CN212201015U

CN212201015U - Steel-wood composite beam component

Info

Publication number: CN212201015U
Application number: CN202020692656.5U
Authority: CN
Inventors: 张婧; 张群
Original assignee: Xian University of Architecture and Technology
Current assignee: Xian University of Architecture and Technology
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-22
Anticipated expiration: 2030-04-29

Abstract

The steel-wood composite beam component comprises I-shaped steel, wherein the upper part of the I-shaped steel is connected with an upper flange integrated wood layer, the lower part of the I-shaped steel is connected with a lower flange integrated wood layer, extruded polystyrene foam insulation boards are filled on two sides of a web plate of the I-shaped steel, and bolt holes are reserved at two ends of the I-shaped steel. The utility model has the characteristics of cross-section resistance is stronger, the dead weight is lighter.

Description

Steel-wood composite beam component

Technical Field

The utility model relates to a modern wood structure technical field, in particular to steel wood composite beam component.

Background

In recent years, light-weight steel structure prefabricated houses are rapidly developed, but the light-weight prefabricated wood structure is not as good as the steel structure due to various restriction factors. The wood structure and the steel structure have respective advantages and defects, the wood structure building has the characteristics of heat preservation, energy conservation, good earthquake resistance and the like, but the processing precision and the dimensional stability of the wood member are inferior to those of the steel member due to the anisotropy and the dry shrinkage characteristics of the wood member, the compression resistance and the shear resistance of the common wood beam are insufficient in use, and the construction and the assembly are inconvenient; the steel structure has stable performance and high strength, but the steel structure has the phenomena of easy degeneration when being heated, instantaneous damage and the like. The beam used by the existing light steel structure fabricated house is a common I-shaped steel beam or a welded I-shaped steel beam, and in order to meet the structural stress requirement, the beam height is generally designed to be high, namely the height of a web plate is large, so that the net use height of a room below the beam is small, meanwhile, the design of a beam flange plate is wide, so that the beam is heavy, uneconomical and not beneficial to earthquake resistance, and the common steel beam also easily forms a heat bridge due to too fast heat conduction. The steel-wood composite structure is a novel composite structure, can exert the performance advantages of steel and wood, and generates a synergistic effect, so that the comprehensive performance is superior to that of the original building structure.

The existing single light wood structure wood beam has insufficient bearing capacity stability; the middle beam of the single light steel structure fabricated house has the problems of high self-weight cost, poor safety and heat-insulating property and the like.

Disclosure of Invention

In order to solve the technical problem, an object of the utility model is to provide a steel-wood composite beam component, have that cross-section resistance is stronger, the characteristics that the dead weight is lighter.

In order to realize the purpose, the utility model discloses a technical scheme is:

the steel-wood composite beam component comprises I-shaped steel, wherein the upper flange of the I-shaped steel is connected with an upper flange integrated wood layer 1, the lower flange of the I-shaped steel is connected with a lower flange integrated wood layer 4, extruded polystyrene foam insulation boards 6 are filled on two sides of an I-shaped steel web, and bolt holes 3 are reserved at two ends of the I-shaped steel web.

Holes are formed in the upper flange and the lower flange of the I-shaped steel, and the I-shaped steel is respectively connected with the upper flange integrated wood layer 1 and the lower flange integrated wood layer 4 through shear screws 5.

The shear screws 5 are round head self-tapping screws or flat head self-tapping screws.

The hole spacing is larger than 150mm, and the hole edge distance is larger than 10 mm.

The I-shaped steel is H-shaped steel 2.

The cross sections of the upper flange integrated wood layer 1 and the lower flange integrated wood layer 4 are rectangular, and the width of the upper flange integrated wood layer is equal to that of the flange of the I-shaped steel.

