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  Reducing the time for calculations in SAP
Posted by: ivanveliki - 03-06-2010, 09:30 PM - Forum: Archive Problem - Replies (2)

I have a model with compression only frames in SAP2000 v14. When there are many nonlinear elements, the time needed for calculation the model exceedes several hours. Last time it took 3h45min to calculate a model with 50 loading steps (1 static nonlinear case).
The most funny thing is that in the manual it is said that SAP2000 has a "very fast" nonlinear solver.
Reducing the steps doesn't help much.

There are some nonlinear parameters to setup, but I do not fully understand their meaning. I do not want to reduce significantly the amount of the loading steps. I have tried to reduce the number of iterations, but the null steps becomes more than the successful steps and as a result it saves only 1 or 2 steps out of 100.

The same model in MIDAS GEN is calculated for max 10min, but I have a feeling that the results are not quite right and I want to compare the results.

Is there a way to reduce the calculation time somehow?

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  6 Spans Curve Bridge Response Spectrun Analysis by WinSTRUDL (Demo)
Posted by: kowheng - 03-06-2010, 05:05 PM - Forum: Calculation Notes & Analysis Files - No Replies

6 Spans Curve Bridge Response Spectrum Analysis by WinSTRUDL (Demo)

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:rolleyes:

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  Eurocode 2: Part 1-5
Posted by: mantas1985 - 03-06-2010, 11:43 AM - Forum: Archive - Replies (1)

Hello colleagues ,
I real need Eurocode 2: Design of concrete structures. Part 1-5. General rules. Structures with unbonded and external prestressing tendons.

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  CICIND: Model Code for Steel and Concrete Chimneys and Commentaries
Posted by: tacky2010 - 03-06-2010, 08:55 AM - Forum: Codes, Manual & Handbook - Replies (2)

Commentaries for the Model Code for Concrete Chimneys - Part A: The Shell - 2nd Edition, Rev 1

[Image: info.png]
Please check this one out



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  Communication Tower
Posted by: asumi - 03-06-2010, 06:20 AM - Forum: Request - Replies (3)

any one have Communication Tower drawings for any height or type pls upload

Regards

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  Characteristics of Geologic Materials and Formations
Posted by: Dell_Brett - 03-06-2010, 12:45 AM - Forum: Geology - Replies (5)

Characteristics of Geologic Materials and Formations: A Field Guide for Geotechnical Engineers

[Image: 10317815671332063649.jpeg]

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"Characteristics of Geologic Materials and Formations: A Field Guide for Geotechnical Engineers"
by Roy E. Hunt, Taylor & Francis Group, LLC | 2007 | ISBN: 1420042769 | 400 pages | PDF | 19 Mb

With clear, concise, and hands-on guidance, this book describes these rock and soil types in terms of their origin, mode of occurrence, and structural features in situ and presents the typical characteristics that are of engineering significance.
Properly understanding and characterizing geologic materials and formations is vital for making critical engineering decisions. Identifying and classifying rock masses and soil formations allows reasonable estimation of their characteristic properties. Comprising chapters from the second edition of the revered Geotechnical Engineering Investigation Handbook, Characteristics of Geologic Materials and Formations provides a basis for recognizing, identifying, and classifying the various rock and soil types.
This book also explains the elements that affect surface and subsurface water engineering in terms of controlling floods, erosion, subsurface flow, and seepage, as well as for water conservation. Supplying important correlations used to estimate engineering and geologic properties, the book presents correlations for intact rock, rock masses, and soil formations throughout the chapters and condenses this information into a convenient summary table in an appendix. Eliminate the need to search through narrow volumes or large handbooks with Characteristics of Geologic Materials and Formations: A Field Guide for Geotechnical Engineers, a convenient and complete guide to the techniques you need.

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  TIA/EIA 222-F, G - Structural Standards for Steel Antenna Towers and Antenna
Posted by: ascetic19 - 03-05-2010, 03:34 PM - Forum: Codes, Manual & Handbook - Replies (10)

EIA/TIA-222 F or G



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  FIB 39: Seismic bridge design and retrofit- structural solutions
Posted by: lamkin - 03-05-2010, 11:54 AM - Forum: Bridge (Project and Technology) - Replies (5)

Seismic bridge design and retrofit -- structural solutions : state-of-art report

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Title Seismic bridge design and retrofit -- structural solutions: state-of-art report
Volume 39 of Bulletin (Fédération internationale du béton)
Volume 39 of Bulletin - FIB
State-of-art report
Volume 39 of Bulletin // fib, CEB-FIP
Publisher FIB - Féd. Int. du Béton, 2007
ISBN 2883940797, 9782883940796
Length 296 pages



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  Problem with sap200 v 14
Posted by: pomenovo - 03-05-2010, 10:11 AM - Forum: Archive Problem - Replies (6)

hi
This is my problem, I hope someone has a solution?
When you install a program that works for some time how oshto should, but after 20 days shall cease to operate. Or receive any no knowledge, nor can you work with previously completed models. Krak off another that I found this forum about the program but the same is happening again ... some idea how to address this problem

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  iec 61400-1 Wind Turbines
Posted by: riprap - 03-05-2010, 09:56 AM - Forum: Books and Codes Request - Replies (3)

Dear My Friends,

I need iec 61400-1 Wind turbines

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