WO2022048388A1

WO2022048388A1 - Connecting member, beam-column connection joint, beam-column assembly and manufacturing method therefor

Info

Publication number: WO2022048388A1
Application number: PCT/CN2021/110852
Authority: WO
Inventors: 李寒磊; 张超逸
Original assignee: 孖垚建筑科技(上海)有限公司
Priority date: 2020-09-07
Filing date: 2021-08-05
Publication date: 2022-03-10
Also published as: CN114150763A

Abstract

The present invention relates to a connecting member for connecting a first pipe and a second pipe. The connecting member comprises: a first end section configured to be connected to the first pipe; a second end section configured to be connected to the second pipe; and a middle section located between the first end section and the second end section The connecting member is configured to be a hollow profile which is open at end sides; and the connecting member is provided, at a peripheral side, with an opening which at least extends in the middle section. The technical effect of the connecting member lies in avoiding the welding connection of two pipes. The present invention further relates to a beam-column connection joint, a beam-column assembly and a manufacturing method therefor.

Description

Connector, beam-column connection node, beam-column assembly and method of manufacturing the same

technical field

The invention relates to the fields of civil engineering and construction, and more particularly to a connector, a beam-column connection node, a beam-column assembly and a manufacturing method thereof.

Background technique

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

However, the above welding has many disadvantages. First of all, welding on the construction site will use a lot of necessary welding auxiliary facilities, such as hoisting machines, welding machines, scaffolding, etc., and it requires a lot of labor costs to complete the welding. Second, the materials that can be joined using welding are limited, and with the exception of steel, most materials cannot or are not suitable for welded connections. However, in terms of material cost and strength, materials that are not suitable or incapable of welding connections may also be advantageous as pipe materials.

In addition, the pouring of concrete into each steel pipe is usually carried out at the construction site after each steel pipe is connected. However, the closed welded joints at both ends of the beam steel pipe make it impossible to pour concrete into the beam steel pipe. In order to ensure sufficient strength of the beam, the size of the steel pipe of the beam, such as the wall thickness, can only be increased, which will lead to an increase in material cost.

In addition, in the prior art, the fire prevention and anti-corrosion functions of steel pipes are usually realized by applying anti-corrosion materials and fire-proof materials to the outer surface of the steel pipes respectively, that is, firstly applying anti-corrosion materials to the outer surfaces of the steel pipes in the factory, and then applying them at the construction site. Apply fireproof material to it. However, firstly, the application of fireproofing materials at the construction site increases the amount of site work, which is generally inconvenient compared to factory work and adversely affects the construction progress. Secondly, the current fire-proof and anti-corrosion materials are easily detached from the outer surface of the steel pipe due to their material properties. In this regard, in the prior art, the outer surface of the steel pipe is usually subjected to preliminary steps such as spraying an interface agent and playing a mesh cloth, but this is time-consuming and costly.

SUMMARY OF THE INVENTION

Therefore, the present invention aims to provide a connector, a beam-column connection node, a beam-column assembly and a manufacturing method thereof, by means of which at least one of the above-mentioned technical problems existing in the prior art can be solved.

According to one aspect of the present invention, the present invention provides a connecting piece for connecting a first pipe material and a second pipe material, wherein the connecting piece has:

a first end section configured for connection with the first pipe,

a second end section configured for connection with a second pipe, and

an intermediate section located between the first end section and the second end section,

In this case, the connecting piece is designed as a hollow profile which is open at one end, and the connecting piece has an opening on the peripheral side, which opening extends at least over the middle section.

Advantageously, the first and second end sections are configured to form a positive fit with the first and second pipes, respectively, to be connected, so that the first and second end sections can be respectively inserted into the first pipe and the second pipe or sleeved on the outside of the first pipe and the second pipe.

Advantageously, the first end section and the second end section are peripherally configured with through-holes through which screw and/or riveting elements pass through for screwing with the first and second pipes and/or riveting.

Advantageously, the threaded elements are bolts or screws, and/or the riveted elements are rivets.

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

Advantageously, the opening extends over the entire length of the connector.

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

Advantageously, the connecting piece comprises a bottom wall and two side walls, the two side walls respectively have hem portions on their free ends extending towards each other, the openings being formed between the hem portions.

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

Advantageously, the openings extend between closed cross-sections.

Advantageously, the opening is oriented upwardly or laterally in the use state of the connector.

Advantageously, the size of the opening on the intermediate section is such that an installer's hand or tool can reach inside the first and second end sections through the opening or opening portions in the intermediate section.

Advantageously, the openings on the intermediate section are dimensioned such that, in the use state of the connector, concrete can be introduced into the interior of the first and second pipes via the openings or opening portions in the intermediate section.

Advantageously, the first and second pipes are beam pipes and column pipes, respectively, for buildings.

According to another aspect of the present invention, the present invention provides a beam-column connection node, wherein the beam-column connection node comprises:

an end section of the cross member tube, the cross member tube being formed as the first tube;

a connection of the column pipe for connection, which is fastened with one end to the column pipe and points with its other end towards the cross member pipe, which is formed as the second pipe;

According to the connector of the present invention,

Wherein, the column pipe is connected with the beam pipe by its joint through the connecting piece,

Wherein, the first end section of the connector is inserted or sheathed inside or outside the end section of the beam pipe, the second end section of the connector is inserted or sheathed inside or outside the joint of the column pipe, and the connection The middle section of the piece is located between the end section of the beam tube and the joint of the column tube.

