An assembled precast concrete elevator shaft corridor and a construction method thereof

Abstract

The application discloses an assembled prefabricated concrete elevator shaft corridor and a construction method thereof. The elevator shaft corridor comprises a prefabricated bottom section, a prefabricated top section and a plurality of prefabricated intermediate sections between the two. The prefabricated bottom section is used to fix the bottom of the elevator shaft corridor and the foundation. The prefabricated bottom section, the prefabricated intermediate sections and the prefabricated top section are connected through concave-convex openings. The four corners of the prefabricated bottom section, the prefabricated intermediate sections and the prefabricated top section are provided with reserved holes, and prestressed steel strands are arranged in the reserved holes. The elevator shaft corridor is divided into a plurality of prefabricated standard sections. After prefabrication, the standard sections are directly assembled on site, thereby shortening the construction period of the elevator and achieving rapid assembly on site. Through the pouring and forming of the concrete frame structure and the thermal insulation wall material and the overall prefabricated structure, the load bearing, thermal insulation, sound insulation and high-strength effects of the shaft corridor are achieved, and the adverse effects on the residents during construction are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator shaft gallery construction, and in particular to an assembled precast concrete elevator shaft gallery and a construction method thereof. Background Art

[0002] In older residential communities, it's necessary to install elevators outside the buildings to facilitate access for residents on higher floors. Currently, these installations typically require cast-in-place foundations and bottom sections, with upper steel shaft corridors as the framework. This requires extensive on-site wet work and assembly, resulting in a long construction period and environmentally unfriendly conditions, impacting residents' daily access. Furthermore, installing an elevator can affect daylighting for residents on the ground floor and generate construction noise, which can easily lead to resistance from residents and hinder the implementation of elevator retrofits. Summary of the Invention

[0003] Technical purpose: In view of the shortcomings of existing elevator installation, such as the use of on-site wet operations, complex steel frame assembly, long operation cycle, and inability to quickly complete the installation, the present invention discloses an assembled prefabricated concrete elevator shaft corridor and its construction method, which can quickly complete the installation of elevators, reduce the noise of elevator operation with a concrete structure, and compensate for the defect of blocked lighting for residents on the ground floor.

[0004] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] An assembled prefabricated concrete elevator shaft gallery comprises a prefabricated bottom section, a prefabricated top section and several prefabricated intermediate sections located therebetween. The bottom of the elevator shaft gallery is fixed to the foundation by the prefabricated bottom section. The prefabricated bottom section and the prefabricated intermediate sections, the adjacent prefabricated intermediate sections and the prefabricated intermediate section and the prefabricated top section are all connected by concave and convex openings. Pre-embedded steel sleeves are arranged between the contact surfaces, and force transmission spiral rods are passed through the pre-embedded steel sleeves. The force transmission spiral rods are bonded and fixed to the pre-embedded steel sleeves. Pre-reserved holes are correspondingly provided at the four corners of the prefabricated bottom section, the prefabricated intermediate section and the prefabricated top section. Pre-stressed steel strands are passed through the pre-reserved holes. The two ends of the prestressed steel strands are locked by anchors. The prefabricated bottom section, the prefabricated intermediate section and the prefabricated top section are connected into a rigid structure to form an elevator shaft gallery.

[0006] Preferably, the height of the prefabricated intermediate section of the present invention is consistent with the floor height of the community, and a prefabricated corridor plate for connecting and fixing the elevator shaft corridor is set at the junction of the prefabricated intermediate section. The two ends of the prefabricated corridor plate are respectively connected to the prefabricated intermediate section and the community building wall through elastic flexible joints.

[0007] Preferably, the elastic flexible joint of the present invention includes a flexible connecting block and connecting bolts passing through the flexible connecting block in directions perpendicular to each other; the elastic flexible joint close to the side where the prefabricated middle section is located, one group of connecting bolts is connected to the pre-embedded connecting nuts on the prefabricated middle section, and the other group of connecting bolts is connected to the prefabricated corridor plate.

[0008] Preferably, a solar low-light power generation panel is installed on the side of the elevator shaft gallery of the present invention, and the solar low-light power generation panel is connected to the power system of the elevator for power supply. A sealed canopy is provided above the prefabricated top section of the elevator shaft gallery, and a reflector panel for reflecting roof light to the bottom of the shaft gallery is provided on the extending brackets on both sides of the frame of the sealed canopy. The reflector panel is connected to an automatic angle adjustment mechanism fixed on the extending bracket of the sealed canopy.

