阅读说明：本技术 预制电梯井、装配式电梯井及其施工方法 (Prefabricated elevator shaft, assembly type elevator shaft and construction method thereof ) 是由 卢旦 刘智龙 于 2020-12-23 设计创作，主要内容包括：本发明公开了一种预制电梯井、装配式电梯井及其施工方法,所述预制电梯井用于设置在建筑物内以安装电梯,所述预制电梯井包括预制电梯井本体。所述预制电梯井本体具有一容置空间用于安装所述电梯,所述预制电梯井本体的一个侧面上开设有缺口用于为所述电梯的门预留空间,所述预制电梯井本体上沿第一方向设置有多个第一通孔,所述第一通孔用于放置受力钢筋。利用本申请的预制电梯井在对现有建筑物加装电梯时,无需再现场支模、搭设脚手架以及浇筑混凝土,有效提高了施工效率,且有效减小了对小区环境和住户生活的影响。(The invention discloses a prefabricated elevator shaft, a fabricated elevator shaft and a construction method thereof. The prefabricated elevator shaft body is provided with an accommodating space for installing the elevator, a notch is formed in one side face of the prefabricated elevator shaft body and used for reserving a space for a door of the elevator, a plurality of first through holes are formed in the prefabricated elevator shaft body along a first direction, and the first through holes are used for placing stress reinforcing steel bars. Utilize the prefabricated elevartor shaft of this application when installing the elevator additional to current building, need not to reappear a model, set up scaffold frame and concreting, effectively improved the efficiency of construction, and effectively reduced the influence to residential quarter environment and resident family life.)

1. A prefabricated elevator hoistway for placement within a building for installation of an elevator, the prefabricated elevator hoistway comprising a prefabricated elevator hoistway body;

the prefabricated elevator shaft body is provided with an accommodating space for installing the elevator, a notch is formed in one side face of the prefabricated elevator shaft body and used for serving as a door reserved space of the elevator, a plurality of first through holes are formed in the prefabricated elevator shaft body along a first direction and used for placing stress reinforcing steel bars, and the first direction is the lifting direction of the elevator.

2. The prefabricated elevator hoistway of claim 1, wherein the prefabricated elevator hoistway body further comprises a metal corrugated tube disposed within the prefabricated elevator hoistway body and forming the first through-hole.

3. The prefabricated elevator shaft of claim 2, wherein the diameter of the first through hole is R1, and the diameter of the force-receiving reinforcement is R2;

wherein the R1 and the R2 satisfy: r1 is more than or equal to 4R 2.

4. The prefabricated elevator shaft according to claim 2, wherein a plurality of second through holes are formed in a side surface of the prefabricated elevator shaft body, the second through holes are formed along a direction perpendicular to an extending direction of the first through holes, and the second through holes are communicated with the first through holes;

the second through hole is used as an operation cavity for connecting the stressed steel bar.

5. The prefabricated elevator shaft of claim 4, wherein each of said second through holes is in communication with a corresponding one of said first through holes.

6. The prefabricated elevator hoistway of claim 5, wherein the second through-holes are staggered on the sides of the prefabricated elevator hoistway body.

7. A fabricated elevator hoistway, characterized in that a prefabricated elevator hoistway according to any one of claims 1-6 is used for preparation.

8. The fabricated elevator hoistway of claim 7, further comprising a plurality of reinforcing bars and a filler, wherein a plurality of said fabricated elevator hoistways and said reinforcing bars are connected up and down to form said fabricated elevator hoistway;

a plurality of second through holes are formed in the side face of the prefabricated elevator shaft body, the second through holes are formed in the extending direction perpendicular to the first through holes, and the second through holes are communicated with the first through holes;

a plurality of the prefabricated elevator shafts are arranged in an aligned mode, so that the first through holes of the plurality of the prefabricated elevator shafts are aligned to form a through part;

at least two stressed steel bars are arranged in each through part, and the connecting ends of the at least two stressed steel bars are connected at a second through hole of the prefabricated elevator shaft;

the filler is filled in the first through hole.

9. The fabricated elevator hoistway of claim 8, wherein the connection ends of said at least two load-bearing bars are connected by a straight threaded sleeve.

10. The fabricated elevator hoistway of claim 8, wherein the filler comprises concrete or mortar.

11. A construction method of a fabricated elevator hoistway, using the fabricated elevator hoistway according to any one of claims 8 to 10, comprising the steps of:

arranging a prefabricated elevator shaft positioned below and arranging a stressed steel bar;

arranging the prefabricated elevator shaft positioned above and the prefabricated elevator shaft positioned below in an aligned mode, and arranging stress reinforcing steel bars;

connecting the stressed steel bars in the through part;

and plugging the second through hole, and filling the filler into the first through hole and the second through hole.

