One-sided template supporting system and construction method for concreting external wall by using one-sided template supporting system

Abstract

The invention discloses a one-sided template supporting system and a construction method for concreting an external wall by using the one-sided template supporting system. The one-sided template supporting system is arranged on one side of a slope protection pile, and comprises an initial-segment template supporting system and an extension-segment template supporting system arranged above the initial-segment template supporting system, wherein the initial-segment template supporting system is arranged on a basic baseplate, and comprises a first fastening part, a supporting part and a ground anchor; the supporting part is arranged on the outer side surface of the first fastening part; the ground anchor is pre-buried in the basic baseplate; the extension-segment template supporting system comprises at least one second fastening part; a vertical L-shaped anchor pulling rib comprises a short-edge anchor pulling rib and a long-edge anchor pulling rib; the short-edge anchor pulling rib is pre-buried in a concrete layer in the initial-segment template supporting system; the long-edge anchor pulling rib penetrates out of the space between two vertical back braces; and the tail of the long-edge anchor pulling rib is subjected to threading treatment as well as tightened and fixed through a nut. The one-sided template supporting system has the beneficial effects that the operability is high; the wall construction can be well completed when the conditions of template supporting are met on only one side; the universality is relatively high; and no situations such as template swelling, grout leakage, temperature displacement and the like are found during the implementation process.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a single-side formwork system and a construction method for pouring exterior walls using the system. Background technique [0002] With the vigorous development of my country's construction industry, the construction land in the city is becoming increasingly tense. It is often encountered that the basement exterior walls cannot use conventional two-sided formwork due to various reasons. [0003] The project is located in a university campus. The support structure on the northwest side of the project is a permanent retaining structure, which bears active earth pressure with the main structure outer wall and beam-slab structure. The thickness of the outer wall of the basement is 800mm, and the elevation of the top of the foundation floor structure is -9.8m. The net dimensions of the outer wall of the basement and the waterproof guide wall outside the supporting pile...

AI Technical Summary

Problems solved by technology

The net dimensions of the outer wall of the basement and the waterproof guide wall outside the supporting pile coincide, and it is not possible to use the traditional double-sided formwork system to complete the construction

Moreover, the construction environment is poor, and the conditions for supporting formwork are not met, which often leads to delays in the construction period, high construction costs, and serious safety hazards during the construction process.

[0004] The specific problems of this project are as follows: First, the basement wall is thick and the storey height is high, and the lateral pressure generated during the concrete pouring process is relatively large, so the formwork support system must have sufficient strength, rigidity and stability;

[0005] Second, there is no space between the outer wall and the enclosure, and the waterproof layer on the outer side of the outer wall is not allowed to penetrate, resulting in the reinforcement system completely relying on single-sided diagonal braces or opposite braces, with many uncertain factors;

[0006] Third, the municipal sewage and other pipes outside the foundation pit are old, and the water seepage is relatively serious. The anti-seepage requirements of the external wall are relatively high. The horizontal construction joints of the external wall are generally left at a height of 300mm from the bottom (floor) slab. The beam and slab concrete are integrally poured. If the external wall formwork system is unstable, the beam and slab formwork system will collapse. Therefore, it is necessary to pour the construction in sections, and leave a water-proof steel plate at the construction joint position of each section.

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