阅读说明：本技术 快捷施工的一体化电梯底坑及其施工方法 (Quickly-constructed integrated elevator pit and construction method thereof ) 是由 张凡 陈伟 于 2020-05-26 设计创作，主要内容包括：一种快捷施工的一体化电梯底坑及其施工方法,包括混凝土基座,所述混凝土基座上方设置有剪力围墙,所述剪力围墙内侧设置有多根H型钢柱,所述H型钢柱的下端插入混凝土基座内。本发明结构简单,易于实现。现场作业时间短,大部分作业可以在工厂内提前预制完成；在现场采用一次性浇筑完成可以有效消除底坑渗水隐患；适用于旧楼加装电梯的井道基础,工期短,扰民少,成本低。(The integrated elevator pit capable of being quickly constructed comprises a concrete base, a shear wall is arranged above the concrete base, a plurality of H-shaped steel columns are arranged on the inner side of the shear wall, and the lower ends of the H-shaped steel columns are inserted into the concrete base. The invention has simple structure and is easy to realize. The field operation time is short, and most of operations can be prefabricated and finished in advance in a factory; the hidden danger of water seepage of a bottom pit can be effectively eliminated by adopting one-time pouring on site; the method is suitable for the well foundation of the elevator installed in the old building, and has the advantages of short construction period, less disturbance to residents and low cost.)

1. The utility model provides a swift integration elevator pit of construction, includes the concrete foundation, its characterized in that, concrete foundation top is provided with the shear force enclosure, shear force enclosure inboard is provided with many H shaped steel post, the lower extreme of H shaped steel post inserts in the concrete foundation.

2. The fast-construction integrated elevator pit according to claim 1, wherein a foundation steel reinforcement cage is arranged in the concrete foundation.

3. The integrated elevator pit of claim 2, wherein the shear enclosing wall is a concrete prefabricated member, an enclosing wall reinforcement cage is arranged in the shear enclosing wall, connecting reinforcements are arranged at the lower end of the shear enclosing wall, and two ends of the connecting reinforcements are fixedly connected with the base reinforcement cage and the enclosing wall reinforcement cage respectively.

4. The fast-construction integrated elevator pit according to claim 3, wherein a plurality of shear nails are arranged on the side wall of the H-shaped steel column, and the shear nails are fixed to the H-shaped steel column through welding.

5. The integrated elevator pit of claim 4, wherein the shear nails in the concrete foundation are fixedly connected with the foundation steel reinforcement net cage, and the shear nails in the shear fence are fixedly connected with the fence steel reinforcement net cage.

6. The integrated elevator pit of claim 1, wherein the H-shaped steel bars are arranged to be closely attached to the shear walls, and concrete is filled in a cavity formed by the H-shaped steel columns and the shear walls.

7. A construction method of an integrated elevator pit suitable for quick construction according to claims 1-6, characterized by comprising the following steps:

1) breaking and dismantling the concrete ground in front of the unit door to a natural soil layer;

2) excavating a foundation pit;

3) transporting the shear enclosing wall prefabricated member with the H-shaped steel column to a construction site;

4) placing a base steel bar mesh cage into the foundation pit;

5) a shear enclosing wall with an H-shaped steel column is arranged above the steel reinforcement net cage;

6) welding and fixing the shear nails of the H-shaped steel column and the base steel reinforcement net cage;

7) welding and fixing the lower end of the connecting steel bar and the base steel bar mesh cage;

8) and pouring the concrete base.

8. The construction method of the quickly-constructed integrated elevator pit according to claim 7, wherein the prefabrication method of the shear wall prefabricated member with the H-shaped steel columns comprises the following steps:

1) welding and fixing the shear nails and the H-shaped steel columns in a factory;

2) welding and fixing the shear nails and the enclosure wall reinforcement cages in a factory;

3) welding and fixing the connecting steel bars and the enclosure steel bar mesh cage in a factory;

4) and (4) performing concrete pouring on the shear enclosing wall in a factory.

