JP2023115032A - Force-feed pipe fixture for concrete casting - Google Patents

Abstract

To provide a force-feed pipe fixture for a concrete casting for fixing the force-feed pipe force-feeding concrete to a column or a beam made of an H-shaped steel.SOLUTION: The support member comprises: a support plate having a pair of through holes leaving a space; a U bolt having a pair of screw parts formed at an end and a U-shaped bent part for connecting the pair of screw parts, in which the pair of screw parts are inserted into the pair of through holes from one side to other side of the support plate, and pinching and fixing the force-feed pipe between the U-shaped bent part and one side surface of the support plate; and a nut threaded from the other side of the support plate to the screw part. A fixing member comprises a clamp fixture having a pinching member formed in a substantially U-shape by a pair of opposing pinching pieces and a pinching opening between the pair of pinching pieces to fix a flange part of an H-shaped steel, and a pressing force bolt threaded retractably from a through screw hole provided at the one pinching piece to the other pinching piece, and is connected to the other side of the support plate.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a concrete-pumping pumping pipe fixing fitting for fixing a pumping pipe for sending concrete to a slab or the like to an H-shaped steel used for columns and beams of a structure.

Conventionally, there is a steel structure as a structure using H-shaped steel for columns and beams. Concrete was pushed up by pressure from a car through a pumping pipe and poured into slabs and the like on the floor.
At that time, the pumping pipe is fixed to the H-shaped steel flange of the beam or column by welding the U-bolt directly or via a support plate, or drilling a through hole for bolt insertion and bolting. It is disclosed that the H-shaped steel used as a structural material was processed, such as fixing with a nut. (Patent document 1)

However, welding fixing members to the H-section steel, which is a structural material, or drilling through holes for bolt insertion causes deterioration in the strength of the H-section steel itself, which causes structural problems. At the same time, in terms of workability, the fixed position of the pumping pipe is determined on-site according to the location of the concrete mixer truck and concrete pump truck that transports concrete and the situation of the structure. Since the work is on-site work, there have been problems such as very complicated and poor workability.

Utility Model Registration No. 3118572 Japanese Utility Model Laid-Open No. 60-87964

The present invention has been made in view of the above-mentioned conventional problems, and its object is to perform processing such as welding and drilling of through holes for bolt insertion in the flange portion when using H-shaped steel as beams and columns of structures. It is possible to firmly fix the pressure feed pipe to the flange portion of the H-shaped steel without performing any hardening, and to simplify the detachment work.

As the means, claim 1 of the present invention is a fixture for fixing a pumping pipe for pumping concrete to a column or beam using H-shaped steel, which is a fixing member fixed to the flange of the H-shaped steel. and a support member that is joined to the fixed member and supports the pumping pipe, the support member comprising a support plate having a pair of through holes spaced apart from each other, and a pair of screws formed at the ends of the support plate. and a U-shaped bent portion connecting the pair of screw portions, the pair of screw portions are inserted through the pair of through holes from one side of the support plate toward the other side, and the U-shaped bent portion and the support a U-bolt for sandwiching and fixing the pumping pipe between the one side surface of the plate and a nut screwed to the threaded portion from the other side of the support plate;
The fixing member has a substantially U-shape formed by a pair of opposing clamping pieces and a clamping opening between the pair of clamping pieces. and a clamp fitting having a pressing bolt screwed forward and backward toward the other clamping piece through a through screw hole provided in the clamping piece, and joined to the other side of the support plate. and

Claim 2 of the present invention is characterized in that, in Claim 1, the fixing member has a plurality of the clamp fittings.

According to claim 3 of the present invention, in claim 1 or 2, the fixing member has a substantially L-shaped support seat and a clamp fitting fixed along the inner surface of the support seat, and the support seat is joined to the other side of the support plate via the

According to claim 4 of the present invention, in any one of claims 1 to 3, the support member has an arm portion extending from the support plate toward the other side, and the support plate and the arm It is characterized in that the part and the part form a substantially T shape.

