Primary and secondary beam joint reinforcing structure for load transfer
By setting up power arm and additional steel bars in the main second beam node area, the second beam load is transferred to the top of the main beam, which solves the problem of restricted main beam reinforcement. Cracks and cracks.
Patent Information
- Application Number
- CN202420968912.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In industrial buildings, the reinforcement of main beams is restricted and cannot be implemented, resulting in the reinforcement structure of the node area that needs to be improved to meet the usage requirements.
By setting up the power arm that is higher than the main beam in the main and second beam node area, the transmission arm and additional steel bars are used to transfer the load of the second beam to the top of the main beam to achieve the transfer of the load and the reinforcement of the main and second beams.
The reinforcement structure effectively avoids the tear and cracks of concrete in the lower part of the main and secondary node domain. It is clear, simple, and easy to implement. It provides a effective node reinforcement scheme for special circumstances where the main beam cannot reinforce.
Smart Images
Figure CN222414179U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building structure reinforcement engineering, in particular to a load-transferring primary and secondary beam node reinforcement structure. Background Art
[0002] In cast-in-place reinforced concrete floors (roofs), the concentrated loads transferred from the secondary beams to the main beams should all be borne by the additional transverse reinforcements (hoops or hanger bars) in the main beams.
[0003] During use, when the concentrated load transmitted from the secondary beam to the main beam increases and exceeds the carrying capacity of the additional transverse reinforcement in the main beam, the main beam in the node area should be reinforced. Generally, U-shaped hoops (plates) are set around the main beam on both sides of the secondary beam in the node area for reinforcement. However, in some special cases in industrial buildings, the reinforcement of the main beam is restricted and cannot be implemented. The conventional node reinforcement structure must be improved to meet the use requirements. Utility Model Content
[0004] In order to solve the above problems, based on the situation that the main beam reinforcement is limited and cannot be implemented, the utility model provides a load transfer main and secondary beam node reinforcement structure, which transforms the main beam reinforcement into secondary beam reinforcement. The technical solution of the utility model is as follows:
[0005] A load-transferring primary-secondary beam node reinforcement structure comprises a primary beam; a secondary beam flush with the bottom of the primary beam; a force transfer arm higher than the main beam, the force transfer arm being arranged in the primary-secondary beam node area along the secondary beam direction; stirrups wrapping the secondary beam; and longitudinal steel bars arranged at the top of the force transfer arm and parallel to the secondary beam.
[0006] In the node area of the primary and secondary beams, a force transfer arm higher than the main beam is set along the direction of the secondary beam. With the top of the main beam as the fulcrum, the concentrated load of the secondary beam acting on the lower part of the main beam (or within the cross-sectional height range) is transferred to the top of the main beam through the force transfer arm and additional steel bars, thereby avoiding tearing and cracking of the concrete in the lower part of the node area of the primary and secondary beams.
[0007] Furthermore, the structure also includes duck tendons placed on the top of the main beam.
[0008] Furthermore, the force transmission arm is a cast-in-place reinforced concrete member which is parallel to the secondary beam, higher than the main beam and has a rectangular plane shape, similar to a "pole" supported on the top of the main beam.
[0009] Furthermore, the structure is suitable for strengthening building structures.
[0010] Furthermore, the stirrups are a plurality of ring-shaped steel bars that uniformly wrap around the secondary beam.
[0011] Furthermore, the longitudinal reinforcement is a plurality of parallelly arranged reinforcements, which are arranged at the top of the force transmission arm perpendicular to the stirrups.
[0012] Furthermore, stirrups, longitudinal reinforcements and duck tendons are arranged in the force transfer arm.
[0013] The longitudinal reinforcement parallel to the secondary beam at the top, the stirrups wrapping the secondary beam, and the duck bars placed on the top of the main beam constitute additional reinforcement, which are arranged in the force transfer arm and are responsible for the internal force transmission. The stirrups are equivalent to the "ropes" at both ends of the "pole" to tie the secondary beam.
