Prefabricated laminated slab mounting jacking beam device

Abstract

The utility model discloses a jacking beam device for mounting a prefabricated laminated slab, which belongs to the technical field of building construction and comprises a beam template and a slab template which are respectively connected with a floor slab, a jacking beam device is arranged in the beam template and is connected with the cast-in-place reinforcement cage; the top of the plate formwork is connected with a prefabricated laminated slab, and the prefabricated laminated slab is connected with the cast-in-place reinforcement cage; the problems of low hoisting efficiency of the prefabricated laminated slab component and interpenetration of the hoisting process of the laminated slab and the binding process of the beam reinforcing steel bar are solved through the arranged jacking beam device, rapid binding construction of the large-section beam reinforcing steel bar cage of the frame structure and fusion construction of the hoisting process of the prefabricated laminated slab and the binding process of the large-section beam reinforcing steel bar are realized, the construction efficiency is improved, and the construction cost is reduced. And the problems that the beam steel bar binding construction operation space is limited and the construction efficiency is low due to the fact that the prefabricated laminated slabs are firstly installed and then the beam steel bars are bound in an assembly type building are solved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a device for installing lifting beams on precast composite slabs. Background Technology

[0002] In traditional construction, the hoisting of precast composite slabs must be carried out after the reinforcement of the cast-in-place beams has been tied. However, this traditional method presents challenges for workers during the beam reinforcement cage tying process due to limited operating space. Furthermore, the pre-installed protruding reinforcement bars in the composite slabs are prone to colliding with the beam reinforcement, affecting construction progress and quality. In addition, it is difficult to adjust the height of the beam reinforcement during construction, failing to meet the needs of different construction stages. Summary of the Invention

[0003] To address the problems of existing technologies, this utility model provides a precast composite slab installation lifting beam device, comprising:

[0004] Beam formwork and slab formwork that are respectively connected to the floor slab;

[0005] The beam formwork is used to form the shape of the beam, and the beam formwork is located around the perimeter of the beam and arranged along the length of the beam; the slab formwork is used to form the plane of the floor slab and covers the floor slab.

[0006] The beam formwork is equipped with a lifting beam device, which is connected to the cast-in-place steel reinforcement cage.

[0007] The top of the slab formwork is connected to a precast composite slab, which is connected to the cast-in-place steel reinforcement cage.

[0008] The lifting beam device includes: a first connecting part and a second connecting part;

[0009] The first connecting part is connected to the beam formwork;

[0010] The second connecting part is connected at one end to the first connecting part, and the other end of the second connecting part is connected to the cast-in-place steel cage.

[0011] Furthermore, the first connecting part includes: a base, a supporting upright, a limiting circular tube, and an adjusting ring;

[0012] The base is connected to the beam template;

[0013] The supporting pole has a hollow structure, and one end of the supporting pole is connected to the top of the base;

[0014] The limiting tube is disposed inside the supporting upright, and the inner wall of the limiting tube is connected to the second connecting part;

[0015] The adjusting ring is sleeved on the threaded support, and the adjusting ring is used to adjust the length of the threaded support entering the limiting tube.

[0016] Furthermore, the second connecting part includes: an adjusting ring, a threaded support, a fastening bolt, and a cross brace;

[0017] The threaded support is threadedly connected inside the limiting round tube, and the top of the threaded support is connected to the cross brace of the supporting beam through a telescopic fastening bolt.

[0018] The cross bracing of the beam is connected to the cast-in-place steel reinforcement cage.

[0019] Furthermore, the longitudinal reinforcement bars of the cast-in-place steel cage are connected to the transverse bracing of the supporting beam.

[0020] Furthermore, the top of the lifting beam device is 1-1.5m away from the top of the beam template.

[0021] The beneficial effects of this utility model are:

[0022] The jacking beam device solves the problems of low hoisting efficiency of precast composite slab components and overlapping of composite slab hoisting and beam reinforcement binding processes. It enables rapid binding of reinforcement cages for large-section beams in frame structures, integrates the hoisting of precast composite slabs with the binding of reinforcement cages for large-section beams, and improves construction efficiency. It also avoids the problem of limited working space and low construction efficiency in beam reinforcement binding work caused by first installing precast composite slabs and then binding beam reinforcement in prefabricated buildings. Attached Figure Description

[0023] Figure 1 This is a front structural diagram provided by this utility model;

[0024] Figure 2 This is a cross-sectional structural schematic diagram provided by this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the lifting beam device provided by this utility model;

[0026] Figure 4 This is a side view of the lifting beam device provided by this utility model;

[0027] Figure 5 This is a top view of the lifting beam device provided by this utility model.

