WO2004088053A1

WO2004088053A1 - Joint of pillar and beam

Info

Publication number: WO2004088053A1
Application number: PCT/KR2004/000626
Authority: WO
Inventors: Young Mok Kim
Original assignee: Young Mok Kim
Priority date: 2003-04-02
Filing date: 2004-03-22
Publication date: 2004-10-14

Abstract

This invention is about a bonding joint that puts a pillar and a beam together. The mechanism of this bonding joint can be applied when we put the pillar and the beam together without any drilling or welding work in the joint. As a result, not only it saves time and personal expenses, but also it makes the joint work easy and simple because tightening of the bolt is all that’s necessary. It’s very useful in a way that it can be used for both metal and non-metal pillars and beams as well.

Description

DESCRIPTION

JOINT OF PILLAR AND BEAM

[ Technical Field ] This invention is about a bonding joint that puts a pillar and a beam together for the structure of building. Concretely, it doesn't need any drilling or welding work in the joint and can be easily used for both metal and non-metal pillars and beams as well.

[ Background Art ] In connecting the pillar and the beam of a building structure, the joint mentioned above has a hole for the pillar and more than one supporting structure with a slope on one side of the supporting structure. Inside of that slope and the slope of a wedge with a female screw are put together. And the supporting structure is connected to the wedge by putting the bolt into the female screw of the wedge and pulling up. Another special aspect of the joint is to use a flange with a hole for bonding each part in the lower section of the supporting structure. And not only it saves time and personnel expenses, but also it makes the joint work easy and simple because tightening of the bolt is all that's necessary. It's very useful in a way that it can be used for both metal and non-metal pillars and beams as well.

[ Description of Drawings ] Figure 1 : a perspective view of a part of the joint

Figure 2 : a view in section which shows the joint with a pillar and a beam put in Figure 3 a plane figure of the joint

Figure 4 an opened-up view of another application of the joint Figure 5 a drawing in section of another application of the joint

< Description of Marks in the Drawings> P : a pillar , B : a beam , J : a joint , 10 a flange , 11 : a hole for fixing each part , 20,20' : supporting structures , 21 a slope , 22 : a hole for putting in a pillar or a beam , 23 : a bolt hole , 30,30' wedges , 31 : the slip plane of wedge,

33 : a female screw hole in wedges , 40 : a bolt

[ Technical Problem ] A pillar and a beam are using for building structures or welding is doing now. In case of the bonding mechanism with bolts and nuts, that is applied when we put the pillar and the beam together with many times of drilling or welding work in the joint and need some supporter. As a result, not only it loses time and personnel expenses, but also it makes the joint work hard. And welding is just in a way that it cannot be used for non-metal structures as like pipes made from petroleum or covered with polymer materials but only for metal structures.

[ Technical Solution ] This invention is devised to solve the problems mentioned above. In connecting the pillar and the beam of a building structure, the joint consists of the wedge has one-side slip plane and the slope inside the supporting structures. Not only it saves time and personnel expenses, but also it makes the joint work easy and simple because tightening of the bolt is all that's necessary.

[ Advantageous Effects ] The mechanism of this bonding joint can be applied when we put the pillar and the beam together without any drilling or welding work in the joint. As a result, not only it saves time and personnel expenses, but also it makes the joint work easy and simple because tightening of the bolt is all that's necessary. It's very useful in a way that it can be used for both metal and non-metal pillars and beams as well.

[ Best Mode ] This invention is about a bonding joint that puts a pillar and a beam together. This joint consists largely of three parts: 1) two holes that allow the pillar and the beam to go in, 2) a supporting structure that has an inclined plane on one side in the lower part of the holes, (shown in the Figure 1 and 2 as #21) This supporting structure has a hole for a bolt at its upper part through which the bolt pulls a wedge with a female screw and fix the structure firmly. The wedge can easily fasten and loosen the structure by using the principle that part of the normal load from the beam can be changed to the shearing load by the slope. 3) and flanges that can fasten each other inside the joint.

