JPS5942778B2 - Longitudinal members used in curtain wall construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a longitudinal member used in a curtain wall construction method in which the wall of a building is constructed from a large number of longitudinal members and a large number of panels fixed between cross members.

The longitudinal members used in the conventional curtain wall construction method are as shown in FIG.

That is, a sash member 2 also made of aluminum is fixed to a rectangular cylindrical shape 1 made of aluminum, and a pair of channel-shaped steel members are further connected within the shape 1 by means such as welding to form a rectangular tube. A shaped reinforcing material 3 is inserted, and the edges of panels 4, plate glass, etc. are fitted into the sash material 2 and fixed with packing or caulking material.

In the case of such a structure, due to the tolerance of the rectangular cylindrical shape 1 and the tolerance of the steel reinforcing material 3, there is a risk of looseness due to the gap between the two, which may cause noise due to thermal expansion and contraction after the building is completed. .

In addition, in order to prevent contact corrosion between aluminum and steel, it is necessary to form a corrosion-resistant layer such as alumite on the profile 1, but in the case of a rectangular cylindrical profile 1 as shown in Figure 1, the inner surface Since electrolytic treatment such as alumite processing is not possible, a problem arises in that a corrosion-resistant layer cannot be formed on the inside of the section 1 that directly contacts the reinforcing member 3 made of steel.

The purpose of this invention is to solve the above-mentioned problems with conventional longitudinal members.It is possible to apply corrosion-resistant treatment to all surfaces of aluminum formwork, and it is possible to use steel as a reinforcing material. The present invention provides a longitudinal member in which a main frame material and a shape material are joined without getting stuck.

The details of this invention will be explained below based on the accompanying drawings.

FIGS. 2 and 3 are cross-sectional views showing each side of the longitudinal member used in the present invention.

In these figures, 11 is the main frame material, which is made of a band-shaped steel material with an appropriate thickness, and has bent edges 12 facing the same direction on both sides to increase rust resistance.Two main frame materials 11 are placed back to back. , with each bent edge 12 facing outward.

・13 in FIG. 2 is a pair of left and right aluminum sections, each having an inward bent portion 14 that contacts the outside of the bent edge 12 at the rear of the main frame member 11; An L-shaped engagement edge 15 is formed on the inner side of the portion.

The rear engagement portion 17 of the aluminum profile 16 along the outer side of the front side of the main frame member 11 is connected to the engagement edge 15 of the profile 13.
to engage.

Reference numeral 18 in FIG. 2 is a front decorative frame made of aluminum, which has a T-shaped cross section, and its inner center portion 19 is connected to the left and right main frame members 11.
is sandwiched between.

In addition, on the right side of FIG. 2, an aluminum profile 20 is fixed to the outer rear side of the profile 16, and an aluminum profile fitted into the front part of this profile 20 and the rear side of the decorative frame 18 is attached. The edge of the panel 22 or plate glass is fitted into the groove formed between the holes 21 and fixed with packing or caulking material.

If an opening such as a sash is required on the wall surface, a section 23 with a U-shaped cross section such as a sash frame made of aluminum is installed between the section 21 on the left side in Fig. 2 and the engaging part 11 of the section 16. Insert and secure.

In the example shown in FIG. 3, the rear parts of the left and right main frame members 11 are covered with aluminum members 24 having a forward-facing U-shaped cross section, and the rear parts of the aluminum members 25 are placed along the front outside of the amphibious frame members 11. The engaging portion 26 is connected to the retaining portion 2 on the inner side of both front ends of the section 24.
7.

In the case of this example in Fig. 3, the front decorative frame 1 is the same as in the example in Fig. 2.
8 is sandwiched between the left and right main frame members 11.

In addition, the edge of the panel 22 or plate glass is inserted into the groove formed between the aluminum profile 21 fitted into the rear of both sides of the decorative frame 18 and the aluminum profile 28 fixed to the outer rear of the profile 25. The method of fitting and fixing with packing or caulking is the same as the method on the right side of Figure 2.

The cross-sectional structure of the longitudinal member A of this invention is as described above, with each aluminum section 13. 16. 20,21゜23.
24, 25, 28 and the decorative frame 18 are provided with a corrosion-resistant layer such as alumite over the entire surface.

