WO2018028041A1

WO2018028041A1 - Superimposedly assembled integral basement having combined flat slab system and beam-column system

Info

Publication number: WO2018028041A1
Application number: PCT/CN2016/101678
Authority: WO
Inventors: 张剑
Original assignee: 长沙远大住宅工业集团股份有限公司
Priority date: 2016-08-12
Filing date: 2016-10-10
Publication date: 2018-02-15
Also published as: CN106088318A

Abstract

A superimposedly assembled integral basement having combined flat slab system and beam-column system. The floor (1) of the basement is a full cast-in-situ concrete floor or a precast superimposed floor; and side walls of the basement are precast superimposed sandwich walls (2); several cast-in-situ columns (3) are provided in the middle of the basement, and are fixedly connected with column caps (4) and superimposed beams (11); the roof of the basement uses flat slabs; the flat slabs are integrally connected with the top parts of the precast superimposed sandwich walls (2) of the side walls and the column caps (4) of the cast-in-situ columns (3) by means of cast-in-situ; n negative floors of the basement use precast superimposed slabs, the precast superimposed slabs being integrally connected with the superimposed beams (11) on the cast-in-situ columns (3) by means of cast-in-situ. The basement can be constructed without templates on site, having the advantages of small earthwork volume, low cost, fast construction process, controllable quality, and no environmental pollution caused by the construction of the basement.

Description

Stacked assembly integral basement combined with beamless floor system and beam-column system

Technical field:

The invention belongs to the technical field of building engineering, and in particular relates to a stacked assembly integrated basement.

Background technique:

As we all know, the traditional building basement project uses all cast-in-place concrete structures, which requires the excavation of large underground foundation pits to ensure large-scale construction of on-site raw material stacking, concrete transportation, supporting, pouring, vibrating, curing, folding and so on. The operation space, therefore, the earthwork has a large amount of excavation and the backfilling amount is also large. Since all work is done on site, all wall panels and roof panels are equipped with formwork, and the formwork must be removed after the concrete has reached full strength. Therefore, the formwork and scaffolding are in great demand, the construction period is long, the labor is large, and all raw materials are It is transported to the site in bulk form, polluting the environment, causing waste of raw materials, high labor costs, and the manual vibration of concrete on-site pouring is difficult and demanding. If it is slightly vibrating, it will leave hidden water leakage. In addition, the quality of cast-in-place concrete is uncontrollable, the curing conditions are poor, and the possibility of micro-cracks in concrete is large. In the later stage, rainwater will leak through micro-cracks, which will affect the building quality.

Summary of the invention:

The technical problem to be solved by the present invention is to solve the above problems in the prior art, and to provide a superimposed and assembled integrated basement system combining a beamless floor covering system and a beam-column system, and fully utilizing the factory prefabrication quality and speed, High efficiency, good environmental performance, good cast-in-place integrity and high structural strength, overcome the shortcomings of the two, develop strengths and avoid weaknesses, realize no modular construction on site, small amount of earthwork, low labor cost and material cost, fast construction speed, quality Controllable, no environmental pollution, excellent technical performance.

The technical solution adopted by the invention is: a beamless floor covering system combined with a beam and column system The integrated basement is superimposed and assembled. The basement floor is a fully cast-in-place concrete floor or a prefabricated floor. The basement side wall is a prefabricated sandwich wall. There are several cast-in-place columns in the middle of the basement. The cast-in-place column is connected with a column cap and For the composite beam, the basement roof adopts the beamless floor cover, the top of the prefabricated sandwich wall without the beam floor and the side wall and the column cap on the cast-in-place column are integrated by cast-in-place; the negative n layer of the basement is prefabricated The slab is laminated, n is a natural number, and the prefabricated slab and the laminated beam on the cast-in-place column are integrally connected by cast-in-place.

In the above technical solution, the column cap is a laminated column cap, including a prefabricated column cap portion and a cast-in-place cap portion; the laminated beam includes a precast beam portion and a cast-in-situ beam portion.

In the above technical solution, the beamless floor cover comprises a beamless laminated hollow floor cover or a beamless laminated solid floor cover.

