CN110230354A - A kind of I-shaped plate connection beam-column node structure and connection method - Google Patents

Abstract

The invention discloses a beam-column joint structure and a connection method of an I-shaped plate connection. By welding the I-shaped plate connecting member on the H-shaped column at the beam-column joint of a steel frame, the beam-column joint of the invention can improve the traditional I-shaped column The weak shaft wedge-shaped stiffened plate connection has poor plastic rotation capacity, and it is not easy to realize the deficiencies of the plastic hinge on the beam moving outward and the seismic design requirements of the weak member of the strong node. And replace the side plate of the traditional side plate reinforced node with an I-shaped plate, and set the upper and lower transverse stiffeners and the middle vertical stiffener between the I-shaped plate and the H-shaped column corresponding to the upper and lower flanges and webs of the H-shaped beam. Stiffeners make the force transmission more clear and reasonable. The end of the flange of the H-beam is welded with the expansion plate to form a beam-column joint with an enlarged flange head. This joint has the characteristics of a strong joint and a weak member. Under the action of reciprocating load, the plastic hinge on the beam can be moved outward, and the joint can be increased at the same time. Ductility and load-carrying properties.

Description

A beam-column joint structure and connection method for I-shaped plates

technical field

The invention belongs to the field of construction engineering, and relates to an I-shaped plate connecting beam-column node structure and a connecting method.

Background technique

The "Code for Seismic Design of Buildings" requires that "box-shaped columns should be used when columns are rigidly connected to beams in two mutually perpendicular directions." However, if box-shaped columns are used in projects where I-shaped columns can be used, the structural cost will increase. . In actual engineering, the connection in the direction of the weak axis of the I-shaped column is as common as the connection of the strong axis, but the plastic rotation capacity of the widely used wedge-shaped stiffened plate connection of the weak axis of the I-shaped column is poor, and it is difficult to realize the outward movement of the plastic hinge on the beam and the " Therefore, the use of this connection form in the earthquake-resistant area has buried certain safety hazards.

Contents of the invention

The object of the present invention is to provide a joint structure and connection method for I-shaped plates connecting beams and columns, so as to overcome the deficiencies in the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

An H-shaped beam-column joint structure, including H-shaped beams, H-shaped columns, I-shaped plate connecting members and wing expansion plates, H-shaped beams include beam flanges and beam webs, and H-shaped columns include column flanges and column webs The connecting member of the plate and the I-shaped plate includes a transverse stiffener, a vertical stiffener and an I-shaped plate; the upper and lower ends of the vertical stiffener are respectively provided with a transverse stiffener, and the two transverse stiffeners are arranged in parallel, and the transverse stiffener is perpendicular to the column. The flange and the column web are arranged between the two column flanges. In the direction of the weak axis of the H-shaped column, the three end faces of the transverse stiffener are respectively welded to the column web and the two column flanges. The upper and lower ends of the vertical stiffener Weld with one side of the two transverse stiffeners respectively, weld one side end of the vertical stiffener with the column web; the other end of the transverse stiffener and the other side of the vertical stiffener Side welding; the other side of the I-shaped plate is welded with a connecting plate whose largest surface is parallel to the largest surface of the vertical stiffener, and the connecting plate and the beam web are connected by bolts.

Further, the maximum plane of the I-shaped plate is I-shaped, and the thickness of the I-shaped plate is the same as the thickness of the flange of the H-shaped column. The upper and lower ends of the I-shaped plate are respectively the upper flange and the lower flange, and the upper flange and the lower flange There is a vertical web between the edges; the length of the upper and lower flanges of the I-shaped plate is greater than the sum of the width of a column web and the thickness of two column flanges of an H-shaped column.

Further, the two beam flanges of the H-shaped beam are respectively in the same plane as the two transverse stiffeners; the beam web of the H-shaped beam is in the same plane as the vertical stiffeners.

Furthermore, two side surfaces of the beam flange of the H-shaped beam are respectively welded with a wing expansion plate, and in the direction of the weak axis of the H-shaped column, one end surface of the wing expansion plate is welded to the other side of the I-shaped plate.

