某钢筋混凝土粮食平房仓抗震设计中的问题及处理建议.docxVIP

某钢筋混凝土粮食平房仓抗震设计中的问题及处理建议张敬书1，2 ，司伟龙1，2 ，冯立平3 ，金德保3 ，姚远1，2( 1． 西部灾害与环境力学教育部重点实验室( 兰州大学) ，甘肃 兰州 730000; 2． 兰州大学 土木工程与力学学院，甘肃 兰州730000; 3． 甘肃建设工程咨询设计有限责任公司，甘肃 兰州 730030)［提 要］ “200 亿斤国家粮食储备库平房仓通用施工图—24m 跨预应力钢筋混凝土折线形屋架平房仓”存在山墙承重、砌体围护墙嵌砌在排架柱间、未设柱间支撑等对结构抗震不利的问题。本文从抗震概念设计的原理出发，将该平房仓与传统单 层排架厂房进行了对比，分析了粮食荷载对上部结构、地基基础设计的影响，指出了该平房仓存在的抗震问题。最后有针对 性的提出了改变储粮方式和围护墙的位置、采用钢筋混凝土墙板和钢结构门式刚架体系等实用设计建议。［关键词］ 钢筋混凝土粮食平房仓; 粮食荷载; 排架体系; 抗震设计［中图分类号］ TU352. 1［文献标识码］ ASeismic Design Questions and Treatment Suggestion of A Reinforced Concrete Single-layerGrain StorehousesZhang Jing-shu1，2 ，Si Wei-long1，2 ，Feng Li-ping3 ，Jin De-bao3 ，Yao Yuan1，2( 1． Key Laboratory of Mechanics on Disaster and Environment in Western China ( Lanzhou University ) ，The Ministry of Education of China，Lanzhou 730000，China; 2． College of Civil Engineering and Mechanics，Lanzhou University，Lanzhou 730000，China; 3． Gansu Architecture Design ＆ Consultation Co． Ltd，Lanzhou 730030，China)Abstract: There are several problems in “the standard drawing of the 100 － billion-kilogram national grain reserve warehouse—the single-layer grain storehouse adopting 24 meter span prestressed concrete broken-line roof truss”，e． g． gable borne，the enclosure wall masonryed in the middle of bent frame column，no column bracings set etc． These problems may have negative effect on seismic of grain storehouse． In the paper，trational single-layer bent factory buildings and single-layer grain storehouses are compared，the effect of grain load on the design of structure and foundation is analyzed，seismic problems existing in storehouse are pointed out according to the seismic conceptual design theory． At last，several design suggestions are presented，e． g． changing the position of enclosure wall and the grain storage way of grain，adopting reinforce concrete enclosure wallboard and steel portal frame etc．Keywords: reinforced concrete single-layer grain storehouse; grain load; bent structure system; seismic designE-mail: