A column for seismic resistance

Abstract

The utility model relates to the technical field of beam column, and disclose a kind of column for seismic fortification, the column for seismic fortification, including lower column body, the top end surface of lower column body is fixedly connected with longitudinal reinforcement, the lateral wall of longitudinal reinforcement is provided with stirrup, the top of lower column body is provided with upper column body, the lateral wall of lower column body is provided with frame beam assembly.The column for seismic fortification, prefabricated cement board forms stable lateral closed structure, avoid the idle connection space around lower column body, to improve the overall structure and the applicability of seismic fortification, the plug-in cooperation of plug rod and sleeve, and utilize the linkage structure of movable block and bolt, so that upper column body can be automatically completed locking after being lowered in place, without additional alignment, tightening or multiple operations, upper column body can be completed preliminary fixation during hoisting in position, reduce field manual operation time, improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of beam and column technology, specifically to a column used for seismic fortification. Background Technology

[0002] As an important load-bearing component of a building structure, the seismic fortification capacity of columns is mainly reflected in their ability to maintain the overall stability and load-bearing capacity of the structure under earthquake action. Through reasonable cross-sectional design, material selection, and connection methods with beams and foundations, columns can resist horizontal seismic forces and vertical seismic responses, avoiding buckling, fracture, or overall instability. Depending on the seismic fortification intensity, columns usually need to meet the corresponding material strength, ductility, and joint construction requirements to ensure that the structure can absorb energy deformation and control the failure mode during an earthquake, thereby protecting the building's safety and functionality.

[0003] According to a public notice (Announcement No.: CN221702747U) regarding an adjustable beam-column support node for railway viaducts, the application includes: a prefabricated lower column, which is set on the ground and has a lower connector at the end away from the ground; and a prefabricated upper column, which has an upper connector at the end near the prefabricated lower column, and the upper connector can be detachably connected to the lower connector to form a preliminary node.

[0004] Although the aforementioned prefabricated beams and columns have high seismic fortification standards, the top four sides of the prefabricated columns have space for connection to form nodes with the prefabricated frame beams. In the actual assembly process, the prefabricated frame beams must be inserted, which limits the application of the assembly or requires additional formwork to close the connection, increasing the complexity of construction. In view of this, we propose a column for seismic fortification. Utility Model Content

[0005] The purpose of this utility model is to provide a column for earthquake-resistant design to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a column for seismic fortification, comprising a lower column body, longitudinal reinforcement fixedly connected to the top end face of the lower column body, stirrups provided on the side walls of the longitudinal reinforcement, an upper column body provided at the top of the lower column body, a frame beam assembly provided on the side walls of the lower column body, a connecting assembly provided on the side walls of the lower column body, the connecting assembly including a bracket fixedly connected to the top end face of the lower column body, a precast cement slab provided on the side walls of the lower column body, bolts fixedly connected to the side walls of the precast cement slab, the bolts being threadedly connected to nuts, and a sleeve fixedly connected to the top end face of the lower column body.

[0007] Preferably, the frame beam assembly includes a frame beam body, with bottom reinforcement bars fixedly connected to the side walls of the frame beam body. The bottom reinforcement bars are inserted into the longitudinal reinforcement bars. A clamp is fixedly connected to the top end face of the frame beam body, and the clamp is inserted into the top reinforcement bars. The lower column body and the frame beam body are connected through the top reinforcement bars and the bottom reinforcement bars.

[0008] Preferably, a support block is fixedly connected to the side wall of the lower column body. The top end face of the support block abuts against the bottom end face of the frame beam body, and the top end face of the support block abuts against the bottom end face of the precast cement slab. The support block supports the frame beam body and the precast cement slab.

[0009] Preferably, the connecting assembly further includes a plug rod fixedly connected to the bottom end face of the upper column body, the bottom end of the plug rod being movably connected to a movable block, and a pin being inserted into the side wall of the plug rod, thereby connecting the upper column body and the lower column body through the pin.

[0010] Preferably, the insert rod is inserted into the sleeve, and the pin is inserted into the inner wall of the sleeve, thereby achieving a preliminary connection between the upper column body and the lower column body.

[0011] Preferably, the bottom end face of the upper column body is fixedly connected with longitudinal reinforcement bars, and the side wall of the longitudinal reinforcement bars is provided with stirrups. By inserting the longitudinal reinforcement bars of the upper column body into the inner wall of the top longitudinal reinforcement bars of the lower column body, the seismic performance between the upper column body and the lower column body is improved.

[0012] Preferably, a shear-resistant groove is provided on the side of the frame beam body near the lower column body, and the number of shear-resistant grooves is set in several groups. The several groups of shear-resistant grooves are evenly spaced on the end face of the frame beam body to improve the connection strength between the frame beam body and the lower column body.

