Single-truss pipe truss

Abstract

The utility model relates to the technical field of building steel structures, in particular to a single-truss pipe truss which comprises a chord member. The tops of the inclined rods are hinged to the tops of the chord members; a plurality of clamping grooves are formed in the inclined rods and the chord members; the connecting piece comprises a left clamping ring and a right clamping ring, bodies of the left clamping ring and the right clamping ring are of semi-arc-shaped structures, and the left clamping ring and the right clamping ring are connected through a hinge piece; the right clamping ring further comprises a connecting part arranged on the outer periphery of the clamping ring and protrusions arranged on the inner periphery of the clamping ring and used for being clamped with the clamping grooves. The connecting pieces are sleeved on the chord members and the inclined rods; through holes are formed in the two ends of the web members, and the web members are connected with the connecting pieces arranged on the chord members and the diagonal members respectively. According to the utility model, the relative positions of all parts of the truss can be flexibly adjusted according to actual conditions, and the assembly flexibility and the construction convenience are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building steel structure, especially relates to a single-pipe truss. BACKGROUND

[0002] In the field of building structure, bridge construction and other engineering, truss is a commonly used load-bearing member, which can effectively transfer load and has good stability and carrying capacity. The traditional truss structure is usually composed of chord, web and diagonal, which are fixed together by welding or bolt connection.

[0003] However, the traditional truss structure has certain limitations. First, in the actual application process, due to the change of design requirements or construction conditions, it is often necessary to adjust the size and shape of the truss. The existing fixed connection mode is difficult to quickly and flexibly adapt to such changes, resulting in low construction efficiency and increasing project cost. Secondly, when the truss is subjected to external load, the fixed connection point often becomes a stress concentration area, which is prone to fatigue damage or even fracture, affecting the safety and service life of the whole structure. SUMMARY

[0004] In order to solve the problems in the background art, the utility model provides an improved single-pipe truss, which is characterized by using a connecting piece with adjustable position and web bars of different lengths. The utility model allows flexible adjustment of the relative position between the components of the truss according to the actual situation, improving the assembly flexibility and construction convenience.

[0005] The utility model solves the technical problems by adopting the following technical scheme: a single-pipe truss, a chord, a diagonal, the top of the diagonal is hinged to the top of the chord, a plurality of clamping grooves are arranged on the diagonal and the chord, a connecting piece, the left and right clamping rings are half-arc structures, the left and right clamping rings are connected by a hinge piece, the right clamping ring further includes a connecting part arranged on the outer periphery of the clamping ring and a protrusion arranged on the inner periphery of the clamping ring for clamping with the clamping grooves, the connecting piece is sleeved on the chord and the diagonal, a web bar, the web bar has a through hole penetrating through both ends, and the web bar is connected with the connecting piece arranged on the chord and the diagonal.

[0006] Further, the connecting part has two vertically extending side walls and a horizontal bottom wall, the two side walls and the bottom wall form a U-shaped notch, the two side walls are provided with a through limiting hole, and the locking sheath passes through the through hole on the side wall and limits the web bar.

[0007] Further, the hinge piece includes a hinge ring arranged on the upper end of the left clamping ring and a hinge column arranged on the upper end of the right clamping ring, and the hinge column is inserted into the hinge ring.

[0008] Further, the left and right clamping rings are further provided with locking portions; two through holes are arranged on the locking portions; and the fasteners are connected with the nuts through the two through holes respectively.

[0009] Further, a gasket is arranged between the fastener and the nut.

[0010] Further, the locking sheath is in a cylindrical shape.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] (1) The utility model discloses a connecting piece arranged on the chord and the inclined rod and adjustable position, so that the position of the web can be flexibly adjusted according to actual needs.

[0013] (2) The utility model discloses that the web of different lengths is connected with the connecting piece on the chord and the inclined rod, so that the size or shape of the truss can be conveniently changed to meet diversified design requirements and construction site condition restrictions.

[0014] (3) The utility model discloses that the left and right clamping rings adopt a semi-arc structure and are connected through the hinge piece, and the web is limited by the locking sheath, so that the connection between the components is stable and reliable, the loosening phenomenon caused by external force is reduced, and the stability and carrying capacity of the whole truss structure are enhanced.

