JPH046406Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is used as a building material for closing the gaps between the building frames of a building frame, which has a structure that can adapt to vibrations caused by earthquakes and movement due to ground changes. This relates to an expansion joint structure.

[Conventional technology] Traditionally, in Japan, where earthquakes and ground subsidence are common, in architectural design, when building extensions, a certain amount of space is left between the building frames to prevent movement due to earthquake vibrations and ground changes. It is necessary to protect the building from deformation and distortion, and therefore, various structures, such as extensions and contractions made up of or shaped like members that fit slidably into each other, are used for the purpose of covering the spaces between the building frames. A joint member is used.

[Problems that the invention aims to solve] However, such conventional joint structures have a structure in which they fit together in a slidable manner, making them easy to fall off in the event of a fire, making the structure complex, and making installation difficult. , it is time-consuming and troublesome, and has drawbacks such as a small tolerance due to movement.

[Means for Solving the Problems] Therefore, the purpose of this invention is to eliminate such drawbacks in the prior art by covering with a metal cover,
To provide an expansion joint structure for a building frame, which has sufficient fire resistance, has a sufficiently large tolerance for movement, is simple in structure, and is extremely easy to construct on site.

According to this invention, the expansion joint structure of a building frame includes a metal cover that covers a gap to be closed between adjacent building frames, a rim member having an L-shaped cross section provided on at least one of the building frames, and the metal cover. a spring member consisting of a pair of leaf springs attached to and in contact engagement with the upright edge member of the edge member in a sandwiching state;
It consists of a U-shaped support fitting attached to the metal cover, a bolt for attaching the spring member to the support metal fitting, and the spring member is configured to respond to relative movement between the edge material on the building frame and the metal cover. The member is configured to be elastically biased.

Other objects, features and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[Example] Figures 1 and 2 of the drawings show a first example of this invention as a roof cover for the expansion joint structure of a building frame, and as shown in the figure, the expansion joint structures are adjacent to each other. A metal cover 11 that covers the gap 4 between the building frames 2, a mounting edge member 12 provided on each building frame 2, and a spring member 14 that elastically connects the metal cover 11 and the edge member 12. The spring member 14 is mainly configured such that the spring member 14 is elastically biased in response to relative movement between the metal cover 11 and the edge member 12. The mounting edge material 12 provided on each building frame 2 is preferably a chevron-shaped member with an L-shaped cross section, and together with a water stop plate 15 for water treatment made of rubber, synthetic rubber, or flexible synthetic resin. A pair of spring members 14 attached to the metal cover 11 are in contact with the upright legs of the edge member 12 in a sandwiched state. The spring member 14 is the second
As clearly shown in the figure, it is made of a plate spring and is attached with bolts 17 to a U-shaped support fitting 16 fixed to the metal cover 11 by screws or welding, and between the pair of spring members 14. The edge material 12 is inserted and elastically clamped.

Therefore, the edge material 12 attached to each building frame 2
, the spring member 14 attached to the metal cover 11
The spring member 14 used can be easily installed by simply mounting it in a sandwiched manner between the building frames 2, and the tolerance difference in the horizontal and vertical movement between the building frames 2 can be adjusted without the need for special techniques. It can be made large.

In addition, FIG. 3 of the drawings shows a second embodiment of the expansion joint structure of the building frame of this invention as a roof cover, and in this expansion joint structure, one outer wall of the building frame 2' is made of metal. The difference from the first embodiment is that a cover 11' is attached. That is, as shown in the figure, a metal cover 1 covering a gap 4 between building frames 2 and 2'
One end of the metal cover 11' is attached to the mounting edge member 12 of one building frame 2 via a pair of spring members 14 supported by a support fitting 16 in the same manner as in the first embodiment. The other end is attached to the other building frame 2' with a mounting bracket 18 and a rim material 19 via a sealing material 20, and a water stop plate 15 is installed between the rim materials 12 and 19 for water treatment in the gap 4. ing.