Technical Field

The invention relates to the field of buildings, in particular to a prefabricated elevator shaft, an assembled elevator shaft and a construction method of the assembled elevator shaft.

Background

At present, a considerable part of people in China live in multi-storey houses without elevators, with the advance of barrier-free urbanization work, the actual requirement of installing elevators in the multi-storey houses is increasingly prominent, and the problem of how to reasonably and safely install elevators in old buildings also becomes the focus of attention of some large and medium-sized cities. With the increasing proportion of old people in large and medium-sized cities, most of the old people are confronted with great life dilemma due to the condition that houses with low-rise buildings and multiple-rise buildings (old buildings) have no elevator.

In order to solve the problem that the existing building has no elevator, the life quality of old people and disabled people is improved, the requirement for additionally installing the elevator in the domestic existing building is increased year by year, relevant policies, relevant regulations and a plurality of sexual guidance suggestions are provided by relevant departments of government, however, in the elevator installation project adopting the traditional construction method, on-site formwork support, scaffold erection and concrete pouring are needed, the construction efficiency is low, and the influence on the community environment and the life of residents is caused.

Therefore, a scheme for improving the construction efficiency of the elevator installation is needed.

It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a prefabricated elevator shaft, an assembled elevator shaft and a construction method thereof, which are used for solving the problem of low construction efficiency in the prior art.

In order to solve the technical problem, the invention provides a prefabricated elevator shaft which is arranged in a building to install an elevator and comprises a prefabricated elevator shaft body;

the prefabricated elevator shaft body is provided with an accommodating space for installing the elevator, a notch is formed in one side face of the prefabricated elevator shaft body and used for serving as a door reserved space of the elevator, a plurality of first through holes are formed in the prefabricated elevator shaft body along a first direction and used for placing stress reinforcing steel bars, and the first direction is the lifting direction of the elevator.

Optionally, the prefabricated elevator hoistway body further comprises a metal corrugated pipe disposed within the prefabricated elevator hoistway body and forming the first through hole.

Optionally, the diameter of the first through hole is R1, and the diameter of the stressed steel bar is R2;

wherein the R1 and the R2 satisfy: r1 is more than or equal to 4R 2.

Optionally, a plurality of second through holes are formed in the side surface of the prefabricated elevator shaft body, the second through holes are formed along the extending direction perpendicular to the first through holes, and the second through holes are communicated with the first through holes;

the second through hole is used as an operation cavity for connecting the stressed steel bar.

Optionally, each of the second through holes is correspondingly communicated with one of the first through holes.

Optionally, the second through holes are staggered on the side of the prefabricated elevator shaft body.

Based on the same inventive concept, the invention also provides a fabricated elevator shaft, which is prepared by using the prefabricated elevator shaft described in any one of the above characteristic descriptions.

Optionally, the prefabricated elevator hoistway further comprises a plurality of stressed steel bars and fillers, wherein the prefabricated elevator hoistway and the stressed steel bars are connected up and down to form the fabricated elevator hoistway;

a plurality of second through holes are formed in the side face of the prefabricated elevator shaft body, the second through holes are formed in the extending direction perpendicular to the first through holes, and the second through holes are communicated with the first through holes;

a plurality of the prefabricated elevator shafts are arranged in an aligned mode, so that the first through holes of the plurality of the prefabricated elevator shafts are aligned to form a through part;

at least two stressed steel bars are arranged in each through part, and the connecting ends of the at least two stressed steel bars are connected at a second through hole of the prefabricated elevator shaft;

the filler is filled in the first through hole.

Optionally, the connecting ends of the at least two stressed steel bars are connected through a straight thread sleeve.

Optionally, the filler comprises concrete or mortar.

Based on the same inventive concept, the invention also provides a construction method of the fabricated elevator shaft, which utilizes any one of the above characteristic descriptions, and comprises the following steps:

arranging a prefabricated elevator shaft positioned below and arranging a stressed steel bar;

arranging the prefabricated elevator shaft positioned above and the prefabricated elevator shaft positioned below in an aligned mode, and arranging stress reinforcing steel bars;

connecting the stressed steel bars in the through part;

and plugging the second through hole, and filling the filler into the first through hole and the second through hole.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a prefabricated elevator shaft for being arranged in a building to install an elevator, comprising a prefabricated elevator shaft body. The prefabricated elevator shaft body is provided with an accommodating space for installing the elevator, a notch is formed in one side face of the prefabricated elevator shaft body and used for reserving a space for a door of the elevator, a plurality of first through holes are formed in the prefabricated elevator shaft body along a first direction, and the first through holes are used for placing stress reinforcing steel bars. Utilize the prefabricated elevartor shaft of this application when installing the elevator additional to current building, need not to reappear a model, set up scaffold frame and concreting, effectively improved the efficiency of construction, and effectively reduced the influence to residential quarter environment and resident family life.