9. The construction method of the quickly constructed integrated elevator pit according to claim 8, characterized in that when concrete is poured into the shear wall, concrete is poured into a cavity formed by the H-shaped steel column and the shear wall.

Technical Field

The invention relates to an integrated elevator pit capable of being constructed quickly and a construction method thereof.

Background

With the gradual acceleration of urbanization, old communities are more and more difficult to meet the living needs of community residents. More and more old districts are selected to be additionally provided with elevators to meet the traveling demands of old people and children living in high-rise buildings.

The existing old building elevator is often additionally installed by firstly arranging a hoistway pit and then building a hoistway. However, since construction needs to be performed in old communities, construction equipment, construction tools, raw materials and the like tend to occupy the public spaces of the communities which are not abundant, and influence the lives of residents of the communities. The rapid construction of old building elevators is becoming a trend.

Disclosure of Invention

The invention aims to provide an integrated elevator pit capable of being quickly constructed and a construction method thereof.

The technical scheme of the invention is as follows: the utility model provides a swift integration elevator pit of construction, includes the concrete foundation, concrete foundation top is provided with the shear force enclosure, shear force enclosure inboard is provided with many H shaped steel post, the lower extreme of H shaped steel post inserts in the concrete foundation.

Further, a base steel bar net cage is arranged in the concrete base.

Furthermore, the shear force enclosure is the concrete prefabricated member, and its inside is provided with enclosure steel reinforcement cylinder mould, shear force enclosure lower extreme is provided with connecting reinforcement, connecting reinforcement's both ends respectively with base steel reinforcement cylinder mould and enclosure steel reinforcement cylinder mould fixed connection.

Furthermore, a plurality of shear nails are arranged on the side wall of the H-shaped steel column, and the shear nails are fixed with the H-shaped steel column through welding.

Furthermore, the shear nails positioned in the concrete base are fixedly connected with the base steel reinforcement net cage, and the shear nails positioned in the shear enclosure are fixedly connected with the enclosure steel reinforcement net cage.

Furthermore, the H-shaped steel bars are arranged close to the shear wall, and concrete is filled in a cavity formed by the H-shaped steel columns and the shear wall.

A construction method of an integrated elevator pit suitable for rapid construction comprises the following steps:

1) breaking and dismantling the concrete ground in front of the unit door to a natural soil layer;

2) excavating a foundation pit;

3) transporting the shear enclosing wall prefabricated member with the H-shaped steel column to a construction site;

4) placing a base steel bar mesh cage into the foundation pit;

5) a shear enclosing wall with an H-shaped steel column is arranged above the steel reinforcement net cage;

6) welding and fixing the shear nails of the H-shaped steel column and the base steel reinforcement net cage;

7) welding and fixing the lower end of the connecting steel bar and the base steel bar mesh cage;

8) and pouring the concrete base.

Further, the prefabricating method of the shear enclosing wall prefabricated part with the H-shaped steel column comprises the following steps of:

1) welding and fixing the shear nails and the H-shaped steel columns in a factory;

2) welding and fixing the shear nails and the enclosure wall reinforcement cages in a factory;

3) welding and fixing the connecting steel bars and the enclosure steel bar mesh cage in a factory;

4) and (4) performing concrete pouring on the shear enclosing wall in a factory.

Furthermore, when concrete pouring is carried out on the shear wall, concrete is poured into a cavity formed by the H-shaped steel column and the shear wall.

Compared with the prior art, the invention has the following advantages: the invention has simple structure and is easy to realize. The field operation time is short, and most of operations can be prefabricated and finished in advance in a factory; the hidden danger of water seepage of a bottom pit can be effectively eliminated by adopting one-time pouring on site; the method is suitable for the well foundation of the elevator installed in the old building, and has the advantages of short construction period, less disturbance to residents and low cost.