Advantageously, the first end section and the second end section of the connecting piece are circumferentially formed with through-holes through which the screw and/or riveting piece passes, and the end sections of the cross member tube and the column tube are The joint is configured with through holes corresponding to the through holes, through which the first end section and the second end section of the connecting piece are connected with the joints of the end section of the beam pipe and the column pipe, respectively Screwing and/or riveting.

Advantageously, the first end section and the second end section of the connecting piece are respectively at least partially spaced at a distance in the transverse or radial direction from the end section of the cross member tube and the joint of the column tube.

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

Advantageously, the opening is open upwardly or laterally.

According to another aspect of the present invention, the present invention provides a beam-column assembly, wherein the beam-column assembly comprises at least one cross-beam tube, two column tubes, and at least two beam-column connection nodes according to the present invention, each beam-column The connecting node comprises one of the two end sections of the cross member pipe, a joint of one of the two column pipes, and a connecting piece according to the invention.

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

Advantageously, the rebar frame comprises longitudinal reinforcement bars extending in the longitudinal direction of the associated beam pipe or column pipe material and transverse reinforcement bars fixed transversely to the longitudinal reinforcement.

Advantageously, the longitudinal reinforcement is positioned by a positioning device, and the positioning device is fixed on the outer surfaces of the beam pipe and the column pipe.

Advantageously, the positioning device is constructed as a one-piece hollow plate that is sheathed and fastened to the outer surfaces of the beam tube and the column tube.

Advantageously, the positioning means are fixed on the longitudinal inner side of the two end sections of the cross member tube.

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

Advantageously, the positioning device is constructed as a multi-part hollow panel or as a separate panel and can be moved directly from the side of the upright or beam tube and fixed on its outer surface.

Advantageously, the fixing is carried out by welding.

Advantageously, the beam tube has concrete in its interior that is introduced via the opening of the connector.

Advantageously, the concrete fills only the two end regions inside the beam tube, but not its middle region.

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) Provide two upright pipes and at least one beam pipe with joints respectively;

b) forming a reinforced concrete structure on the outside of the part of the column pipe except for the joint, and forming a reinforced concrete structure on the outside of the beam pipe, between its two end sections;

c) connecting each end section of the cross-beam tube with a joint of one of the column tubes using a connector according to the invention, respectively, so as to form two beam-column connection nodes according to the invention;

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

e) Concrete is introduced on the outside of the two beam-column connection nodes to form a reinforced concrete structure.

Advantageously, the step a) further comprises: assembling and fixing at least two positioning devices for positioning the longitudinal steel bars of the steel bar frame on each column pipe and the beam pipe respectively.

Advantageously, the step c) further comprises: connecting the first end section and the second end section of the connecting piece with the beam pipe and the column pipe respectively by screwing and/or riveting.

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 those skilled in the art by reading the following detailed description of the respective embodiments with reference to the accompanying drawings listed below.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and Examples, wherein:

Figures 1a to 1c are a perspective view, an end view and a top view, respectively, of a first embodiment of the connector of the present invention,

Figures 2a to 2d are perspective views of second, third, fourth and fifth embodiments of the connector of the present invention, respectively,

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

Figures 4a to 4d are partial enlarged views of the beam-column assembly in Figures 3a to 3d,

Fig. 5a is a perspective view of the beam-column assembly of Fig. 3a showing the rebar locator and rebar frame on the outside thereof,

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

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

Figure 7 is a perspective view of the beam-column assembly of the present invention without concrete being introduced outside the beam-column connection node.

detailed description

Various illustrative embodiments of the invention are described below. In this specification, for the purpose of explanation only, various systems, structures and devices are schematically depicted in the drawings without depicting all features of actual systems, structures and devices, such as well-known functions or structures Unnecessary detail is avoided to obscure the invention. Of course, it should be understood that in any practical application, many implementation-specific decisions need to be made to achieve the developer's or user's specific goals, and to comply with system-related and industry-related constraints, which specific goals may vary from application to application. different. Furthermore, it should be appreciated that such implementation decisions, while complex and time-consuming, would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this application.

The terms and phrases used herein should be understood and interpreted to have the meaning consistent with the understanding of those terms and phrases by those skilled in the relevant art. Consistent usage of a term or phrase herein is not intended to imply a particular definition of the term or phrase, ie, a definition that is different from its ordinary and customary meaning as understood by those skilled in the art. For terms or phrases that are intended to have a special meaning, i.e., a meaning different from that understood by the skilled artisan, such special definitions will be explicitly set forth in the specification by way of definition, giving direct and unambiguous reference to the term or phrase. special definition.

Throughout the specification below, the word "including" and variations such as "comprising" are to be construed in an open, inclusive sense, ie, as "including but not limited to," unless the context requires it.

