Heavy load steel reinforced concrete column elevation lengthening integrated construction node and method

Abstract

The application discloses a heavy-load steel reinforced concrete column elevation lengthening integrated construction node and method, the construction node comprises a base fixedly installed at the top of a steel reinforced concrete column, and a reinforcing frame peripherally fixed to the base, the range surrounded by the reinforcing frame is formed into a containing groove, the containing groove is cross-connected by at least two transverse ribs and at least two longitudinal ribs to form a grid structure, thereby dividing the containing groove into a plurality of sub-grooves, the construction node further comprises a plurality of intelligent monitoring devices selectively arranged in some of the sub-grooves, and high-grade concrete poured into the containing groove and wrapped around all the transverse ribs and longitudinal ribs, a cover plate is sealingly installed at the top of the containing groove, and the difference between the top elevation of the cover plate and the top elevation of the base is the elevation deviation of the steel reinforced concrete column, and the application overcomes the defects of the traditional column lengthening + full-welding reinforcement treatment mode, and has high popularization value.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to an integrated construction node and method for extending the elevation of heavy-duty steel-concrete columns. Background Technology

[0002] In irregularly shaped structures, high-rise, super high-rise, and heavy-load building projects, steel structural columns often have a column top elevation lower than the design elevation due to construction errors, processing deviations, settlement deformation, and other reasons. The traditional solution is to directly extend the column and reinforce it with full welding, which is only suitable for conventional load conditions and has the following drawbacks:

[0003] 1) Insufficient load-bearing safety: Traditional full-welded long sections lack internal rib reinforcement, which cannot meet the load transfer requirements of hundreds or thousands of tons, and are prone to shear failure and local instability.

[0004] 2) Poor structural integrity: The joints are only welded externally and have no internal concrete restraint, resulting in weak resistance to horizontal shear and torsion.

[0005] 3) Lack of intelligent monitoring methods: After the elevation is extended, the stress and deformation become hidden and cannot be monitored in real time, which poses a risk of later settlement, cracking and instability.

[0006] 4) Poor adaptability: It cannot be specifically reinforced for heavy-duty core tube columns and steel-concrete composite structures. It has strong versatility but insufficient specialization. Summary of the Invention

[0007] This invention provides an integrated construction node and method for extending the elevation of heavy-duty steel-concrete columns, overcoming the defects of the traditional column direct extension + full welding reinforcement method.

[0008] To achieve the above objectives, the present invention provides an integrated construction node for extending the elevation of heavy-duty steel-concrete composite columns, comprising:

[0009] A base is fixedly installed on top of the steel-concrete column, and a reinforcing frame is fixed around the outer perimeter of the base. The area enclosed by the reinforcing frame forms a receiving groove. The receiving groove is divided into multiple sub-grooves by a grid structure formed by at least two transverse ribs and at least two longitudinal ribs. The construction node also includes multiple intelligent monitoring devices selectively installed in some of the sub-grooves, and high-grade concrete poured into the receiving groove to wrap and fix all the transverse ribs and all the longitudinal ribs. A cover plate is sealed on the top of the receiving groove, and the difference between the top elevation of the cover plate and the top elevation of the base is the elevation deviation of the steel-concrete column.

[0010] Preferably, the cover plate has at least two transverse welding grooves for at least two transverse ribs to be inserted into, and at least two longitudinal welding grooves for at least two longitudinal ribs to be inserted into.

[0011] Preferably, the multiple intelligent monitoring devices are evenly spaced along both the horizontal and vertical directions to form a quincunx arrangement within the receiving groove.

[0012] A method for integrated construction of elevation extension of heavy-duty steel-concrete composite columns, used for constructing the integrated construction node for elevation extension of heavy-duty steel-concrete composite columns, the method comprising the following steps:

[0013] A base is fixedly installed on the top of the steel-concrete column, and a fixed reinforcing frame is provided around the outer perimeter of the base so that the area enclosed by the reinforcing frame forms a receiving groove.

[0014] The receiving slot is divided into multiple sub-slots by forming a grid structure through the cross connection of at least two transverse ribs and at least two longitudinal ribs.

[0015] Selectively install multiple intelligent monitoring devices in some sub-slots, and pour high-grade concrete into the receiving tank so that the high-grade concrete wraps and fixes all transverse ribs and all longitudinal ribs.

