CN109184150A - A kind of existing multi-storey building of cold district installs the prefabricated assembled hoistway of elevator and its construction method additional - Google Patents
A kind of existing multi-storey building of cold district installs the prefabricated assembled hoistway of elevator and its construction method additional Download PDFInfo
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- CN109184150A CN109184150A CN201811270137.3A CN201811270137A CN109184150A CN 109184150 A CN109184150 A CN 109184150A CN 201811270137 A CN201811270137 A CN 201811270137A CN 109184150 A CN109184150 A CN 109184150A
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 94
- 239000010959 steel Substances 0.000 claims abstract description 94
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 5
- 230000004992 fission Effects 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 2
- 101150054854 POU1F1 gene Proteins 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
A kind of existing multi-storey building of cold district installs the prefabricated assembled hoistway of elevator and its construction method additional, is related to a kind of elevator shaft and its construction method.Pre-buried foundation pit is set on foundation platform and is connected thereto and is integrated, bottom hoistway is fixed on pre-buried foundation pit, a fixed at least segment standard layer hoistway is installed above bottom hoistway, fixed top layer hoistway is installed above the index bed hoistway of the top, bottom hoistway, top layer hoistway and index bed hoistway are the cuboid framework structure of steel-pipe welding, and it is perfused with concrete in four vertical steel pipes of cuboid framework structure and constitutes steel core concrete column, two steel coupling beam horizontal alignments are arranged and existing multi-storey building and hoistway with steel structure component groups are fixedly connected, vestibule ground layer is equipped in two steel coupling beams.Structure is simple, high construction efficiency, easy for installation, using prefabricated construction, can effectively shorten the duration, simple and convenient, saves cost.
Description
Technical field
The present invention relates to a kind of elevator shaft and its construction method, especially a kind of existing multi-storey building of cold district is installed additional
The prefabricated assembled hoistway of elevator and its construction method.
Background technique
With the quickening of aging of population process and the increasingly raising of Living consumption, existing multi-storey building installs elevator additional
Demand increase increasingly.The extremely frigid zones of cold district especially northern China, general existing multi-storey building is by economic development water
Gentle technical specification limitation, not set elevator or reserved elevator shaft, have not adapted to the people to accessible and easypro
The pursuit of the living quality of adaptive installs the current demand that elevator has become resident additional to existing multi-storey building.
It installs elevator additional and first has to independently installed hoistway, install elevator additional at present and be commonly hoistway with steel structure, generally use profile
Assembly is not only constructed cumbersome, but also consumes a large amount of working hours, and the expense of generation is also more.
With the rise and development of assembled architecture, new direction also is opened to install elevator additional, therefore, designs a kind of knot
Structure is simple, high construction efficiency, prefabricated assembled hoistway easy for installation, is a technical problem to be solved urgently.
Summary of the invention
The purpose of the present invention is to provide a kind of existing multi-storey building of cold district install additional the prefabricated assembled hoistway of elevator and
Its construction method, its structure is simple, high construction efficiency, easy for installation, using prefabricated construction, can effectively shorten the duration, letter
Folk prescription just, saves cost.
Realize that above-mentioned purpose, the present invention take following technical proposals: a kind of existing multi-storey building installation elevator of cold district
Prefabricated assembled hoistway, pit basis, hoistway with steel structure component groups and multiple steel knots including being prefabricated construction
Structure vestibule, the pit basis include be reinforced concrete structure and mutually matched pre-buried foundation pit and foundation platform, it is described
Foundation platform is embedded in the external ground of existing multi-storey building, and the pre-buried foundation pit is set on foundation platform and is connected thereto
It is integrated, the hoistway with steel structure component groups include bottom hoistway, top layer hoistway and an at least segment standard layer hoistway, the bottom
Hoistway is fixed on pre-buried foundation pit, and the fixed at least segment standard layer hoistway of installation, is located at most upper above bottom hoistway
The fixed top layer hoistway of installation above the index bed hoistway of side, the height point of bottom hoistway, top layer hoistway and index bed hoistway
Layer height not with the first floor of existing multi-storey building, top layer and index bed is arranged in a one-to-one correspondence, bottom hoistway, top layer hoistway and standard
Layer hoistway is the cuboid framework structure of steel-pipe welding, and is perfused in four vertical steel pipes of cuboid framework structure mixed
Solidifying soil constitutes steel core concrete column, and each Steel corridor includes vestibule ground layer and two steel coupling beams, and described two
Steel coupling beam horizontal alignment setting and by the corresponding position phase fixed of the wall face of existing multi-storey building and hoistway with steel structure component groups
It is fixed, vestibule ground layer is equipped in two steel coupling beams.
