Installation method of steel structure elevator shaft

Abstract

The present invention relates to the technical field of outdoor elevator shaft construction, and specifically to a method for installing an elevator shaft with a steel structure, comprising the following steps: dividing the elevator shaft with a steel structure into N elevator shaft sections in advance, and preparing channel steel support rods and connecting pieces according to the sizes of the elevator shaft sections divided in advance; assembling each elevator shaft section on the ground, and connecting the channel steel support rods between two adjacent transverse legs on one side of an open opening of the elevator shaft section through a connecting piece; hoisting each elevator shaft section section by section from bottom to top, and welding and fixing the elevator shaft section after hoisting it to an installation position; disassembling the hoisting wire rope, and removing the channel steel support rods and the connecting piece; the present invention can directly hoist and install the elevator shaft with a steel structure in sections as a whole, thereby improving the construction speed of the elevator shaft with a steel structure, reducing the construction difficulty and risk factor of high-altitude operations, and saving construction costs.

Description

Technical Field

[0001] The invention relates to the technical field of outdoor elevator shaft construction, in particular to a method for installing a steel structure elevator shaft. Background Art

[0002] As the enthusiasm for new construction in the construction industry slows down, renovation and expansion projects have become a new trend in the development of the construction industry. In addition to renovation of the building itself, most building renovations also involve the installation of elevators, that is, adding elevators outside the original building structure; such as application number CN202120712059.9, an existing building with an elevator shaft steel structure, including rectangular steel columns, column base components, H-shaped steel frame beams, support connection plates, C-shaped steel column support beams, embedded steel plates, chemical anchors, H-shaped steel cantilever beams, high-strength bolts and lifting ring assemblies; the newly added elevator peripheral structures are mostly open steel structure elevator shafts, which have strict requirements on the verticality of the elevator shaft structure and accurate inter-layer spacing; however, due to objective conditions such as transportation, elevator shaft components are usually shipped to the installation site in the form of loose parts. The traditional installation method is: install layer by layer from bottom to top, and each layer needs to be installed. Vertical adjustment and inter-layer spacing review, long construction period, waste of manpower and time costs, large amount of high-altitude operations, and high risk factor. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a method for installing a steel structure elevator shaft that can effectively improve construction efficiency and ensure construction safety.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A method for installing a steel structure elevator shaft, wherein the steel structure elevator shaft comprises two vertical legs, a plurality of steel beams are connected between the two vertical legs, and a plurality of transverse legs are arranged at intervals on each vertical leg, wherein the transverse legs are arranged perpendicular to the plane where the vertical legs and the steel beams are located; the method comprises the following steps:

[0006] S1: According to the elevator shaft design drawings, the steel structure elevator shaft is divided into N sections in advance;

[0007] S2: Prepare channel steel support rods and connectors according to the pre-divided elevator shaft segment dimensions; the channel steel support rods include longitudinal support rods and transverse support rods, the length of the longitudinal support rods is adapted to the spacing between the upper and lower adjacent transverse legs, and the length of the transverse support rods is adapted to the spacing between the left and right adjacent transverse legs;

[0008] S3: Assemble each elevator shaft segment on the ground, and check the inter-layer spacing and verticality of the elevator shaft segment; connect the channel steel support rods between the adjacent horizontal legs on the open side of the elevator shaft segment through connectors;

[0009] S4: Hoist each elevator shaft section piece by piece from bottom to top. After the elevator shaft section is hoisted to the installation position, re-measure the installation elevation and verticality to ensure that they are correct. Then weld and fix the end of the horizontal leg and the bottom end of the vertical leg on the open side of the elevator shaft section;

[0010] S5: Dismantle the hoisting wire rope, remove the channel steel support rod and connectors, and install them in other elevator shaft sections to be constructed for circulation.