Throughout the description of this specification, references to the terms "an embodiment," "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., are intended to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present 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 should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "coupled", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection, or It is a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the following description of the drawings, the same reference numbers refer to similar or identical elements throughout the drawings and the description. Furthermore, the various features of the drawings discussed below are not necessarily drawn to scale. The dimensions of various features and elements in the figures may be expanded or reduced to more clearly illustrate embodiments of the invention. See the relevant prior art for supplementary aspects of the teachings that are directly identifiable from the drawings. It is to be noted here that various modifications and changes in the form and details of the embodiments can be made without departing from the general idea of the present invention.

Figures 1a to 2b show different exemplary embodiments of the connector 1', 1", 1"' of the invention. The connector 1', 1", 1"' of the present invention can be used to connect two components to be connected. In the present invention, the members to be connected may be, for example, pipes, such as beam pipes 2 and column pipes 3 in the field of civil engineering and construction, but are not limited thereto.

Figures 1a to 1c show a connector 1' according to a first embodiment of the invention.

As can be seen from FIGS. 1 a and 1 c , the connecting piece 1 ′ can have an elongated hollow profile structure. The connecting piece 1 ′ can be open on its two end sides, ie can have openings that are open on both end sides.

As can be seen from Figure 1b, the connecting piece 1' can have a substantially U-shaped cross-section over its entire length, so that the connecting piece 1' can comprise a bottom wall 4 and two side walls extending perpendicular to the bottom wall 4 and facing each other 5.6.

The two side walls 5, 6 can each have a fold 7 at their free ends. The two flanges 7 can extend towards each other perpendicularly to the side walls 5 , 6 or parallel to the bottom wall 4 . The two hem portions 7 may lie on the same plane. The two folded edge portions 7 may have the same width, but this is not mandatory, that is, they may also have different widths, but the sum of the widths of the two folded edge portions 7 is smaller than that between the two side walls 5 and 6 the distance.

The design of the hem 7 is advantageous here. On the one hand, the connecting piece 1 ′ can withstand greater bending moments due to its folded edge 7 . On the other hand, the connecting piece 1 ′ can achieve an advantageous surface contact with its folded edge 7 with the pipes 2 , 3 to be connected or with the concrete, thereby increasing the load-bearing capacity.

The two flanges 7 can together enclose an opening 8 of the connecting piece 1 ′ which is open on its peripheral side. The opening 8 can extend from one end side of the connecting piece 1 ′ to the other end side. 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 at its middle portion may be greater than the width at its ends.

As can be seen from FIGS. 1 a and 1 c , the connecting piece 1 ′ may comprise a left side section 9 , a middle section 10 and a right side section 11 from left to right. The left-hand section 9 and the right-hand section 11 can each be connected to the two pipes 2 , 3 to be connected, while the middle section 10 can thus be located between the two pipes 2 , 3 to be connected.

In some embodiments, the outer contours of the left-hand section 9 and the right-hand section 11 can correspond to the inner contours of the two pipes 2 , 3 to be connected, or can be form-fitted therewith. Thereby, the left-hand section 9 and the right-hand section 11 can each be inserted inside an end section of one of the two pipes 2 , 3 to be connected, see FIGS. 3 a and 4 a . The bottom wall 4 and the side walls 5, 6 of the left-hand section 9 and the right-hand section 11, as well as the folded edge 7, can either rest on the inner surfaces of the pipes 2, 3 or partially The inner surfaces are spaced apart by a distance. For example, the side walls 5, 6 or the hem portion 7 of the left and right sections 9, 11 may be spaced a distance from the inner surfaces of the tubes 2, 3 so that there is a gap. The presence of the gap can facilitate the insertion of the connector into the pipes 2 , 3 . The gaps can be filled with concrete during the subsequent pouring of concrete, thus avoiding direct contact of the connecting piece 1 ′ with the pipes 2 , 3 (eg steel-to-steel contact) and the resulting frictional noise.

In some embodiments, the inner contours of the left-hand section 9 and the right-hand section 11 can correspond to the outer contours of the two pipes 2 , 3 to be connected, or can be form-fitted therewith. Thereby, the left-hand section 9 and the right-hand section 11 can each be fitted outside an end section of one of the two pipes 2 , 3 to be connected, see FIGS. 3 b and 4 b . The bottom wall 4 and the side walls 5, 6 of the left-hand section 9 and the right-hand section 11 as well as the folded edge 7 can either rest on the outer surfaces of the pipes 2, 3 or partially the outer surfaces are spaced a distance apart. For example, the side walls 5, 6 or the hem portion 7 of the left and right side sections 9, 11 may be spaced a distance from the outer surfaces of the tubes 2, 3 so that there is a gap. The presence of the gap can facilitate the fitting of the connector 1 ′ onto the pipes 2 , 3 . The gaps can be filled with concrete during the subsequent pouring of concrete, thus avoiding direct contact of the connecting piece 1 ′ with the pipes 2 , 3 (eg steel-to-steel contact) and the resulting frictional noise.

In some embodiments, the inner contour of one of the left-hand section 9 and the right-hand section 11 can correspond to the outer contour of one of the two pipes 2 , 3 to be connected, or can be form-fitted therewith, while the left The outer contour of the other of the section 9 and the right-hand section 11 can correspond to the inner contour of the other of the two pipes 2 , 3 to be connected, or can be form-fitted therewith. That is, this design of the connector 1' is a combination of the two above-mentioned designs (not shown here). Thereby, the left-hand section 9 and the right-hand section 11 can be respectively fitted over or inserted into one of the two pipes 2 , 3 to be connected.

