floor modelling
Posted: 22 Oct 2010, 14:32
Dear Seismostruct,
I have a problem with the eigenvalue analysis. I modeled a frame for experiments (made of aluminum 60x30x90cm high) in a span of three floors. I modeled a constrain to simulate the action of the diaphram plate of each floor and I put the masses concentrated at the four nodes of intersection between floor and pillars. By comparing the frequencies with those calculated with other computer codes, which give the same results, I got completely different results in Seismo ... How can I model the behavior of the aluminum plate? I also tried by placing the link constraints, or link element (together with diaphram) trying to manipulate the penalty function. What is the error? What is the solution?
Thanks
I have a problem with the eigenvalue analysis. I modeled a frame for experiments (made of aluminum 60x30x90cm high) in a span of three floors. I modeled a constrain to simulate the action of the diaphram plate of each floor and I put the masses concentrated at the four nodes of intersection between floor and pillars. By comparing the frequencies with those calculated with other computer codes, which give the same results, I got completely different results in Seismo ... How can I model the behavior of the aluminum plate? I also tried by placing the link constraints, or link element (together with diaphram) trying to manipulate the penalty function. What is the error? What is the solution?
Thanks