2. At least reserve the first through-hole of 4 times atress reinforcing bars in prefabricated elevator shaft, because first through-hole inner space is great, therefore the fault-tolerant strong, the atress reinforcing bar inserts in the first through-hole very easily.

3. This application first through-hole utilizes pre-buried corrugated metal pipe, waits after the concrete setting shaping corrugated metal pipe stays need not to take out in the prefabricated elevator well, does so and has not only saved the step of taking out the pipe, still because pre-buried corrugated metal pipe makes the lateral wall of first through-hole is crude, helps the combination with the filler of irritating afterwards.

4. The second through holes are arranged on the side face of the prefabricated elevator shaft body in a staggered mode, the second through holes are not located at the same horizontal height, the situation that stressed steel bars need to be connected through primary connectors can be avoided, secondary connectors or tertiary connectors can be selected, and cost is effectively reduced.

The fabricated elevator shaft and the construction method thereof belong to the same inventive concept as the prefabricated elevator shaft, and therefore have the same beneficial effects.

Drawings

Fig. 1 is a schematic structural view of a prefabricated elevator shaft according to an embodiment of the present invention;

FIG. 2 is a schematic view of FIG. 1 from another angle;

FIG. 3 is an enlarged schematic view of a portion of the second via of FIG. 1;

FIG. 4 is a schematic structural view of the prefabricated elevator shaft after force-bearing reinforcing steel bars are arranged;

fig. 5 is a schematic structural view of a fabricated elevator according to another embodiment of the present invention;

FIG. 6 is a schematic view of FIG. 5 from another angle;

fig. 7 is a schematic flow chart of a construction method of a fabricated elevator shaft according to still another embodiment of the present invention;

10-prefabricated elevator shaft body, 100-notch, 101-first through hole, 102-second through hole, 103-window hole and 200-stressed steel bar

Detailed Description

The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 to 4, an embodiment of the present invention provides a prefabricated elevator shaft for installation in a building to install an elevator, the prefabricated elevator shaft including a prefabricated elevator shaft body 10. Prefabricated elevartor shaft body 10 has an accommodation space and is used for installing the elevator, set up breach 100 on one side of prefabricated elevartor shaft body 10 and be used for the door headspace of elevator, be provided with a plurality of first through-holes 101 along the first direction on the prefabricated elevartor shaft body 10, first through-hole 101 is used for placing atress reinforcing bar 200, the first direction is the direction of rise and fall of elevator.

Different from prior art lies in, this embodiment has provided a prefabricated elevartor shaft, need not to reappear a model, set up scaffold and concreting, has effectively improved the efficiency of construction, and has effectively reduced the influence to residential environment and resident family life. It is understood that the prefabricated elevator shaft body 10 may be further provided with a window hole 103.

Preferably, the prefabricated elevator hoistway body 10 further includes a metal corrugated pipe which is disposed inside the prefabricated elevator hoistway body 10 and forms the first through hole 101. In the prior art, the first through hole 101 is prepared by using a core-pulling method, that is, a pipe is embedded in concrete, and the pipe is pulled out after the concrete is solidified and formed, so as to form a through hole. This application first through-hole 101 is then pre-buried metal bellows, waits after the concrete sets the shaping metal bellows stays need not to take out in the prefabricated elevator shaft, does so not only save the step of taking out the pipe, still makes because pre-buried metal bellows the lateral wall of first through-hole 101 is crude, helps the combination with the filler of irritating afterwards.

Preferably, the diameter of the first through hole 101 is R1, and the diameter of the stressed steel bar 200 is R2; wherein the R1 and the R2 satisfy: r1 is more than or equal to 4R 2. At least a first through hole 101 of 4 times of stress steel bars 200 is reserved in the prefabricated elevator shaft, and the space in the first through hole 101 is large, so that the fault tolerance is strong, and the stress steel bars 200 can be easily inserted into the first through hole 101

Further, a plurality of second through holes 102 are formed in the side surface of the prefabricated elevator shaft body 10, the second through holes 102 are formed along the extending direction perpendicular to the first through holes 101, and the second through holes 102 are communicated with the first through holes 101; the second through hole 102 serves as an operation cavity for connecting the force-receiving reinforcing bar 200.

Optionally, each of the second through holes 102 is correspondingly communicated with one of the first through holes 101. In the embodiment of the present invention, each of the first through holes 101 is respectively and correspondingly communicated with one of the second through holes 102, it can be understood that, in other embodiments, each of the first through holes 101 may also be correspondingly communicated with two or more of the second through holes 102, which is not limited herein and may be specifically selected according to actual needs.

