Construction method utilizing steel-strand strand pulling machine to perform fast strand pulling during construction of prestress structures

Abstract

The invention discloses a construction method utilizing a steel-strand strand pulling machine to perform fast strand pulling during construction of prestress structures, which belongs to the technical field of building construction. The steel-strand strand pulling machine is provided with two pairs of pressing wheels capable of clamping steel strands to advance or retreat are arranged at intervals. The steps are that fixing the steel-strand strand pulling machine on a movable strand pulling platform through a pull piece in suspension mode, cleaning mortar on a mortar filling port of an anchorbacking plate on an opening of a prestress hole passage, then connecting the steel-strand strand pulling machine with the prestress hole passage to be strand-pulled, further utilizing the steel-strand strand pulling machine to enable the steel strands to be strand-pulled according to numbers till the steel strands reach predetermined positions, utilizing a cutting device to cut off the steel strands, and accordingly the strand pulling work of one steel strand is completed. Repeating the steps till the strand pulling work of all the steel strands of the prestress hole passage is completed, andthe steel strands are automatically bundled according to stacking mode after cut from bottom to top. The construction method utilizing the steel-strand strand pulling machine to perform fast strand pulling during construction of prestress structures integrates fast blanking, fast bundling and fast stand-pulling into a whole, thereby being convenient to operate and fast and efficient in strand-pulling construction.

Description

technical field [0001] The invention relates to a construction method for rapid beam penetration in prestressed engineering construction, and belongs to the technical field of building construction. Background technique [0002] Prestressed structures are widely used in the construction field, such as bridges, long-span structures and other buildings, which are the main stress-bearing components. In the construction process, the correct and rapid cutting, threading and braiding construction of prestressed steel strands are particularly important for quality control. At present, in the prestressed construction of engineering such as transportation and construction, the beam threading construction of prestressed steel strands is mostly carried out manually, or manually with hoists or early inefficient beam threading machines for traction and threading, and the construction The process is divided into three construction processes: blanking, braiding, and threading. The constru...

AI Technical Summary

Problems solved by technology

At present, in the prestressed construction of engineering such as transportation and construction, the beam threading construction of prestressed steel strands is mostly carried out manually, or manually with hoists or early inefficient beam threading machines for traction and threading, and the construction The process is divided into three construction processes: blanking, braiding, and threading. The construction speed is slow, the operation is time-consuming, consumes a lot of manpower and material resources, the cost is high, and the work efficiency is low. After the steel strands are threaded, they cannot fully meet the braiding requirements. And it is necessary to unload the steel strand in advance; in addition, when the early threading machine is used for traction threading, because the early threading machine has a coil of wire after threading, there will be a section of tail that cannot be advanced and needs to be cut off. Thus causing waste, which is not conducive to reducing construction costs

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