Title:
DEVICE FOR APPLYING EXTERNAL PRESTRESS ON BASIS OF ON-SITE RELEASE, AND BRIDGE REINFORCEMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2023/159811
Kind Code:
A1
Abstract:
A device for applying external prestress on the basis of on-site release, and a bridge reinforcement method. The device for applying external prestress on the basis of on-site release consists of a bow component (100), a shaping and release mechanism (200), a reinforcement force adjustment mechanism (300), and a reinforcement mechanism (400). Production, shaping, and energy storage of the bow component (100) can be completed in a factory, so that the construction period can be effectively shortened, thereby reducing the impact on traffic. According to the present device, structural reinforcement is performed on the basis of on-site release, thereby avoiding a series of complex operations such as on-site tensioning and prestressing; moreover, the device can better adapt to a scene having a limited construction space, avoiding the problem that a large construction space is occupied due to on-site tensioning and prestressing. When the device for applying external prestress on the basis of on-site release is used for reinforcing a bridge, the prestress is slowly released on site to adapt to requirements for different degrees of reinforcement, and dynamic regulation and control of the reinforcement effect are achieved.
Inventors:
WANG LEI (CN)
CHEN RUI (CN)
YI SHANCHANG (CN)
MA YAFEI (CN)
DAI LIZHAO (CN)
HUANG KE (CN)
CHEN RUI (CN)
YI SHANCHANG (CN)
MA YAFEI (CN)
DAI LIZHAO (CN)
HUANG KE (CN)
Application Number:
PCT/CN2022/099215
Publication Date:
August 31, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
UNIV CHANGSHA SCIENCE & TECH (CN)
International Classes:
E01D22/00
Domestic Patent References:
| WO2019137545A1 | 2019-07-18 |
Foreign References:
| CN114351604A | 2022-04-15 | |||
| CN110565546A | 2019-12-13 | |||
| CN110029592A | 2019-07-19 | |||
| CN108708498A | 2018-10-26 |
Attorney, Agent or Firm:
CHANGSHA RONG ZHI PATENT AGENCY (CN)
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