A kind of existing multi-storey building of cold district of the invention installs the construction method of the prefabricated assembled hoistway of elevator additional, including
Following steps:
Step 1: pit basis, hoistway with steel structure component groups and Steel corridor are prefabrication, and it is existing that fission is transported to construction
, it is lifted in order to designated position, splicing is assembled, and every layer of wall face suitable location of existing multi-storey building, which opens up, enters
Mouthful, and elevator pit is dug in external ground corresponding position, foundation platform lifting is lain in into bottom in elevator pit in place, basis is held
Platform upper surface is levelling by sitting slurry processes progress, lifts pre-buried foundation pit later and is mounted on foundation platform, passes through welded reinforcement end
The two is connected as one with the mode of teeming concrete, in the pre-buried junction steel plate in pre-buried foundation pit opening end face quadrangle；
Step 2: by the bottom hoistway lifting junction steel plate welding pre-buried in place and with pre-buried foundation pit opening end face quadrangle or bolt
It is fixed, index bed hoistway and top layer hoistway are successively lifted according to the number of plies of existing multi-storey building later, welded by connector
Fixation is connect or is bolted, while installation fixed standard layer hoistway every time, by two steel coupling beams of a Steel corridor
It is fixedly connected by pre-embedded bolt and the wall face of existing multi-storey building and the corresponding position of hoistway with steel structure component groups, two steel
Vestibule ground layer is laid in coupling beam.
Compared with prior art, the beneficial effects of the present invention are: the present invention can be solution cold district especially China
The existing multi-storey building in the north installs elevator additional and provides convenience, and structure is simple, high construction efficiency, easy for installation, using prefabricated assembled knot
Structure, can effectively shorten the duration, simple and convenient, save cost, and using steel core concrete column, bearing capacity is high, and moulding and good toughness resist
Shock stability is strong, has high promotional value.
Detailed description of the invention
Fig. 1 is the axonometric drawing of bottom hoistway of the invention；
Fig. 2 is the axonometric drawing of index bed hoistway of the invention；
Fig. 3 is the axonometric drawing of top layer hoistway of the invention；
Fig. 4 is the structural schematic diagram for the construction method that specific embodiment nine discloses；
Fig. 5 is the attachment structure schematic diagram of Steel corridor of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in the present invention
It states, it is clear that described embodiment is only a part of the embodiment of invention, instead of all the embodiments, based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
Specific embodiment 1: the invention discloses a kind of existing multi-storey buildings of cold district to install additional as shown in Fig. 1 ~ Fig. 5
The prefabricated assembled hoistway of elevator, pit basis, hoistway with steel structure component groups and multiple including being prefabricated construction
Steel corridor, the pit basis is including being reinforced concrete structure and mutually matched pre-buried foundation pit 1 and foundation platform
2, the foundation platform 2 is embedded in the external ground of existing multi-storey building, and the pre-buried foundation pit 1 is set on foundation platform 2
And be connected thereto and be integrated, the hoistway with steel structure component groups include bottom hoistway 3, top layer hoistway 4 and an at least segment standard layer
Hoistway 5, the bottom hoistway 3 are fixed on pre-buried foundation pit 1, and a fixed at least segment mark is installed above bottom hoistway 3
Quasi- layer hoistway 5 installs the fixed top layer hoistway 4, bottom hoistway 3, top layer hoistway above the index bed hoistway 5 of the top
4 and layer height of the height respectively with the first floor of existing multi-storey building, top layer and index bed of index bed hoistway 5 be arranged in a one-to-one correspondence,
Bottom hoistway 3, top layer hoistway 4 and index bed hoistway 5 are the cuboid framework structure of steel-pipe welding, and cuboid framework structure
Four vertical steel pipes in be perfused with concrete and constitute steel core concrete column 8, each Steel corridor includes vestibule
Face base 6 and two steel coupling beams 7, two steel coupling beams, 7 horizontal alignment setting and by the wall face and steel of existing multi-storey building
The corresponding position of structure hoistway component groups is fixedly connected, and is equipped with vestibule ground layer 6 in two steel coupling beams 7.