The two prefabricated units in the current prefabricated concrete structure are usually connected by using a steel bar sleeve grouting connection technology. However, the sleeve grouting connection has the problems of high construction requirements (including high component precision requirements), high detection difficulty, high cost and the like. In actual engineering, the situations that reinforcing steel bars cannot be inserted into the sleeves, grouting is not dense and the like often occur. Based on the problems in the prior art, an operation cavity is formed in the side face of the wall body at the connecting position of the stress steel bars 200, and the two stress steel bars 200 are preferably connected in the operation cavity by adopting a straight thread sleeve or welding. The connection saves a sleeve component and material costs. Secondly, the straight thread sleeve or welded connection are simpler and more convenient to operate than the traditional sleeve grouting technology, the technology is more mature, and the quality is more reliable. In addition, in the prior art, the operation cavities are located on the same horizontal plane of the wall, and therefore, the stressed steel bars 200 need to be connected by primary joints. The inventor considers that the second through holes 102 are arranged on the side surface of the prefabricated elevator shaft body 10 in a staggered mode, and the second through holes 102 are not at the same horizontal height, so that the situation that the stressed steel bars 200 need to be connected through primary joints can be avoided, secondary joints or tertiary joints can be selected, and cost is effectively reduced.

Referring to fig. 5 and 6, another embodiment of the invention also provides a fabricated elevator hoistway prepared using the prefabricated elevator hoistway as described in any of the above-mentioned features.

Optionally, the prefabricated elevator hoistway further comprises a plurality of stressed steel bars 200 and fillers, the number of the prefabricated elevator hoistway and the number of the stressed steel bars 200 are multiple, and the prefabricated elevator hoistway is formed by connecting a plurality of prefabricated elevator hoistways up and down. A plurality of second through holes 102 are formed in the side surface of the prefabricated elevator shaft body 10, the second through holes 102 are formed along the extending direction perpendicular to the first through holes 101, and the second through holes 102 are communicated with the first through holes 101. A plurality of the prefabricated elevator shafts are aligned so that the first through holes 101 of the plurality of the prefabricated elevator shafts are aligned and constitute a through part. At least two stress steel bars 200 are arranged in each through part, the connecting ends of the at least two stress steel bars 200 are connected at the second through hole 102 of the prefabricated elevator shaft, and the filler is filled in the first through hole 101.

Optionally, the filler comprises concrete or mortar.

In addition, the bottom surface of the lowermost prefabricated elevator shaft is connected to the ground, and those skilled in the art will understand that the ground is provided with reserved steel bars for connecting with the stressed steel bars 200 in the prefabricated elevator shaft. The connecting ends of the at least two stressed steel bars 200 are preferably connected through straight thread sleeves or welding.

Referring to fig. 7, another embodiment of the present invention further provides a construction method of a fabricated elevator hoistway, which uses the fabricated elevator hoistway as described in any of the above features, the construction method of the fabricated elevator hoistway including the following steps:

s1: arranging a prefabricated elevator shaft positioned below and arranging a stressed steel bar 200;

s2: arranging the prefabricated elevator shaft positioned above and the prefabricated elevator shaft positioned below in an aligned mode, and arranging stress steel bars 200;

s3: connecting the stressed steel bars 200 in the through part;

s4: the second through hole 102 is sealed, and the filler is filled in the first through hole 101 and the second through hole 102.

In conclusion, the invention has the following beneficial effects:

1. the invention provides a prefabricated elevator shaft for being arranged in a building to install an elevator, comprising a prefabricated elevator shaft body. The prefabricated elevator shaft body is provided with an accommodating space for installing the elevator, a notch is formed in one side face of the prefabricated elevator shaft body and used for reserving a space for a door of the elevator, a plurality of first through holes are formed in the prefabricated elevator shaft body along a first direction, and the first through holes are used for placing stress reinforcing steel bars. Utilize the prefabricated elevartor shaft of this application when installing the elevator additional to current building, need not to reappear a model, set up scaffold frame and concreting, effectively improved the efficiency of construction, and effectively reduced the influence to residential quarter environment and resident family life.

2. At least reserve the first through-hole of 4 times atress reinforcing bars in prefabricated elevator shaft, because first through-hole inner space is great, therefore the fault-tolerant strong, the atress reinforcing bar inserts in the first through-hole very easily.

3. This application first through-hole utilizes pre-buried corrugated metal pipe, waits after the concrete setting shaping corrugated metal pipe stays need not to take out in the prefabricated elevator well, does so and has not only saved the step of taking out the pipe, still because pre-buried corrugated metal pipe makes the lateral wall of first through-hole is crude, helps the combination with the filler of irritating afterwards.

4. The second through holes are arranged on the side face of the prefabricated elevator shaft body in a staggered mode, the second through holes are not located at the same horizontal height, the situation that stressed steel bars need to be connected through primary connectors can be avoided, secondary connectors or tertiary connectors can be selected, and cost is effectively reduced.

The fabricated elevator shaft and the construction method thereof belong to the same inventive concept as the prefabricated elevator shaft, and therefore have the same beneficial effects.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.