In-situ casting construction method of reinforced concrete structural system using phosphogypsum as wall material

Abstract

The invention discloses a cast-in-situ construction method for a reinforced concrete structural system taking phosphogypsum as a wall body material. When construction is performed on a reinforced concrete structural system building, the phosphogypsum is used as the wall body material, the reinforced concrete structural system and phosphogypsum wall bodies are cast in situ. When the reinforced concrete structural system and the phosphogypsum wall bodies are cast in situ, the reinforced concrete structural system is cast in four sections according to floor layers; the height of each section is controlled within 600 to 1,300 millimeters; the cast-in-situ construction is performed in layers and sections from the top to bottom; the reinforced concrete structural system is cast first at each section; and then the phosphogypsum wall body part is cast. The construction method has the advantages of easy construction, fast construction progress, good construction quality and low construction cost. In addition, the integrity and strength of buildings completed by the construction method are improved.

Description

technical field [0001] The invention relates to an on-site pouring construction method of a reinforced concrete structure system using phosphogypsum as a wall material, and belongs to the technical field of building construction. Background technique [0002] At present, the construction method of using phosphogypsum or gypsum as wall material in the prior art generally all is to first make phosphogypsum or gypsum into a model of a gypsum cavity slab, and then after the model is installed on the construction site, it will Reinforced concrete is poured into the large slab of the cavity to form a vertical load-bearing wall system. This technical solution requires too high a degree of mechanization and industrialization, resulting in high cost, and its fatal weakness is that its shear rigidity is too poor. It is used for reinforced concrete buildings with (1~6) floors, and it is a small bay (3.6m~3.9m), and the height of the cavity slab is more than 3m. When pouring concrete, i...

AI Technical Summary

Problems solved by technology

[0002] At present, the construction method of using phosphogypsum or gypsum as wall material in the prior art generally all is to first make phosphogypsum or gypsum into a model of a gypsum cavity slab, and then after the model is installed on the construction site, it will Reinforced concrete is poured into the large slab of the cavity to form a vertical load-bearing wall system. This technical solution requires too high a degree of mechanization and industrialization, resulting in high cost, and its fatal weakness is that its shear rigidity is too poor. It is used for reinforced concrete buildings with (1~6) floors, and it is a small bay (3.6m~3.9m), and the height of the cavity slab is more than 3m. When pouring concrete, if it is not clamped outside the two sides of the gypsum cavity slab Formwork, the lateral pressure of concrete will damage the gypsum cavity slab

On this basis, the Chinese patent literature once disclosed a technical solution with the title of invention: "Reinforced Concrete Shear Wall with Ribbed Grid and Its Manufacturing Method" and the patent number: ZL200610200093.8, which overcomes the above-mentioned problems. Disadvantages, the prefabricated gypsum cavity block is small, light in weight, and after the shear rigidity is greatly improved, it can build (1-25) high-rise residential buildings with large bays and flexible division of living rooms, but there are still some shortcomings in the use of small prefabricated cavity gypsum formwork. Ideally, firstly, the gypsum side panels of the concrete beams poured on both sides of the upper part of the prefabricated cavity formwork are easily broken during transportation, resulting in loss of the formwork; secondly, the formwork has various specifications (4-6), Bolts are used to connect each other to form the overall formwork, but the gypsum joints still exist, which increases materials and man-hours, and the whole is not very good; third, although the height of the formwork is only the height of the gypsum cavity large slab formwork 1 / 4 to 1 / 5 of that, but when pouring concrete, it is still necessary to add side forms on both sides to prevent the side pressure of pouring concrete from cracking the formwork, that is, the prefabricated plaster formwork cannot completely replace the conventional side forms when pouring concrete. template, which is determined by the existing phosphogypsum strength (Mu7)

Therefore, the existing construction method of reinforced concrete buildings with phosphogypsum as wall material is still not ideal enough, and still cannot meet the needs of production and society.

Images