CN214615023U

CN214615023U - Truss

Info

Publication number: CN214615023U
Application number: CN202023278983.5U
Authority: CN
Inventors: 黄涛; 蔡宝林; 程春英; 陆波; 王小平
Original assignee: Hubei Bieyige Steel Structure Technology Development Co ltd
Current assignee: Hubei Bieyige Steel Structure Technology Development Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-05
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a truss, including lower chord, upper chord and web member. The lower chord and the upper chord are special-shaped steel pipes, each special-shaped steel pipe comprises a first member and a second member, the cross section of each first member is square or rectangular, one end of each first member is open, the cross section of each second member is n-shaped, the side walls of two sides of the opening of each first member are respectively connected with two ends of each second member, the second members protrude out of the outer surface of the corresponding first member, each web member comprises a first connecting plate and a second connecting plate, the first connecting rods and the second connecting plates are arranged on two sides of the corresponding second members, one ends of the first connecting plates and the second connecting plates are respectively in threaded connection with two sides of the corresponding second members of the upper chords, and the other ends of the first connecting plates and the second connecting plates are in threaded connection with two sides of the corresponding second members of the lower chord.

Description

Truss

Technical Field

The utility model relates to a steel construction technical field, in particular to truss.

Background

The truss is a supporting beam structure formed by connecting rod pieces through welding, riveting or bolts. The truss comprises an upper chord, a lower chord and a web member, and two ends of the web member are respectively connected with the upper chord and the lower chord. Wherein, the both ends of web member respectively with last chord member and lower chord member accessible welded mode fixed connection, also can be through earlier with U type spare cover last chord member and lower chord member and with last chord member and lower chord member threaded connection, then through U type spare and web member threaded connection's mode fixed connection again. However, the welded connection is fixed by welding, the welding quality is not easy to be guaranteed, and the welded truss is easy to deform and stress concentration is easy to form at the welded position. The U-shaped part is sleeved on the upper chord and the lower chord and is in threaded connection with the upper chord and the lower chord, more materials are needed to be consumed for the truss fixedly connected in a mode of threaded connection between the U-shaped part and the web member, the number of parts is large, and the U-shaped part is sleeved on the upper chord and the lower chord to cause the change of the overall dimensions of the upper chord and the lower chord and influence the normal use of the truss.

Accordingly, there is a need for improvements to existing trusses that avoid deformation of the trusses while reducing the amount of material used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a truss to solve the easy problem that warp and the material quantity is big of current truss.

In order to solve the technical problem, the utility model provides a truss, including lower chord, upper chord and web member, the lower chord with the upper chord is special-shaped steel pipe, special-shaped steel pipe includes first component and second component, the transversal one end open-ended square or rectangle of personally submitting of first component, the transversal "nearly" type of personally submitting of second component, the lateral wall of the both sides of the opening part of first component respectively with the both ends of second component are connected, just second component protrusion in the surface of first component sets up, the web member includes first connecting plate and second connecting plate, first connecting plate with the second connecting plate sets up the both sides of second component, first connecting plate with the one end of second connecting plate respectively with the upper chord the both sides threaded connection of second component, first connecting plate with the other end of second connecting plate with the lower chord the both sides threaded connection of second component .

Optionally, the first connecting plate is an angle steel or a channel steel, and the second connecting plate is an angle steel or a channel steel.

Optionally, the web member further comprises a connecting piece, the connecting piece is located between the first connecting plate and the second connecting plate, one side of the first connecting plate is fixedly connected with one side of the connecting piece, and one side of the second connecting plate is fixedly connected with the other side of the connecting piece.

Optionally, the connecting piece is a rectangular steel pipe or a square steel pipe.

Optionally, the first member includes a U-shaped portion and two transition portions, the transition portions are in a shape of a straight line, the two transition portions are respectively connected with two free ends of the U-shaped portion, and the other end of the transition portion is connected with two ends of the second member.

Optionally, the U-shaped portion, the second member and the two transition portions are integrally formed.

Optionally, the second member and the two transition portions are integrally formed, and the U-shaped portion is in threaded connection with the transition portions.

Optionally, the transition portion is embedded in the bottom of a groove formed by the U-shaped portion.

