- Ghana experiences occasional damaging earthquakes and many buildings would not withstand shaking.
- The presentation recommends developing construction guidelines for single-story confined masonry and up to two-story reinforced concrete buildings to improve earthquake resistance.
- The guidelines aim to provide simple rules for craftsmen and technologists to construct earthquake-resistant housing.
Seismic analysis of multi storey reinforced concrete buildings frame”ankialok
The opinion that designing new buildings to be Earthquake resistant will cause substantial additional costs is still among the constructional professionals. In a country of moderate seismicity adequate seismic resistance of new buildings may be achieved at no or no significant additional cost however the expenditure needed to ensure adequate seismic resistance may depend strongly on the approach selected during the conceptual design phase and the relevant design method. Regarding the conceptual design phase early collaboration between the architect and civil engineering is crucial.
A-1 Concrete Leveling and Foundation Repair Western New York raises sunken concrete slabs using patented equipment. We drill 1” diameter holes through the concrete and, using hydraulic pressure injection to pump below the slab, fill the voided areas below and raise the slab back to its' original position. Raising your existing slabs saves 50%-70% versus replacement and is environmentally friendly. "We Pump It Up!"
Asbestos Removal London Case Study – ResidentialSimply Marcomms
Deconstruct UK Limited has launched a series of Slideshare Presentations to demonstrate their asbestos removal capabilities in the London and surrounding areas.
Seismic analysis of multi storey reinforced concrete buildings frame”ankialok
The opinion that designing new buildings to be Earthquake resistant will cause substantial additional costs is still among the constructional professionals. In a country of moderate seismicity adequate seismic resistance of new buildings may be achieved at no or no significant additional cost however the expenditure needed to ensure adequate seismic resistance may depend strongly on the approach selected during the conceptual design phase and the relevant design method. Regarding the conceptual design phase early collaboration between the architect and civil engineering is crucial.
A-1 Concrete Leveling and Foundation Repair Western New York raises sunken concrete slabs using patented equipment. We drill 1” diameter holes through the concrete and, using hydraulic pressure injection to pump below the slab, fill the voided areas below and raise the slab back to its' original position. Raising your existing slabs saves 50%-70% versus replacement and is environmentally friendly. "We Pump It Up!"
Asbestos Removal London Case Study – ResidentialSimply Marcomms
Deconstruct UK Limited has launched a series of Slideshare Presentations to demonstrate their asbestos removal capabilities in the London and surrounding areas.
Asbestos Removal London Case Study – EducationSimply Marcomms
Deconstruct UK Limited has launched a series of Slideshare Presentations to demonstrate their asbestos removal capabilities in the London and surrounding areas.
Soil Nails Reinforcement - Design nails soil stabilization --مسامير قضبان تسل...Dr.Youssef Hammida
تثبيت وتسليح - تربة الجدران - الساندة بالمسامير
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Soil nail wall - Soil nailing - soil nailing walls
Soil nailing is an earth retention technique using grouted tension-resisting steel elements (nails) that can be design for permanent or temporary support. The walls are generally constructed from the top down. Typically, 3 to 6 feet of soil is excavated from the top of the planned excavation. Near-horizontal holes are drilled into the exposed face at typically 3 to 6 foot centers. Tension-resisting steel bars are inserted into the holes and grouted. A drainage system is installed on the exposed face, followed by the application of reinforced shotcrete facing. Precast face
hie guys
Its a small presentation on Earthquake Resistant Structures
some basic fundamentals about its causes its effect and few techniques to resist it..
Asbestos Removal London Case Study – EducationSimply Marcomms
Deconstruct UK Limited has launched a series of Slideshare Presentations to demonstrate their asbestos removal capabilities in the London and surrounding areas.