[0009] Preferably, the automatic angle adjustment mechanism of the present invention includes an adjustable telescopic rod and a connecting support rod connecting the driving end of the adjustable telescopic rod and the back of the reflector panel. The connecting support rod, the adjustable telescopic rod and the reflector panel are hinged to each other. The connection between the connecting support rod and the reflector panel is located in the middle of the reflector panel. The bottom of the reflector panel is rotatably connected to the extending brackets on both sides of the sealing canopy frame. The connecting support rod is pulled by the adjustable telescopic rod, thereby driving the reflector panel to rotate, and the reflection direction and angle are adjusted so that light can be projected onto both sides of the bottom of the well gallery through the reflector panel.

[0010] Preferably, the prefabricated intermediate section of the present invention includes frame columns, frame beams and side facade reinforcement structures. The three-dimensional frame structure of the prefabricated intermediate section is formed by the frame columns and frame beams. The reserved holes are located on the frame columns, and the side facade reinforcement structures are arranged on the side facades and are connected and fixed to the corresponding frame columns and frame beams. Lightweight wall materials are used to fill the blank gaps between the side facade reinforcement structures and the frame columns and frame beams. Waterstops are set at the junction of the lightweight wall materials and the frame structure and at the junction of the concrete frame and the side facade reinforcement structure, and become a whole with the concrete. The waterstops prevent rainwater and the like from entering through the gaps between the wall materials and the structure to cause leakage.

[0011] The present invention also provides a construction method based on the above-mentioned assembled precast concrete elevator shaft gallery, comprising the steps of:

[0012] S01. Cast and prefabricate three prefabricated standard sections: the prefabricated bottom section, the prefabricated top section, and the prefabricated middle section. Install weak solar panels on the side facades of the prefabricated middle section and the prefabricated top section, and install the slide rails, connectors, and other components required for elevator operation on the inner walls.

[0013] S02. Fix the prefabricated bottom section to the concrete foundation with anchor screws, hoist and stack the prefabricated middle section and prefabricated top section on the prefabricated bottom section in sequence, and connect and fix the prefabricated middle section to the corresponding floor wall of the community with prefabricated corridor panels;

[0014] S03. Insert the prestressed steel strand from the prefabricated top section, and then pass it through the reserved holes of the prefabricated middle section and the prefabricated bottom section in sequence. Use anchors below the reserved holes of the prefabricated bottom section to tension the prestressed steel strand, so that the elevator shaft corridor forms a rigid whole.

[0015] S04. Install a sealed canopy and a reflector panel on the prefabricated top section. The reflector panel corresponds to the side facade where the solar low-light power generation panel is located. The reflector panel projects light to the bottom of the well gallery, thereby increasing the power generation of the solar low-light power generation panel on the side facade and improving the lighting for residents on the lower floors.

[0016] Preferably, in step S01 of the present invention, the casting and prefabrication process of the prefabricated standard section includes: using a steel mold corresponding to the structure of each part of the elevator shaft corridor frame, placing embedded parts corresponding to the parts to be prefabricated in the steel mold, pouring concrete, and after curing, removing the steel mold to obtain a concrete frame; placing the above-mentioned prefabricated section horizontally, padding the bottom with a corresponding template, applying release oil on the template, and applying a layer of 3-5mm thick flexible sealant on the concrete frame of the prefabricated middle section and the prefabricated top section and the junction of the side facade reinforcement structure and the wall material, using thermal insulation mortar wall materials in the blank gaps of the above-mentioned frame beams and reinforcement structures, filling, pouring and smoothing to form lightweight wall materials, demoulding after curing, and repeating this procedure for filling and pouring on the other three side facades in turn, thereby completing the prefabrication of the prefabricated standard section.

[0017] Preferably, in step S02 of the present invention, the hoisting and stacking process of each prefabricated standard section includes: installing a force transmission screw rod into the embedded steel bar sleeve at the end of each prefabricated standard section, and the force transmission screw rod and the corresponding embedded steel bar sleeve are bonded and fixed by structural adhesive; the prefabricated standard sections of two adjacent layers are aligned through the openings, and the force transmission screw rod is inserted into the corresponding embedded steel bar sleeve. After the stacking is completed, high-pressure glue is injected into the embedded steel bar sleeve.