[0014] The reinforcement of the node area of the primary and secondary beams of the utility model is changed from the reinforcement of the primary beam to the reinforcement of the secondary beam. The reinforcement structure has clear force transmission, simple structure and is easy to implement, providing an effective and feasible node reinforcement scheme for special renovation projects where the main beam cannot be reinforced. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of one embodiment of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure in another direction of one embodiment of the utility model;
[0017] Figure 3 for Figure 1 Top view of the . DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0019] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood by people with ordinary skills in the field. The words "first", "second" and similar words used in this embodiment do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Install", "connect", "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. "Up", "down", "left", "right", "horizontal" and "vertical" are only used relative to the orientation of the components in the drawings. These directional terms are relative concepts. They are used for description and clarification relative to the components, and they can change accordingly according to the change of the orientation of the components in the drawings. Example 1
[0020] like Figure 1 , 2 As shown in Figure 3, the load transfer main and secondary beam node reinforcement structure of this embodiment includes a main beam 1; a secondary beam 2 flush with the bottom of the main beam 1; a force transfer arm 3 higher than the main beam 1, and the force transfer arm 3 is arranged in the main and secondary beam node area along the direction of the secondary beam 2; stirrups 4, wrapping the secondary beam 2; longitudinal steel bars 5, arranged on the top of the force transfer arm 3, parallel to the secondary beam 2. Example 2
[0021] like Figure 1 , 2 As shown in FIG. 3 , the load transfer primary and secondary beam node reinforcement structure of this embodiment is:
[0022] It includes a main beam 1; a secondary beam 2 flush with the bottom of the main beam 1; a force transmission arm 3 higher than the main beam 1, and the force transmission arm 3 is arranged in the node area of the main and secondary beams along the direction of the secondary beam 2; stirrups 4, wrapping the secondary beam 2; longitudinal steel bars 5, arranged on the top of the force transmission arm 3, parallel to the secondary beam 2. It also includes duck bars 6 placed on the top of the main beam 1. The stirrups 4, the longitudinal steel bars 5 and the duck bars 6 are arranged in the force transmission arm. Example 3
[0023] like Figure 1 , 2 As shown in Figure 3, the load transfer structure for the primary and secondary beam nodes of this embodiment is suitable for strengthening building structures, and includes a primary beam 1; a secondary beam 2 flush with the bottom of the primary beam 1; a force transfer arm 3 higher than the primary beam 1, and arranged in the primary and secondary beam node area along the direction of the secondary beam 2; stirrups 4, wrapping the secondary beam 2; and longitudinal steel bars 5, arranged at the top of the force transfer arm 3, parallel to the secondary beam 2. The force transfer arm 3 is a cast-in-place reinforced concrete member parallel to the secondary beam 2, higher than the primary beam 1, and rectangular in plane shape, similar to a "pole" supported on the top of the main beam 1. The load of the secondary beam 2 is transferred to the top of the main beam.
[0024] The stirrups 4 are multiple ring-shaped steel bars that evenly wrap around the secondary beam 2, which is equivalent to the "ropes" at both ends of the "pole".
[0025] The longitudinal reinforcement 5 is a plurality of parallel reinforcements, which are arranged at the top of the force transmission arm 3 perpendicular to the stirrups 4. The duck tendons 6 are placed at the top of the main beam 1.
[0026] The load within the cross-sectional height range transmitted by the secondary beam 2 to the main beam 1 is transferred to the top of the main beam 1 through the force transfer arm 3 and stirrups 4, longitudinal reinforcements 5 and duck reinforcements 6 as additional reinforcements, thereby avoiding tearing of the concrete in the lower part of the node area.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A load transfer primary and secondary beam node reinforcement structure, characterized in that: It includes a main beam; a secondary beam that is flush with the bottom of the main beam; A force transfer arm higher than the main beam, which is arranged in the node area of the main and secondary beams along the direction of the secondary beam; stirrups, wrapping the secondary beam; Longitudinal reinforcement is arranged at the top of the force transfer arm and parallel to the secondary beam.
2. The primary and secondary beam node reinforcement structure according to claim 1 is characterized in that: The structure also includes duck tendons placed on top of the main beam.
3. The primary and secondary beam node reinforcement structure according to claim 1 is characterized in that: The force transmission arm is a cast-in-place reinforced concrete component which is parallel to the secondary beam, higher than the main beam and has a rectangular plane shape.
4. The primary and secondary beam node reinforcement structure according to claim 1, characterized in that: The structure is suitable for reinforcing building structures.
5. The primary and secondary beam node reinforcement structure according to claim 1 is characterized in that: The stirrups are multiple ring-shaped steel bars that evenly wrap the secondary beam.
6. The primary and secondary beam node reinforcement structure according to claim 1, characterized in that: The longitudinal reinforcement is a plurality of parallel steel bars arranged perpendicular to the stirrups and disposed at the top of the force transfer arm.
7. The primary and secondary beam node reinforcement structure according to claim 2 is characterized in that: Stirrups, longitudinal reinforcement and duck tendons are located inside the force transfer arm.