Search found 123 matches
- 11 Mar 2015, 19:49
- Forum: 02-Getting started with the modelling
- Topic: Incremental dynamic analysis vs pushover
- Replies: 4
- Views: 5967
Re: Incremental dynamic analysis vs pushover
<t>I am not sure if I totally understood your point, but discrepancies between pushover results and dynamic analyses has already been cited in the past. <br/> <br/> Static pushover analysis (SPA) lacks a rigorous theoretical foundation since the nonlinear response of a structure is assumed to be rel...
- 08 Mar 2015, 17:29
- Forum: 03-Analytical/modelling capabilities
- Topic: Modeling shear critical column hysteresis
- Replies: 5
- Views: 4029
Re: Modeling shear critical column hysteresis
<t>Dr. Pinho, thank you really so much for your input on this topic. I had forgotten such parameter. That helped. THANK YOU!<br/> <br/> Dear Rashid, many thanks for your contribution. Indeed I had the older version of IDARC Manual and had tried to tweak such behavior through multi_lin element. Thoug...
- 07 Mar 2015, 20:43
- Forum: 03-Analytical/modelling capabilities
- Topic: Modeling shear critical column hysteresis
- Replies: 5
- Views: 4029
Re: Modeling shear critical column hysteresis
<t>Thank you really so much Rui for your discussion on this topic. <br/> <br/> Does anybody have any recommendation/hint regarding the modeling strategy and link element type to be used to model shear-dominant columns? I have been able to reproduce the pinched response, but attainment of the signifi...
- 06 Mar 2015, 18:49
- Forum: 03-Analytical/modelling capabilities
- Topic: Modeling shear critical column hysteresis
- Replies: 5
- Views: 4029
Modeling shear critical column hysteresis
<r>Hello,<br/> <br/> While I have been successful simulating accurate hysteresis behavior of FLEXURAL dominant RC columns with pretty much any type of confining device (e.g. stirrups, steel jacket, FRP jacket, welded stirrups, FRP+steel jacket) in SStruct, I have difficulty capturing the pinched pos...
- 10 Jan 2015, 07:49
- Forum: 03-Analytical/modelling capabilities
- Topic: capacity spectrum
- Replies: 1
- Views: 2198
Re: capacity spectrum
<r>SStruct does not do such function.<br/> However, you can use other resources, such as:<br/> <br/> "SELENA - SEismic Loss EstimatioN using a logic tree Approach"<br/> <br/> Such package is a comprehensive series of Matlab files and provide all the required functions. Link to the website:<br/> <br/...
- 25 Dec 2014, 19:33
- Forum: 02-Getting started with the modelling
- Topic: Stiffness Degradation from Takeda Hysteresis Plot
- Replies: 14
- Views: 13270
Re: Stiffness Degradation from Takeda Hysteresis Plot
Best of luck to you adeelfaisal and Merry Christmas.
Don't forget to share your research results in the forum regarding the use of the great SeismoStruct package!
Don't forget to share your research results in the forum regarding the use of the great SeismoStruct package!
- 24 Dec 2014, 19:29
- Forum: 02-Getting started with the modelling
- Topic: Stiffness Degradation from Takeda Hysteresis Plot
- Replies: 14
- Views: 13270
Re: Stiffness Degradation from Takeda Hysteresis Plot
<r>1- I guess your stiffness should be:<br/> <br/> K= {(Fmax+ve)+(Fmax-ve)}/{(Dmax+ve)+(Dmax-ve)}<br/> <br/> 2- As long as stiffness degradation, Takeda should work just fine I guess. I recall I recommended using the Sivaselvan and Reinhorn work, as you could explicitly specify the extent of strengt...
- 21 Dec 2014, 20:59
- Forum: 02-Getting started with the modelling
- Topic: Stiffness Degradation from Takeda Hysteresis Plot
- Replies: 14
- Views: 13270
Re: Stiffness Degradation from Takeda Hysteresis Plot
<r>Dear adeelfaisal,<br/> <br/> Huffte's recommendation is perfect. I have an additional comment, stiffness degradation is often reported as an average value at constant drift limits, for static cyclic column, joint, member tests.<br/> <br/> For clarity of what I mean, look at Figs. 10 & 11 of t...
- 16 Dec 2014, 17:06
- Forum: 02-Getting started with the modelling
- Topic: Accelerogram on Scaled Down Structure
- Replies: 2
- Views: 2746
Re: Accelerogram on Scaled Down Structure
<r>In shake table tests in addition to the scale factor of the prototype structure, low cycle fatigue is considered as well (they try to avoid it at first runs!). Based on the what I know, answer to your question is YES,the time history is reduced for a prototype structure, but not 1/6 exactly (they...
- 22 Nov 2014, 04:53
- Forum: 04-Unexpected behaviour/errors
- Topic: Common range check errors
- Replies: 12
- Views: 8072
Re: Common range check errors
Maximum tolerance is the program default (i.e., 1e20)