[0013] Preferably, a reserved casting frame is fixedly connected to the top end face of the frame beam body. The reserved casting frame has a semi-enclosed structure and guides the concrete so that the concrete can flow into the gap between the lower column body, the upper column body, the frame beam body and the precast cement slab.

[0014] Compared with the prior art, this utility model provides a column for seismic fortification, which has the following beneficial effects: 1. The column used for seismic fortification, through the setting of connecting components, prefabricated cement slabs, bolts and nuts to form a stable lateral closed structure, avoids empty connection space around the lower column body, thereby improving the overall structure and seismic fortification applicability. The plug-in cooperation between the plug rod and the sleeve, and the linkage structure of the movable block and the pin, enable the upper column body to be automatically locked after being lowered into place, without the need for additional alignment, tightening or multiple operations. The upper column body can be initially fixed during the hoisting and positioning process, reducing on-site manual operation time and improving assembly efficiency.

[0015] 2. The column used for seismic fortification guides and constrains the flow of concrete through the reserved casting frame, so that the concrete can flow along the predetermined path and flow evenly into the reserved gaps between the lower column body, the upper column body, the frame beam body and the precast cement slab, preventing the concrete from spreading or overflowing in an unexpected direction, so that the joint area can be fully filled by concrete. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the exploded structure of the main body of this utility model; Figure 3 This is a schematic diagram of the lower column body structure of this utility model; Figure 4 This is a schematic diagram of the upper column body structure of this utility model; Figure 5 This is a schematic diagram of the frame beam body structure of this utility model; Figure 6 This is a schematic diagram of the precast cement board structure of this utility model; Figure 7 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model.

[0017] In the diagram: 1. Lower column body; 2. Longitudinal reinforcement; 3. Stirrups; 4. Frame beam assembly; 401. Frame beam body; 402. Clamp; 403. Bottom reinforcement; 404. Top reinforcement; 5. Connecting assembly; 501. Bracket; 502. Precast concrete slab; 503. Bolt; 504. Nut; 505. Sleeve; 506. Insert rod; 507. Movable block; 508. Pin; 6. Support block; 7. Upper column body; 8. Reserved cast-in-place frame. Detailed Implementation

[0018] like Figures 1-7As shown, this utility model provides a technical solution: a column for seismic fortification, including a lower column body 1, a longitudinal reinforcement 2 fixedly connected to the top end face of the lower column body 1, a stirrup 3 provided on the side wall of the longitudinal reinforcement 2, an upper column body 7 provided on the top of the lower column body 1, a frame beam assembly 4 provided on the side wall of the lower column body 1, a connecting assembly 5 provided on the side wall of the lower column body 1, the connecting assembly 5 including a bracket 501 fixedly connected to the top end face of the lower column body 1, a precast cement slab 502 provided on the side wall of the lower column body 1, a bolt 503 fixedly connected to the side wall of the precast cement slab 502, the bolt 503 being threadedly connected to a nut 504, and a sleeve 505 fixedly connected to the top end face of the lower column body 1.

[0019] In one embodiment of this utility model, the frame beam assembly 4 includes a frame beam body 401. The side wall of the frame beam body 401 is fixedly connected with a bottom reinforcement 403, which is inserted into the longitudinal reinforcement 2. The top end face of the frame beam body 401 is fixedly connected with a clamp 402, which is inserted into the top reinforcement 404. The lower column body 1 and the frame beam body 401 are connected through the top reinforcement 404 and the bottom reinforcement 403.

[0020] A support block 6 is fixedly connected to the side wall of the lower column body 1. The top end face of the support block 6 abuts against the bottom end face of the frame beam body 401 and the bottom end face of the precast cement slab 502. The support block 6 supports the frame beam body 401 and the precast cement slab 502.

[0021] The connecting component 5 also includes a plug rod 506 fixedly connected to the bottom end face of the upper column body 7. The bottom end of the plug rod 506 is movably connected to a movable block 507, and a pin 508 is inserted into the side wall of the plug rod 506. The upper column body 7 and the lower column body 1 are connected by the pin 508.

[0022] The insertion rod 506 is inserted into the sleeve 505, and the pin 508 is inserted into the inner wall of the sleeve 505, thus realizing the initial connection between the upper column body 7 and the lower column body 1.

[0023] The bottom end face of the upper column body 7 is fixedly connected with longitudinal reinforcement 2, and the side wall of the longitudinal reinforcement 2 is provided with stirrup 3. By inserting the longitudinal reinforcement 2 of the upper column body 7 into the inner wall of the top longitudinal reinforcement 2 of the lower column body 1, the seismic performance between the upper column body 7 and the lower column body 1 is improved.

