This document discusses the use of prefabricated steel bridges and bridge elements for accelerated bridge construction. Over 800 bridges have used prefabricated bridge elements or systems in the last 3 years, with prefabricated steel bridge systems being most common historically. Examples of completed projects using prefabricated steel bridges, modules, and elements are presented, demonstrating how steel allows for faster construction times, reuse of existing foundations, and accommodation of complex geometries. The benefits of modular steel elements for accelerated bridge construction are outlined, including conventional fabrication, light weight, maximum span lengths, and prefabrication advantages.
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The basic structural components of a suspension bridge system include stiffening girders/trusses, the main suspension cables, main towers, and the anchorages for the cables at each end of the bridge.
A bridge is the key element in a transportation system; it controls both the volume and weight of the traffic. Balance must be achieved between handling future traffic volume and loads and the cost of heavier and wider bridge structure. Economic Analysis and comparisons against competing alternatives is required as Bridges are the most expensive part of a road transportation network. Monetized & Non-Monetized Benefits that will accrue like time savings to road users, benefits to business activities (and to the economy in general) and salvage value benefits like Right-of-Way and substructure use need to be assessed as well.
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The basic structural components of a suspension bridge system include stiffening girders/trusses, the main suspension cables, main towers, and the anchorages for the cables at each end of the bridge.
A bridge is the key element in a transportation system; it controls both the volume and weight of the traffic. Balance must be achieved between handling future traffic volume and loads and the cost of heavier and wider bridge structure. Economic Analysis and comparisons against competing alternatives is required as Bridges are the most expensive part of a road transportation network. Monetized & Non-Monetized Benefits that will accrue like time savings to road users, benefits to business activities (and to the economy in general) and salvage value benefits like Right-of-Way and substructure use need to be assessed as well.
PROTECTION, REPAIR & MAINTENANCE OF RCC STRUCTURES SUBMITTED IN THE PARTIA...Rising Sher
Repair and strengthening of damaged or vulnerable reinforced concrete Structures is important in order to guarantee the safety of residents or Users. Beams are important structural elements for withstanding loads, so finding the efficient repair and strengthening methods are necessary. In terms of maintaining the safety of the structures. This research study investigated various repair, retrofit, and Strengthening techniques for reinforced concrete beams. The Comparison and summary of each repair and strengthening method are provided in this thesis. The thesis involves the literature review of current experimental test of Repair and strengthening techniques for reinforced concrete beams. The Experimental studies were summarized by describing the specimen and loading details, all the methods in the research were categorized into five chapters: section enlargement and concrete jacketing, external Reinforcement, steel plates, unbounded-type strengthening, and concrete Repairs.
Construction Of A Viaduct/Bridge: An OverviewSourav Goswami
The following project focuses on the viaduct and its various parts, describing their individual characteristics as well as the methods being used for its construction.
PROTECTION, REPAIR & MAINTENANCE OF RCC STRUCTURES SUBMITTED IN THE PARTIA...Rising Sher
Repair and strengthening of damaged or vulnerable reinforced concrete Structures is important in order to guarantee the safety of residents or Users. Beams are important structural elements for withstanding loads, so finding the efficient repair and strengthening methods are necessary. In terms of maintaining the safety of the structures. This research study investigated various repair, retrofit, and Strengthening techniques for reinforced concrete beams. The Comparison and summary of each repair and strengthening method are provided in this thesis. The thesis involves the literature review of current experimental test of Repair and strengthening techniques for reinforced concrete beams. The Experimental studies were summarized by describing the specimen and loading details, all the methods in the research were categorized into five chapters: section enlargement and concrete jacketing, external Reinforcement, steel plates, unbounded-type strengthening, and concrete Repairs.
Construction Of A Viaduct/Bridge: An OverviewSourav Goswami
The following project focuses on the viaduct and its various parts, describing their individual characteristics as well as the methods being used for its construction.
STEEL IN ARCHITECTURE-CONTEMPORARY ARCHITECTUREMohd Azmatullah
Steel is crucial in development of economy and is considered as backbone of human civilization.
* Important milestones in Architecture was development of iron and steel in construction.
*New Method based in industrialization
DRYCONSTRUCTION, RATIONAL SUSTAINABILITY, RECIYCLING
*Steel buildings and bridges were being built in the latter part of the 19th century and early 20th century during the British era,
*New trend:-
Structural steel selectively used in the construction of high-rise buildings with 2-4/ projects/ year in India, mainly in metropolitan cities those are constrained by limited land availability.
*The evolution of steel frame construction in the 20th century entirely changed the concept of the Wall and the support.
*Steel is typical because of high tensile and compressive strengths
*steel buildings save time and money as compared to conventional building systems.
