JPH10231620A - Assembly type beam material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change the height of a beam material in response to application, and to obtain specified strength. SOLUTION: In the assembly type beam material 1, a beam material 100 is separated into an upper chord material 2, a lower chord material 3 and adjusting materials 4, and the upper chord material 2 and the lower chord material 3 are formed of an extruded material. Engaging groove sections engaged with the end sections of the adjusting materials 4 are formed to the connecting sections 2a, 3a of the upper chord material 2 and the lower chord material 3, and the adjusting materials 4 are interposed between the connecting sections 2a, 3a of the upper chord material 2 and the lower chord material 3. One end sections of the adjusting materials 4 are engaged with the engaging groove sections of the upper chord materials 2 and the other end sections with the engaging groove sections of the lower chord material 3, and the adjusting materials 4 and the upper chord material 2 and the lower chord material 3 are joined by connecting materials.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembling beam material used for a formwork of a building or the like.

[0002]

2. Description of the Related Art For example, thick materials used for large formwork of buildings include:
Beam materials such as wooden beams, steel beams, and aluminum beams are used.

[0003]

By the way, the conventional beam member has a constant height, and when the cross section of the frame is changed, for example, the beam member is assembled using a wide angle corner or an auxiliary member.
For this reason, the formwork is deformed during the transfer when the formwork is diverted, or a partial stress concentration occurs, greatly affecting the formwork accuracy of the formwork assembly set, and as a result, a predetermined body accuracy is obtained. May not be possible.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an assembling beam material in which the height of the beam material can be changed according to the application and a predetermined strength can be obtained.

[0005]

In order to solve the above-mentioned problems and to achieve the object, according to the first aspect of the present invention, there is provided an assembled beam material which separates the beam material into an upper chord material, a lower chord material and an adjusting material. The upper chord material and the lower chord material are formed of extruded material, and an engagement groove portion that engages with the end of the adjustment material is formed at a connection portion between the upper chord material and the lower chord material, and the upper chord material and the lower chord material are formed. An adjusting member is interposed between the connecting portions, and one end of the adjusting member is engaged with the engaging groove of the upper chord, and the other end is engaged with the engaging groove of the lower chord.
The adjustment member and the upper chord member and the lower chord member are joined by a connecting member.

According to the first aspect of the present invention, the strength of the beam member can be changed by changing the height of the adjusting member. For example, by forming a plurality of height positions of the adjusting member, a mold in consideration of the unevenness of the skeleton is provided. A frame is formed, assembly and disassembly can be easily performed, and assembly can be performed according to the work contents and design conditions of the work, thereby eliminating waste.

[0007] Further, in the case where the beam member is integrally formed as in the conventional case, a large die is required, and the cost increases.
By separately forming the upper chord material and the lower chord material, it is possible to form the upper chord material and the lower chord material having high-precision cross sections at a low cost by a small extruder. Further, by changing the height of the adjusting member, a beam member having a predetermined strength according to the use can be obtained. Furthermore, by connecting the ends of the adjusting material to the engaging grooves of the upper chord material and the lower chord material and joining them with a connecting material such as a bolt or a nail, the connection is simple and strong.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a prefabricated beam member according to the present invention. FIG. 1 is a perspective view of an assembling beam material, FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
FIG. 3 is a diagram showing an adjusting material.

The assembling beam 1 is used, for example, for a mold, and FIGS. 1A and 1B show different directions of view. The beam 100 is an upper chord 2 and a lower chord 3. And adjustment material 4
And formed separately. The upper chord material 2 and the lower chord material 3 are formed to a predetermined length by, for example, an extruded material of an aluminum alloy. The interval between the upper chord member 2 and the lower chord member 3 can be changed by using the adjusting member 4, and the larger the distance between the upper chord member 2 and the lower chord member 3, the better the cross-sectional performance.