In the above technical solution, the beamless laminated hollow floor cover is composed of a plurality of prefabricated laminated floors, and each of the prefabricated laminated floors comprises a laminated floor prefabricated layer and a laminated floor cast-in-place layer, and the laminated floor is now The pouring layer is uniformly filled with a plurality of lightweight filling blocks or hollow boxes; the prefabricated laminated slabs between the two adjacent cast-in-place column caps are directly overlapped on the column caps at the two ends of the prefabricated floor slabs, and are connected The steel bars are constructed, and the jointed steel bars are connected with the prefabricated slabs and the prefabricated slabs; the cast-in-place caps of the column caps and the cast-in-place slabs of the prefabricated slabs are integrally joined together by cast-in-place concrete. .

In the above technical solution, the beamless laminated solid floor is composed of a plurality of prefabricated laminated floors, and each prefabricated floor slab comprises a laminated floor prefabricated layer and a laminated floor cast-in-place layer; two adjacent cast-in-place layers Prefabricated slabs between the column caps, the two ends of the prefabricated slabs of the slabs are directly lapped on the column caps and connected with structural steel bars; and the prefabricated slabs and the prefabricated slabs are connected with seam reinforcement bars. The cast-in-place cap portion of the cap is joined to the cast-in-place layer of the prefabricated slab by a cast-in-place concrete joint.

In the above technical solution, the prefabricated slabs used in the negative n-floor of the basement comprise prefabricated solid slabs or prefabricated laminated slabs.

In the above technical solution, the prefabricated solid floor slab comprises a laminated slab prefabricated layer and a laminated slab cast-in-place layer, and the prefabricated solid slab laminated slab prefabricated layer end overlaps the precast beam portion of the laminated beam And the jointed steel bar and/or the structural steel bar are connected, and the cast-in-place layer of the prefabricated solid floor slab and the cast-in-situ beam part of the laminated beam are integrally fixed by the cast-in-place concrete.

In the above technical solution, the prefabricated laminated hollow floor slab comprises a laminated floor prefabricated layer and a laminated floor cast-in-place layer, and the plurality of lightweight filling blocks or hollow boxes are uniformly filled in the cast-in-place layer of the laminated floor. The prefabricated layer end of the slab is overlapped on the prefabricated beam portion of the laminated beam, and the jointed steel bar and/or the structural steel bar are connected, and the cast-in-place layer of the prefabricated laminated hollow floor slab is combined with the cast-in-situ beam part of the laminated beam It is fixed by integral connection of cast-in-place concrete.

The superimposed and assembled integrated basement of the invention is prefabricated by a part of the factory, and a part of the cast-in-place is superposed on the site, and the advantage of the factory prefabrication quality, high speed, high efficiency, good on-site casting integrity and high structural strength is fully utilized, and the two are overcome. Disadvantages, strengths and weaknesses, changed the traditional cast-in-place basement with large amount of earthwork, difficult construction, high cost, long cycle, low efficiency, waste of raw materials, serious environmental pollution, and achieved no-template construction on site, small amount of earthwork, Low labor cost and material cost, fast construction speed, controllable quality, no environmental pollution, high quality and high efficiency, and excellent waterproof performance.

Taking the basement with an area of 10,431 m ² as an example, the traditional technical period is 40 days, the construction period of the invention is 10 days, the traditional technical workers are 156, the invention only needs 82 people, the amount of templates used is greatly reduced, the amount of scaffolding is also reduced, and manual measures are reduced. The masonry plaster is reduced, the construction speed is increased by four times, civilized construction and environmental protection performance are good. Taking the project cost as an example, the cost of formwork engineering is reduced by 100 yuan/m ² , the cost of cast-in-place steel and concrete works is reduced by 127 yuan/m ² , the cost of waterproofing works is reduced by 87/m ² , and the cost of masonry and plastering works is reduced by 29 yuan / m ² , the cost of scaffolding construction is reduced by 30 yuan/m ² , and the cost of other measures is reduced by 25 yuan/m ² . Therefore, the laminated assembled basement of the present invention reduces the construction cost by 398 yuan/m ² compared to the conventional construction basement.