[0011] Preferably, the connecting member in step S2 is a connecting plate, both ends of the longitudinal support rod and the transverse support rod are provided with a first connecting hole, and one side of the connecting plate is provided with a second connecting hole corresponding to the first connecting hole;

[0012] The specific steps of connecting the channel steel support rod between two adjacent transverse legs on one side of the elevator shaft segment opening through a connecting piece in step S3 include:

[0013] S301: Welding the side of the connection plate away from the second connection hole to a position close to the end of the transverse leg on one side of the elevator shaft segment opening;

[0014] S302: Connect the longitudinal support rod between the upper and lower adjacent transverse support legs through a connecting plate and connecting bolts, and connect the transverse support rod between the left and right adjacent transverse support legs through a connecting plate and connecting bolts;

[0015] In step S5, the longitudinal support rods, the transverse support rods and the connecting plates are removed by cutting the connecting plates for recycling.

[0016] Preferably, in step S2, the connecting member includes a plurality of C-type clips, each two C-type clips form a group, clamping the horizontal support rod from the left and right sides respectively, a first connecting ear is provided on the horizontal plate of the C-type clip, and a second connecting ear is provided on the vertical plate of the C-type clip, the first connecting ear is vertically arranged and perpendicular to the horizontal plate, and the second connecting ear is vertically arranged and perpendicular to the vertical plate; a third connecting hole is provided on the first connecting ear, and a fourth connecting hole is provided on the second connecting ear;

[0017] A third connecting ear is arranged on both sides of the end of the longitudinal support rod, and a fifth connecting hole is arranged on the third connecting ear corresponding to the third connecting hole of the first connecting ear; a sixth connecting hole is arranged on the end of the transverse support rod corresponding to the fourth connecting hole of the second connecting ear.

[0018] The specific steps of connecting the channel steel support rod between two adjacent transverse legs on one side of the elevator shaft segment opening through a connecting piece in step S3 include:

[0019] S301: Install C-type clamps near the end of the transverse legs on the open side of the elevator shaft section, with two C-type clamps forming a group to hold the transverse legs;

[0020] S302: The ends of the longitudinal support rods are inserted into the left and right first connecting ears, the two third connecting ears are abutted against the inner sides of the two first connecting ears, and are matched with the connecting bolts through the third connecting holes and the fifth connecting holes to be connected and fixed between the upper and lower adjacent transverse supporting legs; the transverse support rods are matched with the connecting bolts through the fourth connecting holes and the sixth connecting holes to be connected and fixed between the left and right adjacent transverse supporting legs;

[0021] In step S5, the connecting bolts are taken out, and the longitudinal support rods, transverse support rods and C-type clamps are removed for rotational use.

[0022] Preferably, step S3 also includes welding a lifting lug at the proximal end of the horizontal leg at the top of the elevator shaft segment, and welding a connecting clamp at the top of the vertical leg at the top of the elevator shaft segment, and the lifting lug and the connecting clamp are detachably equipped with a U-shaped shackle for connecting the lifting wire rope.

[0023] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features:

[0024] The present invention combines the originally scattered elevator shaft components into a rigid frame for hoisting, and can directly hoist and install the steel structure elevator shaft in sections as a whole, thereby improving the overall stability, saving the labor consumption of multiple adjustments and re-measurements in the traditional scattered hoisting method, and increasing the construction speed of the open steel structure elevator shaft. At the same time, it also reduces the construction difficulty and risk factor of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the installation of a medium-sized steel structure elevator shaft in an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of the elevator shaft segmentation in an embodiment of the present invention;

[0027] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 5 Schematic diagram of another structure of the connecting member in the embodiment of the present invention.

[0030] Explanation of the accompanying drawings: 1. Elevator shaft segmentation; 101. Horizontal support leg; 102. Vertical support leg; 2. Channel steel support rod; 201. Longitudinal support rod; 202. Horizontal support rod; 2021. Sixth connecting hole; 3. Connecting plate; 4. Lifting ear; 5. Connecting splint; 6. Lifting wire rope; 7. U-shaped shackle; 8. C-type card; 801. First connecting ear; 8011. Third connecting hole; 802. Second connecting ear; 8021. Fourth connecting hole. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with specific embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0032] Open steel elevator shafts are often used to add elevators to the original building structure. Figure 2 As shown, it includes two vertical legs 102, a plurality of steel beams are connected between the two vertical legs 102, and a plurality of transverse legs 101 are arranged at intervals on each vertical leg 102, and the transverse legs 101 are arranged perpendicular to the plane where the vertical legs 102 and the steel beams are located; for the installation of an open steel structure elevator shaft, this embodiment discloses a steel structure elevator shaft installation method, including the following steps:

[0033] S1: Figure 2 As shown, according to the elevator shaft design drawings, the steel structure elevator shaft is divided into N sections of elevator shaft segments 1 in advance; to improve construction efficiency, the height of each section of the elevator shaft segment 1 is greater than or equal to the height of two floors of the elevator shaft structure; in this embodiment, N=6, the elevator shaft structure height is 17 floors in total, the height of the first section of the elevator shaft segment 1 and the last section of the elevator shaft segment 1 is 2.5 floors of the elevator shaft structure height, and the height of the middle 4 sections of the elevator shaft segments 1 is equal to the height of 3 floors of the elevator shaft structure, that is, the two-story elevator shaft structure height extends half a floor height upward and half a floor height downward.

[0034] S2: Prepare channel steel support rods 2 and connecting parts according to the size of the elevator shaft segment 1 divided in advance; the channel steel support rods 2 include longitudinal support rods 201 and transverse support rods 202, the length of the longitudinal support rods 201 is adapted to the distance between the two adjacent upper and lower transverse legs 101, and the length of the transverse support rods 202 is adapted to the distance between the two adjacent left and right transverse legs 101; wherein the connecting parts are connecting plates 3, and both ends of the longitudinal support rods 201 and the transverse support rods 202 are provided with first connecting holes, and one side of the connecting plate 3 is provided with a second connecting hole corresponding to the first connecting hole.

[0035] S3: Figure 1, assemble each elevator shaft segment 1 on the ground, and check the inter-layer spacing and verticality of the elevator shaft segment 1; connect the channel steel support rod 2 between two adjacent transverse legs 101 on the open side of the elevator shaft segment 1 through a connector; specifically;

[0036] S301: according to the number of channel steel support rods 2 to be connected, weld the side of the connecting plate 3 away from the second connecting hole to the position close to the end of the transverse leg 101 on the open side of the elevator shaft segment 1;

[0037] S302: Figure 3 The longitudinal support rod 201 is connected between the upper and lower adjacent two transverse legs 101 through the connecting plate 3 and the connecting bolts, and the transverse support rod 202 is connected between the left and right adjacent two transverse legs 101 through the connecting plate 3 and the connecting bolts.

[0038] S4: hoist each elevator shaft segment 1 section by section from bottom to top. After the elevator shaft segment 1 is hoisted to the installation position, re-measure the installation elevation and verticality to ensure that they are correct, and then weld and fix the end of the horizontal support leg 101 on the open side of the elevator shaft segment 1 and the bottom end of the vertical support leg 102.

[0039] S5: dismantle the hoisting wire rope 6, cut the connecting plate 3 and polish and repaint it, remove the longitudinal support rod 201, the transverse support rod 202 and the connecting plate 3, and install them to other elevator shaft sections 1 to be constructed for rotation.

[0040] Embodiment 2: This embodiment discloses another method for installing a steel structure elevator shaft, comprising the following steps:

[0041] S1: Figure 2 As shown, according to the elevator shaft design drawings, the steel structure elevator shaft is divided into N elevator shaft sections 1 in advance; in order to improve construction efficiency, the height of each elevator shaft section 1 is greater than or equal to two floors.

[0042] S2: Prepare the channel steel support rod 2 and the connecting parts according to the size of the elevator shaft segment 1 divided in advance; the channel steel support rod 2 includes a longitudinal support rod 201 and a transverse support rod 202, the length of the longitudinal support rod 201 is adapted to the distance between the two adjacent transverse legs 101 on the upper and lower sides, and the length of the transverse support rod 202 is adapted to the distance between the two adjacent transverse legs 101 on the left and right sides.