The cross-sectional shapes of the upper chord 2 and the lower chord 3 are formed as shown in FIG. 2, and are extruded from an aluminum alloy to have high precision, light weight and predetermined strength. The connecting portions 2a, 3a of the upper chord material 2 and the lower chord material 3 have engagement grooves 2b, 3b which engage with the ends of the adjusting material 4, and have both ends 2c, 3c.
3c has ribs 2d and 3d for obtaining a predetermined strength.
Further, mounting holes 2e, 3e are formed at predetermined intervals in connecting portions 2a, 3a of the upper chord material 2 and the lower chord material 3,
Windows 2f and 3f are formed between e and 3e.

The adjusting member 4 is made of, for example, an extruded aluminum alloy as shown in FIG. The adjusting member 4 has a hollow shape having a long side portion 4a and a short side portion,
A mounting bolt insertion hole portion 4d is formed in a wall portion 4c formed at the center of the long side portion 4a, and the short side portion 4b is formed thick to have rigidity.

An adjusting member 4 is interposed between the connecting portions 2a, 3a of the upper chord member 2 and the lower chord member 3. One end of the adjusting member 4 is engaged with the engaging groove 2b of the upper chord member 2, and the other end is connected to the lower chord member 3. Engagement groove 3b
And the adjusting member 4 is joined to the upper chord member 2 and the lower chord member 3 by the connecting member 5. In this embodiment, the connecting member 5 is
It is composed of a mounting bolt 6, washers 7, 8 and a nut 9,
The crosspiece 10 is engaged with the connecting portion 2a on the head side of the mounting bolt 6. The pier 10 can be nailed to other wooden members. In addition, in assembling with a not-shown facing formwork, for example, a formwork fastener is passed through the mounting window 2f of the upper chord material 2,
The horizontal pipe can be supported by a rib washer provided on the mold fastener.

[0013] The conventional method of integrally forming the beam material requires a large metal mold and increases the cost. However, since the upper chord material 2 and the lower chord material 3 are separately formed, high accuracy can be achieved by a small extruder. The upper chord 2 and the lower chord 3 having a cross section can be formed at low cost. Further, by changing the height of the adjusting member 4, the beam member 1 having a predetermined strength corresponding to the intended use can be obtained.
00 is obtained. Further, since the ends of the adjusting member 4 are engaged with the engaging grooves 2b, 3b of the upper chord member 2 and the lower chord member 3, the movement of the adjusting member 4 in the direction orthogonal to the engaging groove portions 2b, 3b is restricted. The connection member 5 can be easily and firmly connected.

FIG. 4 is a sectional view of another embodiment of the assembled beam member. The beam member 100 of this embodiment is formed separately from the upper chord member 2, the lower chord member 3, and the adjusting member 4, but the shapes of the connecting portions 2a and 3a of the upper chord member 2 and the lower chord member 3 are different. . A crosspiece 40 is engaged with the connecting portion 2a of the upper chord material 2. A pair of ribs 2a1 and 3a1 project from the connecting portion 2a of the upper chord member 2 and the connecting portion 3a of the lower chord member 3 to form deep engaging grooves 2b and 3b. Both ends of the adjusting member 4 are engaged. The adjusting member 4 is provided from the mounting holes 2a2 and 3a2 of the ribs 2a1 and 3a1.
The mounting bolts 41 constituting the connecting member 5 are inserted into the through holes 4e at both ends of the mounting bolts 41, and the nuts 42 are screwed to the distal ends of the mounting bolts 41 and fastened and fixed.

The adjusting member 4 may be any material having a rigid sectional shape such as a flat plate or a hollow member, such as a plywood or an extruded aluminum alloy.

FIG. 5 is a side view of another embodiment of the assembled beam member. The assembly type beam member 1 is shown in FIGS.
5 (c), the upper chord 2 and the lower chord 3 are longer in the order of FIG. 5 (c), and the adjusting members 4 have the same length. This assembling beam member 1 is also selected and used according to the application.

Next, a mold using an assembling type beam member will be described. FIG. 6 is a side view showing a state in which a plywood is attached to a prefabricated beam member, and FIG. 7 is a perspective view of a mold. A plurality of assembling beam members 1 are vertically arranged in the formwork, and a long upper chord material 2 and a short upper chord material 2 are used in accordance with the formwork. Through the short upper chord 2
Is connected to the lower chord member 3 via a short adjusting member 4. The distance between the upper chord material 2 and the lower chord material 3 can be changed by using the long adjustment material 4 and the short adjustment material 4, and the upper chord material 2 and the lower chord material 3 can be changed.
The cross-sectional performance is improved as the distance between them is larger.

