洛阳隋唐城应天门遗址保护建筑总体结构设计  

Overall structure design of the conservation building of YingTianMen archaeological site of Luoyang City of Sui and Tang Dynasties

作　　者：徐珂 田立强 马志平 XU Ke;TIAN Liqiang;MA Zhiping(Architectural Design&Research Institute of Tsinghua University Co.,Ltd.,Beijing 100084,China)

机构地区：[1]清华大学建筑设计研究院有限公司,北京100084

出　　处：《建筑结构》2021年第21期111-118,共8页Building Structure

摘　　要：洛阳隋唐城应天门遗址保护建筑为土遗址文物保护性建筑,建筑外墙设计为1∶4倾斜角度,展示古城墙形态,将土遗址罩在建筑内部。倾斜支撑柱对基础产生水平力,在土遗址下采用暗挖顶管结构,设置抗水平推力的预应力拉杆,使桩基础以竖向荷载受力为主。上部建筑在平面分为5个结构区段,各区段采用空间桁架和异形框架结构形式,为土遗址保护提出创新性解决方案。就下部遗址层、中部城墙层及上部建筑层关系,介绍了各结构区段结构体系的组成及主要荷载传递路径。对于平衡柱脚水平推力的预应力拉杆,采用施工阶段至使用阶段全过程模拟分析方法,确定了预应力拉杆的施工张拉控制节点,可作为预应力施工控制原则。采用有限元模拟分析、现场试验的方法对斜柱柱脚、预应力锚板等重要节点进行校核。最后,根据遗址保护建筑的原则,结合项目关键部位及难点,提出了施工阶段监测及控制的主要措施。The conservation building of YingTianMen archaeological site of Luoyang City of Sui and Tang Dynasties is designed to protect the soil site.The exterior wall of the building is designed with a 1∶4 inclination angle.The building covers the soil site inside and displays the shape of the ancient city wall.The inclined support column exerts a horizontal force on the foundation.Under the soil site,the underground excavation and pipe jacking structure was adopted,and the prestressed tie rod was set up to resist horizontal thrust,so that the pile foundation was mainly subjected to vertical load.The above-ground buildings are divided into five structural sections,and each section adopts the form of space truss and special-shaped frame structure,which puts forward innovative solutions for the protection of soil site.Based on the relationship between the lower site layer,the middle city wall layer and the upper building layer,the composition of the structural system and the main load transfer path of each structural section were introduced.For the prestressed tie rod balancing the horizontal thrust of the column foot,the whole process simulation analysis method from the construction stage to the use stage was adopted to determine the construction tension control node of the prestressed tie rod as the prestressed construction control principle.The important joints such as inclined column foot and prestressed anchor plate were checked by finite element simulation analysis and field test.At last,according to the principle of heritage site building conservation and combining the key parts and difficulties of the project,the main measures of monitoring and control in the construction stage were put forward.

关 键 词：洛阳隋唐城应天门遗址 遗址保护建筑 转换结构 预应力拉杆 振型分析 节点设计 施工监控 

分 类 号：TU318[建筑科学—结构工程]