A design and construction method for fully prefabricated longitudinal and horizontal beams of high-piled wharf

Abstract

The invention discloses a fully prefabricated design and construction method for longitudinal and horizontal beams of high-pile wharfs, comprising: step 1, after the construction of pile caps, cutting off the top-layer steel bars of the longitudinal and horizontal beams to be installed, and bending the waist reinforcement plates of the longitudinal and horizontal beams to 90° ; Step 2, erecting the longitudinal beams and prefabricated slabs respectively; Step 3, straightening the waist reinforcement boards of the longitudinal beams, and using wire binding devices to bind the bottom reinforcement and waist reinforcements of the longitudinal beams sequentially from bottom to top; The cast-in-place layer directly above is equipped with reinforcing steel bars, which are parallel to the top layer of steel bars; Step 5, synchronously bind the reinforcing steel bars and the steel bars of the cast-in-place layer, and install the side formwork of the cast-in-place layer; The joints and the cast-in-place surface layer shall be poured with concrete, and the surface shall be closed after curing. The invention adopts the method of removing the steel bar on the top layer of the prefabricated beam and reinforcing it at the cast-in-place layer, so as to realize the rapid installation of the prefabricated longitudinal beam of the wharf, and ensure the stability of the installation of the prefabricated longitudinal beam while improving the construction efficiency.

Description

Technical field [0001] The present invention relates to a structural design and construction field of a dock. More specifically, the present invention relates to a prefabricated design construction method of high pile tunnel vertical and horizontal beam. Background technique [0002] In the construction of the terminal, a big trend is to increase the amount of prefabricated structure as much as possible. The prefabricated structural construction has the advantages of safer, high quality, low cost, low cost, environmental pollution, can be synchronized with the pile foundation construction, thereby reducing the upper structure construction period of the pile foundation after the pile foundation. However, traditional design construction generally uses longitudinal beam prefabricated and beam casting processes to ensure that the vertical and horizontal beam nodes are easy to install; but will consume more time on the beam template, tied up the steel and water concrete. It is difficu...

AI Technical Summary

Problems solved by technology

However, the traditional design and construction generally adopts the process of prefabricating longitudinal beams and casting in-situ beams to ensure easy installation at the joints of longitudinal and beams; It is difficult to meet the increasingly tight project schedule requirements

[0003] In order to solve the above problems, when the full prefabrication design method of longitudinal and horizontal beams is adopted, welding connection of the steel bars at the joints can be considered, but the welding work is relatively large, and the procedures are relatively cumbersome, the construction progress is slow, and the cost is high; if binding design, steel bars need to be straightened after plate bending, although the construction speed is faster, but it is difficult to plate bend the thicker main bars on the top layer of prefabricated beams

Images