某新区体育馆结构设计

Structural Design of a New District Gymnasium

某新区体育馆是乙级大型体育建筑,由比赛馆、健身馆、练习馆3部分组成。比赛馆混凝土部分采用框架-剪力墙结构,其余部分混凝土结构形式为现浇框架。上覆钢结构屋面均采用曲面钢管桁架结构;对超长不设缝混凝土部分采取设置后浇带、楼面构件中掺加抗裂纤维、布设无粘结直线预应力筋施加平面内预应力,解决混凝土温度及收缩、徐变应力。基础形式为Φ800钻孔灌注桩,桩长24 m。

The new district gymnasium is a big size stadium building of the grade B, and consists of a competition hall, a fitness center and a training hall. The concrete part of competition hall is frame-shear wall structure and the other two are cast-in-place framework structures. The overlying steel roofs are all curved steel pipe truss structure. In order to preventing the temperature stress, shrinkage stress and creep stress of super-long seamless concrete, set the late poured bands, add anti-crack fibers in structural elements, impose plane prestress with unbonded straight prestressed reinforcements. Cast-in-place bored piles are used with the diameter of 800 millimeters and the length of 24 meters.