阅读说明：本技术 一种双层结构楼板及其施工方法 (Double-layer structure floor slab and construction method thereof ) 是由 崔伯臻 刘月兴 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种双层结构楼板及其施工方法,属于建筑工程技术领域,包括上层结构板、下层结构板、在上层结构板和下层结构板的左右两侧相对设置的板边结构梁；上层结构板和下层结构板固定在两侧板边结构梁的下端之间,下层结构板的底面与板边结构梁的底面平齐,上层结构板的顶面低于板边结构梁的顶面；上层结构板的底面与下层结构板的顶面之间填充有聚苯板；上层结构板、下层和板边结构梁均为钢筋混凝土结构,下层结构板的混凝土与板边结构梁下部的混凝土为先浇混凝土,上层结构板的混凝土与板边结构梁上部的混凝土为后浇混凝土。采用聚苯板作为填充材料及上层混凝土的模板,对下层结构净高影响小,施工简便。(The invention discloses a double-layer structure floor slab and a construction method thereof, belonging to the technical field of building engineering and comprising an upper-layer structure slab, a lower-layer structure slab and plate edge structure beams which are oppositely arranged at the left side and the right side of the upper-layer structure slab and the lower-layer structure slab; the upper layer structural plate and the lower layer structural plate are fixed between the lower ends of the two side plate edge structural beams, the bottom surface of the lower layer structural plate is flush with the bottom surface of the plate edge structural beam, and the top surface of the upper layer structural plate is lower than the top surface of the plate edge structural beam; a polystyrene board is filled between the bottom surface of the upper layer structural plate and the top surface of the lower layer structural plate; the upper structure plate, the lower layer and the plate edge structure beam are all of a reinforced concrete structure, the concrete of the lower structure plate and the concrete of the lower part of the plate edge structure beam are cast-in-advance concrete, and the concrete of the upper structure plate and the concrete of the upper part of the plate edge structure beam are cast-in-post concrete. The polystyrene board is used as a filling material and a formwork of upper concrete, so that the influence on the net height of a lower layer structure is small, and the construction is simple and convenient.)

1. A floor slab with a double-layer structure is characterized by comprising an upper-layer structural slab, a lower-layer structural slab and slab edge structural beams which are oppositely arranged at the left side and the right side of the upper-layer structural slab and the lower-layer structural slab; the upper layer structural plate and the lower layer structural plate are fixed between the lower ends of the two side plate edge structural beams, the bottom surface of the lower layer structural plate is flush with the bottom surface of the plate edge structural beam, and the top surface of the upper layer structural plate is lower than the top surface of the plate edge structural beam; a polystyrene board is filled between the bottom surface of the upper layer structural plate and the top surface of the lower layer structural plate; the upper structure plate, the lower layer and the plate edge structure beam are all of a reinforced concrete structure, the concrete of the lower structure plate and the concrete of the lower part of the plate edge structure beam are cast-in-advance concrete, and the concrete of the upper structure plate and the concrete of the upper part of the plate edge structure beam are cast-in-post concrete.

2. A dual-layer structural floor slab as claimed in claim 1, wherein the top surface of the precast concrete of the lower portion of the slab-side structural beams is flush with the top surface of the lower structural slab.

3. A dual-layer structural floor slab as claimed in claim 1, wherein the slab-side structural beams on both sides are inverted L-shaped with the open ends facing away from each other.

4. A dual-layer structural floor slab as claimed in claim 1, wherein the thickness of each of the upper and lower structural slabs is less than the distance between the top surface of the upper structural slab and the top surface of the slab-side structural beams.

5. A construction method of a double-deck structural floor slab as claimed in any one of claims 1 to 4, comprising the steps of:

s1, binding steel bars of a lower-layer structural plate and a plate edge structural beam;

s2, pouring concrete of the lower-layer structural slab and concrete at the lower part of the slab edge structural beam;

s3, paving a polystyrene board on the lower-layer structural board;

s4, binding steel bars of the upper-layer structural plate above the polystyrene board;

and S5, pouring concrete of the upper-layer structural slab and concrete at the upper part of the slab edge structural beam.

6. The method of constructing a floor slab having a double structure according to claim 5, wherein the polystyrene board is laid after the initial setting of the concrete of the lower structural slab is achieved in step S3.

Technical Field

The invention belongs to the technical field of constructional engineering, and particularly relates to a double-layer structure floor slab and a construction method thereof.

Background

In the design and construction of a concrete structure, due to various reasons, the condition that a double-layer structure floor slab needs to be made is often met, a space of about 400mm is reserved in the middle of the double-layer structure floor slab in a general processing scheme, the space is used for supporting a formwork of an upper-layer floor slab, and after a lower-layer floor slab is constructed, the formwork of the upper-layer floor slab, steel bars are bound, concrete is poured and the like. Above conventional processing scheme leads to the template system of upper floor to be difficult to demolish, and the construction is troublesome, also has certain influence to the use of later stage structure, and is great to the clear high influence of structure of lower floor.

Disclosure of Invention

The invention aims to provide a double-layer structure floor slab and a construction method thereof, and aims to solve the problem that the construction is influenced because a template system of an upper layer floor slab in the double-layer floor slab is difficult to remove.

