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Hi !!!!

Can any body tell me how I can model an Infill frame? I have tried using a diagonal truss element with an uniaxial material specified for the behavior of the infill wall but it is not following the envelope of the material.n There is another way to achieve that? Can somebody help me?

Thanks Silvia. It works !!!!!!

I change the sign of the displacement history and gave me the results that I was specting.

Hi: I want to perform a moment-curvature analysis of a T beam using the scrip available in opensees. For example, in Section Builder it is posible to specify the angle of the section. If one use 0 degree, its means that the bottom rebars are in tension and the top rebars are in compression. If one s...

Hi: I am using the beamwithhinge element for modeling the beams and columns for a RC frame. The section that I am assigning in the plastic hinge length for the columns (for example) is the same. An example of the input is as follows: element beamWithHinges 1 1 4 $ColSecTagA $phlc $ColSecTagA $phlc $...

Hi !!! I have a question regarding the section orientation in a 2D problem. The orientation depends in how I create the section? for example, I have a rectangular column of 5" of base and 9" of height. If I want to put the section such form that the height of the column be at the same dire...

I have to do this in the analyze.static.cycle.tcl script? I change the displacement vector including positive and negative values like this: set iDmax "0.004 -0.005 0.011 -0.015 0.0151 -0.017 0.0221 -0.025 0.0294 -0.03"; # vector of displacement-cycle peaks, in terms of storey drift ratio ...

Hi !!!

I want to do static cyclic analysis but with different displacement history in both direction. Is this posible? The Analyze.Static.Cycle.tcl only do cyclic analysis for the same vector of displacement for both directions. Please if some body can help me, I will appreciate it.

I need to know how to model a unsymmetric section (L shape for example) in opensees (all sections in the examples are symmetric). 2) Why all sections in the examples are rotated such Y axis is vertical and Z axis is horizontal?

Hi:

I want to know if somebody can give me an example of the use of the joint offset option of the linear transformation command. I am having problems to understand it.

Thanks..

Dear all: I am trying to model a Beam-Column Joint, using rigid links. First I modeled the structure with beam and columns elements and its works without problems. When I used rigid links an error message appears. I am including part of the input file of the problem with the message error. # tag x y...

Hi:

What is the difference between the nonlinear beam-column element and the displacement-based- beam-column element? Which is better?

Hi:

I want to know is there is a way to check grafically, the fiber section that is created during the input process. That is in case that a mistake is introduced during the process.

Hi:
Are the Takeda rules availables in Opensees?

Hi: I am a new user of Opensees. I have been checking the examples in the manual and I can not get the plot that appears in the case of example 1b. Is this graph correct? I have plotted the displacement vs the global force in the X direction for the column element and I get values that are different...

Hi Silvia:

Do you have an example script of zero length element?