Furthermore, in the direction of the strong axis of the H-shaped column, a connecting plate with the largest plane parallel to the column web is welded on the outer side of the column flange. The beam web of the H-shaped beam and the connecting plate are fixedly connected by bolts. The end face of the beam flange is welded to the outer side of the column flange, one end face of the expanded flange is welded to the outer side of the column flange, and one side of the expanded flange is welded to one side of the I-shaped plate protruding from the H-shaped column flange.

Furthermore, the largest plane of the wing expansion plate is a trapezoidal structure; in the direction of the weak axis of the H-shaped column, the plane where the right-angle side of the wing expansion plate is located is welded to the other side of the I-shaped plate.

Further, in the direction of the strong axis of the H-shaped column, the plane where the right-angled side of the wing expansion plate is welded to one side of the column flange, and the plane where one of the parallel sides of the wing expansion plate is located is welded to one side of the I-shaped plate.

Further, the beam web of the H-shaped beam is connected to the connecting plate by a plurality of high-strength bolts, and the plurality of high-strength bolts are longitudinally arranged in single or multiple rows.

Further, the two transverse stiffeners at both ends of the vertical stiffener are respectively located at the center of the upper flange and the lower flange of the I-shaped plate, the vertical stiffeners are located at the center of the vertical web of the I-shaped plate, and the Connections are welded connections.

A method for connecting an I-shaped plate to a beam-column joint structure, comprising the following steps:

Step 1. Prepare the connecting member of the I-shaped plate: Weld two upper and lower transverse stiffeners at the center of the upper and lower flanges of the I-shaped plate, and weld the vertical stiffener at the center of the vertical web of the I-shaped plate to form an I-shaped plate connecting member;

Step 2, welding the I-shaped plate connecting member on the H-shaped column at the beam-column node, the horizontal stiffener and the vertical stiffener of the I-shaped plate connected member correspond to the positions of the beam flange and the beam web of the H-shaped beam respectively;

Step 3. Weld the connecting plate on the column flange of the H-shaped column with the I-shaped plate connecting member and the web of the I-shaped plate, corresponding to the web position of the H-shaped beam in the direction of the strong axis and the weak axis, and Bolt holes are reserved on the web of the connecting plate and the H-beam;

Step 4. Weld the wing expansion plates on both sides of the end beam flange of the H-shaped beam;

Step 5. Connect the H-shaped beam with the H-shaped beam in the direction of the strong axis: Use bolts to connect the web of the H-shaped beam with the connecting plate welded on the flange of the H-shaped column and pre-tighten the beam flange of the H-shaped beam. And the expansion plate and the column flange of the H-shaped column are connected by full penetration butt welds, the part of the expansion plate and the I-shaped plate protruding from the column flange is welded, and finally the high-strength bolts are finally screwed;

Step 6. Connect the weak axis of the H-column to the H-beam: Use bolts to connect the beam web of the H-beam to the connecting plate welded on the web of the I-shaped plate and pre-tighten the H-beam. The beam flange and the expansion plate are connected with the upper and lower flanges of the I-shaped plate by full penetration butt welds, and finally the high-strength bolts are finally screwed to complete the connection of the I-shaped plate to the beam-column joint structure.

Compared with the prior art, the present invention has the following beneficial technical effects:

