Integral construction method for prefabricated column pier and post-cast strip foundation beam assembly

Abstract

The invention discloses an integral construction method for assembling a prefabricated column pier and a post-cast strip-shaped foundation beam, comprising a prefabricated column pier and a post-cast strip-shaped foundation beam. The first joint steel bar of the force steel bar, the second joint steel bar and the third joint steel bar extending from the side of the prefabricated column pier for connecting the longitudinal stress steel bar of the post-casting strip-shaped foundation beam rib beam and the distribution steel bar of the wing plate; The prefabricated column pier is placed at the predetermined column position, the extension of the first steel bar joint and the frame structure construction of the first structural layer are carried out, and the second joint steel bar and the third joint steel bar of the prefabricated column pier are timely and synchronously constructed during the superstructure construction. After extending and pouring the concrete, the strip-shaped foundation beam is poured and the structure is further extended upward; the present invention uses the post-cast strip-shaped foundation beam to form a cross-strip foundation with high spatial rigidity and bear the self-weight and construction load of the continuously extending upward structure, thereby To achieve the purpose of saving time.

Description

Technical field [0001] The present invention relates to the field of building construction, in particular suitable for a prefabricated column pier and a post-cast strip foundation beam assembly integral construction method for unattended basements. Background [0002] A bar foundation under a column is a reinforced concrete strip foundation arranged in one or both directions, also known as a beam foundation or foundation beam. Its cross-section consists of a ribbed beam and a wing plate that extends horizontally outward. Because the ribbed beam beam height is relatively large and a certain number of longitudinal stress reinforcement bars and stirrups are configured, and the bottom of the wing plate is provided with transverse bending reinforcement and wing plate distribution steel reinforcement, it has a large shear, bending and impact cutting ability, so it is often used in the case of large load and small bearing capacity of the foundation, such as the frame or row frame struct...

AI Technical Summary

Problems solved by technology

[0004] In order to ensure the reliability of foundation engineering and superstructure, except for some pile foundations (including prefabricated wooden piles, steel pipe piles, prefabricated concrete pipe piles and prefabricated concrete square piles, etc.) In addition to being transported to the construction site for construction, most of the reinforced concrete foundations are constructed on the construction site with reinforcement binding and cast-in-place concrete. The superstructure can only be constructed after the strength of the foundation concrete reaches the predetermined strength. And maintenance time is longer, so it is not conducive to achieve the purpose of shortening the construction period

[0005] In view of the following shortcomings of the commonly used cast-in-place reinforced concrete foundations (especially strip foundations) in foreign countries: ①The construction of reinforced concrete foundations on the construction site requires a long period of maintenance, which is not conducive to shortening the construction period. Immediately bear the self-weight and construction load of the continuously extending building structure, so it cannot work in parallel with the construction of the superstructure; ②The construction of the on-site foundation project requires more formwork and a large number of construction workers, which is not conducive to the realization of rapid installation of building industrialization; ③ The construction of foundation works is carried out in the open air, is affected by weather and natural environment bigger, easily prolongs the construction period because of weather reason; Such as publication number is the strip foundation under the column of CN210946872U and publication number is the method for a kind of strip foundation local reinforcement of CN110080264A The above problems exist in both

In order to solve the above problems, the present invention provides an integral construction method for the assembly of prefabricated column piers and post-cast strip foundation beams to solve the problem of slow construction progress and long construction period

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