A connecting member between an inclined ladder beam and a foundation beam in a building structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN SAGE CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-30
Smart Images

Figure CN224431860U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building structure technology, and in particular relates to a connecting component between an inclined ladder beam and a foundation beam in a building structure. Background Technology
[0002] In building structures, inclined stair beams are key load-bearing components of the staircase system. They are arranged along the inclined direction of the staircase, made of reinforced concrete, and through reasonable reinforcement, they bear and transfer the live load (people walking, etc.) and dead load (the weight of the steps and railings) of the staircase to the main structure, providing support for the steps and ensuring the stability and safety of the staircase. Foundation beams are load-bearing components of the building foundation, connecting the superstructure and the foundation, bearing vertical loads, resisting uneven settlement of the foundation, and coordinating the stress on the foundation.
[0003] The connection between the inclined ladder beam and the foundation beam needs to effectively transfer the load. Due to limitations in the design and construction process, some connection nodes have unclear force transmission paths and require further improvement in structural measures. Under load, the nodes may experience complex stress and insufficient deformation coordination, affecting the overall performance of the structure. Therefore, we need to design a connection component between the inclined ladder beam and the foundation beam in the building structure. By adding a stable structure at the concrete connection node between the foundation beam and the inclined ladder beam, the force transmission efficiency of the node can be enhanced, allowing live loads and dead loads to be transferred to the foundation more smoothly, effectively avoiding stress concentration, reducing the risk of node cracking and deformation, improving the collaborative performance of the beams, enhancing the overall stability and durability of the staircase and building structure, and ensuring long-term safe use. Utility Model Content
[0004] The purpose of this utility model is to provide a connecting component between inclined ladder beams and foundation beams in building structures, which has the advantages of strengthening the force transmission efficiency of nodes, optimizing the load transfer path, improving the coordinated stability of beams, and enhancing the overall durability and safety of the structure, so as to solve the above-mentioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A connecting member between a inclined ladder beam and a foundation beam in a building structure includes a foundation beam and a bottom plate welded to the bottom of the inclined ladder beam. A concrete foundation is provided at the bottom of the bottom plate. Multiple bolts are threaded through the top surface of the concrete foundation. Nuts are threaded onto the surfaces of the multiple bolts. Multiple longitudinal steel bars are provided at the bottom of the bottom plate. The multiple longitudinal steel bars are embedded in the interior of the concrete foundation. Multiple horizontal stirrups I are sleeved on the surface of the four longitudinal steel bars on the left side. Multiple horizontal stirrups II are sleeved on the surface of the four longitudinal steel bars on the left side. Two symmetrical transverse steel bars are welded to the top of the multiple longitudinal steel bars. A diagonal bracing steel bar is welded to the right side in front of the transverse steel bar on the rear side.
[0006] Preferably, each of the bolts is fitted with two symmetrical washers. The bottom of the upper washer is in contact with the bottom plate, and the bottom of the lower washer is in contact with the concrete foundation. The washers are in contact with the nuts.
[0007] Preferably, the top of the horizontal stirrup one and the horizontal stirrup two facing each other is fitted with tie bars, and the tie bars are sleeved on the surface of the four longitudinal steel bars in the middle.
[0008] Preferably, a supporting steel bar is welded to the right side of the surface of the transverse steel bar on the front side, and the rear end of the supporting steel bar is welded to the diagonal bracing steel bar.
[0009] Preferably, a connecting steel bar is welded to the right side of the rear side of the transverse steel bar, and the longitudinal steel bar, horizontal stirrup one, horizontal stirrup two, tie bar, transverse steel bar, supporting steel bar, diagonal bracing steel bar and connecting steel bar are all embedded in the interior of the concrete foundation.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model uses longitudinal steel bars, horizontal stirrups and transverse steel bars in combination, so that two transverse steel bars are welded to the top of the longitudinal steel bars, which makes the interior of the concrete foundation more solid. Finally, it stabilizes the connection nodes of the concrete foundation to the foundation beam and the inclined ladder beam, thus achieving the purpose of strengthening the force transmission efficiency of the nodes, optimizing the load transmission path, improving the coordinated stability of the beam, and enhancing the overall durability and safety of the structure.
[0012] 2. This utility model, through the setting of tie bars, uses tie bars as key components of the steel cage. By optimizing the connection form of the steel bars, it enhances the force transmission efficiency of local nodes, making the load transmission more uniform and smooth, effectively improving the overall stiffness and stability of the steel cage. During the construction stage, it can suppress the displacement and deformation of the steel bars, ensuring the precise forming of the steel cage. During the service stage, it helps the structural stress coordination, enhances crack resistance and load-bearing capacity, and lays a solid foundation for the overall project quality.