Specific embodiment 2: as shown in figure 4, present embodiment is made furtherly to specific embodiment one
Bright, the hoistway with steel structure component groups and multiple Steel corridors are mounted on curtain wall 13.
Specific embodiment 3: as shown in figure 4, present embodiment is made furtherly to specific embodiment two
It is bright, deformation joint is equipped between the corresponding curtain wall 13 of each Steel corridor and the wall face of existing multi-storey building.
Specific embodiment 4: as shown in Figure 1, 2, 3, present embodiment is to specific embodiment one or specific embodiment party
The further explanation that formula two is made, the side corresponding with Steel corridor of index bed hoistway 5 are fixed with door by steel-pipe welding
Head beam 9 and two doorway columns 10, excess-three side middle position are fixed with web beam 11, the bottom hoistway by steel-pipe welding
3 and its four piece steel core concrete column 8 lower ends lengthening setting composition four support legs 12 identical as index bed hoistway 5, it is described
4 four side middle position of top layer hoistway equally passes through steel-pipe welding and is fixed with web beam 11.
Specific embodiment 5: as shown in figure 4, present embodiment is made furtherly to specific embodiment four
Bright, four support legs 12 that the pre-buried 1 open end face quadrangle of foundation pit is embedded with junction steel plate and bottom hoistway 3 are connected and fixed,
2 upper surface of foundation platform is levelling by sitting slurry processes progress.
Specific embodiment 6: as shown in figure 4, present embodiment is made furtherly to specific embodiment five
Bright, between the bottom hoistways 3 of the hoistway with steel structure component groups, top layer hoistway 4 and an at least segment standard layer hoistway 5 connection position
It sets and is welded or be bolted respectively fixation by connector, two 7 both ends of steel coupling beam point of each Steel corridor
It is not fixedly connected by pre-embedded bolt and the wall face of existing multi-storey building and the corresponding position of hoistway with steel structure component groups.
Specific embodiment 7: as shown in Figure 1, 2, 3, present embodiment be specific embodiment one is made it is further
Illustrate, the cross section of four steel core concrete columns 8 of the bottom hoistway 3, top layer hoistway 4 and index bed hoistway 5 is rectangular
Or it is round.
Specific embodiment 8: as shown in figure 4, present embodiment is made furtherly to specific embodiment one
Bright, the vestibule ground layer 6 can use prefabricated board, and be laid with cold-proof polyphenyl foam plastic plate insulating layer and cast-in-place on it
Concrete leveling layer.
Specific embodiment 9: as shown in Fig. 1 ~ Fig. 5, present embodiment is disclosed described in a kind of specific embodiment one
A kind of existing multi-storey building of cold district installs the construction method of the prefabricated assembled hoistway of elevator additional, and the construction method includes as follows
Step:
Step 1: pit basis, hoistway with steel structure component groups and Steel corridor are prefabrication, and it is existing that fission is transported to construction
, it is lifted in order to designated position, splicing is assembled, and every layer of wall face suitable location of existing multi-storey building, which opens up, enters
Mouthful, and elevator pit is dug in external ground corresponding position, the lifting of foundation platform 2 is lain in into bottom in elevator pit in place, basis
2 upper surface of cushion cap is levelling by sitting slurry processes progress, lifts pre-buried foundation pit 1 later and is mounted on foundation platform 2, passes through welded reinforcement
The two is connected as one by end and the mode of teeming concrete, in the pre-buried 1 pre-buried junction steel plate in open end face quadrangle of foundation pit；
Step 2: the junction steel plate welding or spiral shell pre-buried in place and with pre-buried 1 open end face quadrangle of foundation pit by the lifting of bottom hoistway 3
Bolt is fixed, and successively lifts index bed hoistway 5 and top layer hoistway 4 according to the number of plies of existing multi-storey building later, by connector into
Row welding is bolted fixation, while installation fixed standard layer hoistway 5 every time, by two steel of a Steel corridor
Coupling beam 7 is fixedly connected by pre-embedded bolt and the wall face of existing multi-storey building and the corresponding position of hoistway with steel structure component groups,
Vestibule ground layer 6 is laid in two steel coupling beams 7.