The invention relates to a beam-column joint structure and connection method of an I-shaped plate. By welding the I-shaped plate connecting member on the H-shaped column at the beam-column joint of the steel frame, the I-shaped plate connecting member consists of two upper and lower transverse stiffeners, one The vertical stiffener and an I-shaped plate are welded together, and have the characteristics of a strong joint domain; the beam-column joint of the invention can improve the poor plastic rotation capacity of the traditional I-shaped column weak-axis wedge-shaped stiffened plate connection, and it is difficult to achieve plasticity on the beam. The deficiencies in the seismic design requirements of hinges moving outwards and strong joints and weak members make better use of the advantages of side plate and wing plate reinforced joints, and replace the side plates of traditional side plate reinforced joints with I-shaped plates , the H-shaped column can be connected in the same way as the H-shaped beam in the direction of the strong and weak axes, and the upper and lower transverse beams can be set between the I-shaped plate and the H-shaped column corresponding to the upper and lower flanges and webs of the H-shaped beam. Stiffeners and vertical stiffeners in the middle make the force transmission more clear and reasonable. The end of the flange of the H-shaped beam is welded with the expanded flange to form a beam-column node with an enlarged flange head. This node has the characteristics of a strong node and a weak member. Under the action of reciprocating load, the plastic hinge on the beam can be moved outward, and the joint can be increased at the same time. Ductility and load-carrying properties.

The invention has the advantages of simple structure, convenient connection and reasonable acceptance; the I-shaped plate connecting member can be processed in the factory and connected with the steel column, and the on-site installation is exactly the same as the traditional connection, which will not increase the on-site workload, but can fundamentally improve the traditional weak shaft For the problem of poor plastic rotation capacity of the wedge-shaped stiffened plate connection, the plastic hinge on the beam can be moved outward in both the strong and weak axis directions, thereby increasing the ductility and energy dissipation performance of the joint.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Figure 2 is a schematic diagram of the assembly of the beam-to-column joint connected by the I-shaped plate.

Figure 3 is a schematic diagram of the assembly of the beam-column joint connected by the connecting plate.

Fig. 4 is a schematic diagram of a prefabricated H-beam with wing spreaders.

Figure 5 is a schematic diagram of the failure of the beam-to-column weak axis connection of the I-shaped plate connection;

Fig. 6 is the load-displacement hysteresis curve of the beam-to-column weak-axis connection of the I-shaped plate connection.

In the figure: 1-H-shaped column, 2-H-shaped beam, 3-transverse stiffener, 4-vertical stiffener, 5-I-shaped plate, 6-connecting plate, 7-flap expansion plate, 8-bolt.

Detailed ways

The present invention is described in further detail below in conjunction with accompanying drawing:

As shown in Figures 1 to 4, an I-shaped beam-column joint structure includes an H-shaped beam 2, an H-shaped column 1, an I-shaped plate connecting member, and a wing expansion plate 7. The H-shaped beam 2 includes a beam flange and a beam The web, the H-shaped column 1 includes the column flange and the column web, the I-shaped plate connecting member is arranged in the direction of the weak axis of the H-shaped column, and the I-shaped plate connecting member includes the transverse stiffener 3, the vertical stiffener 4 and the I-shaped Plate 5, transverse stiffener 3, vertical stiffener 4 and I-shaped plate 5 are arranged vertically in pairs; the upper and lower ends of vertical stiffener 4 are respectively provided with a transverse stiffener 3, two transverse stiffeners The stiffeners 3 are arranged in parallel, and the transverse stiffeners 3 are arranged between the two column flanges perpendicular to the column flange and the column web. The upper and lower ends of the stiffener 4 are welded to one side of the two transverse stiffeners 3 respectively, and one side end of the vertical stiffener 4 is welded to the column web; the other end of the transverse stiffener 3 is welded to the vertical stiffener 4 The other side end face is welded to one side of the I-shaped plate 5 at the same time; the other side of the I-shaped plate 5 is welded with a connecting plate 6 whose largest surface is parallel to the largest surface of the vertical stiffener 4, and the connecting plate 6 and the beam web are connected by bolts connect;

The maximum plane of the I-shaped plate 5 is I-shaped, and the thickness of the I-shaped plate 5 is the same as the thickness of the flange of the H-shaped column 1. The upper and lower ends of the I-shaped plate 5 are respectively the upper flange and the lower flange, and the upper flange and the lower flange There is a vertical web between the flanges, and the upper flange, the lower flange and the vertical web all have a certain width; the length of the upper flange and the lower flange of the I-shaped plate 5 is longer than a column web of the H-shaped column 1 The sum of the slab width and the thickness of the two column flanges;