[0015] (4) The utility model discloses that subsequent maintenance work is convenient, when some part appears damage, can dismantle and replace corresponding component quickly, reduced maintenance cost, prolonged life. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of a single-pipe truss of the utility model;

[0017] Figure 2 is a schematic view of one angle of a connecting piece of a single-pipe truss of the utility model;

[0018] Figure 3 is a front view of a connecting piece of a single-pipe truss of the utility model;

[0019] The marks of components in the drawings are as follows: 1, chord; 2, inclined rod; 3, clamping groove; 4, web; 5, left clamping ring; 6, right clamping ring; 7, hinge piece; 8, connecting portion; 9, protrusion; 10, side wall; 11, bottom wall; 12, limiting hole; 13, locking sheath; 14, hinge ring; 15, hinge column; 16, locking portion; 17, through hole; 18, fastener; 19, nut; 20, gasket. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Embodiment:

[0022] A single-pipe truss, as shown in Figs. Figure 1 , 2 and 3, comprises a chord 1, an inclined rod 2, the top of the inclined rod 2 being hinged to the top of the chord 1, a plurality of clamping grooves 3 being provided on the inclined rod 2 and the chord 1, the plurality of clamping grooves 3 being used for positioning a connecting piece, the connecting piece 3 comprising a left clamping ring 5 and a right clamping ring 6, the left clamping ring and the right clamping ring being semicircular in structure, the left clamping ring 5 and the right clamping ring 6 being connected by a hinge 7, the right clamping ring 5 further comprising a connecting portion 8 provided on the outer periphery of the clamping ring and a protrusion 9 provided on the inner periphery of the clamping ring and used for clamping with the plurality of clamping grooves, so that the connecting piece can be stably installed on the chord 1 or the inclined rod 2, the connecting piece 3 being sleeved on the chord 1 and the inclined rod 2 and clamped with the clamping grooves 3 on the chord 1 or the inclined rod 2 through the protrusion 9 on the right clamping ring 6, so as to achieve preliminary positioning, a web 4, the two ends of the web 4 being provided with through holes, the web 4 being connected with the connecting piece 3 provided on the chord 1 and the inclined rod 2 respectively.

[0023] As an implementation form, the connecting portion 8 has two vertically extending side walls 10 and a horizontal bottom wall 11, the two side walls 10 and the bottom wall 11 forming a U-shaped notch, the two side walls 10 being provided with through limiting holes 12, a locking sheath 13 passing through the limiting holes 12 on the side walls and the web 4 to limit the web, the locking sheath 13 being cylindrical in shape.

[0024] As an implementation form, the hinge 7 comprises a hinge ring 14 provided on the upper end of the left clamping ring and a hinge column 15 provided on the upper end of the right clamping ring, the hinge column 15 being inserted into the hinge ring 14.

[0025] As an implementation form, the left clamping ring 5 and the right clamping ring 6 are further provided with a locking portion 16, the locking portion 16 being provided with two through holes 17, a fastener 18 passing through the two through holes 17 and being connected with a nut 19 respectively, a gasket 20 being provided between the fastener 18 and the nut 19 to increase stability.

[0026] Through the above-mentioned embodiments, a single-pipe truss with high flexibility and stability is constructed. This truss is not only easy to assemble and adjust, but also can adapt to different engineering requirements, showing good application potential.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-bay tube truss, characterized in that: a chord; a diagonal, the top of the diagonal being hinged to the top of the chord; a plurality of clamping grooves being provided on the chord and the diagonal; a connecting piece, the connecting piece comprising a left clamping ring and a right clamping ring, the left clamping ring and the right clamping ring being semicircular in shape, the left clamping ring and the right clamping ring being connected by a hinge; the right clamping ring further comprising a connecting portion provided on the outer periphery of the clamping ring and a protrusion provided on the inner periphery of the clamping ring for clamping with the plurality of clamping grooves; 2. A single-bay tube truss according to claim 1, characterized in that: the connecting piece being sleeved on the chord and the diagonal; 3. A single-bay tube truss according to claim 2, wherein: a web, the web having a through hole penetrating through both ends, the web being connected to the connecting piece provided on the chord and the diagonal, respectively.

4. A single-bay tube truss according to claim 3, wherein: the connecting portion having two vertically extending side walls and a horizontal bottom wall, the two side walls and the bottom wall forming a U-shaped notch; a limiting hole penetrating through the two side walls, a locking sheath penetrating through the through hole on the side wall and limiting the web.

5. A single-bay tube truss according to claim 4, wherein: the hinge comprising a hinge ring provided on the upper end of the left clamping ring and a hinge column provided on the upper end of the right clamping ring, the hinge column being inserted into the hinge ring.

6. A single-bay tube truss according to claim 5, wherein: the left clamping ring and the right clamping ring further comprising a locking portion; the locking portion having two through holes penetrating through; a fastener being connected to a nut by penetrating through the two through holes, respectively. a gasket being provided between the fastener and the nut. the locking sheath being cylindrical in shape.

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