Non-collision insertion construction complex stiff beam-column joint

Abstract

The utility model provides a kind of complex stiff beam column joint of no-collision insertion construction, including node stirrup, connecting plate, column inner section steel;The node stirrup is arranged on the outside of stiff column longitudinal reinforcement, when the intersection section at beam column joint is larger, two rows of longitudinal reinforcement are arranged in the inside of stiff column longitudinal reinforcement, when beam column is oblique, oblique beam longitudinal reinforcement is connected to connecting plate by reinforcing bar adapter, and connecting plate is fixedly connected with the outside of column inner section steel, the outside surface of connecting plate is inclinedly arranged;The utility model realizes high-quality connection of beam longitudinal reinforcement and column inner section steel at large-section beam column joint, ensures the compactness and durability of node, and provides reliable guarantee for no-collision insertion construction.

Description

Technical Field

[0001] This utility model relates to the field of building structure construction and joint construction, and in particular to complex stiff beam-column joints that can be constructed without collision. Background Technology

[0002] In the field of building construction, the stiffened beam-column joint, as the core component connecting the steel and concrete structures, plays a decisive role in the stability and safety of the overall structure due to its construction quality. Because complex stiffened beam-column joints are characterized by dense reinforcement distribution and intricate steel profile arrangement, traditional construction methods often encounter multiple difficulties: frequent collisions between reinforcement bars and steel profiles during the interlocking process significantly slow down construction progress; interference and disorder between reinforcement binding and steel profile installation within the joint area easily lead to rework; furthermore, the limited construction space makes it difficult to fully carry out concrete pouring and vibration operations, compromising the joint's compactness and thus adversely affecting the structural load-bearing performance. Therefore, achieving collision-free interlocking operations at complex stiffened beam-column joints, improving construction quality, and enhancing operational convenience are particularly important for the overall construction quality of the joint. Utility Model Content

[0003] The purpose of this utility model is to provide a collision-free, interlocking construction method for complex stiff beam-column joints that solves the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model provides a complex stiffened beam-column joint for non-collision intersecting construction, including joint stirrups, connecting plates, and column steel sections; the joint stirrups are arranged outside the longitudinal reinforcement of the stiffened column. When the intersection section at the beam-column joint is large, two rows of longitudinal reinforcement are densely arranged inside the longitudinal reinforcement of the stiffened column. When the beam and column intersect obliquely, the longitudinal reinforcement of the oblique beam is connected to the connecting plate through a steel bar connector, and the connecting plate is fixedly connected to the outside of the column steel section. The outer surface of the connecting plate is inclined.

[0005] Furthermore, the stiffening plate is connected to the outer perimeter of the steel section inside the column, and the rebar connector is connected to the outer side of the stiffening plate. The rebar is inserted into the rebar connector to connect the longitudinal reinforcement of the beam to the steel section inside the column.

[0006] Furthermore, several rectangular stirrups are staggered around the steel section inside the column, so that adjacent rectangular stirrups are vertically tied to form a three-dimensional constraint system.

[0007] Furthermore, the rhomboid diagonal stirrups are formed by at least two sets of single-limb stirrups of different lengths to create a rhomboid mesh structure. The end binding area of ​​the rhomboid diagonal stirrups avoids the vicinity of the internal steel section of the column, so that the rhomboid diagonal stirrups, nodal stirrups, and longitudinal stiffeners of the stiffening column together form a three-dimensional constraint system.

[0008] Furthermore, self-compacting concrete is poured in the beam-column joint area.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. This utility model enhances the integrity and shear resistance of large-section beam-column joints by using two rows of denser longitudinal bars on the inner side of the stiffening column longitudinal bars, combined with rectangular stirrups whose positions can be flexibly adjusted; at small-section joints, a diamond-shaped diagonal stirrup structure adapted to complex spaces is adopted, which not only avoids direct conflict between steel bars and steel sections, but also forms a three-dimensional constraint system, reducing the impact on concrete pouring.

[0011] 2. This utility model achieves high-quality connection of various components at the node by using stiffening plates, rebar connectors, and connecting plates. The cooperation between the stiffening plates and connectors ensures reliable connection between the longitudinal reinforcement of the beam and the steel section inside the column, reducing high-altitude work; the connecting plates are specifically designed to handle oblique beam-column intersections, resolving spatial conflicts without cutting the rebar, thus improving construction efficiency and ensuring the stress performance of the node.

