CN212358584U

CN212358584U - Connecting piece, beam column connected node and beam column subassembly

Info

Publication number: CN212358584U
Application number: CN202021936932.4U
Authority: CN
Inventors: 李寒磊; 张超逸
Original assignee: Mayao Construction Technology Shanghai Co ltd
Current assignee: Mayao Construction Technology Shanghai Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-01-15
Anticipated expiration: 2030-09-07

Abstract

The utility model relates to a connecting piece for connect first tubular product and second tubular product, wherein, the connecting piece has: a first end section configured for connection with a first tubular; a second end section configured for connection with a second tubular; and an intermediate section between the first end section and the second end section, wherein the connecting piece is configured as a hollow profile open at the end face and has an opening on the circumferential side, which opening extends at least over the intermediate section. The connecting piece has the technical effect that the welding connection of two pipes is avoided. The utility model discloses still relate to beam column connected node and beam column subassembly.

Description

Connecting piece, beam column connected node and beam column subassembly

Technical Field

The utility model relates to a building and building field, more specifically relate to a connecting piece, a beam column connected node and a beam column subassembly.

Background

In the civil and construction fields, steel pipes are often used to form beam-column assemblies. In the prior art, the steel tubes used to form the cross beams are usually fixed to the steel tubes used to form the columns by welding at the construction site, thereby forming a cohesive connection between the two.

However, the above welding has a number of disadvantages. First, welding at a construction site requires many necessary welding aids, such as hoists, welders, scaffolding, etc., and requires a significant amount of labor to complete the weld. Secondly, the materials that can be joined using welding are limited, and most materials, except steel, cannot or are not suitable for welded connections. However, materials which are not suitable or capable of being welded together may also be advantageous as tube materials from the point of view of material costs and strength.

In addition, the concrete is usually poured into the steel pipes at the construction site after the steel pipes are connected, but the closed welding positions at the two ends of the beam steel pipe can prevent the concrete from being poured into the beam steel pipe. In order to ensure sufficient strength of the cross member, only the size of the cross member steel pipe, such as the wall thickness, can be increased, which leads to an increase in material cost.

In addition, in the prior art, the functions of preventing fire and corrosion of steel pipes are generally achieved by applying an anticorrosive material and a fireproof material to the outer surface of the steel pipe, respectively, i.e., the anticorrosive material is first applied to the outer surface of the steel pipe at a factory and then the fireproof material is applied thereto at a construction site. However, firstly, the application of the fireproofing material at the construction site increases the amount of work on site, which is generally inconvenient and adversely affects the progress of the construction compared to the work in the factory. Secondly, the current fireproof and anticorrosive materials are easily peeled off from the outer surface of the steel pipe based on the material characteristics. In the prior art, the surface of the steel pipe is usually coated with a surface coating agent and then subjected to a pre-treatment such as a screen cloth, which is time-consuming and costly.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to a connecting member, a beam-column connecting node, a beam-column assembly and a method of manufacturing the same, by which at least one of the above-mentioned technical problems occurring in the prior art can be solved.

According to an aspect of the present invention, the utility model provides a connecting piece, it is used for connecting first tubular product and second tubular product, wherein, the connecting piece has:

a first end section configured for connection with a first tubing,

a second end section configured for connection with a second tubular, an

A middle section located between the first end section and the second end section,

the connecting element is designed as a hollow profile which is open at the end and has an opening on the circumferential side, which opening extends at least over the intermediate section.

Advantageously, the first and second end sections are configured to form fit with the first and second pipes to be connected, respectively, such that the first and second end sections can be inserted inside or nested outside the first and second pipes, respectively.

Advantageously, the first and second end sections are circumferentially provided with through-holes for the passage of screws and/or rivets for screwing and/or riveting with the first and second pipes.

Advantageously, the screw is a bolt or screw and/or the rivet is a rivet.

Advantageously, the opening has a rectangular, circular or oval shape.

Advantageously, the opening extends over the entire length of the connecting piece.

Advantageously, the connecting piece has a substantially U-shaped cross section over its entire length.

Advantageously, the connecting element comprises a bottom wall and two side walls, each having at their free ends a respective flange portion extending towards each other, the opening being formed between the respective flange portions.

Advantageously, the first end section and the second end section each have a closed cross section over at least part of their length.

Advantageously, the opening extends between the closed cross sections.

Advantageously, the opening is oriented upwards in the use state of the connecting piece.

Advantageously, the opening on the middle section is dimensioned such that the installer's hand or tool can reach into the interior of the first and second end sections through the opening or opening portion on the middle section.

Advantageously, the size of the opening on the intermediate section is configured such that, in the use state of the connection, concrete can be introduced into the interior of the first and second pipes via the opening or the opening section on the intermediate section.

Advantageously, the first and second tubes are beam and column tubes, respectively, for a building.

