Construction method for temporary elevator machine room between elevator shaft floors of super high-rise building

Abstract

The invention relates to the technical field of building construction, in particular to a construction method of an interlayer temporary elevator machine room of an elevator shaft of a super high-rise building, which comprises the following steps: S1, selecting two standard floors from the interlayer elevator shaft of the super high-rise building to construct a temporary elevator machine room floor bottom plate and a temporary elevator machine room floor bottom plate; s2, first I-shaped steel is arranged on each laminate structure to serve as a main beam; second I-shaped steel is welded above the first I-shaped steel; s3, a lifting hook is arranged below a top plate of the temporary elevator machine room layer; s4, fine aggregate concrete is poured above the steel plate of the top plate of the temporary elevator machine room layer; s5, solid bricks are adopted to build a waterproof ridge along the periphery of the top plate of the temporary elevator machine room layer; and S6, a layer of waterproof coating is constructed on the fine aggregate concrete of the top plate of the elevator machine room layer. And S7, a wood formwork is laid on the second I-shaped steel at the top plate position of the buffer layer. The method has the advantages that the construction period is shortened, engineering benefits are improved, house purchasing customers are isolated from a construction site, and customer safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a construction method for a temporary elevator machine room between floors of an elevator shaft in a super high-rise building. Background Technique

[0002] With the continuous development of construction projects, especially in housing construction projects such as residential buildings, a large number of advanced technologies are constantly updated. In the construction of super high-rise buildings, usually, the elevator project is installed after the completion of the main structure project of the building and after the construction of the roof machine room and the elevator shaft. The elevator installation project is in the later stage of the entire project. The utilization rate of the indoor formal elevator for the entire project construction is not high, restricting the further shortening of the project construction period.

[0003] At the same time, super high-rise residential projects usually need to cooperate with the pre-sale of commercial housing in the construction project. In order to make the commercial housing of the project favored by customers, the show flats are usually set on the middle and high floors with open views and beautiful scenery. The home buyers visiting the show flats often enter the show flats through the external construction elevator of the project to cooperate with the sales of the commercial housing of the project. As a result, during the construction of the project, the potential safety hazards increase, which is not conducive to the safety management of the project and the progress of the project construction.

[0004] Therefore, installing the indoor elevator project in the later stage of the project construction is not only not conducive to the progress of the project construction period, but also not conducive to maximizing the vertical transportation capacity during the construction. There are obvious deficiencies in the indoor elevator installation technology, which does not adapt to the rapid development of housing construction at the present stage, and its installation technology urgently needs to be further updated. Summary of the Invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a construction method for a temporary elevator machine room between floors of an elevator shaft in a super high-rise building The construction method for a temporary elevator machine room between floors of an elevator shaft in a super high-rise building provided by the present invention adopts the following technical solutions: S1. According to the net clearance requirements of the temporary elevator machine room equipment, select two standard floors in the super high-rise interlayer elevator shaft to construct the floor slab of the temporary elevator machine room and the floor slab of the temporary elevator machine room. A protective layer is arranged on the upper layer of the temporary elevator machine room floor, and a buffer layer is arranged on the upper layer of the protective layer; Reserved holes are respectively arranged on the two transverse shaft walls of the elevator shaft corresponding to the elevation of each layer slab of the temporary elevator machine room floor, the protective layer, and the buffer layer, and the reserved holes penetrate through the transverse shaft walls; S2. Two first I-beams are arranged as main beams for each layer slab structure. The first I-beams are parallel to the longitudinal shaft wall. One end of the first I-beam is inserted into the reserved hole on one of the transverse shaft walls, and the other end of the first I-beam is inserted into the reserved hole on the other transverse shaft wall; A plurality of second I-beams arranged vertically along the I-beam are welded and fixed above the first I-beam; S3. Fully cover the second I-beams on the floor slab of the temporary elevator machine room layer, the top slab of the temporary elevator machine room layer, and the top slab of the protective layer with steel plates. Cut the working openings for the elevator equipment on the steel plates of the floor slab of the temporary elevator machine room layer according to the requirements of the elevator equipment. Set lifting hooks below the top slab of the temporary elevator machine room layer; S4. In the range of 50 mm elevation above the steel plates on the top slab of the temporary elevator machine room layer, roughen and clean the concrete structures of the surrounding well walls of the elevator shaft. Pour fine stone concrete on the steel plates, and slope the fine stone concrete towards the elevator door direction to prevent water accumulation; S5. Build a waterproof sill around the top slab of the temporary elevator machine room layer with solid bricks, and plaster the waterproof sill with waterproof mortar; S6. Apply a layer of waterproof coating on the fine stone concrete of the top slab of the temporary elevator machine room layer, and the waterproof coating turns up 500 mm on the four-sided waterproof sills.

