CN111980367A - Inverted construction method for elevator shaft - Google Patents
Inverted construction method for elevator shaft Download PDFInfo
- Publication number
- CN111980367A CN111980367A CN202010900493.XA CN202010900493A CN111980367A CN 111980367 A CN111980367 A CN 111980367A CN 202010900493 A CN202010900493 A CN 202010900493A CN 111980367 A CN111980367 A CN 111980367A
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- Prior art keywords
- elevator shaft
- electricity
- saving
- installing
- elevator
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/005—Lift shafts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses an elevator shaft inverted construction method, which comprises the following steps: determining that n electricity-saving elevator shafts are required to be installed, wherein n is equal to the number of the building layers, installing the 1 st to the n-2 nd electricity-saving elevator shafts according to a normal sequence, then installing the nth electricity-saving elevator shaft, finally installing the n-1 th electricity-saving elevator shaft, connecting the nth electricity-saving elevator shaft with the n-1 bottom electricity-saving elevator shaft, and finally integrally welding. The elevator shaft mounting device solves the problem that the elevator shaft is mounted under the condition that no large-scale hoisting tool is arranged, and mounting failure caused by sequential mounting of the elevator shaft from bottom to top is avoided by reversely mounting the last two elevator shafts.
Description
Technical Field
The invention belongs to the field of elevator shaft construction, and particularly relates to an elevator shaft inverted construction method which is used for solving the problem of elevator shaft installation.
Background
In recent years, with the development of buildings, construction units have higher requirements on construction period and construction standards, particularly, the construction period is clearly specified in a contract, the construction period is hard and cannot be changed, and the construction quality and the construction progress are ensured in order to finish the construction within the specified construction period. However, the problem caused by the construction process can be caused in the construction process which can not be avoided, the whole building concrete structure is constructed, and the elevator shaft is installed subsequently. Under the condition that the installation of the building is completed, a crane used in the construction process is withdrawn from a construction position, so that the problem of hoisting the elevator shaft is caused, and meanwhile, the problem of the last two remaining elevators in space is caused due to the traditional installation sequence from bottom to top in the subsequent installation, so that the installation fails.
Disclosure of Invention
The invention provides an elevator shaft inverted construction method, and aims to solve the problem that the installation of an elevator shaft is influenced by a construction process.
The invention adopts the following technical scheme:
an elevator shaft upside-down construction method is implemented by the following steps:
s1, determining the number n of sections of the elevator shaft to be installed according to the structure of the building on the construction drawing, wherein n is equal to the number of layers of the building, and n is a natural number more than or equal to 2;
s2, installing a portal stress frame vertically above the elevator shaft opening, and ensuring that the maximum load of the stress frame is greater than the maximum load required to be borne in the elevator shaft installation process;
s3, placing the first electricity-saving elevator shaft on a transport trolley, and transporting the first electricity-saving elevator shaft to the elevator shaft opening through the transport trolley;
s4, mounting an electric hoist on the stress frame to serve as a vertical lifting device;
s5, taking the elevator shaft as a hoisting center in the hoisting process, installing a manual guide chain in the horizontal direction, and connecting the manual guide chain with a side bottom square tube of the elevator shaft;
s6, firstly, dragging the manual guide chain to enable the first elevator shaft to leave the transport trolley and suspend in the air for a certain height, then starting the electric hoist to lift the elevator shaft upwards and slowly drag the manual guide chain at the same time, reducing the force of the manual guide chain to the horizontal direction of the elevator shaft, adjusting the spatial position of the elevator shaft, and finally enabling the elevator shaft to be only stressed by the force in the vertical direction and unloading the horizontal guide chain;
s7, placing the first elevator shaft on the embedded part by using an electric hoist for spot welding and fixing, and detaching other guide chains on the elevator shaft;
s8, referring to the steps S3-S6, and sequentially installing the elevator shafts to the (n-2) th elevator shaft from bottom to top;
s9, installing the nth electricity-saving elevator shaft, and starting the electric hoist to enable the nth electricity-saving elevator shaft to be lifted to a position where the height from the nth-2 electricity-saving elevator shaft exceeds the height of the nth-1 electricity-saving elevator shaft;
s10, installing the (n-1) th elevator shaft, suspending the (n-1) th elevator shaft, adjusting the position of the (n-1) th elevator shaft, fixing the joint of the (n-2) th elevator shaft and the (n-1) th elevator shaft by spot welding, adjusting the position of the (n) th elevator shaft, performing spot welding on the joint of the (n-2) th elevator shaft and the (n-1) th elevator shaft, and finally sequentially welding n sections of the elevator shaft.
