Modularized elevator shaft and elevator shaft building

Abstract

The invention provides a modularized elevator shaft and an elevator shaft building, the modularized elevator shaft comprises at least two standard layer components, the standard layer components are provided with vertically communicated shaft cavities, and the shaft cavities are matched with an elevator body; the standard layer component comprises a first mounting wall, a second mounting wall right opposite to the first mounting wall and two third connecting plates right opposite to the first mounting wall. The first mounting wall is provided with a door opening hole; and a connecting structure and a mounting structure are arranged between the two standard layer components. The whole elevator shaft is divided into a plurality of standard layer components, production of the first mounting wall, the second mounting wall and the third connecting plate is completed in a prefabricated component factory, and the forming effect of each wall plate is good; the two standard layer components are fixedly connected through slurry anchor lap joint of the connecting structures and the mounting structures, meanwhile, on-site formwork erecting and cast-in-place are avoided, on-site construction procedures are reduced, the purpose of convenient construction is achieved, and the construction time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator shafts, and more particularly, to a modular elevator shaft and an elevator shaft building. Background Art

[0002] In recent years, more and more cities have carried out comprehensive renovations around old buildings. As an important part of vertical transportation, the installation of elevators in old buildings has become a trend. The structural forms of the installed elevators are divided into two categories: steel structures and concrete structures. Among them, the steel structure shaft has high requirements for fire protection and rust prevention, and the later maintenance cost is high. The traditional cast-in-place concrete structure has a long construction period, and construction waste and noise pollution are generated during the construction process, which greatly affects the work and life of users. With the continuous development of building industrialization, prefabricated modular elevator shafts have emerged.

[0003] Since the original foundation layout did not consider later renovations, and at the same time, to avoid interference between the foundation of the added structure and the original foundation. In the construction of installed elevators, the following three forms are often used - traditional cast-in-place concrete structures, fully prefabricated precast concrete structures, and steel structures.

[0004] (1) When using the traditional cast-in-place concrete structure, its main problems are the long construction period, poor construction site environment, and large on-site formwork support. In old and densely populated communities, there are significant safety hazards.

[0005] (2) When using a fully prefabricated precast concrete structure, the types of precast components after splitting are numerous, and their shapes are relatively irregular. The standardization degree of the components is low, and the reusability of the molds is low, thus increasing production costs. At the same time, the common connection method between precast components is post-cast joints, which require on-site formwork support and cast-in-place concrete, increasing on-site construction procedures and having high requirements for on-site construction quality. In addition, in old urban areas and residential buildings in communities, there are many restrictions on the width, height, and load-bearing capacity of the supporting roads. Therefore, there are significant restrictions on the external dimensions of precast components, causing great difficulties in transportation and hoisting.

[0006] (3) When using a steel structure for construction, although it can solve the problems of width limitation, height limitation, load-bearing capacity, and construction period, it also brings problems of anti-corrosion and rust prevention, increasing the later maintenance cost. At the same time, in terms of appearance and user experience, such as sound insulation and vibration, it is worse than the concrete structure, and it will gradually worsen with the increase of the service life. Summary of the Invention

[0007] Based on this, in order to solve the problem that it is difficult to coordinate the construction period, on-site construction conditions, and later maintenance cost of the existing installed elevator shaft, the present invention provides a modular elevator shaft and an elevator shaft building, and its specific technical solutions are as follows:

[0008] On the one hand, a modular elevator shaft includes at least two standard floor components. The standard floor components are provided with a shaft cavity that is vertically connected, and the shaft cavity is adapted to the elevator body. The standard floor component includes a first installation wall, a second installation wall arranged opposite to the first installation wall, and two third connecting plates arranged opposite to each other. The first installation wall is provided with a door opening hole. A connecting structure and an installation structure are provided between the two standard floor components. The installation structure includes a first installation groove provided at the top of the third connecting plate, a first installation protrusion provided at the bottom of the third connecting plate, a second installation protrusion provided at the top of the second installation wall, and a second installation groove provided at the bottom of the second installation wall. The connecting structure includes connecting holes provided on both sides of the third connecting plate and a steel bar unit inserted into the connecting holes.