The production of the invention is a flexible intelligent production line operation, high production efficiency and low cost, and the transportation of the invention is convenient, high-efficiency and low in cost; the construction of the invention is simple and easy to operate, the construction quality is controllable, the comprehensive cost is low, the appearance is smooth, and the waterproof Good performance and excellent overall quality.

BRIEF DESCRIPTION OF THE DRAWINGS:

Figure 1 is a schematic view of the overall structure of the present invention;

Figure 2 is a plan view of a beamless laminated hollow floor;

Figure 3 is a plan view of a solid frame without a beam;

Figure 4 is a schematic view showing the structure of a prefabricated laminated hollow floor;

Figure 5 is a schematic view showing the structure of a prefabricated solid floor slab.

LIST OF REFERENCE NUMERALS 1 - basement floor, 2 - prefabricated sandwich wall, 3 - cast-in-place column, 4 - column cap, 5 - laminated floor prefabricated layer, 6 - laminated floor cast-in-place layer, 7 - lightweight filling Block or hollow box, 8 - prefabricated column cap, 9 - cast-in-place cap, 10 - seam steel, 11 - laminated beam, 12 - truss.

detailed description:

Referring to Figures 1 to 5, the beamless floor covering system of the present invention is combined with the beam-column system to form a unitary basement, the basement floor is a fully cast-in-place concrete floor or a prefabricated floor, and the basement side wall is a prefabricated sandwich. In the middle of the wall, there are several cast-in-place columns in the middle of the basement. The upper joint is fixed with a column cap and a composite beam, the basement top plate adopts a beamless floor cover, the top of the prefabricated laminated sandwich wall of the beamless floor and the side wall and the column cap on the cast-in-place column are integrally connected by cast-in-place; The negative n-floor of the basement is made of prefabricated slabs, n is a natural number, and the prefabricated slabs and the superposed beams on the cast-in-place columns are integrally joined by cast-in-place, the column caps are superimposed column caps, including prefabricated column caps. a portion and a cast-in-place cap portion; the laminated beam comprising a precast beam portion and a cast-in-situ beam portion, the beamless floor covering comprising a beamless laminated hollow floor or a beamless laminated solid floor, The non-beam laminated hollow floor cover is composed of a plurality of prefabricated laminated slabs, each of which comprises a prefabricated slab prefabricated layer and a laminated slab cast-in-place layer, which is evenly filled in the cast-in-place layer of the laminated slab a lightweight filling block or a hollow box; a prefabricated slab between two adjacent cast-in-place column caps, the two ends of the prefabricated floor of the slab are directly lapped on the column cap, and the structural steel bars are connected, and the prefabricated superimposed Jointed steel bars are connected between the slab and the prefabricated slabs; The cap portion and the cast-in-place layer of the prefabricated slab together are integrally fixed by cast-in-place concrete, and the non-beam laminated solid floor is composed of a plurality of prefabricated slabs, each of which is prefabricated and slab The utility model comprises a laminated floor prefabricated layer and a laminated floor cast-in-place layer; a prefabricated laminated floor between two adjacent cast-in-place column caps, the two ends of the laminated floor prefabricated layer are directly overlapped on the column cap, and the structure is connected Reinforced steel; and the jointed steel slab is connected with the prefabricated slab; the cast-in-place cap portion of the cap and the cast-in-place slab of the prefabricated slab are integrally fixed by cast-in-place concrete. The prefabricated slab of the basement negative n layer comprises a prefabricated solid slab or a prefabricated slab, the prefabricated solid slab comprises a laminated slab prefabricated layer and a laminated slab cast-in-place layer, prefabricated superimposed The prefabricated layer ends of the laminated slabs of the solid slab are overlapped on the prefabricated beam portions of the laminated beams, and the jointed steel bars and/or structural steel bars are connected, and the laminated slabs of the prefabricated solid slabs are laminated with the cast-in-place layer and the laminated beams. Cast in place Portions integrally connected together by situ concrete The fixed prefabricated hollow floor slab comprises a prefabricated slab prefabricated layer and a laminated slab cast-in-place layer, and is uniformly filled with a plurality of lightweight filling blocks or hollow boxes in the cast-in-place layer of the laminated slab, and the prefabricated slab is prefabricated The end of the layer is overlapped on the prefabricated beam portion of the laminated beam, and the jointed steel bar and/or the structural steel bar are connected, and the cast-in-place layer of the prefabricated laminated hollow floor panel and the cast-in-situ beam portion of the laminated beam pass together The poured concrete is integrally connected and fixed.

