Advances in Shear Strength of Reinforced Concrete Beams Against Size Effect

doi:10.3969/j.issn.1674-0696.2019.09.04

Abstract

Abstract: As shear failure mechanism is complicated and size effect theories for reinforced concrete beams are inconsistent, the shear strength of reinforced concrete beams against size effect was reviewed and both theoretical and experimental studies about shear strength of reinforced concrete beams were introduced based on size effect with and without web reinforcements after a summary of several different size effect theories. Based on the existing shear strength test data of reinforced concrete beams collected, it obtained a shear strength test database with 250 data for reinforced concrete beams against size effect. Upon the summary of previous research, the progress and prospect of shear strength of reinforced concrete members on size effect have been analyzed.

Key words: structural engineering, reinforced concrete beam, shear strength, size effect, test database, advance

摘要： 针对钢筋混凝土梁剪切破坏机理复杂、尺寸效应理论不统一等问题，对基于尺寸效应的钢筋混凝土梁剪切强度研究进行了综述。在概述尺寸效应的几种不同理论之后，并重点介绍了基于尺寸效应的无腹筋钢筋混凝土梁和有腹筋钢筋混凝土梁剪切强度基础理论研究和试验研究所取得的成果。在收集整理已有钢筋混凝土梁剪切强度试验基础上，得到包含250个试验数据的基于尺寸效应的钢筋混凝土梁剪切强度试验数据库。最后，在归纳总结基础上，对基于尺寸效应的钢筋混凝土梁剪切强度的发展进行了展望。

关键词: 结构工程, 钢筋混凝土梁, 剪切强度, 尺寸效应, 试验数据库, 进展

CLC Number:

TU375.1

LUO Lin1,2, ZHOU Yincheng2, XIANG Bo2, GONG Zheng2. Advances in Shear Strength of Reinforced Concrete Beams Against Size Effect[J]. Journal of Chongqing Jiaotong University(Natural Science), 2019, 38(09): 20-28.

罗林1,2，周胤呈2，向博2，龚拯2. 基于尺寸效应的钢筋混凝土梁剪切强度研究进展[J]. 重庆交通大学学报（自然科学版）, 2019, 38(09): 20-28.

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