Title: Effects of Surface Reinforcement on Bearing Capacity of Concrete with Anchor Bolts

Author(s): Martin Nilsson, Ulf Ohlsson, Lennart Elfgren

Publication: NCR

Volume: 44

Issue: 11

Appears on pages(s): 161-174

Keywords: Fasteners, Load capacity, Test, Reinforcement

DOI:

Date: 12/15/2011

Abstract:
66 tests of the influence of surface reinforcement on the tensile load capacity of cast-in fasteners have been carried through. In the tests threaded rods ∅30 mm with a ∅45 mm nut at the end were cast-in centrically in concrete slabs (1.2 m × 1.2 m × 0.3 m up to 2.2 m × 2.2 m × 0.6 m). The amount of surface reinforcement was varied from 0% up to about 1.2%. There is a considerable increase in the load capacity with surface reinforcement present. The increase depends on the geometry and the amount and placement of the reinforcement.