The above three designs of the connector 1 ′ relative to the components to be connected can be freely selected according to actual needs. For the first design, it has greater flexural strength and torsional strength at the joint, and because the joint 1' is inside the pipes 2, 3, it will not hinder the subsequent treatment of the outer surfaces of the pipes 2, 3, such as applying concrete Wait. For the second design, it is suitable not only for the connection of the pipes 2, 3, but also for the connection between solid components, since the connector 1' wraps around 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 connector 1 ′ can be used to connect the two components to be connected, all designs are included.

The above three designs of the connecting piece 1 ′ with respect to the members to be connected can all prevent the relative movement of the two members in the lateral direction thereof, that is, limit the two degrees of freedom of the two members in the lateral direction.

In order to prevent the relative movement of the two members in the longitudinal direction, ie to limit the third degree of freedom of the two members in the longitudinal direction, an additional connection means between the connecting piece 1' and the members can be introduced.

For this purpose, the left-hand section 9 and the right-hand section 11 can be provided with through-holes 12 which can be designed to be passed through by screwing elements 13 , such as screws or bolts, by means of which the left-hand section can be inserted The section 9 and the right-hand section 11 are additionally screwed to the pipes 2 , 3 . The through hole 12 can also be designed to be passed through by a riveting element, by means of which the left-hand section 9 and the right-hand section 11 can be riveted to the pipes 2 , 3 . Of course, a combined use of screwing and riveting is also possible.

The through holes 12 can be arranged on the side walls 5 , 6 of the left-hand section 9 and the right-hand section 11 , for example in a row. In the illustrated embodiment, 3 (rows)×2 (columns)=6 through holes 12 are arranged on each side wall 5 , 6 of the left side section 9 and the right side section 11 , respectively. 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 , eg also in rows. In the illustrated embodiment, 1 (row) x 2 (column)=2 through holes 12 are arranged on each bottom wall 4 of the left side section 9 and the right side section 11, respectively. Furthermore, the through holes 12 can also be arranged on the hem 7 of the left-hand section 9 and the right-hand section 11 , eg also in rows (not shown).

In addition to the above-mentioned riveting by means of rivets, other mechanical connection methods such as rivetless riveting, that is, punch riveting, can also be considered. These connections can not only limit the third degree of freedom between the two members, but also help limit the other two degrees of freedom in the lateral direction.

The left-hand section 9 and the right-hand section 11 can have the same length, but this is not mandatory, but can vary according to the actual situation, eg according to the own length of the pipes 2, 3 to be connected. The length of the intermediate section 10 may be in the range of 60mm-90mm.

Referring to Figures 4a and 4b, in the use or connected state of the connector 1', the left section 9 and the right section 11 respectively overlap with one of the two pipes 2, 3 in the longitudinal direction, while the middle The section 10 is located between the two pipes 2, 3 without overlapping them. Here, the opening of the opening 8 on the central section 10 is important for the invention, since via this opening the interior of the pipes 2 , 3 or the left-hand section 9 and the right-hand section of the connecting piece 1 ′ can be accessed from the outside. Inside the side section 11 . Therefore, the opening portion can impart other important functions to the connecting member 1' in addition to its connecting function. On the one hand, a tool (such as a wrench) for assisting screwing or riveting can be inserted into the interior of the pipes 2 , 3 through the opening portion. On the other hand, a fluid material, such as concrete, can be poured into the interior of the pipes 2, 3 via the opening portion in order to strengthen the pipes 2, 3.

Figures 2a and 2b show connecting elements 1", 1"' according to the second and third embodiments of the present invention, respectively. Next, only the differences between the connecting parts 1", 1"' and the connecting part 1' will be described, and redundant descriptions of the same parts will be omitted.

As can be seen from Figures 2a and 2b, for the connectors 1", 1"', the opening 8 extends only on the top wall of the middle section 10, while the left section 9 and the right section 11 are circumferentially closed , that is, it has a circumferentially closed mouth-shaped cross-section. Compared to the connecting elements 1 ′, the connecting elements 1 ″, 1 ″′ can have a higher strength, in particular torsional strength, due to the substantially closed circumferential direction. However, the connecting piece 1' saves more material.

The use state of the connector 1" can refer to Fig. 3c and Fig. 4c, and the use state of the connector 1"' can refer to Fig. 3d and Fig. 4d. As can be seen from these figures, the openings 8 of the connectors 1", 1"' are located between the two pipes 2, 3 without being covered, so they can perform the same function as the openings 8 of the connector 1'. Although not shown, the connecting elements 1 ″, 1 ″' can also be fitted over the pipes 2 , 3 with their left-hand section 9 and right-hand section 11 , like the connecting element 1 ′ in FIGS. 3 b and 4 b . On the surface, it is also possible to insert one of the two pipes 2, 3 outside one pipe material 2, 3, and the other of the two to be inserted into the other pipe material 3, 2.

The connection pieces 1", 1"' may differ only in the shape of their openings 8, ie the former is circular and the latter is oval. However, other shapes of the opening 8, such as a rectangle, etc., can also be considered here, as long as the opening 8 can achieve the above-mentioned functions.