[0006] S7. Lay wooden formwork on the second I-beams at the position of the buffer layer top slab, and the wooden formwork should be fully covered and laid firmly. After the internal construction of each layer is completed, install temporary protective doors at the elevator shaft openings for closed management. After passing the acceptance, start the elevator installation construction of the temporary elevator machine room and the following floors.

[0007] Optionally, wedge the gap between the first I-beam and the reserved hole tightly with wooden wedges.

[0008] Optionally, the horizontal distance between the two reserved holes in each layer of the structural space is 1400 mm, and the distance from each reserved hole to the inner side of the longitudinal well wall of the adjacent elevator shaft is 200 mm.

[0009] Optionally, install a drain pipe below the waterproof sill on one side of the elevator door, and connect the drain pipe to the indoor temporary drainage system of each floor to drain the temporary accumulated water on the top slab of the temporary elevator machine room layer.

[0010] Compared with the prior art, the present invention has the following technical effects: By adopting the above construction method of the temporary elevator machine room, not only the rapid activation of the indoor elevator is realized, but more importantly, the construction period is shortened, the engineering efficiency is improved, and the commercial housing purchase customers of this project are isolated from the construction site, ensuring the safety of the customers and enhancing the purchase experience of the purchase customers. Description of the Drawings

[0011] Figure 1 is the front view of the construction of the temporary machine room between floors of the elevator shaft of the present invention.

[0012] Figure 2 is the schematic diagram of the waterproof sill and the drain pipe in the present invention.

[0013] Figure 3 is the side view of the construction of the temporary machine room between floors of the elevator shaft of the present invention.

[0014] Figure 4 It is a schematic diagram of the first I-beam, the second I-beam and the steel plate that embody the protective layer roof plate in the present invention.

[0015] Explanation of reference numerals: 1, temporary elevator machine room floor; 11, bottom plate of temporary elevator machine room floor; 12, roof plate of temporary elevator machine room floor; 2, protective layer; 21, protective layer roof plate; 3, buffer layer; 31, buffer layer roof plate; 4, longitudinal shaft wall; 5, transverse shaft wall; 51, reserved hole; 52, first I-beam; 53, second I-beam; 54, steel plate; 55, lifting hook; 6, fine aggregate concrete; 7, waterproof sill; 8, drain pipe; 9, wooden formwork. Specific implementation manners

[0016] The following further elaborates on the present invention Figure 1 - with reference to Figure 4 the accompanying drawings.

[0017] Referring to Figures 1 - 4 , an embodiment of the present invention discloses a construction method for a temporary elevator machine room between floors of an elevator shaft in a super high-rise building, including the following steps: S1. A total of three structural spaces, namely the temporary elevator machine room floor 1, the protective layer 2, and the buffer layer 3, are provided in the temporary elevator machine room. The three structures of the temporary elevator machine room floor 1, the protective layer 2, and the buffer layer 3 include four floor plate structures, which are the bottom plate 11 of the temporary elevator machine room floor, the roof plate 12 of the temporary elevator machine room floor, the protective layer roof plate 21, and the buffer layer roof plate 31 respectively.

[0018] According to the net clearance requirements of the temporary elevator machine room equipment, the bottom plate and the roof plate of the temporary elevator machine room floor 1 are constructed on two standard floors selected from the elevator shaft between floors of the super high-rise building. The upper layer of the temporary elevator machine room floor 1 is set as the protective layer 2, and the upper layer of the protective layer 2 is the buffer layer 3.