Among them, the two beam flanges of the H-beam 2 are in the same plane as the two transverse stiffeners 3 respectively; the largest plane of the spreader plate 7 is a trapezoidal structure; the beam web of the H-beam 2 and the vertical stiffener 4 are in the same plane Inside;

The two sides of the beam flange of the H-shaped beam 2 are respectively welded with a wing expansion plate 7, and in the direction of the weak axis of the H-shaped column, one end surface of the wing expansion plate 7 is welded to the other side of the I-shaped plate 5;

In the direction of the strong axis of the H-shaped column, the outer side of the column flange is welded with a connecting plate 6 whose maximum plane is parallel to the column web. The beam web of the H-shaped beam 2 is connected to the connecting plate 6 by bolts. The H-shaped beam 2 The end face of the beam flange is welded to the outer side of the column flange, the end face of one side of the expansion plate 7 is welded to the outer side of the column flange, and one side of the expansion plate 7 is welded to one side of the I-shaped plate 5, that is, the side of the expansion plate 7 One side is welded with the part of the I-shaped plate 5 protruding from the column flange;

In the direction of the weak axis of the H-shaped column, the outer side of the I-shaped plate 5 is welded with a connecting plate 6 whose maximum plane is parallel to the column flange. The beam web of the H-shaped beam 2 and the connecting plate 6 are fixedly connected by bolts 8. The end face of the beam flange of the beam is welded to the outer side of the I-shaped plate 5, and the end face of one side of the expanded wing plate 7 is welded to the outer side of the I-shaped plate;

The largest plane of the wing expansion plate 7 is a trapezoidal structure; in the direction of the strong axis of the H-shaped column, the plane where the right-angle side of the wing expansion plate 7 is located is welded to the other side of the I-shaped plate 5;

In the direction of the weak axis of the H-shaped column, the plane where the right-angled side of the wing expansion plate 7 is welded to one side of the column flange, and the plane where one of the parallel sides of the wing expansion plate 7 is located is welded to one side of the I-shaped plate 5;

Both the H-shaped beam 2 and the H-shaped column 1 are hot-rolled H-shaped steel; one side of the I-shaped plate 5 is welded to the end face of the column flange;

The two transverse stiffeners 3 at both ends of the vertical stiffener 4 are respectively located at the center of the upper flange and the lower flange of the I-shaped plate 5, and the vertical stiffener 4 is located at the center of the vertical web of the I-shaped plate 5, The connections between them are welded joints;

The transverse stiffener 3, the vertical stiffener 4 are welded to the column flange and the column web of the H-shaped column 1, and the I-shaped plate 5 is welded to the column flange of the H-shaped column 1;

The connecting plate 6 is respectively welded on the flange of the H-shaped column 1 and the web of the "I"-shaped plate 5, corresponding to the position of the web of the H-shaped beam 2 in the direction of the strong and weak axes.

Specifically, in the direction of the weak axis of the H-shaped column, the beam flange of the H-shaped beam 2 and the spreader plate 7 and the upper and lower flanges of the I-shaped plate 5 are connected by full penetration butt welds; in the direction of the strong axis of the H-shaped column, The beam flange of the H-shaped beam 2 and the spreader plate 7 are connected with the column flange of the H-shaped column 1 by a full penetration butt weld;

The beam web of the H-shaped beam 2 is connected to the connecting plate 6 through a plurality of high-strength bolts 8, and the plurality of high-strength bolts 8 are longitudinally arranged in single or multiple rows;

A method for connecting beam-to-column joints with I-shaped plates, in which an I-shaped plate connecting member is welded at the node of an H-shaped column 1, and the I-shaped plate connecting member consists of a vertical stiffener 4, an I-shaped plate 5, and two upper and lower transverse stiffeners The ribs 3 are connected by welding seams, and the connecting plates 6 are respectively welded in the directions of the strong axis and the weak axis of the H-shaped column 1. The connecting plates 6 are welded on the flange of the H-shaped column 1 in the direction of the strong axis, and connected in the direction of the weak axis. The plate 6 is welded on the web of the I-shaped plate 5, and the wing expansion plates 7 are respectively welded on both sides of the upper and lower flanges of the end beam of the H-shaped beam 2 to obtain prefabricated steel beams and steel columns; then transported to the site for use The steel beams and columns are connected by means of flange butt welding and web bolt connection, and the assembly is completed to form steel frame beam-column joints.