Figures 2c and 2d show connecting elements 1"", 1""' according to fourth and fifth embodiments of the present invention, respectively. Next, only the differences between the connecting pieces 1", 1""' and the connecting pieces 1", 1"' will be described, and redundant descriptions of the same parts will be omitted.

As can be seen from FIGS. 2 c and 2 d , the openings 8 extend only on the side walls of the intermediate section 10 for the connecting pieces 1 ″″, 1 ″″′.

Of course, it is also conceivable to provide openings 8 if necessary both on the top wall of the middle section 10 and on the side walls of the middle section 10 .

With regard to the material of the connecting element 1', 1", 1"', 1"", 1""' according to the invention, it can be made of steel, for example. Since welding is not required, the connecting pieces 1', 1", 1"', 1"", 1""' can also be made of other metals or polymer composite materials, such as aluminum alloys and magnesium alloys that are lighter than steel. And glass fiber reinforced plastic (glass fiber reinforced plastic) and so on. The material of the connectors 1', 1", 1"', 1"", 1""' can be changed according to the actual application conditions, and the best coordination between the mechanical requirements and the material cost can be achieved by selecting the material of the connector. Thus, for the connecting elements 1', 1", 1"', 1"", 1""' according to the invention, the material type can in principle be freely selected.

Figures 3a to 3d show four embodiments of beam-column assemblies 14 connected by connecting pieces 1', 1", and 1"' respectively. For the convenience of description, only the beam pipe 2 of the beam-column assembly 14 is mainly shown. , Column pipe 3 and connectors 1', 1", 1"'. Figures 4a to 4d show enlarged partial views of the beam column assembly 14 of Figures 3a to 3d, respectively, to more clearly see the beam column connection node 26 between the beam columns, which may include one end region of the beam tube 2 Section 16, a joint 15 of the upright pipe 3 and a connecting piece 1', 1", 1"'.

Figures 3a and 4a show a first embodiment of the beam column assembly 14. The two column pipes 3 of the beam-column assembly 14 and a transverse beam pipe 2 connected between them via the connecting piece 1 ′ can be seen here. The column pipe 3 and the beam pipe 2 may have a rectangular cross-section matching the shape of the connector 1'. In other embodiments, the column pipe material 3 or the beam pipe material 2 may also have a circular or other shape of cross section, and the shape of the connecting piece 1 ′ should also be changed accordingly.

Each upright pipe 3 may be provided with one or more joints 15 for connecting the beam pipes 2 at approximately the middle. The joint 15 can be regarded as a part of the column pipe 3 in the present invention. The joint 15 may also consist of a pipe material. In the embodiment shown, four joints 15 are arranged one after the other at an angle of 90° on the four side walls of the upright pipe 3 . However, the number of joints 15 can vary with the total number of beam pipes 2 to be connected with the upright pipes 3 . The joint 15 may extend perpendicular to the upright pipe 3 and be fixed to the upright pipe 3 with one end thereof, and the fixation may be realized by welding or other mechanical connection. The other end of the connector 15 is open and can be used to connect with the connector 1'. The connector 15 can be provided with a through hole 12 for a screw connection 13 or a riveted part on the free end section.

The beam pipe 2 can be open at both ends and its cross-sectional shape can correspond to the joint 15 . The two end sections 16 , 17 of the cross member tube 2 can each be provided with through-holes 12 for screw connections 13 or rivets.

The cross member pipe 2 can be connected with its left end section 16 via a connecting piece 1 ′ to a connection 15 of the left column pipe 3 . This can be seen more clearly from the enlarged partial view shown in Figure 4a. The left-hand section 9 of the connection piece 1 ′ can be inserted inside the joint 15 and is therefore not visible, the right-hand section 11 of the connection piece 1 ′ can be inserted inside the crossmember tube 2 and is therefore not visible, and the middle section of the connection piece 1 ′ 10 is located between the joint 15 and the beam tube 2 and is thus visible. The opening portion of the opening 8 on the middle section 10 can be open upwards and can be accessed from the outside. As mentioned above, when installing the screw 13 or riveting element, the installer can access the interior of the joint 15 and the cross member pipe 2 or the left and right side sections 9 and 9 of the connecting piece 1 ′ via this opening. 11, so the installer can easily pass the screw 13 or the rivet through the through hole 12 and fasten it firmly.

The cross member tube 2 can be connected with its right end section 17 via a further connecting piece 1 ′ to a connection 15 of the right column tube 3 . The connection method on the right side can be the same as that on the left side, which will not be repeated here.

Figures 3b to 3d, in conjunction with Figures 4b to 4d, illustrate second, third and fourth embodiments of the beam column assembly 14. They may differ from the beam-column assembly 14 of the first embodiment only in the connection pieces 1', 1", 1"' themselves and the arrangement of the connection pieces 1', 1", 1"' relative to the members to be connected.

Specifically, in the second embodiment shown in Figures 3b and 4b, the connecting piece 1' can be sheathed outside the joint 15 and the beam pipe 2; in the third embodiment shown in Figures 3c and 4c, the connecting piece 1' ” can be inserted into the joint 15 and the inside of the beam pipe 2; in the fourth embodiment shown in FIG. 3d and FIG.