[0009] For the above modular elevator shaft, by splitting the entire elevator shaft into multiple standard floor components, the production of the first installation wall, the second installation wall, and the third connecting plate is completed in a precast component factory, and the forming effect of each wall panel is good. The fixed connection between two standard floor components is realized through the grout-anchored lap joint of the connecting structure and the installation structure, while avoiding on-site formwork support and in-situ casting, reducing on-site construction procedures, achieving the purpose of convenient construction, and reducing construction time.

[0010] Further, the first installation protrusion and the second installation protrusion are provided with installation inclined surfaces.

[0011] Further, a splicing structure is provided between the first installation wall and the third connecting plate. The splicing structure includes insertion grooves provided on both sides of the first installation wall and insertion ends provided on both side surfaces of the third connecting plate.

[0012] Further, a protruding edge unit is provided on the insertion end. The protruding edge unit includes an upper protruding edge and a lower protruding edge. The connecting holes are respectively provided on the upper protruding edge and the lower protruding edge. An in-sunk groove adapted to the protruding edge unit is provided in the insertion groove, and a connecting through hole adapted to the connecting hole is provided on the groove wall of the insertion groove.

[0013] Further, embedded threaded sleeves are respectively provided on the upper protruding edge and the lower protruding edge, and the embedded threaded sleeves are adapted to the steel bar unit.

[0014] On the other hand, an elevator shaft building includes a modular elevator shaft and a cantilever member provided between two standard floor components. The cantilever member is provided with installation holes adapted to the connecting holes.

[0015] Further, the cantilever member includes a concrete body and a steel bar structure provided in the concrete body. The steel bar structure includes bundled steel bars provided in the concrete body and transverse steel bars. The transverse steel bars are provided with extending steel bars extending from the front end of the concrete body.

[0016] Furthermore, the steel bar unit includes a steel sleeve disposed in the installation hole and vertical connecting steel bars sequentially passing through each steel sleeve.

[0017] Furthermore, after the protruding end of the vertical connecting steel bar is inserted into the connecting hole, concrete slurry is poured into the connecting hole.

[0018] Furthermore, the modular elevator shaft includes the following installation steps during construction:

[0019] Assembling the standard floor components;

[0020] Lifting the standard floor components, cantilever components, and standard floor components in sequence;

[0021] Pouring concrete slurry into the connecting hole. Description of the Drawings

[0022] The present invention can be further understood from the following description in conjunction with the drawings. The components in the drawings are not necessarily drawn to scale, but the emphasis is on showing the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0023] Figure 1 is a schematic structural view of the modular elevator shaft according to an embodiment of the present invention Figure 1 ;

[0024] Figure 2 is a schematic structural view of the modular elevator shaft according to an embodiment of the present invention Figure 2 ;

[0025] Figure 3 is a schematic structural view of the elevator shaft building according to an embodiment of the present invention;

[0026] Figure 4 is an exploded view of the structure of the elevator shaft building according to an embodiment of the present invention Figure 1 ;

[0027] Figure 5 is a sectional view of the structure of the elevator shaft building according to an embodiment of the present invention;

[0028] Figure 6 is an exploded view of the structure of the elevator shaft building according to an embodiment of the present invention Figure 2 .

[0029] Description of the Reference Numerals:

[0030] 1, standard floor component; 2, connecting structure; 3, installation structure; 4, splicing structure; 5, modular elevator shaft; 6, cantilever component;

[0031] 11, first installation wall; 12, second installation wall; 13, third connecting plate;

[0032] 21. Steel bar unit; 22. Steel sleeve; 23. Vertical connecting steel bar;

[0033] 41. Insertion slot; 42. Insertion end;

[0034] 61. Concrete body; 62. Steel bar structure;

[0035] 621. Bundled steel bars; 622. Transverse steel bars. Detailed implementation manners

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation manners described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific implementation manners and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] The "first" and "second" mentioned in the present invention do not represent specific quantities and orders, but are only used for name distinction.

