A connecting structure for supporting a square steel pipe column and a truss steel beam

Abstract

The utility model discloses a kind of connecting structure of supporting square steel pipe column and truss steel beam, including fixed mechanism I, fixed mechanism II, supporting mechanism;Fixed mechanism I below is fixedly connected with pipe column top, and fixedly connected with fixed mechanism II above, and truss steel beam end is fixedly connected with fixed mechanism II;Supporting mechanism is fixedly connected with fixed mechanism I bottom outside pipe column;Fixed plate I bottom in fixed mechanism I is fixedly connected with connecting column, and connecting column is inserted in pipe column top, and bottom chord of truss steel beam is attached on fixed plate I upper surface;Sleeve is fixedly connected with fixed plate I outside pipe column, and several groups of bolt are passed through the through-hole of sleeve and pipe column and are screw-connected with connecting column.The utility model realizes the quick fixed connection of truss steel beam and square steel pipe column without affecting structural stability and durability.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure technology, and specifically relates to a connection structure for supporting square steel pipe columns and truss steel beams. Background Technology

[0002] Compared with traditional steel beams such as I-beams, channel beams, and composite beams, truss steel beams have advantages such as light weight, simple construction, good durability, and good safety. Therefore, truss steel beams are widely used in the construction of steel structures. However, the structure of truss steel beams is different from that of traditional steel beams, which means that the connection nodes and connection methods used for connecting traditional steel beams to columns cannot be used for truss steel beams.

[0003] A search revealed a rigid connection node device for steel pipe columns and steel beams, with prior art announcement number CN222120509U. This device is fixedly connected to a connection node body with a steel beam connecting steel plate and a first connecting steel plate and a second connecting steel plate welded to its top and bottom, respectively. A reinforcing plate is vertically welded to the side end face of the connection node body, and its two short end faces abut against the surfaces of the first and second connecting steel plates and are welded together to form an I-beam. The steel beam connecting steel plate is welded and fixed to the I-beam, and the steel beam is connected to the steel beam connecting steel plate via bolts.

[0004] A search revealed a prefabricated steel structure node with the existing technology announcement number CN222595131U. This device uses bolts to fix the steel frame to the I-beam, while the bottom connecting plate is fixed to the I-beam column with bolts. During the use of the bolts, the bolts are electrically energized to achieve bolted-welded connections between adjacent components. This device welds multiple components together, forming a large number of welds and abrupt changes in cross-section. These areas are prone to severe stress concentration under dynamic and repeated loads, becoming the initiation points of fatigue cracks and affecting the durability and seismic performance of the node.

[0005] Therefore, a connection structure is needed to support the square steel tube column and the truss steel beam, so as to achieve a quick and fixed connection between the truss steel beam and the square steel tube column without affecting the structural stability and durability. Summary of the Invention

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a connection structure for supporting square steel pipe columns and truss steel beams. This utility model, through the cooperation of fixing mechanism I and fixing mechanism II, can achieve precise alignment of the through holes in the device while ensuring the stability of the structure after installation.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A connection structure for supporting a square steel tube column and a truss steel beam includes a fixing mechanism I, a fixing mechanism II, and a support mechanism; the fixing mechanism I is fixedly connected to the top of the tube column at the bottom and to the fixing mechanism II at the top, and the end of the truss steel beam is fixedly connected to the fixing mechanism II; the support mechanism is located outside the tube column and is fixedly connected to the bottom of the fixing mechanism I.

[0009] The fixing mechanism I includes a fixing plate I, a connecting column, a sleeve, and a support plate; the bottom of the fixing plate I is fixedly connected to the connecting column, and the connecting column is inserted into the top of the pipe column, and the lower chord of the truss steel beam is in contact with the upper surface of the fixing plate I; the sleeve is located outside the pipe column and is fixedly connected to the fixing plate I, and several sets of bolts pass through the through holes on the sleeve and the pipe column and are threaded to the connecting column; several support plates are provided, one side of the support plate is fixedly connected to the sleeve, and the top is fixedly connected to the fixing plate I.

[0010] The fixing mechanism II includes a fixing plate II, a slot, a fixing plate III, a connecting plate, and a limiting block. Two sets of fixing plates II are provided, each with a slot. The two sets of fixing plates II are symmetrically attached to both sides of the truss steel beam, and several bolts and nuts are used to fix the fixing plates II above the fixing plate I. The fixing plate III is fixedly connected to the top of the two sets of fixing plates II, and its bottom surface is attached to the upper chord of the truss steel beam. The limiting block is inserted into the slots on the two sets of fixing plates III, and one side and one inclined surface of the limiting block are respectively attached to the outermost vertical web member and inclined web member of the truss steel beam. Two sets of connecting plates are provided, respectively located on both sides of the two sets of fixing plates II, and several bolts pass through through holes in the connecting plate and are threadedly connected to the fixing plates II and the limiting block.

