EXPERIMENTAL RESEARCH ON BENDING PERFORMANCE OF STEEL-UHPC LIGHTWEIGHT COMPOSITE DECK STRUCTURE
The steel-UHPC lightweight composite deck structure can solve the problems of steel bridge, such as fatigue cracking and the damage of asphalt overlay and so on.In order to study the transverse bending performance and crack distribution characteristics of steel-UHPC composite deck, fourteen steel-UHPC composite plates were tested.The test results show that, increasing the reinforcement ratio, reducing the cover thickness and the stud spacing can improve the cracking stress of the component.The number of cracks of unreinforced steel-UHPC composite plates is less, and the crack develops rapidly after cracking.The crack of dense reinforced steel-UHPC composite plates is thin and dense.Based on the proposed method for calculating the steel stress, the cracking load calculated according to the French code agrees well with the measured results.
Ultra-high performance concrete (UHPC) Flexural performance Crack Cracking stress
Jun Luo Xudong Shao Eugen Brühwiler Junhui Cao
College of Civil Engineering, Hunan University, China MCS, Swiss federal Institute of Technology in Lausanne, Switzerland
国际会议
福州
英文
755-764
2018-11-07（万方平台首次上网日期，不代表论文的发表时间）