Search the Community

Dears I argued with a senior Engineer about the punching shear check for shear wall; As far as I know : 1. The shear wall will attract high moments. 2. Also in the case of design itself, the controlling case from a combination that contains Earthquake will be the tension axial force not the compression (Please Verify or disagree!!!) 3. If I want to check punching for this shear wall I will take the moment at the Top of the shear wall (pier) which will be very high and I will take the axial force as the difference between the top of that wall and the bottom of the wall above so to achieve the axial force from that story only. 4. I found that I need to put shear reinforcement and some places it fails. 5. Now, the senior engineer told me no need for shear reinforcement in case of shear walls because of length of shear wall.!!!!!!! I said: Sir your case is right in Ultimate dead+Live combination not in case of earthquake because in this case there is high moments attracted by shear wall. He said : No tht moment in case of earthquake will not affect the slab , it will be taken by thear wall only !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 6. Please help me in this subject. I am sure the shear wall in earthquake will suffer from high moments which in case cause punching need to be counted for . Regards