According to the utility model discloses a further aspect, the utility model provides a beam column connected node, wherein, this beam column connected node includes:

one end section of a cross beam tube, which is designed as a first tube;

a joint of the column tubing for connection, which is fixed with one end to the column tubing and with its other end is directed toward the cross beam tubing, the column tubing being formed as a second tubing;

according to the connecting piece of the utility model,

wherein the upright column pipe is connected with the cross beam pipe through the connecting piece by the joint of the upright column pipe,

wherein the first end section of the connector is inserted or sleeved inside or outside the end section of the beam tubing, the second end section of the connector is inserted or sleeved inside or outside the joint of the column tubing, and the middle section of the connector is located between the end section of the beam tubing and the joint of the column tubing.

Advantageously, the first and second end sections of the connecting piece are configured on the circumferential side with through holes through which screws and/or rivets pass, and the end sections of the cross-beam tube and the joint of the column tube are configured with through holes corresponding to the through holes, through which the first and second end sections of the connecting piece are screwed and/or riveted with the end sections of the cross-beam tube and the joint of the column tube, respectively.

Advantageously, the first and second end sections of the connecting piece are at least partially spaced apart from the end sections of the cross beam tube and the joint of the column tube, respectively, in the transverse or radial direction.

Advantageously, the first and second end sections are rivet-free riveted with the end sections of the beam tube and the joint of the column tube, respectively.

Advantageously, the opening is open towards the top.

According to another aspect of the utility model, the utility model provides a beam column subassembly, wherein, this beam column subassembly includes at least one crossbeam tubular product, two stand tubular products and at least two according to the utility model discloses a beam column connected node, every beam column connected node include one of two tip sections of crossbeam tubular product, a joint of one of two stand tubular products, and one according to the utility model discloses a connecting piece.

Advantageously, the beam and column assembly is externally provided with a reinforced concrete structure comprising a steel framework and concrete.

Advantageously, the reinforcement frame comprises longitudinal reinforcements extending in the longitudinal direction of the associated cross-beam or column tube and transverse reinforcements fastened transversely to the longitudinal reinforcements.

Advantageously, the longitudinal bars are positioned by positioning means fixed on the outer surface of the cross beam tubes and the column tubes.

Advantageously, the positioning device is designed as a one-piece hollow plate which is placed over and fixed to the outer surface of the cross beam tube and the column tube.

Advantageously, the positioning device is fixed to the longitudinal inside of the two end sections of the cross-beam tube.

Advantageously, the positioning means are provided with through holes through which the longitudinal bars can be oriented substantially parallel to the respective cross beam or column tubes.

Advantageously, the positioning device is designed as a multi-part hollow plate or as a separate plate and can be moved directly from the side of the column or beam tube and fixed to its outer surface.

Advantageously, said fixing is performed by means of welding.

Advantageously, the cross-beam tube has concrete introduced in its interior via the opening of the connection piece.

Advantageously, the concrete fills only the two end regions of the interior of the beam tube, but not the middle region thereof.

Advantageously, the concrete fills the entire interior of the beam tube.

According to another aspect of the present invention, the present invention provides a method for manufacturing a beam column assembly according to the present invention, wherein the method comprises at least the following steps:

a) providing two upright tube materials with joints and at least one beam tube material;

b) forming a reinforced concrete structure outside the portion of the column pipe excluding the joint, and forming a reinforced concrete structure between both end sections thereof outside the beam pipe;

c) each end section of the beam pipe is connected with one joint of one of the column pipes by using the connecting piece according to the utility model respectively, thereby forming two beam-column connecting nodes according to the utility model;

d) introducing concrete into the interior of the column tube and into the interior of the cross beam tube through at least one of the openings of the two connectors;

e) and introducing concrete outside the connecting joint of the two beams and the columns to form a reinforced concrete structure.

Advantageously, said step a) further comprises: at least two positioning devices for positioning the longitudinal steel bars of the steel bar framework are sleeved and fixed on each upright post pipe and the cross beam pipe respectively.

Advantageously, said step c) further comprises: and connecting the first end section and the second end section of the connecting piece with the cross beam pipe and the upright post pipe respectively through screw connectors and/or riveting pieces.

Advantageously, steps a) and b) are carried out at the factory.

Advantageously, steps c) -e) are carried out on the construction site.

Advantages of the respective embodiments, as well as various additional embodiments, will become apparent to persons skilled in the art upon reading the following detailed description of the respective embodiments and by referring to the drawings set forth below.

Drawings

The invention will be further described with reference to the following figures and examples, in which:

figures 1a to 1c are respectively a perspective view, an end view and a plan view of a first embodiment of a connector according to the invention,

figures 2a to 2b are perspective views of a second and third embodiment of the connector of the invention,

fig. 3a to 3d are perspective views of different embodiments of the beam column assembly of the present invention, wherein the reinforced concrete structure of the outside thereof is not shown,

figures 4a to 4d are enlarged partial views of the beam column assembly of figures 3a to 3d,

fig. 5a is a perspective view of the beam-column assembly of fig. 3a, showing the rebar locating device and rebar frame outside thereof,

figure 5b is a perspective view of the rebar positioning device of figure 5a,

fig. 6 is a perspective view of the beam-column assembly of the present invention, showing a reinforced concrete structure outside thereof,

fig. 7 is a perspective view of the beam and column assembly of the present invention, wherein no concrete has been introduced outside the beam and column connection node.

