JP5231376B2 - Method for forming wooden residual formwork - Google Patents

Description

  The present invention relates to a method for forming a wooden remaining formwork.

  The wooden remaining formwork is used as a formwork for placing concrete, for example, when forming a concrete structure for preventing the collapse of earth and sand. The concrete remains without being removed after the concrete is hardened. It is made to remain on the surface of the structure.

  As disclosed in Utility Model Registration No. 3106211 filed by the present applicant, the wooden residual formwork is formed by fixing a plurality of rod-shaped timbers to a support member such as a shape steel in parallel. It is.

  When forming a wooden residual formwork, generally, as shown in FIG. 12, a plurality of support members 1 such as shaped steel are erected on the ground at a predetermined interval, and a plurality of rod-shaped support members 1 are formed on the support member 1. A method of fixing the timber 3 one by one from the lower side in the horizontal direction (hereinafter referred to as “conventional method for forming a remaining wooden form”) is employed.

Utility Model Registration No. 3106211

  However, in the conventional method for forming the remaining wooden form, the worker lifts the bar-like timber one by one in a horizontal state and fixes it to a support member standing on the ground. For example, there is a weight of about 50 kg, and it is heavy labor to lift such a heavy bar-like timber horizontally and fix it to the support member, which requires a long work time and a large number of workers, and labor costs are high. Bulky. Such heavy labor often causes back pain. In addition, since the worker must hold the bar-shaped wood by hand, if the bar-shaped wood is a log with a bark of the wood, the worker's body may become dirty and the fingers may be injured. In particular, when forming a wooden residual formwork in the vicinity of an inclined surface, an operator will work for a long time in a narrow gap between the inclined surface and the wooden residual formwork, and there is a risk of collapse of the inclined surface. Exposed.

  The present invention solves the above-described problems in the conventional method for forming a remaining wooden form so that the remaining wooden form can be formed easily, safely and in a short time by a small number of workers. The present invention has been made in an attempt to provide a method for forming a wooden residual formwork.

  In order to solve the above-described problems, the present invention provides the following method for forming a remaining wooden formwork.

(1) A pillow is arranged on the ground in the vicinity of the place where the wooden residual form is provided, and the pillow is provided with a rod-shaped wood positioning means, and a predetermined number of the rod-shaped wood is placed on the pillow. The main support member is placed on the rod-like wood at a right angle to the rod-like wood, and each rod-like wood is fixed to the main support member by fixing means. Forming a mold body by cutting and aligning the ends, lifting the mold body by a lifting means, and standing at a predetermined position (Claim 1) .

(2) One end of the main support member protrudes outward from the rod-shaped member at the edge corresponding to the one end to form a protruding portion, and a holding margin when the protruding portion is lifted by the lifting means Eggplant (Claim 2).

(3) A strain-preventing support member made of channel steel for preventing distortion of the formwork body is temporarily fixed to the rod-shaped wood when the formwork body is suspended (Claim 3).

(4) After fixing the support member for the slope in the vicinity of the line to be cut with the edge of the rod-like wood corresponding to the slope, the stick-like wood along the line to be cut according to the slope (Claim 4).

(5) The rod-like wood is fixed to the main support member by fixing means, and the drainage hole support member is fixed in the vicinity of the portion where the drainage hole is to be formed in the rod-like wood, and then the drainage hole is formed. A drain hole is formed in the portion to be formed (Claim 5).

(6) After the mold body is erected on the ground, the strain prevention support member made of channel steel is removed from the rod-like wood, and the strain prevention support member is used as a connection support member. The frame body is connected to another mold body in the lateral direction (Claim 6).

(7) On the mold body standing on the ground, another mold frame body is lifted by a lifting means and connected through a support member for vertical connection.

[Invention of Claim 1]
Since the formwork was formed on the pillow material placed on the ground in the vicinity of the place where the wooden residual formwork is to be provided, the wooden residual formwork can be easily and safely used by a small number of workers in a short time. Can be formed. That is, the heavy work of lifting the heavy bar-shaped timber horizontally and fixing the bar-shaped timber to the support member standing on the ground is unnecessary, and various dangers associated with such heavy work are also eliminated.