[0018] Preferably, in step S03 of the present invention, after the prestressed steel strands are anchored, high-pressure grouting is performed into the reserved holes.

[0019] Beneficial effects: The prefabricated concrete elevator shaft gallery and the construction method thereof provided by the present invention have the following beneficial effects:

[0020] 1. The present invention divides the elevator shaft corridor into several prefabricated standard sections. After prefabrication, the sections can be directly assembled on site, thus shortening the construction period of the elevator installation, achieving the purpose of quickly completing the assembly of the elevator shaft corridor on site, and reducing the impact on residents.

[0021] 2. The prefabricated intermediate sections of the present invention are consistent with the floor height of the residential area where the elevator is installed. Each prefabricated intermediate section can be connected to the building wall through a prefabricated corridor plate to achieve the positioning and fixation of the entire elevator shaft corridor, and elastic flexible joints are used at the connection points to eliminate the disadvantages of different settlements and avoid affecting the shaft corridor structure.

[0022] 3. The present invention installs solar weak light power generation panels on the outer facade of the elevator shaft corridor, which can provide electricity for elevator operation, save energy and reduce operating costs.

[0023] 4. The present invention arranges reflector panels on the extending brackets on both sides of the sealed canopy frame at the top of the prefabricated top section. The angle of the reflector panels is changed by an automatic angle adjustment mechanism to reflect external light to the bottom of the well gallery. On the one hand, the brightness of the bottom of the well gallery is increased to ensure lighting for low-level users. At the same time, the power generation capacity of the installed solar low-light power generation panels can be increased.

[0024] 5. The present invention arranges embedded steel sleeves and force-transmitting spiral rods between the contact surfaces of adjacent prefabricated standard sections to enhance the structural strength of the contact surfaces, ensure the overall structural stability of the elevator shaft corridor, and cooperate with prestressed steel strands to form a unified whole and tightly combined between the prefabricated standard parts.

[0025] 6. The prefabricated middle section of the present invention uses a cast concrete frame, and casts thermal insulation mortar material between the side facade reinforcement structure and the frame to form a lightweight wall panel, thereby ensuring strength while achieving sound insulation and heat preservation, reducing deadweight, and facilitating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0027] Figure 1 This is the overall structural diagram of the elevator shaft gallery of the present invention;

[0028] Figure 2 This is the main view of the elevator shaft gallery of the present invention;

[0029] Figure 3 For the present invention Figure 1 A partial enlarged view of area A in the middle;

[0030] Figure 4 This is a structural diagram of the prefabricated intermediate section elevation of the present invention;

[0031] Figure 5 For the present invention Figure 4 Middle BB cross-section;

[0032] Figure 6 This is a structural diagram of the water stop edge of the present invention;

[0033] Among them, 1-prefabricated bottom section, 2-prefabricated top section, 3-prefabricated middle section, 4-foundation, 5-opening, 6-embedded steel sleeve, 7-force transmission spiral rod, 8-reserved hole, 9-prestressed steel strand, 10-anchor, 11-prefabricated corridor slab, 12-elastic flexible joint, 13-community building wall, 14-flexible connecting block, 15-connecting bolt, 16-connecting nut, 17-sealed canopy, 18-reflector panel, 19-angle adjustment mechanism, 20-adjustable telescopic rod, 21-connecting support rod, 22-frame column, 23-frame beam, 24-side facade reinforcement structure, 25-lightweight wall material, 26-waterstop, 27-spring. Implementation Method

[0034] The present invention will be described more clearly and completely below by way of a preferred embodiment in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiment.

