JPH08184101A - Architectural method of building - Google Patents

Abstract

PURPOSE: To enable any deformation to be remedied in a beam framework as well as to prevent any rolling and vibration from occurring by installing a brace equipped with a length adjuster aslant in an interval between the circumference of the floor beam framework and the foundation, prior to the ascent of an upper layer part. CONSTITUTION: A beam framework 2 is installed on a building foundation 1 via a temporary small colume 5, and a roof truss 3 is installed on this beam framework 2 via another temporary small column 6 as well. Two braces 10 provided with a length adjuster 21 in the middle of a binding material 20 are installed in an interval between the circumference of the beam framework and the foundation 1. In addition, two inclined supports 11 are installed in space between a beam framework 8 of the roof truss 3 and the foundation 1 after both the ends are pivotally supported, and further four vertical supports 12 are erected there. These inclined supports 11 and vertical supports 12 are so structured that extension in the axial direction is allowed but contraction in this direction is checked the other way. In succession, the temporary small column 6 is removed away, making the roof truss 3 go up with a lifting gear, and the building-in of column and wall materials and the like constituting a building outer block in the lower side part is carried out. Any deformation in the beam framework 2 is remedied by the length adjuster 21, and any rolling, vibration and falling of the roof truss 3 are prevented by these inclined supports 11 and vertical supports 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building construction method.

[0002]

2. Description of the Related Art As a recent construction method of a building, a building foundation such as a concrete foundation is first constructed with a roof portion above it first, and then this roof portion is raised to a predetermined height by a lifting device such as a truck crane or a jack. Then, at the bottom of this roof part, the upper floor part (2nd floor living room, etc.)
Has been proposed, and after raising the upper floor portion, a construction method is proposed in which the lower floor portion (first floor living room, etc.) is constructed in the lower portion (see Japanese Patent Publication No. 5-30949 etc.).

By the way, in this type of construction method, before constructing a roof portion on a building foundation, a beam assembly to be a base (floor) of the upper floor portion and the lower floor portion is assembled on the building foundation in advance. It is normal to do. This beam structure is a frame that uses the shape steel to frame the plane contours of the upper and lower floors, but it is divided into a number of grids so that the inside of the entire frame shape becomes a grid pattern. At the same time, braces are erected in each cell in a hooked shape to increase overall rigidity. It should be noted that when the beam assembly is assembled, the outer peripheral corners and partition intersections form a predetermined angle (generally a right angle), so that the plane shape of the entire frame has a predetermined frame shape. Adjust the tension of the brace in the eye.

[0004]

After raising the upper layer side portion (roof portion or upper floor portion), the lower layer side portion (upper floor portion for the roof portion, or lower floor for the upper floor portion) with respect to the beam assembly is raised. When trying to construct a part, etc., the beam assembly may have a parallelogram-shaped deformation (distortion).
In particular, when the assembly of the beam assembly and the raising of the upper layer side portion are performed at different dates and times, the rate of occurrence of deformation and the degree of deformation tend to increase.

Conventionally, in such a case, it has been necessary to adjust the tension in braces in a plurality of cells, and in extreme cases, this tension adjustment may reach all the braces. . Therefore, it is extremely troublesome and has a drawback of delaying the construction period. The present invention has been made in view of the above circumstances, and prevents the beam assembly once assembled into a predetermined frame shape from being deformed in the process of ascending the upper layer side portion, and is simple in case of deformation. It is an object of the present invention to provide a building construction method capable of preventing the troublesome work and the delay in the construction period by making it possible to correct it.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is, the present invention, with respect to the building foundation, in the building construction method of the building, first constructing the upper layer side portion of the building, and then raising the upper layer side portion to a predetermined height and then constructing the lower layer side portion in the lower part thereof, It is characterized in that the brace is stretched and held in an inclined posture over a plurality of locations along the outer periphery of the beam assembly which is the base of the lower layer side portion and the ground fixed object.

[0007]

In the beam set, a plurality of points along the outer circumference of the beam set are pulled by braces to the ground fixed object, so that the beam set can be given tension along each side of the outer circumference. In this state, by waiting for the upper layer side portion to rise, the beam assembly can be held in a predetermined frame shape.

When the brace is provided with a length adjuster,
Even if the beam assembly is deformed, it can be corrected by operating the length adjuster.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1 showing a building under construction, 1 is a building foundation formed of concrete, 2 is a beam assembly that constitutes the floor of the upper floor, 3 is a shed assembly that constitutes the roof, and in the illustrated state, the building foundation Beam assembly 2 on the upper part of 1 via temporary pillar 5
Is installed, and then the shed assembly 3 is installed on the upper part of the beam assembly 2 via the temporary pillars 6.

