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# Non-linear time history analysis using etabs

## Non-linear time history analysis using etabs

(OP)
What is the scale factor of non-linear time history analysis by EL-CENTRO ground motion data for the acceleration unit of mm/sec/sec in ETABS?
What are the factors affecting the base shear value for the non-linear time history analysis of a multi storey building (steel diagrid)?
How to assign wind load as equal joint forces instead of using wind pressure coefficients? In the case of Design Wind load on building as a whole is calculated and The wind load is divided over to all the nodes in the walls parallel to the wind direction
at height of the story. Horizontal concentrated node load is calculated by dividing the whole load with number of nodes.
The wind load acting on the tube structure is divided over the two walls parallel to the
wind direction, Horizontal Design Load at each node along X and Y.

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