A prefabricated T-beam secondary prestressed steel strand tension support and method

Abstract

The invention relates to an extension bracket of second-stage prestressed steel strand of prefabricated T-shaped beam and a method thereof, and belongs to the technical field of bridge construction. The extension bracket comprises a movable bracket and an extension system, wherein the movable bracket comprises a pillar, and the lower end of the pillar is connected with a movable wheel; the upper end of the pillar is connected with a support frame for supporting the extension system including a chain hoist, and the tail end of the chain hoist is connected with a transverse beam II; one end of the transverse beam II is connected with an extension jack, and the other end of the transverse beam II is connected with a counterweight block. According to the extension bracket of second-stage prestressed steel strand of prefabricated T-shaped beam and a method thereof, the movable bracket which can walk on the top of a beam and hang an extension device is designed, so that the separation of personnel and equipment and the arrangement of the personnel and the equipment not on the same bracket can be achieved, and the bracket and the extension device can move quickly; meanwhile, the labor intensity is reduced, security risks are eliminated to the maximum extent, and the construction efficiency is improved; besides, the construction period is shortened, the construction costs are reduced, and the economic benefit is improved.

Description

technical field [0001] The invention relates to a prefabricated T-beam second-stage prestressed steel strand tension support and a method thereof, which belong to the technical field of bridge construction, and are especially suitable for building continuous beam bridges using simply supported beam construction techniques. Background technique [0002] In the construction process of the bridge superstructure, the simply supported first and then the continuous structure system is simple and feasible, and the construction quality is reliable, which can realize the factoryization, standardization and assembly of bridge construction, and can achieve the construction of continuous beam bridges using simply supported beam construction technology It has become an important bridge type in modern traffic engineering. Among them, the second stage of prestressed steel strand tensioning is the key process of simply supported to continuous construction, which directly affects the durabil...

AI Technical Summary

Problems solved by technology

However, this method has the following defects: one, the support adopts a suspension type, and personnel and equipment are all placed on the support, which has a large potential safety hazard; two, the support and equipment are difficult to move and operate, and the work efficiency is low, which affects the follow-up process and increases the construction cost. Cost; 3. This process prolongs the construction time, which is not conducive to the control of the construction period

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