[0035] like Figures 1-6 The figure shows an assembled prefabricated concrete elevator shaft gallery provided by the present invention, comprising a prefabricated bottom section 1, a prefabricated top section 2 and several prefabricated intermediate sections 3 located therebetween. The prefabricated bottom section 1 is used to fix the bottom of the elevator shaft gallery to the foundation 4. The prefabricated bottom section 1 and the prefabricated intermediate sections 3, the adjacent prefabricated intermediate sections 3, and the prefabricated intermediate sections 3 and the prefabricated top section 2 are all connected by concave and convex openings 5, and embedded steel sleeves 6 are provided between the contact surfaces. A force transmission screw rod 7 is passed through the embedded steel sleeve 6, and the force transmission screw rod 7 is bonded and fixed to the embedded steel sleeve 6; the four corners of the prefabricated bottom section 1, the prefabricated intermediate section 3 and the prefabricated top section 2 are each provided with a reserved hole 8, and a prestressed steel strand 9 is passed through the reserved hole 8. The two ends of the prestressed steel strand 9 are locked by anchors 10, and the prefabricated bottom section 1, the prefabricated intermediate section 3 and the prefabricated top section 2 are connected into a rigid structure to form an elevator shaft gallery.

[0036] In order to ensure the reliable fixation of the upper area of ​​the elevator shaft corridor and ensure the smooth operation of the elevator, the present invention sets the height of the prefabricated intermediate section 3 to be consistent with the floor height of the community, and sets a prefabricated corridor plate 11 for connecting and fixing the elevator shaft corridor at the junction of the prefabricated intermediate section 3. The two ends of the prefabricated corridor plate 11 are respectively connected to the prefabricated intermediate section 3 and the community building wall 13 through elastic flexible joints 12. The elastic flexible joint 12 can accommodate errors caused by settlement and ensure the reliability of the connection. In a specific embodiment, the elastic flexible joint 12 of the present invention includes a flexible connecting block 14 and connecting bolts 15 passed through the flexible connecting block 14 in directions perpendicular to each other; the flexible connecting block 14 is installed in the reserved hole at the end of the corridor floor, close to the elastic flexible joint on the side where the prefabricated intermediate section 3 is located, one group of connecting bolts is connected to the pre-embedded connecting nut 16 on the prefabricated intermediate section 3, and the other group of connecting bolts is connected to the prefabricated corridor plate 11. Preferably, a spring 27 is passed through the connecting bolt, which is divided into horizontal springs and vertical springs according to the setting orientation of the spring, and is used to accommodate height changes in the horizontal and vertical directions respectively; the horizontal spring and the vertical spring are respectively placed in the horizontal hole and the vertical hole of the flexible connecting block 14, and the horizontal hole and the vertical hole are staggered in the flexible connecting block to avoid interference with each other. After completing the connection with the prefabricated corridor floor, the horizontal spring and the vertical spring are both in a compressed state, and the concrete components are flexibly connected in the horizontal and vertical directions through the horizontal connecting bolts and the vertical connecting bolts. The flexible connection block 14 can be adjusted to different degrees according to the different settlements, thereby eliminating the disadvantages of different settlements and achieving an anti-seismic effect. The flexible connection block 14 is preferably made of high-strength rubber.

[0037] In order to reduce the loss of elevator operation and save energy, the outer facade of the elevator shaft gallery of the present invention is equipped with solar power generation panels. Figure 2The elevator shaft gallery doorway facades are adjacent, and the solar low-light power generation panels are connected to the elevator's power system for power supply. A sealed canopy 17 is provided above the prefabricated top section 2 of the elevator shaft gallery. On the side of the original residence, on the extended brackets on both sides of the frame of the sealed canopy 17, there are reflector panels 18 for reflecting roof light to the shaft gallery. The reflector panels 18 are connected to the angle adjustment mechanisms 19 on the extended brackets on both sides of the frame fixed to the sealed canopy 17. The angle adjustment mechanism 19 can adjust the reflection direction of the reflector panels 18 according to different climate conditions and seasons, so that more light can reach the bottom of the elevator shaft gallery, increase the power generation of the solar panels, and also increase the lighting for residents on the lower floors. In a specific embodiment, the angle adjustment mechanism 19 of the present invention includes an adjusting telescopic rod 20 and a connecting rod 21 connecting the driving end of the adjusting telescopic rod 20 and the back of the reflector panel 18. The connecting rod 21 is hinged to the adjusting telescopic rod 20 and the reflector panel 18. The connection between the connecting rod 21 and the reflector panel 18 is located in the middle of the reflector panel 18. The bottom of the reflector panel 18 is rotatably connected to the sealing canopy 17. The connecting rod 21 is pulled by the adjusting telescopic rod 20, thereby driving the reflector panel 18 to rotate and adjust the reflection direction.