Specific embodiment 10: present embodiment is the further explanation made to specific embodiment nine, steel construction connects
Vertical elliptical aperture can be used in the corresponding mounting hole of the pre-embedded bolt of corridor, be finely adjusted pre-embedded bolt can in vertical orientation, with
The additional stress generated due to Steel corridor, hoistway with steel structure component groups and existing multi-storey building differential settlement is discharged, together
When can reduce destruction caused by the imperative coordination distortional stress as caused by earthquake load, temperature load etc., Steel corridor
Collar tie beam lateral surface may be selected with the link position of existing multi-storey building, guarantee attachment degree and bonding strength, improve hoistway with steel structure
The overall stability of component groups.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in the form of others dress body.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that by all in the meaning and scope for the condition of equivalent for falling in claim
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of existing multi-storey building of cold district installs the prefabricated assembled hoistway of elevator additional, it is characterised in that: including being prefabricated
Pit basis, hoistway with steel structure component groups and the multiple Steel corridors of fabricated construction, the pit basis include being
Reinforced concrete structure and mutually matched pre-buried foundation pit (1) and foundation platform (2), the foundation platform (2) are embedded in existing
In the external ground of multi-storey building, the pre-buried foundation pit (1), which is set on foundation platform (2) and is connected thereto, to be integrated, described
Hoistway with steel structure component groups include bottom hoistway (3), top layer hoistway (4) and an at least segment standard layer hoistway (5), the bottom well
Road (3) is fixed on pre-buried foundation pit (1), the fixed at least segment standard layer hoistway of installation above bottom hoistway (3)
(5), the fixed top layer hoistway (4) of installation, bottom hoistway (3), top layer hoistway above the index bed hoistway (5) of the top
(4) and the height of index bed hoistway (5) is set with the layer height of the first floor of existing multi-storey building, top layer and index bed one-to-one correspondence respectively
It sets, bottom hoistway (3), top layer hoistway (4) and index bed hoistway (5) are the cuboid framework structure of steel-pipe welding, and rectangular
It is perfused with concrete in four vertical steel pipes of body frame structure and constitutes steel core concrete column (8), each steel construction connects
Corridor includes vestibule ground layer (6) and two steel coupling beams (7), and two steel coupling beams (7) horizontal alignment is arranged and will be existing more
The wall face of layer house and the corresponding position of hoistway with steel structure component groups are fixedly connected, and are equipped with vestibule on two steel coupling beams (7)
Ground layer (6).
2. the existing multi-storey building of a kind of cold district according to claim 1 installs the prefabricated assembled hoistway of elevator additional, special
Sign is: the hoistway with steel structure component groups and multiple Steel corridors are mounted on curtain wall (13).
3. the existing multi-storey building of a kind of cold district according to claim 2 installs the prefabricated assembled hoistway of elevator additional, special
Sign is: being equipped with deformation joint between the corresponding curtain wall (13) of each Steel corridor and the wall face of existing multi-storey building.
4. the existing multi-storey building of a kind of cold district according to claim 1 or 2 installs the prefabricated assembled hoistway of elevator additional,
Be characterized in that: index bed hoistway (5) side corresponding with Steel corridor is fixed with Men Touliang (9) and two by steel-pipe welding
Root doorway column (10), excess-three side middle position are fixed with web beam (11) by steel-pipe welding, the bottom hoistway (3) with
Index bed hoistway (5) is identical and its four steel core concrete column (8) lower ends lengthen setting and constitute four support legs (12), institute
It states (4) four side middle position of top layer hoistway and equally passes through steel-pipe welding and be fixed with web beam (11).
5. the existing multi-storey building of a kind of cold district according to claim 4 installs the prefabricated assembled hoistway of elevator additional, special
Sign is: pre-buried foundation pit (1) open end face quadrangle is embedded with four support legs (12) of junction steel plate Yu bottom hoistway (3)
It is connected and fixed, foundation platform (2) upper surface is levelling by sitting slurry processes progress.
6. the existing multi-storey building of a kind of cold district according to claim 5 installs the prefabricated assembled hoistway of elevator additional, special
Sign is: bottom hoistway (3), top layer hoistway (4) and an at least segment standard layer hoistway (5) for the hoistway with steel structure component groups it
Between link position pass through connector respectively and welded or be bolted fixation, two steel of each Steel corridor connect
Beam (7) both ends pass through the wall face of pre-embedded bolt and existing multi-storey building and the corresponding position phase of hoistway with steel structure component groups respectively
Fixed is fixed.
