaluacion de puentes de hormigon

Eva Lantsoght

10 Planning Concepts I wish I'd known Before my PhD

Eva Lantsoght

Proposed stop criteria for proof load testing of concrete bridges and verific...

Eva Lantsoght

Diagnostic load testing of bridges - case studies

Eva Lantsoght

Load testing of structures

Eva Lantsoght

Stop criteria for proof load tests verified with field and laboratory testing...

Eva Lantsoght

As the existing bridge stock is aging, improved assessment methods such as proof load testing become increasingly important. Proof load testing involves large loads, and as such the risk for the structure and personnel can be significant. To capture the structural response, extensive measurements are applied to proof load tests. Stop criteria, based on the measured quantities, are used to identify when further loading in a proof load test is not permitted. For proof load testing of buildings, stop criteria are available in existing codes. For bridges, recently stop criteria based on laboratory tests on beams reinforced with plain bars have been proposed. Subsequently, improved stop criteria were developed based on theoretical considerations for bending moment and shear. The stop criteria from the codes and the proposed stop criteria are compared to the results from field testing to collapse on the Ruytenschildt Bridge, and to the results from laboratory tests on beams sawn from the Ruytenschildt Bridge. This comparison shows that only a small change to the stop criteria derived from laboratory testing is necessary. The experimental evidence strengthens the recommendation for using the proposed stop criteria in proof load tests on bridges for bending moment, whereas further testing to confirm the stop criteria for shear is necessary.

Proof load testing of viaduct De Beek

Eva Lantsoght

CV Eva Lantsoght

Eva Lantsoght

Sound in engineering

Eva Lantsoght

Pruebas de carga en puentes de hormigon armado

Eva Lantsoght

Assessment of slab bridges through proof loading in the Netherlands

Eva Lantsoght

More from Eva Lantsoght (20)

Coneic presentation 2020

Pruebas de cortante en vigas postensadas

Pruebas de carga en puentes de hormigón armado

El futuro del hormigon

Shear testing of prestressed concrete girders

Load testing of structures

The road to breaking bridges and stereotypes

Load rating using load testing: introducing the new bridge load testing e-cir...

Como evaluar la capacidad de puentes de hormigón existentes?

Inspeccion, mantenimiento y evaluacion de puentes de hormigon

10 Planning Concepts I wish I'd known Before my PhD

Proposed stop criteria for proof load testing of concrete bridges and verific...

Diagnostic load testing of bridges - case studies

Load testing of structures

Stop criteria for proof load tests verified with field and laboratory testing...

Proof load testing of viaduct De Beek

CV Eva Lantsoght

Sound in engineering

Pruebas de carga en puentes de hormigon armado

Assessment of slab bridges through proof loading in the Netherlands

Recently uploaded

GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024

Neo4j

Free Complete Python - A step towards Data Science

RinaMondal9

How to Get CNIC Information System with Paksim Ga.pptx

danishmna97

RESUME BUILDER APPLICATION Project for students

KAMESHS29

Video Streaming: Then, Now, and in the Future

Alpen-Adria-Universität

In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.

Artificial Intelligence for XMLDevelopment

Octavian Nadolu

In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject. We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup. Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved. The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring. The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise. By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.

UiPath Test Automation using UiPath Test Suite series, part 6

DianaGray10

Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI. UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities. Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes. What will you get from this session? 1. Insights into integrating generative AI. 2. Understanding how this integration enhances test automation within the UiPath platform 3. Practical demonstrations 4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath Topics covered: What is generative AI Test Automation with generative AI and Open AI. UiPath integration with generative AI Speaker: Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP

Generative AI Deep Dive: Advancing from Proof of Concept to Production

Aggregage

National Security Agency - NSA mobile device best practices

Quotidiano Piemontese

Securing your Kubernetes cluster_ a step-by-step guide to success !

KatiaHIMEUR1

Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster. However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks. In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.

LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...

DanBrown980551

Do you want to learn how to model and simulate an electrical network from scratch in under an hour? Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)! During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook. PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides: - A fully editable and extendable library for grid component modelling; - Visualization tools to display your network; - Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses; The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well. What you will learn during the webinar: - For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills; - For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.

Introduction to CHERI technology - Cybersecurity

mikeeftimakis1

UiPath Test Automation using UiPath Test Suite series, part 5

DianaGray10

By Design, not by Accident - Agile Venture Bolzano 2024

Pierluigi Pugliese

Elizabeth Buie - Older adults: Are we really designing for our future selves?

Nexer Digital

GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...

James Anderson

Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management. The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM). Speakers: Bob Boule Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle. Gopinath Rebala Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.

Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!

SOFTTECHHUB

As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.

Pushing the limits of ePRTC: 100ns holdover for 100 days

Adtran

20240609 QFM020 Irresponsible AI Reading List May 2024

Matthew Sinclair

A tale of scale & speed: How the US Navy is enabling software delivery from l...

sonjaschweigert1

Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved: - Reduction in onboarding time from 5 weeks to 1 day - Improved developer experience and productivity through actionable findings and reduction of false positives - Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO) Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production. We will cover: - How to remove silos in DevSecOps - How to build efficient development pipeline roles and component templates - How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence) - How to streamline operations with automated policy checks on container images

Recently uploaded (20)

GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024

Free Complete Python - A step towards Data Science

How to Get CNIC Information System with Paksim Ga.pptx

RESUME BUILDER APPLICATION Project for students

Video Streaming: Then, Now, and in the Future

Artificial Intelligence for XMLDevelopment

UiPath Test Automation using UiPath Test Suite series, part 6

Generative AI Deep Dive: Advancing from Proof of Concept to Production

National Security Agency - NSA mobile device best practices

Securing your Kubernetes cluster_ a step-by-step guide to success !

LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...

Introduction to CHERI technology - Cybersecurity

UiPath Test Automation using UiPath Test Suite series, part 5

By Design, not by Accident - Agile Venture Bolzano 2024

Elizabeth Buie - Older adults: Are we really designing for our future selves?

GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...

Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!

Pushing the limits of ePRTC: 100ns holdover for 100 days

20240609 QFM020 Irresponsible AI Reading List May 2024

A tale of scale & speed: How the US Navy is enabling software delivery from l...