[0038] In order to facilitate the assembly between prefabricated standard sections, the load is reduced, such as Figure 4-Figure 6 As shown, the prefabricated intermediate section 3 of the present invention includes a frame column 22, a frame beam 23 and a side facade reinforcement structure 24. The three-dimensional frame structure of the prefabricated intermediate section 3 is formed by the frame column 22 and the frame beam 23. The reserved hole 8 is located on the frame column 22. The side facade reinforcement structure 24 is arranged on the side facade and is connected and fixed to the corresponding frame column 22 and frame beam 23; the gap between the side facade reinforcement structure 24 and the frame column 22 and frame beam 23 is filled with lightweight wall materials 25. It can not only ensure sufficient supporting strength and thermal insulation effect to meet the needs of elevator operation, but also reduce weight, reduce material consumption and lifting load; at the junction of lightweight wall materials and frame structures, including concrete frames and facade reinforcement structures, a waterstop structure is set at the lower edge of the exterior, which is an integral part of the concrete. The waterstop 26 covers the gap at the junction to prevent external water from entering the shaft corridor through the gap at the junction of the lightweight wall material 25 and the frame structure, thereby ensuring the dryness of the internal environment of the elevator shaft corridor. As a preference, the extension direction of the waterstop 26 is set to be consistent with the direction of water flow, so that rainwater flows smoothly to a lower place when passing through the waterstop at the junction and will not leak into the inside of the shaft corridor.

[0039] The elevator shaft corridor structure of the present invention can also be used in conjunction with an intelligent stereoscopic parking garage. The elevator shaft corridor and the intelligent stereoscopic parking garage are connected by elastic flexible connectors and connecting plates. The stereoscopic parking garage effectively solves the parking difficulties in old residential areas and the difficulty of entering and exiting high-rise residents in old residential areas due to the installation of elevators. Solar weak-light power generation panels are installed on the sides of the stereoscopic parking garage and the elevator shaft corridor, and the electricity generated is sufficient to meet the electricity needs of running elevators and the stereoscopic parking garage.

[0040] The present invention also provides a construction method based on the above-mentioned assembled precast concrete elevator shaft gallery, comprising the steps of:

[0041] S01. Cast and prefabricate three prefabricated standard sections: the prefabricated bottom section, the prefabricated top section, and the prefabricated middle section. Install weak solar panels on the exterior of the prefabricated middle section and the prefabricated top section, and install the slide rails, connectors, and other components required for elevator operation on the interior walls.

[0042] The casting and prefabrication process of the prefabricated standard section includes: using steel molds corresponding to the structures of the various parts of the elevator shaft corridor frame, placing embedded parts corresponding to the parts to be prefabricated in the steel molds, pouring concrete, and after curing, removing the steel molds to obtain a concrete frame; placing the above-mentioned prefabricated section horizontally, placing the corresponding template on the bottom, applying release oil on the template, and applying a layer of 3-5mm thick flexible sealant on the concrete frame of the prefabricated middle section and the prefabricated top section and the junction of the side reinforcement structure and the wall material, using thermal insulation mortar wall materials in the blank gaps of the above-mentioned frame beams and reinforcement structures, filling, pouring and smoothing, demoulding after curing, and repeating this procedure for filling and pouring on the other three side facades in turn, thereby completing the prefabrication of the prefabricated standard section. For the prefabricated bottom section 1, due to the need to provide sufficient bearing capacity, the whole is cast with reinforced concrete, and a solid structure is preferred. The prefabricated top section 2 and the prefabricated middle section 3 use the same frame structure. After the casting is completed, the impurities in the reserved holes and joint surfaces are removed to facilitate the subsequent lifting and docking. At the same time, the installation of the exterior facade solar low-light power generation panels and the installation of various functional components required for the elevator operation on the inner wall can be carried out first, so as to reduce the difficulty of subsequent construction and shorten the installation period.

