JPH0853883A - Beam joint structure in building unit provided with inclined plane of structure - Google Patents

Abstract

PURPOSE:To relax restrictions imposed on the way of layout inside a building and maintain the strength of frame structure by jointing a pair of flanges with each other installed to an inclined beams and a horizontal beam by way of a flange plate ben in conformity with the shape of a plane of structure over an inclined plane of structure from a horizontal plane of structure. CONSTITUTION:Prior to jointing an inclined beam 4 with a horizontal beam 5 made of a channel steel or the like, which forms a roof unit, for example, flange plates 15 and 16 having an angle in conformity with a mounting angle of the beam materials 4 and 5, are spanned to a joint part and fixed thereto. Each of connection plates 15 and 16 and 19 can be fixed with the inside of the channel steel. They can be jointed as well by interposing a joint fitting which buries the clearance between the jointed parts of the horizontal beam 5 and the inclined beam 4. This construction makes it possible to withstand a horizontal load mainly with the flange plates 15 and 16 and a vertical load mainly with a web plate 19, thereby maintaining a required strength as a space truss. It is, therefore, possible to execute mounting work with high efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam joint structure in a building unit having an inclined construction surface.

[0002]

2. Description of the Related Art In a unit building such as a unit house having a so-called ramen structure, it is desirable that each building unit also has an independent ramen structure.

By the way, among roof units as one of building units, for example, Japanese Patent Laid-Open No. 02-14773.
As shown in Japanese Patent Publication No. 7, there is a structure having an inclined structure surface depending on the requirements of the function and appearance of the building.

In this type of roof unit, both the inclined beams arranged along the inclined structure surface and the horizontal beams arranged along the horizontal structure surface are made of a U-shaped section steel. The respective groove portions of the shaped steel are directed in the same direction, and the ends of these shaped steels are joined together via a so-called gusset plate. This gusset plate is made wider than the web portion located between each pair of flange portions of the horizontal beam and the inclined beam, and strength is ensured by making the width dimension.

[0005]

However, since the gusset plate as described above is wider than the web portion of the shaped steel, there is a portion protruding from the upper and lower flange surfaces of the shaped steel, and this protruding portion is the roof. It was a factor that constrained the internal fit. Further, since the bolt for joining the gazette plate to the shaped steel is treated as a pin in the structural calculation, it may be difficult to secure the required strength as a rigid frame structure.

The present invention has been made against the background of such an actual situation, and in a building unit provided with an inclined construction surface, the constraint of the accommodation condition inside the building unit is relaxed and the required strength as a rigid frame structure is provided. The purpose is to provide a beam joint structure that can be secured.

[0007]

In order to achieve the above object, the invention according to claim 1 provides an inclined beam arranged along an inclined construction surface of a building unit and a horizontal construction surface of the building unit. The horizontal beams arranged along the same are composed of section steels with a U-shaped cross section, and the inclined structure surface is formed by joining the ends of these section steels with the grooves of these sections facing the same direction. In a beam connection structure in a building unit including, a pair of each of the inclined beam and the horizontal beam provided via a flange plate bent in accordance with a structure shape extending from the horizontal structure surface to the inclined structure surface. The flange portions are joined together, and the web portions are joined together via a web plate that is not wider than the web portions located between the pair of flange portions.

According to a second aspect of the present invention, in the beam joint structure in the building unit having the inclined construction surface according to the first aspect, the flange plates are arranged on the outer surfaces of the upper surface and the lower surface of the flange. And the web plate is disposed on the outer surface of the web portion.

According to a third aspect of the present invention, in the beam joint structure in the building unit having the inclined construction surface according to the first aspect, the flange plates are arranged on the inner surfaces of the upper surface and the lower surface of the flange. The web plate is disposed on the inner surface of the web portion.

According to a fourth aspect of the present invention, in a beam joint structure in a building unit having an inclined construction surface according to the first aspect, the ends of the horizontal beam and the inclined beam are respectively provided with both beams. A plate member set to a shape that closes the cross section is fixed, a joint metal fitting is arranged between these plate members, and the joint metal fitting and each plate member are fixed by a connecting member, and an upper surface of the joint metal fitting. And the lower surface portion is the flange plate, and the side surface portion of the joint fitting is the web plate.

