装配式预制型钢部分外部混凝土梁受弯性能试验研究  

Experimental study on flexural performance of partially precast partially encased concrete composite beams

作　　者：梁炯丰[1,2] 邓洁 刘小娟 王刘浩翔[1] LIANG Jiongfeng;DENG Jie;LIU Xiaojuan;WANG Liuhaoxiang(Faculty of Civil&Architecture Engineering,East China University of Technology,Nanchang 330013,China;Key Laboratory for Structural Engineering and Disaster Prevention of Fujian Province,Huaqiao University,Xiamen 361021,China)

机构地区：[1]东华理工大学土木与建筑工程学院,江西南昌330013 [2]华侨大学福建省结构工程与防灾重点实验室,福建厦门361021

出　　处：《混凝土》2023年第9期155-157,共3页Concrete

基　　金：国家自然科学基金(52068001);江西省主要学科学术与技术带头人项目(20204BCJL2037);江西省重点研发计划项目(20212BBG73002);华侨大学结构工程与防灾福建省重点实验室开放课题(SEDPFJ-2020-01)。

摘　　要：提出了一种新型的钢-混凝土组合梁——部分预制部分外包混凝土(PEC)组合梁。为了研究部分预制PEC组合梁的抗弯性能,对六根梁进行了静力加载试验,其中包括1根现浇PEC组合梁和5根部分预制PEC组合梁。结果表明:部分预制PEC组合梁的抗弯性能与现浇PEC组合梁的抗弯性能相似。PEC组合梁的抗弯承载力几乎不受浇筑方法的影响。部分预制组合梁的抗弯能力随着混凝土强度或底层钢筋翼缘厚度的增加而增加。An innovative steel and concrete composite beam-partially precast partially encased concrete(PEC)composite beam is proposed.To investigate the flexural performance of partially precast PEC composite beams,static loading tests are conducted on six beams,including one cast-in-place PEC composite beam and five partially precast PEC composite beams.The results show that the flexural performance of partially precast PEC composite beams is similar to that of cast-in-place PEC composite beam.The flexural capacity of PEC composite beams seldom affects by construction method.And the flexural capacity of the partially precast composite beams increases as increasing concrete strength or the thickness of bottom steel flange.

关 键 词：抗弯性能 部分预制 现浇 部分包裹混凝土 组合梁 

分 类 号：TU528.7[建筑科学—建筑技术科学]