CN106436926A - Square steel tube column-H-shaped steel beam end-plate connecting node - Google Patents

Abstract

The invention discloses an end plate connection node of a square steel pipe column-H-shaped steel beam, comprising a square steel pipe column, an H-shaped steel beam, a node end plate, a beam end plate, and a side steel plate; the beam end plate and the end of the H-shaped steel beam Weld seam connection, there are bolt holes on the beam end plate; the steel plates on both sides are welded to the wall plates on both sides of the square steel pipe column, the node end plate is connected to the side steel plate by weld seam, and the node end plate is opened with holes corresponding to the beam end plate screw holes; square steel pipe columns and H-shaped steel beams are connected into a whole by means of node end plates and beam end plates through friction-type high-strength bolts. The invention has a simple structure, solves the construction problem caused by welding the inner partition in the square steel pipe, and does not affect the pouring of concrete in the steel pipe; it is easy to realize the anti-seismic design principle of "strong nodes, weak components", and has better anti-seismic Performance; with high construction efficiency, it is suitable for the connection node construction of square steel pipe column-steel beam in the steel structure of multi-storey or high-rise buildings.

Description

An end-plate connection node of a square steel pipe column-H-shaped steel beam

technical field

The invention relates to a connection node between a steel structure beam and a column in the construction field, in particular to a connection node suitable for a square steel pipe column-H-shaped steel beam in a multi-storey or high-rise building steel structure.

Background technique

At present, there are three main ways to connect square steel pipe columns and steel beams: inner diaphragm type, diaphragm through type and outer diaphragm type. For inner diaphragm joints, the last weld of the inner diaphragm is welded in a closed column, which needs to be completed by electroslag welding. The construction is complicated and the cost is high. The size of the hole is affected by the size of the section, and the pouring of concrete in the steel pipe brings difficulties. The clapboard through joint needs to disconnect the steel pipe column at the joint, the structure is complex, the welding workload is large, and there are concrete pouring problems like the inner clapboard joint. The construction of the outer diaphragm joint is simple and is not limited by the cross-sectional size of the steel pipe, but the amount of steel used is relatively large, and the outer diaphragm makes the corner of the joint protrude, which affects the appearance of the building.

Contents of the invention

In view of the above existing problems, the present invention aims to provide a square steel pipe column-H-shaped steel beam connection node with a simple structure, which can not only meet the requirements of bearing capacity and stiffness, but also facilitate the construction of the node.

The purpose of the present invention is achieved through the following technical solutions: a square steel pipe column-H-shaped steel beam end plate connection node, including square steel pipe column, H-shaped steel beam, node end plate, beam end plate, side steel plate, beam The end plate is welded to the end of the H-shaped steel beam. There are bolt holes on the end plate of the beam. The steel plates on both sides are welded to the side wall plates of the square steel pipe column. There are screw holes corresponding to the beam end plates, and square steel pipe columns and H-shaped steel beams are connected into a whole by means of joint end plates and beam end plates through friction-type high-strength bolts.

The width of the side steel plate of the present invention is associated with the installation of the H-shaped steel beam. When the H-shaped steel beam is installed on one side of the square steel pipe column, the side steel plate is placed in the middle of the width of the side wall plate of the square steel pipe column; when the H-shaped steel beam is installed on both sides of the square steel pipe column The beam, the side steel plate and the side wall plate of the square steel pipe column overlap the entire width.

The connection between the H-shaped steel beam and the square steel pipe column of the present invention either adopts a flat end plate node or an outrigger end plate node. When the outrigger end plate node is used, the outrigger part of the beam end plate is welded with stiffeners.

The beneficial effects of the present invention are as follows:

1. In the present invention, the connection between the square steel pipe column and the H-shaped steel beam adopts the steel pipe side wall plate welded steel plate, and the end plate is connected by high-strength bolts, which avoids the setting of a diaphragm. On the one hand, the production of the steel member is more convenient, on the other hand , avoiding the setting of stiffeners inside the square steel pipe, while not affecting the pouring of concrete in the steel pipe.

2. The invention adopts the welding of side steel plates and square steel pipe columns, which increases the thickness of the joint domain and has higher joint domain stiffness, while the H-shaped steel beam is connected with the square steel pipe column through the end plate connection to form a whole, which has semi-rigid characteristics , it is easy to realize the anti-seismic design principle of "strong nodes, weak components", and has good anti-seismic performance.

