In SAP2000 when a steel material is defined, in "other properties for steel materials", SAP2000 requires minimum yield and tensile stress (ok) and "effective" values for yield and tensile stress, someone could explain me what are this "effective" values.
Product Description:
A review of available experimental data on the behaviour of concrete at both the material and structural levels reveals the unavoidable development of triaxial stress conditions prior to failure which dictate the collapse and ductility of structural concrete members; moreover - and in contrast with widely-accepted tenets - it can be shown that the post peak-stress behaviour of concrete as a material is realistically described by a complete and immediate loss of load-carrying capacity. Therefore, rational analysis and design of concrete components in accordance with the currently-prevailing limit-state philosophy requires the use of triaxial material data consistent with the notion of a fully-brittle material, and such an approach is implemented in this book by outlining a finite-element for the prediction of the strength, deformation, and cracking patterns of arbitrary structural forms encompassing plain, reinforced, and prestressed concrete members." Structural concrete: Finite-Element Analysis for Limit-State Design" contains numerous worked examples which show both the unifying generality of the proposed approach and the reliability of the ensuing computer package for which the sole input is the specified cylinder strength of concrete and the yield stress of steel. This book not only offers a better phenomenological understanding of structural concrete behaviour but also illustrates, by means of suitable examples, the type of revision required for improving design methods in terms of both safety and economy.
All the credits (including mine) goes to lamkin & engr.imranullah (our members)
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Does anybody have any experience with the MSC Patran neutral file format. I would like to write a program to take the output from my frame analysis program and convert it to a *.out file to import into Patran. My problem is that there a no resources out there at all for working with this format.
Hello,
I need an example or calcul note for machnies foundations.
Vibrations + shear.
I have the book "handbook of Machines foundation" this is very general.
Win 32bit & Win 64bit | Image type: ISO | 2.91 GB for Win32 | 3.06 GB for Win64
Languages included: English, French, Spanish, Brazilian-Portuguese
Downloaded from Rapidshare and installed the 32 version. Even this basic product need a duble layer DVD. I suppose if after deleting other languages folders (for english language only users) it will fit in a single layer DVD.
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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.
* Publisher: Thomas Telford Ltd
* Number Of Pages: 332
* Publication Date: 1996-01-01
* ISBN-10 / ASIN: 0727734717
* ISBN-13 / EAN: 9780727734716
Product Description:
This book provides a comprehensive survey of the dynamic stresses in railway bridges under moving vehicles and summarizes important theoretical and experimental results which has been obtained from various research programs dealing with European railway bridges. Drawing on the vast experience of the author, and his work for the Office for Research and Experiments of the International Union of Railways, "Dynamics of Railways Bridges": investigates both bridge and moving railway vehicles; summarizes the basic dynamic characteristics of railway bridges - natural frequencies and damping); describes the effect of parameters such as the speed of vehicles, track irregularities etc. on the dynamic behaviour of bridges; and examines the vertical, horizontal longitudinal and horizontal transverse effects - starting and braking forces, lateral impacts etc).With the aid of experimental data obtained from many bridge projects, "Dynamics of Railway Bridges" describes some of the practical solutions and methods that have been applied and will be of benefit and value to civil and railway engineers, researchers - in fact anyone who needs to be aware of the dynamic behaviour of bridges when subjected to moving loads.
credit to N. Realart
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High Performance Building Guidelines
Andrea Woodner | Diane Pub Co | April 1999 | English | ISBN-10: 0788184687 | 146 pages | PDF | 2 MB
The central mission of the New York City Department of Design and Construction (DDC) is to deliver the City’s construction projects in a safe, expeditious, cost-effective manner, while maintaining the highest standards of architectural, engineering, and construction quality. These Guidelines identify opportunities to improve DDC’s business practices which will in turn yield the highest overall return for the City’s capital investments.
High performance buildings maximize operational energy savings; improve comfort, health, and safety of occupants and visitors; and limit detrimental effects on the environment. The Guidelines provide instruction in the new methodologies that form the underpinnings of high performance buildings. They further indicate how these practices may be accommodated within existing frameworks of capital project administration and facility management.
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