According to claim 5 of the present invention, in claim 4, the arm portion has an elongated hole extending along the longitudinal direction, and the fixing member is secured to the elongated hole by tightening and loosening a bolt and a nut in the elongated hole. and is joined to the arm portion so as to be movable along.

According to claim 6 of the present invention, in claim 4 or 5, the arm portion is joined to at least two of the fixing members, and the fixing members are arranged on the one side and the other side of the H-section steel. , are fixed to the flange portion of the H-section steel from the one side and the other side, respectively.

According to claim 7 of the present invention, in any one of claims 1 to 6, the fixing member is configured such that the pressing bolt can move forward and backward in a direction substantially parallel to the longitudinal direction of the pressure-feeding pipe, and the supporting member is in a state in which the pressing bolt can move forward and backward. It is characterized in that the longitudinal direction of the H-shaped steel and the longitudinal direction of the pressure feed pipe can be substantially perpendicular to each other and can be fixed by being joined to each other.
It should be noted that "substantially orthogonal" includes the range of 90 degrees ± several degrees at which the longitudinal direction of the H-shaped steel intersects with the longitudinal direction of the pumping pipe, taking into consideration tolerances and manufacturing errors of each member. shall be

Claim 8 of the present invention is the configuration according to any one of Claims 1 to 6, wherein the fixing member is configured such that the pressing bolt can move forward and backward in a direction substantially perpendicular to the longitudinal direction of the pressure-feeding pipe, and the supporting member is in a state where the pressing bolt is movable. It is characterized in that the longitudinal direction of the H-shaped steel and the longitudinal direction of the pressure-feeding pipe can be substantially parallel and fixed by being joined to each other.
In addition, "substantially parallel" includes a range of angle difference of several degrees between the longitudinal direction of the H-shaped steel and the longitudinal direction of the pressure pipe, taking into consideration the tolerances and manufacturing errors of each member. .

According to claim 1 of the present invention, the fixing member is fixed to the flange portion of the H-section steel, and the supporting member is joined to the fixing member and supports the pumping pipe. and a gripping opening between the gripping pieces to form a substantially U-shaped clamping piece, and a pressing bolt screwed forward and backward from a through screw hole provided in one clamping piece of the clamping member toward the other clamping piece. By tightening the pressing bolt toward the flange surface in a state in which the clamping opening is fitted to the flange portion of the H-shaped steel, the clamp metal can be firmly fixed.
The support member has a support plate having a pair of spaced through holes, a pair of threaded portions formed at the ends, and a U-shaped bent portion connecting the pair of threaded portions. A threaded portion is inserted through the pair of through-holes from one side of the support plate to the other side, and the pressure feed pipe is sandwiched and fixed between the U-shaped bent portion and the surface of the support plate on the one side. By providing a bolt and a nut to be screwed onto the threaded portion from the other side of the support plate, it is possible to easily tighten the nut by engaging the U-bolt while the pumping pipe is in contact with the support plate. Moreover, it can be fixed securely. In other words, the pumping pipe can be firmly fixed to the flange portion of the H-section steel.

According to claim 2 of the present invention, since the fixing member has a plurality of clamp fittings, it is possible to increase the fixing force for attaching to the H-shaped steel.

According to claim 3 of the present invention, the fixing member has the substantially L-shaped support seat and the clamp metal fitting fixed along the inner surface of the support seat, and the other side of the support plate via the support seat. are joined to provide the necessary anchoring force to withstand the pressure exerted on the pumped concrete. Moreover, when a plurality of metal fittings are provided, the plurality of metal fittings can be fixed to the support seat and integrated, which facilitates handling.

According to claim 4 of the present invention, the support member has an arm portion extending from the support plate toward the other side, and the support plate and the arm portion form a T shape, so that the fixed member By connecting the arm portion at an arbitrary position, the pumping pipe can be fixed correspondingly even at a position appropriately separated from the H-section steel.