[ Mode for Invention ] As you can see in the Figure 1 and 2, this joint has a flange(lθ) with a holed 1) for bonding each part and a supporting structure(20) with a slip plane(21). At the top of this structure(20), there is another hole to connect a beam. And at the opposite side of this hole(22), there is another hole(23) to put the bolt in. The joint is fastened by putting a bolt(40) into a hole(33) of the wedge that has a female screw and a slope(31). As in Figure 4 and 5, four supporting structures(20X20') with a slip plane(21) are formed like a cross on the flange(lθ) with a hole(22) for bonding. And at 75 the upper-middle part of this structure, there is a hole to insert a pillar(P) and a hole(23) for a bolt. Unexplained #41 is a nut. The function and effect of the bonding joint can be explained as follows: When constructing a building structure using this new joint, you first put the pillar(P), the flange(lθ) and the joint(J) together in a place where you want to 80 put the beam(B) as in Figure 1 and 2. Then fasten them by putting the bolt(40) into the holed 1) for bonding and locking the bolt with a nut(41).

When it is fixed, put the beam(B) into the hole(22) and through the hole(23) in the supporting structure(20), fasten the bolt in the female screw(33) of the wedge(30). By doing this, the bolt(40) will pull the wedge(30) and the

85 wedge(30) will move towards the upper part of the supporting structure(20) on the slip plane(21).

When the wedge(30) is pulled, the slope(31 ) of the wedge and the supporting structure(20) creates a resisting power, and where the wedge(30) and the beam(b) meets, there's also a strong pressure. The shear stress of

90 screwing up the bolt with a small power becomes strong to push the beam(b) and the supporting structure(20) by using a wedge(30).

Here, the closer the supporting structure(20) gets from the flange(lθ) to the hole(22) for the pillar, the narrower it becomes. When the wedge(30) inside the supporting structure moves towards the hole(22) for the pillar, it presses the

95 beam(B) and the pillar(P). And when the wedge(30) moves to the opposite side towards the flange part(lθ), it releases the pressure from the beam and the supporting structure(20). The slope(21)(31) on both the pillar and the wedge make the movement of the wedge(30) easier.

In the case of building a pillar(P), the anchor bolts are to be installed during

100 the ground-making where the pillar would be constructed. And install the bonding joints(J) as in Figure 4 and put the anchor bolt into the bonding hole(l l) in the flange part(lθ) and tighten it with a nut(41).

When the joint(J) is built on the ground, put the pillar(P) in the hole(22) for the pillar at the upper-middle part of the supporting structure(20)(20'). Then 105 tighten the bolt in the female screw of the wedge(30)(30') through the hole(23) for the bolt in the supporting structure. At this point, the wedge(30)(30') moves up as the supporting structure(20)(20') guides it and fix the pillar(P) to the structure. As in Figure 1 and 2, the wedge(30') is to put pressure on the pillar and the joint so that they can be firmly tightened up. 110 The application of this joint(J) can be used widely in any related construction without a separate drilling or welding work. A simple fastening of the bolt in the supporting structure(20)(20') will hold the pillar(P) and the beam(B) tight. This method is effective whether the pillar(P) and the beam(B) are made of metal or non-metal.

115 When disjointing a building structure that is built by this joint method, the only thing to do is to loosen the bolt(40)(40') in the supporting structure(20X20'). This will let the wedge(30)(30') out and the pressure that was pushing the pillar(P) and the beam(B) will be released. In other words, if the bolt is out, the wedge(30X30') will be forced to be pushed in the large space in the supporting

120 structure(20)(20') and loosen the normal stress of the pillar and the beam.

This application of the joint is not limited to those examples explained above, but the technique can be widely metathesized, transformed or modified.

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Claims

In connecting the pillar and the beam of a building structure, the joint mentioned above has a hole for the pillar and more than one supporting

150 structure with a slope on one side of the hole. Inside of that slope and the slope of a wedge with a female screw are put together. And the supporting structure is connected to the wedge by putting the bolt into the female screw of the wedge and pulling up. Another special aspect of the joint is to use a flange pipe with a ^• hole for bonding each part in the lower section of the supporting

155 structure.

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