JPH0584857B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for performing comprehensive performance tests on external walls of buildings, window glass, etc.

(Prior art) In recent years, as buildings have become taller, there has been a demand for improved watertightness, wind pressure resistance, and ability to follow interstory displacement of exterior walls, window glass, etc., and various devices have been developed to test each of these performances. .

As shown in FIGS. 12A, B, and C, each of these test devices is equipped with a pressure box 100 and a specimen frame 101, and the pressure box 100 is connected to a pressure air and suction source such as a blower, and air is supplied to one side. A specimen frame 101 is provided with openings 102 for blowing and suction.
A specimen 104 such as a full-sized wall material is attached to the frame 103 via a frame 103.

When performing watertightness and wind pressure resistance tests on the specimen 104, it is necessary to ensure airtightness between the wind pressure chamber 105 and the outside, so in the case of the device shown in FIG. airtight frame 107 and opening 10 of pressure box 100
2 with an airtight material such as a sheet membrane, and
In the apparatus shown in FIG. 2B, the space between the airtight frame 107 attached to the specimen 104 and the opening 102 of the pressure box 100 is sealed with a sheet membrane 106.

(Problems to be Solved by the Invention) In the apparatus shown in FIGS. 12A and 12B, the sheet membrane 10 is
6 to the opening 102 of the pressure box 100 and the airtight frame 1
The sheet membrane 106 must be attached to both sides of the membrane 07, and this work is time-consuming, especially since the sheet membrane 106 is attached using a large number of bolts at small pitches to ensure airtightness.

In addition, the test equipment is not only used for wind pressure tests but also for interlayer displacement tests, and in this case, the pressure box 100 is
Displace 03. If the displacement is small, it can be followed by the deformation or sagging of the sheet membrane, but since there is a limit to the deformation or sagging, if a large displacement is to be applied, one end of the sheet membrane 106 is connected to the opening 10 of the pressure box.
2 or must be removed from the airtight frame 107.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the performance testing device according to the present invention provides an elastic test device having a pair of walls that expand and expand in a V-shape on one side of the pressure box or the specimen frame. A seal member was attached, and a receiving plate that was in close contact with the seal member was provided on the other side of the pressure box or the specimen frame.

(Function) By advancing the specimen frame with the specimen attached toward the pressure box, the sealing member comes into contact with the receiving plate, airtightly separating the wind pressure chamber from the outside, and in this state, watertightness and wind pressure resistance tests are performed. By subsequently retracting the specimen frame, the close contact between the seal member and the receiving plate is released, and the interlayer displacement test is conducted in this state.

(Example) Examples of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an overall view of the performance testing device according to the present invention,
FIG. 2 is a plan sectional view of the main part of the device.

The performance test apparatus consists of a pressure box 1 and a specimen frame 2, the pressure box 1 is connected to a blower (not shown), etc., and has an opening 3 formed on the surface facing the specimen frame 2,
By driving the blower, air is blown out or sucked from the opening 3.

Further, the specimen frame 2 is supported on a rail 4 via a caster 2a, and the specimen frame 2 is moved forward and backward relative to the opening 3 of the pressure box 1 by rotating the caster 2a by driving a motor (not shown). An airtight frame 5 is provided on the vertical axis of the specimen frame 2,
This airtight frame 5 is fixed to a body frame (not shown) to which the specimen 6 is attached, and is caused to reciprocate (vibrate) by a hydraulic mechanism (not shown). Then, the space between the inner airtight frame 5 and the outer airtight frame 5 is closed with a sheet 7,
A receiving plate 8 is attached to the outer airtight frame 5.

On the other hand, a sealing member 10 is provided on the outer periphery of the opening 3 of the pressure box 1 via a metal mounting plate 9.
This sealing member 10 is made of an elastic material such as neoprene rubber (chloroprene rubber), and its shape is the third
As shown in the figure, a pair of waist portions 16, 16 extend from the thick base 11 fitted into the mounting plate 9 toward the receiving plate 8 of the specimen frame 2, and these waist portions 16,
16 are opened and expanded in a V-shape, and wall portions 12, 12 are provided at the tip of each waist portion 16, 16.
and thin-walled fins 13, 13 are integrally provided.

