Search found 40 matches

by xgx
Wed Feb 21, 2024 4:31 am
Forum: Get Started Discussion
Topic: how to parameterize duration and numIncr when using openseesMP to paramerize model for running parametric analyses
Replies: 1
Views: 919

how to parameterize duration and numIncr when using openseesMP to paramerize model for running parametric analyses

Dear STKO team, when I try to use openseesMP to parameterize my model for running parametric analysis, there is a problem that troubles me. How to parameterize the duration of ground motion and the numIncr, because there are so many timeseries (which describe different ground motion) and the ...
by xgx
Tue Jan 09, 2024 12:59 pm
Forum: Get Started Discussion
Topic: the recommended values for nct, ncc and smoothingAngle when use ASDconcrete to model masonry material.
Replies: 1
Views: 1390

the recommended values for nct, ncc and smoothingAngle when use ASDconcrete to model masonry material.

Dear STKO team, are there any recommended values for nct, ncc and smoothingAngle when I try to model masonry structures by macroscopic modeling method.
by xgx
Tue Dec 05, 2023 10:18 am
Forum: Get Started Discussion
Topic: how to get parameters of pinching4 material Perpendicular to pier or spandrel
Replies: 5
Views: 3932

Re: how to get parameters of pinching4 material Perpendicular to pier or spandrel


Hello, I presume you are attempting to represent the out-of-plane behavior by referencing direction 2 in the enclosed figure. Nevertheless, the equivalent frame model is constrained to capturing the in-plane response and does not account for the out-of-plane response. One of the foundational ...
by xgx
Tue Dec 05, 2023 3:46 am
Forum: Get Started Discussion
Topic: how to get parameters of pinching4 material Perpendicular to pier or spandrel
Replies: 5
Views: 3932

Re: how to get parameters of pinching4 material Perpendicular to pier or spandrel


Hi. You can look at the following literature. Please let us know if you need further assistance related to STKO.
Beyer, Katrin, and Sujith Mangalathu. "Review of strength models for masonry spandrels." Bulletin of Earthquake Engineering 11 (2013): 521-542.

Dear kesavapraba, thanks for your reply ...
by xgx
Mon Dec 04, 2023 3:25 am
Forum: Get Started Discussion
Topic: how to get parameters of pinching4 material Perpendicular to pier or spandrel
Replies: 5
Views: 3932

how to get parameters of pinching4 material Perpendicular to pier or spandrel

Dear STKO team:
After watching the tutorial on your official website, I found that the masonry modeling in the tutorial is a two-dimensional equivalent framework modeling. So, when I want to perform three-dimensional equivalent framework modeling, how can I determine the material parameters that ...
by xgx
Wed Nov 15, 2023 7:27 am
Forum: Get Started Discussion
Topic: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060
Replies: 11
Views: 8503

Re: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060




Hi, You might be interested in the following articles. However, please ensure using appropriate material models for capturing the shear responses of piers.

Quagliarini, E., G. Maracchini, and F. Clementi. "Uses and limits of the Equivalent Frame Model on existing unreinforced masonry ...
by xgx
Wed Nov 15, 2023 12:52 am
Forum: Get Started Discussion
Topic: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060
Replies: 11
Views: 8503

Re: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060



Hi, You might be interested in the following articles. However, please ensure using appropriate material models for capturing the shear responses of piers.

Quagliarini, E., G. Maracchini, and F. Clementi. "Uses and limits of the Equivalent Frame Model on existing unreinforced masonry buildings ...
by xgx
Wed Nov 15, 2023 12:25 am
Forum: Get Started Discussion
Topic: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060
Replies: 11
Views: 8503

Re: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060


Hi, You might be interested in the following articles. However, please ensure using appropriate material models for capturing the shear responses of piers.

Quagliarini, E., G. Maracchini, and F. Clementi. "Uses and limits of the Equivalent Frame Model on existing unreinforced masonry buildings ...
by xgx
Tue Nov 14, 2023 2:02 pm
Forum: Get Started Discussion
Topic: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060
Replies: 11
Views: 8503

Re: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060


Hi, there seems to be some issues with spandrel connectivity with the rest of the elements - Spandrel deforms a lot even before starting cyclic loading as seen in the attached figure below. Can you recheck how you discretized the wall and connection between piers and spandrels?

I would also ...
by xgx
Tue Nov 14, 2023 12:10 pm
Forum: Get Started Discussion
Topic: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060
Replies: 11
Views: 8503

Re: MpI Channel:;recvVectorO- incorrectnumber of entries for Vector received: 1 expected: 3060

kesavapraba wrote:
Mon Nov 13, 2023 10:18 pm
Hi, Can you please share a minimal model that shows this issue? We will look into that error.
Dear STKO team, I find I defined wrong parameters for pinching4 material. The model can run normally after inputting right parameters. But the hysteretic curve as following picture is still wrong.