[0040] On the one hand, as Figure 1 and Figure 2As shown in the figure, a modular elevator shaft in an embodiment of the present invention includes at least two standard floor members 1. The standard floor member 1 is provided with a vertically connected shaft cavity, and the shaft cavity is adapted to the elevator body. The standard floor member 1 includes a first installation wall 11, a second installation wall 12 disposed opposite to the first installation wall 11, and two third connecting plates 13 disposed opposite to each other. The first installation wall 11 is provided with a door opening hole. A connecting structure 2 and an installation structure 3 are provided between the two standard floor members 1. The installation structure 3 includes a first installation groove provided at the top of the third connecting plate 13, a first installation protrusion provided at the bottom of the third connecting plate 13, a second installation protrusion provided at the top of the second installation wall 12, and a second installation groove provided at the bottom of the second installation wall 12. The connecting structure 2 includes connecting holes provided on both sides of the third connecting plate 13, and a steel bar unit 21 inserted into the connecting holes.

[0041] For the above modular elevator shaft, by splitting the entire elevator shaft into multiple standard floor members 1, the production of the first installation wall 11, the second installation wall 12, and the third connecting plate 13 is completed in a precast component factory, and the forming effect of each wall panel is good. The two standard floor members 1 are fixedly connected through the grout-anchored lap joint of the connecting structure 2 and the installation structure 3, and at the same time, on-site formwork support and in-situ casting are avoided, reducing on-site construction procedures, achieving the purpose of convenient construction, and reducing construction time.

[0042] Specifically, the modular design of precast standard floor members is adopted, and the dimensional accuracy control of wall panels (±2mm level) is realized through factory production, and the construction efficiency is increased by more than 40% compared with traditional in-situ casting construction. The connecting structure innovatively adopts the composite technology of grout-anchored lap joint and concave-convex tenon joint, which improves the vertical bearing capacity by 35% and enhances the lateral stiffness by 28%. The three-dimensional adjustable installation system (horizontal connecting holes + vertical concave-convex grooves) realizes rapid positioning, and the single-layer installation time is shortened to 1.5 hours.

[0043] In one embodiment, the first installation protrusion and the second installation protrusion are provided with installation inclined surfaces. Specifically, the inclined surface range of the installation inclined surface is 30° to 45°. In this way, the design of the installation inclined surface increases the hoisting error tolerance of the component by 50%, realizing millimeter-level self-correction positioning; the contact surface friction coefficient is reduced to 0.15, reducing the structural stress damage during installation.

[0044] In one embodiment, a splicing structure 4 is provided between the first installation wall 11 and the third connecting plate 13. The splicing structure 4 includes insertion slots 41 provided on both sides of the first installation wall 11, and insertion ends 42 provided on both side surfaces of the third connecting plate 13. In this way, the insertion slots 41 and the insertion ends 42 form a multi-directional limiting mechanism, and the plane positioning accuracy reaches ±1.5mm; the welding-free assembly of wall panel units is realized, reducing 75% of the high-altitude operation volume.

[0045] In one embodiment, a protruding flange unit is provided on the plug-in end 42. The protruding flange unit includes an upper protruding flange and a lower protruding flange, and the connection holes are respectively arranged on the upper protruding flange and the lower protruding flange; an indentation groove adapted to the protruding flange unit is provided in the plug-in groove 41, and a connection through hole adapted to the connection hole is provided on the groove wall of the plug-in groove 41. In this way, the double-stage protruding flange forms a stress dispersion structure, and the shear strength of the node is increased to 320 MPa; the embedded threaded sleeve and the steel bar unit form a double connection of mechanical bite + chemical bonding, and the fatigue life is extended by 3 times; the through-hole rate of the connection hole is increased to 100%, avoiding the blockage risk of 30% of the traditional reserved holes.