Figure 5a schematically shows a beam-column assembly 14 according to a first embodiment of the invention, wherein the reinforcement positioning means 18 and the reinforcement frame 19 outside the column tubes 3 and the beam tubes 2 can be seen. The reinforcing bar positioning device 18 (hereinafter referred to as the “positioning device 18 ”) can be fixed on the outer surfaces of the column pipe 3 and the beam pipe 2 . The rebar frame 19 may include longitudinal bars 20 positioned by the positioning device 18 and transverse bars 21 oriented perpendicular to the longitudinal bars 20 . The transverse reinforcement bars 21 can be fastened to it around the longitudinal reinforcement bars 20 to form a solid reinforcement frame 19 .

Referring to Fig. 5b, the positioning device 18 may be configured as a hollow plate having a central opening 22 whose size and shape may correspond to the size and shape of the outer surfaces of the upright tube 3 and the beam tube 2, so that the positioning device 18 may be The central opening 22 is sleeved on the outer surfaces of the column pipe 3 and the beam pipe 2 . The fixing of the positioning device 18 on the outer surfaces of the column pipe 3 and the beam pipe 2 can be performed by welding, and of course other suitable mechanical connection methods such as bonding can also be conceivable. After fixing, the board surface of the hollow board may be substantially perpendicular to the longitudinal direction of the column pipe 3 and the beam pipe 2 .

The positioning device 18 may be provided with through holes 23, each through hole 23 through which a longitudinal steel bar 20 may pass. In the embodiment shown in FIG. 5 b , the positioning device 18 is provided with four through holes 23 one after the other on its two opposite sides, respectively. However, the number and arrangement of the through holes 23 on the positioning device 18 can be changed according to actual needs. The axis of the through hole 23 can be oriented perpendicular to the plate surface of the positioning device 18, whereby the longitudinal reinforcement bars 20 passing through the through hole 23 can be oriented parallel to the associated longitudinal axis of the pipe.

In the embodiment shown, the positioning device 18 may be a hollow plate constructed in one piece. At the time of installation, the hollow plates are fitted over desired positions on the outer surfaces of the pipes from one end of the pipes 2 and 3 and fixed.

In some embodiments, the positioning device 18 can also be a multi-piece hollow plate, eg, comprising two half plates, which can be combined into a hollow plate. In some embodiments, the positioning device 18 may be any individual sheet, such as a rectangular sheet. These half-plates or plates do not have to be fitted on the pipes 2 and 3 , but can be moved directly from the side of the pipes 2 and 3 and fixed on the outer surfaces of the pipes 2 and 3 .

In some embodiments, the positioning device 18 may be a block with a greater thickness relative to the above-described plate.

Due to the long length of the longitudinal bars 20 themselves, multiple positioning devices 18 can often be used in conjunction to position them. That is to say, the same longitudinal reinforcing bar 20 is to pass through two or more positioning devices 18 , and these positioning devices 18 can be arranged at a distance from each other in the longitudinal direction of the beam pipe 2 .

Figure 6 schematically shows a beam-column assembly 14 according to a first embodiment of the invention, where it can be seen that the rebar frame 19 in figure 5a has been filled and covered with concrete and thus a reinforced concrete structure 24 is formed on the pipes 2, 3 .

As can be seen from FIG. 6 , the beam-column assembly 14 has formed a reinforced concrete structure 24 except for the unused joint 15 and the end connection part 25 of the upright tubular material 3 . The unused joint 15 and the end connecting part 25 can also be connected with other beam pipes or column pipes subsequently.

In the present invention, the reinforced concrete structure 24 formed on the outside of the beam pipe material 2 and the column pipe material 3 can have the functions of anti-corrosion and fire prevention. Therefore, the reinforced concrete structure 24 can unexpectedly and without problems replace the anti-corrosion material and the fire-proof material applied in the factory and the construction site, respectively, in the prior art.

The thickness of the reinforced concrete structure 24 can be greater than the radial or lateral height of the positioning device 18 on the outer surface of the pipe, whereby the positioning device 18 can be completely buried in concrete. If the positioning device 18 is exposed to the concrete, the aesthetics of the beam will be affected and the positioning device 18 will be susceptible to corrosion. The thickness of the reinforced concrete structure 24 may be in the range of about 50mm-60mm, but is not limited thereto, as long as it can replace the existing fireproof and anticorrosion coating to play a fireproof and anticorrosion function.

Next, an exemplary manufacturing method of the beam-column assembly 14 shown in FIG. 6 of the present invention will be described with reference to FIG. 7 , which mainly includes the following steps:

At the factory, two upright tubes 3 and one beam tube 2 are provided or manufactured, each upright tube 3 including a joint 15 respectively, on the joint 15 and on the two end sections 16 , 17 of the beam tube 2 respectively introducing hole 12;

In the factory, a plurality of positioning devices 18 are respectively sheathed and welded to different parts of each column pipe 3 at a certain distance from each other, the longitudinal steel bars 20 are introduced through the positioning devices 18, and the transverse steel bars 21 are welded to the longitudinal steel bars 20. Forming the reinforced frame 19 and finally introducing concrete on the outer surface of the section of the column pipe 3 excluding the joints 15 and the end connections 25 to partially form the reinforced concrete structure 24 on the outer surface of the column pipe 3;