Compared with the prior art, the invention has the advantages that:
the problem of installing the elevartor shaft under the condition that does not have large-scale lifting device is solved to through saving the lift shaft flip-chip with last two, avoided the elevartor shaft from up the installation failure that leads to down in proper order.
Preferably, a further aspect of the present invention is as follows:
step S4 specifically includes: two electric hoists are arranged on the stress frame, one electric hoist is connected with a top center square tube of the elevator shaft, and the other electric hoist is connected with a side middle square tube of the elevator shaft.
In step S1, when n =2, the second power-saving elevator shaft is installed first, and then the first power-saving elevator shaft is installed.
Drawings
FIG. 1 is a schematic illustration of a first power saving shaft installation;
fig. 2 is a schematic view of a second elevator shaft and a third elevator shaft installation;
description of reference numerals:
a stressed frame 1; an electric hoist 2; a first electricity-saving elevator shaft 3; a top surface middle square tube 4; a side middle square tube 5; a side bottom square tube 6; manually chain rewinding 7; a third elevator shaft 8; and a second electricity-saving elevator shaft 9.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that the following description is only for purposes of clearly illustrating the present invention and is not to be taken in a limiting sense.
In this embodiment, a building itself is a three-story structure, and three elevator shafts need to be installed.
Referring to fig. 1 and 2, an elevator shaft upside-down construction method is implemented by the following steps:
and S1, determining that three elevator shafts need to be installed according to the fact that the building on the construction drawing is of a three-layer structure.
S2, a door-shaped stress frame 1 is installed vertically above an elevator shaft opening, the maximum load of the stress frame 1 is guaranteed to be larger than the maximum load required to be borne in the elevator shaft installation process, and the two sides and the top of the stress frame 1 are respectively made of 85 x 8mm I-shaped steel and combined together through welding.
And S3, placing the first electricity-saving elevator shaft 3 on a transport trolley (not shown in the figure) by using a jack and a batten, and transporting the first electricity-saving elevator shaft 3 to the opening of the elevator shaft through the transport trolley.
S4, two electric hoists 2 are installed at the top of the stress frame 1, one of the electric hoists is connected with a top center square tube 4 of the elevator shaft through a chain block and a clamping ring, and the other electric hoist is connected with a side middle square tube 5 of the elevator shaft through the chain block and the clamping ring.
S5, a manual guide chain 7 is installed in the horizontal direction by taking the elevator shaft as a hoisting center in the hoisting process, and the manual guide chain 7 is connected with the bottom square pipe 6 on the side surface of the elevator shaft by a clamping ring.
S6, firstly dragging the manual guide chain 7 to enable the first elevator shaft 3 to leave the transport trolley and suspend in the air for a certain height, then starting the electric hoist 2 to lift the elevator shaft upwards, and slowly dragging the manual guide chain 7 to reduce the force of the manual guide chain 7 to the horizontal direction of the elevator shaft, adjusting the spatial position of the elevator shaft, finally enabling the elevator shaft to be only stressed by the force in the vertical direction, and then unloading the horizontal guide chain 7.
And S7, the first electricity-saving elevator shaft 3 is placed on the embedded part by using the electric hoist 2 to be fixed by spot welding, and other guide chains in the vertical direction on the elevator shaft are detached.
