JPS6221099B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to improvements in curtain walls, particularly curtain walls that hold window materials and wall materials in mullions and horizontal beams.

As a conventional curtain wall, for example, an aluminum curtain wall is known.
In this aluminum curtain wall, the mullions and horizontal bars are each formed from extruded aluminum members. Then, mullions are provided continuously in the vertical direction at predetermined intervals on the exterior of the building, horizontal bars are combined between the mullions to form a rectangular frame, and window materials, wall materials, etc. are held within this rectangular frame. Furthermore, a sealing material is interposed between the mullions and horizontal beams and the window and wall materials to prevent rainwater from entering the building.

However, although such conventional curtain walls have good corrosion resistance, the cost of aluminum is relatively high, which increases the cost. The expected dimensions of the window and wall materials, that is, the dimensions that protrude toward the building side, must be made larger.
The mullions and horizontal beams are correspondingly larger, and the space between the window and wall materials and the building exterior must also be larger, resulting in wasted space. It was difficult. In addition, in terms of sealing performance, it is assumed that the seal between the window material, wall material and the mullions and horizontal beams is ensured, and measures against seal failure are not considered. Once a seal failure (interfacial peeling) occurs due to defects or deterioration, there is a problem in that unless the seal is repaired, rainwater will enter the building and reduce the durability of the building.

In addition, in the past, mullions and horizontal bars were each formed from an outer side member and an inner side member, and an aluminum profile was used for the outer side member where there was a high risk of corrosion, and an aluminum profile was used for the inner side member where there was a low risk of corrosion. There are also known models that use shaped steel, but although this may be satisfactory to some extent in terms of cost, it still has the same problems as the conventional example above in other respects, and moreover, the weight In addition, the connection of both the mullion and horizontal beams is complicated, and since the steel shapes are standardized, the degree of freedom in selecting dimensions is limited, and the dimensional ratio between the web and flange sections is large. is constant, so if you try to increase the estimated dimensions of the web part, the dimensions of the flange part will become larger than the outer member, and adjustment will be necessary. It was difficult to apply it to curtain walls, which are finishing materials.

In addition, in the above and below, the outer member refers to the member that is exposed to the outside from the window material or wall material, and the inner member refers to the member located closer to the building than the window material or wall material. shall mean.

This invention was made by focusing on such conventional problems, and consists of combining horizontal bars between mullions that are continuously provided in the vertical direction at predetermined intervals on the exterior of a building, and installing window material within the rectangular frame. , in curtain wool that can hold the wall material, the mullions and horizontal bars are
Each member is made of an inner member made of steel plate and an outer member made of aluminum to reduce costs and have adaptability to construction conditions, and a through member is interposed between the inner and outer members of the horizontal crosspiece to facilitate lateral drainage. By forming the outer member of the mullion into a pipe shape and forming the inside thereof as a vertical drainage channel communicating with the horizontal drainage channel, it is possible to deal with seal failures. The purpose is to solve the above conventional problems.

