Shrinkage Induced Tension in Reinforced Concrete Struts for Retaining Large-Scale Excavation

Abstract:

Article Preview

Shrinkage induced tensile force was observed in a 264m long reinforced concrete struts through field monitoring during a foundation excavation in Shanghai, China. In the construction period, shrinkage occurring in latter cast concrete induces a tensile force to the former part of long Reinforced Concrete strut. Inclinometer installed in retaining wall also shows that the tensile force produced by shrinkage tends to pull the diaphragm wall, which makes an enlargement to the deflection under earth pressure. This paper describes the layout of retaining structure, ground conditions, excavation procedures, and monitoring installation. Monitoring data shows that concrete shrinkage in the super-long RC strut will produce tension to the supporting structure. The influence of concrete shrinkage and relative controlling strategy are suggested in the end.

Info:

Periodical:

Advanced Materials Research (Volumes 368-373)

Edited by:

Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren

Pages:

2880-2886

DOI:

10.4028/www.scientific.net/AMR.368-373.2880

Citation:

L. Li "Shrinkage Induced Tension in Reinforced Concrete Struts for Retaining Large-Scale Excavation", Advanced Materials Research, Vols. 368-373, pp. 2880-2886, 2012

Online since:

October 2011

Authors:

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.