Construction method of prefabricated assembly type inter-pile tie beam

Abstract

The invention discloses a construction method of a prefabricated assembly type inter-pile tie beam. The construction method comprises the steps of tie beam prefabrication, formwork support, tie beam placement, steel bar binding and formwork concrete pouring. A mode of hoisting the prefabricated tie beam is adopted to enable the prefabricated tie beam to penetrate into pile structures in a staggered mode, the prefabricated tie beam is supported through first supporting formworks which are arranged on the opposite inner sides of the adjacent pile structures at equal heights correspondingly, thenreinforcing steel bars are bound, the supporting formworks are perfected for cast-in-place construction, and connection of the tie beam and piles is completed. A cast-in-place and prefabrication combined mode is adopted for connecting the piles and the tie beam, investment of the supporting formwork is reduced, and the bridge construction quality, especially the appearance quality and the structural quality of bridge in-pile tie beam sections, is effectively improved under the condition that the design size of an original structure is not changed and the steel bar structure of the original structure is not changed, Wide application prospects are realized in the urban bridge construction, and the industrial development of buildings can be effectively promoted.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method of a prefabricated assembly type inter-column tie beam. Background technique [0002] The tie beam refers to the beam that acts as a tie rod, which is set between two piles or pier columns, and connects the two piles or pier columns to form a whole force, so as to improve the structure of the columns and piles, and make the pile or pier column The overall rigidity is strengthened. The tie beam set between the two pier columns is the inter-column tie beam, also known as the waist tie beam. At present, the beams between columns are all cast-in-place schemes, which mainly use artificial binding of steel bars and cast-in-place concrete on the formwork. It has high safety performance and good integrity. The quality is not easy to control and the construction period is long, which has a great impact on urban traffic. Moreover, because the tie beam i...

AI Technical Summary

Problems solved by technology

However, this construction method adds a built-in hidden flange as the connection structure on the basis of the original design. The installation is complicated and requires high precision, which increases the project cost; The plate is effectively connected, and the excess part is equivalent to the extra self-weight, which increases the bearing burden of the lower pier column structure, and makes the stress act on the joint of the flange plate, resulting in a certain safety hazard in the overall structure

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