Further, a spacer made of a steel plate or the like is placed between the left and right main frame members 11 to keep the distance constant.

Note that the reinforcing material and the sections are connected together, and the sections are connected to each other by engaging appropriate engaging portions and also using screws.

FIG. 4 shows the arrangement of the main frame members 11 of the longitudinal member A.
The left and right main frame members 11 are arranged vertically shifted, and the opposing portions of the upper and lower ends of the main frame member 11 on one side are connected to the main frame member 1 on the other side.
Bolt it to the middle part of 1.

By doing this, a large number of main frame members 11 are connected vertically.
It acts as a rigid body for the book.

In addition, the connecting portion is constructed by interposing a joint plate 29 made of a steel plate that also serves as a spacer between the left and right main frame members 11 as shown in FIG. By inserting the connecting bolt 31 inserted into the insertion hole 32 formed in the joint plate 29, and further inserting it into the vertical elongated hole 33 provided at the end of the other main frame member 11, and tightening with the nut 34, the main Expansion and contraction of the frame material 11 due to thermal changes is absorbed.

Reference numerals 35 and 36 in FIG. 5 indicate structural members at each stage of a high-rise building, and these structural members 35 and 36 are directly fixed to the main frame member 11 of the longitudinal member A using appropriate fittings and connecting bolts.

That is, the main frame member 11 becomes a part of the building structure by directly connecting to the building structural members 35 and 36.

As described above, in this invention, a pair of main frame members made of steel strips having bent edges facing in the same direction on both sides are arranged vertically back to back with each bent edge facing outward, and
The outside of each main frame member is covered with a solid section aluminum profile coated with a corrosion-resistant layer on the entire surface, and the main frame member is connected to the structural members of the building, and the aluminum profile is divided into sections for each floor. Since it is connected to the frame material using clips or bolts, the main frame material becomes part of the building structure, and the main frame material bears all of the external loads of the curtain wall, such as loads caused by wind pressure. , it is a decorative material whose strength is unrelated to a shape made of aluminum.

In addition, the expansion and contraction rate of the aluminum sections that make up the longitudinal members is greater than the expansion and contraction rate of the main frame material made of steel strips, but this difference in expansion and contraction rate can be explained by dividing the aluminum sections into each floor. be absorbed by installing it in the

In addition, because the decorative aluminum frame is connected to the main frame material using clips or bolts, it is similar to a conventional rectangular cylindrical aluminum frame with steel reinforcing material inserted into it. The looseness will disappear.

Furthermore, each form made of aluminum does not have a hollow body, but is a solid section, in other words, the entire surface is exposed to the outside, so when electrolytic corrosion resistance treatment such as alumite treatment is applied, all surfaces will be protected. A corrosion-resistant treatment layer is formed.

Therefore, corrosion resistance is significantly improved.

In addition, since the main frame made of raw material is directly connected to the building structure, it is suitable for fixing interlayer fireproof laminates.

[Brief explanation of drawings]

Figure 1 is an enlarged cross-sectional view of a conventional longitudinal member used in the curtain wall construction method, Figures 2 and 3 are enlarged cross-sectional views showing each side of the longitudinal member of the present invention, and Figure 4 is the main frame. FIG. 5 is an enlarged vertical cross-sectional view of the connecting portion of the materials, and FIG. 5 is a perspective view of the building structure. 11... Main frame material, 12... Bent edge, 13. 16,
20゜21. 23, 24, 25 river shape material, 18... front decorative peg 22... panel, 35, 36... structural material,
Longitudinal member for A.

Claims (1)

[Claims] 1 A pair of main frame members made of band-shaped steel materials with bent edges facing the same direction on both sides are arranged vertically back to back with each bent edge facing outward, and the outside of each main frame member is provided with corrosion-resistant coating on the entire surface. Covered with solid section aluminum profiles with a treated layer, the main frame members are bonded to the building structural members,
The aluminum profile is a longitudinal member used in the curtain wall construction method, which is divided into sections for each floor and connected to the main frame material using clips, bolts, etc.