According to claim 5 of the present invention, the arm portion has an elongated hole extending along the longitudinal direction, and the fixing member moves along the front elongated hole by tightening and loosening the bolt and nut in the elongated hole. Since the support plate can move back and forth from the H-section steel when the support member is fixed to the H-section steel, the pressure feed pipe can be arbitrarily separated from the H-section steel. Even if the distance is not constant, the support member can be moved back and forth to ensure the fixing.

According to claim 6 of the present invention, the arm portion is joined to at least two of the fixing members, and the fixing members are arranged on the one side and the other side of the H-section steel, By being fixed to the flange portion of the H-section steel from the other side, it is possible to prevent disengagement from the fixture due to vibration of the pumping pipe, thereby providing a highly reliable fixture.

According to claim 7 of the present invention, the fixing member is joined to the support member in a state in which the pressing bolt can move back and forth in a direction substantially parallel to the longitudinal direction of the pressure-feeding pipe, thereby forming the H-shaped member. Since the longitudinal direction of the steel and the longitudinal direction of the pressure-feeding pipe can be fixed substantially perpendicularly, when the fixing member is fixed to the H-shaped steel of the beam, the pressure-feeding pipe in the vertical direction can be reliably fixed. can.

According to claim 8 of the present invention, the fixing member is joined to the support member in a state in which the pressing bolt can move back and forth in a direction substantially perpendicular to the longitudinal direction of the pressure-feeding pipe, thereby forming the H-shaped member. Since the longitudinal direction of the steel and the longitudinal direction of the pressure-feeding pipe can be fixed in parallel, when the fixing member is fixed to the H-shaped steel of the column, the pressure-feeding pipe in the vertical direction can be reliably fixed. can.

1 is a perspective view 1 showing Embodiment 1 of the present invention. FIG. FIG. 2 is a perspective view 2 showing Embodiment 1 of the present invention. It is a side view showing Embodiment 1 of the present invention. FIG. 3 is a perspective view 3 showing Embodiment 1 of the present invention. It is a perspective view showing Embodiment 2 of the present invention. It is a perspective view showing Embodiment 3 of the present invention. FIG. 2 is a usage state diagram of Embodiment 1 of the present invention; FIG. 4 is a usage state diagram of Embodiment 2 of the present invention; FIG. 10 is a usage state diagram of Embodiment 3 of the present invention; It is a perspective view 1 showing Embodiment 4 of the present invention. It is a side view which shows Embodiment 4 of this invention. It is a perspective view 2 showing Embodiment 4 of the present invention. It is explanatory drawing which shows the assembly of Embodiment 4 of this invention. It is a perspective view 3 showing Embodiment 4 of the present invention. It is a perspective view showing Embodiment 5 of the present invention. It is a perspective view showing Embodiment 6 of the present invention. FIG. 10 is a usage state diagram of Embodiment 4 of the present invention; FIG. 10 is a usage state diagram of Embodiment 5 of the present invention. FIG. 10 is a usage state diagram of Embodiment 6 of the present invention; FIG. 12 is a perspective view showing a form in which the detachment prevention member is excluded according to Embodiment 4 of the present invention.

