甘肃陇南新天地结构设计关键要点

Key points of structural design for Longnan Xintiandi project in Gansu Province

甘肃陇南新天地位于8度抗震设防区。本工程结构存在高宽比超限、楼板局部不连续、竖向抗侧力构件不连续、悬挑较大、结构超长等多项抗震不利因素,结构设计通过对其基础底面零应力区、楼板应力、转换梁、型钢混凝土悬挑梁、温度作用等反复计算分析,采取有针对性的抗震加强措施。结构分析表明,该结构可以达到规范要求的抗震性能目标。

Longnan Xintiandi project in Gansu is located in 8 degrees seismic fortification zone. There are many antiseismic unfavorable factors in this structure,such as height aspect ratio beyond code-limitation,floor slab of partial discontinuity,transfer of lateral resistant member,large cantilever and super-long structure,et al. The structural design was analyzed by repeated calculation and analysis of the zero stress zone of the base,floor stress,transfer beam,cantilever beam of the steel reinforced concrete and the effect of temperature and so on,the measures strengthen the earthquake resistance were taken. Structural analysis shows that the prospective performance objectives of earthquakeresistance can be achieved.