US 11,753,780 B2
Mid-span axial force-free connecting device for earth-anchored cable-stayed bridge and method for mounting same
Jianhui Zhan, Wuhan (CN); Yuan Liao, Wuhan (CN); Wangxing Ding, Wuhan (CN); Yan Yang, Hanyang District (CN); Yuqing Liu, Wuhan (CN); Feng Shen, Wuhan (CN); Zhaohui Liu, Wuhan (CN); Shoufeng Tang, Wuhan (CN); Ming Zhang, Wuhan (CN); Jinxia Zhao, Wuhan (CN); Yajun Zhang, Wuhan (CN); Bo Yao, Wuhan (CN); Shan Pei, Wuhan (CN); Qifen Wei, Wuhan (CN); Zuowei Qin, Wuhan (CN); Xiaoqing Liu, Wuhan (CN); Wuzhou Hu, Wuhan (CN); Jing Liu, Wuhan (CN); Xingzhi Chen, Wuhan (CN); Hua Chen, Wuhan (CN); and Wei Jiang, Wuhan (CN)
Assigned to HUBEI COMMUNICATIONS PLANNING AND DESIGN INSTITUTE CO., LTD., Wuhan (CN); and HUBEI JIAOTOU SHIXI EXPRESSWAY CO., LTD., Wuhan (CN)
Filed by Hubei Communications Planning and Design Institute Co., Ltd., Wuhan (CN); and Hubei Jiaotou Shixi Expressway Co., Ltd., Wuhan (CN)
Filed on Jan. 9, 2023, as Appl. No. 18/94,454.
Claims priority of application No. 202210042357.0 (CN), filed on Jan. 14, 2022.
Prior Publication US 2023/0228045 A1, Jul. 20, 2023
Int. Cl. E01D 11/04 (2006.01); E01D 21/00 (2006.01)
CPC E01D 21/00 (2013.01) [E01D 11/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A mid-span axial force-free connecting device for an earth-anchored cable-stayed bridge, the device comprising an externally sleeved large steel box girder and an internally embedded small steel box girder arranged inside the externally sleeved large steel box girder a plurality of bearing beams arranged on an inner periphery of the externally sleeved large steel box girder;
a set of transverse spherical bearings;
a set of vertical spherical bearings;
wherein transverse spherical bearings or vertical spherical bearings from the set of transverse spherical bearings or from the set of vertical spherical bearings, respectively are arranged on the plurality of bearing beams; wherein the internally embedded small steel box girder is fixedly supported at a set of sections in the externally sleeved large steel box girder through a plurality of symmetrically arranged transverse spherical bearings and symmetrically arranged vertical spherical bearings from the set of transverse spherical bearings and from the set of vertical spherical bearings, respectively.