Hi,
I am new in Abaqus. I am trying to simulate the crack propagation using cohesive element. I do the simple test with model having 2 element plus a layer made by cohesive element in the middle subjected to tension load. I expect to see "virtually" the crack at the cohesive element layer...
Hi all,
Could someone please tell me what people normally do to export internal forces from monolithic RC C shape shear walls using Etabs that will be used for sectional analysis? Will you define 3 piers for C shape (web + 2 flanges) or only one pier? If there is only one pier, how do you...
Dear all,
I need to seismic rehabilitation for an existing reinforced concrete shear wall in the matter of shear capacity. Could you please suggest a a solution for that? Adding more shear wall is not possible in my case, so should I use steel sheet, fibre reinforced polymer...or ??
I am...
Dear all,
I am doing static equivalent force procedure for my shear wall building (no column is considered) in Etabs, but only for 2D analysis. I conduct 2 studied cases: one without eccentricity and the other with eccentricity of 0.1. I use the same response spectra for two cases. The...
Hi,
I want to consider P-delta effect in my shear wall building. I want all lateral force is resisted only by the shear walls, so I release rotational degree slab column connection. I do the modal analysis, and Etabs inform me that there are negative stiffness in my columns.
Could someone...
Hi,
Could anyone please explain to me which degree of freedom that I should constraint for a rigid floor using shell and membrane elements?. I mean that, for example, I have a rigid diaphragm floor using shell element, and is that similar if I constraint this floor in both horizontal (H1,H2)...
Hi all,
I have an asymmetrical building with two cores. I want to consider accidental torsion in my model. I use the option to input eccentricity ratio in defining response spectrum case data in Etabs. I understand that, if I following this, I will consider accidental torsion for different...
Hi everybody,
I am designing a shear wall building with 8 storey above ground level, and 2 story underground level. There are 2 cores in the building. The first core finishes at basement level 1, the second core finishes at basement level 2.
My questions is where I should take the value...
Hi all,
Could anyone explain to me why we need to avoid having a building where the torsional vibration is mode 1 or 2? In case that is unavoidable, what should we do?
Thanks
Lisu
Hi all,
I have a building with flat slab, and the columns are not located on the grid-lines. I use shell element for slab. I wonder about compatibility between the columns and the slabs, Does Etabs automatically generate auto line constraints between slabs and columns?
Thanks
Lisu
Hi,
I have a reinforced concrete shear wall building. I am trying to model it in Etabs (attached file). The lateral load is supposed to resist by only the shear walls, thus I pin the columns at base.Now, I just apply a vertical load to the building, then I look at the pier forces (by looking...
Hi there,
1) Could some one tell me how I can define sequence of load applying to the building in Etabs 3D? I ask that question because I am familiar with another software like Perform 3D that I can define to apply gravity load firstly then seismic load. In Etabs, will it follow that...
Hi there,
1/Could someone tell me what are the units of V, f'c, bw and lw in Table 6-18: modelling parameters and numerical acceptance criteria for nonlinear procedures reinforced concrete shear walls and associated components controlled by flexure.
Sorry for this stupid question...
Hi all,
I have questions regarding how to develop a numerical modelling of a reinforced concrete building (shear walls is the only seismic force resisting system) using Etabs 3D for seismic analysis. Actually the question is regardless the software that we use, but I am using etabs so I post...