[0016] After the concrete has cured to its design strength, a cover plate is sealed and installed on the top of the receiving groove, so that the difference between the top elevation of the cover plate and the top elevation of the base is the elevation deviation of the steel-concrete column.

[0017] Preferably, when the cover plate is sealed and installed on the top of the receiving groove, at least two transverse welding grooves are provided on the side of the cover plate facing the receiving groove for at least two transverse ribs to be inserted into, and at least two longitudinal welding grooves are provided for at least two longitudinal ribs to be inserted into.

[0018] Preferably, when multiple intelligent monitoring devices are selectively installed in some sub-slots, the multiple intelligent monitoring devices are evenly distributed at intervals along both the horizontal and vertical directions to form a quincunx arrangement within the receiving slot.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects:

[0020] It meets the requirements of heavy load transfer, improves the shear resistance, compressive resistance, torsion resistance and overall stability of the joint, and forms a three-in-one reinforced structure of external reinforcing frame + internal bidirectional ribs + high-grade concrete. Through intelligent monitoring device, it realizes real-time monitoring and early warning of the joint throughout its entire life cycle. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a plan sectional view of the integrated construction node for extending the elevation of heavy-duty steel-concrete column in an embodiment of the present invention.

[0023] Figure 2 This is a planar sectional view of the cover plate in an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram showing the connection of the cover plate, base, and reinforcing frame in an embodiment of the present invention.

[0025] The correspondence between the numbers in the attached diagram is as follows:

[0026] 1- Base; 2- Reinforcing frame; 3- Receiving groove; 31- Sub-groove; 41- Transverse rib; 42- Longitudinal rib; 5- Intelligent monitoring device; 6- Cover plate; 61- Transverse welding groove; 62- Longitudinal welding groove. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Please see Figures 1 to 3 As shown, the present invention provides an integrated construction node for extending the elevation of a heavy-duty steel-concrete column, including a base 1 fixedly installed on the top of the steel-concrete column and a reinforcing frame 2 surrounding and fixed on the outer periphery of the base 1. The area enclosed by the reinforcing frame 2 forms a receiving groove 3. The receiving groove 3 is divided into multiple sub-grooves 31 by at least two transverse ribs 41 and at least two transverse ribs 41 intersecting and connecting to form a grid structure. The construction node also includes multiple intelligent monitoring devices 5 selectively installed in some of the sub-grooves 31, and high-grade concrete poured into the receiving groove 3 to wrap and fix all transverse ribs and all longitudinal ribs. The top of the receiving groove 3 is sealed with a cover plate 6. The difference between the top elevation of the cover plate 6 and the top elevation of the base 1 is the elevation deviation of the steel-concrete column.

[0029] Furthermore, in this embodiment, the cover plate 6 has at least two transverse welding grooves 61 for at least two transverse ribs 41 to be inserted into, and at least two longitudinal welding grooves 62 for at least two longitudinal ribs 42 to be inserted into. It should be noted that each transverse welding groove 61 and each longitudinal welding groove 62 is composed of multiple frame-shaped holes spaced apart. The size of the frame-shaped holes is 30mm x 100mm (width x length). The cover plate 6 is a steel cover plate, and the base 1 is the original column top steel plate of the steel-concrete composite column.

[0030] Furthermore, in this embodiment, multiple intelligent monitoring devices 5 are evenly distributed at intervals along both the horizontal and vertical directions to form a quincunx arrangement (alternating one device per interval) within the receiving groove 3. It should be noted that in this embodiment, the intelligent monitoring devices integrate intelligent stress and deformation monitoring functions. By deploying wireless transmission lines and extending antennas, they connect to a cloud-based data acquisition terminal. After debugging, data can be collected in real time, and each monitoring data point can be stored in the cloud. Simultaneously, monitoring archives can be established to track the structural safety status over a long period, thereby achieving real-time monitoring and early warning throughout the entire lifecycle of the joint.

[0031] This invention also discloses an integrated construction method for extending the elevation of heavy-duty steel-concrete composite columns, used for constructing the aforementioned integrated construction node for extending the elevation of heavy-duty steel-concrete composite columns. The construction method includes the following steps:

[0032] A base is fixedly installed on the top of the steel-concrete column, and a fixed reinforcing frame is provided around the outer perimeter of the base so that the area enclosed by the reinforcing frame forms a receiving groove.