And S8, next, referring to the steps S3-S6, installing a third elevator shaft 8, and enabling the elevator shaft to hang in the air.
S9, the electric hoist 2 is started to raise the third elevator shaft 8 to a height from the second elevator shaft 9 exceeding the installation height of the second elevator shaft 9.
S10, the second electricity-saving elevator shaft 9 is conveyed to the opening of the elevator shaft according to the step S3, a guide chain on the third elevator shaft section 8 and connected with the side surface middle square tube 5 is removed, an electric hoist is connected with the top surface middle square tube of the second electricity-saving elevator shaft 9 through the guide chain and a clamping ring, the electric hoist is additionally arranged on the stress frame 1 in the vertical direction, the additionally arranged electric hoist is connected with the side surface middle square tube of the second electricity-saving elevator shaft 9 through the guide chain and the clamping ring, the second electricity-saving elevator shaft 9 is suspended according to the steps S5-S6, the position of the second electricity-saving elevator shaft 9 is adjusted firstly, the joint of the first electricity-saving elevator shaft 3 and the second electricity-saving elevator shaft 9 is fixed through spot welding, then the position of the third elevator shaft section 8 is adjusted through the electric hoist 2, the joint of the second electricity-saving elevator shaft 9 is subjected to spot welding.
The method can also be applied to the installation of elevator shafts of buildings with other floors, when the number n of the elevator shaft is more than 3, the first section to the (n-2) th electricity-saving elevator shaft are sequentially installed according to the method, then the nth electricity-saving elevator shaft is installed, the height between the nth electricity-saving elevator shaft and the (n-1) th electricity-saving elevator shaft is larger than the height between the nth electricity-saving elevator shaft and the (n-1) th electricity-saving elevator shaft, the (n-1) th electricity-saving elevator shaft is installed, after the (n-1) th electricity-saving elevator shaft is installed in place, the (n-1) th electricity-saving elevator shaft is placed at the joint. When the number n of the elevator shaft layers is equal to 2, the second electricity-saving elevator shaft is installed firstly and then the first electricity-saving elevator shaft is installed.
The foregoing is only a preferred embodiment of the present invention. Various modifications and equivalent changes may be made by those skilled in the art without departing from the spirit and scope of the present invention, and such modifications and changes are intended to be included within the scope of the present invention.
Claims (3)
1. An elevator shaft upside-down construction method is characterized by being implemented through the following steps:
s1, determining the number n of sections of the elevator shaft to be installed according to the structure of the building on the construction drawing, wherein n is equal to the number of layers of the building, and n is a natural number more than or equal to 2;
s2, installing a portal stress frame vertically above the elevator shaft opening, and ensuring that the maximum load of the stress frame is greater than the maximum load required to be borne in the elevator shaft installation process;
s3, placing the first electricity-saving elevator shaft on a transport trolley, and transporting the first electricity-saving elevator shaft to the elevator shaft opening through the transport trolley;
s4, mounting an electric hoist on the stress frame to serve as a vertical lifting device;
s5, taking the elevator shaft as a hoisting center in the hoisting process, installing a manual guide chain in the horizontal direction, and connecting the manual guide chain with a side bottom square tube of the elevator shaft;
s6, firstly, dragging the manual guide chain to enable the first elevator shaft to leave the transport trolley and suspend in the air for a certain height, then starting the electric hoist to lift the elevator shaft upwards and slowly drag the manual guide chain at the same time, reducing the force of the manual guide chain to the horizontal direction of the elevator shaft, adjusting the spatial position of the elevator shaft, and finally enabling the elevator shaft to be only stressed by the force in the vertical direction and unloading the horizontal guide chain;
s7, placing the first elevator shaft on the embedded part by using an electric hoist for spot welding and fixing, and detaching other guide chains on the elevator shaft;
s8, referring to the steps S3-S6, and sequentially installing the elevator shafts to the (n-2) th elevator shaft from bottom to top;
s9, installing the nth electricity-saving elevator shaft, and starting the electric hoist to enable the nth electricity-saving elevator shaft to be lifted to a position where the height from the nth-2 electricity-saving elevator shaft exceeds the height of the nth-1 electricity-saving elevator shaft;
s10, installing the (n-1) th elevator shaft, suspending the (n-1) th elevator shaft, adjusting the position of the (n-1) th elevator shaft, fixing the joint of the (n-2) th elevator shaft and the (n-1) th elevator shaft by spot welding, adjusting the position of the (n) th elevator shaft, performing spot welding on the joint of the (n-2) th elevator shaft and the (n-1) th elevator shaft, and finally sequentially welding n sections of the elevator shaft.
