i'm looking for this article: Lewis WJ, Jones MS, Rushton KR. Dynamic relaxation analysis of
the non-linear response of pre-tensioned cable roofs. Comput Struct
1984;18(6):989–97.
AS3995-1994 Design of Steel Lattice Towers & Masts
Document Type: Standard
Status: Current
Publisher: Standards Australia
Committee: BD-073
Supersedes: AS 3995(Int)-1991 and DR 93147
Abstract
This Standard sets out procedures for the determination of design wind speeds and wind loads to be used in the structural design of steel lattice towers and masts for communication purposes. It further sets out the basis for the strength assessment of members and connections of lattice towers and masts. This Standard incorporates design and analysis of guyed lattice towers and masts, design of cable tension members, footing design and criteria for assessment of existing structures. Guidance relating to maintenance and inspection, and access to steel lattice towers and masts is given in the Appendices. It is not intended to apply to the structural design of transmission line structures. The design of aluminium and cold-formed steel, other than those complying with AS 1163, is not covered by this Standard, except in relation to access to the lattice towers and masts.
Scope
This Standard sets out the procedures for determination of design wind speeds and wind loads, and other appropriate standards to be used in the structural design of steel lattice towers and masts, with or without ancillaries such as antennas, for communication purposes. It also applies to other lattice towers and masts where the predominant load is wind load on the structure. It further sets out the basis for the strength assessment of members and connections of lattice towers and masts.
This Standard is not intended to apply to the structural design of transmission line structures. The design of cold-formed steel, other than those complying with AS 1163, and aluminium is not covered by this Standard.
For all other aspects of design not specifically mentioned herein, reference shall be made to the appropriate Australian Standards including AS 1170 Parts 1 and 2, AS 1554, AS 1559, AS 1650, AS 3569 and AS 4100.
NOTES:
1 A general framework for maintenance and inspection of existing structures is given in Appendix A.
2 Recommendations for access to steel lattice towers and masts are given in Appendix B. If required by the Health and Safety Authority, provision of safe access to such structures should be considered at the design stage.
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Posted by: LiviuM - 04-11-2011, 11:04 AM - Forum: Archive
- No Replies
Hello,
Some of the posted worksheets have password protected cells/parts.
If the poster is the author of those worksheets I suggest to add the password in with the post (in worksheet file or in posts text).
The protection prevents wrong modification but at the same time it's a little hard to unprotect the worksheet (password recovery). Unprotected worksheet helps in formula checking.
An Overview of the Earthquake of the Pacific Coast of Tohoku Region of Japan
Size: 15.1 MB | Format:PDF
AN OVERVIEW OF THE M9.0 EARTHQUAKE OFF THE PACIFIC COAST OF TOHOKU REGION OF JAPAN ON MARCH 11, 2011 AND ITS LESSONS
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
In order to meet the extended needs of STAAD.Pro users working in the nuclear market, STAAD.Pro V8i SELECTseries 2 has undergone the additional QA procedures in order to produce a new release that meets the requirements of the NRC. Apart from addressing over 200 reported issues and enhancement requests (all documented in the Revision History document), there have been a few key enhancements. These include:-
1) Additional nuclear design code ASME NF 3000-2004,
2) Enhancements to the AISC N690 steel design modules,
3) Support of combinations of combinations and
4) Enhancing STAAD.Pro to support upto 50 response spectrum load cases.
Additionally to keep our users fully informed, the documentation now includes a 'Known Issues' section which outlines current limitations found to exist in the program, but also suggested workarounds where possible.
This new version is now available for download from the Bentley SELECT server.
screenshot:
Download:
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Stability of Structures: Principles and Applications
Author: Chai H Yoo, Sung Lee | Size: 10.4 MB | Format:PDF | Publisher: But worth-Heine ann | Year: 2011 | pages: 529 | ISBN: 012385122X
The current trend of building more streamlined structures has made stability analysis a subject of extreme importance. It is mostly a safety issue because Stability loss could result in an unimaginable catastrophe. Written by two authors with a combined 80 years of professional and academic experience, the objective of Stability of Structures: Principles and Applications is to provide engineers and architects with a firm grasp of the fundamentals and principles that are essential to performing effective stability analysts.
Concise and readable, this guide presents stability analysis within the context of elementary nonlinear flexural analysis, providing a strong foundation for incorporating theory into everyday practice. The first chapter introduces the buckling of columns. It begins with the linear elastic theory and proceeds to include the effects of large deformations and inelastic behavior. In Chapter 2 various approximate methods are illustrated along with the fundamentals of energy methods. The chapter concludes by introducing several special topics, some advanced, that are useful in understanding the physical resistance mechanisms and consistent and rigorous mathematical analysis. Chapters 3 and 4 cover buckling of beam-columns. Chapter 5 presents torsion in structures in some detail, which is one of the least well understood subjects in the entire spectrum of structural mechanics. Strictly speaking, torsion itself does not belong to a topic in structural stability, but needs to be covered to some extent for a better understanding of buckling accompanied with torsional behavior. Chapters 6 and 7 consider stability of framed structures in conjunction with torsional behavior of structures. Chapters 8 to 10 consider buckling of plate elements, cylindrical shells, and general shells. Although the book is primarily devoted to analysis, rudimentary design aspects are discussed.
The accompanying website will include additional formulas and problems based on the author's on software which is currently being used in corporations. The website will also include equations and examples based on there personal experiences. In addition, the website will include a solutions manual for those who wish to use the book as a text book for a two-semester course. Engineers, Architects, designers, and researcher will find this print/website combination a valuable guide both in terms of its applications of verification of design of structures.
Key Features
• Balanced presentation for both theory and practice
• Well-blended contents covering elementary to advanced topics
• Detailed presentation of the development
• Computer programs will be made available through the senior author's web page
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Published at the end of December 2003, European standard BS EN 14161 specifies requirements and gives recommendations for the design, materials, construction, testing, operation, maintenance and abandonment of pipeline systems used for transportation in the petroleum and natural gas industries.
![[Image: 11584519742607361260.jpg]](https://pic.civilea.com/images/11584519742607361260.jpg)
![[Image: info.png]](https://forum.civilea.com/postgen/icon/info.png){kind=icon}
![[Image: Download.png]](https://forum.civilea.com/postgen/icon/Download.png){kind=icon}
![[Image: 38331335311271302924.png]](https://pic.civilea.com/images/38331335311271302924.png)
![[Image: 59345696454894011366.png]](https://pic.civilea.com/images/59345696454894011366.png)
![[Image: 98442818089819884302.jpg]](https://pic.civilea.com/images/98442818089819884302.jpg)