基于试验的节能砌块隐形密框墙体复合材料力学模型  

TEST BASED COMPOSITE MATERIAL MECHANICAL MODEL OF ENERGY-SAVING BLOCK & INVISIBLE MULTI-RIBBED FRAME WALLS

作　　者：李升才[1] 王会丽[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《工程力学》2010年第9期161-167,共7页Engineering Mechanics

基　　金：国家自然科学基金项目(50948036);福建省科技计划重点项目(2008H0029);福建省自然科学基金计划项目(E0810022)

摘　　要：该文在六片1/2比例节能砌块隐形密框墙体低周反复加载拟静力试验基础上,并结合节能砌块隐形密框墙体的特殊构造,建立了弹性阶段墙体的复合材料等效弹性板力学简化模型,其中包括两种正交各向异性复合材料计算模型,进而将墙体简化为各向同性的计算模型,给出了墙体弹性模量及剪切模量实用计算公式,为节能砌块隐形密框墙体的实用弹性刚度计算公式提供了必要的参数。将理论计算与试验结果进行对比分析,对墙体的弹性抗侧刚度的计算公式进行修正,提出了适合于节能砌块隐形密框墙体的弹性抗侧刚度的计算公式。结果表明:复合材料力学简化模型具有一定的理论依据和实用价值,能够满足实际工程计算需要。Based on low-cycle and reverse horizontal loading test of six 1/2-scaled energy–saving block invisible multi-ribbed frame walls, the equivalent-elastic-plate mechanical model of the walls in the elastic stage was established. The model considers the construction details of energy–saving block invisible multi-ribbed frame walls, and includes two orthotropic composite materials calculation model. Then, the walls was modeled simply using an isotropy calculation model, and practical design formulas for elastic module and shear module were given, which provide necessary parameters for the practical design formula for elastic rigidity. The formula of elastic lateral rigidity was calibrated using test results, and the practical design formula for elastic lateral rigidity for energy–saving block invisible multi-ribbed frame walls was established. The results show that the proposed model can meet the requirement of engineering calculation.

关 键 词：节能砌块隐形密框墙体 拟静力试验 复合材料力学模型 弹性抗侧刚度 弹性常数 

分 类 号：TU317.1[建筑科学—结构工程] TU398.9