Connection joint construction structure of reinforced concrete column and section steel beam

Abstract

The utility model discloses a reinforced concrete column and section steel beam connecting node construction structure, which relates to the field of house building structures and comprises a reinforced concrete column, a steel sleeve, a section steel beam, a connecting steel plate and a high-strength bolt. A steel sleeve is arranged at the joint of the reinforced concrete column and the section steel beam, the section steel beam is connected with a connecting steel plate through a high-strength bolt, and the connecting steel plate is welded to the steel sleeve to form a joint structure of the reinforced concrete column and the section steel beam. The installation method comprises the steps of manufacturing the steel sleeve and the section steel beam, casting the reinforced concrete column in situ, installing the steel sleeve, pouring concrete in the steel sleeve and installing the section steel beam. According to the utility model, the high bearing strength of concrete and the excellent toughness of steel are combined, so that the load can be effectively borne, and the anti-seismic property is good; the device is reasonable in design, good in integrity, simple in structure, convenient to construct, controllable in quality, safe, reliable and reasonable in construction cost, and has good popularization and use value.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of house building structure, concretely is a reinforced concrete column and section steel beam connecting joint structure. BACKGROUND

[0002] The structure composed of cast-in-situ concrete column and section steel beam is a kind of steel-concrete composite structure, wherein concrete column and section steel beam work together to form a kind of load-bearing structure system This structure system combines the high load-bearing strength of concrete and the excellent toughness of steel, can effectively bear load and has good anti-seismic performance In construction, this structure system has the advantages of simple construction and reasonable engineering cost How to ensure the reliable connection of steel structure component and concrete column main structure is a key problem of steel-concrete composite structure; Reinforced concrete structure is widely used in various buildings due to its good compression resistance and economy; And section steel beam shows unique advantages in large-span, heavy-load structure due to its high strength and good toughness. Early reinforced concrete column and section steel beam connection mostly adopts simple welding or bolt connection mode. However, these connection modes have many problems. Pure welding connection has higher technical requirements for construction personnel, and welding quality is greatly affected by environmental factors, welding defects are easy to occur, which reduces the reliability of connecting joint, and in the long-term use process, structure safety hazards may be caused due to fatigue and other problems. Simple bolt connection has poor integrity at the connection position, and is easy to loosen and slip when bearing large load, so it is difficult to ensure the stability and safety of the structure.

[0003] With the development of construction industry and the continuous improvement of structural performance requirements, traditional connection mode has been unable to meet the increasingly complex engineering demand. Some improved connection technologies gradually appear, such as using preformed parts to enhance the integrity of the connecting joint, but these technologies still have certain limitations, the construction process is more complicated, and the cost is higher. In the current construction market, for high-rise buildings, large-span buildings and industrial plants and other projects, the requirements for reinforced concrete column and section steel beam connecting joint are more stringent. Not only does the connecting joint need to have good mechanical properties to effectively transfer load, but also it needs to be convenient to construct, quality controllable and economical and reasonable. Therefore, it is urgent to develop a more advanced and reliable reinforced concrete column and section steel beam connecting joint structure and its installation method. INVENTION CONTENTS

[0004] The utility model aims at providing a reinforced concrete column and section steel beam connecting joint structure, which sets a steel sleeve at the intersection of the reinforced concrete column and the section steel beam, connects the section steel beam with the connecting steel plate through high-strength bolts, and welds the connecting steel plate with the steel sleeve to form the node structure of the reinforced concrete column and the section steel beam to solve the above problems.

[0005] In order to realize the above object, the utility model provides the following technical scheme:

[0006] A reinforced concrete column and a profile steel beam connecting joint structure, comprising a reinforced concrete column, a steel sleeve, a profile steel beam, a connecting steel plate and high-strength bolts, characterized in that a steel sleeve is arranged at the joint of the reinforced concrete column and the profile steel beam, the profile steel beam is connected with the connecting steel plate through high-strength bolts, and the connecting steel plate is welded with the steel sleeve to form the joint structure of the reinforced concrete column and the profile steel beam.

[0007] The steel sleeve is arranged at the joint of the reinforced concrete column and the profile steel beam, and the outer surface of the steel sleeve is flush with the reinforced concrete column.