*Strong internal demand and emphasis on developing infrastructure can be expected to remain the foundation of Economic growth.
Industry and infrastructure segments can be expected, the key demand drivers for steel structures in India over the next 5 years.
*Overall, there is good potential for steel structures in India owing to robust economic growth, increased government spending on infrastructure and change in mindset with regards to use of structural steel in building.
TIME , LIFE, WORKS AND
PHILOSOPIES OF F L WRIGHT
Compiled by : Manish Jain Architect Gr. Floor , Ashoka apartment Bhawani Singh Road C-scheme , Jaipur -302001 Rajasthan ( INDIA) Ph. 91-0141-2743536 , 91-9829063132 Email: fdarchitect @gmail.com Web : www.frontdesk.co.in
Charles Correa is an Indian architect and urban planner, particularly noted for his sensitivity to the needs of the urban poor and for his use of traditional methods and materials
Regarding basics of prestressed such as inventor, types of prestressing systems, methods of prestressing, types of grouting, types of cables used for prestressed structure and method of construction etc..
This presentation helps you to get the conceptual idea about Bridge Superstructures as per the Syllabus of DBATU, Last Year BTech Lonere.
4.1 Bridge Engineering: Super-structures
4.2 Simple bridges or beam bridges: Deck bridges, Through bridges, Semi-through bridges
4.3 Introduction, advantages and disadvantages: Continuous bridges, Cantilever bridges, Arch bridges, Bow-string girder type bridges, Rigid frame bridges, Portal frame bridges, Suspension bridges, Cable-stayed bridges, Composite bridges
4.4 Materials for super-structures: Cement concrete, Masonry, Steel, Timber etc.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
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Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
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.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Accelerate your Kubernetes clusters with Varnish Caching
Pre-Fabricated Steel Bridges for Accelerated Bridge Construction (ABC)
