基于试验数据的高强混凝土梁抗剪承载力计算方法Ⅱ.有腹筋梁  

Calculation Method of Shear Capacity of High Strength Concrete Beams Based on Experimental Data Ⅱ.With Web Reinforcement

作　　者：黄靓[1] 郑钟国 鲁懿虬 李叶 包堂堂[1] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]奥克兰大学土木与环境工程系

出　　处：《建筑科学与工程学报》2017年第5期120-126,共7页Journal of Architecture and Civil Engineering

基　　金：国家重点研发计划资助项目(2017YFC0703000)

摘　　要：收集了国内外学者所做的281根高强混凝土有腹筋梁剪切破坏的试验数据,建立了高强混凝土有腹筋梁剪切破坏的数据库。将数据库中所有梁的试验结果与中国《混凝土结构设计规范》(GB50010—2010)、美国混凝土结构设计规范ACI 318-14中的公式以及Zsutty公式所预测的结果进行比较,研究各公式对于高强混凝土梁的适用性,再将GB 50010—2010公式中的系数进行修正,得到一个新的公式。结果表明:Zsutty公式的预测结果最精确,美国ACI 318-14规范中公式的预测结果最为保守;新公式较原规范公式更加适用于高强混凝土有腹筋梁。The experimental data of shear failure of 281 high-strength concrete beams with web reinforcement were collected, and a database of shear failure of high-strength concrete with web reinforcement was established. The results of all the beams in the database were compared with those predicted by GB 50010--2010, ACI 318-14 and Zsutty equation. The applicability of each formula to high strength concrete beam was studied. Then, the formula in GB 50010--2010 was modified to get a proposed formula. The results show that the prediction results of the Zsutty equation are the most accurate, and the prediction results of the formula in ACI 318-14 are the most conservative. The proposed formula is more suitable for high strength concrete beams with web reinforcement compared to the formula in GB 50010---2010.

关 键 词：高强混凝土 有腹筋梁 抗剪承载力 数据库 计算方法 

分 类 号：TU311[建筑科学—结构工程]