Embodiments of the present invention will be described in detail with reference to the drawings.
In this specification, for convenience of explanation, the direction in which the pumping pipe is fixed to the surface of the support plate is called "one side", and the direction in which the H-section steel is fixed is called "the other side". Also, the longitudinal direction of the pressure feed pipe is defined as the up-down direction. However, this vertical direction is a direction defined for explaining this embodiment, and does not limit the direction in which the pressure-feeding pipe and the concrete placing pressure-feeding pipe fixture are attached.
A concrete placing pressure-feeding pipe fixture according to an embodiment of the present invention is a fixture for fixing a pressure-feeding pipe for pressure-feeding concrete to a beam using H-section steel, and is fixed to a flange portion of the H-section steel. and a support member 10 that is joined to the fixing member 20 and supports the pumping tube.
The H-section steel A is H-shaped when viewed in the longitudinal direction, and has a web portion D and flange portions B, B formed at both ends of the web portion D. As shown in FIG. The pumping tube C is cylindrical.
First, each configuration of Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3. FIG.
As shown in FIGS. 1 to 3, reference numeral 10 denotes a support member. A support plate 11 made of thin steel plate is provided with a pair of through holes 12, 12 which are spaced apart from each other in the left and right direction. A pair of threaded portions 14, 14 provided at both ends of a U-bolt 13 are inserted through the through holes 12, 12 from one side of the support plate 11 toward the other side, and nuts 15, 15 are inserted from the other side of the support plate 11. are screwed to each other. Since it is desirable to tighten the nuts 15 and 15 doubly to prevent loosening, two of each are provided.
The upper and lower edges of the support plate 11 are integrally bent to the other side by press working to increase the rigidity in the longitudinal direction, and to form contact portions 16, 16 with which the outer circumference of the pressure-feeding pipe abuts, along the outer diameter of the pressure-feeding pipe. It is notched like an arc. The pumping pipe is sandwiched between the U-shaped bent portion 17 connecting the pair of screw portions 14, 14 of the U-bolt 13 and the surface of the notch portion provided on the other side of the support plate 11, and is stably held. can be done.
A fixing member 20 consists of two clamp fittings 21, 21 arranged in parallel.
The clamp metal fittings 21, 21 are composed of a pair of clamping pieces 22, 23 that face each other vertically and a clamping opening 24 between the clamping pieces 22, 23, thereby forming a clamping body 25 that is substantially U-shaped when viewed from the side. A pressing bolt 27 is screwed into a through screw hole 26 provided in one holding piece 22 so as to be able to advance and retreat vertically toward the other holding piece 23 .
The clamping body 25 fixes the flange portion of the H-shaped steel at the clamping opening 24 by tightening the pressing bolt 27 toward the other clamping piece 23 . The clamping body 25 is formed integrally by cold or hot forging to obtain a form that provides stable strength.

The fixing member 20 and the support member 10 are joined together by welding the clamping body 25 to the other side of the supporting plate 11 of the supporting member 10, which is opposite to the one side where the pumping pipe abuts. By changing the direction, it can be used when H-beam is used as a column and a pumping pipe is fixed along the column, or when H-beam is used as a beam and a pumping pipe is fixed to the beam. It can be done, so it will be explained below.
(Embodiment 1)
When the H-section steel is used for the beam, as shown in FIG. 4, the pumping pipe is substantially orthogonal to the longitudinal direction of the flange portion of the H-section steel to which the fixing member 20 is attached. A clamping opening 24 of a clamping body 25 is opened on the other side of the support plate 11 toward the other side, and a pressing bolt 27 is welded so as to be able to advance and retreat in a direction substantially parallel to the longitudinal direction of the pressure feed pipe. The two clamping bodies 25, 25 are joined side by side.
(Embodiment 2)
A description will be given of the case where H-section steel is used in a column and the pumping pipe is fixed substantially parallel along the length of the flange edge of the column. As shown in FIG. 5, the web portion D of the H-section steel A faces the support plate 11 in a substantially parallel manner, the flange portions B protrude in a direction substantially perpendicular to the support plate 11, and the H-shape steel to which the fixing member 20 is attached. The conveying pipe is substantially parallel to the longitudinal direction of the steel flange. On the other side of the support plate 11, a clamping opening 24 of a clamping body 25 is opened toward the other side, and welding is performed so that the pressing bolt 27 can advance and retreat in a direction substantially perpendicular to the longitudinal direction of the pressure feed pipe. , the two clamping bodies 25, 25 are vertically arranged in parallel and fixed.
(Embodiment 3)
A case will be described in which H-section steel is used in a column and the pumping pipe is fixed substantially parallel along the longitudinal direction of the wide face of the flange of the column. As shown in FIG. 6, the web portion D of the H-section steel A is substantially orthogonal to the support plate 11, and the surfaces of the flange portions B, B are substantially parallel to the support plate 11. The pressure feed pipe is substantially parallel to the longitudinal direction of the flange portion. On the other side of the support plate 12, the outer surface side of one clamping piece 23 of the clamping body 25 is welded so that the pressing bolt 27 can move back and forth in the direction substantially perpendicular to the longitudinal direction of the pumping pipe. The holding bodies 25, 25 of the body are vertically arranged in parallel and fixed.

