Effects of Shear Reinforcement on the Large-Deflection Behavior of Reinforced Concrete Slabs

Most design guides and manuals for blast-resistant reinforced concrete structures stipulate the use of shear reinforcement in roof, floor, and wall slabs irrespective of shear stress levels. The primary purpose of the shear reinforcement is not to resist shear forces, but rather to improve performance in the large-deflection region by tying the two principal reinforcement mats together. Shear reinforcement used in blast-resistant slab design usually consists of either lacing bars or single-leg stirrups. Lacing bars are reinforcing bars that extend in the direction parallel to the principal reinforcement and are bent into a diagonal pattern between mats of principal reinforcement. The lacing bars enclose the transverse reinforcing bars (often referred to as temperature steel) which are placed external to the principal reinforcement for a laced slab. The cost of using lacing reinforcement is considerably greater than that of using single-leg stirrups due to the more complicated fabrication and installation procedures.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Civil Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Woodson, Stanley Clyde

Contributors dc:contributor

• Gamble, William L.

• Engineering, Civil

Identifier

(UMI)AAI9329202

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/72202