[0033] The receiving slot is divided into multiple sub-slots by forming a grid structure through the cross connection of at least two transverse ribs and at least two longitudinal ribs.

[0034] Selectively install multiple intelligent monitoring devices in some sub-slots, and pour high-grade concrete into the receiving tank so that the high-grade concrete wraps and fixes all transverse ribs and all longitudinal ribs.

[0035] After the concrete has cured to its design strength, a cover plate is sealed and installed on the top of the receiving groove, so that the difference between the top elevation of the cover plate and the top elevation of the base is the elevation deviation of the steel-concrete column.

[0036] Furthermore, when sealing the top of the receiving groove with a cover plate, at least two transverse welding grooves are provided on the side of the cover plate facing the receiving groove for at least two transverse ribs to be inserted into, and at least two longitudinal welding grooves are provided for at least two longitudinal ribs to be inserted into.

[0037] Furthermore, when selectively installing multiple intelligent monitoring devices in some sub-slots, the multiple intelligent monitoring devices are evenly distributed at intervals along both the horizontal and vertical directions to form a quincunx arrangement within the receiving slot.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A construction joint for extending the elevation of a heavy-duty steel-concrete composite column, characterized in that, The system includes a base fixedly installed on top of the steel-concrete column, and a reinforcing frame surrounding and fixed to the outer perimeter of the base. The area enclosed by the reinforcing frame forms a receiving groove. The receiving groove is divided into multiple sub-grooves by a grid structure formed by at least two transverse ribs and at least two longitudinal ribs. The construction node also includes multiple intelligent monitoring devices selectively installed in some of the sub-grooves, and high-grade concrete poured into the receiving groove to wrap and fix all the transverse ribs and all the longitudinal ribs. The top of the receiving groove is sealed with a cover plate, and the difference between the top elevation of the cover plate and the top elevation of the base is the elevation deviation of the steel-concrete column.

2. The integrated construction node for extending the elevation of heavy-duty steel-concrete composite columns as described in claim 1, characterized in that: The cover plate has at least two transverse welding grooves for at least two transverse ribs to be inserted into, and at least two longitudinal welding grooves for at least two longitudinal ribs to be inserted into.

3. The integrated construction node for extending the elevation of heavy-duty steel-concrete composite columns as described in claim 1, characterized in that: The multiple intelligent monitoring devices are evenly distributed at intervals along both the horizontal and vertical directions to form a quincunx arrangement within the receiving groove.

4. A method for integrated construction of extending the elevation of heavy-duty steel-concrete composite columns, characterized in that, For constructing the integrated construction node for extending the elevation of heavy-duty steel-concrete column as described in claim 1, the construction method includes the following steps: A base is fixedly installed on the top of the steel-concrete column, and a fixed reinforcing frame is provided around the outer perimeter of the base so that the area enclosed by the reinforcing frame forms a receiving groove. The receiving slot is divided into multiple sub-slots by forming a grid structure through the cross connection of at least two transverse ribs and at least two longitudinal ribs. Selectively install multiple intelligent monitoring devices in some sub-slots, and pour high-grade concrete into the receiving tank so that the high-grade concrete wraps and fixes all transverse ribs and all longitudinal ribs. After the concrete has cured to its design strength, a cover plate is sealed and installed on the top of the receiving groove, so that the difference between the top elevation of the cover plate and the top elevation of the base is the elevation deviation of the steel-concrete column.

5. The integrated construction method for extending the elevation of heavy-duty steel-concrete composite columns as described in claim 4, characterized in that, When sealing the top of the receiving groove with a cover plate, at least two transverse welding grooves are provided on the side of the cover plate facing the receiving groove for at least two transverse ribs to be inserted into, and at least two longitudinal welding grooves are provided for at least two longitudinal ribs to be inserted into.

6. The integrated construction method for extending the elevation of heavy-duty steel-concrete composite columns as described in claim 4, characterized in that, When multiple intelligent monitoring devices are selectively installed in some sub-slots, the multiple intelligent monitoring devices are evenly distributed at intervals along both the horizontal and vertical directions to form a quincunx arrangement within the receiving slot.

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