3. In the end-plate connection node between the square steel pipe column and the H-shaped steel beam of the present invention, the welding between components and the screw hole processing of the end plate can be completed in the factory; the construction site only needs to install and position the square steel pipe column , and then hoist the H-shaped steel beam to the corresponding position and connect it with high-strength bolts to complete the node. The on-site workload is less, and the construction efficiency is improved.

Description of drawings

Fig. 1 is the front view of the connection node of the flat end plate of the present invention.

Fig. 2 is the right side view of the connection node of the flat end plate of the present invention.

Fig. 3 is a top view of the connection node of the flat end plate of the present invention.

Fig. 4 is a front view of the connection node of the outrigger end plate of the present invention.

Fig. 5 is a right side view of the connection node of the outrigger end plate of the present invention.

Fig. 6 is a top view of the connection node of the outrigger end plate of the present invention.

In the figure: 1-square steel pipe column; 2-side steel plate; 3-joint end plate; 4-H-shaped steel beam; 5-beam end plate; 6-friction type high-strength bolt; 7-stiffening rib.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1:

The present invention is an end-plate connection node between a square steel pipe column and an H-shaped steel beam—a flat end-plate connection node, as shown in Figures 1 to 3, including a square steel pipe column 1, a side steel plate 2, a node end plate 3, and an H-shaped steel beam 4. Beam end plate 5, and friction type high-strength bolt 6. The side steel plate 2 is welded to the square steel pipe column 1; the node end plate 3 is welded to the extended end of the side steel plate 3; the beam end plate 5 is welded to the end of the H-shaped steel beam 4; the square steel pipe column 1 and the H-shaped steel beam 4 The node end plate 3 and the beam end plate 5 are connected as a whole through friction type high-strength bolts 6 . The welding method, plate thickness and weld size of the side steel plate and the side wall of the square steel pipe are calculated and determined according to the "Code for Design of Steel Structures" (GB50017-2003). The welding of side steel plates and square steel pipe columns and joint end plates, the welding of H-shaped steel beams and beam end plates, and the screw hole processing of joint end plates and beam end plates can all be completed in the factory; the construction site only needs to place square steel pipes After the column is installed and positioned, the H-shaped steel beam is hoisted to the corresponding position and connected with high-strength bolts to complete the construction of the connection node.

Example 2:

As shown in Figures 4 to 6, an end-plate connection node between a square steel pipe column and an H-shaped steel beam in the present invention—the outrigger end-plate connection node, its component composition, processing and installation are similar to those of the flat end-plate connection node, and the difference Stiffeners 7 are respectively welded at the upper and lower flanges corresponding to the beam end plate 5 and the H-shaped steel beam 4 legs.

The invention has a simple structure, solves the technical problem after installing partitions, easily realizes the anti-seismic design principle of "strong nodes, weak components", has better anti-seismic performance, and has higher construction efficiency and economic and social benefits.

Claims (3)

1. a square steel pipe column-end plate connection node of H-shaped steel beam, comprising square steel pipe column, H-shaped steel beam, is characterized in that, also comprises node end plate, beam end plate, side steel plate; Beam end plate and H The ends of the shaped steel beams are connected by welds, and there are bolt holes on the end plates of the beams; the steel plates on both sides are connected by welds to the side walls of the square steel pipe columns; Corresponding screw holes on beam end plates; square steel pipe columns and H-shaped steel beams are connected into a whole by means of joint end plates and beam end plates through friction-type high-strength bolts. 2. The end plate connection node of a square steel pipe column-H-shaped steel beam according to claim 1, characterized in that, the width of the side steel plate is associated with the installation of the H-shaped steel beam, when one side of the square steel pipe column H-shaped steel beams are installed, and the side steel plate is placed in the middle of the width of the side wall plate of the square steel pipe column; when H-shaped steel beams are installed on both sides of the square steel pipe column, the side steel plate overlaps the entire width of the side wall plate of the square steel pipe column. 3. The end-plate connection node of a square steel pipe column-H-shaped steel beam according to claim 1, characterized in that, the connection between the H-shaped steel beam and the square steel pipe column is either a flat end-plate node or an outrigger For end plate joints, when using outrigger end plate joints, stiffeners are welded to the outrigger part of the beam end plate.