[0008] The steel sleeve is welded by steel plates and is internally provided with stiffened steel plate ribs, which are horizontally welded to the inner wall of the steel sleeve.

[0009] The profile steel beam is an I-shaped beam and is composed of flange plates and webs.

[0010] The high-strength bolts are used to connect the profile steel beam with the steel sleeve on the reinforced concrete column.

[0011] The height of the steel sleeve is determined by the height of the beam to meet the stress performance of the reinforced concrete column.

[0012] A method for installing a reinforced concrete column and a profile steel beam connecting joint structure, specifically comprising the following steps:

[0013] S1: manufacturing a steel sleeve and a profile steel beam;

[0014] S2: casting a reinforced concrete column;

[0015] S3: installing a steel sleeve;

[0016] S4: pouring concrete into the steel sleeve;

[0017] S5: installing a profile steel beam.

[0018] The step S2 of casting-in-situ reinforced concrete column is specifically: making binding reinforced concrete column steel bars, supporting column formwork, and pouring column concrete to the lower part of the design position of the steel sleeve.

[0019] The step S3 of installing the steel sleeve is specifically: after the reinforced concrete column concrete reaches a certain strength, the formwork is removed, and measures are taken to maintain the concrete, and the steel sleeve hoisting procedure is performed; when hoisting, the reinforced concrete column longitudinal reinforcement passes through the corresponding holes reserved on the stiffened steel plate ribs in the steel sleeve, and the steel sleeve elevation and perpendicularity are corrected, and measures are taken to temporarily fix the steel sleeve on the reinforced concrete column, and the outer wall of the steel sleeve is flush with the side of the reinforced concrete column concrete.

[0020] The step S5 of installing the steel beam is specifically: after the reinforced concrete column reaches the installation strength, the steel beam installation is started, the steel beam specification size is reviewed, the reinforced concrete column spacing is measured, and the steel sleeve on the reinforced concrete column releases the position line of the steel beam to be installed; the connecting steel plate is installed, the connecting steel plate is connected with the web of the steel beam through high-strength bolts, the steel beam is hoisted, the steel beam is controlled in direction by using the wind rope, and after the steel beam is positioned, the connecting steel plate on the steel beam is welded on the side wall of the steel sleeve.

[0021] The reinforced concrete column provides the main vertical bearing capacity, and utilizes the high bearing strength of the concrete to bear the load transmitted from the upper structure. The steel sleeve arranged at the intersection of the column and the steel beam is tightly combined with the concrete in the column through the anchor bolts on the inner wall, increases the anchoring force, and the stiffened steel plate ribs and the reinforcing angle iron in the interior enhance the strength and stability of the steel sleeve. The column longitudinal reinforcement passes through the holes reserved on the stiffened steel plate ribs in the steel sleeve, ensures the continuity of the steel bars in the column, and enables the column stress to be effectively transmitted. The steel beam adopts the I-shaped structure, and the flange plate and the web work cooperatively, and has good bending and shearing performance. The steel beam is connected with the connecting steel plate through high-strength bolts, the connecting steel plate is welded with the steel sleeve, and a reliable connecting joint is formed. When the structure is subjected to the load, the load is first transmitted to the connecting steel plate through the steel beam, and then transmitted to the steel sleeve through the welding of the connecting steel plate, the steel sleeve and the concrete in the column jointly act, and the load is further transmitted to the reinforced concrete column, so that the stress transmission of the whole structure is realized. In the concrete pouring process, the exhaust holes on the outer wall of the steel sleeve exhaust air, ensure the compactness of the concrete in the steel sleeve, and improve the overall performance of the joint. This connecting mode combines the advantages of concrete and steel, enables the structure to effectively bear the load and has good seismic performance.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The steel reinforced concrete column and the steel beam are connected through the steel sleeve, the steel sleeve and the steel reinforced concrete column are tightly combined, the longitudinal reinforcement of the column passes through the reserved hole of the stiffened steel plate rib in the steel sleeve, the continuity of the steel reinforcement in the column is ensured, the anchor bolts are arranged on the inner wall of the steel sleeve, the anchoring force with the concrete is further enhanced, the steel sleeve and the column form an integral whole, the steel beam is connected with the connecting steel plate through high-strength bolts, the connecting steel plate is welded with the steel sleeve, the connecting mode ensures the reliable connection between the steel beam and the steel reinforced concrete column, the integrity of the whole structure is improved, and the stability and reliability of the structure are improved.

