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dear Prafullamalla

could you give me your email address??

Thanks kesavapraba and Prafullamalla I already tried to find proper analysis parameters I combined the following command Constraint : plain / transformation / penalty (1e16) System : bandgeneral / umfpack Algorithm : newton / krylovnewton / modifiednewton So, penalty / umfpack / kryovnewton was the ...

Dear kesavapraba the results of other algorithms likes newton, ModifiedNewton were worse (I got more and same error massages) you said " In that case you can try any close alternate material with smooth transition curves." but the hysteretic loop of members could not change because I follo...

hi Prafullamalla the analysis said that.. but pushover curve was so strange and value of base shear was lower than not retrofited model. pushover curve was similar to below 　　　　　.. 　　　　.　　. 　　　.　　 　　. 　. .　　　　　　.............................. the maximum value of (base shear / total weight) = not ret...

thank you for your reply below is the pushover analysis script # displacement parameters set IDctrlNode 17; # node where disp is read for disp control set IDctrlDOF 1; # degree of freedom read for disp control (1 = x displacement) set HBuilding 18000 set Dincr [expr 1]; # displacement increment set ...

Hi, I bulit up 2D RC frame (6 story 6 bay) using hysteretic loop the hysteretic loop's parameters were derived from fema 356 (chapter.6, table 6-7~ table 6-8) And I want to compare a pushover curve of non retrifited model with a pushover curve of retrifited model The analysis of non retrofited model...

hi i built up a 2D RC model I used a zerolength element to assign the hysteretic loop of column checked the output file, a force of the zerolength element was 6 columns, I thought 3columns is axial force, shear force and moment force and the other was just the opposite sign ex> 10 20 500 -10 -20 -50...

dear fmk I made the hinge using Hysteretic command and zerolength element ex> uniaxialMaterial Hysteretic 111051 58931336.843402 0.000160 176794010.530206 0.002000 17679401.053021 0.146429 -58931336.843402 -0.000160 -176794010.530206 -0.002000 -17679401.053021 -0.146429 1 1 0 0 0 uniaxialMaterial Hy...

hi my model is 3D RC model and I used zerolength commend at the end of element to effect slab, I used rigidDiaphragm commend but the analysis time was too long I think rigidDiaphragm commend was not good for the lumped plasticity model so I used the truss (section Elastic 1 2e11 2e11 2e11 2e11 2e11 ...

hi. I made a 3D RC model (3 story, x dir - 36bay, y dir - 2bay) using lumped plasticity model so, the ends of the all element have zerolength inputed the hysteretic loop (deformation - force) some element's hysteretic loop are strength degradation loop my problem is the pushover anlysis time is too ...

Hi

I wonder the truss deformation's unit

is it rad??

thank you for the reply

so is it right "element zeroLength 2 20 2 " ??

( node 20 is zerolength node of top of column and a node 2 is a nodal point connecting a column and a beam)

Hi~ I wandering the zerolength direction for example 0 @ ------------------@ 0 (nodeN is 2 --------- 3) @ | | | @ 0 (nodeN is 1) <- this is ground @ is zerolength, 0 is master node # master node node 1 0 0 0 node 2 0 2 0 node 3 2 2 0 # zerolength node node 10 0 0 0 node 20 0 2 0 node 21 0 2 0 node 2...

Hi, I built up 3D rc model (x dir : 36bays, y dir : 2bays, 3 stories) and hysteretic loop was introduced the end of columns and beams (lumped plasticity model) the analysis method is nonlinear static analysis (pushover to x dir) I used the rigidDiaphrame commend ( I read the ex7_3story,3bayX,3bayZ f...

thank you for a reply

could you explain how can I check the global equi??

Is it sum of all node on the same floor??