CN112267561A - A memory alloy inclined bar steel truss beam-column connection part - Google Patents

Abstract

A memory alloy oblique bar steel truss beam-column connection part comprises a rectangular steel pipe column with column end caps, an H-shaped steel column with end plates and stiffeners, an H-shaped steel truss beam with end plates, and a memory alloy oblique bar of the steel truss and high-strength bolts. In the connection part of the steel truss of the memory alloy oblique rod, the memory alloy oblique rod can play an anti-seismic and energy dissipation role in the structure by its own characteristics, and the memory alloy oblique rod of the steel truss can resist corrosion and increase the use of the building. Compared with the existing engineering nodes, it can avoid complex construction environment and high-intensity labor, and minimize the construction difficulty, engineering cost and maintenance cost during the service period.

Description

A memory alloy inclined bar steel truss beam-column connection part

technical field

The invention relates to the technical field of building steel structure engineering, in particular to a beam-column connection part of a memory alloy oblique-rod steel truss.

Background technique

With the application of steel structures in the construction industry, the working environment of the current construction site has been significantly improved. Due to the improvement of existing construction technology and the requirements of builders for the working environment, a large number of prefabricated buildings have appeared. However, according to the needs of structural construction Different forms of structural members are designed, and structures with strong joints and weak beams are common. When damaged by natural disasters, the structure may need to be overhauled or directly demolished, losing its use value and threatening people's lives and properties.

SUMMARY OF THE INVENTION

In order to achieve the above object, the present invention adopts the following technical solutions:

A memory alloy oblique bar steel truss beam-column connection part comprises a rectangular steel pipe column with a column end cap, an H-shaped steel column is arranged on the upper part of the rectangular steel pipe column with a column end cap, and the H-shaped steel column is surrounded by end caps with end caps. The H-shaped steel truss girder of the plate, the inclined rod at the end of the H-shaped steel column adopts a memory alloy material inclined rod, and high-strength bolts are used to connect them.

The rectangular steel pipe column with column end caps includes a column cap with bolt holes and a rectangular steel column, and the bolt holes are connected with the bolt holes corresponding to the end plates of the H-shaped steel column with high-strength bolts.

The H-shaped steel column includes a lower end plate with bolt holes, a flange plate with upper and lower bolt holes, a connecting plate with bolt holes for upper stiffeners on the web, and a lower stiffener with bolt holes. The corresponding positions of the rectangular steel pipe column with column end caps are left with bolt holes for high-strength bolt connection, and the bolt holes on the flange plate and the web plate are connected with the bolt holes of the corresponding end plates of the H-shaped steel truss girder with high-strength bolts.

The H-shaped steel truss beams with end plates include steel roof truss beams and steel truss beams. The end inclined rods of the H-shaped steel roof truss beams and the steel truss beams are memory alloy inclined rods, and the two ends of the memory alloy inclined rods are made of two. The steel backing plate on the side is connected with high-strength bolts. The steel roof truss beam is designed with a certain slope to facilitate roof drainage, and the end plate with bolt holes is welded at the end of the upper chord, so as to connect with the upper part of the H-shaped steel column web plate with high-strength Bolted connection, there are bolt holes at the end of the lower chord H-shaped steel column, so as to use the external pad to connect with the stiffener at the position of the bolt hole in the H-shaped steel column web, and the upper and lower chords of the steel truss girder are welded with bolt holes at the corresponding positions. End plate to connect with the corresponding position of H-section steel column flange plate.

The steel backing plate includes an additional backing plate at the lower part of the web and a steel backing plate at both ends of the memory alloy inclined rod. The two additional backing plates at the lower part of the web have screw holes in corresponding positions to connect with the H-shaped steel column and the steel truss beam at the lower part of the web. The lower chord is connected with the corresponding bolt holes, and the two ends of the memory alloy inclined rod are connected by steel backing plates on both sides and high-strength bolts.

The high-strength bolts are connected by high-strength bolts on the entire connection part at the construction site.

A memory alloy oblique bar steel truss beam-column connection part of the present invention has the following beneficial effects:

1. Memory alloy inclined rods are used in the steel truss beam structure. When the structure suffers natural damage (earthquake), the structure can properly protect the connection parts of the memory alloy inclined rod steel truss beam-column, and play the function of earthquake resistance and energy dissipation.

2. The mechanical design and factory-produced components are relatively precise and accurate, with almost no machining errors, which improves the quality of the project and reduces the workload. The installation and construction are simple, and the site only needs to simply tighten the bolts.

3. The memory alloy inclined rods in the beam-column connection part of the memory alloy inclined rod steel truss can be disassembled or replaced. With the increase of time, the components can not meet the normal use requirements, and the components can be quickly replaced to reduce the maintenance cost during the service period.

