Prefabricated beam component of a fabricated structure
By using bolted connections between the clamps and support bases and through-fixing with limit rods, the problem of position adjustment during the hoisting of precast ground beams was solved, improving the shear bearing capacity of the ground beams and the stability of the connection nodes, preventing corrosion, and achieving uniform load transfer and positioning accuracy of the ground beams.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIASHAN NINGHUI NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-21
AI Technical Summary
When hoisting precast ground beams, the relative positions of the ground beams, precast foundations, and steel columns need to be manually adjusted, which can lead to misalignment of nodes, insufficient anchorage length of reinforcing bars, weakening of node connection strength, and affecting the vertical bearing capacity of the ground beams.
The system employs bolted connections between clamps and support seats, and through-fixing with limit rods. The steel column load is evenly transferred to the ground beam via steel plates, avoiding localized stress concentration, enhancing shear bearing capacity, and using pads to prevent rainwater and dust from entering the connection gaps, thus preventing corrosion of the steel components.
The triple positioning of the ground beam was achieved, which improved the shear bearing capacity, avoided steel plate deformation caused by hard contact, ensured the horizontal assembly of the ground beam and the stability of the connection nodes, and prevented corrosion.
Smart Images
Figure CN224531882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a precast beam component, specifically a precast beam component with an assembled structure, and belongs to the technical field of precast beam components. Background Technology
[0002] In the factory, standardized molds are used to complete the rebar binding, concrete pouring and curing, forming precast ground beam components that meet the strength requirements. After being transported to the site, the ground beams are precisely positioned to the precast foundation or pre-set nodes of the steel columns using hoisting equipment. Then, the nodes are fixed by grouting sleeves, welding of pre-embedded rebars, and grouting with micro-expansion concrete. Finally, the beams work together with precast columns, wall panels and other components to form an overall load-bearing system, ensuring the vertical load-bearing capacity and horizontal resistance to lateral displacement of the structure.
[0003] However, during the hoisting of precast ground beams, manual adjustments are required using pry bars and shims to repeatedly adjust the relative positions of the ground beams with respect to the precast foundation and steel columns, in order to align the grouting sleeves or embedded reinforcing bars. If the flatness deviation of the foundation top surface is large, it can easily lead to misalignment between the ground beam and the joint. Even if the connection is barely completed, problems such as insufficient anchorage length of the reinforcing bars in the grouting sleeve and eccentric welding of the embedded reinforcing bars will still occur frequently, directly weakening the joint connection strength and reducing the vertical bearing capacity of the ground beam. Utility Model Content
[0004] The purpose of this utility model is to provide a prefabricated beam component with an assembled structure to solve the above problems. By bolting the clamps and support bases and fixing them through the limit rods, the vertical load of the steel column is evenly transferred to the ground beam through the steel plate, avoiding local stress concentration and improving the shear bearing capacity of the ground beam.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: a prefabricated beam component of an assembled structure, including a steel column, on which a limiting mechanism is fixedly installed. The limiting mechanism includes a support seat and a locking rod. Two locking rods are symmetrically fixedly connected to the steel column. The steel column and the locking rods are fixedly connected to the support seat by bolts. A limiting seat is welded to the part of the steel column near the top of the support seat. A steel plate is fitted inside the limiting seat. A limiting rod passes through the steel plate and the limiting seat. Bolts are installed at both ends of the limiting rod. A pad is adhered to the steel plate. A ground beam is cast between the two steel plates.
[0006] Preferably, the pad abuts against the limiting seat, and the steel plate contacts the top of the support seat.
[0007] Preferably, the steel plate is provided with two symmetrical slots, and the part of the limiting seat that contacts the steel plate is provided with an inclined structure.
[0008] Preferably, a lifting lug is fixedly connected to the top of the steel plate, and the lifting lug is located at the end of the steel plate near the ground beam.
[0009] Preferably, a fixing mechanism is installed at the bottom of the steel column. The fixing mechanism includes a concrete base and positioning rods. Two sets of positioning rods are engaged on the steel column, and a concrete base is poured at the bottom of the positioning rods.
[0010] Preferably, the fixing mechanism further includes a pad, and the pad is sleeved on the positioning rod, with the pad contacting the bottom end of the steel column.
[0011] Preferably, the positioning rod penetrates the inner wall of the pad and the steel column, and the positioning rod is fixedly connected to the steel column by bolts.
[0012] The beneficial effects of this utility model are as follows: triple positioning is achieved through the positioning support seat, the locking seat engaging the steel plate, and the locking rod locking the position; the bolt connection between the locking rod and the support seat, and the through-fixation of the locking rod, ensure that the vertical load of the steel column is evenly transferred to the ground beam through the steel plate, avoiding local stress concentration and improving the shear bearing capacity of the ground beam; the pad between the steel plate and the locking seat can compensate for minor errors in the welding of the steel column or the pouring of the ground beam, avoiding deformation of the steel plate caused by hard contact, and at the same time reducing the impact of vibration load on the connection node when the equipment is running; the tight contact between the pad and the locking seat can prevent rainwater and dust from entering the connection gap, avoiding corrosion of the steel components; compared with traditional point contact, the surface contact increases the force-bearing area, and the vertical support force of the support seat on the steel plate is more uniform, avoiding bending of the steel plate due to excessive local stress and ensuring that the steel plate remains horizontal during the pouring of the ground beam. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.
