汶川地震萝卜寨生土结构房屋震害分析  

Damage analysis of adobe houses in Luobo Village during Wenchuan earthquake

作　　者：谭皓[1] 张电吉[1] 卢海林[1] 

机构地区：[1]武汉工程大学资源与土木工程学院,湖北武汉430073

出　　处：《世界地震工程》2016年第2期38-43,共6页World Earthquake Engineering

摘　　要：根据汶川地震后对萝卜寨的考察,介绍了地基基础的破坏、结构体系不规则引起的生土结构房屋的倒塌、生土墙开裂破坏与屋面破坏等震害特征,为提高生土结构房屋的抗震性能提出建议:⑴选择对抗震有利的平面与立面布置;⑵生土墙的土料中掺入砂石、麦草、石灰等可以改善生土墙体受力性能的掺料;⑶应该对门窗洞口尺寸加以限制,门窗洞口宜采用木过梁;⑷宜采用双坡屋面,不宜采用单坡屋面,屋面采用轻质材料;⑸降低山墙高度,加强生土墙转角处和内外墙交接处的连接;⑹设置木柱与木梁(竹梁)可以加强生土结构房屋的整体性。According to the investigation of the Luobo Village after Wenchuan earthquake, this paper introduces foundation damage, collapse of adobe structure caused by the structural irregularity, cracking damage of adobe wall and roof damage. In order to improve the seismic performance of adobe structure some suggestions are proposed. （ 1 ） selecting the seismic favorable plane and elevation layout. （2） mixing sand, straw, lime and other admixtures to improve the mechanical properties of the adobe wall. （ 3 ） limiting the size of windows and doors, selecting use of wood lintel for windows and doors . （4） adopting double slope roof, but no a single slope roof, and using light- weight materials. （5）reducing the gable height, strengthening wall corner and wall junction connection. （6）setting wooden colums and wooden beams （bamboo beams）to enhance the integrity of adobe structure.

关 键 词：汶川地震 生土结构 震害 分析 

分 类 号：TU352[建筑科学—结构工程]