[0013] 3. By setting up supporting steel bars, the supporting steel bars, as key load-bearing components, can construct stable longitudinal steel bars, optimize the load transfer path, and efficiently distribute the upper load to the concrete foundation, thereby enhancing the shear and bending resistance of the foundation, avoiding stress concentration that could lead to foundation cracking, standardizing the arrangement of steel bars during construction, restraining concrete disturbance, and ensuring molding accuracy. Attached Figure Description
[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.
[0015] Figure 1This is a front view schematic diagram of one embodiment of the present utility model;
[0016] Figure 2 This is a top cross-sectional view of one embodiment of the present invention;
[0017] Figure 3 This is a front sectional view of one embodiment of the present invention;
[0018] Figure 4 This is a three-dimensional disassembled schematic diagram of one embodiment of the present utility model;
[0019] Figure 5 This is a schematic diagram of the steel cage structure according to one embodiment of the present invention.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Foundation beam, 2. Inclined ladder beam, 3. Bottom slab, 4. Concrete foundation, 5. Bolt, 6. Washer, 7. Nut, 8. Longitudinal reinforcement, 9. Horizontal stirrup 1, 10. Horizontal stirrup 2, 11. Tie bar, 12. Transverse reinforcement, 13. Support reinforcement, 14. Diagonal bracing reinforcement, 15. Connecting reinforcement. Detailed Implementation
[0022] In the following description, embodiments of the inclined ladder beam and foundation beam connection components in the building structure of this utility model will be described with reference to the accompanying drawings.
[0023] Figure 1-5This invention illustrates a connecting component between a inclined ladder beam and a foundation beam in a building structure according to an embodiment of the present invention. It includes a lower base plate 3 welded to the bottom of a foundation beam 1 and an inclined ladder beam 2. A concrete foundation 4 is provided at the bottom of the lower base plate 3. Multiple bolts 5 are threaded through the top surface of the concrete foundation 4. Nuts 7 are threaded onto the surfaces of each bolt 5. Two symmetrical washers 6 are fitted onto the surfaces of each bolt 5. The bottom of the upper washer 6 is in contact with the lower base plate 3, and the bottom of the lower washer 6 is in contact with the concrete foundation 4. The washers 6 are in contact with the nuts 7. Multiple longitudinal... Multiple longitudinal reinforcing bars 8 are embedded inside the concrete foundation 4. Multiple horizontal stirrups 9 are fitted onto the surface of the four longitudinal reinforcing bars 8 on the left side, and multiple horizontal stirrups 10 are fitted onto the surface of the four longitudinal reinforcing bars 8 on the left side. Tie bars 11 are attached to the top of the horizontal stirrups 19 and 10 on the opposite side. The tie bars 11 are fitted onto the surface of the four longitudinal reinforcing bars 8 in the middle. Through the installation of the tie bars 11, the tie bars 11, as a key component of the reinforcing cage, enhance the force transmission efficiency of local nodes by optimizing the reinforcing bar connection form, making the load transfer more uniform and smooth, and effectively… To improve the overall rigidity and stability of the reinforcing cage, during construction, it can suppress rebar displacement and deformation, ensuring precise forming of the cage. During service, it helps with structural stress coordination, enhances crack resistance and load-bearing capacity, and lays a solid foundation for overall project quality. Two symmetrical transverse rebars 12 are welded to the top of multiple longitudinal rebars 8. A diagonal bracing rebar 14 is welded to the right side in front of the rear transverse rebar 12. A supporting rebar 13 is welded to the right side of the surface of the front transverse rebar 12. The rear end of the supporting rebar 13 is welded to the diagonal bracing rebar 14. Through the setting of the supporting rebar 13, the supporting rebar 1... As a key load-bearing component, 3 can construct a stable longitudinal steel bar 8, optimize the load transfer path, and efficiently distribute the upper load to the concrete foundation 4, enhance the shear and bending resistance of the foundation, avoid stress concentration leading to foundation cracking, standardize the steel bar arrangement during construction, restrain concrete disturbance, and ensure forming accuracy. A connecting steel bar 15 is welded to the right side behind the rear transverse steel bar 12. The longitudinal steel bar 8, horizontal stirrup 1 9, horizontal stirrup 2 10, tie bar 11, transverse steel bar 12, supporting steel bar 13, diagonal bracing steel bar 14, and connecting steel bar 15 are all embedded inside the concrete foundation 4.
