Investigation on Duct Grouting Quality of PC Continuous Box Girders

Wen Qing Wu; Shuai Chen; Xue Yuan Ma

doi:10.4028/www.scientific.net/AMM.94-96.2204

Paper Titles

Quality Control in Expressway Construction by Hard Asphalt
p.2183

Identification of Success Factors in Minimizing Delays on Construction Projects in IAU - Shoushtar Branch - Iran
p.2189

Study on the Structure Optimization of the Real Estate Industry Based on Low-Carbon Economic Model
p.2194

Analysis on Electricity Pricing Mechanism for Cascade Hydropower Stations in China
p.2200

Investigation on Duct Grouting Quality of PC Continuous Box Girders
p.2204

Studies on Green Houses’ Cost Based on Value Engineering
p.2209

On the Initial Establishment of Quality Assurance System for Indemnificatory Housing
p.2213

Identification and Appraisal of the Major Risk Accident in Coal Mine Production
p.2217

Studies on the Efficiency of the CFG Pile-Net Reinforcement in the Soft Soil Subgrade
p.2222

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 94-96Investigation on Duct Grouting Quality of PC...

Investigation on Duct Grouting Quality of PC Continuous Box Girders

Abstract:

Based on three bridge dismantlement, duct grouting density of prestressing tendons was investigated in-situ . The indices were analyzed statistically to find out the construction quality of PC box-girders in China. The investigation result indicated that the duct of prestressing tendons were only partially grouted, with over 50% ungrouted for longitudinal tendons and over 70% ungrouted for transverse tendons. Obviously, this increased the prestress loss in the tendons. The quantitative indices proposed in the paper is helpful in understanding the underlying reason for cracking and over flexing in the PC box girder ,and it also provided the important basis for structural analysis of PC box-girders.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 94-96)

Pages:

2204-2208

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.94-96.2204

Citation:

Cite this paper

Online since:

September 2011

Authors:

Wen Qing Wu, Shuai Chen, Xue Yuan Ma

Keywords:

Bridge Engineering, Concrete Box Girder, Concrete Surplus, Construction Quality, Duct Grouting, Investigation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Wang G.L., Xie J., Fu Y.F.(2008),Investigation Research on Crack of Long-span Prestressed Concrete Box Girder Bridges in Service [J], Journal of Highway and Transportation Research and Development,25(8):52-56(in Chinese)；

DOI: 10.1061/jhtrcq.0000271

Google Scholar

[2] Lu S.S. (1996), New development of modern prestressed concrete bridge structure. Journal of bridge construction, (1):41-48(in Chinese)

Google Scholar

[3] Zhou L.(1997), A Historical Review and the state of the art of the application of unbonded and external tendons in prestressed concrete bridges[J]. Journal of bridge construction,(3):1-12(in Chinese)

Google Scholar

[4] Du J.H.,and Liu X.L.(2002), Reliablity analysis of unbonded prestressed concrete members[J], Journal of architecture structure transaction,45(6):68-74(in Chinese).

Google Scholar

[5] Li X.P., Robertson I. (2003),Long-term performance predic-tions of the north Halawa valley viaduct [R].USA: UHM/CEE/03-04, University of Hawaii；

Google Scholar

[6] Li Z.Y.(1999),My view to the application of unbonded prestressed concrete in bridge structure[J]. Journal of central south highway engineering, 24 (1):39-40(in Chinese)

Google Scholar