High pier continuous beam side span cast-in-place section and closed section integrated construction system and construction method

Abstract

The invention relates to the technical field of building construction, in particular to a high pier continuous beam side span cast-in-place section and closure section integrated construction system and construction method, the construction method comprises the following steps of: construction preparation; construction monitoring calculation analysis; cantilever construction to the closure sectionand bridge approach construction; basket forward movement and basket platform reconstruction; pre-pressing; side span cast-in-place section construction; side span cast-in-place section construction;side span closure section construction; side span closure section tensioning; and lifting platform system dismantling. Compared with a prior method, the method effectively solves the problem of highpier support erection, avoids a large number of support erection construction, adopts the stress of the hanging system of the hanging basket, has simple construction technology, reduces the use amountof materials, reduces the use of large-scale hoisting equipment, has the obvious advantages of cost saving, construction period saving, better technical economy and the like aiming at the work of possibly prior support treatment and the like, avoids the prior construction support erection, avoids the work of a large number of basic treatment and the like, and has obvious construction period saving.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for an integrated construction system of a side-span cast-in-place section and a closing section of a continuous girder of a high pier, which is suitable for the construction of the side-span cast-in-place section and the closing section without support for hanging basket cantilever construction. Background technique [0002] With the continuous and rapid advancement of my country's infrastructure construction, a large number of bridge projects have emerged, and the long-span continuous beam bridge is one of the main bridge forms at present. For this type of bridge, prefabricated beam structures are usually used in the non-main spans, and continuous beams are used in the main spans, and hanging baskets are used for cantilevered construction. Hanging basket construction is very common in the construction of continuous beam side span closing sect...

AI Technical Summary

Problems solved by technology

However, the pier column is high, it is difficult to erect the support, it is difficult to hoist, and the stability of the slender support becomes poor, and more materials need to be added

At the same time, it is difficult to erect the support, and there are foundation treatment problems, increased costs and longer construction periods.

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