[0028] Figure label:

[0029] In the diagram: 1 is the heat insulation layer, 2 is the support layer, 3 is the adhesive layer, 4 is the anti-stick layer, and 5 is the silicone layer. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-5 This utility model provides a device for installing lifting beams on precast composite slabs, including: beam template 3 and slab template 5 respectively connected to the floor slabs;

[0032] The beam template 3 is used to form the shape of the beam, and the beam template 3 is located around the perimeter of the beam and arranged along the length of the beam; the slab template 5 is used to form the plane of the floor slab and covers the floor slab.

[0033] The beam formwork 3 is equipped with a lifting beam device 1, which is connected to the cast-in-place steel cage 2.

[0034] The top of the formwork 5 is connected to a precast composite slab 4, and the precast composite slab 4 is connected to the cast-in-place steel cage 2.

[0035] The lifting beam device 1 includes: a first connecting part and a second connecting part;

[0036] The first connecting part is connected to the beam template 3;

[0037] The second connecting part is connected at one end to the first connecting part, and the other end of the second connecting part is connected to the cast-in-place steel cage 2.

[0038] In some embodiments, the first connecting part includes: a base 1-1, a support rod 1-2, a limiting circular tube 1-3, and an adjusting ring 1-4;

[0039] The base 1-1 is connected to the beam template 3;

[0040] The supporting pole 1-2 has a hollow structure, and one end of the supporting pole 1-2 is connected to the top of the base 1-1;

[0041] The limiting tube 1-3 is disposed inside the supporting upright 1-2, and the inner wall of the limiting tube 1-3 is connected to the second connecting part;

[0042] The adjusting ring 1-4 is sleeved on the threaded support 1-5, and the adjusting ring 1-4 is used to adjust the length of the threaded support 1-5 entering the limiting round tube 1-3.

[0043] In some embodiments, the second connecting part includes: an adjusting ring 1-4, a threaded support 1-5, a fastening bolt 1-6, and a cross brace 1-7;

[0044] The threaded support 1-5 is threadedly connected to the limiting round tube 1-3, and the top of the threaded support 1-5 is connected to the cross brace 1-7 of the supporting beam through the telescopic fastening bolt 1-6.

[0045] The cross bracing 1-7 of the supporting beam is connected to the cast-in-place steel cage 2.

[0046] In some embodiments, the beam reinforcement 2-1 of the cast-in-place steel cage 2 is connected to the cross bracing 1-7 of the supporting beam.

[0047] In some embodiments, the top of the lifting beam device 1 is 1-1.5m away from the top of the beam template 3.

[0048] It should be noted that the connection relationships of the various components of the jacking beam device are as follows.

[0049] Welded connection: The base 1-1, support pole 1-2, and limiting circular tube 1-3 are welded together to form a whole structure. This connection method ensures the stability and rigidity of the bottom and support parts of the device, and can withstand the loads of the beam reinforcement cage and the construction process.

[0050] Threaded connection: The adjusting ring 1-4 and the threaded support 1-5 are integrated by threads. This connection method allows the threaded support 1-5 to move up and down within the limiting tube 1-3 when the adjusting ring 1-4 is rotated, thus achieving the height adjustment function.

[0051] Bolted connection: Fastening bolts 1-6 are welded onto threaded support 1-5, and threaded support 1-5 is connected to the cross brace 1-7 of the supporting beam through fastening bolts 1-6. This detachable connection method facilitates the assembly and disassembly of the device, and also makes it convenient to adjust and reuse in different construction scenarios.

[0052] 2. Connection relationship between the lifting beam device and other components

[0053] Connection to the cast-in-place beam reinforcement cage: The beam's continuous reinforcement bars 2-1 rest on the cross bracing 1-7 of the supporting beam and are secured with tie wire. This connection method allows the jacking beam device to erect the beam reinforcement bars, providing support for the binding of the beam reinforcement cage.

[0054] Positional relationship with beam formwork: The beam lifting device 1 is placed inside the beam formwork 3, 1-1.5 meters away from the beam end. If multiple devices are present, they can be evenly distributed within the beam formwork. The beam lifting device serves to support the beam reinforcement cage within the beam formwork, and its height adjustment is carried out within the space defined by the beam formwork.

[0055] 3. Connection relationships between other components

[0056] Cast-in-place beam reinforcement cage and beam formwork: The cast-in-place beam reinforcement cage 2 is placed inside the beam formwork 3. The beam formwork provides space for the reinforcement cage to form and lateral constraints, ensuring that the reinforcement cage maintains the correct shape and position during the concrete pouring process.

[0057] Precast composite slab and cast-in-place beam reinforcement cage: The precast composite slab 4 has pre-reserved protruding reinforcement bars, which are anchored into the cast-in-place beam reinforcement cage 2. This connection method makes the precast composite slab and the cast-in-place beam form an integral structure, sharing the load.

[0058] Beam formwork and slab formwork: Beam formwork 3 and slab formwork 5 are supported together on the floor slab. They cooperate with each other in space to form a complete formwork system, providing a closed space for concrete pouring.