[0024] The steel sleeve and the steel reinforced concrete column are tightly combined, the longitudinal reinforcement of the column passes through the reserved hole of the stiffened steel plate rib in the steel sleeve, the continuity of the steel reinforcement in the column is ensured, the anchor bolts are arranged on the inner wall of the steel sleeve, the anchoring force with the concrete is further enhanced, the steel sleeve and the column form an integral whole; the steel beam is connected with the connecting steel plate through high-strength bolts, the connecting steel plate is welded with the steel sleeve, the connecting mode ensures the reliable connection between the steel beam and the steel reinforced concrete column, the integrity of the whole structure is improved, and the stability and reliability of the structure are improved.

[0025] In the construction process, the steel sleeve and the steel beam are entrusted to a professional factory to be manufactured according to the deepening design, the quality is easy to control and the accuracy can be ensured, after the manufacturing is completed, the steel sleeve and the steel beam are transported to the site and can be used, the workload and time of on-site processing are reduced, in the installation process, the connection mode of each component is clear and the operation is relatively simple, such as high-strength bolt connection which is convenient for on-site installation and adjustment, compared with some complex welding or riveting processes, the construction period can be effectively shortened and the construction efficiency can be improved.

[0026] Since the steel sleeve and the steel beam are manufactured in the factory, the quality of the components can be effectively ensured according to strict quality standards and process flow. In the on-site installation, each installation step has clear operation requirements and quality inspection standards, such as the elevation, perpendicularity correction of the steel sleeve and the fastening torque of the high-strength bolt, which can be strictly controlled and inspected, the quality of the connecting joint is better ensured, and the safety and reliability of the whole structure are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a side view of the steel sleeve of the connecting joint structure of the steel reinforced concrete column and the steel beam.

[0028] Figure 2 It is a longitudinal sectional view of the steel sleeve of the connecting joint structure of the steel reinforced concrete column and the steel beam.

[0029] Figure 3 It is a transverse sectional view of the steel sleeve of the connecting joint structure of the steel reinforced concrete column and the steel beam.

[0030] Figure 4The utility model discares a reinforced concrete column and section steel beam connecting node structure beam column node structure plan view;

[0031] Figure 5 The utility model discares a reinforced concrete column and section steel beam connecting node structure beam column node structure side view;

[0032] Figure 6 The utility model discares a reinforced concrete column and section steel beam connecting node structure installation method flow chart;

[0033] In the drawing: 1, steel sleeve;11, steel sleeve outer steel plate;12, exhaust hole;13, stiffened steel plate rib;14, anchor bolt;15, reinforcing angle iron;2, section steel beam;21, section steel beam web;22, section steel beam flange plate;3, high-strength bolt;4, reinforced concrete column;5, connecting steel plate. DETAILED DESCRIPTION

[0034] The technical scheme in the embodiment of the utility model will be described below in conjunction with the drawings in the embodiment of the utility model

[0035] Reference Figures 1-5 A reinforced concrete column and section steel beam connecting node structure structure, including reinforced concrete column 4, steel sleeve 1, section steel beam 2, connecting steel plate 5, high-strength bolt 3, its characterized in that, set up steel sleeve 1 at the intersection of the reinforced concrete column 4 and section steel beam 2, the section steel beam 2 is connected with connecting steel plate 5 through high-strength bolt 3, the connecting steel plate 5 is welded with steel sleeve 1, forms the node structure of reinforced concrete column 4 and section steel beam 2.

[0036] The reinforced concrete column 4 is provided with steel sleeve 1 at the intersection of floor and section steel beam 2, the outer surface of steel sleeve 1 is flush with reinforced concrete column 4;The longitudinal reinforcement of reinforced concrete column 4 passes through steel sleeve 1, and no column hoop is arranged in the range of steel sleeve 1.

