This book is based on the discussions and papers prepared for the NATO Advanced Research Workshop that took place under the auspices of the NATO Security Through Science Programme and addressed urban water management problems. The workshop sought to critically assess the existing knowledge on Xenobiotics in urban water cycle, with respect to diverse conditions in participating countries, and promote close co-operation among scientists with different professional experience.
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Unique single reference supports functional and cost-efficient designs of blast resistant buildings
Now there's a single reference to which architects, designers, and engineers can turn for guidance on all the key elements of the design of blast resistant buildings that satisfy the new ASCE Standard for Blast Protection of Buildings as well as other ASCE, ACI, and AISC codes. The Handbook for Blast Resistant Design of Buildings features contributions from some of the most knowledgeable and experienced consultants and researchers in blast resistant design.
This handbook is organized into four parts:
Part 1, Design Considerations, sets forth basic principles, examining general considerations in the design process; risk analysis and reduction; criteria for acceptable performance; materials performance under the extraordinary blast environment; and performance verification for technologies and solution methodologies.
Part 2, Blast Phenomena and Loading, describes the explosion environment, loading functions needed for blast response analysis, and fragmentation and associated methods for effects analysis.
Part 3, System Analysis and Design, explains the analysis and design considerations for structural, building envelope, component space, site perimeter, and building system designs.
Part 4, Blast Resistant Detailing, addresses the use of concrete, steel, and masonry in new designs as well as retrofitting existing structures.
As the demand for blast resistant buildings continues to grow, readers can turn to the Handbook for Blast Resistant Design of Buildings, a unique single source of information, to support competent, functional, and cost-efficient designs.
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Take your Excel formulas to the next level with this updated reference
John Walkenbach's name is synonymous with excellence in computer books that decipher complex technical topics. Known as "Mr. Spreadsheet," Walkenbach provides you with clear explanations on all the methods you can use to maximize the power of Excel with formulas within the frameworks of all the new features of Excel 2010.
You'll learn how to create financial formulas, maximize the power of array formulas, develop custom worksheet functions with VBA, debug formulas, and much more. This invaluable reference is fully updated for the new Microsoft Office release and provides comprehensive formulas coverage, delivering more than 800 pages of Excel tips, tricks, and techniques you won't find anywhere else.
1. Demonstrates how to use all the new features of Excel 2010 to maximize your formulas
2. Shows how to develop custom worksheet functions with VBA, debug formulas, create financial formulas, and more
3. Serves as an indispensable reference no matter your skill level
4. Includes a valuable CD-ROM with sample files, templates and worksheets from the book, plus John Walkenbach's award-winning Power Utility Pak
Prepare to excel with Excel when you have John Walkenbach and Excel 2010 Formulas by your side!
DIRECT LINKS
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When we design structures for wind action/loading, pressure/force coefficients are required.
Design code provides values, for common building shapes, but for unusual building shapes, it's hard to say if they are the right ones.
And most clients don't pay for wind tunnel study.
ANSYS fluid dynamics/fluid flow (CFD/CFX) module has the ability to perform this type of analysis similar to a wind tunnel simulation.
By using workbench and importing from autocad:
- the external surface (shape) of building,
- or simplified building shape as solid,
a 3D model can be done in matter of minutes.
Although I think analysis would take a few days.
So if you have an example/tutorial in Ansys of simple building shape and a comparison between analysis values and design code pressure coefficients please share it.
If it's in workbench, modeled with graphical interface it will be highly appreciated.
1.1 This document establishes general principles for the execution of micropiles.
They are for:
- drilled micropiles a shaft diameter not greater than 300 mm;
- driven micropiles a shaft diameter or a maximum shaft cross sectional extension not greater than 150 mm.
1.2 Micropiles are structural members to transfer actions to the ground and may contain bearing elements to transfer directly or indirectly loads and or to limit deformations. Their shaft and base resistance may be improved (mostly by grouting) and they may be constructed with (see Figure 1):
- uniform cross section (straight shaft); or
- telescopically changing shaft dimensions;
- shaft enlargements; and/or
- base enlargement.
1.3 Other than practical considerations, there are no limitations regarding, length, rake (definition of rake, see Figure 2), slenderness ratio or shaft and base enlargements.
1.4 The provisions of the document apply to (see Figure 3):
- single micropiles;
- micropile groups;
- reticulated micropiles;
- micropile walls.