The pressure applied to the concrete sent by the pressure pipe varies depending on the amount of concrete sent per hour, the distance to the place of placement, and the floor height. Since it becomes large, a larger fixing force is required, and it is possible to deal with these conditions by changing the number of clamp metal fittings 21 of the fixing member 20 . In other words, here, two clamp fittings are explained in parallel, but if the pressure is small, one clamp fitting can be used. is. (illustration omitted)

A usage state of the first embodiment will be described with reference to FIG.
As shown in FIG. 7, first, the clamp metal fittings 21, 21 of the fixing member 20 are fitted to the flange portion B of the H-section steel A of the beam with the clamping opening 23 thereof fitted, and the pressing bolt 27 is pushed toward the flange surface. By tightening, the clamping bodies 25, 25 fix one side of one flange portion B of the H-shaped steel A, respectively.
Next, the U-bolt 13 is engaged with the pressure-feeding pipe C in contact with the contact portions 16, 16 of the support plate 11, and the nuts 15, 15 are tightened from the back side to fix.
By using it in this way, the longitudinal direction of the H-section steel and the longitudinal direction of the pumping pipe can be substantially perpendicular to each other and can be fixed.
After placing concrete, when removing the pumping pipe, the fixture of the present invention can also be removed from the H-shaped steel and diverted.

In addition, in the second and third embodiments, the fixing member 20 is attached to the flange portion B of the H-section steel A of the column in the same procedure as described above, and the pressure feed pipe C is fixed with the support member, thereby achieving the respective purposes. The description will be omitted because the state of use will depend on the state of use (see FIGS. 8 and 9).

(Embodiment 4)
Each configuration of Embodiment 4 of the present invention will be described with reference to FIGS. 10 to 13. FIG.
As shown in FIGS. 10 to 13, reference numeral 100 denotes a support member, and a pair of through holes 120, 120 are provided laterally in a support plate 110 made of thin steel plate.
Reference numeral 115 denotes an arm portion, and a long hole 117 is provided along the longitudinal direction at approximately the center of a support surface 116 having a substantially U-shaped cross section with both ends bent downward in order to increase rigidity in the longitudinal direction. The arm portion 115 has its tip fixed to the other side of the support surface 116 by welding so as to extend from the support plate 110 toward the other side. to form.
Since the form of the support plate and the U-bolts and nuts constituting other configurations are the same as those of the first embodiment, the description thereof is omitted.
Also, a plurality of through holes (not shown) may be provided in place of the elongated hole 117, and the effect of being able to adjust the distance in steps at appropriate intervals can be expected.
A fixing member 200 is joined to the arm portion 115 so as to be movable along the long hole 117 by tightening and loosening a bolt 300 and a nut 310 in the long hole 117 . Since the form of the clamp metal fittings 210 of the fixing member 200 is the same as that of the first embodiment, the two clamp metal fittings 210 are fixed to the support seat 280 by welding.
The support seat 280 has an angle shape wider than the width of the arm portion 115, and is composed of two sides of an X seat surface 281 extending in the vertical direction and a Y seat surface 282 extending in the horizontal direction. The outer surface of the clamping piece 230 is arranged and fixed on the inner surface of the clamping member 281 so that the outer surface of the clamping opening 240 of the clamp metal fitting 210 is aligned with the inner surface of the Y seat surface 282, and the clamping opening 24 of the clamping body 25 faces the other side. is open.
Here, welding is used for joining, but it is also possible to form a screw hole in the clamping body, provide a through hole matching the screw hole in the support seat, and screw a bolt into the screw hole for fixing. (illustration omitted)
Denoted at 400 is a fixing member (hereinafter referred to as a detachment prevention member) for preventing the concrete placing pumping pipe fixture from coming off from the flange portion B. By tightening and loosening the bolt 300 and the nut 310 , it is joined to the arm section 115 so as to be movable along the elongated hole 117 . The detachment prevention member 400 has the same configuration as the fixing member 200, but has one clamp fitting 210. As shown in FIG.
Alternatively, the arm portion 115 can be fixed to the fixing member 200 by the bolt 300 and the nut 310 without providing the detachment prevention member 400. In that case, two bolts 300 and nuts 310 are used for stable fixing. can do. (See Figure 20)