[0037] The steel sleeve 1 is welded by steel plate, and the stiffened steel plate rib 13 is arranged in the steel sleeve 1, the stiffened steel plate rib 13 is horizontally welded to the inner wall side of the steel sleeve 1, the stiffened steel plate rib 13 is provided with a plurality of holes at four corners, and a hole is also reserved at the position where the longitudinal reinforcement of the reinforced concrete column passes through, so that the longitudinal reinforcement of the reinforced concrete column can pass through, the reinforcing angle iron 15 is welded to the middle of the stiffened steel plate rib 13, the anchor bolt 14 is arranged on the inner wall of the steel sleeve 1, the anchoring force of the steel sleeve and concrete is increased, and a plurality of exhaust holes 12 are arranged on the outer wall around the steel sleeve 1 and are used for exhausting during pouring concrete.

[0038] The section steel beam 2 is an I-shaped beam, which is composed of flange plates 22 and webs 21, the two ends of the section steel beam 2 are provided with openings, the connecting steel plate 5 is welded to the side wall of the steel sleeve 1, and a hole is formed in the connecting steel plate 5 and corresponds to the hole of the web 21 of the section steel beam.

[0039] The high-strength bolt 3 is used for connecting the steel tube 1 on the steel reinforced concrete column 4 with the steel beam 2, the high-strength bolt 3 passes through the connecting steel plate 5 and the hole on the web plate 21 of the steel beam, and is fixed by screwing the nut.

[0040] The height of the steel tube 1 is determined by the height of the beam, and the stress performance of the steel reinforced concrete column is met.

[0041] Referring to Figure 6 A method for installing the structure of the connecting joint of the steel reinforced concrete column and the steel beam, specifically comprising the following steps:

[0042] S1: manufacturing the steel tube and the steel beam;

[0043] S2: casting the steel reinforced concrete column;

[0044] S3: installing the steel tube;

[0045] S4: pouring the concrete in the steel tube;

[0046] S5: installing the steel beam.

[0047] The step S2 of casting the steel reinforced concrete column specifically comprises: manufacturing the steel reinforcement of the steel reinforced concrete column, supporting the column formwork, and pouring the column concrete to the lower part of the design position of the steel tube.

[0048] The step S3 of installing the steel tube specifically comprises: after the concrete strength of the steel reinforced concrete column reaches a certain strength, the formwork is removed, measures are taken to maintain the concrete, the steel tube is hoisted, the longitudinal reinforcement of the steel reinforced concrete column passes through the corresponding holes reserved on the stiffened steel plate ribs in the steel tube, the elevation and perpendicularity of the steel tube are corrected, temporary fixation is performed on the steel reinforced concrete column, and the outer wall of the steel tube is flush with the side of the concrete of the steel reinforced concrete column.

[0049] The step S5 of installing the steel beam specifically comprises: after the steel reinforced concrete column reaches the installation strength, the steel beam installation is started, the specifications and sizes of the steel beam are reviewed, the column spacing of the steel reinforced concrete column is measured, and the position line of the steel beam to be installed is released on the steel tube of the steel reinforced concrete column; the connecting steel plate is installed, the connecting steel plate is connected with the web plate of the steel beam through the high-strength bolt, the steel beam is hoisted, the direction of the steel beam is controlled by the wind rope, after the steel beam is positioned, the connecting steel plate on the steel beam is welded on the side wall of the steel tube.

[0050] Referring to Figures 1-6 The specific implementation steps are:

[0051] Step 1: making steel sleeve 1 and steel beam 2. According to the structural design drawings, the cross-sectional size and stress condition of the structural beam, plate and column, the important component of steel sleeve 1 and steel beam 2 of reinforced concrete column 4 are further designed by entrusting a professional factory, and are produced according to the engineering progress, inspected and qualified, transported into the construction site in batches, and stacked for standby.

[0052] Step 2: cast-in-place reinforced concrete column 4. According to the construction drawings, the steel reinforcement of reinforced concrete column 4 is made, the column 4 formwork is erected, and the column 4 concrete is poured. The first time the reinforced concrete column 4 concrete is poured to the lower part of the design position of the steel sleeve 1.

[0053] Step 3: installing steel sleeve 1. After the reinforced concrete column 4 concrete reaches a certain strength, the formwork is removed, and measures are taken to maintain the concrete. The steel sleeve 1 hoisting process is started, and when hoisting, the longitudinal reinforcement of the reinforced concrete column 4 passes through the corresponding holes reserved on the stiffened steel plate rib 13 in the steel sleeve 1. The elevation and perpendicularity of the steel sleeve 1 are corrected, and temporary fixing measures are taken on the reinforced concrete column 4. The outer wall of the steel sleeve 1 is flush with the side of the reinforced concrete column 4 concrete.