[0024] A shear groove is provided on the side of the frame beam body 401 near the lower column body 1. Several sets of shear grooves are provided, and the sets of shear grooves are evenly spaced on the end face of the frame beam body 401 to improve the connection strength between the frame beam body 401 and the lower column body 1.

[0025] During construction, the lower column body 1 is first prefabricated and fixedly installed on the foundation. The top end face of the lower column body 1 is pre-fixed with longitudinal reinforcement 2, and the side wall of the longitudinal reinforcement 2 is provided with stirrups 3 to improve the overall strength and seismic ductility of the top area of ​​the lower column body 1. At the same time, the top end face of the lower column body 1 is fixedly connected with a sleeve 505 for subsequent insertion and positioning of the upper column body 7.

[0026] Subsequently, the frame beam assembly 4 is installed on the side wall of the lower column body 1. The frame beam body 401 in the frame beam assembly 4, close to the lower column body 1, is connected to the bottom reinforcement 403 fixedly connected to its side wall and interlocked with the longitudinal reinforcement 2 on the top end face of the lower column body 1, thus achieving the initial connection between the frame beam body 401 and the lower column body 1. At the same time, the clamp 402 fixedly connected to the top end face of the frame beam body 401 is interlocked with the top reinforcement 404. Through the cooperation of the top reinforcement 404 and the bottom reinforcement 403, a stable force connection relationship is formed between the frame beam body 401 and the lower column body 1. During the installation of the frame beam body 401, the support block 6 fixedly connected to the side wall of the lower column body 1 is used to support the bottom end face of the frame beam body 401. The top end face of the support block 6 abuts against the bottom end face of the frame beam body 401, thereby sharing the vertical load of the frame beam body 401 and improving the overall installation stability.

[0027] Subsequently, a precast cement slab 502 is installed on the side wall of the lower column body 1. The precast cement slab 502 is fastened to the side wall by bolts 503 and nuts 504, forming a stable lateral closed structure. The top end face of the support block 6 abuts against the bottom end face of the precast cement slab 502, providing support for the precast cement slab 502 and thus improving the stability of the overall structure. The precast cement slab 502, bolts 503 and nuts 504 in the connecting component 5 form a stable lateral closed structure, avoiding empty connection space around the lower column body 1, thereby improving the overall structure and the applicability of seismic fortification.

[0028] After the installation of the lower column body 1 and its lateral components is completed, the upper column body 7 is installed on top of the lower column body 1. The bottom end face of the upper column body 7 is fixedly connected with a plug rod 506, and the plug rod 506 is inserted into the sleeve 505 provided on the top end face of the lower column body 1 to achieve the initial positioning between the upper column body 7 and the lower column body 1. A movable block 507 is movably connected to the bottom end of the insertion rod 506. After the movable block 507 contacts the inner bottom surface of the sleeve 505, the movable block 507 moves in the opposite direction towards the inside of the insertion rod 506, thereby pushing the pin 508 to move away from the insertion rod 506. The pin 508 is inserted into the side wall of the insertion rod 506 and is engaged with the inner wall of the sleeve 505, thus achieving a reliable initial connection and fixation between the upper column body 7 and the lower column body 1. Through the engagement of the insertion rod 506 and the sleeve 505, and utilizing the linkage structure of the movable block 507 and the pin 508, the upper column body 7 can be automatically locked after being lowered into place without additional alignment, tightening, or multiple operations. The upper column body 7 can be initially fixed during the hoisting and positioning process, reducing on-site manual operation time and improving assembly efficiency.

[0029] Meanwhile, the bottom end face of the upper column body 7 is also fixedly connected with longitudinal reinforcement 2, and the side wall of the longitudinal reinforcement 2 is provided with stirrups 3. By inserting the longitudinal reinforcement 2 of the upper column body 7 into the inner wall of the top longitudinal reinforcement 2 of the lower column body 1, a steel reinforcement splicing structure is formed between the upper and lower columns, thereby transmitting internal forces under seismic action and improving the seismic performance and ductility of the joint area. In addition, several sets of shear grooves are opened on the end face of the frame beam body 401 near the lower column body 1. The several sets of shear grooves are equally spaced. Through the mechanical interlocking effect between the shear grooves and the lower column body 1, the shear strength and connection reliability between the frame beam body 401 and the lower column body 1 are further improved.

[0030] In addition, a pre-cast frame 8 is fixedly connected to the top end face of the frame beam body 401. The pre-cast frame 8 has a semi-enclosed structure and guides the concrete so that the concrete can flow into the gap between the lower column body 1, the upper column body 7, the frame beam body 401 and the precast cement slab 502.