At the factory, a plurality of positioning devices 18 are respectively fitted at a distance from each other and welded to different locations of each cross-member tube 2 between the two end sections 16 , 17 . The longitudinal reinforcement is introduced by the positioning devices 18 . 20. Welding transverse reinforcement 21 to longitudinal reinforcement 20 to form reinforcement frame 19, finally introducing concrete on the outer surface of the section between the two end sections 16, 17 of the beam tube 2 to A reinforced concrete structure 24 is partially formed on the outer surface;

Referring to FIG. 7 , at the construction site, each end section 16 , 17 of the beam pipe 2 to which concrete has not yet been applied is connected to a joint 15 of each of the upright pipes 3 by means of a connecting piece 1 ′, 1 ″, 1 ″’ respectively connection, wherein the opening 8 or the opening part on the connecting piece 1', 1", 1"' is open upwards, with the aid of the opening 8 or the opening part, the screwing part 13 or the riveting part is introduced into the through hole 12 and tightened solid;

On the construction site, concrete is introduced into the interior of the beam pipe 2 through the opening 8 or the opening portion of the two connecting pieces 1', 1", 1"'. This step can be omitted if the beam tube 2 is short enough and already sufficient to meet the strength requirements. The concrete introduced into the inside of the beam pipe 2 may completely fill the beam pipe 2, or only the two ends of the beam pipe 2 may be filled, and the middle part is not filled. The latter can give the beam a certain plasticity;

At the construction site, concrete is introduced on the outside at the two beam-column connection nodes 26, so that the beam tube 2 and the connected two joints 15 together form a beam member with a reinforced concrete structure 24 on the outside, see FIG. 6 .

The following summarizes various possible advantages of the beam-column assembly 14 of the present invention and its method of manufacture, but is not limited to these advantages. In addition, the various technical solutions of the present invention may only have some of the advantages; for any one of the advantages, the various technical solutions of the present invention may fully have the advantage, or only partially have the advantage.

On the one hand, most or even all welding steps are completed in the factory, and welding steps are basically or completely unnecessary on the construction site, which greatly reduces the time and cost consumption caused by welding on the construction site.

On the other hand, instead of applying anti-corrosion materials and fire-resistant materials respectively in factories and construction sites in the prior art, in the present invention, only the reinforced concrete structure 24 can be used to simultaneously realize anti-corrosion and fire-proof functions, and most of them (that is, except for beam-column connections) The application of the reinforced concrete structure 24 other than the node 26 has been completed at the factory, and only concrete needs to be applied at the beam-column connection node 26 at the construction site, which further reduces the workload on the construction site. The reinforced concrete structure 24 of the present invention is not easy to fall off from the outer surface of the pipe.

Finally, based on the use of the connectors 1', 1", 1"', 1"", 1""' of the present invention, not only the welding connection is abandoned, but also the connectors 1', 1", 1"' can be used. The openings 8 on , 1"" and 1""' apply concrete to the inside of the beam pipe 2 to increase the strength, thereby reducing the size of the beam pipe 2 such as wall thickness and saving material costs.

The present invention may include any feature or combination of features implicitly or explicitly disclosed herein, or a generalization thereof, and is not limited to any of the limited scopes listed above. Any of the elements, features and/or structural arrangements described herein may be combined in any suitable manner.

The specific embodiments disclosed above are illustrative only, and 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 changes and modifications may be made to the specific embodiments disclosed above, and all such modifications are considered to be within the scope and spirit of the invention.

Claims

A connecting piece for connecting a first pipe material and a second pipe material, characterized in that the connecting piece has:

a first end section configured for connection with the first pipe,

a second end section configured for connection with a second pipe, and

an intermediate section located between the first end section and the second end section,

In this case, the connecting piece is designed as a hollow profile which is open at one end, and the connecting piece has an opening on the peripheral side, which opening extends at least over the middle section.
The connector of claim 1, wherein the first and second end sections are configured to form-fit, respectively, first and second pipes to be connected such that the first end The section and the second end section can be inserted inside the first and second pipes, respectively, or can be nested outside the first and second pipes.
The connecting element as claimed in claim 1 or 2, characterized in that the first end section and the second end section are formed on the peripheral side with through-holes through which the screw and/or riveted elements pass through. , for screwing and/or riveting with the first pipe and the second pipe.
4. The connector according to claim 3, wherein the threaded member is a bolt or a screw, and/or the riveted member is a rivet.
2. The connector according to claim 1 or 2, wherein the opening has a rectangular, circular or oval shape.
2. A connector according to claim 1 or 2, wherein the opening extends over the entire length of the connector.
7. The connector of claim 6, wherein the connector has a substantially U-shaped cross-section constant throughout its entire length.
The connecting piece according to claim 7, characterized in that the connecting piece comprises a bottom wall and two side walls, the two side walls respectively have hem portions extending toward each other on their free ends, and at each fold The openings are formed between the edges.
2. The connecting piece as claimed in claim 1 or 2, wherein the first end section and the second end section each have a closed cross section at least over part of their length.
10. The connector of claim 9, wherein the openings extend between closed cross-sections.
2. The connector according to claim 1 or 2, wherein the opening is oriented upwardly or laterally in the use state of the connector.
4. The connector of claim 3 wherein the size of the opening in the intermediate section is such that an installer's hand or tool can reach the first end section through the opening or opening portion in the intermediate section and inside the second end section.
12. A connector according to claim 11, wherein the openings in the intermediate section are dimensioned such that, in the in-use state of the connector, concrete can be introduced into the first pipe material and through the opening or portions of the openings in the intermediate section. Inside the second pipe.
The connector according to claim 1 or 2, wherein the first pipe material and the second pipe material are beam pipes and column pipes for buildings, respectively.
A beam-column connection node, characterized in that the beam-column connection node comprises:

an end section of the cross member tube, the cross member tube being formed as the first tube;

a connection of the column pipe for connection, which is fastened with one end to the column pipe and points with its other end towards the cross member pipe, which is formed as the second pipe;

