A method for installing a laminated slab

Abstract

The application discloses a laminated slab installation construction method, comprising the following steps: two laminated slabs are assembled and installed by being spaced apart in the same horizontal state. The assembling and installing step is that the two laminated slabs are spaced apart in the same horizontal state, a hanger is spaced apart above the laminated slabs, the bottom of the four corners of the hanger is connected with the lifting ring screw through the lifting chain A, every two lifting ring screws are screwed in the laminated slab, the hanger hook is connected with the top of the four corners of the hanger through four lifting chains B, and the two laminated slabs are spaced apart in the same horizontal state through the laminated slab spacing assembly. After the two laminated slabs are guaranteed to be spaced apart in the same horizontal state through the laminated slab spacing assembly and present the laminated slab installation lifting construction stress system, the two laminated slabs are lifted through the hanger hook, the two laminated slabs are synchronously lifted from the placement point to the building installation point and then synchronously lowered, the two laminated slabs are beneficially assembled synchronously, and the problem that the two precast laminated slabs in the series lifting state cannot be synchronously lowered after being lifted into place is solved.

Description

Technical Field

[0001] This invention relates to a method for installing composite slabs, belonging to the field of composite slab construction technology. Background Technology

[0002] Prefabricated floor slabs are composed of precast composite slabs and cast-in-place reinforced concrete layers. When precast composite slabs are transported to the construction site, sometimes it is necessary to hoist two precast composite slabs simultaneously.

[0003] The hoisting of two precast composite slabs is described in Chinese Patent Publication No. CN110422752B. Although the two precast composite slabs are hoisted in series using two layers of hangers to achieve synchronous hoisting, the two precast composite slabs cannot be lowered synchronously after being hoisted into place in the series hoisting state. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a method for installing composite slabs.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a method for installing composite slabs, comprising the following steps:

[0007] The assembly and installation steps involve placing two laminated plates at the same horizontal level with a gap between them.

[0008] The assembly and installation steps are as follows: two composite plates are in the same horizontal state and spaced apart, with hangers spaced above the composite plates. The bottom of the four corners of the hangers are connected to the eye bolts by the lifting chains A. Every two eye bolts are screwed into the composite plates. The hooks are connected to the top of the four corners of the hangers by four lifting chains B. The two composite plates are spaced apart by the composite plate spacer assembly and are in the same horizontal state.

[0009] The composite plate spacer assembly includes a screw, an outer clamping plate, a nut, an inner clamping plate, a double-headed telescopic component, and a mounting plate;

[0010] The screw is installed in the eye bolts on two different laminated plates. The outer clamping plate is slidably fitted on the end of the screw. The outer clamping plate is screwed onto the screw by a nut. The two outer clamping plates are subjected to opposing forces and can clamp the outer sides of the two laminated plates inward.

[0011] Two inner clamping plates are slidably fitted in the middle of the screw. A double-headed telescopic component is installed between the inner clamping plates. The double-headed telescopic component is slidably installed on the screw via a mounting plate. After the double-headed telescopic component extends, it pushes against the two inner clamping plates and contacts the two stacked plates to create a gap, so that one stacked plate is clamped by one inner clamping plate and one outer clamping plate; at this time, there is a gap between the two stacked plates.

[0012] The double-headed telescopic component is either a threaded double-headed telescopic component or a pneumatic double-headed telescopic component.

[0013] The composite plate spacer assembly consists of two sets spaced apart.

[0014] The pre-embedded threaded sleeve in the composite plate engages with the lifting eye screw.

[0015] The eye bolt has a through hole that is interference-fitted with the screw.

[0016] Both the inner and outer clamping plates are made of wood, or the inner clamping plate is made of rubber and the outer clamping plate is made of steel.

[0017] The lifting eye bolt is fixed with a pull rope made of steel rope, and a gourd-shaped damping component is fixed to the top of the pull rope. The bottom of the gourd damping component passes through the through hole of the hanger. The gourd damping component is made of elastic rubber, and the multi-layer gourd shape of the gourd damping component is larger than the diameter of the through hole of the hanger.

