Ganesh Persaud
Structural
- Nov 21, 2018
- 94
Hello everyone,
From asce7-05 guidelines and aisc341-05, Is this the correct interpretation as it regards to redundancy and overstrength factors being incorporated into load combinations.
Regarding the use of the redundancy factor:
When it is determined that ρ = 1.3 in a given direction, the factor of 1.3 applies only to load combinations where seismic forces are applied in that direction. Also, the load combination with ρ = 1.3 is used for all components and connections developing seismic forces when the load is applied in that direction. This includes elements and component from the bottom to the top of the structure and is not limited to those elements and components in levels resisting more than 35% of the seismic base shear.
Regarding the use of the Overstrength factors:
The overstrength factor is used only for the connection design in both directions.
Please advice me on this.
Thank you.
From asce7-05 guidelines and aisc341-05, Is this the correct interpretation as it regards to redundancy and overstrength factors being incorporated into load combinations.
Regarding the use of the redundancy factor:
When it is determined that ρ = 1.3 in a given direction, the factor of 1.3 applies only to load combinations where seismic forces are applied in that direction. Also, the load combination with ρ = 1.3 is used for all components and connections developing seismic forces when the load is applied in that direction. This includes elements and component from the bottom to the top of the structure and is not limited to those elements and components in levels resisting more than 35% of the seismic base shear.
Regarding the use of the Overstrength factors:
The overstrength factor is used only for the connection design in both directions.
Please advice me on this.
Thank you.