Optionally, the number of the upper chords is two, two one ends of the upper chords are connected, and the other ends of the upper chords are respectively connected with the two ends of the lower chords.

Optionally, the upper chord is arranged parallel to the lower chord.

The utility model provides a pair of truss has following beneficial effect:

when realizing that the web member respectively with upper chord member and lower chord member threaded connection, need not to adopt other spare part with web member and upper chord member and lower chord member threaded connection, but material saving simplifies connection process simultaneously to can avoid appearing adopting welded mode to lead to the truss to warp and form the problem of stress concentration in the welding department with web member and upper chord member and lower chord member threaded connection, in addition, also do not influence the overall dimension of lower chord member and upper chord member.

Drawings

Fig. 1 is a front view of a truss according to a first embodiment of the present invention;

fig. 2 is a perspective view of a truss according to a first embodiment of the present invention;

fig. 3 is a cross-sectional view of a truss according to a first embodiment of the present invention;

fig. 4 is a cross-sectional view of a truss according to a second embodiment of the present invention;

fig. 5 is a front view of a truss in the third embodiment of the present invention.

Description of reference numerals:

110-lower chord;

120-upper chord;

130-web member; 131-a first connection plate; 132-a second connecting plate;

140-a first member; 141-U-shaped part; 142-a transition portion; 150-a second member;

160-connecting piece.

Detailed Description

The truss proposed by the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example one

The embodiment provides a truss. Referring to fig. 1, fig. 1 is a front view of a first middle truss, fig. 2 is a perspective view of a first middle truss, and fig. 3 is a cross-sectional view of a first middle truss, which includes a lower chord 110, an upper chord 120 and a web member 130. The number of the upper chords 120 is two, one ends of the two upper chords 120 are connected, and the other ends of the two upper chords 120 are respectively connected with two ends of the lower chord 110. The lower chord 110 and the upper chord 120 are special-shaped steel pipes. The profiled steel pipe comprises a first member 140 and a second member 150, the cross section of the first member 140 is square or rectangular with one open end, the cross section of the second member 150 is n-shaped, the side walls of two sides of the open end of the first member 140 are respectively connected with two ends of the second member 150, and the second member 150 protrudes out of the outer surface of the first member 140. The web member 130 includes a first connection plate 131 and a second connection plate 132, the first connection plate 131 and the second connection plate are disposed on both sides of the second member 150, one end of the first connection plate 131 and one end of the second connection plate 132 are respectively in threaded connection with both sides of the second member 150 of the upper chord 120, and the other end of the first connection plate 131 and the other end of the second connection plate 132 are in threaded connection with both sides of the second member 150 of the lower chord 110. Thus, while the web member 130 is in threaded connection with the upper chord 120 and the lower chord 110 respectively, the web member 130 is not required to be in threaded connection with the upper chord 120 and the lower chord 110 by adopting other parts, so that the material can be saved, the connection process can be simplified, the problems of truss deformation and stress concentration at the welding position caused by a welding mode can be avoided by connecting the web member 130 with the upper chord 120 and the lower chord 110 by threads, and the overall dimensions of the lower chord 110 and the upper chord 120 are not influenced.

The first member 140 includes a U-shaped portion 141 and two transition portions 142, the transition portions are in a shape of a straight line, the two transition portions 142 are respectively connected to two free ends of the U-shaped portion 141, and the other ends of the transition portions 142 are connected to two ends of the second member 150. In this embodiment, the U-shaped portion 141, the second member 150, and the two transition portions 142 are integrally formed.

As shown in fig. 2, the first connecting plate 131 and the second connecting plate 132 are angle steels. In other embodiments, the first connecting plate 131 and the second connecting plate 132 may be channel steel, as long as they are section bars with an opening, and the present invention is not limited thereto.

Further, the web member 130 further includes a connecting member 160, the connecting member 160 is located between the first connecting plate 131 and the second connecting plate 132, one side of the first connecting plate 131 is fixedly connected to one side of the connecting member 160, and one side of the second connecting plate 132 is fixedly connected to the other side of the connecting member 160. The strength and rigidity of the web member 130, and the stability of the truss as a whole, can be enhanced by providing the connecting member 160.