[0018] Following the assembly and installation steps, a hoisting step is also included; the hoisting step is as follows: the hook lifts two laminated slabs that are at the same horizontal level, and the two laminated slabs are kept at the same horizontal level by the laminated slab spacer assembly, so that the two laminated slabs are lifted synchronously from the placement point to the building installation point and then lowered synchronously.

[0019] The beneficial effects of this invention are as follows: After the two composite slabs are kept at the same horizontal level by the composite slab spacer assembly, the two composite slabs are lifted by the hooks, so that the two composite slabs are lifted synchronously from the placement point to the building installation point and then lowered synchronously. This facilitates the synchronous assembly of the two composite slabs and solves the problem that the two prefabricated composite slabs cannot be lowered synchronously after being hoisted into place in the series hoisting state. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the hoist damping component of the present invention on the hanger;

[0022] In the diagram: 1-Laminated plate; 2-Hanger; 21-Hanging chain A; 22-Eye ring screw; 3-Hanging hook; 31-Hanging chain B; 4-Screw; 41-Outer clamping plate; 42-Nut; 43-Inner clamping plate; 44-Double-head telescopic component; 45-Mounting plate; 5-Pull rope; 51-Hoop damping component. Detailed Implementation

[0023] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0024] like Figures 1 to 2 As shown.

[0025] The present application discloses a method for installing composite slabs, comprising the following steps:

[0026] Assembly and installation: There are hangers 2 on the top of two stacked plates 1 that are at the same level and spaced apart. The bottom of the four corners of the hanger 2 is connected to the eye bolts 22 by the lifting chain A21. Every two eye bolts 22 are screwed into the pre-embedded screw sleeves in the stacked plate 1. The hooks 3 are connected to the top of the four corners of the hanger 2 by four lifting chains B31.

[0027] The eye bolts 22 on the two different composite plates 1 are equipped with screw rods 4. The ends of the screw rods 4 are slidably fitted with outer clamping plates 41. The outer clamping plates 41 are screwed onto the screw rods 4 by nuts 42. The two outer clamping plates 41 are subjected to opposing forces and can clamp the outer sides of the two composite plates 1 inward. The two inner clamping plates 43 are extended and pushed outward to the inner side of the composite plates 1 by double-headed telescopic members 44, so that one composite plate 1 is clamped by one inner clamping plate 43 and one outer clamping plate 41.

[0028] Two inner clamping plates 43 are slidably fitted in the middle of the screw 4. A double-headed telescopic component 44 is installed between the inner clamping plates 43. The double-headed telescopic component 44 is a threaded double-headed telescopic component or a pneumatic double-headed telescopic component. The double-headed telescopic component 44 is slidably installed on the screw 4 via a mounting plate 45. After the double-headed telescopic component 44 extends, it pushes against the two inner clamping plates 43 and contacts the two stacked plates 1 to create a gap. This ensures that the two stacked plates 1 are in a spaced state, presenting a stacked plate installation and lifting construction force system for hoisting.

[0029] The screw 4, outer clamping plate 41, nut 42, inner clamping plate 43, double-headed telescopic component 44, and mounting plate 45 constitute a composite plate spacer assembly, which consists of two sets spaced apart. After the eye bolt 22 is screwed into the pre-embedded threaded sleeve of the composite plate 1, the two inner clamping plates 43, mounting plate 45, and two outer clamping plates 41 are distributed at corresponding positions on the sides of the two composite plates 1, and then the screw 4 passes through them in sequence. The through hole provided in the eye bolt 22 for the screw 4 is an interference fit to ensure that it cannot rotate arbitrarily.

[0030] Both the inner clamping plate 43 and the outer clamping plate 41 are made of wood, or the inner clamping plate 43 is made of rubber and the outer clamping plate 41 is made of steel.

