新型挡土墙砌块剪切性能试验与数值分析  

Experimental and numerical analysis of shear performance of new retaining wall blocks

作　　者：张信贵[1] 龙林川 韩伟 张懿丹 褚宏枫 ZHANG Xingui;LONG Linchuan;HAN Wei;ZHANG Yidan;CHU Hongfeng(College of Civil Engineering and Architecture,Guangxi University,Nanning530004,China;Guangxi University Design Institute Co.,Ltd.,Nanning530005,China;Qingdao Tengyuan Design Firm Co.,Ltd.,Qingdao 266061,China)

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]广西大学设计院有限公司,广西南宁530005 [3]青岛腾远设计事务所有限公司,山东青岛266061

出　　处：《混凝土》2023年第4期140-143,共4页Concrete

基　　金：国家自然科学基金(51268003,59868001)。

摘　　要：新型装配式挡土墙由榫卯型砌块干垒而成,通过模型试验,并结合有限元模拟,从局部的角度出发,对不同榫卯数量砌块的剪切性能进行了对比研究,结果表明:竖向压力和榫卯数量对砌块的抗剪性能有一定的影响,竖向压力越大,砌块的抗剪强度越高;榫卯数量的增多,砌块之间契合性变差,砌块的抗剪强度会降低;砌块损伤主要发生在榫卯部分,生产时应采取措施进行局部加强。该榫卯型砌块挡土墙的优化设计和加固提供了参考。New retaining wall composed of mortise and tenon joint type block heap up,through model test,it combined with the finite element simulation,from the perspective of local,the shear properties of the different number of mortise and tenon joint block has carried on the comparative study,the results show that the vertical stress and number of mortise and tenon joint is of certain influence to the shear properties of the block,the greater the vertical stress,the higher the shear strength of the block.As the number of mortise and tenon joints increases,the fit between the blocks becomes worse,and the shear strength of the blocks decreases.The damage of block mainly occurs in mortise and tenon joints,so measures should be taken to strengthen the parts in production.It provides a reference for the optimal design and reinforcement of mortise and tenon-joint block retaining wall.

关 键 词：挡土墙砌块 榫卯结构 模型试验 有限元模拟 

分 类 号：TU528.7[建筑科学—建筑技术科学]