[0011] The support mechanism includes a connecting seat, a connecting rod, a sliding seat, and a support seat; the connecting seat is located on the outside of the column and is fixedly connected to the bottom of the sleeve, and the sliding seat is slidably connected to the connecting seat; one end of the connecting rod is fixedly connected to the sliding seat, and the other end is fixedly connected to the support seat, and the support seat is in contact with the lower chord of the truss steel beam.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1) The fixing mechanism I is inserted into the top of the pipe column to form a stable high-altitude operating platform. After the truss steel beam is hoisted, its lower chord falls directly on the fixing plate I. The weight is borne by the contact surface between the fixing mechanism I and the pipe column, avoiding the pressure and misalignment of the hole wall caused by the weight acting directly on the bolt during the hoisting process.

[0014] 2) Fixing mechanism II provides lateral constraint and positioning for the truss steel beam through slots and limiting blocks, decomposing the gravity and external forces of the truss steel beam onto the limiting blocks and connecting plates, rather than relying entirely on bolt shear resistance. This significantly reduces the risk of stress deformation and hole position deviation in bolt holes, and significantly enhances the torsional and lateral displacement resistance of the truss steel beam. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of a connection structure for supporting square steel pipe columns and truss steel beams according to this utility model;

[0016] Appendix Figure 2 It is attached Figure 1 Schematic diagram of the connection structure between the central fixing mechanism I and the tubular column;

[0017] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the connection structure between fixed mechanism I and fixed mechanism II;

[0018] Appendix Figure 4 It is attached Figure 1 Schematic diagram of the connection structure between the central fixed mechanism II and the truss steel beam;

[0019] Appendix Figure 5 It is attached Figure 1 Cross-sectional structural diagrams of fixing mechanism I and fixing mechanism II;

[0020] Appendix Figure 6 It is attached Figure 1 A schematic diagram of the disassembled structure of the central fixed mechanism II;

[0021] In the diagram: 1. Fixing mechanism I; 101. Fixing plate I; 1011. Connecting column; 102. Sleeve; 1021. Support plate; 2. Fixing mechanism II; 201. Fixing plate II; 2011. Slot; 202. Fixing plate III; 203. Connecting plate; 204. Limiting block; 3. Supporting mechanism; 301. Connecting seat; 302. Connecting rod; 303. Sliding seat; 304. Support seat; 4. Truss steel beam; 5. Pipe column. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figures 1-6 The technical solution of this utility model will be further described in detail below.

[0023] A connection structure for supporting a square steel pipe column and a truss steel beam includes a fixing mechanism I1, a fixing mechanism II2, and a supporting mechanism 3; the fixing mechanism I1 is fixedly connected to the top of the pipe column 5 at the bottom and to the fixing mechanism II2 at the top, and the end of the truss steel beam 4 is fixedly connected to the fixing mechanism II2; the supporting mechanism 3 is located outside the pipe column 5 and is fixedly connected to the bottom of the fixing mechanism I1.

[0024] The fixing mechanism I1 includes a fixing plate I101, a connecting column 1011, a sleeve 102, and a support plate 1021. The bottom of the fixing plate I101 is fixedly connected to the connecting column 1011, and the connecting column 1011 is inserted into the top of the column 5. The lower chord of the truss steel beam 4 is in contact with the upper surface of the fixing plate I101. The sleeve 102 is located outside the column 5 and is fixedly connected to the fixing plate I101. Several sets of bolts pass through the through holes on the sleeve 102 and the column 5 and are threadedly connected to the connecting column 1011. Several support plates 1021 are provided. One side of the support plate 1021 is fixedly connected to the sleeve 102, and the top is fixedly connected to the fixing plate I101.

[0025] The fixing mechanism II2 includes a fixing plate II201, a slot 2011, a fixing plate III202, a connecting plate 203, and a limiting block 204. Two sets of fixing plates II201 are provided, each with a slot 2011. The two sets of fixing plates II201 are symmetrically attached to both sides of the truss steel beam 4, and several bolts and nuts are used to fix the fixing plates II201 above the fixing plate I101. The fixing plate III202 is fixedly connected to the top of the two sets of fixing plates II201. The bottom surface of the fixing plate Ⅲ202 is in contact with the upper chord of the truss steel beam 4; the limiting block 204 is inserted into the slot 2011 on the two sets of fixing plates Ⅲ202, and one side and the inclined surface of the limiting block 204 are in contact with the outermost vertical web member and the inclined web member of the truss steel beam 4, respectively; the connecting plate 203 is provided in two sets, respectively located on both sides of the two sets of fixing plates Ⅱ201, and several bolts pass through the through holes on the connecting plate 203 and are threadedly connected to the fixing plate Ⅱ201 and the limiting block 204.