7. the existing multi-storey building of a kind of cold district according to claim 1 installs the prefabricated assembled hoistway of elevator additional, special
Sign is: the bottom hoistway (3), top layer hoistway (4) and index bed hoistway (5) four steel core concrete columns (8) it is transversal
Face is rectangular or round.
8. the existing multi-storey building of a kind of cold district according to claim 1 installs the prefabricated assembled hoistway of elevator additional, special
Sign is: the vestibule ground layer (6) can use prefabricated board, and be laid with cold-proof polyphenyl foam plastic plate insulating layer on it
And cast-in-place concrete screed-coat.
9. the construction that a kind of existing multi-storey building of cold district according to claim 1 installs the prefabricated assembled hoistway of elevator additional
Method, it is characterised in that: the construction method includes the following steps:
Step 1: pit basis, hoistway with steel structure component groups and Steel corridor are prefabrication, and it is existing that fission is transported to construction
, it is lifted in order to designated position, splicing is assembled, and every layer of wall face suitable location of existing multi-storey building, which opens up, enters
Mouthful, and elevator pit is dug in external ground corresponding position, foundation platform (2) lifting is lain in into bottom in elevator pit, base in place
Plinth cushion cap (2) upper surface is levelling by sitting slurry processes progress, lifts pre-buried foundation pit (1) later and is mounted on foundation platform (2), passes through
The two is connected as one by welded reinforcement end and the mode of teeming concrete, pre-buried in pre-buried foundation pit (1) open end face quadrangle
Junction steel plate；
Step 2: by bottom hoistway (3) lifting, the junction steel plate pre-buried in place and with pre-buried foundation pit (1) open end face quadrangle is welded
Or bolt is fixed, and is successively lifted index bed hoistway (5) and top layer hoistway (4) according to the number of plies of existing multi-storey building later, is passed through
Connector is welded or is bolted fixation, and while installation fixed standard layer hoistway (5) every time, a steel construction is connected
Two steel coupling beams (7) of corridor pass through the corresponding position of pre-embedded bolt and the wall face of existing multi-storey building and hoistway with steel structure component groups
It sets and is fixedly connected, be laid with vestibule ground layer (6) on two steel coupling beams (7).
10. construction method according to claim 9, it is characterised in that: the corresponding installation of the pre-embedded bolt of Steel corridor
Vertical elliptical aperture can be used in hole, be finely adjusted pre-embedded bolt can in vertical orientation, to discharge due to Steel corridor, steel knot
The additional stress that structure hoistway component groups and existing multi-storey building differential settlement generate, at the same can reduce due to earthquake load,
It is destroyed caused by imperative coordination distortional stress caused by temperature load etc., the link position of Steel corridor and existing multi-storey building
Collar tie beam lateral surface may be selected, guarantee attachment degree and bonding strength, improve the overall stability of hoistway with steel structure component groups.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811270137.3A CN109184150A (en) | 2018-10-29 | 2018-10-29 | A kind of existing multi-storey building of cold district installs the prefabricated assembled hoistway of elevator and its construction method additional |
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|---|---|---|---|
| CN201811270137.3A CN109184150A (en) | 2018-10-29 | 2018-10-29 | A kind of existing multi-storey building of cold district installs the prefabricated assembled hoistway of elevator and its construction method additional |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109941867A (en) * | 2019-03-01 | 2019-06-28 | 北京筑福国际抗震技术有限责任公司 | A kind of additional elevator shaft of existing building is using assembled steel-frame structure and its construction method |
| CN110485557A (en) * | 2019-09-12 | 2019-11-22 | 潍坊达福嘉建筑配套工程有限公司 | A kind of steel construction elevator quick assembled type vestibule |
| CN110778145A (en) * | 2019-12-11 | 2020-02-11 | 杭州西奥电梯现代化更新有限公司 | Steel frame connecting structure and method for integrally assembled additional elevator |
| CN110924630A (en) * | 2019-12-05 | 2020-03-27 | 北京亟光电梯科技有限公司 | Integrated steel structure hoistway with waiting hall and construction process thereof |
| CN111350372A (en) * | 2020-03-23 | 2020-06-30 | 河北省建筑科学研究院有限公司 | Assembly type rapid reconstruction method for existing house with additionally-installed elevator |
| CN115788103A (en) * | 2023-02-08 | 2023-03-14 | 集束智能装配科技有限公司 | Construction method of elevator shaft modular assembly structure system |
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