A method for connecting beam-to-column joint structures with I-shaped plates includes the following steps:

Step 1. Weld two upper and lower transverse stiffeners 3 at the center of the upper and lower flanges of the I-shaped plate 5, and weld the vertical stiffener 4 at the center of the vertical web of the I-shaped plate 5 to form an I-shaped plate connecting member;

Step 2. Weld the I-shaped plate connecting member on the H-shaped column 1 at the beam-column node. The horizontal stiffener 3 and the vertical stiffener 4 of the I-shaped plate connected member are respectively connected with the beam flange and the beam web of the H-shaped beam 2. Correspondingly, the upper surface of the upper transverse stiffener 3 is flush with the upper surface of the upper beam flange of the H-beam 2; the lower surface of the lower transverse stiffener 3 is flush with the lower surface of the beam lower flange of the lower end of the H-beam 2 ;

Step 3. Weld the connecting plate 6 on the column flange of the H-shaped column 1 with the I-shaped plate connecting member and the web of the I-shaped plate 5, and the web position of the H-shaped beam 2 in the direction of the strong axis and the weak axis Correspondingly, bolt holes are reserved on the connecting plate 6 and the web of the H-beam;

Step 4, welding the wing expansion plate 7 on both sides of the end beam flange of the H-shaped beam 2;

Step 5, the connection between the strong axis direction of the H-shaped column 1 and the H-shaped beam 2 is as follows: use a plurality of high-strength bolts 8 to connect the web of the H-shaped beam 2 and the connecting plate welded on the flange of the H-shaped column 1 6-phase connection preloading, the beam flange of the H-beam 2 and the flange 7 and the flange of the H-shaped column 1 are connected by a full penetration butt weld, and the flange 7 and the I-shaped plate 5 extend out of the column flange Weld the parts, and finally screw the high-strength bolts;

Step 6. The connection between the weak axis direction of the H-shaped column 1 and the H-shaped beam 2 is as follows: use a plurality of high-strength bolts 8 to connect the beam web of the H-shaped beam 2 to the web welded on the I-shaped plate 5 The plate 6 is connected and pre-tightened, the beam flange of the H-beam 2 and the flange plate 7 are connected with the upper and lower flanges of the I-shaped plate 5 with full penetration butt welds, and finally the high-strength bolts are finally screwed to complete the I-shaped Slab connections for beam-to-column joint structures.

Steps 1 to 4 of the I-shaped plate connecting beam-column node and the connecting method of the present invention can all be processed in a factory, thereby speeding up the construction speed and ensuring the quality of the project. Then it is connected on site through a bolt-welding mixed connection method. The same connection method can be used in the direction of the strong and weak axes of the H-shaped column. The beam-column connection is convenient and has good practicability.

The above detailed description of the preferred embodiments of this patent is for those skilled in the art to understand and apply the steel frame beam-column joint of the present invention. However, this patent is not limited to the above-mentioned embodiments, and those skilled in the art can make various changes within the scope of their knowledge without departing from the purpose of this patent.

The failure mode and anti-seismic performance of the beam-column weak-axis connection node of the present invention will be described below.