[0059] Working principle

[0060] 1. Height adjustment principle of the lifting beam device

[0061] The height adjustment of the lifting beam device is mainly achieved through the threaded engagement of the adjusting ring 1-4 and the threaded support 1-5. When the adjusting ring 1-4 is rotated, the threaded support 1-5 moves up and down within the limiting tube 1-3 due to the action of the threads. Rotating the adjusting ring 1-4 in the forward direction raises the threaded support 1-5, thereby raising the cross brace 1-7 of the supporting beam and increasing the height of the lifting beam device; rotating the adjusting ring 1-4 in the reverse direction lowers the threaded support 1-5, causing the cross brace 1-7 of the supporting beam to lower as well, thus reducing the height of the lifting beam device.

[0062] 2. Working principle during construction

[0063] During the rebar cage binding stage: After setting up the beam formwork 3 and slab formwork 5 on the floor slab, place the lifting beam device 1 inside the beam formwork and fix the continuous beam reinforcement 2-1 to the cross bracing 1-7. Adjust the lifting beam device to a suitable height by rotating the adjusting ring 1-4, generally 30 cm away from the slab surface. This provides sufficient operating space for workers to easily bind the beam stirrups and install and bind the bottom reinforcement, web reinforcement, and reinforcing bars.

[0064] Precast composite slab installation stage: Use a chalk line to mark the edge lines of the composite slab, and hoist the precast composite slab 4. Because the lifting beam device erects the beam reinforcement, it avoids collision between the precast composite slab's reserved protruding reinforcement and the beam reinforcement, allowing the precast composite slab to be smoothly installed in the corresponding position.

[0065] Reinforcing cage repositioning stage: After the precast composite slab is installed in place, rotate adjusting ring 1-4 in the reverse direction to lower the height of the lifting beam device, allowing the cast-in-place beam reinforcing cage 2 to descend into the beam mold. After the reinforcing cage is in place, continue to rotate adjusting ring 1-4 so that the lifting beam device is lower than the beam reinforcing cage surface reinforcement, facilitating the subsequent removal of the lifting beam device.

[0066] During the dismantling and concrete pouring phase: unscrew bolts 1-6, remove cross braces 1-7 and other components from the support beam, and complete the reinforcement binding and pre-embedded construction in other areas. Finally, pour the concrete, following the principle of layered and symmetrical pouring, taking protective measures, and ensuring the quality of the concrete through vibration.

[0067] When pouring concrete, it should not be piled up in one place, but poured in layers and symmetrically. Protective measures should be taken below the working layer. No one should stand under the support when pouring concrete. The vibrator should be inserted quickly and lifted slowly, starting from the bottom layer and gradually moving upwards to ensure the construction quality between layers of concrete. Each vibration time should be 20-30 seconds (until no more air bubbles appear on the concrete surface and mortar rises to the surface).

[0068] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for installing a lifting beam on a precast composite slab, characterized in that, include: Beam formwork and slab formwork that are respectively connected to the floor slab; The beam formwork is used to form the shape of the beam, and the beam formwork is located around the perimeter of the beam and arranged along the length of the beam; the slab formwork is used to form the plane of the floor slab and covers the floor slab. The beam formwork is equipped with a lifting beam device, which is connected to the cast-in-place steel reinforcement cage. The top of the slab formwork is connected to a precast composite slab, which is connected to the cast-in-place steel reinforcement cage. The lifting beam device includes: a first connecting part and a second connecting part; The first connecting part is connected to the beam formwork; One end of the second connecting part is connected to the first connecting part, and the other end of the second connecting part is connected to the cast-in-place steel cage.

2. The precast composite slab installation lifting beam device according to claim 1, characterized in that, The first connecting part includes: a base, a support rod, a limiting circular tube, and an adjusting ring; The base is connected to the beam template; The supporting pole has a hollow structure, and one end of the supporting pole is connected to the top of the base; The limiting tube is disposed inside the supporting upright, and the inner wall of the limiting tube is connected to the second connecting part; The adjusting ring is sleeved on the threaded support of the second connection part, and the adjusting ring is used to adjust the length of the threaded support entering the limiting round tube.

3. The precast composite slab installation lifting beam device according to claim 2, characterized in that, The second connecting part includes: an adjusting ring, a threaded support, a fastening bolt, and a cross brace; The threaded support is threadedly connected inside the limiting round tube, and the top of the threaded support is connected to the cross brace of the supporting beam through a telescopic fastening bolt. The cross bracing of the beam is connected to the cast-in-place steel reinforcement cage.

4. The precast composite slab installation lifting beam device according to claim 3, characterized in that, The longitudinal reinforcement bars of the cast-in-place steel cage are connected to the transverse bracing of the supporting beam.

5. The precast composite slab installation lifting beam device according to claim 1, characterized in that, The top of the lifting beam device is 1-1.5m away from the top of the beam formwork.

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