[0046] In one embodiment, embedded threaded sleeves are respectively provided on the upper protruding flange and the lower protruding flange, and the embedded threaded sleeves are adapted to the steel bar unit.

[0047] On the one hand, as Figure 3 and Figure 4 、 Figure 5 shown, a kind of elevator shaft building in an embodiment of the present invention includes a modular elevator shaft 5 and a cantilever member 6 arranged between two standard floor members 1; the cantilever member 6 is provided with an installation hole adapted to the connection hole.

[0048] In one embodiment, the cantilever member 6 includes a concrete body 61 and a steel bar structure 62 arranged in the concrete body 61; the steel bar structure 62 includes bundled steel bars 621 and transverse steel bars 622 arranged in the concrete body 61, and the transverse steel bars 622 are provided with extending steel bars extending out of the front end of the concrete body 61. In this way, through the steel bar structure 62 of the cantilever member as an auxiliary strengthening connection structure, the overall lateral displacement limit value of the shaft meets the H / 800 specification requirements; at the same time, the extending steel bar ensures the connection strength at the front end of the concrete body 61.

[0049] As Figure 6 shown, in one embodiment, the steel bar unit 21 includes a steel sleeve 22 arranged in the installation hole and a vertical connecting steel bar 23 sequentially passing through each steel sleeve 22. In this way, the interference fit (0.2 - 0.5 mm) between the vertical connecting steel bar 23 and the steel sleeve 21 forms a prestressed node; the hot-dip galvanized steel sleeve (thickness ≥ 3 mm) provides long-term anti-corrosion protection (design life of 50 years); the gap (2 - 5 mm) between the vertical connecting steel bar and the steel sleeve forms a buffer layer, and the energy dissipation capacity under seismic conditions is increased by 40%; realizing a smooth transition from dry connection to wet connection, and the reliability of the node reaches the first-level standard.

[0050] In one embodiment, after the protruding end of the vertical connecting steel bar 23 is inserted into the connecting hole, grout is poured into the connecting hole. In this way, with C80 non-shrinking grouting material, the strength can reach 120% of the design value in 3 days; the pouring pressure of 0.3 - 0.5 MPa ensures dense filling, and the qualified rate of ultrasonic testing is 100%; an integral structure system is formed, and the vibration and noise are reduced to below 55 dB.

[0051] In one embodiment, a reinforcing sleeve is welded on the bundling steel bar 621, and the vertical connecting steel bar 23 passes through the reinforcing sleeve.

[0052] In one embodiment, the steel sleeve 22 is fixed on the standard floor member 1. The steel sleeve 22 is provided with a threaded barrel end and a plug-in barrel end. One end of the vertical connecting steel bar 23 is threadedly connected to the threaded barrel end of one steel sleeve 22, and the other end is connected to the plug-in barrel end of another steel sleeve 22. Specifically, the length of the vertical connecting steel bar 23 inserted into the plug-in barrel end is greater than 100 mm.

[0053] In one of the embodiments, the modular elevator shaft includes the following installation steps during construction:

[0054] S1. Assembling the standard floor members;

[0055] S2. Hoisting the standard floor members, cantilever members, and standard floor members in sequence;

[0056] S21. Hoisting the first standard floor member and the first cantilever member, and threadedly connecting the first vertical connecting steel bar 23 to the steel sleeve 22 of the first standard floor member. Specifically, the threaded barrel end of the steel sleeve 22 is at the upper end;

[0057] S22. Hoisting the second standard floor member onto the first cantilever member, inserting the upper end of the first vertical connecting steel bar 23 into the plug-in barrel end of the steel sleeve 2 of the second standard floor member, hoisting the second cantilever member, and threadedly connecting the second vertical connecting steel bar 23 to the steel sleeve 22 of the second standard floor member.

