（1 重庆交通大学土木工程学院， 重庆 400074； 2 香港中文大学建筑学院， 香港 999077；3 重庆大学建筑规划设计研究总院有限公司钢木结构设计研究院， 重庆 400045；4 重庆中竹建筑科技有限公司， 重庆 401147； 5 清华大学土木工程系， 北京 100084）

［摘要］青杨洲编木拱虹桥是2019北京世园会园区内的一个景观桥梁，桥梁全长14-4m，净跨距13-6m，宽3-8m。采用MIDAS/Civil有限元软件对此桥梁进行三维仿真模拟，结果表明，此桥梁的强度及稳定性满足要求。此编木拱虹桥的施工采用现代木结构装配式施工新技术，即将整座桥梁的上部结构先拆分成构件再拆分成标准化零部件，在工厂内生产加工标准化零部件，运输至现场临时场地后将零部件拼装成构件，将构件整体吊装并拼装成型，这种方法减少了工期，简化了工艺，降低了对技术工匠的依赖，不仅对后续编木拱虹桥的推广起到了良好的示范作用，而且使编木拱这种构造复杂的传统结构能够大规模地被复制，使这种带有传统文化特色的编木拱结构可很好地被继承和发杨。

［关键词］2019北京世园会； 编木拱； 虹桥； 现代木结构； 装配式施工

中图分类号：TU398+.6文献标识码：A文章编号：1002-848X(2019)17-0051-05

New technology in design and construction of Qingyangzhou woven timber arch bridge of International Horticultural Exhibition 2019，Beijing，China

Xiong Junfeng1, Shao Changzhuan2，5, Luo Zhi3, Jin Yongzhi4, Wu Xiubo1

(1 School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China；2 Department of Architecture, Chinese University of Hong Kong, Hong Kong 999077, China; 3 Department of Steel and Wood Structure, General Architectural Planning & Design Research Institute of Chongqing University Co., Ltd., Chongqing 400045, China; 4 Chongqing Zhongzhu Architecture & Technology Co., Ltd., Chongqing 401147, China; 5 Department of Civil Engineering, Tsinghua University, Beijing 100084, China)

Abstract:Qingyangzhou woven timber arch bridge is a landscape bridge located in International Horticultural Exhibition 2019 Beijing, with a total length of 14-4m, and a net span of 13-6m and a width of 3-8m. 3D FEM simulation has been performed using MIDAS/Civil software, and the results show the bridge meets the requirement of strength and stability. The modern wood structure prefabricated construction technology has been adopted in in this bridge, in which the superstructure of this bridge has been divided into components and then into standardized parts, and the standardized parts are produced in the factory, transported to a temporary site near the project site, the parts are assembled into components, and the components are craned and assembled into the whole bridge. This method has decreased the construction period, simplified the working process and reduced the dependence on technical craftsmen. It not only plays a good role in the promotion of woven timber arch bridge, but also makes this complex structure can be replicated in large quantities, so as to enable this traditional cultural structure to be inherited and popularized.

Keywords:International Horticultural Exhibition 2019, Beijing, China; woven timber arch; rainbow bridge; modern wood structure; prefabricated construction

通讯作者：罗智，硕士，工程师，Email：chongqingzhongzhu@163.com。