[0012] 3. This utility model adopts self-compacting concrete for pouring joints, which can fill the gaps between dense steel bars and structural steel without vibration, completely solving the problem of traditional concrete being difficult to compact in complex joints, ensuring the quality of the core area of ​​the joint, and avoiding collision damage to steel components caused by vibration construction, further improving construction safety and joint durability. Attached Figure Description

[0013] Figure 1 Schematic diagram of a complex stiffened beam-column joint with a large cross-section;

[0014] Figure 2 Schematic diagram of a complex skewed stiffened beam-column joint.

[0015] Figure reference numerals: 1-Self-compacting concrete, 2-Longitudinal reinforcement of beam, 3-Stirrups at nodes, 4-Longitudinal reinforcement of stiffened column, 5-Steel section inside column, 6-Longitudinal reinforcement of skewed beam, 7-Stiffening plate, 8-Rebar connector, 9-Rectangular stirrup, 10-Rhomboid skewed stirrup, 11-Connecting plate, 12-Second row of longitudinal reinforcement. Detailed Implementation

[0016] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0018] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0019] like Figures 1-2The present invention provides a complex stiffened beam-column joint for non-collision and intersecting construction, comprising: beam longitudinal reinforcement 2, joint stirrups 3, stiffening plate 7, rebar connector 8, rectangular stirrups 9, stiffened column longitudinal reinforcement 4, connecting plate 11, column internal steel 5, rhomboid diagonal stirrups 10, and self-compacting concrete 1 poured at the complex stiffened beam-column joint; the joint stirrups 3 are arranged outside the stiffened column longitudinal reinforcement 4, and when the intersection section at the beam-column joint is large, two rows of longitudinal reinforcement 12 are densely arranged inside the stiffened column longitudinal reinforcement 4; the stiffening plate 7 is welded The steel section 5 inside the column is connected to the outer perimeter of the beam-column joint. The rebar connector 8 is welded to the outside of the stiffening plate 7 according to the design position. After the rebar is inserted into the rebar connector 8, mechanical rotation achieves a high-quality connection between the longitudinal reinforcement 2 of the beam and the steel section 5 inside the column at the beam-column joint. Several rectangular stirrups 9 are staggered around the steel section 5 inside the column, so that adjacent rectangular stirrups 9 are vertically tied, forming a three-dimensional constraint system. The tying can be flexibly adjusted according to the position of the steel section 5 inside the column, ensuring effective constraint on the joint area components while avoiding collisions with the steel components, thus increasing... The connection plate 11 is used in beam-column intersection scenarios. The longitudinal reinforcement 6 of the oblique beam is connected to the connection plate 11 through the rebar connector 8. The connection plate 11 is fixedly connected to the outer side of the steel section 5 inside the column. The outer surface of the connection plate 11 is inclined, which solves the spatial conflict problem between the longitudinal reinforcement 6 of the oblique beam and the steel section 5 inside the column. The connection plate 11 achieves a reliable connection, shortens the construction period, and ensures the stress performance of the node. The rhomboid oblique stirrup 10 is formed by at least two sets of single-limb stirrups of different lengths to form a rhomboid grid structure. The end binding area of ​​the rhomboid oblique stirrup 10 avoids the vicinity of the steel section 5 inside the column. The rhomboid arrangement adapts to the complex space of the node, which not only enhances the shear resistance of the node, but also avoids positional conflict with the steel section. The self-compacting concrete 1 is poured at the complex stiff beam-column node, which can fully wrap the steel section and rebar components inside the column. It can fill the gap between the dense rebar and steel section inside the node without vibration, which solves the problem that traditional concrete is difficult to compact in complex nodes, ensures the quality of the core area of ​​the node, and avoids collision with the steel components of the node during vibration construction.