In this embodiment, as shown in fig. 3, the connecting member 160 may be a rectangular steel pipe. In other embodiments, the connector 160 may be a square steel tube.

As shown in fig. 2, the width of the cross section of the connecting member 160 is equal to the distance between the first and

second connection plates

131 and 132. The length of the cross section of the connecting member 160 is smaller than the lengths of the first and second connecting

plates

131 and 132.

Example two

The embodiment provides a truss. The truss in the embodiment is different from the truss in the first embodiment in that the profiled steel pipes are different.

In this embodiment, referring to fig. 4, fig. 4 is a cross-sectional view of a truss in a second embodiment of the present invention, the second member 150 and two transition portions 142 are integrally formed, and the U-shaped portion 141 is in threaded connection with the transition portions 142. The transition portion 142 is preferably embedded in the bottom of the groove formed by the U-shaped portion 141, so that the strength and rigidity of the steel profile pipe can be improved.

EXAMPLE III

The embodiment provides a truss. The truss in the present embodiment is different from the truss in the first embodiment in that the shape of the truss in the present embodiment is different from the shape of the truss in the first embodiment.

Referring to fig. 5, fig. 5 is a front view of a third embodiment of the present invention, which includes a lower chord 110, an upper chord 120 and a web member 130. The upper chord 120 is disposed parallel to the lower chord 110. The lower chord 110 and the upper chord 120 are special-shaped steel pipes. The profiled steel pipe comprises a first member 140 and a second member 150, the cross section of the first member 140 is square or rectangular with one open end, the cross section of the second member 150 is n-shaped, the side walls of two sides of the open end of the first member 140 are respectively connected with two ends of the second member 150, and the second member 150 protrudes out of the outer surface of the first member 140. The web member 130 includes a first connection plate 131 and a second connection plate 132, the first connection plate 131 and the second connection plate are disposed on both sides of the second member 150, one end of the first connection plate 131 and one end of the second connection plate 132 are respectively in threaded connection with both sides of the second member 150 of the upper chord 120, and the other end of the first connection plate 131 and the other end of the second connection plate 132 are in threaded connection with both sides of the second member 150 of the lower chord 110.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. A truss is characterized by comprising a lower chord, an upper chord and web members, wherein the lower chord and the upper chord are special-shaped steel pipes, the special-shaped steel pipe comprises a first component and a second component, the cross section of the first component is square or rectangular with one open end, the cross section of the second component is of a 'Pi' shape, the side walls at two sides of the opening of the first component are respectively connected with two ends of the second component, the second component is arranged to protrude out of the outer surface of the first component, the web member comprises a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged on two sides of the second component, one end of the first connecting plate and one end of the second connecting plate are respectively in threaded connection with two sides of the second component of the upper chord, the other ends of the first connecting plate and the second connecting plate are in threaded connection with two sides of the second component of the lower chord.

2. The truss of claim 1 wherein the first connector plate is an angle or channel and the second connector plate is an angle or channel.

3. The truss of claim 1 wherein the web members further comprise a connector between the first connector plate and the second connector plate, one side of the first connector plate being fixedly connected to one side of the connector and one side of the second connector plate being fixedly connected to the other side of the connector.

4. The truss of claim 3 wherein the connectors are rectangular steel tubes or square steel tubes.

5. The truss of claim 1 wherein the first member includes a U-shaped portion and two transition portions, the transition portions being in the shape of a straight line, the two transition portions being connected to two free ends of the U-shaped portion, respectively, and the other ends of the transition portions being connected to two ends of the second member.

6. The truss of claim 5 wherein the U-shaped section, the second member and both of the transition sections are integrally formed.

7. The truss of claim 5 wherein said second member is integrally formed with both of said transition portions, said U-shaped portion being threadably connected to said transition portions.

8. The truss of claim 7 wherein the transition portion is embedded into the bottom of a groove formed by the U-shaped portion.

9. The truss of claim 1 wherein the number of the upper chords is two, one ends of the two upper chords are connected, and the other ends of the two upper chords are connected to both ends of the lower chords, respectively.

10. The truss of claim 1 wherein the upper chord is disposed parallel to the lower chord.