Detailed Description

Various illustrative embodiments of the invention are described below. In the description, various systems, structures and devices are schematically depicted in the drawings for purposes of explanation only and not all features of an actual system, structure or device, such as a well-known function or structure, are not described in detail to avoid obscuring the present invention in unnecessary detail. It will of course be appreciated that in the development of any such actual implementation, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such implementation decisions, while complex and time consuming, are nevertheless routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

The terms and phrases used herein should be understood and interpreted to have a meaning consistent with the understanding of those terms and phrases by those skilled in the relevant art. No special definition of a term or phrase, i.e., a definition that is different from the ordinary and customary meaning as understood by those skilled in the art, is intended to be implied by consistent usage of the term or phrase herein. To the extent that a term or phrase is intended to have a special meaning, i.e., a meaning other than that understood by skilled artisans, such a special definition will be expressly set forth in the specification in a definitional manner that directly and unequivocally provides the special definition for the term or phrase.

Throughout the following description, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be interpreted in an open, inclusive sense, i.e., as "including but not limited to".

Throughout the description of this specification, references to the description of the terms "an embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "coupled," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the following description of the drawings, like reference numerals designate similar or identical elements throughout the several views and the description thereof. Furthermore, the various features of the drawings discussed below are not necessarily drawn to scale. Dimensions of various features and elements in the drawings may be expanded or reduced to more clearly illustrate the embodiments of the invention. For supplementary aspects of the teaching that can be directly recognized from the figures, reference is made to the relevant prior art. It is to be noted herein that various modifications and changes in form and detail with respect to the embodiments may be made without departing from the general inventive concept.

Fig. 1a to 2b show different exemplary embodiments of the connecting element 1', 1 "' of the invention. The utility model discloses a connecting piece 1', 1 ", 1'" can be used for treating two and connect the component and connect. In the present invention, the members to be connected may be, for example, pipes such as a beam pipe 2 and a column pipe 3 in the civil engineering and construction fields, but are not limited thereto.

Fig. 1a to 1c show a connecting element 1' according to a first embodiment of the invention.

As can be seen from fig. 1a and 1c, the connecting element 1' can have an elongated hollow profile structure. The connecting piece 1' can be open at its two end sides, i.e. can have openings which are open at both end sides.

As can be seen from fig. 1b, the connecting element 1 'can have a substantially U-shaped cross section over its entire length, so that the connecting element 1' can comprise a bottom wall 4 and two

side walls

5, 6 extending perpendicularly to the bottom wall 4 and lying opposite one another.

The two

side walls

5, 6 can each have a flange 7 at their free end. The two flange portions 7 can extend toward one another perpendicularly to the

side walls

5, 6 or parallel to the bottom wall 4. The two hem portions 7 may lie in the same plane. The two hem portions 7 may have the same width, but this is not mandatory, i.e. they may also have different widths, but the sum of the widths of the two hem portions 7 is less than the distance between the two

side walls

5, 6.

The design of the hem 7 is advantageous here. On the one hand, the connecting element 1' can be subjected to a greater bending moment on account of its flange portion 7. On the other hand, the connecting element 1' can be brought with its flange 7 into advantageous surface contact with the

pipes

2, 3 to be connected or with the concrete, whereby the load-bearing capacity is increased.

The two flange portions 7 can together enclose an opening 8 of the connecting piece 1' which is open on its peripheral side. The opening 8 may extend from one end side to the other end side of the connecting element 1'. The opening 8 may have a constant width over its length. In other embodiments, the opening 8 may also have a varying width over its length, for example the width may be greater in its middle portion than at its ends.

As can be seen from fig. 1a and 1c, the connection piece 1' can comprise a left-hand section 9, a middle section 10 and a right-hand section 11 from left to right. The left-hand section 9 and the right-hand section 11 can be connected to the two

pipes

2, 3 to be connected, respectively, while the middle section 10 can thus be located between the two

pipes

2, 3 to be connected.

In some embodiments, the outer contour of the left-hand section 9 and the right-hand section 11 can correspond to the inner contour of the two

pipes

2, 3 to be connected, or can be form-fitted thereto. Thereby, the left-hand section 9 and the right-hand section 11 can be inserted inside one end section of one of the two

pipes

2, 3 to be connected, see fig. 3a and 4a, respectively. The bottom wall 4 and the

side walls

5, 6 and the flange 7 of the left-hand and right-

hand sections

9, 11 can both bear against the inner surface of the

tubes

2, 3 or can be partially spaced apart from the inner surface of the

tubes

2, 3. For example, the

side walls

5, 6 or the hem 7 of the left and

right side sections

9, 11 may be spaced a distance from the inner surface of the

tubing

2, 3, so that there is a gap. The presence of the gap may facilitate the insertion of the connector into the

tubes

2, 3. The gap can be filled with concrete during the subsequent pouring of concrete, so that direct contact of the connecting piece 1' with the pipes 2, 3 (e.g. steel-to-steel contact) and the resulting frictional noise are avoided.

