Title:
PIER TOP SWIVEL METHOD FOR CONTINUOUS STEEL TRUSS
Document Type and Number:
WIPO Patent Application WO/2022/151827
Kind Code:
A1
Abstract:
A pier top swivel method for a continuous steel truss, comprising: performing cantilever assembly on a continuous steel truss on a pier top of a swivel pier (1) until a maximum cantilever state; swiveling the continuous steel truss to a preset position of a bridge; temporarily locking the continuous steel truss using a temporary support (7); installing a mid-span closure segment and a side-span post-assembly segment of the continuous steel truss; and installing a permanent support (10) below the continuous steel truss. According to the method, the temporary support (7) is provided on the pier top, supporting feet (9) and reinforcing cross struts (4, 51, 52) cooperate to disperse and reduce the concentrated stress condition of the steel truss, the problems that local rods of the steel truss are subjected to large stress and a joint structure is difficult to design are solved, thereby ensuring the pier top swivel of a continuous steel truss.
Inventors:
XU SHENGQIAO (CN)
PENG LANPING (CN)
GAO JINGQING (CN)
LI YANMING (CN)
YANG YONGMING (CN)
GAO CE (CN)
JIN ZHENGKAI (CN)
LI XIANTING (CN)
PENG LANPING (CN)
GAO JINGQING (CN)
LI YANMING (CN)
YANG YONGMING (CN)
GAO CE (CN)
JIN ZHENGKAI (CN)
LI XIANTING (CN)
Application Number:
PCT/CN2021/130364
Publication Date:
July 21, 2022
Filing Date:
November 12, 2021
Export Citation:
Assignee:
CHINA RAILWAY ENG CONSULTING GROUP CO LTD (CN)
International Classes:
E01D21/00; E01D1/00; E01D19/00; E01D21/08
Foreign References:
| CN112854020A | 2021-05-28 | |||
| CN110453585A | 2019-11-15 | |||
| CN110144830A | 2019-08-20 | |||
| CN110629675A | 2019-12-31 | |||
| RU2369683C1 | 2009-10-10 |
Other References:
LI TAO: "Discussion on the Swivel Construction of Railroad Continuous Beam Bridge", ENGINEERING AND TECHNOLOGICAL RESEARCH, vol. 6, 15 June 2018 (2018-06-15), pages 129 - 130, XP055951495, ISSN: 2096-2789, DOI: 10.19537/j.cnki.2096-2789.2018.06.062
Attorney, Agent or Firm:
BEIJING JIZHI INTELLECTUAL PROPERTY LIMITED (CN)
Download PDF: