CN214941502U

CN214941502U - Backfill-free prefabricated slab with overhead structure

Info

Publication number: CN214941502U
Application number: CN202120254968.2U
Authority: CN
Inventors: 王欣; 张春莲; 周强; 黄永春; 李琳
Original assignee: Qingdao Gad Building Design Co ltd
Current assignee: Jiedi Design Group Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-30
Anticipated expiration: 2031-01-29

Abstract

The utility model relates to a construction field discloses an exempt from to backfill overhead structure prefabricated plate, and it is fixed with the structure roof beam of two parallels including bearing panel, structure roof beam and landing leg post, bearing panel bottom, and every structure roof beam below vertical fixation has two landing leg posts. Adopt the utility model discloses an exempt from to backfill overhead structure prefabricated plate has avoided backfilling this kind of operating method friendly, very big having alleviateed the floor and born the load for the load bearing of floor only need satisfy conventional state can, practiced thrift like this and fallen the regional floor arrangement of reinforcement of the board, also alleviateed the load of peripheral roof beam, post, corresponding arrangement of reinforcement all can effectual reduction.

Description

Backfill-free prefabricated slab with overhead structure

Technical Field

The utility model relates to a construction field particularly, relates to an exempt from to backfill overhead structure prefabricated plate.

Background

The elevation that the bathroom structural slab of many buildings will be than other regions is low, and the structural slab of general bathroom is than other regions low 0.4-0.6m, and the bathroom falls the board and mainly solves at the same floor in order to realize the drainage problem, and the purpose that the board was fallen to the structure is in order to vacate the space of laying drainage pipe, if do not fall the bathroom drainage pipe on this floor of board, can wear out in the ceiling department of lower floor, be unfavorable for the fitment of resident family under the floor, also hinder the sight. In addition, the installation squatting pan needs the take the altitude, and the board that falls is exactly in order to guarantee that the terrace of squatting pan installation back raising is unanimous basically with the outside, avoids too big drop. And water is easy to accumulate in the toilet, if the height of the toilet is equal to the height of the board of other rooms, the water is easy to flow out of the toilet range, and the water is easy to leak to lower-layer houses because other rooms are not provided with waterproof and anti-seepage measures like the board of the toilet, so that the normal daily life of residents on each floor is seriously influenced. Therefore, the elevation of the toilet plate surface is lower than that of the indoor ground, and the structural falling plate of the toilet also provides conditions for slope finding of the building surface layer, so that water in the toilet can be gathered at the floor drain.

In addition to the need for structural drop panels in toilets, structural drop panels are also needed in special locations, such as power substations, power distribution substations, etc., where the drop panels are typically more than 0.9m, and the purpose of the drop panels is primarily to enable a number of intricate and complex pipelines to be laid underneath the building floor, since many cable trenches, cable conduits, etc. are needed for the power distribution and transformation facilities. If the structure does not fall the board, in the soil under these pipelines directly bury the structure board, later stage pipeline's maintenance, arrange again all inconvenient, the most common way is that the structure falls the board reservation condition now, after the equipment of later transformer substation and distribution company enters the field, arrange the pipeline on the structure board, carry out earthing backfill again after all electric wire netting pipelines, water pipe have arranged, do the building surface course again on the backfill soil, accomplish the construction.

Although the conventional method has no obvious defects, the increase of the load caused by backfilling undoubtedly causes more burden on the structure and waste. On one hand, in order to level the indoor ground, backfilling the level ground after the arrangement of pipelines is finished can increase the load of the structural beam slab; on the other hand, if the backfill material is made of light concrete, the cost is high, particularly, a backfill area below a power transformation and distribution station is very thick, the cost is high, if the backfill material is made of construction waste, the construction waste is uneven in texture and size, the ground is prone to sinking and deforming in the later period, and if the backfill material is made of sandy soil, the density of the sandy soil is high, the load is heavy, and reinforcing bars of beam plates of the structural main body need to be added.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at overcomes prior art not enough, provides an exempt from to backfill overhead structure prefabricated plate.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a exempt from to backfill overhead structure prefabricated plate, includes bearing panel, structural beam and landing leg post, and bearing panel bottom is fixed with two parallel structural beams, and every structural beam below is fixed with two landing leg posts perpendicularly.

Preferably, an arc bucket arch is further arranged between the supporting leg column and the structural beam.

Preferably, the load bearing panel is square.

Preferably, the cross section of the leg column is square, the cross section of the structural beam is rectangular, and the width of the structural beam is the same as that of the leg column.

Preferably, the height of the structural beam is 1.5 times the width.

Preferably, three ribbed steel bars are uniformly distributed at the bottom of the structural beam, and two ribbed steel bars are uniformly distributed at the top of the structural beam

Preferably, the distance between two structural beams is half of the width of the load-bearing panel, and the distance between two leg columns under the same structural beam is half of the width of the load-bearing panel.

Preferably, ribbed steel bars are arranged in the bearing panel along the length direction and the width direction, the steel bars perpendicular to the direction of the structural beam are stressed steel bars, and the steel bars parallel to the direction of the structural beam are distributed steel bars.

Preferably, the thickness of the carrying plate is 90mm-120 mm.