The support member 100 and the fixed member 200 are joined together by fixing the arm portion 115 of the support member 100 to the through hole 283 of the support seat 280 of the fixed member 200 through the elongated hole 117 with a bolt 300 and a nut 310 .
Similarly, the support member 100 and the detachment prevention member 400 are joined together by connecting the arm portion 115 of the support member 100 and the through hole 420 of the support seat 410 of the detachment prevention member 400 through the elongated hole 117 with the bolt 300 and the nut. Fix at 310 .
By tightening and loosening these bolts 300 and nuts 310, the support member 100 is joined to the fixing member 200 and the detachment prevention member 400 so as to be movable along the long hole 117 of the arm portion 115. Depending on the direction in which the support plate 110 and the arm portion 115 are fixed, and the joint positions of the support member 100 and the fixing member 200, the H-shaped steel is used for the column and the pressure feed pipe is fixed along the column, or the H Since it is possible to deal with the case where a shaped steel is used for a beam and a pumping pipe is fixed to the beam, it will be described below.
In addition, the detachment prevention member 400 is fixed to the elongated hole 117 with the holding opening 240 of the holding member 250 opposed to the fixing member 200 so as to always face the fixing member 200 . Since the position where the support member 100 is fixed is the same as that of the fixing member 200, the explanation is omitted.
(Embodiment 4)
When H-section steel is used for the beam, as shown in FIG. 14, the pumping pipe is substantially orthogonal to the longitudinal direction of the flange portion of the H-section steel to which the fixing member 200 is attached. The support plate 110 and the arm portion 115 are fixed so that the support surface 116 is substantially orthogonal to the longitudinal direction of the pumping pipe, and the arm portion 115 of the support member 100 is fixed to the X direction of the support seat 280 of the fixing member 200 . It is fixed with the bolt 300 and the nut 310 on the seat surface 281 side. The fixing member 200 is arranged on one side of the H-section steel, and the detachment prevention member 400 is arranged on the other side of the H-section steel, and can be fixed to the flange portion of the H-section steel from one side and the other side, respectively.
(Embodiment 5)
A description will be given of the case where H-section steel is used in a column and the pumping pipe is fixed substantially parallel along the length of the flange edge of the column. As shown in FIG. 15, the pumping pipe is substantially parallel to the longitudinal direction of the flange portion of the H-section steel to which the fixing member 200 is attached. 116 is fixed so as to be substantially parallel to the longitudinal direction of the pumping pipe, and the arm portion 115 of the support member 100 is fixed to the X seat surface 281 side of the support seat 280 of the fixing member 200 with the bolt 300 and nut 310 .
(Embodiment 6)
A case will be described in which H-section steel is used in a column and the pumping pipe is fixed substantially parallel along the longitudinal direction of the wide face of the flange of the column. As shown in FIG. 16, the pressure feed pipe is substantially parallel to the longitudinal direction of the flange portion of the H-shaped steel to which the fixing member 200 is attached. The support plate 110 and the arm portion 115 are fixed so that the support surface 116 is substantially parallel to the longitudinal direction of the pumping pipe, and the arm portion 115 of the support member 100 is fixed to the Y direction of the support seat 280 of the fixing member 200 . It is fixed with the bolt 300 and the nut 310 on the seat surface 282 side.