Here, the hardness and dimensions of the elastic material constituting the seal member 10 vary depending on the design wind pressure, etc., but in a normal test, that is, when the dimensional error of the receiving plate 8 is ±20 mm and the wind pressure is about ±800 kg/m ² The hardness of the elastic material is approximately 50 degrees, the opening degree of the waist portion 16 is 40 to 80 degrees, the thickness of the wall portion 12 is approximately 6 mm, the thickness of the fins 13 is approximately 2 mm, and the length is approximately 50 degrees.
It is preferably 10 to 20 mm. Also, seal member 1
The airtightness of the waist part 11 is determined by the thickness (bending rigidity) of the waist part 16 and the frictional force between it and the receiving plate 8. However, if the thickness of the waist part 16 is too large, the force required for crimping becomes large, so It is preferable to set it to 12 mm.

Further, the space formed between the waist portions 16, 16 and the wall portions 12, 12 of the sealing member 10 is divided by a partition plate 14 at predetermined intervals. Here, partition plate 1
4 is made of an elastic material softer than the elastic material forming the waist portions 16, 16 and the wall portion 12, such as marine sponge. By connecting the waist portions 16, 16 and the wall portions 12, 12 with the partition plate 14 in this way, the waist portions 16, 16 and the wall portions 12, 1 are connected at the time of sealing.
Even if 2 is in close contact with the receiving plate 8 and widely expanded, the receiving plate 8
When the close contact with the sealing member 10 is released, it easily returns to its original shape, and by dividing the space between the waist portions 16, 16 and the wall portions 12, 12 with a large number of partition plates 14, a part of the sealing member 10 can be temporarily removed. Even if a defect occurs in the seal member 10, air is prevented from flowing in or out from the entire circumference of the seal member 10.

By the way, the overall shape of the sealing member 10 is the opening 3.
It has a rectangular shape that follows the outer periphery of the plate 8, and the corners are extremely deformed when in close contact with the receiving plate 8.
Therefore, as shown in FIG. 4, the corners of the sealing member 10 are continuous with an elastic material 15 having the same large deformation rate as the elastic material constituting the partition plate 14.

In the above, in order to perform a wind pressure test on the specimen 6, the specimen 6 is fixed to the main body frame (not shown) of the specimen frame 2, the specimen is surrounded by an airtight frame 5, and the space between the airtight frames 5 is is closed with a sheet 7, the specimen frame 2 is moved forward in the direction of the pressure box 1, and the receiving plate 8 attached to the airtight frame 5 is closed to the pressure box 1.
By bringing the receiving plate 8 into contact with the seal member 10 attached to the seal member 10 in this manner, a wind pressure chamber S is formed between the pressure box 1 and the specimen frame 2.

When performing a positive pressure test on the specimen 6, air from a blower is supplied to the air pressure chamber S through the opening 3 of the pressure box 1. Then, as shown in FIG. 5A, the inner wall 12a of the sealing member 10 curves outward, and the inner surface of the tip of the inner wall 12a comes into close contact with the receiving plate 8, thereby separating the wind pressure chamber S and the outside. An airtight condition is maintained. Here, in this example,
Since thin-walled fins 13 are continuously formed at the tip of the wall portion 12, installation errors of the receiving plate 8, etc.
Even if the test is conducted with the wall 12 and the receiving plate 8 not in contact with each other, the tips of the fins 13 are in contact with the receiving plate 8, so when the pressure inside the wind pressure chamber S is small, the fins 13 will not be in contact with each other. Since the inner surface of the tip comes into close contact with the receiving plate 8, airtightness can be ensured, and when the pressure inside the wind pressure chamber S increases, the inner surface of the wall portion 12a comes into close contact with the receiving plate 8.