[0031] The eye bolt 22 is fixed with a pull rope 5 made of steel rope. The top of the pull rope 5 is fixed with a gourd-shaped damping component 51. The bottom of the gourd damping component 51 passes through the through hole of the hanger 2. The multi-layer gourd shape of the elastic rubber gourd damping component 51 is larger than the diameter of the through hole of the hanger 2. When the chain A21 breaks, the pull rope 5 pulls the gourd damping component 51 to undergo elastic damping deformation and gradually get stuck in the through hole of the hanger 2, which plays a damping and buffering protection role.

[0032] Lifting: After the hook 3 is connected to the cable of the crane or tower crane, the two composite slabs 1 are lifted. The two composite slabs 1 are kept at the same level by the composite slab spacer assembly, so that the two composite slabs 1 are lifted synchronously from the placement point to the building installation point and then lowered synchronously. This facilitates the synchronous assembly of the two composite slabs 1 and solves the problem that the two prefabricated composite slabs in the series lifting state cannot be lowered synchronously after being lifted into place.

Claims

1. A method for installing composite slabs, characterized in that, Includes the following steps: The assembly and installation steps of two laminated plates (1) are performed with the gaps in the same horizontal state; The assembly and installation steps are as follows: two composite plates (1) are in the same horizontal state and spaced apart. There is a hanger (2) spaced above the composite plate (1). The bottom of the four corners of the hanger (2) is connected to the eye bolt (22) through the hanging chain A (21). Every two eye bolts (22) are screwed into the composite plate (1). The hook (3) is connected to the top of the four corners of the hanger (2) through four hanging chains B (31). The two composite plates (1) are spaced apart and in the same horizontal state through the composite plate spacer assembly. The composite plate spacer assembly includes a screw (4), an outer clamping plate (41), a nut (42), an inner clamping plate (43), a double-headed telescopic component (44), and a mounting plate (45); The screw (4) is installed in the eye bolt (22) on two different composite plates (1). The outer clamping plate (41) is slidably fitted on the end of the screw (4). The outer clamping plate (41) is screwed onto the screw (4) by the nut (42). The two outer clamping plates (41) are subjected to opposing forces and can clamp the outer sides of the two composite plates (1) inward. Two inner clamping plates (43) are slidably fitted in the middle of the screw (4). A double-headed telescopic component (44) is installed between the inner clamping plates (43). The double-headed telescopic component (44) is slidably installed on the screw (4) through the mounting plate (45). After the double-headed telescopic component (44) extends, it pushes against the two inner clamping plates (43) and contacts the two stacked plates (1) to create a gap, so that one stacked plate (1) is clamped by one inner clamping plate (43) and one outer clamping plate (41); at this time, there is a gap between the two stacked plates (1). The eye bolt (22) is fixed with a pull rope (5) made of steel rope. A gourd-shaped damping component (51) is fixed to the top of the pull rope (5). The bottom of the gourd damping component (51) passes through the through hole of the hanger (2). The gourd damping component (51) is made of elastic rubber. The multi-layer gourd shape of the gourd damping component (51) is larger than the diameter of the through hole of the hanger (2). Following the assembly and installation steps, a hoisting step is also included; The hoisting steps are as follows: the hook (3) lifts the two composite plates (1) that are at the same horizontal level. The two composite plates (1) are kept at the same horizontal level by the composite plate spacing component, so that the two composite plates (1) are lifted synchronously from the placement point to the building installation point and then lowered synchronously.

2. The composite slab installation method as described in claim 1, characterized in that: The double-headed telescopic component (44) is a threaded double-headed telescopic component or a pneumatic double-headed telescopic component.

3. The composite slab installation method as described in claim 1, characterized in that: The composite plate spacer assembly consists of two sets spaced apart.

4. The composite slab installation method as described in claim 1, characterized in that: The inner clamping plate (43) and the outer clamping plate (41) are both wooden boards, or the inner clamping plate (43) is a rubber plate and the outer clamping plate (41) is a steel plate.

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