[0043] Specifically, Figure 5The connecting piece includes a plurality of C-type cards 8, each two C-type cards 8 form a group, which clamp the horizontal support rod 202 from the left and right sides respectively; the horizontal plates on the upper and lower sides of the C-type card 8 are provided with a first connecting ear 801, and the vertical plate of the C-type card 8 is provided with a second connecting ear 802; the first connecting ear 801 is vertically arranged and perpendicular to the horizontal plate, and the second connecting ear 802 is vertically arranged and perpendicular to the vertical plate; the first connecting ear 801 is provided with a third connecting hole 8011, and the second connecting ear 802 is provided with a fourth connecting hole 8021; third connecting ears are provided on both sides of the end of the longitudinal support rod 201, and the third connecting ear is provided with a fifth connecting hole corresponding to the third connecting hole 8011 of the first connecting ear 801; a sixth connecting hole 2021 is provided at the end of the horizontal support rod 202 corresponding to the fourth connecting hole 8021 of the second connecting ear 802.

[0044] S3: Figure 1 , assemble each elevator shaft segment 1 on the ground, check the inter-layer spacing and verticality of the elevator shaft segment 1; connect the channel steel support rod 2 between two adjacent transverse legs 101 on the open side of the elevator shaft segment 1 through a connector; the specific steps are as follows;

[0045] S301: Install C-shaped clips 8 near the end of the transverse leg 101 on the open side of the elevator shaft segment 1, with two C-shaped clips 8 forming a group to hold the transverse leg 101;

[0046] S302: The end of the longitudinal support rod 201 is inserted into the left and right first connecting ears 801, and the third connecting ears on both sides are abutted between the left and right first connecting ears 801, and cooperate with the connecting bolts through the third connecting hole 8011 and the fifth connecting hole, so that the longitudinal support rod 201 is connected and fixed between the upper and lower adjacent transverse legs 101; the transverse support rod 202 is connected and fixed between the left and right adjacent transverse legs 101 through the fourth connecting hole 8021 and the sixth connecting hole 2021.

[0047] S4: hoist each elevator shaft segment 1 section by section from bottom to top. After the elevator shaft segment 1 is hoisted to the installation position, re-measure the installation elevation and verticality to ensure that they are correct, and then weld and fix the end of the horizontal support leg 101 on the open side of the elevator shaft segment 1 and the bottom end of the vertical support leg 102.

[0048] S5: dismantle the hoisting wire rope 6, take out the connecting bolts, remove the longitudinal support rod 201, the transverse support rod 202 and the C-type clamp 8, and install them to the next section of the elevator shaft segment 1 to be constructed for rotation.

[0049] Further, such as Figure 1 , Figure 4As shown, step S3 also includes welding a lifting lug 4 at the proximal end of the horizontal leg 101 at the top of the elevator shaft segment 1, and welding a connecting splint 5 at the top of the vertical leg 102 at the top of the elevator shaft segment 1, and the lifting lug 4 and the connecting splint 5 are detachably installed with a U-shaped shackle 7; used to connect the lifting wire rope 6 used for lifting; correspondingly, step S5 also includes disassembling the U-shaped shackle 7, cutting the lifting lug 4 and the connecting splint 5, and grinding and repainting the lifting lug 4 and the connecting splint 5 after cutting.

[0050] When installing the steel structure elevator shaft, the present invention utilizes the channel steel support rods 2 and the connecting pieces to combine the scattered components of the steel structure elevator shaft into a rigid frame, thereby improving the overall stability and solving the problems of insufficient installation accuracy and verticality deviation caused by the scattered lifting method in the traditional construction method. The whole is directly lifted and installed, which saves the labor consumption of multiple re-measurements and adjustments, shortens the construction period, and also reduces the construction difficulty and risk factor of high-altitude operations.

