配筋UHPC构件轴心受拉承载力计算研究  

Study on calculation of axial tensile capacity of reinforced ultra-high performance concrete components

作　　者：孙科 郑伟锋 李志刚 舒恺 王朴炎 周剑 薛事成 吴香国[3] 赵毅 SUN Ke;ZHENG Weifeng;LI Zhigang;SHU Kai;WANG Puyan;ZHOU Jian;XUE Shicheng;WU Xiangguo;ZHAO Yi(State Grid Ningbo Power Supply Company,Ningbo 315016,China;China Academy of Building Research Co.,Ltd.,Beijing 100013,China;Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education,Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of the Industry and Information Technology,Harbin Institute of Technology,Harbin 150090,China)

机构地区：[1]国网浙江省电力有限公司宁波供电公司,浙江宁波315016 [2]中国建筑科学研究院有限公司,北京100013 [3]哈尔滨工业大学结构工程灾变与控制教育部重点实验室土木工程智能防灾减灾工业和信息化部重点实验室,黑龙江哈尔滨150090

出　　处：《混凝土与水泥制品》2024年第1期47-50,55,共5页China Concrete and Cement Products

基　　金：国网浙江省电力有限公司科技项目(5211NB21N005)。

摘　　要：为了研究配筋超高性能混凝土(RUHPC)轴心受拉构件承载力计算公式,基于试验统计数据,分析了纵筋配筋率、钢纤维掺量对构件轴心抗拉承载力的影响,并在现行混凝土结构设计规范计算模型基础上,简化了正截面承载力计算公式,给出了受拉区等效应力计算系数建议值,可靠指标分析满足要求。In order to study the calculation formula for the bearing capacity of reinforced ultra-high performance concrete(RUHPC)axial tension components,based on the experimental statistical data,the influence of longitudinal reinforcement ratio and steel fiber content on the axial tensile bearing capacity of components was analyzed.According to the current calculation mode of concrete structure design specifications,a simplified calculation expression for the normal section bearing capacity of RUHPC axial tension compenents was proposed,and a recommended value for the equivalent stress calculation coefficient in the UHPC tensile zone was proposed.The reliability analysis of components meets the relevant requirements.

关 键 词：配筋超高性能混凝土(RUHPC) 轴心受拉 承载力 可靠指标 

分 类 号：TU528.7[建筑科学—建筑技术科学]