support reaction for concrete design
Dear members,Since our model is a dynamic one, we have to give the primary support reaction to the concrete designers for their design. Since the dynamic support reaction will always be positive, how...
View ArticleAPI-2A-LRFD in staad pro
Can I carry out Tubular Joint check using API-LRFD in staad? How can I specify this in staad.
View ArticleRE: Ram SS - Modulus of Elasticity according to AS3600
Please, see attached screenshot from AS3600-2009. Currently Ram SS underestimates E value for concrete.
View ArticleRE: Ram SS - Modulus of Elasticity according to AS3600
If I do the check of the properties of columns/walls the Ec value the table specifies is - CODE. If It is possible to specify f'c of concrete in the properties input then how does the software "knows"...
View ArticleRE: Live Load reduction for 2-way decks in RAM SS
Regretfully, you will need to calculate the appropriate LL reduction at each level outside the program and manually assign the percentage to each column. As you point out, the code maximum LL reduction...
View ArticleRE: WELD COEFFICIENT IN RAM CONNECTION.
Based the design equation and reference to Tables 8-4 to 9-11, it appears that you are designing the connection with the AISC 360 LRFD design code. Shear plate connections of this type are designed...
View ArticleWELD COEFFICIENT IN RAM CONNECTION.
i AM TRYING TO DESIGN A SIMPLE SHEAR PLATE USING RAM CONNECTION, AND WEHN I WAS LOOKING AT THE REPORT I COUDNT FIGYRE IUT HOW DID THE SOFTWARE CALCULATE THE VALUE OF THE WELD COEFFICIENT, WHEN I DID...
View ArticleRE: Ram SS - Modulus of Elasticity according to AS3600
Thank you. I did not have a copy of AS 3600-2009, but that certainly clarifies the issue. Yes, there is a problem in the calculation of E in RAM Structural System. The calculation in RAM Concept is...
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RE: Ram SS - Modulus of Elasticity according to AS3600
I should add that RAM Modeler allows for the Elastic Modulus to be specified by the user instead of calculated by the program when defining beams, columns, and walls. This should be used as a...
View ArticleRE: RAM Connection - MEPBS demand calculation
Please share the model with us. This link provides instructions for using our Secure File Upload. After uploading the file, please reply with the file name.
View ArticleRE: RAM Connection - MEPBS demand calculation
The shear yielding demand is based on Equation 3.12 in AISC Design Guide 4 and is half of the flange force. The flange force is calculated as Mu/(d – tf) +/- P/2.The flexural yielding check is based on...
View ArticleRE: RAM Connection - MEPBS demand calculation
Yes, thank you. I see it now and agree the flexural yielding demand should be calculated as Mu + (1/2)*P*(d - tf).I'm wondering if since this is the flush condition (i.e. no bolts outside) perhaps the...
View ArticleRAM Connection - MEPBS demand calculation
I'm working on a Moment End Plate Beam Splice connection. Result output file contains some calculated demand values that I can't determine where they came from (see boxed values on attached pdf)....
View ArticleRE: Modelling eccentricity of columns with cantilever beams in RAM SS
You can make the beams and columns lateral and then assign the desired fixity and establish the column unbalanced moment based on the RAM Frame finite element analysis.Otherwise I guess you could run a...
View ArticleModelling eccentricity of columns with cantilever beams in RAM SS
We have a situation where an existing building utilizes platform-framed construction and several columns have beams with 10'-0" cantilevers which run over top of them. We do not feel it's conservative...
View ArticleRE: Warning for Secondary & Primary beam sizes
Thankx Seth,It would be better if we get the warnings for both. same depth as well as shallow.
View Article[STAAD Select Series 5]-Floor Diaphragm
I have a doubt on the Floor Diaphragm in STAAD Select Series 5.1. Seismic Load generation is for only 02 cases. More than 2, it will generated for 1st case and last case only. 2. For load case with...
View ArticleRE: Live Load reduction for 2-way decks in RAM SS
Thanks, kjgullerudI am happy to assign LLR manually but the point is if I have only a typical floor in model space I can only assign one LLR value per column for all the levels while I need it to be...
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