交叉平面桁架-网架钢屋盖结构施工技术

Construction Technology of Intersecting Plan Truss-grid Steel Roof Structure

珠海机场综合交通枢纽项目一期工程屋盖钢结构工程,具有规模大、结构形式复杂、造型精致等特点。采用地面预拼装、分段吊装施工工艺,并对桁架预拼装、直线度及垂直度等进行测量及监测,较好地完成了屋盖钢结构安装,保证了安装精度。相比传统施工工艺,该施工工艺有效降低了施工成本。

The roof steel structure project of Zhuhai Airport comprehensive transportation hub project phaseⅠhas the characteristics of large scale,complex structural form and exquisite shape.The construction technology of ground pre-assembly and segmented hoisting is adopted,and the pre-assembly,straightness and perpendicularity of truss are measured and monitored.The installation of roof steel structure is completed well and the installation accuracy is ensured.Compared with the traditional construction technology,the construction technology effectively reduces the construction cost.