Liquefaction is one of the major causes of damage to soils and foundations during earthquakes and is one of the most important aspects in seismic research and the design of foundations. Recent seismic liquefaction-related damage to soils and foundations demonstrates the need for comprehensive hazard analysis of seismic soil liquefaction, in order to reduce related damages and to protect lives. The aim of this book is to examine the disaster mechanisms and deformation evolution of seismic liquefaction and provide references for risk assessment. This book summarizes and generalizes the authors’ research into seismic liquefaction, including mechanisms, deformation characteristics, and comprehensive evaluations. First, macroscopic liquefaction phenomena observed since the beginning of this century are reviewed, and then the liquefaction potential evaluations based on in situ testing are discussed. Then, the studies of the dynamic mechanisms of liquefaction via laboratory and model tests are presented. In addition, numerical simulations for deformation analysis of liquefiable soils are described. Finally, a comprehensive evaluation of liquefaction damage during earthquakes is proposed. This book has seven chapters. Chapter1, the introduction, gives a preliminary presentation of seismic hazards in the world, and liquefaction hazards are detailed using typical earthquake damage examples. After introducing these natural hazards, current major components of liquefaction hazard analysis are reviewed. In Chap. 2, major earthquakes and related liquefaction damage since the beginning of this century worldwide are reviewed in detail. Conventional liquefaction phenomena and macroscopic characteristics (e.g., sand boiling or sand blows, ground cracking or fissures, and lateral spread) are summarized by analyzing observations from various earthquakes. In addition, several new phenomena related to earthquakes in the twenty-first century are introduced. Chapter3 presents liquefaction potential evaluations based on in situ testing, including the standard penetration, cone penetration, dynamic cone penetration or Becker penetration, and wave velocity tests. The next three chapters focus on dynamic behavior and deformation characteristic analyses of seismic liquefaction by laboratory experiment (Chap. 4), centrifugal shaking table testing (Chap. 5), and numerical simulation (Chap.6). In the above, accelerations, excess porewater pressures, and deformations are captured. These are all useful for the prevention and control of geo-disasters. Chapter7 presents a comprehensive evaluation of liquefaction damage during earthquakes in light of performance-based seismic design criteria and reliability analyses.
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Article/eBook Full Name: Design of Municipal Wastewater Treatment Plants MOP 8
Author(s): ASCE
ISBN: 978-0071663588
Published By: ASCE
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Proceedings of The Southeast Asian Conference and Exhibition in Tunnelling and Underground Space 2017
Description
This Southeast Asian Conference and Exhibition in Tunnelling and Underground Space 2017 (SEACETUS2017) is organized by IEM and endorsed by ITA-AITES, in support of the bidding to play host in Malaysia by IEM for the ITA-AITES World Tunnel Congress (WTC2020) where voting will take place at WTC2017 in Bergen Norway in June 2017. A two days post conference special training session on Tunnel Design has also been organized by ITACET-IEM.
This SEACETUS2017 has one Opening Keynote Address by ITA Vice President Prof Jenny Jinxiu Yan, four Keynote Lectures by Prof K Y Yong of NUS, Prof Charles Ng of Hong Kong University of Science and Technology, Er. Seng Tiok Poh of MRT Corporation Sdn Bhd, Dato’ Ir. Paul Ha of Gamuda Berhad respectively, and nine Special Lectures by Dr. Harald Wagner, Mr. Gus Klados, Mr. Zaw Zaw Aye, Dr. Davorin Kolic, Dr. Benson Hsiung, Dr. Noppadol Phienwej, Mr. John Davis, Mr. Alexander Mackay and Mr. Andreas Raedle respectively, with 33 contributed technial papers. This Conference Proceedings is a very valuable reference document to those who have interest in the learning and practice of tunnelling technologies
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# Full title: TR68 ASSESSMENT AND REPAIR OF FIRE-DAMAGED CONCRETE
# Organization: The Concrete Society
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Delivering 3D design, visualization, and simulation tools, this comprehensive solution helps to complete your entire engineering design process. The Digital Prototyping capabilities of Product Design Suite can help you innovate, get to market faster, reduce development cost, and make great products.
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Autodesk® Building Design Suite is a portfolio of interoperable software supporting each phase of BIM-based and CAD building design workflows to help professionals construct better buildings.
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Autodesk® Infrastructure Design Suite is a comprehensive software solution that provides a BIM for Infrastructure workflow to help you gain more accurate, accessible, and actionable insight throughout the lifecycle of your transportation, land, utility, and water projects.
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InfraWorks software supports connected BIM (Building Information Modeling) processes, letting designers and civil engineers plan and design infrastructure projects in the context of the real world.
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Autodesk Inc., a world leader in 3D design software for entertainment, natural resources, manufacturing, engineering, construction, and civil infrastructure, announced the release of 3ds Max 2018, the latest update to its 3D modelling and animation software.
The update replaces mental ray with Arnold 5 as 3ds Maxs de facto third-party render engine, introduces new options for editing motion paths, and overhauls the user interface and Max Creation Graph.
- Ships with Arnold, not mental ray
The biggest change in 3ds Max 2018 is the one we knew about in advance: that Autodesk has switched from bundling Nvidias mental ray renderer with the software to Solid Angles Arnold, which it acquired in 2016.
The bundled version can be used to render from a single machine via the viewport, but output generated in other ways is watermarked, so for command-line or network rendering, you need extra commercial licences.
Nvidia will continue to provide mental ray for 3ds Max as a third-party plugin, including a free licence with similar restrictions to the free version of Arnold bundled with 3ds Max.
You can read more about Autodesks switch from mental ray to Arnold in our original story. At the time, users welcomed Arnolds feature set, but criticised the loss of unlimited network rendering.
- MAXtoA integration plugin now includes Arnold 5
However, one change that wasnt announced at the time is the update to MAXtoA, the 3ds Max integration plugin for Arnold. According to the release notes, it now includes Arnold 5, the new version of the renderer.
At the time of posting, Solid Angle hasnt officially released Arnold 5, although it has posted a number of sneak peeks over recent months. You can read what is known about the feature set of Arnold 5 here.
According to the release notes, Arnold features provided to 3ds Max 2018 users include:
- Volumetric effects with OpenVDB support
- Atmospheric Effects
- Procedural objects (proxies) allow scene exchange with other Arnold plugins
- A comprehensive selection of integrated Arnold shaders and materials
- Supports third-party shaders compiled for Windows and Arnold 5
- Simplified image-based lighting workflow with separate background and environment capabilities
- Arnold Properties modifier controls render-time effects on a per-object basis
- Support for Arbitrary Output Variables (AOVs) for compositing and post-processing
- Depth of field, motion blur and camera shutter effects
- New virtual reality camera
- New, more user-friendly layered Standard Surface compatible with Disney models, replacing the Arnold Standard shader
- New melanin-based hair shader with artistic controls and simplified parameters for more natural results
- Support for photometric lights to facilitate interoperability with Revit
- Comprehensive support for 3ds Max physical materials and legacy textures
- All-in-one Arnold light supports textured area lights, mesh lights, skydomes and distant light sources
- New portal mode for Quad and Skydome light sources for improved sampling of indoor scenes
- New Roundness and Soft Edge options for Quad and Spot lights
- Scene converter provides scripts and presets for converting legacy scenes
- Edit motion paths directly in the viewport
- Updates to the Max Creation Graph
- New interface and workflow options
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Vehicle Tracking transportation analysis and design software is built for vehicle swept path analysis. Engineers, designers, and planners can evaluate vehicle movements on transportation or site design projects.
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