Study on Temperature Effect of Single Expansion Joint Bridge

It was well known that expansion joint of a bridge was a weak part of structure, it led to early structure destroy and reduced the bridge life. Basing on Life-Cycle Design of bridge structure , a new type of optimum bridge structure --- Semi–Integral Abutment Jointless Bridge was put forward. Firstly the new bridge structure was defined and its performance was described. Then several problems that included temperature effect, the interaction of structure-soil etc were discussed about the application of the new bridge structure. Finally the conclusion is the Semi–Integral Abutment Jointless Bridge is a kind of durable bridge structure that has rational mechanical performance and great practical value.

Download Full-text

Solving Measures and Application of Super-Long Structure under Temperature Problem

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.915-916.1054 ◽

2014 ◽

Vol 915-916 ◽

pp. 1054-1057

Author(s):

Yong Sheng Wang ◽

Li Hua Wu ◽

Zong Hai Xie

Keyword(s):

Temperature Effect ◽

Temperature Stress ◽

Concrete Structure ◽

Engineering Application ◽

Shrinkage Stress ◽

Expansion Joint ◽

Design Basis ◽

Temperature Problem ◽

Environment Temperature ◽

Structure Plane

Due to the long structure plane size of the super-long concrete structure ,considering the effect of environment temperature on the structure in design. the expansion joint is arranged to solve the problem of temperature stress and shrinkage stress in the past.This paper discusses several new solutions on the temperature problems of super-long structure,and the unbonded prestressed technology in the engineering application of super-long structure under temperature effect to solve problems to do the analysis,provides the design basis for engineering designers to consider the temperature effect.

Download Full-text

Research on Temperature Stress of Annular Super-Long Frame Structure by Finite Element Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.639-640.1200 ◽

2013 ◽

Vol 639-640 ◽

pp. 1200-1205 ◽

Cited By ~ 1

Author(s):

Zhi Yong Yang ◽

Liang Zhao ◽

Peng Zhang ◽

Yu Xiang Xing

Keyword(s):

Temperature Effect ◽

Temperature Stress ◽

Temperature Effects ◽

Frame Structure ◽

Expansion Joint ◽

Reinforced Concrete Frame ◽

Concrete Frame ◽

Concrete Shrinkage ◽

Temperature Load ◽

Apparent Influence

The temperature stress calculation of multi-storey structure is very complicated. Many researches have been taken for the frame structures with rectangular plane, but very few references about annular plane. Based on the ANSYS program, the structure temperature effect of a multi-storey reinforced concrete frame which plane shaped like the elliptic is analyzed in this paper. The overall temperature load and concrete shrinkage equivalent temperature are considered in the analysis. The results reflect that curvature has an apparent influence on the temperature stress of annular super-long structure. Besides, the structure temperature effects are studied on both cases of the structure with expansion joint and without it, which shows that reasonable installation of expansion joint can decrease the temperature stress of annular structure. The influence of structure member rigidity on temperature effect is also discussed by changing the size of the section; all of these could offer reference for engineering design.

Download Full-text