RE: *** WARNING *** DYNAMIC MASSES IN GLOBAL X, Y AND Z DIRECTIONS ARE NOT...
And what about the warningS *** Note: ALL MASS RELATED WARNINGS, IF ANY, WILL BE WRITTEN IN _MASSEURO.TXT FILE. *** WARNING *** DYNAMIC MASSES IN GLOBAL X, Y AND Z DIRECTIONS ARE NOT SAME. WARNING...
View ArticleRE: *** WARNING *** DYNAMIC MASSES IN GLOBAL X, Y AND Z DIRECTIONS ARE NOT...
Yes, the total summation of mass participation factor of all the considered modes should exceed 90% of the total seismic mass.. Your required design lateral force/base shear is along the horizontal...
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RE: *** WARNING *** DYNAMIC MASSES IN GLOBAL X, Y AND Z DIRECTIONS ARE NOT...
For the first load case, the direction selected was along X axis and hence the base shear is reported as "0". If you check the second load case, then you could see that some non zero base shear is...
View ArticleRE: *** WARNING *** DYNAMIC MASSES IN GLOBAL X, Y AND Z DIRECTIONS ARE NOT...
Dear Vishal, Regarding your first query No the cumulative mass participation of all the modes considered in analysis should be more than 90%. As you achieved more than 90% mass participation in both X...
View ArticleRE: How to convert stress results from FEM Model for getting design forces...
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View ArticleRE: introduction of expansion joint and bearings
UNIT METER KNJOINT COORDINATES1 1 8 0; 2 2 8 0; 6 6 8 0; 7 7 8 0; 8 2 3 0; 9 6 3 0; 10 1 8 0; 11 7 8 0;12 1 8 0; 13 7 8 0; 14 1 8 -10; 15 2 8 -10; 16 6 8 -10; 17 7 8 -10; 18 2 3 -10;19 6 3 -10; 20 1 8...
View Articleintroduction of expansion joint and bearings
i am trying to design a bridge. i am having the following issues: to introduce the expansion jointsto introduce the bearingsto model the abutmentplease any useful information would be appreciated....
View ArticleRE: another parametric model question
Hi sye Please would you list the sequece that you used to create the mesh, as I requested within previous message. This will be immensly useful to me from parametric modelling point of view. Thanks.
View Articleanother parametric model question
HiPlease see another attached mdoel. I created a parametric model with mesh intensity of 0.1m Ok. When I try creating a Coarser mesh (say 0.5m) for the lower trapeziod which shares a mid line with the...
View ArticleRE: How to convert stress results from FEM Model for getting design forces...
Hello, In my opinion you can use a option in post-processing as given below: Post-processing > Plates > Results along line > Cut by a line or Plane > Draw a line or plane and choose...
View ArticleRE: How to convert stress results from FEM Model for getting design forces...
Hi Firstly, I believe if you combine plate and beam elements in our structure as you have illustrated in the staad file, there would be compatibility problems in the interacting node between the two...
View ArticleRE: Beam and Plate Element Compatibility
Can you share your model and cite the discrepancy possibly by some illustration?
View ArticleRE: Beam and Plate Element Compatibility
(Please visit the site to view this file)Here is a diagram of the shear force along the length of the beam according to the output in STAAD. How might I attach a copy of my model? It is rather large as...
View ArticleRE: Beam and Plate Element Compatibility
You can attach only the .std file.. Also you can paste the Staad input commands here.
View ArticleRE: Beam and Plate Element Compatibility
(Please visit the site to view this file)Here is one of my models with STAAD. In particular, I was looking at the first main rafter, which corresponds to beam elements 1-69. In the output, note the...
View ArticleRE: How to convert stress results from FEM Model for getting design forces...
I would suggest that you model the girders using beam elements and model the concrete deck using plates as you have done. You can draw the girder cross section in Freesketch module of Section Wizard...
View ArticleHow to convert stress results from FEM Model for getting design forces for...
Dear allI have furnished an FEM model for simple supported composite steel tub girder bridge for 60m curved span using shell and beam elements for steel and concrete deck. I am facing difficulty to get...
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RE: Beam and Plate Element Compatibility
The SFD that you can see is like the one as shown below.These saw-tooth type SFD profile is due to the very nature of the arch profile modeled by the series of straight line segments.The sudden drop...
View ArticleRE: Beam and Plate Element Compatibility
An important thing to consider here is that the plates connected to these rafters are going to pick up out of plane shears too. So at every node where you have plates connected to the beam, the total...
View ArticleBeam and Plate Element Compatibility
Hello All,I am modeling a dome roof for an aboveground storage tank. The model consists (very generally) of arching beams pinned at both ends with a plate connected to the top flange (both bracing and...
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