The utility model has the advantages that:

compared with the traditional pure wood beam, the steel-wood composite beam has the advantages that the compression resistance and the shear resistance are higher than those of the pure wood beam, and the bearing capacity is higher than that of the pure wood beam;

compared with the existing common I-shaped steel beam or welded I-shaped steel beam, the steel-wood composite beam has lighter self weight and lower cost under the condition of the same section resistance.

3 the metal connecting piece is used for directly connecting the steel and the wood components, compared with the traditional concrete building, the construction period is greatly shortened, the labor investment is reduced, the factory prefabrication and assembly construction are facilitated, the construction period can be greatly shortened, and the construction quality is ensured. By combining the light I-steel and the integrated wood, the overall ductility of the structure is improved, and the earthquake resistance of the house is improved to a great extent.

4 the wood and the heat insulation board isolate the thermal bridge part of the steel, thereby playing the role of heat insulation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic connection diagram of the present invention.

Fig. 3 is a schematic view of the T-connection of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a steel-wood composite beam, steel-wood composite beam comprises integrated timber layer 1 of top flange, H shaped steel 2, the integrated timber layer 4 of bottom flange, shear screw 5, extrusion molding XPS polystyrene foam insulation board 6, integrated timber layer 1 of top flange, the integrated timber layer 4 of bottom flange, used tree species be the general tree species that is used for making the veneer, like fir, specifically can specifically select according to using the sight, the cross-sectional form is rectangle and cross-sectional length unanimous with H shaped steel 2 flange width, leave the screw hole on the top and bottom flange of H shaped steel 2, the hole diameter is decided according to using the screw model, and the hole interval should not be less than 150mm, and the hole limit is should not less than 10mm apart from, and integrated timber layer 1 of top flange, the integrated timber layer 4 of bottom flange are connected with the top and bottom flange of H shaped steel respectively through shear screw 5. The shear screws 5 are round head tapping screws or flat head tapping screws. Bolt holes 3 are reserved on webs at two ends of the H-shaped steel 2 and used for connecting the steel-wood composite beam with other beams.

The indoor column and the corner column are connected by using a flat plate connector in the length direction, as shown in fig. 2, or a right-angle connector is vertically connected to form a plane 90-degree corner, as shown in fig. 3. The H-shaped steel 2 is hot-rolled H-shaped steel, and the section size, the length and the type selection of the shear screws 5 can be determined by mechanical calculation according to the actual load. The utility model discloses when using, according to the steel wood composite beam of the corresponding length of actual needs preparation.

The concrete application scene can be suitable for the construction of small independent houses with wood structures, the horizontal bearing steel-wood composite beam is adopted to form a floor structure frame on the second floor and above, and the structural plywood floor slab is paved to form a floor. After the technology is mature, the prefabricated wood-structure house can be considered to be used for the construction of new rural areas in China and other scene constructions.

Claims

1. The steel-wood composite beam component is characterized by comprising I-shaped steel, wherein an upper flange integrated wood layer (1) is connected above the I-shaped steel, a lower flange integrated wood layer (4) is connected below the I-shaped steel, extruded polystyrene foam insulation boards (6) are filled on two sides of a web plate of the I-shaped steel, and bolt holes (3) are reserved at two ends of the I-shaped steel.

2. A steel-wood composite beam member according to claim 1, wherein the i-steel is provided with holes and is connected with the upper flange integrated wood layer (1) and the lower flange integrated wood layer (4) through shear screws (5).

3. A steel-wood composite beam element according to claim 2, wherein the shear screws (5) are round head self tapping screws or flat head self tapping screws.

4. A steel-wood composite beam structure according to claim 2, wherein the hole pitch is greater than 150mm and the hole edge pitch is greater than 10 mm.

5. A steel-wood composite beam element according to claim 1, characterized in that the i-steel is an H-section (2).

6. A steel-wood composite beam member according to claim 1, wherein the upper flange integrated wood layer (1) and the lower flange integrated wood layer (4) are rectangular in cross section and equal in width to the flange width of the i-steel.