CN215053900U - Light steel truss and connecting member thereof - Google Patents

Abstract

A light steel truss girder and a connecting member thereof comprise trusses, connecting pieces and hanging pieces, wherein the connecting pieces connect a plurality of trusses to form the truss girder, and the hanging pieces are connected with a wall body and the trusses; the truss comprises an upper chord, a lower chord, supporting rods and web members, the upper end and the lower end of the truss are respectively the upper chord and the lower chord which are parallel to each other, and a plurality of supporting rods and web members are arranged between the upper chord and the lower chord at intervals. The light steel truss is erected on a wall body through the connecting component and used as a truss girder for supporting a roof panel or a floor slab, so that the material is saved, the self weight is reduced, and meanwhile, the rigidity is strong and the bearing capacity is large.

Description

Light steel truss and connecting member thereof

Technical Field

The utility model belongs to the technical field of the building engineering technique and specifically relates to a truss girder in light steel house and connecting elements thereof.

Background

The main body structures of the light steel structure house, such as wall boards, floor slabs, beam columns and the like, are made of thin-wall section steel, and because of uniform specification, the main body components are prefabricated in a factory and then spliced into various buildings on site according to design requirements. The prefabricated building system is a novel prefabricated building system with less environmental pollution and high construction efficiency, and is widely applied to low-rise or multi-rise buildings with relatively small loads, such as villas, warehouses, prefabricated houses and the like. Chinese patent application No. 201620987342.1 introduces a connecting piece of building steel structure, and it includes wall body, purlin and connects the pendant, and the wall body is compound prefabricated plate, and the purlin is C shaped steel, fixes the purlin on the wall body through connecting the pendant. This kind of structure is unsuitable to be used in the great building of span, needs to replace the purlin with the heavy girder steel that intensity is big, because the dead weight sinks to use heavy girder steel to increase the construction degree of difficulty, needs to increase the steel column support inside the building for satisfying the atress requirement simultaneously to influence overall design.

The self-weight of the truss girder is reduced by adopting the form of the truss girder while the strength of the girder is not changed, so that an effective solution is provided. The truss is a plane or space structure which is composed of straight bars and provided with triangular units, the bars of the truss mainly bear tensile force or pressure which is perpendicular to the axial direction, but how to connect and apply the truss in a light steel structure house becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art's defect, provide a light steel truss and connecting elements thereof, erect the light steel truss on the wall body through connecting elements for support roof boarding or floor, have the characteristics that the dead weight is light, the rigidity is strong.

The technical problem of the utility model is realized with following technical scheme:

a light steel truss and its connecting member, it includes truss, link and pendant, the link connects several trusses to form the truss girder, the pendant connects wall and truss; the truss comprises an upper chord, a lower chord, supporting rods and web members, the upper end and the lower end of the truss are respectively the upper chord and the lower chord which are parallel to each other, and a plurality of supporting rods and web members are arranged between the upper chord and the lower chord at intervals.

The connecting piece comprises a web plate, wing plates and a tail plate, wherein the two wing plates are vertically arranged on two sides of the web plate, the two wing plates are respectively inclined inwards, and the tail plate is arranged at the bottoms of the wing plates; the width of the connecting piece is slightly larger than the thickness of the upper chord.

In the light steel truss and the connecting member thereof, the supporting rods are vertically arranged between the upper chord member and the lower chord member, and the web members are obliquely arranged between the adjacent supporting rods.

The top end of the wall body is fixed with the hanging pieces, the trusses are placed in the hanging pieces and fixed by self-tapping nails, the trusses are uniformly distributed on the top of a house, and the distance between the trusses is 350-550 mm; and a floor slab or a roof slab is laid on the truss.

In the light steel truss and the connecting member thereof, the upper chord member and the lower chord member are made of square steel pipes, channel steel or H-shaped steel, and the support rods and the web members are made of reinforcing steel bars, steel plates or angle steel.

The utility model discloses a connecting elements erects the light steel truss on the wall body, supports roof boarding or floor as the truss roof beam, compares in real web member save material, alleviates the dead weight, compares again in that the purlin rigidity is strong, the bearing capacity is big. The length of the truss prefabricated in a factory is generally fixed, and the truss is connected to the designed length through the connecting piece during use, so that construction and installation are convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the truss of the present invention;

FIG. 3 is a schematic structural diagram of the connector of the present invention;

FIG. 4 is a partial enlarged view and a sectional view A-A of the connector of the present invention;

fig. 5 is a schematic structural view of the present invention applied to a multi-story building.

The list of labels in the figure is: 1. wall body, 2, roof panel, 3, truss, 4, upper chord, 5, lower chord, 6, support rod, 7, web member, 8, connecting piece, 81, web plate, 82, wing plate, 83 tail plate, 9, pendant, 10 and floor panel.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses a truss 3 and the connecting elements who is used for connecting the truss, the connecting elements includes connecting piece 8 and pendant 9, is connected by connecting piece 8 between the truss, and wall body and truss pass through pendant 9 and link to each other. The wall body 1 is a composite prefabricated plate, the top and the bottom of the wall body are provided with frames, a plurality of C-shaped steel keels are distributed in the end parts of the wall board and the wall board, and heat-insulating materials are filled in the wall body formed by the frames and the end parts to form a heat-insulating layer.