[0026] The support mechanism 3 includes a connecting seat 301, a connecting rod 302, a sliding seat 303, and a support seat 304. The connecting seat 301 is located outside the column 5 and is fixedly connected to the bottom of the sleeve 102, and the sliding seat 303 is slidably connected to the connecting seat 301. One end of the connecting rod 302 is fixedly connected to the sliding seat 303, and the other end is fixedly connected to the support seat 304, and the support seat 304 is in contact with the lower chord of the truss steel beam 4.

[0027] A connection structure for supporting square steel tube columns and truss steel beams, the working process of which is as follows:

[0028] After the pipe column 5 is erected, the fixing mechanism I1 and the support mechanism 3 are transported to the top of the pipe column 5 using hoisting equipment. Then, the fixing mechanism I1 is lowered until the top of the pipe column 5 is inserted between the sleeve 102, the connecting seat 301, and the connecting column 1011. At this time, the contact surface between the top of the pipe column 5 and the bottom of the fixing plate I101 is the vertical force bearing surface. Then, several bolts are threaded through the through holes on the sleeve 102 and the pipe column 5 and connected to the connecting column 1011. This is to limit the pipe column 5 and prevent the pipe column 5 from detaching from the fixing mechanism I1.

[0029] The truss beam 4 is transported to the top of the fixed plate I101 using hoisting equipment. Then, the truss beam 4 is lowered until its lower chord is in contact with the fixed plate I101 and the support 304. Subsequently, two sets of fixed plates II201 are fixedly connected to the fixed plate I101 using bolts and nuts, and a fixed plate III202 is fixedly connected to the top of the two sets of fixed plates II201, thereby fixing the truss beam 4 above the fixed mechanism I1. Then, the limiting block 204 is controlled to pass through the slot 2011 on one set of fixed plates II201. After the limiting block 204 passes between the outermost vertical web members and diagonal web members of the truss beam 4 and through the slot 2011 on the other set of fixed plates II201, the two sets of connecting plates 203 are threadedly connected to the two sets of fixed plates II201 and the two ends of the limiting block 204 using several bolts, thereby fixing and limiting the truss beam 4 and preventing it from detaching from the fixed mechanism I1 and the fixed mechanism II2.

[0030] In the description of this utility model, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting. Movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the application effect needs to be selected according to the application of the solution. Washers are provided in the connection process of the above bolts, fixing bolts, studs and nuts. At the same time, the connection of the above bolts, fixing bolts, studs and nuts is fixed by thread locking.

[0031] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A connection structure for supporting a square steel pipe column and a truss steel beam, comprising a fixing mechanism I, a fixing mechanism II, and a supporting mechanism; the fixing mechanism I is fixedly connected to the top of the pipe column at the bottom and to the fixing mechanism II at the top, and the end of the truss steel beam is fixedly connected to the fixing mechanism II; the supporting mechanism is located outside the pipe column and is fixedly connected to the bottom of the fixing mechanism I; Its features The fixing mechanism I includes a fixing plate I, a connecting column, a sleeve, and a support plate; the bottom of the fixing plate I is fixedly connected to the connecting column, and the connecting column is inserted into the top of the pipe column, and the lower chord of the truss steel beam is in contact with the upper surface of the fixing plate I; the sleeve is located outside the pipe column and is fixedly connected to the fixing plate I, and several sets of bolts pass through the through holes on the sleeve and the pipe column and are threaded to the connecting column; several support plates are provided, one side of the support plate is fixedly connected to the sleeve, and the top is fixedly connected to the fixing plate I; The fixing mechanism II includes a fixing plate II, a slot, a fixing plate III, a connecting plate, and a limiting block. Two sets of fixing plates II are provided, each with a slot. The two sets of fixing plates II are symmetrically attached to both sides of the truss steel beam, and several bolts and nuts are used to fix the fixing plates II above the fixing plate I. The fixing plate III is fixedly connected to the top of the two sets of fixing plates II, and its bottom surface is attached to the upper chord of the truss steel beam. The limiting block is inserted into the slots on the two sets of fixing plates III, and one side and one inclined surface of the limiting block are respectively attached to the outermost vertical web member and inclined web member of the truss steel beam. Two sets of connecting plates are provided, respectively located on both sides of the two sets of fixing plates II, and several bolts pass through through holes in the connecting plate and are threadedly connected to the fixing plates II and the limiting block.

2. The connection structure between the supporting square steel tube column and the truss steel beam according to claim 1, characterized in that... The support mechanism includes a connecting seat, a connecting rod, a sliding seat, and a support seat; the connecting seat is located on the outside of the column and is fixedly connected to the bottom of the sleeve, and the sliding seat is slidably connected to the connecting seat; one end of the connecting rod is fixedly connected to the sliding seat, and the other end is fixedly connected to the support seat, and the support seat is in contact with the lower chord of the truss steel beam.

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