Construction method for foundation connecting joint of steel pipe column of fabricated bailey truss

Abstract

The invention discloses a construction method for a foundation connecting joint of a steel pipe column of a fabricated bailey truss. The construction method comprises the steps that A, a first steel plate is arranged in a foundation pouring and pre-burying mode, and a center hole with the outer diameter of a steel pipe as the diameter is cut in the middle of a second steel plate; B, foundation steel bars are bound, the first steel plate is welded into the foundation steel bars through connecting bars, and a prefabricated foundation is placed on the horizontal ground; C, concrete is poured intothe first steel plate; D, the second steel plate with the center hole pre-formed in the step A is welded to the steel pipe column, and the steel pipe column is sleeved with the center hole of the second steel plate; E, the two axes of the first steel plate pre-buried in the foundation are found, and a vertical steel plate is additionally arranged on the outer side wall of the steel pipe column; and F, the steel pipe column is hoisted through a crane, mounted to a socket and stably combined with the socket, and thus mounting is completed. According to the construction method, the purposes thatmounting is convenient, recycling can be achieved, damage to the steel pipe is small, perpendicularity control is good, and construction is safer are achieved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for a steel pipe column foundation connection node of an assembled Bailey frame. Background technique [0002] During the construction of municipal bridges, there are pier columns and cover beams at certain intervals in the bridge project. During the construction of cover beams and box girders, due to the site constraints in the city, the use of full hall supports cannot meet the requirements of multiple-face operations. Steel pipe shells are used. In the construction of the mine frame, the material can be transported between the steel pipes, and multiple working faces can be operated at the same time, which makes the mine frame have unique advantages. When pouring concrete, the load is transmitted to the steel pipe through the Bailey frame, and then to the foundation. The stability of the joint between the steel pipe and the foundation, the ve...

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Problems solved by technology

There are the following defects: 1) It is necessary to suspend the steel pipe in the air for a long time with the help of a crane, and then carry out butt welding with the steel pipe reserved for the foundation, which takes a long time to construct and is difficult to locate in the air; 2) repeated cutting of the steel pipe causes waste of materials, The damage to the steel pipe is great, and the welding quality plays an important role in the safety of the structure. The butt welding in the air is difficult and the quality is difficult to guarantee; 3) It is difficult to guarantee the verticality of the butt joint length of the steel pipe and the steel pipe, which has a certain impact on the stress safety of the structural system

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