Title:
Traffic Vibration of a Bridge Deck and Hardening of Lightweight Concrete
Author(s):
J. F. W. Muller-Rochhotz
Publication:
Concrete International
Volume:
8
Issue:
11
Appears on pages(s):
23-26
Keywords:
DOI:
Date:
11/1/1986
Abstract:
The influence of induced traffic vibration on the compressive strength of freshly cast concrete was investigated. The tests were conducted for an existing steel arch bridge that was widened while still open to traffic by incorporating cantilever deck slabs. The vibration velocities of the bridge were measured by veloctiy and acceleration transducers. Signals were analyzed on frequency [5-12 Hz] and maximum values [30 mm/sec (1.18 in./sec)]. Laboratory tests were made using a specially designed lightweight concrete that was subjected to simulated traffic vibration. The compressive strength development of the vibrated specimen was unchanged.