[0020] like Figure 1As shown, when the node cross-section is large, the stiffening column longitudinal reinforcement 4 is arranged along the outside of the column inner steel 5, and the node stirrups 3 are wrapped around the outside of the stiffening column longitudinal reinforcement 4 to form the first lateral constraint; the second row of longitudinal reinforcement 12 is densely arranged inside the stiffening column longitudinal reinforcement 4. The layered layout of inner and outer layers of reinforcement avoids collisions caused by too small spacing, avoids longitudinal reinforcement collisions caused by large intersection sections at the beam-column node, and ensures the flow channel during concrete pouring. At the same time, it works with the node stirrups 3 to enhance longitudinal stress stability. Several rectangular stirrups 9 are tied perpendicularly to each other around the column inner steel 5 so that the rectangular stirrups 9, node stirrups 3, and stiffening column longitudinal reinforcement 4 together form a three-dimensional constraint system. The position can be flexibly adjusted to avoid the steel section during tying, strengthening the shear resistance and integrity of the node. The stiffening plate 7 is pre-welded to the outside of the column inner steel 5, and the rebar connector 8 is welded to the outside of the stiffening plate 7 according to the design position. After the ends of the beam longitudinal reinforcement 2 are connected to the rebar connector 8, their mechanical connection characteristics are used to achieve reliable fixation to the column inner steel 5. The node area is filled with self-compacting concrete 1, which fully encapsulates all the above-mentioned components. It can fill the dense gaps without vibration, and finally achieves collision-free interlocking construction of large cross-section nodes, ensuring the stress stability and construction efficiency of the nodes.

[0021] like Figure 2 As shown, in the case of skewed beam-column intersection, the longitudinal reinforcement 4 of the stiffening column is arranged along the outside of the internal steel section 5, and the node stirrups 3 surround the outside of the longitudinal reinforcement 4 of the stiffening column, forming the first lateral constraint; the rhomboid diagonal stirrups 10 are composed of two sets of single-limb stirrups of different lengths forming a rhomboid grid structure, and the end binding area avoids the vicinity of the internal steel section 5, so that the rhomboid diagonal stirrups 10, the node stirrups 3, and the longitudinal reinforcement 4 of the stiffening column together form a three-dimensional constraint system. During binding, the position can be flexibly adjusted to avoid the steel section, strengthening the shear resistance and integrity of the node. The rebar connector 8 is set according to the design position, and the end of the beam longitudinal reinforcement 2 is connected to the rebar connector 8; the connecting plate 11 fixes the rebar connector 8 at the end of the longitudinal reinforcement 6 of the skewed beam to the internal steel section 5, and uses its mechanical connection characteristics to achieve reliable fixation with the internal steel section 5, avoiding spatial conflict between the longitudinal reinforcement of the skewed beam and the steel section. The joint area is filled with self-compacting concrete 1, which fully encloses all the components such as the longitudinal reinforcement 4 of the stiffened column, the stirrup 3 of the joint, the rhomboid diagonal stirrup 10, the steel section 5 inside the column, the longitudinal reinforcement 2 of the beam, the longitudinal reinforcement 6 of the diagonal beam, the steel bar connector 8, and the connecting plate 11. This achieves precise implementation of complex joint construction without collision and ensures that the joint stress stability and construction efficiency meet the standards.

[0022] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A complex stiffened beam-column joint constructed without collision and interlocking, characterized in that: It includes node stirrups (3), connecting plates (11), and column steel (5); the node stirrups (3) are arranged outside the longitudinal reinforcement (4) of the stiffened column. When the cross section at the beam-column node is large, two rows of longitudinal reinforcement (12) are arranged densely inside the longitudinal reinforcement (4) of the stiffened column. When the beam and column intersect obliquely, the longitudinal reinforcement (6) of the oblique beam is connected to the connecting plate (11) through the steel bar connector (8), and the connecting plate (11) is fixedly connected to the outside of the column steel (5). The outer surface of the connecting plate (11) is inclined.

2. The complex stiffened beam-column joint constructed without collision as described in claim 1, characterized in that: The stiffening plate (7) is connected to the outer periphery of the internal steel section (5), and the rebar connector (8) is connected to the outer side of the stiffening plate (7). The rebar is inserted into the rebar connector (8) to connect the longitudinal reinforcement (2) of the beam with the internal steel section (5).

3. The complex stiffened beam-column joint constructed without collision as described in claim 1, characterized in that: Several rectangular stirrups (9) are staggered around the steel section (5) inside the column so that adjacent rectangular stirrups (9) are vertically tied to form a three-dimensional constraint system.

4. The complex stiffened beam-column joint constructed without collision as described in claim 1, characterized in that: The rhomboid diagonal stirrup (10) is formed by at least two sets of single-limb stirrups of different lengths to form a rhomboid mesh structure. The end binding area of ​​the rhomboid diagonal stirrup (10) avoids the vicinity of the column steel section (5) so that the rhomboid diagonal stirrup (10), the node stirrup (3), and the stiffening column longitudinal reinforcement (4) together form a three-dimensional constraint system.

5. The complex stiffened beam-column joint constructed without collision as described in claim 1, characterized in that: Self-compacting concrete was poured in the beam-column joint area (1).

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