In some embodiments, the inner contour of the left-hand section 9 and the right-hand section 11 can correspond to the outer contour of the two

pipes

2, 3 to be connected, or can be form-fitted thereto. The left-hand section 9 and the right-hand section 11 can thus each be fitted on the outside of one end section of one of the two

pipes

2, 3 to be connected, see fig. 3b and 4 b. The base wall 4 and the

side walls

5, 6 and the flange 7 of the left-hand and right-

hand sections

9, 11 can both bear against the outer surface of the

tubes

2, 3 or can be partially spaced apart from the outer surface of the

tubes

2, 3. For example, the

side walls

5, 6 or the hem 7 of the left and

right side sections

9, 11 may be spaced a distance from the outer surface of the

tubing

2, 3, so that there is a gap. The presence of the gap may facilitate the nesting of the connector 1' onto the

tubes

In some embodiments, the inner contour of one of the left-hand section 9 and the right-hand section 11 can correspond to or can be form-fit with the outer contour of one of the two

pipes

2, 3 to be connected, while the outer contour of the other of the left-hand section 9 and the right-hand section 11 can correspond to or can be form-fit with the inner contour of the other of the two

pipes

2, 3 to be connected. That is, this design of the connection piece 1' is a combination of the two designs described above (not shown here). The left-hand section 9 and the right-hand section 11 can thus be respectively slipped onto or into one of the two

pipes

2, 3 to be connected.

The above three designs of the connecting piece 1' with respect to the members to be connected can be freely selected according to the actual requirements. With the first design, it has a greater bending and torsional strength at the connection site and does not hinder the subsequent treatment of the outer surface of the

pipes

2, 3, for example the application of concrete or the like, because the connection 1' is inside the

pipes

2, 3. With the second design, it is suitable not only for the connection of

pipes

2, 3, but also for the connection between solid components, since the connection 1' is clad outside the components. The third design is a combination of the first two designs. Of course, the present invention is not limited to the above three exemplary designs, as long as the left section 9 and the right section 11 of the connecting member 1' can be used to connect two members to be connected.

The above three designs of the connector 1' relative to the members to be connected each prevent relative movement of the two members in their transverse direction, i.e. limit two degrees of freedom of the two members in the transverse direction.

In order to prevent relative movements of the two members in the longitudinal direction, i.e. to limit the third degree of freedom of the two members in the longitudinal direction, an additional connection between the connector 1' and the members may be introduced.

For this purpose, the left-hand section 9 and the right-hand section 11 can be provided with through-holes 12, which through-holes 12 can be configured to be penetrated by screw connections 13, for example screws or bolts, by means of which the left-hand section 9 and the right-hand section 11 can be additionally screwed to the

tubes

2, 3. The through-opening 12 can also be configured to be penetrated by rivets, by means of which the left-hand section 9 and the right-hand section 11 can be riveted to the

tubes

2, 3. Of course, a combination of screwing and riveting is also possible.

The through holes 12 may be arranged on the

side walls

5, 6 of the left and

right side sections

9, 11, for example in rows. In the illustrated embodiment, 3 (rows) x2 (columns) of 6 through holes 12 are arranged in each of the

side walls

5, 6 of the left and

right side sections

9, 11. The through holes 12 can also be arranged on the bottom wall 4 of the left-hand section 9 and the right-hand section 11, for example also in rows. In the illustrated embodiment, 1 (row) x2 (column) or 2 through holes 12 are arranged in each of the bottom walls 4 of the left and

right side sections

9 and 11, respectively. Furthermore, the through-holes 12 can also be arranged on the folds 7 of the left-hand section 9 and the right-hand section 11, for example also in rows (not shown).

In addition to the above-described riveting with rivets, other mechanical connection methods such as rivetless riveting, that is, press-riveting, may be considered. These connections not only limit the third degree of freedom between the two members, but also assist in limiting the other two degrees of freedom in the transverse direction.

The left-hand section 9 and the right-hand section 11 can have the same length, but this is not mandatory and can vary depending on the circumstances, for example depending on the length of the

pipes

2, 3 to be connected themselves. The length of the intermediate section 10 may be in the range 60mm-90 mm.

Referring to fig. 4a and 4b, in the use or connected state of the connection piece 1', the left-hand section 9 and the right-hand section 11 each overlap one of the two

tubes

2, 3 in the longitudinal direction, while the middle section 10 is located between the two

tubes

2, 3 and does not overlap them. The opening portion of the opening 8 in the middle section 10 is important for the invention, since the interior of the

tubes

2, 3 or of the left-hand section 9 and the right-hand section 11 of the connecting element 1' can be accessed from the outside via this opening portion. Therefore, the opening portion can give other important functions to the connector 1' in addition to its connecting function. On the one hand, a tool (e.g. a wrench) assisting in screwing or riveting can project into the interior of the

pipes

2, 3 via this opening portion. On the other hand, a fluid material, such as concrete, may be poured into the interior of the

pipes

2, 3 through the opening portion to reinforce the

pipes

2, 3.