Therefore, in the next stage, the beam set 2 is kept immovable, the temporary column 6 is removed, and the roof set 3 is raised by a lifting device (not shown) such as a jack (hereinafter, the roof set 3). Is the upper layer side portion (the reference numeral 3 is used), and the upper floor portion configured with the beam set 2 as the floor is the lower layer side portion). However, in the construction method of the present invention, the upper layer side portion 3 Before climbing up, first, the beam assembly 2 is tensioned and fixed by the brace 10 between the beam assembly 2 and the ground fixed object shown by the building foundation 1,
Between the beam set 8 and the building foundation 1 included in the upper layer side portion 3, a proper number of inclined columns 11 are installed in an inclined posture (the upper and lower ends thereof are in a pivotally connected state). ,
An appropriate number of vertical columns 12 are erected vertically.

Each of the tilted column 11 and the vertical column 12 has a structure in which expansion in the axial direction is allowed but its contraction is prevented. In the present embodiment, since the plan view of the beam assembly 2 is to construct a horizontally long rectangular building as shown in FIG. 2, the brace 10 is provided in the outer peripheral portion of the building, one at each corner near each surface, Make a total of eight,
Two inclined columns 11 are provided on each side of the outer circumference of the building,
In the illustrated example, a total of eight vertical columns 12 are provided, and four vertical columns 12 are provided on each of a pair of opposing surfaces, that is, a total of eight vertical columns 12.

The brace 10 (see FIG. 1) is a beam assembly 2.
Is provided in order to prevent deformation in a parallelogram shape in a plan view or to correct the deformed state, and a turnbuckle or the like is provided at an intermediate portion of the tightening material 20 such as a steel wire, a bolt material, or a wire. The length adjusting tool 21 of FIG. If such a brace 10 is provided, for example, in the case where the beam set 2 is deformed in a parallelogram shape, the beam set 2 is purposely designed to have a large number of grids in a grid pattern. The beam set 2 can be corrected by only adjusting the length of each brace 10 without the troublesome work of adjusting the tension of each brace 22 (see FIG. 2) individually.

The brace 10 may be fixed not to the foundation 1 but to a slab placed in the cloth foundation, or may be stretched outward as indicated by reference characters A and B in FIG. It suffices that the other end of the beam assembly 2 is connected to the ground fixed object. The inclined column 11 (see FIG. 1) is provided mainly to prevent the upper layer side portion 3 from rolling and twisting during and after the ascent, and is shown in FIG. 3 (a). Thus, it has a double shaft structure in which the extension shaft 24 is inserted so as to be slidable upward with respect to the lower base cylinder 23 to the extent that it has no play.

A square pipe is used as the base cylinder 23, and a lower pivotal support piece 25 for pivotally connecting to the building foundation 1 (see FIG. 1) and the like is provided at the lower end portion thereof. Further, a rectangular pipe or a rectangular rod, which is slightly thinner than the base cylinder 23, is used for the extension shaft 24, and the upper layer side portion 3 (see FIG.
The upper pivot support piece 26 for pivotally connecting to the beam assembly 8 and the like of the reference) is provided.

A degeneracy prevention device 26 is provided at the upper end of the base tube 23.
Is provided. The degeneracy prevention device 28 includes a square hole 30.
A brake plate 30 having a is fitted on the extension shaft 24, and the brake plate 30 can be pressed upward by a bolt 31 on one side of the extension shaft 24 and by a spring 32 on the opposite side via the extension shaft 24. It is designed to be pulled downwards.

In the thus-obtained inclined column 11, first, the bolt 31 is tightened and the brake plate 30 is set so as to be inclined with respect to the extension shaft 24 as shown in FIG. In this state, with respect to the movement of pulling out the extension tube 24 from the base tube 23, the brake plate 30 tilts upward toward the spring 32 and approaches the state orthogonal to the extension axis 24, so that the extension tube 24 is pulled out. (I.e., elongation) is allowed, but when the extension cylinder 24 tries to return to the inside of the base cylinder 23, the inner edge of the square hole 30a of the brake plate 30 is pressed against the outer peripheral surface of the extension cylinder 24 to extend. The return (ie, shrinkage) of the shaft 24 becomes blocked.

If the bolt 31 is loosened,
As shown in FIG. 3A, since the brake plate 30 is orthogonal to the extension shaft 24, it goes without saying that the extension shaft 24 can be freely taken in and out of the base cylinder 23. In the present embodiment, a collar 35 for preventing overtightening is inserted near the root (downward) of the bolt 31, and the brake plate 30 or the bolt 31 itself bends or bends due to overtightening, or the extension shaft 24. It is designed to prevent damage to the outer surface of the.

Further, a collar 36 for preventing excessive loosening is inserted toward the tip (upper side) of the bolt 31, so that excessive loosening causes a braking force due to the reverse inclination of the brake plate 30. It has been prevented. Furthermore, spring 3
2 is inserted into the protective cylinder 37 so that its expansion and contraction is not disturbed by contact interference with other objects.

FIG. 4 shows another embodiment of the degeneracy prevention device 28. In this embodiment, a pivot shaft 40 is arranged near the bolt 31 with respect to the brake plate 30, and an auxiliary brake plate 41 is provided.
The auxiliary brake plate 41 is urged by the spring 42 in the direction of opening upward from the brake plate 30. The auxiliary brake plate 41 also has a square hole 41a into which the extension shaft 24 is fitted.
Further, unlike the degeneracy prevention device 28 shown in FIG. 3, the spring 32 is not provided.