4. Compared with the existing engineering nodes, the present invention can avoid complex construction environment and high-intensity labor, and reduce construction difficulty, engineering cost and maintenance cost during service period to the greatest extent.

Description of drawings

FIG. 1 is an exploded schematic diagram of a beam-column joint provided by the present invention.

FIG. 2 is a schematic diagram of the general assembly of the beam-column joint provided by the present invention.

3 is a schematic diagram of the H-shaped steel truss beam provided by the present invention.

FIG. 4 is a schematic diagram of an H-shaped steel house truss beam provided by the present invention.

FIG. 5 is a schematic diagram of an H-shaped steel truss beam provided by the present invention.

in,

1-H-section steel column with end plate, lower end plate of 101-H-section steel column, flange plate of 102-H-section steel column, web upper stiffener of 103-H-section steel column with bolt hole connection plate, 104-H Stiffeners with bolt holes in the lower part of the web of the section steel column, 2- H-section steel roof truss beam with end plates, 201- Upper chord of the H-section steel roof truss beam, 202- H-section steel roof truss beam with inclined rods, 203 - Belt Bottom chord of H-section steel truss girder with bolt holes, memory alloy diagonal rods of 204-H-section steel truss girder, 3-H-section steel truss girder with end plate, top chord of 301-H-section steel truss girder, 302-H-section steel house Diagonal rod of truss beam, bottom chord of 303-H-shaped steel truss beam, memory alloy inclined rod of 304-H-shaped steel roof truss beam, 4-rectangular steel column, 401-rectangular steel pipe column, 402- end plate on rectangular steel pipe column, 5- The end plate at the end of the roof truss beam, 6- The end plate at the end of the truss beam, 7- All high-strength bolts, 8- Steel backing plate with bolt holes, 801-H-shaped steel roof truss beam at both ends of the memory alloy inclined rod steel pad Plate, 802-H-shaped steel truss girders, memory alloy slanted rod ends, steel backing plates, 9-all bolt holes.

Detailed ways

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

In order to solve the problems existing in the existing structural connection nodes, as shown in Figures 1 to 5, a memory alloy inclined bar steel truss beam-column connection part includes a rectangular steel tube column 4 with column end caps. The upper part of the rectangular steel pipe column 4 is provided with an H-shaped steel column 1, and the H-shaped steel column 1 is surrounded by an H-shaped steel truss beam (2 or 3) with end plates, and the end oblique bars (204 or 3) of the H-shaped steel column 4 304) A memory alloy material oblique rod is used, and high-strength bolts 7 are connected between them.

The rectangular steel pipe column 4 with column end cap includes a column cap 401 with bolt holes and a rectangular steel column 402. The bolt holes 9 are connected with the bolt holes 9 corresponding to the H-shaped steel column end plate 101 with high-strength bolts 7.

The H-shaped steel column 1 includes a lower end plate 101 with bolt holes, a flange plate 102 with upper and lower bolt holes, a web upper stiffener with bolt holes 9 connecting plate 103 and a lower stiffener 104 with bolt holes, with bolts. The lower end plate 101 of the hole and the corresponding position of the rectangular steel pipe column 4 with column end caps are left with bolt holes 9 for high-strength bolt 7 connection, and the bolt holes 9 on the flange plate 102 and the web plate are all connected with the H-shaped steel truss girder 2. The bolt holes 9 of the corresponding end plates are connected with high-strength bolts 7 .

The H-shaped steel truss girder (2 or 3) with end plates includes a steel roof truss girder 2 and a steel truss girder 3, and the end inclined rods of the H-shaped steel roof truss girder 2 and the steel truss girder 3 are made of a memory alloy. The inclined rod (204 or 304), the two ends of the memory alloy inclined rod (204 or 304) are connected by the steel backing plates (801 or 802) on both sides and the high-strength bolts 7, and the steel roof truss beam 2 has a certain slope according to the design In order to drain the roof, an end plate 5 with bolt holes is welded at the end of the upper chord, so as to be connected with the upper connecting plate 103 of the H-shaped steel column web with high-strength bolts 7, and the end 203 of the lower chord H-shaped steel column has bolt holes 9 for the use of external The backing plate 8 is connected with the stiffening rib 104 at the position of the bolt hole 9 on the web of the H-shaped steel column 1, and the corresponding position of the upper chord 301 and the lower chord 303 of the steel truss girder is welded with an end plate 6 with bolt holes, so as to be connected with the H-shaped steel column wing. The edge plates 102 are connected at corresponding positions.

