CN112962886B

CN112962886B - Steel stair transformation method and steel stair

Info

Publication number: CN112962886B
Application number: CN202110216083.8A
Authority: CN
Inventors: 钟鑫; 韩源源; 吴小婉; 杨林; 张羽; 吴杰; 赵健成; 孙赈甡
Original assignee: Beijing Urban Construction Group Co Ltd
Current assignee: Beijing Urban Construction Group Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2023-08-25
Anticipated expiration: 2041-02-26
Also published as: CN112962886A

Abstract

The invention provides a steel stair transformation method and a steel stair, belonging to the technical field of buildings, wherein the steel stair transformation method comprises the following steps: a supporting beam is arranged on an old tread plate of the original steel stair; a new tread plate is fixedly arranged on the supporting beam, and the tread width of the new tread plate is larger than that of the old tread plate; according to the steel stair reconstruction method, the original steel stair is not required to be dismantled, the supporting beams are arranged on the tread plates of the original steel stair, the steel stair is reconstructed in a mode that the old tread plates and the supporting beams are provided with the new tread plates, the requirement on tread widening of the tread plates can be met, and the reconstruction construction period can be saved.

Description

Steel stair transformation method and steel stair

Technical Field

The invention relates to the technical field of buildings, in particular to a steel stair transformation method and a steel stair.

Background

Steel stairways have previously been widely used in factory buildings, and with the advent of many high-style buildings, they have also been used in many modern buildings. The steel stair can be made very simply, the Z-shaped steel plates are welded together to form the Z-shaped steel plate stair, the folded part is fixed with the wall surface, and no other redundant design exists.

The tread width of the tread design of the original design steel stair is smaller, and when a person steps on the steel stair, the heel is not supported and is easy to stand unstably, so that the steel stair needs to be modified. When the steel stair is modified, if the original steel stair is removed, the modification period is long, and the requirements of modern rapid operation are not met.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect of long time for modifying the steel stair in the prior art, thereby providing a steel stair modifying method.

The invention also provides the steel stair reformed by the reforming method.

In order to solve the technical problems, the invention provides a steel stair reconstruction method, which comprises the following steps:

a supporting beam is arranged on an old tread plate of the original steel stair;

and a new tread plate is fixedly arranged on the supporting beam, and the tread width of the new tread plate is larger than that of the old tread plate.

Optionally, the supporting beam is arranged on the lower half part of the old tread plate, and the slope of the supporting beam is smaller than that of the original steel stair;

and directly paving the new pedal plate on the upper half part of the old pedal plate to fixedly connect the new pedal plate.

Optionally, the supporting beam is connected with the old pedal plate by adopting a stand column.

Optionally, the upright is supported on the tread of the old tread plate on the side near the edge.

Optionally, the upright posts are arranged on the old tread plate at intervals of two steps.

Optionally, the support beam includes: and the channel steels are arranged at intervals along the horizontal direction of the old tread plate.

Optionally, the spacing between two laterally adjacent support beams is 900mm.

Optionally, the new tread plate is formed by sequentially connecting a plurality of angle steels, and the thickness of each angle steel is 5mm.

Optionally, the lower end of the angle steel of the new tread plate is directly connected with the supporting beam in a welding way, and the upper end of the angle steel is connected with the vertical surface of the angle steel of the upper stage in a welding way.

The invention provides a steel stair, comprising:

the old pedal is fixedly welded on the embedded part;

the supporting beam is obliquely arranged on the old pedal plate;

the novel tread plate is fixedly arranged on the supporting beam, and the tread width of the novel tread plate is larger than that of the old tread plate.

The technical scheme of the invention has the following advantages:

1. according to the steel stair reconstruction method provided by the invention, the original steel stair is not required to be dismantled, the steel stair is reconstructed in a manner that the old tread plate and the new tread plate are arranged on the support beam by arranging the support beam on the tread plate of the original steel stair, so that the requirement on tread widening of the tread plate can be met, and the reconstruction construction period can be saved.

2. According to the steel stair, the novel tread is additionally arranged on the basis of the old tread, the tread width is improved, and meanwhile the stability requirement of the tread is met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of one implementation of a steel stair in an embodiment of the invention.

Fig. 2 is a schematic diagram of a partial structure in the region B.

