Fatigue Behavior of Unbonded Partially Prestressed Concrete Beams with Flexure

作     者：Song, YP Che, HM Yi, W 

作者机构：SW JIAOTONG UNIVDEPT BRIDGE ENGNXIAN 610031PEOPLES R CHINA 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：1997年第12卷第2期

页      面：225-234页

核心收录：

学科分类：081505[工学-港口、海岸及近海工程] 0908[农学-水产] 08[工学] 0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0707[理学-海洋科学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0802[工学-机械工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 0801[工学-力学（可授工学、理学学位）] 

主　　题：fatigue behavior unbonded partially prestressed concrete beam 

摘      要：A study on fatigue behavior of unbonded partially prestressed concrete beams is presented. Model tests have been carried out in static loading and cyclic compressive loading on 15 beams with flexure. The ratios of the lower limit to the upper limit of fatigue load are 0.5 and 0.3 respectively, and the frequencies of cyclic loading are 8 Hz and 4.5 Hz respectively. The experimental results of the strains of the concrete and steel bars, the deflection of test beams, and the crack width of normal section are analyzed. According to statistics and analysis of test results, the corresponding calculation models are developed and presented.