Fig. 2a and 2b show a connection 1 ", 1"' according to a second and third embodiment of the invention, respectively. Only the differences between the connectors 1 ", 1" 'and the connector 1' will be described below, while the description of the same parts will be omitted.

As can be seen from fig. 2a and 2b, for the connection 1 ", 1'", the opening 8 extends only over the middle section 10, while the left-hand section 9 and the right-hand section 11 are circumferentially closed, i.e. have a circumferentially closed square-shaped cross section. The connections 1 ", 1" 'may have a higher strength, in particular a torsional strength, than the connections 1', due to the substantially closed circumferential direction. But the connection 1' is more material-saving.

The use state of the connecting element 1 "can be seen in fig. 3c and 4c, and the use state of the connecting element 1'" can be seen in fig. 3d and 4 d. It can be seen from these figures that the openings 8 of the connectors 1 ", 1" 'are each located between the two

tubes

2, 3 without being covered, so that they can perform the above-described function as the openings 8 of the connectors 1'. Although not shown, the connection 1 ", 1" 'can also be fitted with its left-hand section 9 and right-hand section 11 over the outer surfaces of the

tubes

2, 3, as in the connection 1' in fig. 3b and 4b, and can also be fitted over one

tube

2, 3 with one of the two and inserted into the

other tube

3, 2 with the other of the two.

The connections 1 ", 1'" may differ only in the shape of their openings 8, i.e. the former is circular and the latter is oval. However, other shapes of the opening 8, such as rectangular, etc., are also contemplated herein, as long as the opening 8 can perform the above-described functions.

In terms of the material of the connecting element 1', 1 "' of the invention, it can be made of steel, for example. Since welding may not be performed, the connecting members 1', 1 "' may also be made of other metal or polymer composite materials, such as aluminum alloys, magnesium alloys, glass fiber reinforced plastics (glass reinforced plastics), etc., which are lighter than steel. The material of the connecting elements 1', 1 "' may vary depending on the actual application conditions, and an optimal compromise between mechanical requirements and material costs may be achieved by selecting the material of the connecting elements. Thus, for the connecting element 1', 1 "' of the invention, the material type can in principle be chosen freely.

Fig. 3a to 3d show four embodiments of the beam-column assembly 14 connected by the connecting members 1', 1 "', respectively, and for convenience of description, only the beam tube 2, the column tube 3, and the connecting members 1', 1"' of the beam-column assembly 14 are mainly shown. Fig. 4a to 4d show a close-up view of the beam and column assembly 14 in fig. 3a to 3d, respectively, to more clearly see the beam and column connection node 26 between the beams and columns, which may comprise one end section 16 of the cross beam tubing 2, one joint 15 and one connection 1', 1 "' of the column tubing 3.

Fig. 3a and 4a show a first embodiment of the beam-column assembly 14. Two column tubes 3 of the beam assembly 14 and a cross beam tube 2 located between them, which are connected via a connecting element 1', are visible here. The column tubes 3 and the beam tubes 2 may have a rectangular cross section matching the shape of the connector 1'. In other embodiments, the column tube 3 or the cross-beam tube 2 may have a circular or other cross-section, and the shape of the connecting member 1' may be changed accordingly.

Each column tube 3 may be provided with one or more joints 15 at approximately the middle for connecting the beam tubes 2. The joint 15 can be considered in the present invention as a part of the pillar tube 3. The joint 15 may also be made of tubing. In the embodiment shown, four joints 15 are provided on the four side walls of the pillar tube 3 at 90 ° angles one after the other. The number of joints 15 can vary with the number of cross beam tubes 2 to which the column tubes 3 are to be connected in total. The joint 15 may extend perpendicular to the column tubing 3 and be secured at one end to the column tubing 3 by welding or other mechanical connection means. The other end of the joint 15 is open and can be used for connection with the connector 1'. The joint 15 can be provided with a through-opening 12 for a screw 13 or rivet at the free end section.

The beam tube 2 may be open at both ends and may have a cross-sectional shape corresponding to the joint 15. The two

end sections

16, 17 of the cross member tube 2 can each be provided with a through-opening 12 for a screw 13 or rivet.

The left-hand end section 16 of the cross member tube 2 can be connected to a connection 15 of the left-hand column tube 3 via a connection 1'. This can be seen more clearly in the enlarged partial view shown in figure 4 a. The left section 9 of the connector 1' can be inserted inside the joint 15 and thus not visible, the right section 11 of the connector 1' can be inserted inside the cross beam tube 2 and thus not visible, while the middle section 10 of the connector 1' is located between the joint 15 and the cross beam tube 2 and thus visible. The opening 8 can be open at the upper side in the middle section 10 and can be accessed from the outside. As mentioned above, when installing the screw 13 or rivet, the installer can reach the inside of the joint 15 and the cross beam tube 2 or the inside of the left-hand section 9 and the right-hand section 11 of the connector 1' through the opening portion, so that the installer can easily pass the screw 13 or rivet through the through hole 12 and securely fasten it.

