Temporary haunching supporting device for fabricated laminated slab and laminated beam

Abstract

The utility model provides an assembly type composite slab and composite beam temporary haunching supporting device, and relates to the technical field of supporting devices, the assembly type composite slab and composite beam temporary haunching supporting device comprises a plurality of supporting seats and opposite-pull screw rods, each supporting seat comprises angle steel, reinforcing plates are arranged on the two sides of each angle steel, and screw rod holes for the opposite-pull screw rods to penetrate through are formed in the angle steel. The device is simple and convenient to operate and high in efficiency, shortens the construction period of a template project, reduces the cost while ensuring the quality, and brings certain economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of support device technology, specifically a temporary haunch support device for prefabricated composite slabs and composite beams. Background Technology

[0002] The development of prefabricated components in the construction industry is progressing rapidly. Prefabricated composite slabs and beams are widely used in various building construction projects. However, the support methods for prefabricated components have not been effectively simplified, failing to fully demonstrate the advantages of prefabricated structures in terms of formwork turnover materials. Currently, during composite slab construction, a large number of primary and secondary joists and frames are still required for support at the bottom of the slab. The number of formwork support frames and primary and secondary joists used has not been significantly reduced despite the adoption of prefabricated components, which is detrimental to green construction and the low-cost operation development direction of the increasingly competitive construction market. Summary of the Invention

[0003] In response to the aforementioned existing technologies, this utility model proposes a temporary haunch support device for prefabricated composite slabs and composite beams, which can reduce the input of turnover materials in prefabricated building projects while ensuring construction safety and quality, fully demonstrating the advantages of prefabricated building applications.

[0004] This utility model provides a temporary haunch support device for prefabricated composite slabs and composite beams, including several support seats and tie rods. The support seats include angle steel, and reinforcing plates are provided on both sides of the angle steel. The angle steel is provided with screw holes for the tie rods to pass through.

[0005] Preferably, the angle steel is an equilateral angle steel with a length of 200mm.

[0006] Preferably, the reinforcing plate is a 6mm thick triangular reinforcing steel plate.

[0007] Preferably, the pull screw includes a smooth rod portion, both ends of which are provided with threaded portions, and a matching nut is provided on the threaded portions.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The prefabricated composite slab and composite beam temporary haunch support device provided by this utility model allows for the installation of temporary haunch support devices at the pre-reserved screw holes on the composite beam after the composite beam is hoisted into place during construction. When the composite slab is hoisted, both ends rest on the temporary haunch support devices fixed on the composite beam. No other support materials are required at the bottom ends of the composite slab. The operation is simple and efficient, shortens the construction period of the formwork project, and reduces costs while ensuring quality, thus bringing certain economic benefits. Attached Figure Description

[0009] Figure 1This is a structural schematic diagram of the temporary haunch support device for the assembled composite slab and composite beam in an embodiment of this utility model.

[0010] Figure 2 This is a construction schematic diagram of the temporary haunch support device for the prefabricated composite slab and composite beam in this embodiment of the present invention.

[0011] In the diagram, 1 is angle steel; 2 is reinforcing plate; 3 is screw hole; 4 is smooth rod part; 5 is nut; 6 is threaded part; A is composite beam; B is composite plate; C is temporary armhole support device; D is double-sided tape; E is composite beam supporting lantern frame. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] Example: Figure 1 The present invention discloses a temporary haunch support device for prefabricated composite slabs and composite beams, comprising several support seats and tie rods. The support seats include angle steel 1, which is 200mm long equilateral angle steel. Reinforcing plates 2 are provided on both sides of the angle steel 1, which are 6mm thick triangular reinforcing steel plates. The angle steel 1 is provided with tie rod holes 3 for the tie rods to pass through. The tie rod holes 3 are 60mm long and 20mm wide.