[0015] Figure 3 This is a schematic diagram of the connection structure between the steel column and the support base of this utility model;
[0016] Figure 4 This is a schematic diagram of the connection structure between the steel column and the clamping rod of this utility model;
[0017] Figure 5 This is a schematic diagram of the connection structure between the ground beam and the steel plate of this utility model.
[0018] In the diagram: 1. Steel column; 2. Fixing mechanism; 201. Concrete base; 202. Pad block; 203. Positioning rod; 3. Ground beam; 4. Limiting mechanism; 401. Steel plate; 402. Support seat; 403. Limiting seat; 404. Locking rod; 405. Limiting rod; 406. Pad plate; 5. Lifting lug; 6. Locking groove. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figures 1-5 As shown, a prefabricated beam component of an assembled structure includes a steel column 1. A limiting mechanism 4 is fixedly installed on the steel column 1. The limiting mechanism 4 includes a support base 402 and a locking rod 404. Two locking rods 404 are symmetrically fixedly connected to the steel column 1. The steel column 1 and the locking rods 404 are fixedly connected to the support base 402 by bolts. A limiting seat 403 is welded to the part of the steel column 1 near the top of the support base 402. A steel plate 401 is fitted inside the limiting seat 403. A crane hook is used to hook the lifting lug 5 at the top of the steel plate 401 and slowly lift the steel plate 401 to the side of the steel column 1. The angle of the steel plate 401 is adjusted so that the locking groove 6 provided in the steel plate 401 is aligned with the limiting seat 403 on the steel column 1. Using the inclined structure of the limiting seat 403, the steel plate 401 is slowly slid in along the inclined surface until the steel plate 401 is fully inserted. The slot 6 on plate 1 is fully engaged with the limiting seat 403, and the bottom surface of the steel plate 401 can fully contact the top of the support seat 402. A limiting rod 405 passes through the steel plate 401 and the limiting seat 403. Bolts are installed at both ends of the limiting rod 405. A pad 406 is bonded to the steel plate 401. A ground beam 3 is cast between the two steel plates 401. The pad 406 abuts against the limiting seat 403. The top of the steel plate 401 contacts the top of the support seat 402. Two slots 6 are symmetrically provided on the steel plate 401. The part of the limiting seat 403 that contacts the steel plate 401 is set with an inclined structure. Then the limiting rod 405 is inserted to ensure that the limiting rod 405 passes through the preset holes of the steel plate 401 and the limiting seat 403. The fixed through-hole of the limiting rod 405 can prevent the steel plate 401 from shifting during the assembly of the ground beam 3.
[0021] As a technical optimization of this utility model, a lifting lug 5 is fixedly connected to the top of the steel plate 401. The lifting lug 5 is located at the end of the steel plate 401 near the ground beam 3. The lifting lug 5 at the top of the steel plate 401 is hooked by a crane hook, and the steel plate 401 is slowly lifted to the side of the steel column 1.
[0022] As a technical optimization of this utility model, a fixing mechanism 2 is installed at the bottom of the steel column 1. The fixing mechanism 2 includes a concrete base 201 and a positioning rod 203. Two sets of positioning rods 203 are clamped on the steel column 1. The bottom end of the positioning rod 203 is cast with a concrete base 201. A pad 202 is sleeved on the positioning rod 203. The pad 202 is sleeved on the positioning rod 203 so that the pad 202 contacts the bottom end of the steel column 1 when the steel column 1 is fixed. The pad 202 contacts the bottom end of the steel column 1. The positioning rod 203 passes through the pad 202 and the inner wall of the steel column 1. The positioning rod 203 is fixedly connected to the steel column 1 by bolts. A crane is used to hook the lifting point at the top of the steel column 1 and put the bottom end of the steel column 1 into the positioning rod 203 so that the steel column 1 is in close contact with the pad 202. The bolts are inserted and tightened. The verticality of the steel column 1 is checked by a theodolite. If the deviation exceeds the standard, the number of pads 202 can be increased or decreased to adjust the verticality.