[0054] Step 4: pouring concrete in steel sleeve 1. Check that the elevation and perpendicularity of the steel sleeve 1 meet the requirements and that the steel sleeve 1 fixing measures meet the requirements of the construction scheme, and pour the concrete in the steel sleeve 1 section of the reinforced concrete column 4. When pouring, use a small-diameter insertion-type vibrating rod to fully vibrate, and the exhaust hole 12 discharges the concrete slurry to achieve the concrete density effect.

[0055] Step 5: installing steel beam 2. After the reinforced concrete column 4 reaches the installation strength, the steel beam 2 installation is started. The size of the steel beam 2 is reviewed, the column spacing of the reinforced concrete column 4 is measured, and the position line of the steel beam 2 to be installed is released on the steel sleeve 1 on the reinforced concrete column 4. Install the connecting steel plate 5, connect the connecting steel plate 5 with the web 21 of the steel beam through high-strength bolts 3. Use hoisting equipment to lift the steel beam 2, and control the direction of the steel beam 2 with a wind rope. After the steel beam 2 is in place, the connecting steel plate 5 on the steel beam 2 is welded to the side wall of the steel sleeve 1.

[0056] The above is only a preferred example of the present application, and is not intended to limit the present application. Any slight modification, equivalent replacement and improvement made according to the technical essence of the present application to the above embodiments shall be included in the protection scope of the technical scheme of the present application.

Claims

1. A reinforced concrete column and steel beam connection joint structure comprising a reinforced concrete column (4), a steel sleeve (1), a steel beam (2), a connecting steel plate (5), and a high-strength bolt (3), characterized in that, A steel sleeve (1) is installed at the junction of the reinforced concrete column (4) and the steel beam (2). The steel beam (2) is connected to the connecting steel plate (5) by high-strength bolts (3). The connecting steel plate (5) is welded to the steel sleeve (1) to form a node structure between the reinforced concrete column (4) and the steel beam (2).

2. The reinforced concrete column to steel beam connection joint construction structure according to claim 1, characterized in that, The reinforced concrete column (4) is provided with a steel sleeve (1) at the junction of the floor and the steel beam (2). The outer surface of the steel sleeve (1) is flush with the reinforced concrete column (4). The longitudinal reinforcement of the reinforced concrete column (4) passes through the steel sleeve (1).

3. The reinforced concrete column to steel beam connection joint construction structure according to claim 1, characterized in that, The steel sleeve (1) is made of welded steel plates and has internal stiffening steel plate ribs (13). The stiffening steel plate ribs (13) are horizontally welded to the inner wall of the steel sleeve (1). The stiffening steel plate ribs (13) have pre-reserved holes at the four corners and at the location where the longitudinal reinforcement of the reinforced concrete column passes through, so as to facilitate the passage of the longitudinal reinforcement of the reinforced concrete column. The stiffening steel plate ribs (13) are welded with reinforcing angle iron (15) in the middle. Anchor bolts (14) are set on the inner wall of the steel sleeve (1) to increase the anchoring force between the steel sleeve and the concrete. Several vent holes (12) are set on the outer wall of the steel sleeve (1) for venting during concrete pouring.

4. The reinforced concrete column to steel beam connection joint construction structure according to claim 1, characterized by, The steel beam (2) is I-shaped and consists of a flange plate (22) and a web plate (21). The web plates (21) at both ends of the steel beam (2) are provided with openings. The connecting steel plate (5) is welded to the side wall of the steel sleeve (1) and has openings on the connecting steel plate (5) corresponding to the holes in the web plates (21) of the steel beam.

5. The reinforced concrete column to steel beam connection joint construction structure according to claim 1, characterized by, The high-strength bolt (3) is used to connect the steel beam (2) to the steel sleeve (1) on the reinforced concrete column (4). The high-strength bolt (3) passes through the hole on the connecting steel plate (5) and the web plate (21) of the steel beam and is tightened with a nut.

6. The reinforced concrete column to steel beam connection joint construction structure according to claim 2, characterized by, The height of the steel sleeve (1) is determined by the beam height, satisfying the stress performance of the reinforced concrete column.

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