Claims

A superimposed assembled integral basement system combining a beamless floor covering system and a beam-column system, characterized in that: the basement floor is a fully cast-in-place concrete floor or a prefabricated floor, the basement side wall is a prefabricated sandwich wall, and the basement is in the middle There are a number of cast-in-place columns. The cast-in-place column is fixed with a column cap and a laminated beam. The basement roof is made of a beamless floor, the prefabricated sandwich wall without the beam floor and the side wall and the column on the cast-in-place column. The caps are connected by integral casting; the negative n layer of the basement is made of prefabricated slabs, n is a natural number, and the prefabricated slabs and the superposed beams on the cast-in-situ columns are connected by cast-in-place.
The stacked base unit of the beamless floor covering system and the beam and column system according to claim 1, wherein the column cap is a laminated column cap, including a prefabricated column cap portion and a cast-in-place cap. The superposed beam includes a precast beam portion and a cast-in-situ beam portion.
The laminated base unit of the combination of the beamless floor system and the beam and column system according to claim 1, wherein the beamless floor cover comprises a beamless laminated hollow floor or a beamless laminated solid. Floor cover.
The laminated base unit of the beamless floor covering system and the beam-column system according to claim 3, wherein the beamless laminated hollow floor is composed of a plurality of prefabricated laminated floors, each piece The prefabricated laminated slab further comprises a prefabricated slab of prefabricated slabs and a cast-in-place slab of superposed slabs, which are uniformly filled with a plurality of lightweight filling blocks or hollow boxes in the cast-in-place layer of the slabs; The prefabricated slabs of the prefabricated slabs are directly lapped on the column caps at the two ends of the prefabricated slabs, and are connected with structural steel bars, and the jointed steel bars are connected between the prefabricated slabs and the prefabricated slabs; The cap portion and the cast-in-place layer of the prefabricated slab are fixed together by cast-in-place concrete.
The laminated base unit of the beamless floor covering system and the beam and column system according to claim 3, wherein the beamless laminated solid floor is composed of a plurality of prefabricated laminated floors, each piece The prefabricated laminated floor panel further comprises a laminated floor prefabricated layer and a laminated floor cast-in-place layer; the prefabricated laminated floor between the two adjacent cast-in-place column caps is directly overlapped on the column cap at both ends of the prefabricated floor of the laminated floor. And the structural steel bar is connected; and the jointed steel bar is connected with the prefabricated laminated floor board; the cast-in-place cap part of the column cap and the cast-in-place layer of the prefabricated laminated floor together pass through the cast-in-place concrete Connection fixed molding.
The stacked base unit of the beamless floor system and the beam and column system according to claim 1, wherein the prefabricated floor slab of the negative n layer of the basement comprises a prefabricated solid floor or prefabricated stack. Hollow floor slab.
The laminated base unit of the beamless floor covering system and the beam-column system according to claim 6, wherein the prefabricated solid floor slab comprises a laminated slab prefabricated layer and a laminated slab cast-in-place layer. The prefabricated layer of the prefabricated solid floor slab is overlapped with the prefabricated beam end of the laminated beam, and the jointed steel bar and/or the structural steel bar are connected, and the laminated floor slab of the prefabricated solid floor slab is The cast-in-situ beam portions of the laminated beams are integrally fixed together by cast-in-place concrete.
The laminated base unit of the beamless floor covering system and the beam-column system according to claim 6, wherein the prefabricated laminated hollow floor comprises a prefabricated floor slab and a cast-in-place slab. The plurality of lightweight filling blocks or hollow boxes are evenly filled in the cast-in-place layer of the laminated floor, and the prefabricated layer ends of the laminated floor are overlapped on the precast beam part of the laminated beam, and the joint reinforcing bars and/or structures are connected. The cast-in-place layer of the reinforced concrete, the prefabricated laminated hollow slab and the cast-in-situ beam of the laminated slab are integrally fixed by cast-in-place concrete.