[0011]

According to the first aspect of the present invention, each pair of flanges provided on the inclined beam and the horizontal beam through the flange plate that is bent according to the structure shape extending from the horizontal structure surface to the inclined structure surface. The parts are joined together by welding. Then, the web portions are joined to each other via a web plate that is not wider than the web portion located between each pair of flange portions. Therefore, the portion of the shaped steel projecting from the upper and lower flange surfaces is at most only the wall thickness of the flange plate, and the restriction of the accommodation degree inside the building unit can be relaxed by greatly reducing the projecting portion. Further, since the flange plate mainly bears a load in the horizontal direction, while the web plate mainly bears a load in the vertical direction, the flange plate and the web plate can withstand loads acting not only in the horizontal and vertical directions but also in various directions. And the joints will endure and the required strength of the rigid frame structure can be secured.

According to the second aspect of the invention, the portion of the shaped steel (tilted beam, horizontal beam) protruding from the upper and lower flange surfaces is
Only the wall thickness of the flange plate is used, and the significant reduction of the protruding portion can alleviate the constraint on the fitting condition inside the roof. Further, since no bolt is used for joining with the shaped steel, it is possible to secure the required strength as a rigid frame structure.

According to the third aspect of the invention, there is no portion projecting from the upper and lower flange surfaces of the shaped steel (tilted beam, horizontal beam), and by eliminating the projecting portion, the required strength as a rigid frame structure can be obtained. While securing, it is possible to significantly ease the constraints on the degree of storage inside the roof.

According to the fourth aspect of the present invention, the portions protruding from the upper and lower flange surfaces of the shaped steel (tilted beam, horizontal beam) are completely eliminated, and the constraint of the accommodation condition inside the roof is greatly relaxed, and the rigid frame structure is provided. Since it is possible to secure the required strength as described above and to perform the mounting work on the construction site only for the joint fittings, it is possible to reduce the number of work steps.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

First, an outline of a roof unit as a building unit to which the present invention is applied will be described.

In FIG. 9, reference numeral 1 is a roof unit as a building unit, and two high columns 101 and 102 at four corners of the roof unit 1 and low columns 103 and 104 relatively lower than these high columns. And are set up.

A roof beam 6a is bridged between the upper ends of the high columns 101 and 102, and a roof beam 6b is bridged between the upper ends of the low columns 103 and 104.

Reference numeral 6c is an intermediate portion which defines a horizontal framing surface 3 of the roof unit 1 which extends horizontally from the roof beam 6a side and an inclined framing surface 2 which extends obliquely upward from the roof beam 6b side toward the horizontal construction surface 3. It is a beam. These roof beams 6a, 6b, intermediate beam 6c
An inclined beam 4 and a horizontal beam 5 are bridged between the end portions of (the connecting structure will be described in the first embodiment described later).

Such a roof unit 1 has a base 4
The floor beams 201, 202, 203, and 204 arranged on the sides are attached to a lower-floor building unit or a foundation (not shown) for installation.

The embodiments of the present invention in the roof unit having such a structure will be listed below.

(First Embodiment) As shown in FIGS. 1 and 2, the inclined beam 4 and the horizontal beam 5 are both made of shaped steel having a U-shaped cross section. Then, the groove portions 7 and 8 of these shaped steels are oriented laterally (in the same direction), and the end portions 9 and 1 of these shaped steels are formed.
Zeros are joined by a joining structure described later.

The groove portions 7 and 8 are formed on the inclined beam 4 and the horizontal beam 5, respectively.
Forming a pair of flange portions 11, 12, 13, 1
4 are provided over the entire length.

The outer surfaces of the upper surfaces of the flange portions 11 and 13 and the outer surfaces of the lower surface portions of the flange portions 12 and 14 have a substantially V-shape following the structure shape extending from the horizontal structure surface 3 to the inclined structure surface 2. Bent flange plates 15 and 16 are arranged, and these flange plates 15 and 16 are fixed to the inclined beam 4 and the horizontal beam 5 by welding.