[0019] On the two transverse shaft walls 5 of the elevator shaft corresponding to the elevations of the floor plates of the temporary elevator machine room floor 1, the protective layer 2, and the buffer layer 3, reserved holes 51 with a size of 250mm * 250mm are respectively set. The reserved holes 51 penetrate through the transverse shaft walls 5. The horizontal distance between the two reserved holes 51 in each structural space is 1400mm, and the distance from each reserved hole 51 to the inner side of the longitudinal shaft wall 4 of the adjacent elevator shaft is 200mm.

[0020] S2. According to the positions of the reserved holes 51 on each floor, two first I-beams 52 are set as main beams for each floor slab structure. The first I-beam 52 is an 18# I-beam. The first I-beam 52 is parallel to the longitudinal shaft wall 4 of the elevator shaft, and both ends of the first I-beam 52 are inserted into the corresponding reserved holes 51 in the two transverse shaft walls 5. The first I-beam 52 serves as the load-bearing main beam for the temporary elevator machine room floor slab 11, the temporary elevator machine room ceiling 12, the protective layer ceiling 21, and the buffer layer ceiling 31. The gap between the first I-beam 52 and the reserved hole 51 is wedged tightly with wooden wedges to prevent the first I-beam 52 from shifting. A plurality of second I-beams 53 are arranged vertically on the first I-beam 52. The second I-beam 53 is a 14# I-beam, and the spacing between two adjacent second I-beams 53 is 600 mm. The placement position of the second I-beam 53 should avoid the elevator equipment working port position. The second I-beam 53 is located above the first I-beam 52, and the first I-beam 52 and the second I-beam 53 are fully welded on both sides, and the weld height is 6 mm.

[0021] S3. On the second I-beams 53 of the temporary elevator machine room floor slab 11, the temporary elevator machine room ceiling 12, and the protective layer ceiling 21, 3-mm-thick steel plates 54 are fully paved. The steel plate 54 is a diamond plate 54. The height of the steel plate 54 is the same as the elevation of each floor slab structure, and the steel plate 54 should be paved fully and steadily. On the steel plate 54 of the temporary elevator machine room floor slab 11, an elevator equipment working port is cut on the steel plate 54 according to the needs of the elevator equipment. The elevator equipment working port is for the steel wire rope to pass through. At the center position below the second I-beam 53 of the temporary elevator machine room ceiling 12, a "J"-shaped hook 55 is fully welded on both sides. The hook 55 is made of HPB300 plain round steel with a diameter of φ20.

[0022] S4. Within the range of 50 mm elevation on the steel plate 54 of the temporary elevator machine room ceiling 12, the concrete structure of the shaft walls around the elevator shaft is roughened and cleaned. After the construction joint of the shaft wall is brushed with cement mortar with the same mix ratio as the concrete for pouring the ceiling, 80-mm-thick C30 fine aggregate concrete 6 is poured on the steel plate 54. The fine aggregate concrete 6 slopes towards the elevator door direction to prevent water accumulation, and the fine aggregate concrete 6 should be vibrated densely and cured in place.

[0023] S5. Along the perimeter of the temporary elevator machine room ceiling 12, a 600-mm-high waterproof sill 7 is built with solid bricks, and the waterproof sill 7 is plastered with 20-mm-thick waterproof mortar; a 80-mm drain pipe 8 is arranged below the waterproof sill 7 on one side of the elevator door. The drain pipe 8 is connected to the temporary indoor drainage system of each floor to drain the temporary accumulated water on the temporary elevator machine room ceiling 12.

[0024] S6. On the fine aggregate concrete 6 of the temporary elevator machine room ceiling 12, a layer of 2-mm-thick JS polyurethane waterproof coating is constructed, and the waterproof coating turns up 500 mm on the four-sided waterproof sill 7.

[0025] S7. On the second I-beam 53 at the position of the buffer layer roof slab 31, lay a 15-mm wooden formwork 9 in double layers, and the double-layer wooden formwork 9 should be laid fully and stably. After the internal construction of each layer structure is completed, install a temporary protective door at the elevator shaft opening for closed management. After passing the acceptance, start the installation construction of the temporary elevator machine room and the elevators on the following floors.