The right-hand end section 17 of the cross member tube 2 can be connected to a connection 15 of the right-hand column tube 3 via a further connection 1'. The right side connection mode can be the same as the left side connection mode, and the description is omitted here.

Fig. 3b to 3d show in combination with fig. 4b to 4d second, third and fourth embodiments of the beam column assembly 14. They may differ from the beam and column assembly 14 of the first embodiment only in the connection 1', 1 "' itself and in the manner in which the connection 1', 1"' is arranged relative to the members to be connected.

Specifically, in the second embodiment shown in fig. 3b and 4b, the connector 1' may be sleeved outside the joint 15 and the beam tube 2; in a third embodiment, shown in fig. 3c and 4c, the connector 1 "can be inserted inside the joint 15 and the beam tube 2; in a fourth embodiment, shown in fig. 3d and 4d, the connection 1 "' can be inserted inside the joint 15 and the beam tube 2.

Fig. 5a schematically shows a beam and column assembly 14 according to a first embodiment of the invention, in which the reinforcement positioning device 18 and the reinforcement frame 19, which are located outside the column tube 3 and the cross beam tube 2, can be seen. A rebar positioning device 18 (hereinafter "positioning device 18") can be secured to the outer surface of the column tubing 3 and the beam tubing 2. The reinforcement frame 19 may include longitudinal reinforcements 20 positioned by the positioning device 18 and transverse reinforcements 21 oriented perpendicular to the longitudinal reinforcements 20. Transverse reinforcement bars 21 may be secured thereto around the longitudinal reinforcement bars 20 to form a secure reinforcement frame 19.

Referring to fig. 5b, the positioning device 18 may be configured as a hollow plate having a central opening 22, the size and shape of the central opening 22 may correspond to the size and shape of the outer surfaces of the column tube 3 and the cross beam tube 2, such that the positioning device 18 may be sleeved over the outer surfaces of the column tube 3 and the cross beam tube 2 with the central opening 22. The fixing of the positioning device 18 to the outer surfaces of the column tube 3 and the cross-beam tube 2 can be performed by welding, but other suitable mechanical connection means such as bonding are also conceivable. After fixing, the faces of the hollow panels may be substantially perpendicular to the longitudinal direction of the column tubing 3 and the cross-beam tubing 2.

The positioning means 18 may be provided with through holes 23, each through hole 23 allowing one longitudinal reinforcement bar 20 to pass through. In the exemplary embodiment shown in fig. 5b, the positioning device 18 is provided with four through-openings 23 on two opposite sides thereof, one after the other. The number and arrangement of the through holes 23 on the positioning device 18 can be changed according to actual requirements. The axis of the through-opening 23 can be oriented perpendicular to the plate surface of the positioning device 18, so that the longitudinal reinforcement 20 passing through the through-opening 23 can be oriented parallel to the longitudinal axis of the associated tube.

In the illustrated embodiment, the positioning device 18 can be a hollow plate of one-piece construction. When the tube is attached, the hollow plate is fitted around a desired portion of the outer surface of the tube from one end of the

tube

2 or 3 and fixed.

In some embodiments, the positioning device 18 may also be a hollow plate constructed in multiple pieces, for example comprising two half-plates, which may be combined into one hollow plate. In some embodiments, the positioning device 18 may be any individual sheet, such as a rectangular sheet. These half plates or plates may not necessarily be placed over the

tubes

2, 3, but may be moved directly from the sides of the

tubes

2, 3 and fixed to the outer surfaces of the

tubes

2, 3.

In some embodiments, the positioning device 18 may be a block of greater thickness with respect to the plate.

A plurality of positioning devices 18 may be used in conjunction to position the longitudinal rebars 20 based on their own longer length. That is to say, the same longitudinal reinforcement 20 is passed through two or more positioning devices 18, which positioning devices 18 can be arranged at a distance from one another in the longitudinal direction of the crossbeam tube 2.

Fig. 6 schematically shows a beam column assembly 14 according to a first embodiment of the invention, wherein it can be seen that the steel framework 19 in fig. 5a has been filled and covered with concrete and thus forms a reinforced concrete structure 24 on the

pipes

2, 3.

As can be seen in fig. 6, the beam and column assembly 14 has formed a reinforced concrete structure 24, except for the unused joints 15 and end connections 25 of the column tubing 3. The still unused joints 15 and end connections 25 can subsequently also be connected to other beam or column tubes.

The utility model discloses in, the reinforced concrete structure 24 that forms in the outside of crossbeam tubular product 2 and stand tubular product 3 can have the function of anticorrosion and fire prevention. Thus, the reinforced concrete structure 24 can unexpectedly replace the corrosion and fire resistant materials applied in the prior art at the factory and construction site, respectively, without problems.

