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A platform for research: civil engineering, architecture and urbanism
Technology for reinforcing concrete beam bridge by separated steel pipe arch pre-stress slings
Beam body cracking and down-warping diseases of a pre-stressed concrete continuous box beam and a steel structure beam bridge are generally reinforced by sticking steel plates and carbon fiber cloth or increasing in-vivo pre-stressed steel bundles. If the traditional conventional reinforcing method still cannot achieve a good effect, the technology can be adopted for reinforcing. The technology for reinforcing concrete beam bridge by separated steel pipe arch pre-stress slings comprises the steps that pile foundations, bearing platforms and arch supports are newly added to the two sides of anoriginal bridge pier column to install steel pipe arches, steel joists are transversely arranged at the bottom of an original bridge beam, the slings on the steel pipe arches are connected with the joists, the slings are tensioned, stress is applied according to design, upward stress is transmitted through the joists, and a beam body is supported to achieve the reinforcing effect. Due to the factthat the pressure of the pier column is reduced, the pier column is reinforced. Original bridge traffic can be carried out as usual by adopting the technology provided by the invention for reinforcement.
对予应力混凝土连续箱梁、钢构梁式桥出现的梁体开裂和下挠病害，一般都采用粘贴钢板、炭纤维布，或是增加体内予应力钢束进行加固。如果采用这些传统常规的加固办法仍收不到好的效果，可采用本发明技术进行加固。做法是：在原桥墩柱两侧新增桩基、承台、拱座安装钢管拱，在原桥梁梁底横向设置钢托梁，钢管拱上的吊索与托梁连接，对吊索进行张拉，按设计施加予应力，通过托梁传递向上应力，托住梁体起到加固作用。由于减轻了墩柱压力，对墩柱也起到加固作用。采用本发明技术加固，原桥交通可照常进行。
Technology for reinforcing concrete beam bridge by separated steel pipe arch pre-stress slings
Beam body cracking and down-warping diseases of a pre-stressed concrete continuous box beam and a steel structure beam bridge are generally reinforced by sticking steel plates and carbon fiber cloth or increasing in-vivo pre-stressed steel bundles. If the traditional conventional reinforcing method still cannot achieve a good effect, the technology can be adopted for reinforcing. The technology for reinforcing concrete beam bridge by separated steel pipe arch pre-stress slings comprises the steps that pile foundations, bearing platforms and arch supports are newly added to the two sides of anoriginal bridge pier column to install steel pipe arches, steel joists are transversely arranged at the bottom of an original bridge beam, the slings on the steel pipe arches are connected with the joists, the slings are tensioned, stress is applied according to design, upward stress is transmitted through the joists, and a beam body is supported to achieve the reinforcing effect. Due to the factthat the pressure of the pier column is reduced, the pier column is reinforced. Original bridge traffic can be carried out as usual by adopting the technology provided by the invention for reinforcement.
对予应力混凝土连续箱梁、钢构梁式桥出现的梁体开裂和下挠病害，一般都采用粘贴钢板、炭纤维布，或是增加体内予应力钢束进行加固。如果采用这些传统常规的加固办法仍收不到好的效果，可采用本发明技术进行加固。做法是：在原桥墩柱两侧新增桩基、承台、拱座安装钢管拱，在原桥梁梁底横向设置钢托梁，钢管拱上的吊索与托梁连接，对吊索进行张拉，按设计施加予应力，通过托梁传递向上应力，托住梁体起到加固作用。由于减轻了墩柱压力，对墩柱也起到加固作用。采用本发明技术加固，原桥交通可照常进行。
Technology for reinforcing concrete beam bridge by separated steel pipe arch pre-stress slings
分离式钢管拱予应力吊索加固混凝土梁式桥技术
XIANG RUXUE (author)
2020-05-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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