[0026] Compared with the prior art, the prominent features of this method are as follows: By adopting the above construction method of the temporary elevator machine room, not only the rapid activation of the indoor elevator is realized, but more importantly, the construction period is shortened, the project benefit is improved, and the commercial housing buyers of this project are isolated from the construction site, ensuring the safety of the customers and enhancing the home-buying experience of the home-buying customers.

[0027] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A construction method for a temporary elevator machine room between floors of an elevator shaft in a super high-rise building, characterized in that: The steps include: S1. According to the clearance requirements of the temporary elevator machine room equipment, two standard floors are selected in the super-high-rise inter-floor elevator shaft to construct a temporary elevator machine room floor slab (11) and a temporary elevator machine room floor slab (11), a protective layer (2) is provided on the upper layer of the temporary elevator machine room layer (1), and a buffer layer (3) is provided on the upper layer of the protective layer (2); reserved holes (51) are respectively provided on the two horizontal shaft walls (5) of the elevator shaft corresponding to the floor slab elevations of the temporary elevator machine room layer (1), the protective layer (2), and the buffer layer (3), and the reserved holes (51) penetrate the horizontal shaft walls (5); S2. Each layer plate structure is provided with two first I-beams (52) as main beams, the first I-beams (52) are parallel to the longitudinal shaft wall (4), one end of the first I-beam (52) is inserted into a reserved hole (51) on one of the transverse shaft walls (5), and the other end of the first I-beam (52) is inserted into a reserved hole (51) on another transverse shaft wall (5); a plurality of second I-beams (53) arranged along the vertical direction of the I-beams are welded and fixed above the first I-beams (52); S3, fully laying steel plates (54) on the second I-beams (53) of the temporary elevator machine room floor bottom plate (11), the temporary elevator machine room floor top plate (12), and the protective layer top plate (21), cutting elevator equipment working openings on the steel plates (54) of the temporary elevator machine room floor bottom plate (11) according to the requirements of the elevator equipment, and setting a hook (55) below the temporary elevator machine room floor top plate (12); S4. Within the 50 mm elevation range above the steel plate (54) of the temporary elevator room floor top plate (12), the concrete structure of the shaft wall around the elevator shaft is roughened and cleaned, and fine stone concrete (6) is poured on the steel plate (54). The fine stone concrete (6) is sloped toward the elevator door to prevent water accumulation; S5, a waterproof sill (7) is built around the temporary elevator room floor top plate (12) with solid bricks, and the waterproof sill (7) is plastered with waterproof mortar; S6. Apply a layer of waterproof coating on the fine stone concrete (6) of the elevator room floor top plate (12), and apply the waterproof coating on the four sides of the waterproof sill (7) by 500 mm; S7. Lay a wooden formwork (9) on the second I-beam (53) at the position of the buffer layer top plate (31). The wooden formwork (9) should be laid fully and firmly. After the internal construction of each floor is completed, a temporary protective door is installed at the elevator shaft for closed management. After acceptance, the temporary elevator machine room and the elevator installation construction of the following floors will begin.

2. The construction method of a temporary elevator machine room between floors of an elevator shaft in a super high-rise building according to claim 1, characterized in that: The gap between the first I-beam (52) and the reserved hole (51) is tightened with a wooden wedge.

3. The construction method of a temporary elevator machine room between floors of an elevator shaft in a super high-rise building according to claim 1, characterized in that: The horizontal spacing between the two reserved holes (51) in each floor structure space is 1400 mm, and the distance between each reserved hole (51) and the inner side of the longitudinal shaft wall (4) of the adjacent elevator shaft is 200 mm.

4. The construction method of a temporary elevator machine room between floors of an elevator shaft in a super high-rise building according to claim 1, characterized in that: A drainage pipe (8) is arranged below the waterproof sill (7) on one side of the elevator door, and the drainage pipe (8) is connected to the temporary indoor drainage system of each floor to drain the temporary accumulated water on the top plate (12) of the temporary elevator machine room layer.

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