column deflection

RE: column deflection

John C — Wed, 27 Apr 2022 14:51:08 GMT

Thanks for your answer

RE: column deflection

John C — Wed, 27 Apr 2022 14:50:57 GMT

Thanks for the clarification

RE: column deflection

V L Hari Naidu — Wed, 27 Apr 2022 11:40:26 GMT

By default any member has 2- Nodes, and the nodes are the part of the member. Thus the displacement of the nodes either translation or rotation is referring the member only. There is also another option in staad i.e section displacement . The section displacement values gives the displacement values of the member i.e column in this case ,between the top and bottom nodes. You can also insert a node midway between the column and check the displacement of the node. But Short columns or long columns fail due to buckling and staad is designing the column according to the Euler's Equation. The allowable limit of sway for wind load is H/500 as per IS 456 , for seismic loads you may refer IS 1893

RE: column deflection

Abhisek M — Wed, 27 Apr 2022 07:13:30 GMT

Deflection check using DFF, DJ1 and DJ2 is for the horizontal members only. It is not recommended for vertical members. For vertical members you need to check the deflection manually with the help of displacement values.

To know more about how deflection is calculated refer help file.

file:///C:/Program%20Files/Bentley/Engineering/STAAD.Pro%20CONNECT%20Edition/Help/GUID-A01D284B-0114-4F2E-852F-1856C7F8C44E.html