海控国际广场避难层结构综合施工技术

海控国际广场A座总建筑高度249.7m,在6,17,32,51层分别设置了避难层和设备转换层,其中17,32,51层为伸臂桁架结构避难层,层高5.5m,共设置8榀外伸臂桁架和4榀核心筒内置桁架,与外框钢结构环状桁架形成加强层。合理的施工流程设计与精确的钢结构安装以及钢筋工程、混凝土工程、模板工程、钢结构工程的施工交叉与配合是保证伸臂桁架避难层施工质量的关键。重点介绍伸臂桁架避难层各项工序的施工重点与交叉配合,保证了工程质量和总体进度,取得了预期经济效益和社会效益。

The Comprehensive Construction Technology for the Refuge Floors of HNA International Mansion

Tower A of HNA International Mansion is 249.7m in building height,and refuge and M&E transfer floors are located at floor 6,17,32,51.Moreover the floor 17,32,51 are overhanging truss structure for refuge purpose.Each of the three refuge floor height is 5.5m.Eight pieces of overhanging truss and 4 pieces of inner core wall truss are placed in each floor,which forming strengthening floor with steel circle truss of outer frame.The key items to ensure the construction quality are reasonable work process,accurate steel erection as well as crossing and combination of steel rebar installation,concrete work,formwork and steel structures.The paper introduces construction importance and crossing and combination construction to ensure the quality and schedule.Then good economical and social benefit is obtained.