The thickness of the reinforced concrete structure 24 may be greater than the height of the positioning device 18 in the radial or lateral direction on the outer surface of the pipe, whereby the positioning device 18 may be completely submerged by the concrete. If the locating means 18 is exposed to the exterior of the concrete, the aesthetics of the beam may be compromised and the locating means 18 may be susceptible to corrosion. The thickness of the reinforced concrete structure 24 may be in the range of about 50mm to 60mm, but is not limited thereto as long as it can replace the existing fireproof anticorrosive coating to perform the fireproof and anticorrosive functions.

An exemplary method of manufacturing the beam and column assembly 14 of the present invention as shown in fig. 6 will be described with reference to fig. 7, which mainly includes the following steps:

at the factory, two pillar tubes 3 and one beam tube 2 are provided or manufactured, each pillar tube 3 comprising a joint 15, respectively, through-holes 12 being introduced on the joint 15 and on both

end sections

16, 17 of the beam tube 2, respectively;

at the factory, a plurality of positioning means 18 are respectively sleeved and welded to different portions of each of the pillar pipes 3 at a certain distance from each other, longitudinal rebars 20 are introduced through the positioning means 18, transverse rebars 21 are welded to the longitudinal rebars 20 to form a rebar framework 19, and finally concrete is introduced on the outer surfaces of sections of the pillar pipes 3 except for the joints 15 and the end connection portions 25 to partially form a reinforced concrete structure 24 on the outer surfaces of the pillar pipes 3;

at the factory, a plurality of positioning devices 18 are respectively sleeved and welded to different portions of each cross beam tube 2 between the two

end sections

16, 17 at a certain distance from each other, longitudinal rebars 20 are introduced through the positioning devices 18, transverse rebars 21 are welded to the longitudinal rebars 20 to form a rebar frame 19, and finally concrete is introduced on the outer surface of the section between the two

end sections

16, 17 of the cross beam tube 2 to partially form a reinforced concrete structure 24 on the outer surface of the cross beam tube 2;

referring to fig. 7, in the construction site, each

end section

16, 17 of the cross beam tube 2, to which no concrete has been applied, is connected to a respective joint 15 of a respective column tube 3 by means of a respective connecting element 1', 1 "', wherein the opening 8 or opening section in the connecting element 1', 1"' is open upwards, with the aid of the opening 8 or opening section a screw 13 or rivet is introduced into the through-opening 12 and fastened;

at the construction site, concrete is introduced into the interior of the cross beam tube 2 through the openings 8 or opening portions of the two connecting pieces 1', 1 "'. This step can be omitted if the beam tube 2 is short enough and already sufficient in itself to meet the strength requirements. The concrete introduced into the beam tube 2 may completely fill the beam tube 2, or may fill only both ends of the beam tube 2, with the middle portion not being filled. The latter can endow the beam with certain plasticity;

at the construction site, concrete is introduced on the outside at the connection joint 26 of the two beams and columns, so that the cross beam tube 2 together with the two joints 15 connected forms a cross beam member with a reinforced concrete structure 24 on the outside, see fig. 6.

The following summarizes, but is not limited to, various possible advantages of the beam and column assembly 14 and method of making the same. In addition, each technical scheme of the utility model can only have some of the advantages; for any of these advantages, the various aspects of the present invention may have the advantage entirely or only to some extent.

On the one hand, most, or even all, of the welding steps are carried out at the factory, while at the construction site there is no substantial or complete need for welding steps, which considerably reduces the expenditure in terms of time and costs associated with welding at the construction site.

On the other hand, replace and apply anticorrosive material and fire prevention material respectively in mill and job site among the prior art the utility model discloses in only use reinforced concrete structure 24 can realize anticorrosive fire prevention function simultaneously to most (be promptly except that beam column connected node 26 department) reinforced concrete structure 24 apply in the mill and have accomplished, and only need apply the concrete to beam column connected node 26 department at the job site, this further reduces the work load of job site. The utility model discloses a reinforced concrete structure 24 is difficult for droing from the tubular product surface.

Finally, based on the utility model discloses a welded connection has not only been abandoned to the use of connecting piece 1', 1 ", 1'", can apply the concrete in order to increase strength to crossbeam tubular product 2 inside via opening 8 on connecting piece 1', 1 ", 1'", can reduce the size of crossbeam tubular product 2 from this like the wall thickness, save material cost.

The invention may comprise any feature or combination of features disclosed herein either implicitly or explicitly or any generalisation thereof and is not to be limited in any way by the scope of the foregoing list. Any of the elements, features and/or structural arrangements described herein may be combined in any suitable manner.

The particular embodiments disclosed above are illustrative only, as the invention may be modified and practiced in different but equivalent manners apparent to those skilled in the art having the benefit of the teachings herein. It is therefore evident that the particular embodiments disclosed above may be altered or modified and all such variations are considered within the scope and spirit of the invention.