Drawings

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

FIG. 2 is a top view of the H-shaped steel columns and the shear wall (not poured with concrete);

FIG. 3 is a partial view of the H-shaped steel columns and the shear wall;

in the figure: the steel column comprises a concrete base 1, a shear wall 2, an H-shaped steel column 3, a connecting steel bar 4, a shear nail 5, a base steel bar net cage 6 and a wall steel bar net cage 7.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 1-3.

In a preferred embodiment of the present invention: the utility model provides a swift integration elevator pit of construction, includes concrete foundation 1, concrete foundation top is provided with shear force enclosure 2, shear force enclosure inboard is provided with many H shaped steel post 3, the lower extreme of H shaped steel post inserts in the concrete foundation.

In this embodiment, a foundation reinforcement cage 6 is provided in the concrete foundation to increase the strength of the concrete foundation.

In this embodiment, the shear force enclosure is the concrete prefabricated part, and its inside is provided with enclosure steel reinforcement cylinder mould 7, enclosure steel reinforcement cylinder mould is "returning" type, shear force enclosure lower extreme is provided with connecting reinforcement 4, connecting reinforcement's both ends respectively with base steel reinforcement cylinder mould and enclosure steel reinforcement cylinder mould fixed connection to satisfy structural strength requirement, avoid shear force enclosure and concrete foundation separation under the exogenic action.

In this embodiment, the side wall of the H-shaped steel column is provided with a plurality of shear pins 5, and the shear pins are all fixed to the H-shaped steel column by welding. The shear nails and the base steel bar net cage are fixedly connected in the concrete base, the shear nails and the wall steel bar net cage are fixedly connected in the shear enclosure, and the fixed connection is welded and fixed to enhance the structural strength and uniformly disperse stress into the concrete base and the shear enclosure.

In this embodiment, for the convenience of construction, when prefabricating the shear force enclosure, firstly shear force nail and connecting reinforcement on the H shaped steel post and enclosure steel reinforcement cylinder mould welded fastening carry out shear force enclosure concrete placement again. Before the concrete base is poured, the shear nails and the connecting steel bars on the H-shaped steel column are welded and fixed with the base steel bar net cage.

In this embodiment, the H-shaped steel bars are arranged to be closely attached to the shear wall, and concrete is filled in a cavity formed by the H-shaped steel columns and the shear wall, so that the structural strength is improved, and accidents caused by damage are avoided.

A construction method of an integrated elevator pit suitable for rapid construction comprises the following steps:

1) breaking and dismantling the concrete ground in front of the unit door to a natural soil layer to expose the working surface;

2) excavating a foundation pit;

3) transporting the shear enclosing wall prefabricated member with the H-shaped steel column to a construction site;

4) placing a base steel bar mesh cage into the foundation pit;

5) a shear enclosing wall with an H-shaped steel column is arranged above the steel reinforcement net cage;

6) welding and fixing the shear nails of the H-shaped steel column and the base steel reinforcement net cage;

7) welding and fixing the lower end of the connecting steel bar and the base steel bar mesh cage;

8) and pouring the concrete base.

In this embodiment, the method for prefabricating the shear fence prefabricated member with the H-shaped steel column includes the following steps:

1) welding and fixing the shear nails and the H-shaped steel columns in a factory;

2) welding and fixing the shear nails and the enclosure wall reinforcement cages in a factory;

3) welding and fixing the connecting steel bars and the enclosure steel bar mesh cage in a factory;

4) and (4) performing concrete pouring on the shear enclosing wall in a factory.

In this embodiment, when shear force enclosure concrete placement is carried out, pour into concrete in the cavity that H shaped steel post and shear force enclosure formed to increase structural strength, avoid damaging and lead to the occurence of failure.

The above description is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various forms of the integrated elevator pit and the construction method thereof are designed according to the teachings of the present invention without any creative effort, and all the equivalent changes, modifications, substitutions and variations made in the claims of the present invention shall fall within the scope of the present invention without departing from the principle and spirit of the present invention.