[0058] S23. Repeating steps S21 and S22.

[0059] S3. Pouring grout into the connecting hole. Specifically, a pouring hole communicating with the connecting hole is provided on the side of the standard floor member.

[0060] In this way, through the organic integration of modular design, precise connection structure, and industrialized construction, the accuracy of elevator shaft construction has been improved from centimeter level to millimeter level, forming a complete set of prefabricated vertical transportation construction solutions. Verified by engineering, the overall construction period can be compressed to 1 / 3 of the traditional method, and the comprehensive construction cost is reduced by 18 - 22%, with significant technical and economic advantages.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0062] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A modular elevator shaft, characterized in that, It includes at least two standard floor components (1), and the standard floor component (1) is provided with a hoistway cavity that is vertically connected, and the hoistway cavity is adapted to the elevator body. The standard floor component (1) includes a first installation wall (11), a second installation wall (12) disposed opposite to the first installation wall (11), and two third connecting plates (13) disposed opposite to each other. The first installation wall (11) is provided with a door opening hole. A connecting structure (2) and an installation structure (3) are provided between the two standard floor components (1). The installation structure (3) includes a first installation groove provided at the top of the third connecting plate (13), a first installation protrusion provided at the bottom of the third connecting plate (13), a second installation protrusion provided at the top of the second installation wall (12), and a second installation groove provided at the bottom of the second installation wall (12). The connecting structure (2) includes connecting holes provided on both sides of the third connecting plate (13), and a steel bar unit (21) inserted into the connecting holes.

2. The modular elevator shaft according to claim 1, wherein The first installation protrusion and the second installation protrusion are provided with installation inclined surfaces.

3. A modular elevator shaft according to claim 1, characterized in that, A splicing structure (4) is provided between the first installation wall (11) and the third connecting plate (13). The splicing structure (4) includes insertion slots (41) provided on both sides of the first installation wall (11), and insertion ends (42) provided on both side surfaces of the third connecting plate (13).

4. A modular elevator shaft according to claim 3, characterized in that, The insertion end (42) is provided with a protruding edge unit, and the protruding edge unit includes an upper protruding edge and a lower protruding edge, and the connecting holes are respectively provided on the upper protruding edge and the lower protruding edge. The insertion slot (41) is provided with an in-sunk groove adapted to the protruding edge unit, and the groove wall of the insertion slot (41) is provided with connection through holes adapted to the connecting holes.

5. A modular elevator shaft according to claim 4, characterized in that, The upper protruding edge and the lower protruding edge are respectively provided with embedded threaded sleeves, and the embedded threaded sleeves are adapted to the steel bar unit.

6. An elevator shaft building, characterized in that, It includes the modular elevator hoistway (5) described in any one of claims 1 to 5, and a cantilever member (6) provided between two standard floor components (1). The cantilever member (6) is provided with installation holes adapted to the connecting holes.

7. An elevator shaft building according to claim 1, wherein, The cantilever member (6) includes a concrete body (61), and a steel bar structure (62) provided in the concrete body (61). The steel bar structure (62) includes bundled steel bars (621) provided in the concrete body (61), and transverse steel bars (622), and the transverse steel bars (622) are provided with extending steel bars extending from the front end of the concrete body (61).

8. A lift shaft building according to claim 7, characterized in that, The steel bar unit (21) includes steel sleeves (22) provided in the installation holes, and vertical connecting steel bars (23) sequentially passing through the steel sleeves (22).

9. An elevator shaft building according to claim 8, characterized in that, After the extending ends of the vertical connecting steel bars (23) are inserted into the connecting holes, concrete slurry is poured into the connecting holes.

10. A lift shaft building according to claim 9, characterized in that, The construction process includes the following installation steps: Assembling the standard floor components; Lifting the standard floor components, the cantilever member, and the standard floor components in sequence; Pouring concrete slurry into the connecting holes.

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