[0023] In use, this utility model is first used to perform three-dimensional layout and positioning using a total station according to the axis and elevation control lines marked on the construction drawings, ensuring that the installation position of the concrete base 201 matches the design. Then, a truck crane is used to smoothly lift the concrete base 201 to the designated position using specialized lifting equipment. During the lifting process, workers are present to assist in straightening and prevent the concrete base 201 from rotating or shifting in the air. After the concrete base 201 is in place, its top surface elevation is immediately re-measured using a precision level. If an elevation deviation is found, a thin steel plate can be placed under the concrete base 201 to level it. If it is higher than the design value, the bottom surface of the base 201 needs to be lightly ground with an angle grinder. Next, debris is cleaned from the top of the positioning rod 203, and a pad 202 is fitted onto the positioning rod 203 to ensure the pad... When block 202 is fixed, it contacts the bottom end of the steel column 1. Then, a crane hooks the lifting point at the top of the steel column 1, and the bottom end of the steel column 1 is fitted into the positioning rod 203, so that the steel column 1 and the block 202 are in close contact. Bolts are inserted and tightened. The verticality of the steel column 1 is checked with a theodolite. If the deviation exceeds the standard, the number of blocks 202 can be increased or decreased to adjust. The support base 402 is placed below the steel column 1, so that the support base 402 is in close contact with the steel column 1 and the clamping rod 404. Bolts are inserted and tightened to ensure that the support base 402 is rigidly connected to the steel column 1 and the clamping rod 404. A lifting point is preset at the top of the steel column 1. The steel column 1 is slowly lifted by a crane. When the verticality of the steel column 1 is close to vertical, workers assist and guide it on both sides of the base to accurately fit the bottom end of the steel column 1 into the positioning rod 203. The steel column 1 is then lowered to the bottom. After the top surface of the pad 202 is closed, immediately insert high-strength bolts and tighten them symmetrically to the designed torque using a torque wrench. Then, use a total station to check the verticality of the steel column 1. Use a crane hook to hook the lifting lug 5 on the top of the steel plate 401 and slowly lift the steel plate 401 to the side of the steel column 1. Adjust the angle of the steel plate 401 so that the slot 6 inside the steel plate 401 is aligned with the limiting seat 403 on the steel column 1. Using the inclined structure of the limiting seat 403, slowly slide the steel plate 401 along the inclined surface until the slot 6 on the steel plate 401 is fully engaged with the limiting seat 403, and at this point, the bottom surface of the steel plate 401 can fully contact the top of the support base 402. Then, insert the limiting rod 405, ensuring that the limiting rod 405 passes through the pre-set holes in the steel plate 401 and the limiting seat 403. The limiting rod 405 is then fixed in place. To prevent the steel plate 401 from shifting during the assembly of the ground beam 3; install nuts at both ends of the limit rod 405 and tighten them symmetrically with a torque wrench according to the design torque. During the tightening process, observe the state of the pad 406 to ensure that the pad 406 is in close contact with the inner wall of the limit seat 403, forming a rigid connection between the steel plate 401, the limit seat 403, and the limit rod 405. The close contact of the pad 406 can prevent rainwater and dust from entering the connection gap, prevent the steel components from rusting, and is suitable for outdoor humid environments. The crane lifts the ground beam 3 between the two steel plates 401, adjusts the position of the ground beam 3 so that both ends of the ground beam 3 are completely in contact with the top surface of the steel plate 401, and uses a total station to check the coaxiality between the axis of the ground beam 3 and the axis of the steel column 1. After confirming that there is no error, fix the ground beam 3 to the steel plate 401 by pre-embedded bolts or welding.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A prefabricated beam component of an assembled structure, comprising a steel column (1), characterized in that: A limiting mechanism (4) is fixedly installed on the steel column (1). The limiting mechanism (4) includes a support base (402) and a locking rod (404). Two locking rods (404) are symmetrically fixedly connected on the steel column (1). The steel column (1) and the locking rods (404) are fixedly connected to the support base (402) by bolts. A limiting seat (403) is welded to the part of the steel column (1) near the top of the support base (402). A steel plate (401) is fitted inside the limiting seat (403). A limiting rod (405) passes through the steel plate (401) and the limiting seat (403). Bolts are installed at both ends of the limiting rod (405). A pad (406) is glued to the steel plate (401). A ground beam (3) is poured between the two steel plates (401).
2. A prefabricated beam component of an assembled structure according to claim 1, characterized in that: The pad (406) abuts against the limiting seat (403), and the steel plate (401) contacts the top of the support seat (402).
3. A prefabricated beam component of an assembled structure according to claim 1, characterized in that: Two slots (6) are symmetrically provided on the steel plate (401), and the part of the limiting seat (403) that contacts the steel plate (401) is set with an inclined structure.
4. A prefabricated beam component of an assembled structure according to claim 1, characterized in that: The top of the steel plate (401) is fixedly connected to a lifting lug (5), which is located at the end of the steel plate (401) near the ground beam (3).
5. A prefabricated beam component of an assembled structure according to claim 1, characterized in that: The bottom end of the steel column (1) is equipped with a fixing mechanism (2), which includes a concrete base (201) and a positioning rod (203). Two sets of positioning rods (203) are engaged on the steel column (1), and the bottom end of the positioning rod (203) is cast with a concrete base (201).
6. A prefabricated beam component of an assembled structure according to claim 5, characterized in that: The fixing mechanism (2) also includes a pad (202), on which the pad (202) is sleeved, and the pad (202) contacts the bottom end of the steel column (1).
7. A prefabricated beam component of an assembled structure according to claim 6, characterized in that: The positioning rod (203) penetrates the inner wall of the pad (202) and the steel column (1), and the positioning rod (203) is fixedly connected to the steel column (1) by bolts.