Soil Nails Reinforcement - Design nails soil stabilization --مسامير قضبان تسل...Dr.Youssef Hammida
تثبيت وتسليح - تربة الجدران - الساندة بالمسامير
تستخدم تقنية المسامير في تثبيت المنحدرات الترابية والجدران الاستنادية والأنفاق الى تدعيم حفريات التأسيس العميقة. وتتلخص الطريقة في غرز قضبان معدنية طويلة ذات المقطع الصغيرامام المنحدر المراد تدعيمه بحيث تخترق هذه القضبان كتلة التربة إلى مسافة ونباعدات محددة مثبتة في منطقة خارج مخروط الانهيار حيث يؤمن استقرار سطح التربة على وجه المنحدر بطبقة تغطية رقيقة من الحجر او الخرسانة المقذوفة مسلحة بشبكة معدمية إنشائية مهمتها حجز التربة بين المسامير ويثبت المسمار نفسه على طبقة البيتون المقذوف بصفيحة تثبيت معدنية مربعة الشكل
Soil nail wall - Soil nailing - soil nailing walls
Soil nailing is an earth retention technique using grouted tension-resisting steel elements (nails) that can be design for permanent or temporary support. The walls are generally constructed from the top down. Typically, 3 to 6 feet of soil is excavated from the top of the planned excavation. Near-horizontal holes are drilled into the exposed face at typically 3 to 6 foot centers. Tension-resisting steel bars are inserted into the holes and grouted. A drainage system is installed on the exposed face, followed by the application of reinforced shotcrete facing. Precast face
hie guys
Its a small presentation on Earthquake Resistant Structures
some basic fundamentals about its causes its effect and few techniques to resist it..
Looking to the past to understand the future
To understand fully the future direction of the oil and gas sector here in WA, it is important to consider and recognise the recent history and current challenges being experienced. This history and current challenges formed the first section of the presentation highlighting the scale of expansion of the industry here over the past decade, where we have moved from around 20mtpa LNG to a anticipated output level of some 50mtpa in WA alone, which, when combined with the additional capacity being constructed in QLD and NT will make Australia the world’s largest exporter of LNG by the end of this decade.
Speaker: Dr Jinzhu Xia, Head Consultant, Marine, Granherne, Australia
Date: Tuesday, 6 March 2012
Hosted by: WA Oil & Gas Facilities Group a co-venture between Engineers Australia and the Society of Petroleum Engineers (SPE)
The EPCM of writing tenders: How engineers can successfully build compelling ...Engineers Australia
Date: Tuesday, 7 February 2012
Presenters: David Lunn BEng, MBA and Nigel Dennis BEng, MBA, GAICD Joint owners and directors of Bid Write Pty Ltd
Hosted by: WA Oil & Gas Facilities Group a co-venture between Engineers Australia and the Society of Petroleum Engineers (SPE)
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
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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.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
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We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
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Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
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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.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
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Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
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Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
ICWES15 - Rules for the Povision of Earthquake Resistance in Small Buildings in Ghana. Presented by Carlien D Bou-Chedid, Ghana
1. Rules for the Provision of
Earthquake Resistance in
Small Buildings in Ghana
by
Ing. (Mrs) Carlien Bou-Chedid
Presentation at ICWES15 - Australia 2011
2. Seismic Activity in Ghana
Source: USGS National Earthquake Information Centre & International Seismological Centre
Although earthquakes are rare in Ghana, they do occur and
can produce very damaging consequences. The largest on
record was Ms 7.1 in 1862 (Similar to Haiti). The most
recent damaging earthquake was Ms 6.5 in 1939.
Presentation at ICWES15 - Australia 2011
3. Areas at Risk
Areas most at risk include regions where the capital city
Accra, two major port cities and two other regional capitals
are situated. These are also some of the most densely
populated areas of the country.
Structures in Ghana must therefore be built to withstand
strong earthquakes without excessive deterioration.
The majority of buildings in Ghana are one and two storey
buildings. Professional Engineers are often not involved in
their design or construction. Poorly trained craftsmen are
usually responsible for construction.
Presentation at ICWES15 - Australia 2011
4. Factors Affecting Building
Performance
A study of building practice currently used in the
construction of many small buildings suggests that they will
be unable to respond favourably in event of an earthquake.
