栓钉数量对组合桥面板受弯性能的影响  

INFLUENCE OF THE STUDS NUMBER ON THE BENDING PERFORMANCE OF THE COMPOSITE BRIDGE DECK

作　　者：曾田 吴平[1] 刘鑫[1] ZENG Tian;WU Ping;LIU Xin(institute of Advanced Engineering Structures and Materials,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学高性能建筑结构与材料研究所,杭州310058

出　　处：《低温建筑技术》2021年第9期73-75,84,共4页Low Temperature Architecture Technology

摘　　要：为了探究栓钉连接件数量对钢-超高韧性混凝土组合桥面板受弯性能的影响情况,采用数值模拟的方式进行了研究。在数值模型分析中,利用ABAQUS建立了9个有限元模型,通过四点弯加载得到了9个模型的荷载位移曲线和应力云图。结果表明栓钉数量基本不影响组合桥面板的刚度,但是在一定范围内增加栓钉数量可以增强UHTCC与桥面板之间的连接,提高组合桥面板的极限承载力,并且会增大横向钢筋受到的拉力。In order to study the effect of the number of studs on the flexural performance of steel-ultra-high toughness cementitious composites(UHTCC) composite bridge decks,numerical simulation was carried out. In the numerical simulation,nine models were established using ABAQUS. The load-displacement curves and stress cloud diagrams of 9 models were obtained through four-point bending loading. The results showed that the number of studs basically does not affect the rigidity of the composite bridge deck,but increasing the number of studs within a certain range can strengthen the connection between the UHTCC and the bridge deck,and it would increase the ultimate bearing capacity of the composite bridge deck and increase the tensile force of the transverse steel bars.

关 键 词：钢-UHTCC组合桥面板 受弯性能 栓钉连接件 数值模拟 

分 类 号：TU317.1[建筑科学—结构工程]