2. The elevator shaft upside-down mounting construction method according to claim 1, wherein the step S4 is specifically: two electric hoists are arranged on the stress frame, one electric hoist is connected with a top center square tube of the elevator shaft, and the other electric hoist is connected with a side middle square tube of the elevator shaft.
3. The elevator shaft upside-down mounting construction method according to claim 1, wherein in step S1, when n =2, the second electricity-saving elevator shaft is installed first, and then the first electricity-saving elevator shaft is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900493.XA CN111980367A (en) | 2020-08-31 | 2020-08-31 | Inverted construction method for elevator shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900493.XA CN111980367A (en) | 2020-08-31 | 2020-08-31 | Inverted construction method for elevator shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111980367A true CN111980367A (en) | 2020-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010900493.XA Withdrawn CN111980367A (en) | 2020-08-31 | 2020-08-31 | Inverted construction method for elevator shaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN111980367A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231148A (en) * | 1978-03-09 | 1980-11-04 | Abc Elevators, Inc. | Elevator erection method |
| CN101713260A (en) * | 2009-10-30 | 2010-05-26 | 中国第一冶金建设有限责任公司 | Mounting method of steel chimney cylinder |
| CN109339399A (en) * | 2018-11-23 | 2019-02-15 | 宝钢钢构有限公司 | A kind of section construction method of steel construction in elevator shaft |
| CN110306864A (en) * | 2019-06-19 | 2019-10-08 | 河南省工建集团有限责任公司 | One kind being based on hyperbatic chimney titanium steel steel inner tube hydraulic lifting apparatus and method |
| CN110541599A (en) * | 2019-08-30 | 2019-12-06 | 迪尔集团有限公司 | Device for lifting inverted chimney steel inner cylinder by using steel twisted rope hydraulic pressure |
| CN209957181U (en) * | 2019-04-09 | 2020-01-17 | 广东易佳梯科技有限公司 | Modularization elevator well monomer and elevator equipment thereof |
-
2020
- 2020-08-31 CN CN202010900493.XA patent/CN111980367A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231148A (en) * | 1978-03-09 | 1980-11-04 | Abc Elevators, Inc. | Elevator erection method |
| CN101713260A (en) * | 2009-10-30 | 2010-05-26 | 中国第一冶金建设有限责任公司 | Mounting method of steel chimney cylinder |
| CN109339399A (en) * | 2018-11-23 | 2019-02-15 | 宝钢钢构有限公司 | A kind of section construction method of steel construction in elevator shaft |
| CN209957181U (en) * | 2019-04-09 | 2020-01-17 | 广东易佳梯科技有限公司 | Modularization elevator well monomer and elevator equipment thereof |
| CN110306864A (en) * | 2019-06-19 | 2019-10-08 | 河南省工建集团有限责任公司 | One kind being based on hyperbatic chimney titanium steel steel inner tube hydraulic lifting apparatus and method |
| CN110541599A (en) * | 2019-08-30 | 2019-12-06 | 迪尔集团有限公司 | Device for lifting inverted chimney steel inner cylinder by using steel twisted rope hydraulic pressure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201124 |