大孔径变截面钢筋混凝土洞腔体模板拼装体系的施工技术

Construction Technology of Large Aperture and Variable Cross Section Reinforced Concrete Hole Cavity Template Assembly System

风洞试验室混凝土结构的精度要求高,通过采用大孔径变截面钢筋混凝土洞腔体模板拼装体系的方法,结合BIM技术与有限元分析,解决了薄壁结构混凝土浇筑时由于施工荷载等因素出现的结构尺寸偏差,为了使结构整体变形值最小化并提高监测效率,通过搭设钢框架,把木模板调整和精度复核工序前置,使得模板在拼装过程更易监测尺寸偏差,提升后续工序的工效,大大提高了现浇钢筋混凝土的成型精度。

The precision requirements for the concrete structure of the wind tunnel laboratory are high.By using a large-diameter and variable cross-section reinforced concrete cavity template assembly system,combined with BIM technology and finite element analysis,the structural size deviation caused by construction loads and other factors during the pouring of thin-walled structure concrete is solved.In order to minimize the overall deformation value of the structure and improve monitoring efficiency,a steel frame is erected,and the wooden tem‐plate is adjusted and accuracy review process is carried out in advance,making it easier to monitor size deviation during the assembly pro‐cess of the template,improving the efficiency of subsequent processes,and greatly improving the forming accuracy of cast-in-place rein‐forced concrete.