  The rod-like wood positioning means fixes the position of the rod-like wood at the end of the predetermined number of rod-like woods placed on the pillow material, and if the work of arranging the rod-like wood on the pillow material is easy Close. By placing a predetermined number of bar-shaped timbers on the pillow material in a state in which one end thereof is aligned, fixing each bar-shaped timber to the main support member by a fixing means, and cutting and aligning the other end of the bar-shaped timber, The formwork is formed into a preferred shape.

  Since the mold body is formed on the ground as described above, the mold body is lifted by the lifting means and is erected at a predetermined position, so that the wooden remaining mold is formed extremely efficiently.

[Invention of claim 2]
Since the projecting portion of the main support member is used as a gripping margin when the mold body is lifted by the lifting means, the lifting work of the mold body can be performed safely and reliably.

[Invention of claim 3]
The support member for preventing distortion prevents distortion of the mold body when the mold body is lifted.

[Invention of claim 4]
After fixing the slope support member in the vicinity of the line to be cut with the edge of the rod-like wood corresponding to the slope, the rod-like wood is cut along the line to be cut according to the slope. Therefore, the cutting operation can be performed reliably, and the cut portion is reinforced by the slope support member even after the wooden residual formwork is erected.

[Invention of claim 5]
After fixing the drainage hole support member in the vicinity of the part where the drainage hole is to be formed in the rod-shaped wood, the drainage hole is formed in the part where the drainage hole is to be formed. The drainage hole is reinforced by the drainage hole support member even after the wooden residual formwork is erected.

[Invention of claim 6]
By using the distortion-preventing support member as the connection support member, the mold frame can be reliably coupled to another mold frame in the lateral direction, and the distortion-preventing support member is not wasted.

[Invention of Claim 7]
The mold bodies are securely connected in the vertical direction via the vertical connection support members.

FIG. 1 is a plan view showing a procedure in a method for forming a remaining wooden form according to the present invention. FIG. 2: is a top view which shows another procedure in the formation method of a wooden residual formwork same as the above. FIG. 3: is a top view which shows another procedure in the formation method of a wooden residual formwork same as the above. FIG. 4: is a top view which shows another procedure in the formation method of a wooden residual formwork same as the above. FIG. 5: is a top view which shows another procedure in the formation method of a wooden residual formwork same as the above. FIG. 6: is a top view which shows another procedure in the formation method of a wooden residual formwork same as the above. FIG. 7 is a perspective view showing an example of a hook. FIG. 8 is a perspective view showing an example of a clip metal fitting. FIG. 9 is a cross-sectional view showing a state in which the rod-like wood is fixed to the support member. FIG. 10 is a cross-sectional view showing a state in which the rod-like wood is fixed to another support member. FIG. 11: is sectional drawing which shows an example of the concrete structure using the wooden residual formwork same as the above. FIG. 12 is a side view showing a conventional method for forming a remaining wooden form.

  Hereinafter, a method for forming a remaining wooden form according to the present invention will be described with reference to the accompanying drawings.

First, the pillows 11 are arranged, for example, substantially parallel to each other on the ground near the place where the wooden residual formwork is provided. As the pillow material 11, two woods are used as an example.

The pillow 11 is provided with positioning means 15 for the rod-like wood 13. The positioning means 15 fixes the position of the end (lead) bar-shaped wood 13 ′ of the predetermined number of bar-shaped woods 13 placed on the pillow material 11. As an example, the positioning means 15 is located above the pillow material 11. The protruding plate-like body is disposed in a direction perpendicular to the pillow material 11.

A predetermined number of rod-shaped woods 13 are placed on the pillow material 11, for example, at a right angle with the pillow material 11 with one end 13 a of the rod-shaped wood 13 aligned. The rod-shaped timbers 13 are placed on the pillow material 11 so as not to be stacked in the vertical direction and so that there is no gap between them. The rod-shaped timber 13 may be logs, square wood, etc., and may be thinned wood.

The main support member 17 is placed on the rod-shaped wood 13 at a right angle to the rod-shaped wood 13. As the main support member 17, for example, a grooved steel 17a or an L-shaped steel 17b is used.

Each rod-like wood 13 is fixed to the main support member 17 by fixing means. As the fixing means, for example, a metal fitting such as a hook metal fitting 19 and a clip metal fitting (wedge metal fitting) 21 and a fixing tool such as a coach screw 23 are used.