Reference numerals illustrate:

1. a support beam; 2. a new tread plate; 3. old pedal plate; 4. a buried piece; 5. and (5) a column.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

The embodiment provides a specific implementation manner of a steel stair, as shown in fig. 1, the steel stair is formed by adding a supporting beam 1 and a new tread plate 2 on the basis of the original steel stair, and specifically includes: old tread plates 3, wherein the old tread plates 3 are fixedly welded on the embedded parts 4; the support beam 1 is arranged obliquely on the lower half of the old tread plate 3, namely: on the B-zone of the old tread plate 3 in fig. 1. The new tread plate 2 is fixedly arranged on the upper half of the old tread plate 3 and on the support beam 1, wherein the upper half of the old tread plate 3 refers to the area of the section a of the old tread plate 3 in fig. 1. The tread width of the new tread plate 2 is larger than the tread width of the old tread plate 3, so that the comfort of pedestrians going up and down stairs is improved, and due to the arrangement of the supporting beam 1, the slope of the supporting beam 1 is smaller than that of the original steel stairs, the height difference between the treads of the new tread plate 2 arranged on the supporting beam 1 is reduced, and the comfort of pedestrians going up and down stairs can be further improved.

The construction method of the steel stair provided by the embodiment specifically comprises the following steps:

first, a support beam 1 is provided on an old tread plate 3 of the lower half of the original steel stair (section B region shown in fig. 1), and the slope of the support beam 1 is smaller than that of the original steel stair. The support beam 1 and the old tread plate 3 are supported by the upright post 5, the upper end and the lower end of the upright post 5 are respectively welded and connected to the treads of the support beam 1 and the old tread plate 3, preferably, as shown in fig. 2, the lower end of the upright post 5 is welded on one side, close to the edge, of the tread of the old tread plate 3, so that the supporting force of the tread to the upright post 5 can be increased, and collapse caused by the fact that the tread of the old tread plate 3 cannot be supported is avoided. The upright posts 5 are preferably arranged on the old tread plate 3 at two steps, so that the uniformity of supporting the supporting beam 1 is ensured.

Then, a new tread plate 2 is directly laid on the upper half part (a section a area shown in fig. 1) of the old tread plate 3 of the original steel stair, the tread width of the new tread plate 2 is larger than that of the old tread plate 3, and a column 5 is used for supporting between the lower part of the new tread plate 2 extending out of the old tread plate 3 and the old tread plate 3. The new tread plate 2 is fixedly arranged on the supporting beam 1 at the lower half part of the old tread plate 3 of the original steel stair.

The novel tread plate 2 is formed by sequentially welding and connecting a plurality of angle steel with the thickness of 5mm, the angle steel is a finished product, prefabrication can be performed in a factory, purchasing can be facilitated, and accordingly efficiency of reconstruction construction is improved. When constructing, as shown in fig. 2, the lower extreme of the angle steel of new step board 2 is direct with supporting beam 1 welded connection, the upper end of angle steel and the vertical face welded connection of the angle steel of last level, because be vertical welding between lower level angle steel and the last level angle steel to can be convenient for the firm connection between the angle steel, can improve angle steel welded connection's fastness.

In addition, as an alternative embodiment, the supporting beam 1 may be provided to extend from the top end of the old tread plate 3 to the bottom end of the old tread plate 3, so that the new tread plate 2 is welded to the supporting beam 1 entirely.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.

Claims

1. The steel stair reconstruction method is characterized by comprising the following steps of:

a supporting beam (1) is arranged on an old tread (3) of the original steel stair;

a new tread plate (2) is fixedly arranged on the supporting beam (1), and the tread width of the new tread plate (2) is larger than that of the old tread plate (3).

2. The steel stair reconstruction method according to claim 1, characterized in that the support beam (1) is arranged on the lower half of the old tread plate (3), the slope of the support beam (1) being smaller than the slope of the original steel stair;

the new tread plate (2) is directly paved on the old tread plate (3) at the upper half part of the old tread plate (3) for fixed connection.

3. A method of modifying a steel stairway according to claim 2, characterised in that the support beam (1) is in supporting connection with the old tread (3) by means of a column (5).

4. A method of modifying a steel stairway according to claim 3, characterised in that the upright (5) is supported on the tread of the old tread (3) on the side close to the edge.

5. The method of modifying a steel stairway according to claim 4, characterised in that the uprights (5) are arranged one at two steps apart on the old tread (3).

6. A steel stair reconstruction method according to claim 1, wherein the support beam (1) comprises: and a plurality of channel steels are arranged at intervals along the horizontal direction of the old tread plate (3).

7. A method of modifying a steel stairway according to claim 6, characterised in that the spacing between two laterally adjacent support beams (1) is 900mm.

8. The steel stair reconstruction method according to claim 1, wherein the new tread (2) is arranged by angle steel, and the thickness of the angle steel is 5mm.

9. The steel stair reconstruction method according to claim 8, wherein the lower end of the angle steel of the new tread plate (2) is directly welded with the supporting beam (1), and the upper end of the angle steel is welded with the vertical surface of the angle steel of the upper stage.

10. A steel stairway, comprising:

an old tread (3) is fixedly welded on the embedded part (4);

a supporting beam (1) which is obliquely arranged on the old tread plate (3);

the novel tread plate (2) is fixedly arranged on the supporting beam (1), and the tread width of the novel tread plate (2) is larger than that of the old tread plate (3).