Design earthquake ground motions for dynamic analyses are typically specified as outcrop motions, which may have to be modified for input at the base of a FLAC model. Often a ‘deconvolution’ analysis using a 1-D wave propagation code, such as the program SHAKE, is performed to obtain the appropriate input motion at depth. This seemingly simple analysis is often the subject of considerable confusion.
In this paper the theory and operation of the program SHAKE and input requirements of FLAC are reviewed, and the application of SHAKE for adapting design earthquake motions for FLAC input is described. Numerical examples illustrating typical cases are presented, and several questions that commonly arise are addressed.
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Autodesk Inventor 3D CAD software products offer a comprehensive, flexible set of software for 3D mechanical design, product simulation, tooling creation, and design communication. Inventor takes you beyond 3D to Digital Prototyping by enabling you to produce an accurate 3D model that can help you design, visualize, and simulate your products before they are built. Digital Prototyping with Inventor helps companies design better products, reduce development costs, and get to market faster.
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IMPORTANT NOTICE: You may use this software for evaluation purposes only.
If you like it, it is strongly suggested you buy it to support the developers.
By any means you may not use this software to make money or use it for commercial purpose.
Autodesk Inventor 3D CAD software products offer a comprehensive, flexible set of software for 3D mechanical design, product simulation, tooling creation, and design communication. Inventor takes you beyond 3D to Digital Prototyping by enabling you to produce an accurate 3D model that can help you design, visualize, and simulate your products before they are built. Digital Prototyping with Inventor helps companies design better products, reduce development costs, and get to market faster.
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IMPORTANT NOTICE: You may use this software for evaluation purposes only.
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By any means you may not use this software to make money or use it for commercial purpose.
Application of Super Absorbent Polymers (SAP) in Concrete Construction: State-of-the-Art Report Prepared by Technical Committee 225-SAP (RILEM State-of-the-Art Reports)
This is the state-of-the-art report prepared by the RILEM TC “Application of Super Absorbent Polymers (SAP) in concrete construction”. It gives a comprehensive overview of the properties of SAP, specific water absorption and desorption behaviour of SAP in fresh and hardening concrete, effects of the SAP addition on rheological properties of fresh concrete, changes of cement paste microstructure and mechanical properties of concrete. Furthermore, the key advantages of using SAP are described in detail: the ability of this material to act as an internal curing agent to mitigate autogenous shrinkage of high-performance concrete, the possibility to use SAP as an alternative to air-entrainment agents in order to increase the frost resistance of concrete, and finally, the benefit of steering the rheology of fresh cement-based materials. The final chapter describes the first existing and numerous prospective applications for this new concrete additive.
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Wetland identification, although theoretically straightforward, is not cut and dry as a practice. Despite the time and expense, it is an economic and environmental necessity.
The Definitive Guide to the Practice of Wetland Identification
The second edition of the bestselling Practical Handbook for Wetland Identification and Delineation offers solutions to real-world problems in the scientific and regulatory aspects of wetlands. The authors present characteristics and indicators of wetlands that are the focus of the jurisdictional issue, and discuss strategies and methods for making wetland identifications and delineations that meet federal requirements.
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This textbook is tightly focused on the problem of anthropogenic climate change. It is unique among textbooks on climate change in that it combines an introduction of the science with an introduction to the non-science issues such as the economic and policy options. Unlike more purely descriptive textbooks, it contains the quantitative depth that is necessary for an adequate understanding of the science of climate change. The goal of the book is for a student to leave the class ready to engage in the public policy debate on this issue. This is an invaluable textbook for any introductory survey course on the science and policy of climate change, for both non-science majors and introductory science students.
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Hi. I am noticing lately a growing number of posts that refer to premium sites for download, i.e., sites where one has to pay to get access to the material.
It is my understanding that this forum aims to the free distribution of materials in english language, and so those posts could be understood not complying with rule 14 of the forum, since not "public sharing" sites, and constituting some form of advertisement ("hey you could get that through a premium account") for those sites.
I endear the administrators to consider this question and effectively enforce free distribution only of materials through the forum, so that users will avoid wasting time organizing downloads going to nowhere.
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