一、基本概况 北京燕山石化公司东风化工厂地毯装置主厂房四个车间,建筑面积共40000米~2。该车间的特点是生产设备大,叉车运输频繁,通风管道纵横设置,大的宽度达3米,都需吊装在屋盖上,为此采用了18×18米的大柱网,并采用网架屋盖结构。屋面和墙面均采用引 First, the basic situation Beijing Yanshan Petrochemical Company Dongfeng Chemical Factory carpet factory main plant four workshops, a total construction area of ​​40,000 meters ~ 2. The workshop is characterized by large production equipment, frequent forklift transportation, vertical and horizontal ventilation ducts, a large width of 3 meters, all of which are required to be lifted on the roof. For this purpose, a large 18x18-meter column net is adopted and a grid is adopted. Roof structure. Roofs and walls are cited