Furthermore, in the case of a negative pressure test, as shown in FIG. It comes into contact with the plate 8 to maintain an airtight state.
Regarding the action of the fins 13, the inner and outer walls 12
The same applies to a and 12b.

As described above, in the sealing member 10 of the present invention, the greater the degree of positive pressure or negative pressure in the wind pressure chamber S, the stronger the wall portion 12 is in pressure contact with the receiving plate 8, so that the friction between the wall portion 12 and the receiving plate 8 is The force is also large and airtightness can be maintained reliably.

FIG. 6 is a perspective view of a pressure box 1 according to another embodiment, in which the opening 3 of the pressure box 1 is narrowed to match the size of the specimen 6.

That is, the pressure box 1 is closed with panels 20, 20 on both sides, and a seal member 21 other than the seal member 10 is attached to this panel 20.
The upper and lower ends of 1 are connected to the seal member 10.

7 to 11 show a method of supporting the panel 20. The panel 20 is attached to a body frame made up of vertical steel members 22 and horizontal steel members 23, and the upper and middle stages are Steel material 23
is attached to the pressure box 1 via a reinforcing plate 24 as shown in FIG. 8, the lower steel material 23 is positioned and fixed to the pressure box 1 via a pin 25 as shown in FIG. As shown in Figure 11, reinforcing plate 2
4, and a sealing material 26 is interposed between the reinforcing plate 24 and the steel members 22, 23 to ensure airtightness.

As in this embodiment, if the area of the opening 3 of the pressure box 1 is narrowed to match the size of the specimen 6, there is no need to block the area around the specimen with a sheet or the like, so the floor height of the specimen can be changed. When relocating the main body frame, there is no need to remove and install airtight frames, sheets, etc.

In the illustrated example, a sealing member was not provided on the airtight frame of the specimen frame, but a sealing member was provided on the pressure box side, so that there was no need to attach or remove the sealing member, but the airtightness of the specimen frame A sealing member may be provided on the frame.

(Effects of the Invention) As explained above, according to the present invention, a sealing member is provided on one side of the pressure box for performing a performance test of a specimen and a specimen frame, and a receiving plate that abuts the sealing member is provided on the other side, and furthermore, a sealing member is provided on the other side. Since the member is composed of a pair of walls made of an elastic material that expands and expands in a V-shape, there is no need to attach and detach the seal member each time a test is performed, as is the case in the past. Furthermore, even if the amount of interlayer displacement is large, the test can be conducted without removing the seal member.

Furthermore, since the opening area of the pressure box can be easily changed, there are many advantages such as eliminating the need to block the space between the airtight frame of the specimen frame and the specimen with a sheet or the like.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a test device according to the present invention;
Fig. 2 is a plan sectional view of the main parts of the device, Fig. 3 is an enlarged perspective view of the sealing member, Fig. 4 is a view showing the corner of the sealing member, and Figs. 5A and B show the action of the sealing member. 6 is a perspective view of a pressure box according to another embodiment, FIGS. 7 to 11 are diagrams explaining how to attach a panel that closes the opening of the pressure box, and FIGS. 12A and B are views of a conventional pressure box. FIG. 3 is a plan cross-sectional view of the main parts of the test device. In the drawings, 1 is a pressure box, 2 is a specimen frame, 3 is an opening, 6 is a specimen, 7 is a sheet, 8 is a receiving plate, 10 is a sealing member, 11 is the base of the sealing member, and 12 is the sealing member. Wall portion, 13 is a fin of a sealing member, 1
4 is a partition plate, and 16 is a waist part.

Claims (1)

[Claims] 1. A pressure box connected to a pressure air source or suction source and having an opening for blowing out or suctioning air on one side, and a specimen frame to which a specimen such as an outer wall is fixed, and which is movable in and out of the opening of the pressure box. A performance testing device comprising: a sealing member attached to one of the pressure box and the specimen frame, the sealing member being made of an elastic material and provided on the other of the pressure box and the specimen frame; A performance testing device for external walls of structures, etc., characterized by having a pair of walls that expand in a V-shape toward a receiving plate.