The present invention will be explained below based on the drawings. 1 to 7 are diagrams showing an embodiment of the present invention. In the figure, 1 is a mullion, which is continuously provided in the vertical direction at predetermined intervals on the outer surface 2 of the building. 3 is a horizontal crosspiece, which is combined with the above-mentioned mullion 1. And these mullions 1
A rectangular frame 6 for holding glass 4 as a window material or panel 5 as a wall material is formed on the outer surface 2 of the building at the horizontal beam 3. In addition, mullion 1 and horizontal beam 3
are formed of inner members 7, 8 and outer members 9, 10, respectively, and between these inner members 7, 8 and outer members 9, 10, the edge of the glass 4 or panel 5 is sealed. It is held via a material 11, an adhesive 12, a spacer 13 made of hard rubber, and the like. Furthermore, the inner members 7 and 8 are not often exposed to rainwater, etc. but are required to have load-bearing strength.
are made of high-strength steel plates, and the outer members 9 and 10, which do not require much load-bearing strength but are exposed to rainwater, are made of highly corrosion-resistant aluminum, making efficient use of the characteristics of each material. At the same time, we are trying to reduce costs. Further, the inner members 7 and 8 made of steel plates are bent using a bender or the like. That is, the expected dimension l of the inner members 7 and 8 can be set in advance according to the conditions of each construction site to a dimension that has a load supporting strength that meets the conditions. Specifically, mullion 1
The inner member 7 is formed into a box-shaped cross section by a member 14 whose expected dimension l can be freely set according to the load supporting strength and a member 15 welded to this member 14. A bracket 16 for connecting the horizontal beams 3 is fixed to the member 14 via bolts and nuts 17, and an L-shaped connecting member 18 for the outer member 9 is welded to the member 15. This inner member 7 is fixed to a bracket 46 supported by base materials 45a and 45b on the building side via bolts and nuts 47, and its position can be adjusted freely through long holes in the bracket 46. Further, the inner member 8 of the horizontal beam 3 is formed into a U-shaped cross section with an expected dimension l corresponding to the inner member 7 of the mullion 1, and is fixed to the bracket 16 via screws 19. . A U-shaped connecting member 21 is welded in advance to the outer surface 20 of the inner member 8 along its longitudinal direction.
The inner members 8 are each fixed to a base material 22 disposed on the outer surface 2 of the building via screws 23. The aluminum outer members 9, 10 are each formed from a one-piece extrusion section. Specifically, the outer member 9 of the mullion 1 has a rectangular pipe shape, and a pair of connecting flanges 25 that can receive the connecting member 18 of the inner member 7 are provided on the inner surface 24 of the mullion 1 in the longitudinal direction. The connecting flange portion 25 and the connecting member 18 are connected by bolts 26. The outer member 9 has a rectangular pipe shape with a flat outer surface 26, but various pipe shapes other than the rectangular shape can be adopted, and the outer surface 26 is flat.
6 is not limited to being flat either. The outer member 10 of the horizontal beam 3 has a flat plate shape and is connected to the inner member 8.
A through member 27 passing through between the outer member 9 and the inner member 7 of the mullion 1 is interposed between them.
Specifically, the through member 27 is a U-shaped connecting member 2.
1 through screws 29, and this through member 2
An outer member 9 is fixed to 7 via bolts 30. In addition, the connecting member 1 of the inner member 7 in the mullion 1
Notches 31 and 32 for passing through the through member 27 are formed in the connecting flange portion 25 of the outer member 8 and the outer member 9, respectively. Further, a sealing material 40 is interposed between the inner member 7 and the through member 27 and between the outer member 9 and the through member 27, respectively. and,
A horizontal drainage channel 33 is formed above the passage member 27. Furthermore, the outer member 9 of the mullion 1
A water collection hole 34 communicating with the horizontal drainage channel 33 is formed at a corresponding position at the intersection with the horizontal beam 3, and a drainage hole 35 communicating with the outside is formed in the lower part of the outer member 9. A vertical drainage channel 3 is formed inside the member 9.
I'm trying to set it to 6. Note that the lower end of the outer member 9 is closed with a filling 42. Therefore, the horizontal drainage channel 33 and the vertical drainage channel 36 communicate with each other, and the rainwater that has entered the rectangular frame 6 can be reliably discharged to the outside for each floor. In addition, 37 is the floor position, 38 is the fireproof panel, 39 is the window opening, 41 is the joint material of the outer member 9, and 43 is the setting block.
3 has a drainage groove 44 formed therein.

