内置H型钢PC组合梁受剪承载力试验研究

为研究内置H型钢PC组合梁的受剪承载力,介绍λ〈1．5条件下的内置H型钢PC组合梁的受剪试验,其中涵盖试件构件设计、方案、试验内容、现象及结果等。分析这类梁受剪承载力的主要组成部分,将剪跨比λ、预应力筋及混凝土H型铜腹板作为考察对象,探索各组成部分对受剪承栽力的影响。结果表明,混凝土H型钢腹板为这类梁受剪承载力提供了有力支持。以试验数据为基础得到三种剪跨比的这类梁的受剪承载力计算公式。

Experimental Study on Shear Capacity of PC Composite Beam with Encased H-Steel

In order to study the shear capacity of PC composite beam with encased H-steel, the shear test of this beam was introduced under the condition that the shear span ratio was less than 1.5, including test design, test scheme, test content, test phenomena and test results. Taking the shear span ratio h, prestressed tendons and the web of concrete H-steel as study objects, the major component of this beam＇s shear capacity was analyzed and the effect of each part on the shear capacity was explored. The test result showed that the web of concrete H-steel provided strong support for this beam＇s shear capacity, and the formulas used for calculating shear capacity of three kinds of shear span ratio are obtained based on the experimental data.