设计总说明1 工程概况 22 设计依据 32.1设计基本资料.............................................................................................................32.2设计基本参数.............................................................................................................32.3设计参照标准、法律规范及资料..............................................................................33 设计原则 33.1结构安全可靠.............................................................................................................33.2功能完善有用.............................................................................................................33.3效果美观大方.............................................................................................................43.4系统节能环保.............................................................................................................43.5安装维护方便.............................................................................................................43.6造价经济合理.............................................................................................................44 材料选用 44.1一般规定.....................................................................................................................44.2铝合金材料.................................................................................................................44.3钢材.............................................................................................................................54.4玻璃.............................................................................................................................54.5石材.............................................................................................................................54.6铝板.............................................................................................................................54.7密封材料.........................