Reinforcing device for post-cast section of precast beam
By setting up a combined structure of connecting plates and high-strength bolts on both sides of the rear cast section of the prefabricated beam, the reinforcement problem of weak parts during the lifting of the prefabricated beam is solved, and efficient and safe temporary reinforcement is achieved, adapting to different length needs and reducing material waste.
Patent Information
- Application Number
- CN202420805619.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-04-18
AI Technical Summary
During the lifting of prefabricated beams, the post-cast section is a weak part, and there is a risk of deformation and damage. The existing technology is difficult to effectively reinforce, which affects construction safety and efficiency.
A combined structure of connecting plates and connecting bolts is adopted. By setting up connecting plates on both sides of the rear cast section of the prefabricated beam, and bolt holes are opened on the connecting plates and prefabricated beams, high-strength bolt connections are used, and anti-slip nuts are combined to achieve reinforcement.
Additional auxiliary connection measures are provided to avoid deformation and damage of prefabricated beams during lifting. They are efficient, safe, versatile, and can be recycled to reduce material waste.
Smart Images
Figure CN223088973U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building construction, in particular to the construction technology of prefabricated buildings, and specifically to a reinforcement device for the post-cast section of a precast beam. Background Technique
[0002] With the popularization of prefabricated buildings, the overall prefabricated frame structure system is widely used at present. Among them, the precast composite beam is the main precast component in the prefabricated frame structure. For the intersection position of the primary and secondary beams, a post-cast section is usually reserved on the precast primary beam for secondary casting on site. The post-cast section divides the precast beam into two or more segments and is only connected by bottom longitudinal reinforcement. Therefore, this is a weak part during the hoisting operation of the precast beam, and it must be temporarily reinforced before hoisting at the factory. Therefore, ensuring the safety, versatility, and efficiency of temporary reinforcement is an urgent problem to be solved at present. Summary of the Invention
[0003] The purpose of the utility model is to overcome the above defects and propose a temporary reinforcement measure for the post-cast section of the precast beam during hoisting, so as to avoid damage to the precast beam during the hoisting process.
[0004] To achieve the above purpose, the utility model is implemented as follows:
[0005] A reinforcement device for the post-cast section of a precast beam includes a connecting plate and connecting bolts. There are two connecting plates, which are respectively arranged on both sides of the post-cast section of the precast beam, and the connecting bolts are used to connect the two connecting plates located on both sides of the post-cast section of the precast beam.
[0006] For the situation where the post-cast section of the current precast beam is only connected by bottom reinforcement, the above reinforcement device proposed by the utility model provides an additional auxiliary connection measure, thus avoiding problems such as deformation and damage of the post-cast section during the hoisting process of the precast beam.
[0007] Further, in the reinforcement device proposed by the utility model, bolt holes are opened on the connecting plate and the precast beam, and high-strength bolts are arranged in the bolt holes on the connecting plate and the precast beam, so as to connect the connecting plate and the precast beam. In this way, it is convenient to remove the reinforcement device from the precast beam later.
[0008] Further, in the reinforcement device proposed by the utility model, the connecting plate is an angle steel. Rectangular chutes are respectively opened on the two web plates of the angle steel, and connecting bolts are respectively arranged in the chutes to connect the two connecting plates located on both sides of the post-cast section of the precast beam. In this way, the reinforcement device proposed by the utility model can adapt to post-cast sections with different opening distances.
[0009] Furthermore, in the reinforcement device proposed by the present utility model, an anti-slip nut is further included. After the connecting bolts connect the connecting plates, the anti-slip nut is screwed onto the end of the connecting bolts to prevent accidental detachment of the connecting bolts.
[0010] With the above structure, the reinforcement device proposed by the present utility model has the following advantages:
[0011] 1. The reinforcement can be achieved by assembling high-strength bolts and angle steels, and the reinforcement method is fully prefabricated, with high reinforcement efficiency.
[0012] 2. Through the intermediate length adjustment holes, the reinforcement requirements for the post-cast sections of main beams with different lengths can be met, and it has versatility. 3. The reinforcement device can be recycled, reducing material waste.