[0043] S02. Fix the prefabricated bottom section to the concrete foundation with anchor screws, hoist and stack the prefabricated middle section and prefabricated top section on the prefabricated bottom section in sequence, and connect and fix the prefabricated middle section to the corresponding floor wall of the community with prefabricated corridor panels;

[0044] The hoisting and stacking process of each prefabricated standard section includes: inserting a force transmission screw into a pre-embedded steel sleeve of each prefabricated standard section, the outer circle of the screw has sparse spiral grooves, which can make the smooth part of the force transmission screw smoothly inserted into the pre-embedded steel sleeve, and also can fill structural glue in the spiral groove to make the screw and the sleeve tightly bonded; the two adjacent layers of prefabricated standard sections are aligned through the opening, the contact surface of the opening is coated with sealing glue, and the force transmission screw is arranged in the corresponding pre-embedded steel sleeve, after the stacking is completed, the pre-embedded steel sleeve is filled with high-pressure glue, and the force transmission rod and the steel sleeve are tightly combined.

[0045] S03, the prestressed steel strand is inserted from the prefabricated top section, sequentially passes through the reserved holes of the prefabricated intermediate section and the prefabricated bottom section, and the prestressed steel strand is tensioned by using an anchor below the reserved hole of the prefabricated bottom section, high-pressure grouting is filled into the reserved hole, and the elevator shaft corridor forms a rigid whole;

[0046] S04, finally, the sealing cover shed and the mirror panel are installed on the prefabricated top section, the angle of the mirror can be automatically adjusted according to the season, climate and sunshine, so that the sunlight reflected to the ground is sufficient and long in time.

[0047] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An assembled precast concrete elevator shaft gallery, characterized in that: The invention comprises a prefabricated bottom section (1), a prefabricated top section (2) and a plurality of prefabricated intermediate sections (3) located between the two. The bottom of the elevator shaft corridor and the foundation (4) are fixed by the prefabricated bottom section (1). The prefabricated bottom section (1) and the prefabricated intermediate sections (3), the adjacent prefabricated intermediate sections (3) and the prefabricated intermediate sections (3) and the prefabricated top section (2) are connected by concave and convex openings (5). Pre-buried steel sleeves (6) are arranged between the contact surfaces. (6) is provided with a force transmission screw rod (7), which is bonded and fixed to the embedded steel bar sleeve (6); four corners of the prefabricated bottom section (1), the prefabricated middle section (3), and the prefabricated top section (2) are provided with corresponding reserved holes (8), and prestressed steel strands (9) are provided in the reserved holes (8), and both ends of the prestressed steel strands (9) are locked by anchors (10), so that the prefabricated bottom section (1), the prefabricated middle section (3), and the prefabricated top section (2) are connected into a rigid structure to form an elevator shaft corridor; The height of the prefabricated intermediate section (3) is consistent with the floor height of the residential area. A prefabricated corridor plate (11) for connecting and fixing the elevator shaft corridor is provided at the junction of the prefabricated intermediate section (3). Both ends of the prefabricated corridor plate (11) are connected to the prefabricated intermediate section (3) and the residential area building wall (13) through elastic flexible joints (12). The elastic flexible joint (12) includes a flexible connecting block (14) and connecting bolts (15) passing through the flexible connecting block (14) in mutually perpendicular directions; the elastic flexible joint close to the side where the prefabricated middle section (3) is located has one group of connecting bolts connected to the pre-buried connecting nuts (16) on the prefabricated middle section (3), and another group of connecting bolts connected to the prefabricated corridor plate (11); A spring (27) is provided on the connecting bolt. The spring (27) is divided into a horizontal spring and a vertical spring according to the setting orientation. The horizontal spring and the vertical spring are placed in the horizontal hole and the vertical hole of the flexible connecting block (14) respectively. The horizontal hole and the vertical hole are staggered with each other in the flexible connecting block. After the connection with the prefabricated corridor bottom plate is completed, the horizontal spring and the vertical spring are both in a compressed state. The concrete member is flexibly connected in the horizontal direction and the vertical direction through the horizontal connecting bolt and the vertical connecting bolt.

2. The prefabricated concrete elevator shaft gallery according to claim 1, characterized in that: A solar low-light power generation panel is installed on the side of the elevator shaft gallery, and the solar low-light power generation panel is connected to the power system of the elevator for power supply. A sealed canopy (17) is provided above the prefabricated top section (2) of the elevator shaft gallery, and reflector panels (18) for reflecting roof light to the shaft gallery are provided on the extension brackets on both sides of the frame of the sealed canopy (17). The reflector panels (18) are connected to an automatic angle adjustment mechanism (19) fixed on the extension bracket of the sealed canopy (17).