In this degeneration prevention device 28, when the brake plate 30 is tilted by tightening the bolt 31, the auxiliary brake plate 41 is tilted in the direction opposite to the brake plate 30, and the inner edge of the square hole 41a is extended. The outer peripheral surface of 24 is pressed. When the extension shaft 24 is pulled out from the base cylinder 23 in this state, the brake plate 30 is pulled up so as to approach a state orthogonal to the extension shaft 24 (see a dashed arrow), and
Since the auxiliary brake plate 41 also approaches the state orthogonal to the extension axis 24, the extension cylinder 24 can be pulled out (that is, extended). However, when the extension cylinder 24 tries to return to the inside of the base cylinder 23, the brake plate 30
The auxiliary brake plate 41 is inclined as shown in the drawing, and the inner edges of the square holes 30a and 41a are pressed against the outer peripheral surface of the extension shaft 24, so that the extension shaft 24 is prevented from returning (ie, contracting). Becomes

When the extension shaft 24 is to be returned (contracted) to the inside of the base cylinder 23, the grip pieces 30b and 41b projecting from the brake plate 30 and the auxiliary brake plate 41 may be gripped in the mutual proximity direction. . In addition, this inclined support 11
Both of FIGS. 3 and 4 can be used upside down, but considering the convenience of use of the degeneracy prevention device 28, it is preferable that the base tube 23 is down.

The vertical column 12 (see FIG. 1) is mainly composed of
It is provided in order to prevent the upper layer side portion 3 from falling during and after the ascent, and the pillar 1 shown in FIGS.
It is also possible to adopt 1. By the way, in the said Example, although the inclination pillar 11 and the vertical pillar 12 are provided in the position used as the outer side of a building, at least one (preferably both) of both pillars 11 and 12 is indoors in the upper layer side part 3. It may be arranged in a space.

In this way, when the upper layer side portion 3 is lifted up and then the building is started from the pillar material or the wall material (inner wall, outer wall) or the like constituting the building outer wall to the lower portion of the upper layer side portion 3. Further, there is little interference with the building work, and the inclined support column 11 and the vertical support column 12 can be attached for as long as possible. In other words, there is an advantage that the upper layer side portion 3 can be prevented from rolling and twisting and can be prevented from falling.

Further, the brace 10 can also be installed inside the outer periphery of the beam assembly 2, that is, between the inner peripheral surface of the iron aggregate framing the outer peripheral portion and the inner peripheral surface of the building foundation 1. . The number and location of the braces 10 used are not limited in any way. Note that the brace 10 may use a bar material (fired material) that does not include the length adjusting tool 21.

The present invention can be applied not only to a building having two or more floors but also to a first floor building. In addition, other detailed procedures and the like in the present invention can be appropriately changed according to the embodiment.

[0026]

According to the present invention, which has the above-mentioned structure, since the beam set is pulled at a plurality of locations along the outer periphery of the beam set by the braces to the ground fixed object, the beam set is assumed. Even when the assembly of the set and the rise of the upper layer side portion are performed at different dates and times, the beam set does not deform into a parallelogram shape until the upper layer side portion is completely raised, It is held in a predetermined frame shape. Therefore, it is not necessary to adjust the tension of many braces provided in the frame of the beam assembly, and it is possible to prevent troublesome work and delay of the construction period.

Further, if the brace is provided with a length adjusting tool, even if the beam assembly is deformed, the beam assembly can be corrected by operating the length adjusting tool, so that the work is easy. You can do it. Therefore, also in this respect, it is possible to prevent troublesome work and delay of the construction period. By providing such braces, it is possible to prevent rolling and vibration of the beam assembly, so it is easy to construct the lower layer portion on this beam assembly after the upper layer portion is lifted. Moreover, there is an advantage that it can be performed with high accuracy.

[Brief description of drawings]

FIG. 1 is a side view showing a main procedure of a construction method according to the present invention.

FIG. 2 is a schematic plan view showing a building under construction.

FIG. 3 (a) is a partially crushed front view showing an inclined column with the middle omitted, and FIG. 3 (b) is an operation explanatory view thereof.

FIG. 4 is a front cross-sectional view showing another embodiment of the degeneration prevention device included in the inclined column.

[Explanation of symbols]

 1 Building foundation 2 Beam assembly (which becomes the floor of the upper floor) 3 Shed assembly (explained as upper layer side) 10 Brace 11 Inclined column 12 Vertical column

Claims (1)

[Claims] 1. A building construction method for a building, wherein an upper layer side portion of a building is first constructed with respect to a building foundation, and then the upper layer side portion is raised to a predetermined height, and then a lower layer side portion is constructed below the upper portion. A construction method for a building, characterized in that braces are stretched and held in an inclined posture over a plurality of locations along the outer periphery of the beam assembly that is the base of the lower layer side portion and the ground fixed object.