[0013] 4. Due to construction accuracy reasons, the relative positions of the pre-embedded high-strength bolt holes on the precast beams in the traditional reinforcement method often cannot fully match the relative positions of the pre-embedded holes on the reinforcement angle steels. The reinforcement angle steels often need to be reamed twice before installation. Since the performance of the reinforcement angle steels is greatly affected after reaming, the reinforcement method is not safe. The present invention has low requirements for the accuracy of the pre-embedded high-strength bolt holes on the precast beams, does not require reaming, the two-sided reinforcement angle steels overlap each other and the length is adjusted through the intermediate adjustment holes, with high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic structural view of the connecting plate in the reinforcement device proposed by the present utility model Figure 1 .
[0015] Figure 2 It is a schematic structural view of the connecting plate in the reinforcement device proposed by the present utility model Figure 2 .
[0016] Figure 3 It is a schematic view of the usage state of the reinforcement device proposed by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The following further illustrates the present utility model through specific embodiments.
[0018] As Figures 1 to 3 shown, a reinforcement device for the post-cast section of a precast beam includes a connecting plate 1 made of angle steel. There are two connecting plates 1 and they are located on both sides of the post-cast section of the precast beam. Bolt holes are opened in the connecting plate 1 and the precast beam, and high-strength bolts 2 are arranged in the bolt holes to connect the connecting plate 1 and the precast beam. As the angle steel of the connecting plate 1, rectangular chutes 3 are respectively opened on the two webs of the angle steel, and connecting bolts are respectively arranged in the chutes 3 to connect the two connecting plates 1 located on both sides of the post-cast section of the precast beam. After the connecting bolts connect the connecting plates, the anti-slip nut is screwed onto the end of the connecting bolts to prevent accidental detachment of the connecting bolts.
[0019] For the reinforcement device of the post-cast section of the above precast beam, high-strength bolts are also used for the connecting bolts.
[0020] When this reinforcement device is used, the total length of the angle steel is adjusted through the length adjustment hole in the middle to match the length of the post-cast section of the precast beam. After adjusting the length of the angle steel, the two angle steels are fixed by two connecting bolts to form a rigid whole, and the other end of the angle steel is fixed to the precast concrete at the other end of the post-cast section through the pre-embedded high-strength bolts in advance. In this way, through two rigid reinforcements, it ensures that the precast beam will not deflect or deform during the hoisting of the precast beam after installation, guaranteeing the structural safety of the precast beam. After the precast beam is installed at the corresponding position at the construction site, this reinforcement device is then removed.
[0021] This reinforcement device can be assembled with high-strength bolts and the angle steel for reinforcement. The reinforcement method is fully prefabricated. Through the length adjustment hole in the middle, it can meet the reinforcement requirements of post-cast sections of different lengths of precast beams. The installation can be achieved through high-strength bolts, and it is convenient to disassemble and assemble and can be reused.
Claims
1. A reinforcement device for the post-cast section of a precast beam, including the post-cast section of the precast beam, characterized in that: It further includes connecting plates and connecting bolts. There are two connecting plates which are respectively arranged on both sides of the post-cast section of the precast beam. The connecting bolts are used to connect the two connecting plates located on both sides of the post-cast section of the precast beam; bolt holes are opened on the connecting plates and the precast beam, and high-strength bolts are arranged in the bolt holes on the connecting plates and the precast beam, so as to connect the connecting plates and the precast beam; the connecting plates are angle steels, rectangular sliding grooves are respectively opened on the two webs of the angle steel, and connecting bolts are respectively arranged in the sliding grooves, so as to connect the two connecting plates located on both sides of the post-cast section of the fabricated beam; it further includes anti-slip nuts. After the connecting bolts connect the connecting plates, the anti-slip nuts are screwed onto the ends of the connecting bolts to prevent the accidental detachment of the connecting bolts.
2. The reinforcement device for the post-cast section of the precast beam according to claim 1, wherein: The connecting bolts are high-strength bolts.