Published By:Canterbury Earthquakes Royal Commission
Published Year:February 2012
Abstract:
Compusoft Engineering Limited was engaged by StructureSmith Ltd to undertake a non-linear seismic analysis of the CTV building which collapsed as a consequence of the 22nd February 2011 Lyttelton aftershock. It is the intent that the analyses outlined within this report further enhance the understanding of the CTV performance during the 4th September 2010 Darfield earthquake, and the February 2011 Lyttelton aftershock.
The non-linear analyses outlined in this report are intended to;
• Assist with the identification of the probable sequence of failure.
• Report displacement and storey drift demands, identifying the onset and progression of damage throughout the structure.
• Monitor seismic demands on critical structural elements.
• Determine whether column hinging is expected, and if so, to what extent.
• Investigate the significance and effect of vertical accelerations on the performance of the structure.
• Investigate the variances in structural form i.e. the contribution of the masonry infill panels, and precast spandrel panels to the seismic response and performance of the structure.
The models used for all analyses have been based on building geometry, record structural drawings [1], material tests [2], along with published guidance on the hysteretic behaviour of detailing present within the CTV building.
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Bentley Systems Inc., the leading company dedicated to providing comprehensive software solutions for sustaining infrastructure, has released the 10.02.00.12 version RM Bridge CONNECT Edition is a major offering within the Bentley bridge solution, which also includes world-class applications for road design, digital terrain modeling, bridge design, structural engineering and analysis, steel detailing, concrete reinforcement, and bridge load rating and analysis.
RM Bridge is compatible with MicroStation, Bentley’s common design platform, and ProjectWise, Bentley’s platform for connecting people and information across project teams. This integration substantially broadens the movement of data not only within the bridge delivery disciplines (planning through construction) but also across the life of the bridge. Running RM Bridge with ProjectWise and/or Bentley Navigator, users are able to perform a synthesis of bridge information modeling, continuously sharing, reusing, and repurposing data. They enjoy the many benefits of real-time collaboration and streamlined engineering content management – working across multiple locations and time zones, among numerous contributors, companies, and stakeholders.
With this system, data integration happens at a fairly granular level, enabling users to:
- Browse quickly for the right information, including legacy bridge data
- Create an array of structure and infrastructure project models and flyarounds
- Utilize raster and other data formats
- Check for geometrical conflicts in the multi-discipline infrastructure model
- Simulate and manage construction schedules
By implementing the Bentley bridge solution, users enjoy the full benefits of a real-world solution for delivery, maintenance, and operation of bridge systems, and improve ROI in data at every step of the bridge lifecycle.
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The Cause of Cracking in Post-Tensioned Concrete Box Girder Bridges and Retrofit Procedures
Author(s): Walter Podolny
Published By:PCI
Published Year:1985
Size: 1.4 MB
Quality:Unspecified
Abstract: The appearance of distress in the form of cracking in any concrete structure is one of concern and consternation to all parties involved. It is evidence of an unfavorable stress condition and if serious enough could affect the structure’s integrity. Cracking may occur for a number of reasons but usually is the result of the interaction of several causative factors. These factors taken individually may be minor but when superimposed can result in distress. This paper presents documentation of problems that have led to cracking in post-tensioned concrete box girder bridges in Europe as well as in the United States. It discusses cracking resulting from inadequate flexural and shear capacity, thermal stress cracking, and cracking resulting from tendon curvature and tendon misalignment. Also discussed are possible retrofit measures. The intent of this paper is to bring these problems to the attention of the engineering and construction professions with the hope of precluding their recurrence.
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Dear All,
Please anybody can upload the CISC: Handbook of Steel Construction 11th Edition.
Your immediate help will be highly appreciable and helpful for me.
entley Systems Inc., the leading company dedicated to providing comprehensive software solutions for sustaining infrastructure, has released the 10.00.00.49 version WaterGEMS CONNECT Edition is a hydraulic modeling application for water distribution systems with advanced interoperability, geospatial model building, optimization, and asset management tools.
WaterGEMS provides you with a comprehensive yet easy-to-use decision-support tool for water distribution networks. The software helps improve your knowledge of how infrastructure behaves as a system, how it reacts to operational strategies, and how it should grow as population and demands increase.
From fire flow and water quality simulations, to criticality and energy cost analysis, WaterGEMS has everything you need in a flexible multi-platform environment.
WaterGEMS provides numerous software tools for:
- Intelligent planning for system reliability: The capability of the water network to adequately serve its customers must be evaluated whenever system growth is anticipated. With WaterGEMS, effectively identify potential problem areas, accommodate service area growth, and plan capital improvements.
- Optimized operations for system efficiency: Realistically modeling the operation of complex water systems can be difficult. With WaterGEMS, model pump accurately, optimize pumping strategies, and plan shutdowns and routine operations to minimize disruption.
- Reliable asset renewal decision support for system sustainability: When it comes time to renew or replace your water infrastructure, the amount of asset-related information you must consider can be overwhelming. WaterGEMS tools such as Pipe Renewal Planner makes the task much easier by analyzing and comparing a wide range of variables to prioritize renewal decisions.
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Mod note:
This is not the book "Structural dynamics of earthquake engineering: Theory and application using Mathematica and Matlab"
It is 220MB of unsorted Structural Dynamics of Earthquake Engineering materials,
doc,pdf,jpg,ppt,...
===> Moved to bad books section.
Always check what you post.
Lisine
Hello,
I would like to know if someone here has any experience with Wykeham Farrance triaxial system (manual, automatic, static, dynamic) or even issues.
With regards
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