As shown in fig. 2, the truss 3 includes an upper chord 4, a lower chord 5, support rods 6 and web members 7, the upper end and the lower end of the truss are respectively the upper chord 4 and the lower chord 5 which are parallel to each other, a plurality of support rods 6 and web members 7 are arranged between the upper chord and the lower chord at intervals, the support rods connect the upper chord and the lower chord into a whole in the vertical direction, and oblique web members 7 are arranged between adjacent support rods. The supporting rods and the web members form vertical and oblique supports respectively, and form a stable structure system together with the upper chord member and the lower chord member, and the system has certain rigidity and can meet the requirements on the bending resistance and the shearing resistance of the beam. The truss is the frame construction that adopts the shaped steel welding to form, and upper chord member and lower chord member can be square steel pipe, channel-section steel or H shaped steel, and the shaped steel of branch and web member can be reinforcing bar, steel sheet or angle steel (the utility model discloses with the channel-section steel as upper and lower chord member, the steel sheet conduct with branch and web member). The truss can be a plane structure formed by an upper channel steel or an lower channel steel or H-shaped steel, and can also be a three-dimensional structure formed by four square pipes, the length of the truss is 1.5-2.0m, the height of the truss is 200-700 mm, and the interval between adjacent supporting rods is 500-700 mm.

As shown in fig. 3 and 4, when the building span is large, a plurality of trusses need to be connected together by a connecting member 8 to form a truss girder, wherein the connecting member 8 includes a web 81, wing plates 82 and a tail plate 83, two wing plates 82 are vertically arranged on two sides of the web 81, and the two wing plates are respectively inclined inward. The bottom of the wing plate is provided with a tail plate 83 which inclines outwards. The width of the connecting piece is slightly larger than the thickness of the upper chord. Two trusses are placed in parallel during connection, the connecting pieces are respectively sleeved at the connecting parts of the trusses from the upper side and the lower side, the self-tapping screw is locked, and the wing plates are easy to fix when being obliquely sleeved towards the inner side. A plurality of trusses are connected into a whole through the special-shaped connecting piece, so that the requirement of large span in a building is met, the purline is high in rigidity and large in bearing capacity, and the truss can serve as a beam to bear the weight of a roof board or a floor slab.

The working process of the present invention is further explained as follows:

the top surface of a prefabricated wall body in a house with a light steel structure is connected with a top guide beam, and the top guide beam is channel steel or H-shaped steel matched with the thickness of the wall body. A hanging piece 9 is arranged at the position, overlapped with the truss 3, on the top guide beam according to design requirements, and is fixed on the top guide beam and the wall surface through self-tapping screws, and the truss 3 is placed in the hanging piece and is fixed through the self-tapping screws and is generally erected at the position of a wall keel. The trusses are uniformly distributed on the top of the house at the intervals of 350-550 mm.

As shown in fig. 5, a floor slab is laid on a truss in a multi-story building, an upper wall body is hoisted in a top guide beam, a hanging piece 9 is arranged at the top of the upper wall body, a truss 3 is placed in the hanging piece, and the upper truss is vertical to a lower truss; and a roof panel 2 is laid on the truss. The purlines, the upper and lower wall boards and the floor slabs are connected together through the guide beams and the hanging boards without gaps.

Claims (5)

1. A light steel truss and a connecting member thereof are characterized by comprising a truss (3), connecting pieces (8) and hanging pieces (9), wherein the connecting pieces (8) connect a plurality of trusses to form a truss girder, and the hanging pieces (9) connect a wall body and the truss; the truss (3) comprises an upper chord (4), a lower chord (5), supporting rods (6) and web members (7), the upper end and the lower end of the truss are respectively the upper chord and the lower chord which are parallel to each other, and a plurality of supporting rods (6) and the web members (7) are arranged between the upper chord and the lower chord at intervals.

2. The light steel truss and the connecting member thereof as claimed in claim 1, wherein the connecting member (8) comprises a web (81), wing plates (82) and a tail plate (83), two wing plates (82) are vertically arranged on two sides of the web (81), the two wing plates are respectively inclined inwards, and the tail plate (83) is arranged at the bottom of the wing plates; the width of the connecting piece is slightly larger than the thickness of the upper chord.

3. The light steel truss and the connecting members thereof as claimed in claim 2, wherein the struts are vertically disposed between the upper and lower chords, and the web members are diagonally disposed between the adjacent struts.

4. The light steel truss and the connecting members thereof as claimed in claim 3, wherein the top end of the wall body is fixed with the hanging pieces (9), the truss (3) is placed in the hanging pieces and fixed by self-tapping nails, the truss is uniformly distributed on the top of the house, and the distance between the trusses is 350 mm and 550 mm; and a floor slab or a roof slab is laid on the truss.

5. The light steel truss and the connecting members thereof as claimed in claim 4, wherein the upper and lower chords are made of square steel pipe, channel steel or H-shaped steel, and the struts and the web members are made of steel bars, steel plates or angle steel.

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