1.5 The micropiles which are the subject of this document can be installed into the ground using drilling, driving or a combination of these methods.
1.6 The material of micropiles covered by this document can be:
- steel or other reinforcement materials;
- grout, mortar or concrete;
- a combination of above.
1.7 Micropiles may be used for:
- working under restricted access and/or headroom conditions;
- foundations of new structures (particularly in very heterogeneous soil or rock formations);
- reinforcing or strengthening of existing structures to increase the capacity to transfer load to depth with acceptable load settlement characteristics, e.g. underpinning works;
- reducing settlements and/or displacements;
- forming a retaining wall;
- reinforcing of soil to form a bearing and/or retaining structure;
- improving slope stability;
- securing against uplift;
- other applications where micropile techniques are appropriate.
1.8 Mixed-in-place columns and timber piles are not included in this document. Columns constructed by jet grouting are covered by EN 12716. Ground anchors are covered by EN 1537.
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I'm looking for books of the author Larry Andrews like
Special Functions of Mathematics for Engineers, Second Edition (SPIE Press Monograph Vol. PM49)
ISBN-10: 0819426164
ISBN-13: 978-0819426161
Introduction to Differential Equations With Boundary Value Problems
ISBN-10: 0060402938
ISBN-13: 978-0060402938
Elementary Partial Differential Equations with Boundary Value Problems
ISBN-10: 0120595109
ISBN-13: 978-0120595105
Ordinary Differential Equations With Applications
ISBN-10: 0673158004
ISBN-13: 978-0673158000
Architect's Legal Handbook is the most widely used reference on the law for architects in practice, and the established leading textbook on law for architectural students.
The ninth edition includes all the latest development in the law that affect an architect's work, and comprehensive coverage of relevant UK law topics. Most significantly, the chapter on the JCT contracts has been completely revised to cover the 2005 update.
Contributions by the foremost legal and architectural experts in the UK
Full coverage of the JCT 2005 update
New chapter on procurement
Selected bibliography provides useful references to further reading
Tables of Cases, Statutes and Statutory Instruments provide full referencing for cited cases
Architect's Legal Handbook is the essential legal reference work for all architects and students of architecture.
* The comprehensive legal reference for architects
* Includes new chapter on procurement
* Fully coverage of the JCT 2005 Contract updates
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A passive two-step control fluid damping device for seismic protection of structures PhD Thesis
Author: Wang, Hongbo, Ph.D | Format:PDF | Publisher: STATE UNIVERSITY OF NEW YORK AT BUFFALO | Year: 2008 | pages: 215
Abstract:
This dissertation describes the development of a new passive two-step control damping (PTCD) device for the seismic protection of structures. The new device is a passive system that acts as a semi-active system by delivering two-step variable damping forces. It can be applied directly to structures in series with a linearly elastic brace, or as part of a seismic isolation system by providing an added fail-safe function when the displacement of the structure becomes excessively large. The PTCD device is simple, cheap and reliable, because its operation does not need the external power, sensors, computers or special algorithms that are part of a standard active or semi-active system.
Based on the operating principles of mechanical valves, a prototype PTCD device has been manufactured and tested under both sinusoidal waves and earthquake ground motions in the laboratory. Test results show that the PTCD device consistently provides the analytically predicted two-step variable damping functions. The analytical model was further simplified to allow direct calculation of the two-step force-displacement relationship to encourage use of the PTCD device in engineering practice.
Using a simplified approach, parametric studies were conducted on the seismic responses of a single-degree-of-freedom (SDOF) system with the PTCD device installed and subjected to the MCEER west coast ground motions. When compared to corresponding systems installed with conventional passive dampers, the proposed PTCD device provided superior performance for earthquakes of different intensities. This was illustrated by the significantly reduced displacement responses under earthquakes with near-fault characteristics when two-step damping is provided, and a lower level acceleration response under low and moderate earthquakes.
To illustrate the effectiveness of this device in limiting extra large isolator displacement, a base isolation system was experimentally studied. This isolation system consisted of a roller isolation bearing (RIB), and the proposed PTCD device. Shake table tests were performed on a rigid superstructure equipped with the base isolation system. Experimental results showed good agreement with the numerically predicted results. Both the analytical and experimental results illustrated that the PTCD device effectively reduced bearing displacements and provided better performance for isolated structures.
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