Utilize the finite element software ABAQUS to simulate and analyze the mechanical performance of the beam-column weak axis connection node of the present invention under the action of cyclic load, referring to Yu Yousheng, Wang Jian, Huang Weiping's article "Steel Frame Beam-Column Weakness" in "Building Structure" "Experimental Research on the Failure Form of Flange Weakened Joints of Shaft Bolted and Welded Mixed Connections", the steel column section is HW250×250×9×14, the steel beam section is HN300×150×6.5×9, and the national standard Q235 steel is used. The width of the "I" plate is 450mm, the height of the upper and lower flanges is 50mm, the height of the web is 250mm, and the width is 50mm, which is the same thickness as the column flange. The total length of the wing expander is 200mm, the width is 50mm, and the horizontal length of the oblique transition section is 100mm. The weld connection adopts binding constraints, and the beam web is connected by six M20 friction-type high-strength bolts, and its pretension and surface contact effects are considered in the finite element. The bolt preload is applied first, then the column top axial force is applied, and the beam end cyclic load is finally applied. The results of finite element analysis are as follows.

(1) Destruction mode. The schematic diagram of the failure of the beam-to-column weak-axis connection of the I-shaped plate connection is shown in Figure 5. Under cyclic loading, when the interstory displacement angle is about 0.03rad, the beam flange at the end of the spreader buckles, and in the subsequent loading, the buckling of the beam flange and the web at the end of the spreader gradually intensifies, and the load reaches 0.05rad The Mises stress cloud diagram of the beam-column joint at the end is shown in Figure 6. It can be seen that the plastic hinge is formed on the beam section at the end of the spreader plate on the beam, indicating that the weak-axis connection node of the present invention can better realize the plasticity of the beam under the action of cyclic load. The hinges are moved outward to meet the seismic design requirements of "strong nodes and weak members".

(2) Seismic performance of nodes. Fig. 6 is the load-displacement hysteresis curve diagram of the I-shaped plate connection beam-column weak axis connection. It can be seen from the figure that the hysteresis curve of the weak axis connection node of the present invention is a plump shuttle without pinching phenomenon, indicating that the joint is It has good energy dissipation capacity and strong anti-seismic performance.

Claims (10)

1. a kind of I-shaped plate connects beam-column node structure, which is characterized in that including H-type beam (2), H-type column (1), the connection of I-shaped plate Component and expansion wing plate (7), H-type beam (2) includes flange of beam and web, and H-type column (1) includes the column edge of a wing and column web, I-shaped plate Connecting elements includes transverse stiffener (3), vertical ribbed stiffener (4) and I-shaped plate (5)；Vertical ribbed stiffener (4) upper and lower ends difference Equipped with a transverse stiffener (3), two transverse stiffeners (3) are arranged in parallel, and transverse stiffener (3) is perpendicular to the column edge of a wing and column Web is set between two column edges of a wing, in the weak axis direction of H-type column, (3) three end faces of transverse stiffener respectively with column web and Two column edge of a wing welding, vertical ribbed stiffener (4) upper and lower end faces are welded with a side of two transverse stiffeners (3) respectively, One side end face of vertical ribbed stiffener (4) and column web weld；The other end of transverse stiffener (3) and vertical ribbed stiffener (4) Another side end face welded simultaneously with a side of I-shaped plate (5)；Another side of I-shaped plate (5) is welded with largest face It is parallel to the connecting plate (6) of vertical ribbed stiffener (4) largest face, connecting plate (6) is connect with web by bolt (8).

2. a kind of I-shaped plate according to claim 1 connects beam-column node structure, which is characterized in that I-shaped plate (5) is most Plane is I-shaped greatly, and the thickness of I-shaped plate (5) is identical as the edge of a wing thickness of H-type column (1), I-shaped plate (5) upper and lower ends difference It is vertical web between top flange and lower flange for top flange and lower flange；The top flange of I-shaped plate (5) and lower flange length are big In the sum of a column web width of H-type column (1) and two column edge of a wing thickness.

3. a kind of I-shaped plate according to claim 2 connects beam-column node structure, which is characterized in that two of H-type beam (2) Flange of beam respectively with two transverse stiffeners (3) in the same plane；The web of H-type beam (2) and vertical ribbed stiffener (4) are one In a plane.