Claims

1. A coupling for coupling a first tubular to a second tubular, the coupling comprising:

a first end section configured for connection with a first tubing,

a second end section configured for connection with a second tubular, an

2. The connector according to claim 1, wherein the first and second end sections are configured to form fit with a first and second tubular to be connected, respectively, such that the first and second end sections can be inserted inside or sleeved outside the first and second tubular, respectively.

3. A connecting element according to claim 1 or 2, wherein the first end section and the second end section are circumferentially provided with through-holes for the passage of screws and/or rivets for screwing and/or riveting with the first and second pipes.

4. A connection piece according to claim 3, wherein said screw member is a bolt or screw and/or said rivet member is a rivet.

5. A connecting member according to claim 1 or 2, wherein said opening has a rectangular, circular or oval shape.

6. A connecting member according to claim 1 or 2, wherein said opening extends the entire length of the connecting member.

7. A connecting member according to claim 6 wherein said member has a substantially U-shaped cross-section throughout its length.

8. A connecting member according to claim 7 wherein said connecting member comprises a base wall and two side walls each having at their free ends flange portions extending towards each other, said opening being formed between the flange portions.

9. A connecting element according to claim 1 or 2, wherein the first end section and the second end section each have a closed cross section over at least part of their length.

10. A coupling according to claim 9, wherein the openings extend between the closed cross-sections.

11. A connecting element according to claim 1 or 2, wherein the opening is directed upwards in a use state of the connecting element.

12. A connector as claimed in claim 3, wherein the opening in the intermediate section is dimensioned such that an installer's hand or tool can extend into the interior of the first and second end sections through the opening or open portion in the intermediate section.

13. A connector according to claim 11, wherein the opening in the intermediate section is dimensioned such that, in a use state of the connector, concrete can be introduced into the interior of the first and second pipes via the opening or the open portion in the intermediate section.

14. A connector according to claim 1 or 2, wherein the first and second tubes are beam and column tubes, respectively, for a building.

15. A beam column connected node, characterized in that, this beam column connected node includes:

one end section of a cross beam tube, which is designed as a first tube;

a connection piece according to any one of claims 1 to 14,

16. A beam-column connection node according to claim 15, wherein the first and second end sections of the connecting member are circumferentially provided with through holes for the passage of screws and/or rivets, and the end sections of the cross beam tubing and the joints of the column tubing are provided with through holes corresponding to said through holes, through which the first and second end sections of the connecting member are screwed and/or riveted with the end sections of the cross beam tubing and the joints of the column tubing, respectively.

17. A beam-column connection node according to claim 15 or 16, wherein the first and second end sections of the connecting member are at least partially spaced apart from the end sections of the beam tubing and the joints of the column tubing, respectively, in a transverse or radial direction.

18. A beam-column connection node according to claim 15, wherein the first and second end sections are rivet free riveted to the end sections of the beam tubing and the joints of the column tubing, respectively.

19. A beam-column connection node according to claim 15 or 16, wherein said opening is open towards the top.

20. A beam column assembly comprising at least one beam tube, two column tubes and at least two beam column connection nodes according to any one of claims 15 to 19, each beam column connection node comprising one of the two end sections of the beam tube, a joint of one of the two column tubes, and a connector according to any one of claims 1 to 14.

21. The beam and column assembly according to claim 20, wherein the beam and column assembly is externally provided with a reinforced concrete structure comprising a reinforced frame and concrete.

22. A beam and column assembly according to claim 21, wherein said reinforcing framework includes longitudinal reinforcing bars extending in the longitudinal direction of the associated beam or column tubing and transverse reinforcing bars secured transversely to the longitudinal reinforcing bars.

23. A beam and column assembly according to claim 22, wherein said longitudinal reinforcing bars are positioned by positioning means secured to the outer surfaces of the beam and column tubes.

24. The beam and column assembly of claim 23 wherein said locating means is configured as a one-piece hollow plate that is nested and secured to the outer surfaces of the beam and column tubing.

25. A beam and column assembly according to claim 23, wherein said locating means are secured to the longitudinal inner sides of the two end sections of the beam tube.

26. A beam and column assembly according to claim 23, wherein said locating means is provided with through holes through which longitudinal reinforcing bars can be passed to be oriented substantially parallel to the respective beam or column tubing.

27. A beam and column assembly according to claim 23, wherein said locating means is constructed as a multi-piece hollow plate or separate plate and is capable of being moved laterally away from the column tubing or the beam tubing and secured to the outer surface thereof.

28. A beam and column assembly according to claim 24 or 27, wherein said fixing is by welding.

29. A beam column assembly according to claim 20, wherein said beam tube has concrete introduced therein through the opening of the connector.

30. A beam and column assembly according to claim 29, wherein said concrete fills only the two end regions of the interior of the beam tube, and not the middle region thereof.

31. A beam and column assembly according to claim 29, wherein said concrete fills the entire beam and tube interior.