[0024] Working Principle: When this utility model is in use, when the inclined ladder beam 2 bears the live load from people walking on it, as well as the dead load generated by the weight of the steps and railings, these loads are transferred to the foundation beam through the welded joint between the inclined ladder beam and the foundation beam 1. The bottom plate 3 at the bottom of the foundation beam initially disperses the concentrated load to the joint area of the concrete foundation 4. Then, the longitudinal reinforcement 8 uses the bond force of the concrete to transfer the vertical load from the upper part to the foundation, ensuring the stability of the vertical force flow. At the same time, the horizontal stirrups 1 and 2 are wrapped with steel wires to prevent the longitudinal reinforcement 8 from bending and deforming due to the load, enhancing the integrity of the reinforcement skeleton and making the load evenly distributed in the horizontal direction. The transverse reinforcement 12 is welded... Connected to the top of the longitudinal reinforcement 8, when the node is subjected to shear force or tensile stress, it can work together to resist deformation and prevent the node from horizontally shifting or cracking. In order to strengthen the connection effect, the bolt 5 penetrates the bottom plate 3 and the concrete foundation 4, and the two are rigidly locked by the thread pre-tightening force. The washer 6 reduces the stress concentration around the bolt 5 hole and improves the durability of the node. The tie bar 11 is sleeved on the middle longitudinal reinforcement 8, connecting the horizontal stirrup 1 9 and the horizontal stirrup 2 10, filling the force transmission gap of the reinforcement skeleton and optimizing the force flow path. When encountering uneven settlement or lateral load, the triangular support and horizontal tie space structure formed by the welding of the supporting reinforcement 13, the diagonal bracing reinforcement 14 and the connecting reinforcement 15 will utilize the geometric stability of the triangle to enhance the lateral stiffness of the node area.
[0025] In summary, the connection between the inclined ladder beam and the foundation beam in this building structure, through the combined use of longitudinal reinforcement 8, horizontal stirrups 9, and transverse reinforcement 12, allows the two transverse reinforcements 12 to be welded to the top of the longitudinal reinforcement 8, thereby making the interior of the concrete foundation 4 more robust. Finally, it stabilizes the connection node between the concrete foundation 4 and the foundation beam 1 and the inclined ladder beam 2, thus achieving the purpose of strengthening the load transfer efficiency of the node, optimizing the load transfer path, improving the overall stability of the beam, and enhancing the overall durability and safety of the structure.
Claims
1. A connecting member for connecting a diagonal stringer to a foundation beam in a building structure, characterized by, The base plate (3) is welded to the bottom of the foundation beam (1) and the inclined ladder beam (2). A concrete foundation (4) is provided at the bottom of the base plate (3). Multiple bolts (5) are provided through the top surface of the concrete foundation (4). Nuts (7) are threaded onto the surface of the multiple bolts (5). Multiple longitudinal steel bars (8) are provided at the bottom of the base plate (3). The multiple longitudinal steel bars (8) are embedded in the concrete foundation (4). Multiple horizontal stirrups (9) are sleeved on the surface of the four longitudinal steel bars (8) on the left side. Multiple horizontal stirrups (10) are sleeved on the surface of the four longitudinal steel bars (8) on the left side. Two symmetrical transverse steel bars (12) are welded to the top of the multiple longitudinal steel bars (8). A diagonal bracing steel bar (14) is welded to the right side in front of the transverse steel bar (12) on the rear side.
2. The connecting member between the inclined ladder beam and the foundation beam in the building structure according to claim 1, characterized in that, Two symmetrical washers (6) are fitted on the surface of each of the bolts (5). The bottom of the upper washer (6) is in contact with the bottom plate (3), and the bottom of the lower washer (6) is in contact with the concrete foundation (4). The washers (6) are in contact with the nuts (7).
3. The connecting member between the inclined ladder beam and the foundation beam in the building structure according to claim 2, characterized in that, The top of the horizontal stirrup 1 (9) and the horizontal stirrup 2 (10) facing each other is fitted with a tie bar (11), which is sleeved on the surface of the four longitudinal steel bars (8) in the middle.
4. The connecting member between the inclined ladder beam and the foundation beam in the building structure according to claim 3, characterized in that, A supporting steel bar (13) is welded to the right side of the surface of the transverse steel bar (12) on the front side, and the rear end of the supporting steel bar (13) is welded to the diagonal bracing steel bar (14).
5. The connecting member between the inclined ladder beam and the foundation beam in the building structure according to claim 4, characterized in that, A connecting steel bar (15) is welded to the right side behind the rear transverse steel bar (12). The longitudinal steel bar (8), horizontal stirrup one (9), horizontal stirrup two (10), tie bar (11), transverse steel bar (12), supporting steel bar (13), diagonal bracing steel bar (14) and connecting steel bar (15) are all embedded in the concrete foundation (4).