An example of the hook 19 is shown in FIG. This hook 19 is formed by providing a rising portion 25 at one end of a base portion 24 provided with a fixing tool insertion hole 20 and forming a folded portion 27 at the upper portion of the rising portion 25. A rib 31 is provided at a bent portion 29 between the base portion 24 and the rising portion 25.

An example of the clip fitting 21 is shown in FIG. The clip fitting 21 is provided with a pointed tip 37 directed downward at one end of a plate-like body 35 provided with a fixing tool insertion hole 33.

FIG. 9 shows a state in which the rod-shaped wood 13 is fixed to the channel steel 17a. That is, the folded portion 27 of the hook 19 is locked to the rising wall 39 of the channel steel 17a, and the coach screw 23 is inserted into the fixing tool insertion hole 20 of the base portion 24 as an example, and driven into the rod-shaped wood 13, thereby forming a rod shape. The wood 13 is fixed to the channel steel 17a.

FIG. 10 shows a state in which the rod-shaped wood 13 is fixed to the L-shaped steel 17b. That is, the hook 19 is used in the same manner as the case shown in FIG. 9, but the clip 21 is used for the flat portion 42 of the L-shaped steel 17b. As an example, a coach screw 23 is inserted into the fixing tool insertion hole 33 of the clip fitting 21 and driven into the bar-shaped wood 13. The tip 37 is also driven into the rod-shaped wood 13.

As described above, after fixing each bar-like wood 13 to the main support member 17 by the fixing means, the other end 13b of the bar-like wood 13 is cut and aligned to form the mold body 41. Note that a leakage prevention material such as tarpaulin paper or roadbed paper may be attached to the mold body 41.

The mold body 41 is lifted by a lifting means (not shown) such as a lifting machine or other mechanical device and is erected at a predetermined position.

As an example, the standing mold body 41 is temporarily placed in a vertical state or an inclined state by leaning a support pipe or other appropriate support means (not shown) between the mold body 41 and the ground. Keep it fixed.

  One end of the main support member 17 protrudes outward from the rod member 13 at the edge corresponding to the one end to form a protrusion 45, and the protrusion 45 is grasped when the mold body 41 is lifted by the lifting means. It is desirable to assume a bill.

  In the example shown in FIG. 2, a distortion preventing support member 47 for temporarily preventing the distortion of the mold body 41 when the mold frame 41 is suspended is temporarily fixed to the rod-shaped wood 13. That is, as an example, the rod-shaped wood 13 is fixed to two parallel main support members 17, and a distortion prevention support member 47 is disposed obliquely between the two main support members 17, thereby supporting the distortion prevention support. The rod-like wood 13 is temporarily fixed to the member 47. The strain-preventing support member 47 is preferably channel steel. As the fixing means for temporarily fixing the strain-preventing support member 47 to the rod-like wood 13, for example, a metal fitting such as a hook metal fitting 19 and a clip metal fitting (wedge metal fitting) 21 and a fixing tool such as a coach screw 23 are used.

  In the example shown in FIG. 3, the slope support member 53 is fixed in the vicinity of the line 51 to be cut with the edge 13 c of the bar-shaped wood 13 corresponding to the slope 49, and then the slope 13 is caused to correspond to the slope 49. The rod-like wood 13 is cut along the line 51 to be cut. As an example, the slope support member 53 is L-shaped steel. As fixing means for fixing the slope support member 53 to the rod-shaped wood 13, for example, a metal fitting such as a hook metal fitting 19 and a clip metal fitting (wedge metal fitting) 21 and a fixing tool such as a coach screw 23 are used.

  In the example shown in FIG. 4, the rod-like wood 13 is fixed to the main support member 17 by the fixing means, and the drainage hole support member 57 is fixed in the vicinity of the portion where the drainage hole 55 is to be formed in the rod-like wood 13. Thereafter, a drain hole 55 is formed in a portion where the drain hole 55 is to be formed. As an example, the drain hole support member 57 is L-shaped steel. As a fixing means for fixing the drain hole support member 57 to the rod-shaped wood 13, for example, a metal fitting such as a hook metal fitting 19 and a clip metal fitting (wedge metal fitting) 21 and a fixing tool such as a coach screw 23 are used.

