砌体结构中小墙垛受压承载力分析与评定

Analysis and evaluation of compressive bearing capacity of small wall stack in masonry structure

对砌体结构安全鉴定中小墙垛存在受压承载力不满足规范要求的原因进行分析,指出采用PKPM等软件进行砌体结构受压承载力计算时,按照洞口中线分配小墙垛和长墙段的荷载是不合理的。指出长度不大于620mm的墙体均可视为小墙垛,并给出了相应的处理方法。通过实际砌体结构墙体受压承载力计算验证,该处理方法能够满足评定的要求。

The reasons for the compressive bearing capacity of small wall stacks in safety appraisal of masonry structure does not meet the requirements of the code were analyzed.It was pointed out that it is unreasonable to distribute the load of small wall stacks and long wall sections according to the central line of the opening,when using PKPM and other software to calculate the compressive bearing capacity of masonry structure.It was pointed out that the wall with the length less than 620 mm can be regarded as small wall stacks,and the corresponding treatment methods were given.Through compressive bearing capacity calculation verification of the actual masonry structure wall,the processing method can meet the requirements of evaluation.