The steel backing plate 8 includes an additional backing plate 8 at the lower part of the web and a steel backing plate (801 or 802) at both ends of the memory alloy inclined rod (204 or 304). In order to connect with the corresponding bolt holes 9 of the H-shaped steel column 203 at the lower part of the web and the lower chord 203 of the steel truss girder, the two ends of the memory alloy inclined rod (204 or 304) are made of steel backing plates (801 or 802) on both sides and high-strength Bolt 7 to connect.

The high-strength bolts 7 are connected by the high-strength bolts 7 in the entire connection part at the construction site.

The construction process of the present invention is the following steps,

Step 1. According to the construction conditions on site and people's needs, the precise design of the components is carried out by the mechanical design company, and then processed by the factory and transported back to the construction site;

Step 2, at the construction site, a mechanical vehicle is used to hoist the rectangular steel column 4, tighten a part of the pre-tightening force of the high-strength bolts 7 at the foot of the rectangular column, and use four ropes to fix and erect;

Step 3, use high-strength bolts 7 on the construction site to connect the two ends of the memory alloy inclined rod (204 or 304) to the H-beam truss beam ( 2 or 3), and then connect the H-shaped steel column 4 with the H-shaped steel truss beam (2 or 3), and tighten the high-strength bolts 7 to the maximum state to form the upper H-shaped steel truss beam (2 or 3) structural part;

Step 4: Lift the upper H-shaped steel truss girder (2 or 3) and directly align it with the lower rectangular steel column 4 to assemble it into a steel structure. After assembling and aligning, twist the pre-tightening force of the high-strength bolts 7 at the connection. To the maximum state, complete the installation of a memory alloy inclined bar steel truss beam-column connection part;

The above is only an engineering example of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (4)

1. The utility model provides a memory alloy down tube steel truss beam column connection position, its characterized in that, including rectangle steel-pipe column (4) of taking the column end cap, rectangle steel-pipe column (4) upper portion of taking the column end cap is provided with H shaped steel post (1), H shaped steel post (1) has H shaped steel truss roof beam (2 or 3) all around, tip down tube (204 or 304) of H shaped steel post (4) adopt a memory alloy material down tube, connect by high strength bolt (7) between each steel member.

2. The connecting part of the memory alloy diagonal steel truss beam column as claimed in claim 1, wherein: h shaped steel post (1) is including lower part end plate (101) of taking the bolt hole, flange board (102) of taking upper and lower bolt hole, web upper portion stiffening rib area bolt hole (9) connecting plate (103) and lower part take bolt hole stiffening rib (104), and bolt hole (9) are left in the corresponding position of lower part end plate (101) of taking the bolt hole and rectangular steel pipe column (4) of taking the post end cap and are carried out high strength bolt (7) and connect, and bolt hole (9) on flange board (102) and the web all adopt high strength bolt (7) to be connected for bolt hole (9) with the corresponding end plate of H shaped steel truss roof beam (2).

3. The connecting part of the memory alloy diagonal steel truss beam column as claimed in claim 1, wherein: the H-shaped steel truss girder (2 or 3) with the end plates comprises a steel roof truss girder (2) and a steel truss girder (3), the end part diagonal rods of the H-shaped steel roof truss girder (2) and the H-shaped steel truss girder (3) are memory alloy diagonal rods (204 or 304), two ends of each memory alloy diagonal rod (204 or 304) are connected through steel backing plates (801 or 802) and high-strength bolts (7) on two sides, the steel roof truss girder (2) is designed with a certain gradient so as to be convenient for roof drainage, the end plates (5) with bolt holes are welded at the upper chord end part so as to be connected with the upper connecting plates (103) of the web plates of the H-shaped steel columns through the high-strength bolts (7), the lower chord H-shaped steel column end (203) part is provided with the bolts (9) so as to be connected with the stiffening ribs (104) at the positions with the bolt holes of the web plates of the H-shaped steel columns by using the additional backing plates (8), and the bolt holes (6) with the bolt holes at the corresponding positions of the upper chord (301, so as to be connected with the corresponding position of the H-shaped steel column flange plate (102).

4. The connecting part of the memory alloy diagonal steel truss beam column as claimed in claim 1, wherein: the steel backing plate (8) comprises a web plate lower additional backing plate (8) and steel backing plates (801 or 802) at two ends of a memory alloy diagonal rod (204 or 304), screw holes (9) are formed in corresponding positions of the two additional backing plates (8) at the web plate lower portion and are used for being connected with bolt holes (9) corresponding to H-shaped steel columns (203) at the web plate lower portion and steel truss girder lower chords (203), and the two ends of the memory alloy diagonal rod (204 or 304) are connected through the steel backing plates (801 or 802) at two sides and high-strength bolts (7).

Images