[0014] Furthermore, the tie rod includes a smooth rod portion 4 with a diameter of 16mm. The length of the smooth rod portion 4 is selected according to the width of different composite beams. Both ends of the smooth rod portion 4 are provided with threaded portions 6 with a length of 100mm, and matching nuts 5 are provided on the threaded portions 6.

[0015] like Figure 2 As shown, the construction steps for this temporary axle support device are as follows:

[0016] (1) When producing composite beams, Φ20 PVC pipes are embedded on the composite beams at the corresponding positions of the two short sides of each composite plate according to the size of the composite plate. Adjacent closely spliced ​​composite plates share a temporary haunch support device with reserved screw holes at the joint. The height of the reserved screw holes is 20-80mm away from the composite surface of the composite beam.

[0017] (2) Erect a composite beam support lantern frame at a predetermined position at the bottom of the composite beam. The erection sequence is as follows: adjustable base, upright, horizontal bar, and diagonal brace. After the erection is completed, adjust the adjustable base so that the elevation of the top horizontal bar is up to the bottom elevation of the composite beam.

[0018] (3) Hoist the composite beams onto the lantern frame in sequence, check the position and elevation, and then fix them;

[0019] (4) Install tie rods of appropriate length in the reserved screw holes on the composite beam, install support seats and tie rods on the tie rods on both sides of the beam, adjust the top elevation of the support seat to be level with the elevation of the composite surface of the composite beam through the screw hole 3 on the support seat, and then tighten the nuts 5 at both ends so that the exposed length of the screws at both ends is consistent.

[0020] (5) Apply double-sided tape 10mm wide and along the entire length on both sides of the composite surface of the composite beam to prevent grout leakage from the gaps;

[0021] (6) When the span of the composite slab is greater than 2.5m, one or more independent supports shall be set in the middle of the bottom span of the slab according to the construction plan; when the span is less than or equal to 2.5m, no support shall be set in the middle of the bottom span of the slab.

[0022] (7) The composite slabs are hoisted and placed on the temporary haunch support device in sequence, and the position and elevation are checked;

[0023] (8) Construct the upper reinforcement and cast-in-place concrete according to the design drawings and construction plan;

[0024] (9) After the concrete strength of the cast-in-place layer reaches the condition that the formwork can be removed, the temporary haunch support device at the inside corner of the composite beam and composite slab is removed and reused on the upper floor.

[0025] In this embodiment, no supporting frame, formwork, or main and secondary joists are required at the intersection of the composite slab and the composite beam. The temporary haunch support device is made of angle steel and fixed to the composite beam by a tie rod. The height can be finely adjusted as needed. The installation and operation are convenient, and it can be disassembled and reused. The bottom of the composite beam is supported by a lantern frame, the number of which is determined according to the different beam spans and the upper load. The composite slab with a length of less than 2.5m can be unsupported at the mid-span, while the composite slab with a length of more than 2.5m can be equipped with one or more independent supports according to the span. The required turnover materials such as frames are less.

[0026] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent solutions made using the contents of this utility model specification, whether directly or indirectly applied to other related technical fields, are also within the patent protection scope of this utility model.

Claims

1. A temporary haunch support device for prefabricated composite slabs and composite beams, characterized in that, It includes several support bases and tie rods. The support bases include angle steel, and reinforcing plates are provided on both sides of the angle steel. The angle steel is provided with screw holes for the tie rods to pass through.

2. The temporary haunch support device for prefabricated composite slabs and composite beams as described in claim 1, characterized in that, The angle steel used is an equilateral angle steel with a length of 200mm.

3. The temporary haunch support device for prefabricated composite slabs and composite beams as described in claim 1 or 2, characterized in that, The reinforcing plate is made of 6mm thick triangular reinforcing steel plate.

4. The temporary haunch support device for prefabricated composite slabs and composite beams as described in claim 1 or 2, characterized in that, The pull screw includes a smooth rod portion, both ends of which are provided with threaded portions, and a matching nut is provided on the threaded portions.

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