Title: Stud Rail Systems as Shear Reinforcement in Beams and One-Way Slabs
Author(s): Mahmoodreza Soltani, Shreyas Indurkar, and Brandon E. Ross
Publication: Structural Journal
Appears on pages(s): 587-594
Keywords: beams; headed studs; one-way shear; reinforcement; shear; slabs; stirrups; stud rail systems
Stud rails systems (SRSs) are prefabricated reinforcement elements with headed steel studs welded to a steel base rail. SRSs can affect construction efficiency and can be used in members that are too small for hooked bars. Provisions for using SRSs in slabs and footings were introduced in ACI 318-08; however, there are currently no provisions in ACI 318 for using SRSs as shear reinforcement in one-way members. Accordingly, an experimental program was conducted to evaluate SRSs as shear reinforcement in one-way beams and slabs. Variables in the program included specimen dimensions, shear span-depth ratio, and type and spacing of shear reinforcement. Details of the program are presented, and experimental results are compared with provisions from ACI 318 to evaluate their applicability to one-way members reinforced with SRS. Experimental results from other researchers are also included in the code comparison.