Furthermore, FIGS. 4 and 5 show an example of an expansion joint structure as an exterior wall cover, and as shown in the figure, the expansion joint structure includes a metal cover 21 that covers the gap 4 between the building frames 2, and a metal cover 21 that covers the gap 4 between the building frames 2. 2, and a spring member 24 that elastically connects the metal cover 21 and the edge material 22. is inserted into the inside of the C-shaped edge member 22 through the opening and is elastically engaged with a spring member 24 provided inside the edge member 22. The spring member 24 consists of a leaf spring, as shown in particular in FIG.
It is attached inside by screws 25. It is preferable that the edge material 22 has a flat box-like C-shaped cross section and is made of two members, for example, divided into upper and lower halves, as shown in the figure.

Further, FIG. 6 shows an example of an expansion joint structure for a building frame as an exterior wall cover, and this expansion joint structure is designed so that one end of the metal cover 21' is attached to one exterior wall of the building frame 2'. This is different from the case of the third embodiment, in that one end of the metal cover 21' is inserted from the opening into a modified C-shaped edge member 22' attached to the building frame 2'. and is resiliently engaged with a spring member 24' within the edge member 22'. Preferably, this edge member 22' is also made from two pieces as shown. Of course, in the case of this fourth embodiment as well as the previous third embodiment, a water stop plate for water treatment between the building frames is provided in the same way as in the first and second embodiments. It is preferable to provide the

[Operations and effects of the invention] According to the expansion joint structure of the building frame of this invention constructed in this way, in order to close the gap 4 between the adjacent building frames 2, 2' to be connected and covered. , Attach the mounting edge materials 12, 22, 22' to the building frames 2, 2', and attach the metal cover 11 to cover the gap 4,
The ends of 11', 21, 21' are connected to spring members 14, 2
The edge members 12, 22, 22' on the building frames 2, 2' and the metal covers 11, 1 are elastically engaged with each edge member 12, 22, 22' via the edges 4, 24'.
By elastically biasing the spring members 14, 24, 24' in response to the relative movement between the building frames 1', 21, and 21', It can handle horizontal movement or vertical movement with a large tolerance, and is designed so that the center of the metal cover is always stable even when the building frame vibrates or moves, and is also designed to withstand typhoons, storms, etc. It has a structure that can withstand wind pressure sufficiently, and can be easily installed without requiring any skill or special technology.It is easy to install and can be completed in a short time.It has a simple structure and is manufactured at low cost and strong. It is possible to obtain an expansion joint structure that has the following effects. In addition, water treatment can be adequately addressed by using water stop plates and sealing materials, and by using aluminum alloy or stainless steel, an expansion joint structure with excellent corrosion resistance and aesthetics can be obtained.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of the first embodiment of the expansion joint structure for a building frame of this invention, Fig. 2 is a plan view of the spring member in Fig. 1, and Fig. 3 is a longitudinal cross-section of the second embodiment. 4 is a vertical sectional view of the third embodiment, and FIG.
The figure is a plan view of the spring member in FIG. 4, and FIG. 6 is a longitudinal sectional view of the fourth embodiment. In the diagram, 2, 2'... Building frame, 4... Void, 11, 1
1', 21, 21'...metal cover, 12, 19,
22, 22'... Edge material, 14, 24, 24'... Spring member, 15... Water stop plate, 16... Support metal fittings, 1
7... Bolt, 18... Mounting bracket, 20... Seal material, 25... Screw.

Claims (1)

[Scope of utility model registration request] A metal cover 11 that covers the gap to be closed between adjacent building frames, a rim member 12 with an L-shaped cross section provided on at least one of the building frames, and a rim member that is attached to the metal cover and stands upright from the rim member. It consists of a spring member 14 consisting of a pair of leaf springs that contact and engage in a pinched state, a U-shaped support fitting 16 attached to the metal cover, and a bolt 17 for attaching the spring member to the support fitting. An expansion joint structure for a building frame, characterized in that a spring member is elastically biased in response to relative movement between an edge material on the frame and a metal cover.