Cause Analysis and Treatment Measure on Cracks in New Reinforced Concrete Restricted by Old Web Concrete
LIN Bao - zhu
DOI:10.11835/j.issn.1674-4764.2006.05.015
Received May 15, 2006,Revised May 15, 2006, Accepted , Available online July 01, 2015
Volume ,2006,Pages 63-
- Abstract
In this paper, the cause analysis about cracks on the new concrete web poured in multi -span continuous box -girder of a main bridge was introduced. This bridge is a prestressed concrete one with variable cross sections and an 80 -meter main span. When casting reinforced concrete in large volume in box girder during vehicle transport service, the shrinkage cracks in cast -in place reinforced web concrete were formed due to the restriction of old web concrete. Then, the control measure taken on these cracks is discussed.