3. The prefabricated concrete elevator shaft gallery according to claim 2, characterized in that: The automatic angle adjustment mechanism (19) comprises an adjusting telescopic rod (20) and a connecting rod (21) connecting a driving end of the adjusting telescopic rod (20) and the back of the reflector panel (18); the connecting rod (21), the adjusting telescopic rod (20), and the reflector panel (18) are hinged to each other; the connection point between the connecting rod (21) and the reflector panel (18) is located in the middle of the reflector panel (18); the bottom of the reflector panel (18) is rotatably connected to the sealing canopy (17); the adjusting telescopic rod (20) pulls the connecting rod (21), thereby driving the reflector panel (18) to rotate, thereby adjusting the reflection direction.

4. The prefabricated concrete elevator shaft gallery according to claim 1, characterized in that: The prefabricated intermediate section (3) comprises a frame column (22), a frame beam (23) and a side elevation reinforcement structure (24). The frame column (22) and the frame beam (23) form a three-dimensional frame structure of the prefabricated intermediate section (3). The reserved hole (8) is located on the frame column (22). The side elevation reinforcement structure (24) is arranged on the side elevation and is connected and fixed to the corresponding frame column (22) and frame beam (23). Lightweight wall materials (25) are used to fill the gaps between the side elevation reinforcement structure (24) and the frame column (22) and the frame beam (23). A water stop (26) is provided at the junction of the lightweight wall material (25) and the concrete frame and the side elevation reinforcement structure.

5. A construction method for an assembled precast concrete elevator shaft gallery according to any one of claims 1 to 4, characterized in that: Including steps: S01. Cast and prefabricate three prefabricated standard sections: the prefabricated bottom section, the prefabricated top section, and the prefabricated middle section. Install weak solar panels on the side facades of the prefabricated middle section and the prefabricated top section, and install the slide rails and connectors required for elevator operation on the inner walls. S02. Fix the prefabricated bottom section to the concrete foundation with anchor screws, hoist and stack the prefabricated middle section and prefabricated top section on the prefabricated bottom section in sequence, and connect and fix the prefabricated middle section to the corresponding floor wall of the community with prefabricated corridor panels; S03. Insert the prestressed steel strand from the prefabricated top section, and then pass it through the reserved holes of the prefabricated middle section and the prefabricated bottom section in sequence. Use anchors below the reserved holes of the prefabricated bottom section to tension the prestressed steel strand, so that the elevator shaft corridor forms a rigid whole. S04. Install the sealing canopy and reflector panel on the prefabricated top section.

6. The construction method of a prefabricated concrete elevator shaft gallery according to claim 5, characterized in that: In step S01, the casting and prefabrication process of the prefabricated standard section includes: using steel molds corresponding to the structures of various parts of the elevator shaft corridor frame, placing embedded parts corresponding to the parts to be prefabricated in the steel molds, pouring concrete, and after curing, removing the steel molds to obtain a concrete frame; the concrete frames of the prefabricated middle section and the prefabricated top section are filled with insulating mortar wall materials in the blank gaps of the side frame beams, frame columns and side facade reinforcement structures, and before filling, a layer of 3-5mm thick flexible sealant is brushed on the junction of the frame and the wall material to complete the prefabrication of the prefabricated standard section.

7. The construction method of a prefabricated concrete elevator shaft gallery according to claim 5, characterized in that: In step S02, the hoisting and stacking process of each prefabricated standard section includes: installing a force transmission screw rod into the embedded steel sleeve of each prefabricated standard section, and bonding and fixing the force transmission screw rod to the corresponding embedded steel sleeve by structural adhesive; the prefabricated standard sections of two adjacent layers are aligned by openings, and the force transmission screw rod is passed through the corresponding embedded steel sleeve. After the stacking is completed, high-pressure glue is injected into the embedded steel sleeve.

8. The construction method of a prefabricated concrete elevator shaft gallery according to claim 7, characterized in that: In step S03, after the prestressed steel strands are anchored, high-pressure grouting is performed into the reserved holes.

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