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Recent content by jmramos

  1. jmramos

    questions about ETABS

    questions about ETABS. 1. How to introduce two beams that are offset from the plane of the column section, i.e. the beams on either side of the section do not share the same point of the column section. How to create a link between these two points to simulate the support of the beams to the...
  2. jmramos

    two questions about ETABS

    Hello colleagues, I have two questions to resolve in ETABS. 1. How to introduce two beams that are offset from the plane of the column section, i.e. the beams on either side of the section do not share the same point of the column section. How to create a link between these two points to...
  3. jmramos

    No rebar details on some wall stack in Etabs

    Hello fellows, The issue is that I can't see rebar detailing on some walls stacks, although on others they are represented without any problem. In particular, the detail of the retaining wall in the basement is shown without any problem, but not the rebar detailing of the walls of the elevator...
  4. jmramos

    Problem with writing shells in ETABS

    Hello guys, After creating the building model, I checked the model and did not get any errors. However, when trying to create the model alive in ETABS, in the connections between the floors and the walls of the elevator shaft, stiff elements are automatically generated by the program at all the...
  5. jmramos

    modeling shell elements in SAP2000

    hello colleagues, Let's look at the case of a roof for a residential building in the shape of a pyramid trunk, with metal beams on the contour of the faces in horizontal planes at successive levels in height and beam elements in the plane of the faces (the faces are defined as if they were a...
  6. jmramos

    Create constraints in ETABS

    To create this type of body constraint, in ETABS it is relatively simple to define a flat slab containing the points located on its perimeter and assign the diaphragm behavior. The center of mass calculation is automatic. In my case, I did not intend to define a slab, but to connect the points...
  7. jmramos

    Create constraints in ETABS

    hello fellows, in ETABS program, how to create a body constraint between points on the perimeter of a flat quadrangular surface and a point in the center of mass of that surface, without resorting to modeling a slab and, therefore, ignoring the automatic calculation of the same point from a...
  8. jmramos

    Modal Analysis According to EC 8

    once again, my thanks for the helpful collaboration. Best regards
  9. jmramos

    Modal Analysis According to EC 8

    Once again, my sincere thanks. I understood your explanations very well. Sorry for the audacity (or annoyance), but do you know of any valuable books that you can recommend, dedicated to mathematical expressions for calculating the spring coefficients? Cordial greetings
  10. jmramos

    Modal Analysis According to EC 8

    Thank you HTURKAK for your valuable contribution. i understood the explanation YOU gave me, but I wanted to put another one. Performing the structure modeling for example, in Sap2000, how is it possible to introduce two behavior coefficients in the same analysis, for the lower and upper portion?
  11. jmramos

    Modal Analysis According to EC 8

    I have a doubt about the interpretation of clause 4.3.3.3 of EC 8, when it establishes that the sum of the effective modal mass for the modes to be considered in the modal analysis, must represent at least 90% of the total mass of the structure. I suppose that the mass of the structure referred...
  12. jmramos

    joint constraint in ETABS

    Hello wrxsti, The sketch shown in the video is the one that corresponds to my situation. Although the video is not spoken in English, I think I understand the explanation, about providing rigid links between the nodes. Thank you for your reply.
  13. jmramos

    joint constraint in ETABS

    Hello fellows, In Etabs, how can we constraint an end joint of a beam offseted from the plan where lies a column to the top centroid joint of these column, so that the forces at the end of the beam are correctly transferred to the centroidal axis of the column? Thanks in advance
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