[0051] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A method for installing a steel structure elevator shaft, wherein the steel structure elevator shaft comprises two vertical legs, a plurality of steel beams are connected between the two vertical legs, and a plurality of transverse legs are arranged at intervals on each vertical leg, wherein the transverse legs are arranged perpendicular to the plane where the vertical legs and the steel beams are located; characterized in that: The steps include: S1: According to the elevator shaft design drawings, the steel structure elevator shaft is divided into N sections in advance; S2: Prepare channel steel support rods and connectors according to the pre-divided elevator shaft segment dimensions; the channel steel support rods include longitudinal support rods and transverse support rods, the length of the longitudinal support rods is adapted to the spacing between the upper and lower adjacent transverse legs, and the length of the transverse support rods is adapted to the spacing between the left and right adjacent transverse legs; S3: Assemble each elevator shaft segment on the ground, and check the inter-layer spacing and verticality of the elevator shaft segment; connect the channel steel support rods between the adjacent horizontal legs on the open side of the elevator shaft segment through connectors; S4: Hoist each elevator shaft section piece by piece from bottom to top. After the elevator shaft section is hoisted to the installation position, re-measure the installation elevation and verticality to ensure that they are correct. Then weld and fix the end of the horizontal leg and the bottom end of the vertical leg on the open side of the elevator shaft section; S5: Dismantle the hoisting wire rope, remove the channel steel support rod and connectors, and install them in other elevator shaft sections to be constructed for circulation.

2. The method for installing a steel structure elevator shaft according to claim 1, characterized in that: In step S2, the connecting member is a connecting plate, both ends of the longitudinal support rod and the transverse support rod are provided with a first connecting hole, and one side of the connecting plate is provided with a second connecting hole corresponding to the first connecting hole; The specific steps of connecting the channel steel support rod between two adjacent transverse legs on one side of the elevator shaft segment opening through a connecting piece in step S3 include: S301: Welding the side of the connection plate away from the second connection hole to a position close to the end of the transverse leg on one side of the elevator shaft segment opening; S302: Connect the longitudinal support rod between the upper and lower adjacent transverse support legs through a connecting plate and connecting bolts, and connect the transverse support rod between the left and right adjacent transverse support legs through a connecting plate and connecting bolts; In step S5, the longitudinal support rods, the transverse support rods and the connecting plates are removed by cutting the connecting plates for recycling.

3. The method for installing a steel structure elevator shaft according to claim 1, characterized in that: In step S2, the connecting piece includes a plurality of C-type clips, each two C-type clips form a group, and clamp the horizontal support rod from the left and right sides respectively. The horizontal plate of the C-type clip is provided with a first connecting ear, and the vertical plate of the C-type clip is provided with a second connecting ear. The first connecting ear is vertically arranged and perpendicular to the horizontal plate, and the second connecting ear is vertically arranged and perpendicular to the vertical plate; the first connecting ear is provided with a third connecting hole, and the second connecting ear is provided with a fourth connecting hole; A third connecting ear is provided on both sides of the end of the longitudinal support rod, and a fifth connecting hole is provided on the third connecting ear corresponding to the third connecting hole of the first connecting ear; a sixth connecting hole is provided on the end of the transverse support rod corresponding to the fourth connecting hole of the second connecting ear The specific steps of connecting the channel steel support rod between two adjacent transverse legs on one side of the elevator shaft segment opening through a connecting piece in step S3 include: S301: Install C-type clamps near the end of the transverse legs on the open side of the elevator shaft section, with two C-type clamps forming a group to hold the transverse legs; S302: The ends of the longitudinal support rods are inserted into the left and right first connecting ears, the two third connecting ears are abutted against the inner sides of the two first connecting ears, and are matched with the connecting bolts through the third connecting holes and the fifth connecting holes to be connected and fixed between the upper and lower adjacent transverse supporting legs; the transverse support rods are matched with the connecting bolts through the fourth connecting holes and the sixth connecting holes to be connected and fixed between the left and right adjacent transverse supporting legs; In step S5, the connecting bolts are taken out, and the longitudinal support rods, transverse support rods and C-type clamps are removed for rotational use.

4. The method for installing a steel structure elevator shaft according to claim 1, characterized in that: Step S3 also includes welding a lifting lug at the proximal end of the horizontal leg at the top of the elevator shaft segment, and welding a connecting plate at the top of the vertical leg at the top of the elevator shaft segment. The lifting lug and the connecting plate are detachably equipped with a U-shaped shackle for connecting the lifting wire rope.

Images