A connector according to any one of claims 1 to 14,

Wherein, the column pipe is connected with the beam pipe by its joint through the connecting piece,

Wherein, the first end section of the connector is inserted or sheathed inside or outside the end section of the beam pipe, the second end section of the connector is inserted or sheathed inside or outside the joint of the column pipe, and the connection The middle section of the piece is located between the end section of the beam tube and the joint of the column tube.
The beam-column connection node according to claim 15, characterized in that the first end section and the second end section of the connecting element are configured on the peripheral side with passages through which the screwed and/or riveted elements can pass through. holes, and the joints of the end sections of the cross member pipes and the column pipes are configured with through holes corresponding to said through holes, through which the first end section and the second end section of the connecting piece respectively Threaded and/or riveted to the end sections of the beam tube and to the joints of the column tube.
The beam-column connection joint according to claim 15 or 16, characterized in that the first end section and the second end section of the connecting piece are transverse to the joint of the end section of the beam pipe and the column pipe, respectively The direction or radial direction is at least partially spaced apart by a distance.
The beam-column connection node of claim 15, wherein the first end section and the second end section are rivetless riveted to the end section of the beam pipe and the joint of the column pipe, respectively.
The beam-column connection node according to claim 15 or 16, wherein the opening is open upwardly or laterally.
A beam-column assembly, characterized in that the beam-column assembly comprises at least one beam-column pipe, two upright-column pipes, and at least two beam-column connection nodes according to any one of claims 15 to 19, each beam-column The connecting node comprises one of the two end sections of the cross member pipe, a joint of one of the two column pipes, and a connecting piece according to any one of claims 1 to 14 .
The beam-column assembly of claim 20, wherein the beam-column assembly is externally provided with a reinforced concrete structure comprising a reinforced frame and concrete.
The beam-column assembly of claim 21, wherein the rebar frame comprises longitudinal bars extending in the longitudinal direction of the associated beam or column tubing and transverse bars fixed laterally to the longitudinal bars.
The beam-column assembly according to claim 22, wherein the longitudinal reinforcement is positioned by a positioning device, and the positioning device is fixed on the outer surfaces of the beam pipe and the column pipe.
24. The beam-column assembly of claim 23, wherein the positioning device is configured as a one-piece hollow panel that is nested and secured to the outer surfaces of the beam tube and the column tube.
24. The beam-column assembly of claim 23, wherein the positioning means are secured to the longitudinal inner sides of the two end sections of the beam tube.
24. A beam-column assembly as claimed in claim 23, wherein the positioning means are provided with through holes through which the longitudinal bars can pass to be oriented substantially parallel to the corresponding beam or column pipe.
24. The beam-column assembly according to claim 23, wherein the positioning device is constructed as a multi-piece hollow panel or a separate panel, and can be moved directly from the side of the column pipe or beam pipe and fixed outside it on the surface.
The beam-column assembly of claim 24 or 27, wherein the fixing is performed by welding.
21. The beam-column assembly of claim 20, wherein the beam tube has concrete in its interior that is introduced through the opening of the connector.
30. The beam-column assembly of claim 29, wherein the concrete fills only the two end regions of the interior of the beam tube and does not fill the intermediate region thereof.
30. The beam-column assembly of claim 29, wherein the concrete fills the entire interior of the beam tube.
A method for manufacturing a beam-column assembly according to any one of claims 21 to 31, characterized in that the method comprises at least the steps of:

a) Provide two upright pipes and at least one beam pipe with joints respectively;

b) forming a reinforced concrete structure on the outside of the part of the column pipe except for the joint, and forming a reinforced concrete structure on the outside of the beam pipe, between its two end sections;

c) Connecting each end section of the cross member pipe with a joint of one of the column pipes with a connecting piece according to any one of claims 1 to 14, thereby forming two pieces according to claims 15 to 19 Any one of the beam-column connection nodes;

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

e) Concrete is introduced on the outside of the two beam-column connection nodes to form a reinforced concrete structure.
The method according to claim 32, wherein the step a) further comprises: assembling and fixing at least two positioning devices for positioning the longitudinal steel bars of the steel bar frame on each column pipe and the beam respectively on the pipe.
The method according to claim 32, wherein the step c) further comprises: connecting the first end section and the second end section of the connector to the beam pipe and the column pipe respectively through a screw joint and a / or riveted connection.
33. The method of claim 32, wherein steps a) and b) are carried out at the factory.
33. The method of claim 32, wherein steps c)-e) are carried out at the construction site.