[0031] During concrete pouring, the concrete is injected from above the reserved pouring frame 8. The reserved pouring frame 8 guides and constrains the flow of the concrete, allowing it to flow along a predetermined path and evenly into the gaps between the lower column body 1, the upper column body 7, the frame beam body 401, and the precast cement slab 502. Since the reserved pouring frame 8 has a semi-enclosed structure, it plays a role in limiting and guiding the concrete during the pouring process, preventing the concrete from spreading or overflowing in an unexpected direction. This allows the joint area to be fully filled with concrete. After the concrete solidifies, the lower column body 1, the upper column body 7, the frame beam body 401, and the precast cement slab 502 form an integral connection structure through the subsequent pouring of concrete, completing the overall load-bearing structure of the joint area, reducing material waste during construction, and ensuring the forming quality of the joint area.

[0032] In this utility model, during use and construction, the lower column body 1 is first fixed to the foundation. Longitudinal reinforcement 2 and stirrups 3 are pre-set on its top end face, and a sleeve 505 is installed. Then, the frame beam assembly 4 is installed on the side wall of the lower column body 1. The frame beam body 401 is connected to the longitudinal reinforcement 2 via bottom reinforcement 403, and forms a stable connection with the top reinforcement 404 using clamps 402. Support blocks 6 provide support for the frame beam body 401 and the precast cement slab 502. The precast cement slab 502 is supported by bolts 503 and screws... The mother 504 is fixed to the side wall of the lower column body 1 to form a lateral closed structure. Then, the upper column body 7 is hoisted to the top of the lower column body 1. The insert rod 506 is inserted into the sleeve 505. The movable block 507 triggers the pin 508 to complete the locking. At the same time, the longitudinal reinforcement 2 of the upper and lower columns are interlocked. Finally, the concrete is poured through the reserved casting frame 8 to fill the gaps between the lower column body 1, the upper column body 7, the frame beam body 401 and the precast cement slab 502 and form an integral structure.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A column for seismic fortification, comprising a lower column body (1), wherein longitudinal reinforcement (2) is fixedly connected to the top end face of the lower column body (1), and stirrups (3) are provided on the side walls of the longitudinal reinforcement (2), and an upper column body (7) is provided on the top of the lower column body (1), characterized in that: The lower column body (1) is provided with a frame beam assembly (4) on its side wall, and a connecting assembly (5) is provided on its side wall. The connecting assembly (5) includes a bracket (501) fixedly connected to the top end face of the lower column body (1). The lower column body (1) is provided with a precast cement board (502) on its side wall. The precast cement board (502) is fixedly connected with a bolt (503) on its side wall. The bolt (503) is threadedly connected to a nut (504). The top end face of the lower column body (1) is fixedly connected with a sleeve (505).

2. A column for seismic fortification according to claim 1, characterized in that: The frame beam assembly (4) includes a frame beam body (401), the side wall of the frame beam body (401) is fixedly connected with a bottom reinforcement (403), the bottom reinforcement (403) is inserted into the longitudinal reinforcement (2), and the top end face of the frame beam body (401) is fixedly connected with a clamp (402), the clamp (402) is inserted into the top reinforcement (404).

3. A column for seismic fortification according to claim 1, characterized in that: The side wall of the lower column body (1) is fixedly connected with a support block (6). The top end face of the support block (6) abuts against the bottom end face of the frame beam body (401), and the top end face of the support block (6) abuts against the bottom end face of the precast cement slab (502).

4. A column for seismic fortification according to claim 1, characterized in that: The connecting component (5) also includes a plug rod (506) fixedly connected to the bottom end face of the upper column body (7), the bottom end of the plug rod (506) is movably connected to a movable block (507), and a pin (508) is inserted into the side wall of the plug rod (506).

5. A column for seismic fortification according to claim 4, characterized in that: The insertion rod (506) is inserted into the sleeve (505), and the pin (508) is inserted into the inner wall of the sleeve (505).

6. A column for seismic fortification according to claim 1, characterized in that: The bottom end face of the upper column body (7) is fixedly connected with a longitudinal bar (2), and the side wall of the longitudinal bar (2) is provided with a stirrup (3).

7. A column for seismic fortification according to claim 2, characterized in that: The frame beam body (401) has a shear groove on the side near the lower column body (1). The shear groove is provided in several groups, and the shear grooves are evenly spaced on the end face of the frame beam body (401).

8. A column for seismic fortification according to claim 2, characterized in that: The top end face of the frame beam body (401) is fixedly connected to a reserved casting frame (8), which has a semi-enclosed structure.

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