ASCE 7 Non-Structural Component Anchorage
ASCE 7 Non-Structural Component Anchorage
(OP)
Hey guys,
I'm looking into the anchorage of Ductwork, plumbing, cable trays, and conduit bracing into concrete. I understand the calculation of horizontal seismic force Fp. My question is in regards to the anchorage forces, and I see ASCE 7-05 section 13.4.2 refferences this. I'm wondering how to compute the design forces for the anchorage. I don't see in chapter 13 of ASCE 7 an equation for vertical seismic forces. However, I'm looking at "TOLCO Seismic Restraint Systems Guidlines" and the anchorage force computed utilizes the ASCE 7 eqn 12.4-4 of 0.2*Sds*Wp for the vertical forces. Do you combine the horizontal and vertical forces via ASCE eqn 12.4-1 E=Eh+-Ev and calculate the reaction force for anchorage? I see that Qe is specifically called out to be do to effects of V or Fp. This is a non-rigid hanging trapeze with tension rods, and braces that have stiffeners on them.
TOLCO Seismic Restraint Systems Guidlines:
http://www.cooperindustries.com/content/dam/public...
I'm looking into the anchorage of Ductwork, plumbing, cable trays, and conduit bracing into concrete. I understand the calculation of horizontal seismic force Fp. My question is in regards to the anchorage forces, and I see ASCE 7-05 section 13.4.2 refferences this. I'm wondering how to compute the design forces for the anchorage. I don't see in chapter 13 of ASCE 7 an equation for vertical seismic forces. However, I'm looking at "TOLCO Seismic Restraint Systems Guidlines" and the anchorage force computed utilizes the ASCE 7 eqn 12.4-4 of 0.2*Sds*Wp for the vertical forces. Do you combine the horizontal and vertical forces via ASCE eqn 12.4-1 E=Eh+-Ev and calculate the reaction force for anchorage? I see that Qe is specifically called out to be do to effects of V or Fp. This is a non-rigid hanging trapeze with tension rods, and braces that have stiffeners on them.
TOLCO Seismic Restraint Systems Guidlines:
http://www.cooperindustries.com/content/dam/public...






RE: ASCE 7 Non-Structural Component Anchorage
RE: ASCE 7 Non-Structural Component Anchorage
I looked, and looked, and finally found the eqn hidden in the text.
"the force Fp shall be assumed to act in any horizontal direction. In addition, the component
shall be designed for a concurrent vertical force ±0.2SDSWp."
RE: ASCE 7 Non-Structural Component Anchorage