Further, a web plate 19 having the same width as the web portions 17 and 18 is arranged on the outer surface of the web portions 17 and 18 located between the pair of flange portions 11 and 12 and between the pair of flange portions 13 and 14, respectively. This web plate 19
Is fixed to the web portions 17 and 18 by welding.
It should be noted that bolting may be adopted for this fixing,
Welding is preferable from the viewpoint of ensuring strength.

According to the beam joint structure in the roof unit having the inclined construction surface having such a configuration, the flange plates 15 and 16 bent according to the construction shape extending from the horizontal construction surface 3 to the inclined construction surface 2 are provided. Inclined beam 4 and horizontal beam 5
The pair of flange portions 11 and 13 and the pair of flange portions 12 and 14 provided in the above are respectively joined by welding. Then, the web plate 19 having a width (in this case, the same width) wider than the web portions 17 and 18 located between the pair of flange portions 11, 12 and 13, 14 respectively.
The web portions 17 and 18 are joined to each other through welding. Therefore, the portion protruding from the upper and lower flange surfaces of the shaped steel (tilt beam 4, horizontal beam 5) is the flange plate 1
Only the wall thicknesses of 5 and 16 are provided, and the restriction of the fitting condition inside the roof can be eased by greatly reducing the protruding portion. In addition, since the flange plates 15 and 16 mainly bear the load in the horizontal direction, the web plate 19 mainly bears the load in the vertical direction, so that the flanges can withstand loads acting not only in the horizontal and vertical directions but also in various directions. The plates 15 and 16 and the web plate 19 work together to withstand, and the required strength as a rigid frame structure can be secured.

(Second Embodiment) FIG. 3 shows a second embodiment of the present invention, in which the inner side surfaces of the flange portions 21 and 23 and the inner side surfaces of the flange portions 22 and 24 are inclined from a horizontal structure to an inclined structure. Flange plates 25 and 26 that are bent in a substantially V shape are arranged in accordance with the surface shape, and the flange plates 25 and 26 are inclined beams 27 and horizontal beams 28.
It is fixed by welding.

Further, the inner surfaces of the web portions 29, 30 located between the pair of flange portions 21, 22 and 23, 24 are not wider than the web portions 29, 30 (in this case, narrower in width). ) Is provided and the web plate 31 is fixed to the web portions 29 and 30 by welding.

According to such a configuration, the shaped steel (tilted beam 2
7. There is no part protruding from the upper and lower flange surfaces of the horizontal beam 28), and by eliminating the protruding part, the constraint of the fitting condition inside the roof is greatly eased while securing the required strength as a rigid frame structure. You can

4 and 5 show modified examples of the first and second embodiments. In FIG. 4, flange plates 41 and 42 are provided with upper half 43 and lower half of the web plate. 44 is provided in advance and is made into two parts. According to this, there is an advantage that even if the width dimension of the horizontal beam and the inclined beam to be coupled are large to some extent, they can be handled by the same component.

Further, FIG. 5 shows the flange plates 45, 4
6 and the web plate 47 are shown as a single component that is previously integrated. According to this, since there is no joint in which the transmission of the load is suppressed or the load is concentrated in the parts, the transmission of the load becomes good and the strength of the building can be further strengthened. .

As for the fixing, as shown in the above embodiment, each fixing portion may be either the outer surface or the inner surface of the flange portion and the outer surface or the inner surface of the web portion.

(Third Embodiment) FIG. 6 shows a third embodiment of the present invention, in which an end portion 52 of a horizontal beam 51 and an inclined beam 5 are provided.
Plates 55 and 56 of a size that just closes the cross-sections of both beams are fixed to the end 54 of No. 3 by welding, and a joint metal fitting 57 is arranged between these plates 55 and 56. This joint fitting 57 has a plate 5
Bolt insertion holes 59 which are aligned with the bolt insertion holes 58 formed in the reference numerals 5 and 56 are formed, and the bolts 60 inserted into the bolt insertion holes 58 and 59 are fastened by the nut 61. Are fixed to each other by. In this case, the upper surface and the lower surface of the joint fitting 57 function as flange plates, and the side surfaces of the joint fitting 57 function as web plates. Note that the bolt 60 in this case is treated as a pin (syllable) because of its structure, but the plates 55, 5
It is natural that 6 is reinforcing it.