Building performance in earthquakes is affected by
Architectural forms
Structural forms
Methods of construction
Materials used
Presentation at ICWES15 - Australia 2011
5. Architectural Forms
Buildings are individually designed.
They are often irregular in plan.
Water may be stored in water tanks on the roof.
Gable walls are common.
Large window and door openings are used.
Open car ports and garages can often be an integral part of
the building.
Several decorative features such as balustrades, fin wall etc
are also used.
Presentation at ICWES15 - Australia 2011
6. Structural Forms, Materials &
Methods
Two basic forms are common. Unreinforced masonry
usually tied at lintel level with a beam, and reinforced
concrete.
Materials are ordinary portland cement, mild steel,
unprocessed aggregates and large masonry blocks (125mm
X 200mm X 400mm) made from cement and sand.
Material proportions for concrete may be determined by
eye. Foundations can be shallow (750mm). Columns will
often be built to match wall thickness (125mm x 125mm).
Stirrups and links are anchored in 90o bends.
Presentation at ICWES15 - Australia 2011
8. Vulnerability of Current
Building Stock
Most areas in the south of Ghana lie within a seismic zone
assigned a peak ground acceleration of 0.35g. Other zones
are 0.25g, 0.15g. These correspond to VIII, VII and VI on a
Modified Mercalli Scale.
% of Buildings Reaching Each
Damage State
Damage State (Modified Mercalli Intensity)
Sandcrete Block Reinf. Concrete
VI VII VIII IX VI VII VIII IX
0 – None (No Damage) 15 0 0 0 95 90 50 20
1 – Minor( Very little non-structural damage) 55 50 15 5 5 10 25 25
2 - Moderate (Widespread non-structural damage) 25 25 25 15 - - 25 55
3 - Severe (Extensive non-structural & some structural damage) 5 25 55 55 - - - -
4 – Very Severe (Completely destroyed) - - 5 25 - - - -
Presentation at ICWES15 - Australia 2011
9. Comments
Structural forms used in Ghana are a mixture of reinforced
concrete construction and confined masonry construction.
Reinforced concrete construction for earthquake resistance
is complex. RC frames form the main load resisting system.
Special detailing is required and it requires special skill.
Confined masonry construction is much simpler no special
skills are required. Masonry block walls confined by tie
beams and tie columns form the main lateral load resisting
systems. The masonry block unit must be load bearing.
Presentation at ICWES15 - Australia 2011
10. Recommended Guidelines
Engineering rules are to be presented in two separate
guidelines.
Guidelines for construction of single storey buildings are to
be based on confined masonry construction and may be
used by craftsmen.
Guidelines for construction of buildings up to two stories
may be based on reinforced concrete design and must be
implemented by technologists.
Both guidelines must give direction on good construction
practice. Especially bending of stirrups and links to 135o .
Presentation at ICWES15 - Australia 2011
11. RC buildings up to Two Stories
These can be based on existing rules
“Guidelines for Earthquake Resistant Non-
Engineered Construction” (Arya et al, 2010)
Cover to steel in Columns and beams
should be 30mm rather 25mm to reflect the
very aggressive atmosphere experienced in
Ghana.
Fixing details will be required for the
prestressed precast concrete systems in
current use.
Presentation at ICWES15 - Australia 2011
12. Rules for Single Story buildings
Minimum wall thickness 125mm
Tie columns and tie beams to
flush with walls
Teeth like indentation at the point
of connection with tie columns or
steel dowel bars
Sandcrete blocks to be load
bearing.
Minimum wall density of 5% to
reflect uncertainty associated
with sandcrete block
Presentation at ICWES15 - Australia 2011
13. Conclusion and Recommendations
Buildings in Ghana must be constructed to
withstand earthquakes
Guidelines for construction of buildings up to
two stories should be produced using reinforced
concrete design as a basis. Technologists can be
responsible for construction.
Confined masonry is recommended in Ghana for
single storey construction as it is less demanding.
Craftsmen can be responsible construction.