4. a kind of I-shaped plate according to claim 2 connects beam-column node structure, which is characterized in that the beam wing of H-type beam (2) Two sides of edge are respectively welded an expansion wing plate (7), in the weak axis direction of H-type column, expand a side end face and the I-shaped of wing plate (7) It welds another side of plate (5).

5. a kind of I-shaped plate according to claim 2 connects beam-column node structure, which is characterized in that in the strong axis side of H-type column Upwards, column edge of a wing outer lateral side is welded with the connecting plate (6) that maximum planes are parallel to column web setting, the web of H-type beam (2) It is fixedly connected with connecting plate (6) by bolt (8), welds, expand wing plate (7) on the outside of the flange of beam end face and the column edge of a wing of H-type beam (2) A side end face and column edge of a wing outer lateral side weld, expand wing plate (7) side side and I-shaped plate (5) stretch out H-type column (1) edge of a wing A side welding.

6. a kind of I-shaped plate according to claim 1 connects beam-column node structure, which is characterized in that it is maximum to expand wing plate (7) Plane is trapezium structure；In the weak axis direction of H-type column, another side of plane and I-shaped plate (5) where expanding wing plate (7) right-angle side Face welding.

7. a kind of I-shaped plate according to claim 6 connects beam-column node structure, which is characterized in that in the strong axis side of H-type column Upwards, plane where expanding wing plate (7) right-angle side and one, column edge of a wing side are welded, and are expanded where wing plate (7) one of parallel edges It welds one side of plane and I-shaped plate (5).

8. a kind of I-shaped plate according to claim 1 connects beam-column node structure, which is characterized in that the soffit of girder of H-type beam (2) Plate is connect with connecting plate (6) by multiple high-strength bolts (8), and multiple high-strength bolts (8) are in single-row or multiple row longitudinal arrangement.

9. a kind of I-shaped plate according to claim 1 connects beam-column node structure, which is characterized in that vertical ribbed stiffener (4) Two transverse stiffeners (3) at both ends are located at the top flange and lower flange centre of I-shaped plate (5), described vertically to put more energy into Rib (4) is located at the vertical web centre of I-shaped plate (5), and connection therebetween is solder design.

10. a kind of for a kind of I-shaped plate connection bean column node of I-shaped plate connection beam-column node structure described in claim 1 Structure connection method, which comprises the following steps:

Step 1: preparing I-shaped plate connecting elements: two pieces of transverse directions up and down are respectively welded in the upper lower flange centre of I-shaped plate Ribbed stiffener welds vertical ribbed stiffener in the vertical web centre of I-shaped plate, forms I-shaped plate connecting elements；

Step 2: Welder's letter stencil connecting elements on H-type column at bean column node, I-shaped plate connecting elements transverse stiffener and Vertical ribbed stiffener is corresponding with the position of the flange of beam of H-type beam and web respectively；

Step 3: welded connecting plate on the column edge of a wing of the H-type column with I-shaped plate connecting elements and on the web of I-shaped plate, and strong The web position of H-type beam is corresponding on axis and weak axis direction, and the prepared screw-bolt hole on the web of connecting plate and H-type beam；

Step 4: wing plate is expanded in welding in the end flange of beam two sides of H-type beam；

Step 5: being connect in the strong axis direction of H-type column with H-type beam: by the web of H-type beam and being welded on H-type column using bolt Connecting plate on the edge of a wing is connected preload, by the flange of beam of H-type beam and expands wing plate and uses full penetration pair with the column edge of a wing of H-type column Welding seam connection, expands wing plate and I-shaped plate stretches out the part welding on the column edge of a wing, finally twists high-strength bolt eventually；

Step 6: being connect in the weak axis direction of H-type column with H-type beam: by the web of H-type beam and being welded on I-shaped plate using bolt Web on connecting plate be connected preload, the flange of beam of H-type beam and the upper lower flange for expanding wing plate and I-shaped plate are used into fine melt Saturating butt weld connection, finally twists high-strength bolt eventually, and the connection of I-shaped plate connection beam-column node structure can be completed.