Double-limit fixing device of multi-span simply supported beam bridge
A technology of limit-fixed, simply supported girder bridges, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of service life impact and high cost of simply supported girder bridges, and achieve guaranteed service life, good shock absorption, Guaranteed safe use
Inactive Publication Date: 2018-08-28
CHONGQING THREE GORGES UNIV
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Problems solved by technology
When constructing simply supported girder bridges across rivers in mountainous areas of Sichuan, it is inconvenient to build bridge piers in Hanoi due to the turbulent water flow. For example, the construction of Hanoi bridge piers will cost a lot, and the piers will be affected by earthquakes and river erosion, which will have a great impact on the service life of simply supported beam bridges. influences
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[0037] As attached to the manual figure 1 As shown, the present invention is a double limit fixing device for a multi-span simply supported girder bridge. 4. The simply supported beam bridge column 1, the simply supported beam section bridge 2, the simply supported beam middle bridge section 3 and the arched support bridge frame 4 are all reinforced concrete structures; bridge piers 5 are arranged on both sides of the river, and the simply supported beam bridge The bottom end of the column 1 is set on the pier seat 5, the top of the simply supported beam bridge column 1 is set up with a simply supported beam section bridge 2, and the simply supported beam middle bridge section 3 is arranged between the simply supported beam section bridges 2 on both banks. The bottoms on both sides of the arched support bridge frame 4 are also arranged on the pier bases 5 on both sides of the river; figure 2 As shown, the bottom of the simply supported beam middle bridge section 3 is provide...
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The invention discloses a double-limit fixing device of a multi-span simply supported beam bridge, and mainly relates to the technical field of bridges. The device comprises a simply supported beam bridge column, simply supported beam section bridges, a simply supported beam middle bridge section and an arched support bridge frame; bridge piers are arranged at the two banks of a river channel, andthe bottoms of the two sides of the arched support bridge frame are arranged on the bridge piers at the two banks of the river channel; the bottom of the simply supported beam middle bridge section is provided with a bottom deck, and a plurality of bridge shock absorbers are arranged between the simply supported beam middle bridge section and the simply supported beam section bridges at the two banks; the arched support bridge frame is arranged at the simply supported beam section bridges and the two sides of the simply supported beam middle bridge section and provided with a plurality of support cantilevers, the bottom of each support cantilever is provided with a support spanning plate, and the bottom deck of the bottom surface of the simply supported beam middle bridge section is arranged on the support spanning plates. The double-limit fixing device has the advantages that for the deck, the good shock absorbing function can be achieved; the good cushioning function is achieved when an earthquake occurs; moreover, bridge piers do not need to be built in a river, and the use safety and service life of the simply supported beam bridge are ensured.
Description
technical field [0001] The invention relates to the technical field of bridges, in particular to a double-position-limiting and fixing device for a multi-span simply supported girder bridge. Background technique [0002] Simply supported girder bridge is the earliest and most widely used bridge shape among girder bridges. Its structure is simple, it is convenient to erect, and the internal force of the structure is not affected by the deformation of the foundation and the change of temperature. However, the construction of simply supported beam bridges in the mountainous areas of Sichuan, my country is under great pressure, and various factors need to be considered comprehensively, among which the two most important factors are earthquakes and rivers. When constructing simply supported girder bridges across rivers in mountainous areas of Sichuan, it is inconvenient to build bridge piers in Hanoi due to the turbulent water flow. For example, the construction of Hanoi bridge ...
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IPC IPC(8): E01D1/00E01D19/00
CPCE01D1/00E01D19/00
Inventor 刘芳平程龙飞闫磊周逸刘路
Owner CHONGQING THREE GORGES UNIV