A plywood 3 is attached to the upper chord 2 of the assembling beam 1.
Numeral 0 is fixed to a pier (not shown) with nails or the like, and the plywood 30 is further fixed to the assembled beam member 1 via fastening bolts 32, nuts 33 and washers 34. The fastening bolt 32
Through the windows of the upper chord 2 and the lower chord 3, a washer 34 is applied to the lower chord 3, and a nut 33 is screwed to a fastening bolt 32 to be tightened. A pier 35 is fixed to the plywood 30 in the vertical direction.

When this formwork is assembled with an opposing formwork (not shown), for example, a formwork fastener 20
, And a rib 22 in the lateral direction can be supported by a rib washer 21 provided on the form fastener 20.

In the assembled beam member 1, the strength of the beam member can be changed by changing the height of the adjusting member 4. For example, by forming a plurality of height positions of the adjusting member 4,
A formwork that takes into account the unevenness of the skeleton can be made, assembly and disassembly can be simplified, and assembly can be performed according to the work content and design conditions of the work, eliminating waste. Further, for example, by changing the height position of the adjusting member 4, it can be arbitrarily designed at the entrance and exit corners of a wall, a beam formwork or the like.

Next, another embodiment of a mold using an assembling beam will be described. FIG. 8 is a side view showing a state in which a plywood is attached to a prefabricated beam member, and FIG. 9 is a perspective view of a mold. In the formwork of this embodiment, the length of the adjustment member 4 connected to the long upper chord member 2 of the assembling beam member 1 is longer than the adjustment member 4 shown in FIGS. Are configured in the same manner, the same reference numerals are given and the description is omitted.

[0022]

As described above, according to the first aspect of the present invention, the strength of the beam member can be changed by changing the height of the adjusting member. , A formwork taking into account the unevenness of the skeleton is created,
Assembly and disassembly can be performed easily, and assembly can be performed according to the work content and design conditions of the work, thereby eliminating waste.

Further, in the case where the beam member is integrally formed as in the conventional case, a large die is required, and the cost is increased.
By separately forming the upper chord material and the lower chord material, it is possible to form the upper chord material and the lower chord material having high-precision cross sections at a low cost by a small extruder. Further, by changing the height of the adjusting member, a beam member having a predetermined strength according to the use can be obtained. Furthermore, by connecting the ends of the adjusting material to the engaging grooves of the upper chord material and the lower chord material and joining them with a connecting material such as a bolt or a nail, the connection is simple and strong.

[Brief description of the drawings]

FIG. 1 is a perspective view of an assembled beam member.

FIG. 2 is a sectional view taken along the line II-II of FIG. 1 (b).

FIG. 3 is a diagram showing an adjusting material.

FIG. 4 is a sectional view of another embodiment of the assembled beam member.

FIG. 5 is a side view of another embodiment of the assembled beam member.

FIG. 6 is a side view showing a state in which a plywood is attached to a prefabricated beam member.

FIG. 7 is a perspective view of a mold.

FIG. 8 is a side view of another embodiment showing a state in which a plywood is attached to a prefabricated beam member.

FIG. 9 is a perspective view of another embodiment of the mold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Assembly type beam material 2 Upper chord material 2a Connection part of upper chord material 2 3 Lower chord material 3b Connection part of lower chord material 3 4 Adjusting material 5 Connection material 100 Beam material

Claims (1)

[Claims] 1. A beam material is separated into an upper chord material, a lower chord material, and an adjusting material, and the upper chord material and the lower chord material are formed by extruded material, and an end of the adjusting material is connected to a connecting portion between the upper chord material and the lower chord material. Forming an engaging groove portion for engaging the upper chord material and the lower chord material, and having one end of the adjusting material having an engaging groove portion of the upper chord material and the other end being An assembling type beam member, wherein the adjusting member is joined to the upper chord member and the lower chord member by a connecting member by being engaged with an engagement groove portion of the lower chord member.