1. Steel: The Bridge Material of Choice
National Steel Bridge Alliance
A division of the American Institute of Steel Construction
www.steelbridges.org
PreFabricated
Steel Bridges
for
Accelerated
Bridge
Construction
Steel: The Bridge Material of Choice
National Steel Bridge Alliance
A division of the American Institute of Steel Construction
www.steelbridges.org
2. Current State of ABC Efforts In The US
• Over 800 bridges have
been designed or
constructed using
PreFabricated Bridge
Elements or Systems
(PBES) in last 3 years
• PreFabricated Bridge
Systems (complete
bridges) have historically
been steel bridges
• The use of steel
PreFabricated Bridge
Elements is growing fast
The following slides will feature
projects utilizing steel PreFabricated
Bridges or Modules
3. Coleman Bridge – VA
completed in 1995
PreFabricated Bridge System
4. Coleman Bridge – VA
completed in 1995
PreFabricated Bridge System
5. Coleman Bridge – VA
completed in 1995
PreFabricated Bridge System
8. 800 Structural elements
400 Gusset plates
13000 Bolts
11 weeks from contractors Notice to Proceed to
open for traffic
Eggners Ferry Bridge – KY
emergency span replacement
PreFabricated Bridge System
9. Sam White Bridge – UT
moved with Self Propelled Modular Transporters
Complete Steel Superstructures
10. Wellesley – MA
moved with Self Propelled Modular Transporters
Complete Steel Superstructures
11. Phillipston – MA
moved with Self Propelled Modular Transporters
Complete Steel Superstructures
22. Modular Steel Bridge System 1
Modular Pre-Framed Girders
• Conventional fabrication
• Tangent and skewed sections
• Options for decking
• Concrete cast off site / near site
• Precast concrete panels
• Timber
• Simple or continuous spans
23. Modular Steel Bridge System 2
Modular Shallow Bent Plate Box Girders
• Galvanized steel
• Concrete deck cast off site / near site
• Simple or continuous spans
• Very economical
24. Modular Steel Bridge System 3
Orthotropic Slab Bridge for Short Spans
• Long service life
• Low dead load vs. concrete deck
• Ideal for re-decking existing bridges
• Potential for automation of fabrication
25. Why Consider Modular Steel Elements?
Steel fabrication requirements are conventional
• Reducing risk
Steel’s light weight
• Permits re-use of existing substructure, foundation
• Minimizes shipping limitations
• Maximizes crane lift, reach & placement capabilities
Steel’s maximum span length / structure depth ratio
• Allows structure depth limitations
• Maintains existing approaches, or can increase underclearance
Steel construction can be faster
• Using bolted connections
Steel is prefabricated to a high degree of accuracy
• Accommodating complex geometries (skews, vertical curves)
• Ensuring proper field fit-up and final roadway alignment
26. Steel: The Bridge Material of Choice
National Steel Bridge Alliance
A division of the American Institute of Steel Construction
www.steelbridges.org
Steel: The Bridge Material of Choice
National Steel Bridge Alliance
A division of the American Institute of Steel Construction
www.steelbridges.org
Steel Bridges
for
Accelerated
Bridge
Construction
Editor's Notes
Demand for ABC coming from customers, Once they’ve seen 1 ABC, they ask, ‘Why can’t they all be done this way?”And FHWA is doing whatever they can to help spread the gospel.Started with big projects, now finding it’s way into more typical bridges – highway overpasses, etc.So, I’ll be showing examples of successful ABC projects using steel as the principal structural component in the prefabricated bridge elements
A really big water crossingThis is some of the off-site fabrication that was done for the Coleman Bridge over the York River in Virginia.This fabrication was done in Norfolk, VA – 40 miles downriver from the bridge site
In this project, an outmoded 2 lane structure was completely replace with a new 4 lane structure The new structure is on the original alignment and used the original river caissons. Here 1 of the 2 swing spans is being lowered onto its pier.
This complete structure replacement – all 3750’ feet of it - required road closures totaling only 9 daysCompleted in 1995, it was the forerunner of big bridge moves.
A big water crossing – this 400’ span 3 rib arch arch had been built on the pier to the right in this photo This picture was taken just as it finished its move onto a barge to be towed to the final bridge site at the head of the Narragansett BayThis was PFBES with NO ABC
A new span swinging into place for the Eggners Ferry Bridge in the Kentucky lakes district – a major tourist area in KY.An errant cargo ship – some 1000’ feet out of the nav channel - removed the previous span on January 26 of this year.In mid March a contract was let to replace the span
This is a 320’ span, 2 lanes wide, 32’ high comprised of … CLICKWork was completed in 11 weeks
We’re probably all familiar by now with the big marquee projects that make the headlines in ENR and the other trade publications2 span skewed highway overpass – maybe claimed as the longest 2 span bridge moved in North America
Taking the bridge module 1 step further is to just go ahead and complete the bridge construction before the bridge is ‘placed’This project about 10 miles west of here rolled in the completed bridgeActually, the inverset bridge we saw earlier in Lake Placid was actually the total superstructure
Similarly, a project in Philipston, MA where a single span bridge, at about a 450 skew was rolled into place. A significant difference here is that the new bridge was built on temporary towers over the existing roadway. When fabrication was finished, it was driven straight up (or down) the road to the existing piers. While this did have some impact on traffic during construction of the new bridge – occasional lane closure, lane narrowing, etc - this eliminated the need for a nearby site for prefab and simplified the requirements for the SPMT
.. And this project south of here – on about a 450 skew, AND over railroad tracksAlso on the tour yesterday
No, this is not another big move project, this is the segue to steel bridge modules. This is one of the most visible projects in NYS DOT’s ABP – the redecking of this twin arch bridge carrying I87, the Northway north from Albany. Bids were opened in June, will complete redecking of 1 bound before the snow flies
For starters I will not apologize for the fact this photo is just a little bit out of focus; as I know from 1st hand experience that fab shop conditions are not the most conducive to getting good pictures.This pic was actually taken last Thursday and it shows the steel required for the deck modules. As you can see, the fabrication requirements are very simple and straightforward, and this is typical for the framing under almost all PBUs that use 2 beams in the unit.The beams are W27x94, deck panels are 25’ long, spanning between the arch floor beams. Out to out on the panels is either 8 ‘-3” or 11’-3, depending on their transverse location in the deck”
The poster child for ABC in Massachusetts – I93 fast14This one in Medford - 3 simple spans with the deck cast continuously over the pier
I believe the field trip went to this site yesterday.(Holloway Street over Massachusetts Route 140)3 simple spans with the deck cast continuously over the pier
Here’s another kind of steel beam module. However in this case the steam beam is fabricated from .5” thick plate folded into an open bottom tub shape and then decked w/ C-I-P concrete.You’ll hear more about this tomorrow.
We’ve seen several examples of this prefabricated bridge element
Another one in developmentEither folded plate like the project in Uxbridge, or conventional 5 plate fabrication for longer spansLimited to width of press brake. Beyond 60’, developing a shallow tub fabricated in conventional manner from 5 plates.
And finally, orthotropic deck panels.Maybe not the most economical solution for everyday bridges today, but with the development of standards ..Deck and rib thicknessRib to deck weld, etcWe could get to automated production and the cost would plummet
Conventional fabrication – it’s a time tested technology, now with standard designs. OK; folded plate, orthotropic are newCost premium for ABC is directly a function of accelerated project delivery. If no APD, no premium.Re: shipping weight – can further reduce by using lightweight concrete in the decks
