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Dear Silvia:

I want to perform dynamic analysis of a 3D RC building frame with the corotational geometric transformation. Does this transformation consider uniformly distributed element loads like self weight of a frame member.

Thanks.

Dear Frank:

I want to perform dynamic analysis of a 3D RC building frame with the corotational geometric transformation. Does this transformation consider uniformly distributed element loads like self weight of a frame member.

Thanks.

Dear Silvia: I want to use uniaxial elastic material to aggregate torsion into the section in a 3D model. I don't want to use the default value. If I want to use the actual value calculated from each member (columns and beams), what is the value I should use for the tangent. Is it shear modulus G or...

Dear Dr. silvia:

I have a small question about units of the curvature. If I define my basic length unit as mm, what will be the units of curvature given by the recorder section deformation output. Is it (rad/mm) or (1/mm).

Thanks in advance

Dear Dr. Silvia:

I am performing a dynamic analysis of a 2-D frame. How can I save the deformed shape.
When I use your new script to view the deformed shape, I can see the deformed shape but cannot save it. It disappears at the end of analysis.

Thanks a lot in advance.

Dear Dr. Silvia: I am performing a nonlinear static lateral load analysis. The structure is 2D RC frame and a point load is applied laterally at the mid height of a first floor column. I did displacement control lateral load analysis (like pushover). I could plot the force vs. displcement relation. ...

Dear Dr. Silvia

I cannot use eleload command for the elements where corotational transfomation is specified.
However, I can apply the uniform load as point loads at the ends of the element.
Is there any better way?

Thank you in advance

Dear Dr. Frank:

I cannot use eleload command for the elements where corotational transfomation is specified.
However, I can apply the uniform load as point loads at the ends of the element.
Is there any better way?

Thank you.

I am very happy to hear that Frank is working on it and thanks a lot.

I hope it will be very useful for the application of pressure or wave loadings (with variable load factors) and I am waiting for that capability in OpenSees.

Thanks

Dear Silvia:

Is it possible in OpenSees?

Thank you in advance.

Dear Silvia:

Thanks again for your prompt reply.

It is a transient analysis. Actually I want to use variable transient analysis to avoid convergency issues due to large deformations at the impact region.

Thanks a lot in advance.

Dear Silvia: Thank you very much for your prompt reply. It is not a constant load. Actually I want to simulate impact effects of a RC column. So, I just want to apply a force-time history (i.e., force vs. time relationship which is defined in a separate file) on some elements as element loads. So ho...

Dear Silvia: I want to apply a time dependent lateral load as a uniform load on a column. I could do only if it is a point load acting on a node as follows: set IMfile "Imload.txt" ; # load time history set IMfact 1; # load scaling factor set dt 0.005 set TimeSeries "Series -dt $dt -f...

Dear Frank,

It worked .
I appreciate you assistance .

Thanks.

Frank, Thanks! It worked :) . However, I am getting 8 warnings as follows. Compiling... VC2005errno.cpp tclMain.cpp f:\research\computation (phd)\opensees1.7.5\src\tcl\tclmain.cpp(358) : warning C4996: 'strcpy' was declared deprecated d:\program files\microsoft visual studio 8\vc\include\string.h(73...