Reinforcement Method of Adding New Arch Ring Under Main Arch Ring of Old Stone Arch Bridge

Abstract

The invention discloses a reinforcement method for adding a new arch ring under the main arch ring of an old stone arch bridge. The invention improves the bearing capacity of the bridge by installing the new arch ring under the bridge, improves the bearing capacity of the bridge, and ensures the safety of the structure. The construction process is simple, the construction is convenient, and the reinforcement effect is good. In order to reduce the impact on the clear space under the bridge, the river channel under the bridge was repaired, the river bed was paved, and the arch ring was newly built under the old stone arch bridge. Compared with the demolition and reconstruction, the project scale was effectively reduced, and the construction speed was fast, reducing The amount and difficulty of construction, cost saving, shortening the construction work, reducing the impact on the old structure, retaining the unique style of the stone arch bridge, has little impact on the traffic on the bridge deck, and the opening equipment can meet the old arch rings or arches of different heights and radians. The opening of the foundation side wall is carried out, and at the same time, the negative pressure suction cup is used to cooperate with the adsorption to improve the stability of the entire opening equipment when opening the hole. At the same time, two openings are completed at the same time, and the spacing of the openings is convenient to adjust.

Description

technical field [0001] The invention relates to the technical field of stone arch bridge construction, in particular to a reinforcement method for adding a new arch ring under the main arch ring of an old stone arch bridge. Background technique [0002] Stone arch bridges have the advantages of beautiful shape, convenient materials, low cost and maintenance costs, and simple construction. In the 1960s and 1970s, a large number of stone arch bridges were built in my country. With the increase of the service life and the increase of transportation demand, the number of overloaded and oversized vehicles increases, and the stone arch bridge diseases continue to increase, which makes the bearing capacity of the stone arch bridge insufficient and cannot continue to meet the traffic requirements. [0003] In response to the above situation, there are currently two main solutions, one is demolition and reconstruction, and the other is reinforcement and reconstruction. If it is demo...

AI Technical Summary

Problems solved by technology

If it is demolished and rebuilt, the amount of work will be large, and the traffic will be affected. The cost of the project will be high, and it will also destroy the historical and cultural witnesses.

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