Next, the effect will be explained. First, when assembling the curtain wall, the inner members 7 and 8 of the mullions 1 and the horizontal beams 3 are processed in advance to have an expected dimension l that has a load-bearing strength according to the construction conditions of the building. In this case, the dimensions of the inner members 7 and 8 can be freely set by bending the steel plates with a bender or other means. Therefore, it is easy to obtain the optimum dimensions for the construction conditions of the building, and there is no waste of materials. Economical. Next, the inner members 7 of the mullions 1 are vertically arranged on the building exterior surface 2 at predetermined intervals and fixed to the base material 22.
In this case, the upper and lower ends of the inner member 7 are at floor position 2, respectively.
It is located corresponding to 7. Then, the inner member 8 of the horizontal crosspiece 3 is suspended and fixed between the brackets 16 protruding from the inner member 7 at positions corresponding to the upper and lower edges of the window opening 39, and the inner member 8 is fixed to the base material 22. sticks to. In this case, the inner member 8 on the upper edge side of the window opening 39 is provided in an upwardly open state, and the inner member 8 on the lower edge side is provided in a downwardly open state to serve as a window sill. A connecting member 21 is welded to the inner member 8 in advance at the factory, and a through member 2 for passing through the mullion 1 is further attached to this connecting member 21.
Fix 7. And the inner member 7 of the mullion 1
The outer members 9 and 10 made of aluminum are respectively fixed to the through member 27 to form a rectangular frame 6, and the glass 4 or A curtain wall can be easily formed by inserting the edge of the panel 5 and applying sealant 11, adhesive 12, spacer 13, etc., and performing this process on each floor. Note that a joint material 41 is applied when connecting the outer members 9 in the vertical direction. Further, at the same time as the rectangular frame 6 is formed, a horizontal drainage channel 33 is formed above the through member 27, and the drainage channel 33 is formed inside the outer member 9.
Since a vertical drainage channel 36 communicating with the rectangular frame 6 is formed, poor installation or deterioration of the sealing material 11 may occur
Rainwater can be reliably drained to the outside at each floor location without allowing rainwater to enter the building no matter where it occurs. Furthermore, since the outer member 9 has a sufficient length,
A sufficient hydraulic head is obtained, and as a result, backflow of rainwater from the drainage hole 35 can be prevented, so that excellent watertightness can be obtained without the need for flushing or the like.

The above explanation assumes that a curtain wall will be formed on the exterior of a newly constructed building, but this example is not limited to this example. is also fully applicable.

As explained above, according to this invention,
The structure of the curtain wall is that horizontal bars are combined between the mullions that are continuously provided in the vertical direction at predetermined intervals on the outside of the building, and the window material and wall material can be held in the rectangular frame. and horizontal bars are each formed of an inner member made of a steel plate and an outer member made of aluminum, and a through member is interposed between the inner and outer members of the horizontal bars to form a horizontal drainage channel. Since the outer member is formed into a pipe shape and the inside is formed as a vertical drainage channel that communicates with the horizontal drainage channel, the cost is lower than when the mullions and horizontal bars are all made of aluminum. Moreover, sufficient load-bearing strength can be obtained even if the expected dimensions are small, and the distance between the building exterior and window materials and wall materials can be reduced to eliminate wasted space. Since it can be formed freely by bending, the optimum expected dimensions can be set for the construction conditions, eliminating wasted materials and improving economic efficiency. In addition, even if rainwater infiltrates due to poor installation or deterioration of the sealing material at any location on the rectangular frame, it can be reliably drained to the outside on each floor via the horizontal and vertical drainage channels.
This has the effect of improving watertightness accordingly.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of a curtain wall showing one embodiment of the present invention, and Figs.
FIG. 8 is an enlarged sectional view taken along the line in FIGS. 1... mullion, 2... building exterior, 3... horizontal beam, 4
...Glass as window material, 5... Panel as wall material, 6... Rectangular frame, 7, 8... Inner member, 9, 10... Outer member, 11... Sealing material,
12... Adhesive, 13... Spacer, 14, 15
... Member, 16 ... Bracket, 17 ... Bolt/nut, 18, 21 ... Connection member, 19, 2
3, 28, 29...screw, 20...outer surface, 22
... Base material, 24 ... Inner surface, 25 ... Connection flange portion, 26, 30 ... Bolt, 27 ... Passing member, 31, 32 ... Notch portion, 33 ... Horizontal drainage channel, 34...Water collection hole, 35...Drainage hole, 36
... Vertical drainage channel, 37 ... Floor position, 38
... Fireproof panel, 39 ... Window opening, 40 ... Seal material, 41 ... Joint material.

Claims (1)

[Scope of Claims] 1. A curtain wall in which horizontal beams are combined between mullions provided continuously in the vertical direction at predetermined intervals on the exterior of a building, and window materials and wall materials can be held within the rectangular frame. , the mullions and horizontal bars are each formed of an inner member made of steel plate and an outer member made of aluminum, and
A passage member is interposed between the inner and outer side members of the horizontal frame to form a horizontal drainage channel, and the outer member of the mullion is formed into a pipe shape, the inside of which is communicated with the horizontal drainage channel. A curtain wall characterized by being formed as a drainage channel.