京基金融中心施工全过程跟踪研究

Tracking investigation of whole construction process of Kingkey Financial Centre

摘要:

为获得典型超高层结构施工过程中的响应规律,以京基金融中心为背景,开发并建立完整的超高层施工监测系统,对结构施工全过程进行跟踪监测,获取结构施工过程的响应数据,验证系统实用性;在此基础上,采用所开发的超高层施工全过程模拟技术对结构施工全过程进行跟踪模拟,综合施工全过程仿真数据与监测数据对京基金融中心施工竖向变形累积及应力发展规律进行全过程跟踪研究．结果表明,施工过程中结构竖向压缩变形及关键竖向构件的应力随着施工进度稳定增长,无较大突变,总体构件应力水平较低,具有较高的应力冗余,证明了京基金融中心施工方案及进度的合理性．最终仿真结果与实测结果的良好吻合证明了全过程仿真和监测技术的准确性及实用性,可用于同类超高层结构的全过程跟踪研究,并指导结构施工过程．

Abstract:

To obtain the response rules of typical super high-rise building during the whole construction process, based on Shenzhen Kingkey Financial Center, the construction monitoring system was established and improved to keep tracking the whole process of construction. Response data of the construction process was attained to verify system availability. Furthermore, the tracking simulation of full-process construction was conducted using the developed super high-rise construction simulation technology, and the law of accumulation of vertical deformation and development of stress was studied by integrating simulation data and monitoring data on Shenzhen Kingkey Financial Center during full-process construction. The results indicate that vertical compressive deformation of the structure and stress of critical vertical elements grow steadily with the progress of construction schedule, without large mutation, overall stress of components of structure is small and has much redundancy, which proved that construction plan and schedule of Shenzhen Kingkey Financial Center was reasonable. Final simulation results agreed well with the measured results certified to practicability and accuracy of full-process simulation and monitoring technology, which can be applied in the following of whole process of similar super high-rise structure and guide the construction process.