中国科学院大学存济医学院基础医学大楼廊桥结构设计

Structural design of corridor bridge in basic medicine building of Cunji Medical College of Chinese Academy of Sciences

中国科学院大学存济医学院基础医学大楼,整体呈“口”字型布局,由于建筑高度及结构形式不同,设缝划分为三个结构单元,即“U”字型框架-剪力墙结构的教学试验楼、高度35m的剪力墙结构荣誉塔以及“一”字型36m的大跨度拱桥。拱桥跨度大,同时边拱上托一层框架,且建筑造型及装饰荷载较大,设计时采用型钢混凝土拱梁及型钢混凝土支承柱墩,并在支承柱墩之间设置型钢混凝土水平拉梁,有效地解决了拱脚推力对于支承柱墩及结构整体的影响。本文通过案例介绍了大跨度拱桥的设计、计算分析及两种方案的比较,并提出对于关键构件及节点的设计及采用的加强措施。

The basic medical building of Cunji Medical College,University of Chinese Academy of Sciences has a“mouth”-shaped layout as a whole.Due to the different building heights and structural forms,the joints are divided into three structural units,namely the“U”-shaped frame-shear wall structure.The teaching and experiment building,the 35-meter shear wall structure honor tower and the“one”-shaped 36-meter long-span arch bridge.The arch bridge has a large span,a frame supported on the side arch,and the architectural shape and decoration load are relatively large.The steel concrete arch beam and supporting column piers are used in the design,and horizontal tension beams are set between the supporting column piers,which effectively solves the problem of arch foot.The impact of the thrust on the supporting pier and the structure as a whole.This article introduces the design,calculation analysis and comparison of two schemes of long-span arch bridge through a case,and puts forward the design of key components and nodes and the strengthening measures adopted.