As shown in FIG. 5, when the mold body 41 is connected to another mold body 41 in the lateral direction, after the mold body 41 is erected on the ground, the strain-preventing support member 47 is moved to the rod shape. By removing the support member 47 for preventing distortion from the wood 13 and using the support member 47 for connection as a connecting support member, the formwork body 41 is connected to another formwork body 41 in the lateral direction. As a fixing means for fixing the distortion-preventing support member 47 as the connection support member to the rod-shaped wood 13, for example, a metal fitting such as a hook metal fitting 19 and a clip metal fitting (wedge metal fitting) 21 and a fixing tool such as a coach screw 23 are used. Use. When the mold body 41 is connected to another mold body 41 in the lateral direction, the main support member 17 and the distortion-preventing support member 47 as a connection support member are connected to a reinforcing member (not shown) such as a pipe. ). In addition, this reinforcement member is removed after installation of a wooden residual formwork.

  As shown in FIG. 6, when the formwork body 41 is connected to another formwork body 41 in the vertical direction, the other formwork body 41 is lifted by the lifting means on the formwork body 41 standing on the ground. It is lifted and connected via a support member 59 for vertical connection. As a fixing means for fixing the vertical connecting support member 59 to the rod-shaped wood 13, for example, a metal fitting such as a hook metal fitting 19 and a clip metal fitting (wedge metal fitting) 21 and a fixing tool such as a coach screw 23 are used.

  FIG. 11 shows an example of a concrete structure 61 using a wooden remaining formwork. What is indicated by reference numeral 63 is concrete.

DESCRIPTION OF SYMBOLS 1 Support member 3 Bar-shaped timber 11 Pillow material 13 Bar-shaped timber 13a One end 13b The other end 13 'Bar-shaped timber 15 Positioning means 17 Main support member 17a Groove-shaped steel 17b L-shaped steel 19 Hatch bracket 20 Fastener insertion hole 21 Clip bracket 23 Coach screw 24 Base 25 Rising part 27 Folding part 29 Bending part 31 Rib 33 Fixing tool insertion hole 35 Plate-like body 37 Pointed end 39 Rising wall 41 Mold body 42 Flat part 45 Protruding part 47 Strain prevention support member 49 Slope 51 Line 53 Slope support member 55 Drain hole 57 Drain hole support member 59 Vertical connection support member 61 Concrete structure 63 Concrete

Claims (7)

  A pillow is arranged on the ground in the vicinity of the place where the wooden residual form is provided, and the pillow is provided with a rod-like wood positioning means, and a predetermined number of rod-like pieces of wood are placed on the pillow. Place the main support member on the rod-like wood at right angles to the rod-like wood, fix each rod-like wood to the main support member by fixing means, and cut the other end of the rod-like wood Then, a formwork body is formed by aligning, and the formwork body is lifted by a lifting means and is erected at a predetermined position.   One end of the main support member protrudes outward from the bar member at the edge corresponding to the one end to form a protrusion, and the protrusion serves as a grip when the mold body is lifted by the lifting means. The method for forming a remaining wooden form according to claim 1. 3. The strain-preventing support member made of channel steel for preventing distortion of the formwork body when the formwork body is suspended is temporarily fixed to the rod-shaped timber. Forming method of wooden residual formwork.   After fixing the slope support member in the vicinity of the line to be cut with the edge of the rod-like wood corresponding to the slope, the rod-like wood is cut along the line to be cut according to the slope. The method for forming a wooden residual form according to any one of claims 1 to 3.   A portion where the drainage hole is to be formed after the rod-shaped wood is fixed to the main support member by a fixing means, and the drainage hole support member is fixed in the vicinity of the portion where the drainage hole is to be formed in the rod-shaped wood. 5. A method for forming a wooden residual form according to any one of claims 1 to 4, wherein a water draining hole is formed in the base. After the mold frame is erected on the ground, the strain prevention support member made of channel steel is removed from the rod-shaped wood, and the distortion prevention support member is used as a connection support member. The method for forming a remaining wooden formwork according to any one of claims 3 to 5, wherein the wooden formwork is connected to another formwork body in a lateral direction.   The wooden structure according to any one of claims 1 to 6, wherein another formwork body is lifted by a lifting means and connected via a support member for vertical connection on the formwork body standing on the ground. A method for forming a residual mold.

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