With such a structure, there is no part projecting from the upper and lower flange surfaces of the shaped steel (tilt beam 53, horizontal beam 51), the constraint of the accommodation inside the roof is greatly relaxed, and the rigid frame structure is provided. Since it is possible to secure the required strength as described above and to perform the mounting work at the construction site only for the joint fitting 57, it is possible to reduce the number of working steps.

7 and 8 show a modified example of the third embodiment, in which the shape of the joint metal fittings has been devised, and in FIG. 7, the flange plates 71 and 72 are formed in a flat plate shape. The flange plates 81 and 82 are curved plates. By adopting these, it is possible to deal with a roof structure that is complicatedly inclined.

The present invention is not limited to the above embodiment. For example, the building unit can be applied not only to the roof unit but also to a building unit including a so-called flat roof.

[0037]

As described above, according to the present invention, each of the inclined beam and the horizontal beam is provided through the flange plate that is bent in accordance with the structure shape extending from the horizontal structure surface to the inclined structure surface. The pair of flange portions are joined together. Then, the web portions are joined together via a web plate that is not wider than the web portion located between each pair of flange portions. Therefore, the portion of the shaped steel projecting from the upper and lower flange surfaces is only the wall thickness of the flange plate, and the restriction of the fitting condition inside the roof can be alleviated by greatly reducing the projecting portion. Further, since the flange plate mainly bears a load in the horizontal direction, while the web plate mainly bears a load in the vertical direction, the flange plate and the web plate can withstand loads acting not only in the horizontal and vertical directions but also in various directions. With the above, they can endure in cooperation with each other, and it is possible to secure the required strength as a rigid frame structure.

[Brief description of drawings]

FIG. 1 is a perspective view of a component structure showing a first embodiment of a beam joint structure in a roof unit having an inclined construction surface according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a perspective view of a component structure showing a second embodiment of the beam joint structure.

FIG. 4 is a component configuration perspective view showing a modified example of the first embodiment or the second embodiment.

FIG. 5 is a component configuration perspective view showing the same modified example.

FIG. 6 is a component configuration perspective view showing a third embodiment of the beam joint structure in the roof unit having the inclined construction surface of the present invention.

FIG. 7 is a component configuration perspective view showing a modified example of the third embodiment.

FIG. 8 is a component configuration perspective view showing the same modified example.

FIG. 9 is a schematic view of a roof unit.

[Explanation of symbols]

 1 Roof unit (building unit) 2 Inclined construction surface 4 Inclined beam 3 Horizontal construction surface 5 Horizontal beam 15, 16 Flange plate 11, 12, 13, 14 Flange portion 17, 18 Web portion 19 Web plate

Claims (4)

[Claims] 1. A tilted beam arranged along a tilted construction surface of a building unit and a horizontal beam arranged along a horizontal construction surface of the building unit are both made of a U-shaped steel section. In a beam joint structure in a building unit provided with an inclined structural surface formed by joining end portions of these structural steels with the respective groove portions of these structural steels facing in the same direction, from the horizontal structural surface to the inclined structural surface A pair of flange portions provided on the inclined beam and the horizontal beam are joined to each other via a flange plate that is bent according to a structure surface shape, and a web portion located between the pair of flange portions is used. Is a beam joint structure in a building unit having an inclined structure, wherein the web portions are joined to each other via a web plate that is not wide. 2. The flange plate is disposed on the outer surfaces of the upper surface portion and the lower surface portion of the flange portion, and the web plate is disposed on the outer surface of the web portion. Beam-joint structure in a building unit with an inclined slab. 3. The flange plate is disposed on the inner surface of the upper surface portion and the lower surface portion of the flange portion, and the web plate is disposed on the inner surface of the web portion. Beam-joint structure in a building unit with an inclined slab. 4. A plate member set to a shape that closes the cross-sections of the horizontal beam and the inclined beam is fixed to each of the end portions of the horizontal beam and the inclined beam, and between the plate members,
A joint metal fitting is provided, and the joint metal fitting and each of the plate members are fixed to each other by a connecting member. The upper surface and the lower surface of the joint metal fitting are the flange plates, and the side surface of the joint metal fitting is the web plate. The beam joint structure in a building unit having an inclined structure according to claim 1.