The utility model discloses following beneficial effect has:

(1) by adopting the backfill-free overhead structure precast slab of the utility model, the backfill operation mode is avoided friendly, the floor bearing load is greatly reduced, the floor bearing load only needs to meet the conventional state, thus saving floor reinforcing bars in a slab-lowering area, reducing the load of peripheral beams and columns, and effectively reducing the corresponding reinforcing bars;

(2) by adopting the backfill-free overhead structure prefabricated slab of the utility model, the reserved space below the bearing floor slab can be used for the random penetration of pipelines, thereby facilitating the arrangement and installation of the pipelines in the ground and greatly improving the function of the building; if the pipeline is damaged and leaks water, the corresponding backfill-free overhead structure prefabricated slab is only required to be moved away, and the pipeline is moved back to the original position after being overhauled and replaced, so that the damage to the main structure is avoided, the moved prefabricated slab can still be put back to the original position for continuous use, the overhauling construction engineering is greatly simplified, and the concrete is prevented from being poured again in a conventional mode;

(2) adopt the utility model discloses an exempt from to backfill overhead structure prefabricated plate, prefabricated plate are prefabricated at the mill, have realized automation and mechanization, and follow-up fortune can directly be assembled at the scene after loading to the scene, has avoided wet operation, very big improvement the efficiency of operation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic diagram of the present invention;

wherein the figures include the following reference numerals: 1. a load bearing panel; 2. a structural beam; 3. a leg post; 4. an arc bucket arch; 5. ribbed steel bar.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in FIGS. 1-2, exempt from to backfill overhead structure prefabricated plate, including load-bearing panel 1, structure roof beam 2 and landing leg post 3, load-bearing panel 1 bottom is fixed with the structure roof beam 2 of two parallels, every structure roof beam 2 below vertical fixation has two landing leg posts 3. The bearing panel 1 is square, the section of the leg column 3 is square, the section of the structural beam 2 is rectangular, the width of the structural beam 2 is the same as that of the leg column 3, and the height of the structural beam 2 is 1.5 times of the width. The distance between two structural beams 2 is half of the width of the bearing panel 1, and the distance between two supporting leg columns 3 under the same structural beam 2 is half of the width of the bearing panel 1.

All be provided with ribbed reinforcing bar 5 along length direction and width direction in bearing panel 1, the reinforcing bar of perpendicular to structure roof beam direction is the atress reinforcing bar, and the reinforcing bar that is on a parallel with the structure roof beam direction is the distribution reinforcing bar, and the diameter ratio of atress reinforcing bar is big of distribution reinforcing bar. The thickness of the bearing plate is typically 90mm to 120mm depending on the application of the floor and the load on its upper part.

Three ribbed reinforcing bars of bottom equipartition of structure roof beam 2, two ribbed reinforcing bars of top equipartition, according to the requirement of national standard to reinforcing bar protective layer thickness, the reinforcing bar all keeps 20mm apart from the edge of structure roof beam, and the diameter of reinforcing bar is selected according to the actual demand of upper portion load.

Still be provided with arc bracket 4 between leg post 3 and the structure roof beam 2, arc bracket 4 plays the effect of armpit to the structure roof beam for the position atress of structure roof beam and leg post handing-over is more even, bearing capacity is stronger, makes the amount of deflection of structure roof beam littleer, and the span can be done bigger. The arc bucket arch is only strengthened at beam column handing-over position, but water supply pipe, cable etc. alternate below the arch cave, have reserved sufficient space for arranging of pipeline.

In the in-service use, at first will in the mill the utility model discloses an exempt from to backfill overhead structure prefabricated plate is prefabricated in advance, transports the prefabricated plate of required quantity to the job site during the use, assembles at the scene, assembles the completion after can be decorated such as pasting floor tile or doing timber apron on the loading end plate, as shown in fig. 3.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a exempt from to backfill overhead structure prefabricated plate which characterized in that, includes load panel (1), structural beam (2) and leg post (3), and load panel (1) bottom is fixed with two parallel structural beam (2), and every structural beam (2) below vertical fixation has two leg post (3).

2. The backfill-free overhead structural precast slab according to claim 1, characterized in that an arc-shaped bracket arch (4) is further arranged between the leg column (3) and the structural beam (2).

3. The backfill-free overhead structural precast slab according to claim 1, characterized in that the load bearing panel (1) is square.

4. The backfill-free overhead structural precast slab according to claim 1, wherein the section of the leg column (3) is square, the section of the structural beam (2) is rectangular, and the width of the structural beam (2) is the same as that of the leg column (3).

5. The backfill-free overhead structural precast slab according to claim 4, characterized in that the height of the structural beam (2) is 1.5 times the width.

6. The backfill-free overhead structure precast slab according to claim 1, characterized in that three ribbed steel bars (5) are uniformly distributed at the bottom of the structural beam (2) and two ribbed steel bars (5) are uniformly distributed at the top.

7. The backfill-free overhead structural precast slab according to claim 1, characterized in that the spacing between two structural beams (2) is half of the width of the bearing panel (1), and the spacing between two leg columns (3) under the same structural beam (2) is half of the width of the bearing panel (1).

8. The backfill-free overhead structure precast slab according to claim 1, wherein ribbed steel bars (5) are arranged in the bearing panel (1) along the length direction and the width direction, the steel bars perpendicular to the structural beam (2) are stressed steel bars, and the steel bars parallel to the structural beam (2) are distributed steel bars.

9. The backfill-free overhead structural precast slab according to claim 1, characterized in that the thickness of the bearing panel (1) is 90mm-120 mm.