In order to realize the purpose of the invention, the technical scheme is as follows: a floor slab with a double-layer structure comprises an upper-layer structural slab, a lower-layer structural slab and slab edge structural beams which are oppositely arranged on the left side and the right side of the upper-layer structural slab and the lower-layer structural slab; the upper layer structural plate and the lower layer structural plate are fixed between the lower ends of the two side plate edge structural beams, the bottom surface of the lower layer structural plate is flush with the bottom surface of the plate edge structural beam, and the top surface of the upper layer structural plate is lower than the top surface of the plate edge structural beam; a polystyrene board is filled between the bottom surface of the upper layer structural plate and the top surface of the lower layer structural plate; the upper structure plate, the lower layer and the plate edge structure beam are all of a reinforced concrete structure, the concrete of the lower structure plate and the concrete of the lower part of the plate edge structure beam are cast-in-advance concrete, and the concrete of the upper structure plate and the concrete of the upper part of the plate edge structure beam are cast-in-post concrete.

As a further alternative, the top surface of the precast concrete of the lower portion of the slab edge structural beam is flush with the top surface of the lower structural slab.

As a further alternative, the panel edge structural beams on both sides are in the shape of inverted L with the openings facing away from each other.

As a further alternative, the thickness of each of the upper and lower structural plates is less than the distance between the top surface of the upper structural plate and the top surface of the plate edge structural beam.

The invention also provides a construction method of the double-layer structure floor slab, which comprises the following steps:

s1, binding steel bars of a lower-layer structural plate and a plate edge structural beam;

s2, pouring concrete of the lower-layer structural slab and concrete at the lower part of the slab edge structural beam;

s3, paving a polystyrene board on the lower-layer structural board;

s4, binding steel bars of the upper-layer structural plate above the polystyrene board;

and S5, pouring concrete of the upper-layer structural slab and concrete at the upper part of the slab edge structural beam.

As a further alternative, in step S3, after the concrete of the lower structural slab reaches initial setting, polystyrene boards are laid.

The invention has the beneficial effects that: the polyphenyl board is used as filling material and is used as a template of upper-layer structural board concrete, the structure of a double-layer structural floor slab and a simplified method are provided, the polyphenyl board is used as a filling material and a template of the upper-layer structural board concrete, the conventional construction of a wooden template at the position can be cancelled, the space height of the position can be less than 200mm, the influence on the net height of a lower-layer structure is small, the problems that the template system of the conventional construction structure is complex and difficult to remove are solved, the floor slab structure is simple and convenient to construct, economical and saving, and the influence on the net height of the lower-layer structure is small.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it should be understood that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a sectional view of a floor slab having a double-layer structure according to an embodiment of the present invention;

reference numerals: 1-upper layer structural slab, 2-lower layer structural slab, 3-slab edge structural beam, 4-polystyrene board, 5-cast-in-advance concrete and 6-cast-in-advance concrete.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The invention is further described with reference to the following figures and specific embodiments.

Fig. 1 shows a cross-sectional view of a double-layer structural floor slab provided by the invention, which comprises an upper-layer structural slab 1, a lower-layer structural slab 2, and slab edge structural beams 3 arranged on the left and right sides of the upper-layer structural slab 1 and the lower-layer structural slab 2 oppositely; the upper-layer structural plate 1 and the lower-layer structural plate 2 are fixed between the lower ends of the two side plate edge structural beams 3, the bottom surface of the lower-layer structural plate 2 is flush with the bottom surface of the plate edge structural beam 3, and the top surface of the upper-layer structural plate 1 is lower than the top surface of the plate edge structural beam 3; a polystyrene board 4 is filled between the bottom surface of the upper layer structural plate 1 and the top surface of the lower layer structural plate 2; the upper structure board 1, the lower floor and the plate edge structure beam 3 are all reinforced concrete structures, the concrete of the lower structure board 2 and the concrete of the lower part of the plate edge structure beam 3 are cast-in-advance concrete 5, and the concrete of the upper structure board 1 and the concrete of the upper part of the plate edge structure beam 3 are cast-in-advance concrete 6.

The top surface of the precast concrete 5 at the lower part of the plate edge structural beam 3 is flush with the top surface of the lower structural plate 2, namely, the concrete at the lower part of the plate edge structural beam 3 is poured together with the lower structural plate 2, so that the subsequent laying of the polystyrene boards 4, the binding of the steel bars of the upper structural plate 1 and the like are facilitated.

The plate edge structural beams 3 on the two sides are in an inverted L shape with back openings. The thickness of upper structure board 1 and lower floor's structural slab 2 all is less than the top surface of upper structure board 1 to the distance between the top surface of flange limit structural beam 3, the thickness of upper structure board 1 and lower floor's structural slab 2 to and the distance between the top surface of upper structure board 1 to the top surface of flange limit structural beam 3 specifically can set up as the circumstances, simple structure, construction convenience.

The embodiment also provides a construction method of the double-layer structure floor slab, which comprises the following steps:

s1, binding steel bars of a lower-layer structural plate 2 and a plate edge structural beam 3;

s2, pouring concrete of the lower-layer structural slab 2 and concrete at the lower part of the slab edge structural beam 3, namely pouring concrete 5 in advance;

s3, paving a polystyrene board 4 on the lower-layer structural board 2;

s4, binding the steel bars of the upper-layer structural plate 1 above the polystyrene board 4;

and S5, pouring concrete of the upper-layer structural slab 1 and concrete on the upper part of the slab edge structural beam 3, namely post-pouring concrete 6.

In step S3, after the concrete of the lower layer structural slab 2 reaches initial setting, the polystyrene board 4 is laid.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.