摘要
为了给粗合成纤维在地震区的推广应用提供科学依据,采用试验方法研究了粗合成纤维混凝土梁在低周反复荷载作用下的抗震性能,重点分析了破坏形态、特征荷载及其挠度、延性、刚度退化及耗能能力,探讨了粗合成纤维混凝土梁的延性评价方法．粗合成纤维混凝土梁延性系数比普通钢筋混凝土梁提高约49％,抗震性能优良．
In order to provide technical foundation for using widely synthetic macro-fiber in earthquake region, this paper studies on the seismic performance of synthetic macro-fiber reinforced concrete beam under low reversed cyclic loads by the experimental method, and emphasizes on discussing the failure pattern, characteristic loads and deflections, ductile, stiffness degradation and energy dissipation capacity, ductile evaluating method of synthetic macro-fiber reinforced concrete beam is analyzed, the ductile index of synthetic macrofiber reinforced concrete beam is larger 49 % than that of plain concrete beam, and presents good seismic performance.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2007年第4期388-392,共5页
Journal of Beijing University of Technology
基金
北京市自然科学基金重点项目(8051001)
关键词
合成纤维
抗震
延性
耗能
混凝土
synthetic fibers
seismic
ductile
energy dissipation
concrete
