thread507-315447
We have 3 1/2" LWC on 3" composite metal deck (total 6 1/2" thick), spans 11'-0" , total load 110 psf. The owner wants to install 1/2" plastic pipes at 9" o.c. in the structural slab. The pipes run parallel and perp. to deck in a serpentine fashion.
ACI 302 - Guide for...
ACI 318-11, section 12.14.2.1 does not permit lap splices for bars larger than #11. The commentary says it's because of lack of experimental data on lap splices for #14 and #18 bars.
We are designing a pile supported mat, 5'-6" thick with a clear cover of 9" to the bottom bars.
Are splices for...
Ref ACI 318-05. The confining reinforcement requirements depend on the type of behavior of the member, namely flexural and compression. A frame member (beam-column) typically is subjected to both - bending and axial load. I am not aware of any criterion in the Chapters 1 thru' 15 which...
Last week I sent an email to Dr. Michael O'Rourke requesting him to suggest some guidelines for accounting for impact on the lower roofs due to drifting and sliding of snow from the higher roofs. Dr. O'Rourke is chair of the ASCE 7 Task Committee on Snow & Rain Loads. I am posting his reply here...
thread726-295343
This is in reference to the original post by dcStrucEng(structural) dated March 26, 2011 --
Item # 1 - Shear wall as LFRS - Eff. Length factor for columns -
Sway classification of buildings does not depend on the type of LFRS. A story in a given structure is considered nonsway...