A usage state of the fourth embodiment will be described with reference to FIG. 17 .
As shown in FIG. 17, the pressing bolts 270 of the fixing member 200 and the detachment preventing member 400 are movable forward and backward in a direction substantially parallel to the longitudinal direction of the pressure-feeding pipe C. As shown in FIG. First, the clamp metal fittings 210, 210 of the fixing member 200 are fixed to the flange portion B of the H-shaped steel A of the beam by tightening the pressing bolt 270 toward the flange surface in a state where the clamping opening 230 is fitted on the flange portion B. .
Next, the bolts 300 and nuts 310 that connect the fixing member 200 and the support member 100 are loosened, and the support plate 115 is moved along the elongated hole 117 of the arm portion 115 toward the pressure-feeding pipe C. The U-bolt 130 is engaged in a state in which it abuts on, and the nuts 150, 150 are tightened from the back side to fix it.
After placing concrete, when removing the pumping pipe, the fixture of the present invention can also be removed from the H-shaped steel and diverted.

In addition, in the fifth and sixth embodiments, the fixing member 200 is attached to the flange portion B of the H-section steel A of the column in the same procedure as described above, and the pressure feed pipe C is fixed with the support member 100. 18 and 19).

10, 100 Support members 11, 110 Support plate 115 Arm portion 116 Support surface 117 Long holes 12, 120 Through holes 13, 130 U bolts 14, 140 Screw portions 15, 150 Nuts 16, 160 Contact portion 17 U-shaped bent portion 20 , 200 fixing members 21, 210 clamp metal fittings 22, 220 clamping pieces 23, 230 clamping pieces 24, 240 clamping openings 25, 250 clamping bodies 27, 270 pressure bolt 280 support seat 281 X seat surface 282 Y seat surface 283 through hole 300 bolt 310 nut 400 fixing member (disengagement prevention member)
410 Support seat 420 Through hole A H-shaped steel B Flange portion C Pumping pipe D Web portion

Claims (8)

A fixture for fixing a pumping pipe for pumping concrete to a column or beam using H-shaped steel, comprising a fixing member fixed to the flange of the H-shaped steel, and a pumping pipe joined to the fixing member to support the pumping pipe. and a support member for
The support member has a support plate having a pair of spaced through holes, a pair of threaded portions formed at the ends, and a U-shaped bent portion connecting the pair of threaded portions. A threaded portion is inserted through the pair of through-holes from one side of the support plate to the other side, and the pressure feed pipe is sandwiched and fixed between the U-shaped bent portion and the surface of the support plate on the one side. a bolt and a nut screwed onto the threaded portion from the other side of the support plate,
The fixing member has a substantially U-shape formed by a pair of opposing clamping pieces and a clamping opening between the pair of clamping pieces. and a clamp fitting having a pressing bolt screwed forward and backward toward the other clamping piece through a through screw hole provided in the clamping piece, and joined to the other side of the support plate. A pressure feed pipe fixing bracket for concrete placing. 2. A pressure-feed pipe fixture for concrete placing according to claim 1, wherein said fixing member has a plurality of said clamp fixtures. The fixing member has a substantially L-shaped support seat and a clamp fitting fixed along the inner surface of the support seat, and is joined to the other side of the support plate via the support seat. 3. The pressure-feed pipe fixture for concrete placing according to claim 1 or 2, characterized in that: 4. The support member according to any one of claims 1 to 3, wherein the support member has an arm portion extending from the support plate toward the other side, and the support plate and the arm portion form a substantially T-shape. 1. The pressure-feeding pipe fixture for placing concrete according to item 1 above. The arm portion has an elongated hole extending along the longitudinal direction,
5. The pump for placing concrete according to claim 4, wherein the fixing member is joined to the arm portion so as to be movable along the elongated hole by tightening and loosening bolts and nuts in the elongated hole. Pipe fixing bracket. The arm portion is joined to at least two of the fixing members,
5. The fixing member is arranged on the one side and the other side of the H-section steel, and fixed to the flange portion of the H-section steel from the one side and the other side, respectively. 5. The pressure-feeding pipe fixture for placing concrete according to 5. The fixing member is joined to the supporting member in a state in which the pressing bolt can move back and forth in a direction substantially parallel to the longitudinal direction of the pressure-feeding pipe, whereby the longitudinal direction of the H-section steel and the longitudinal direction of the pressure-feeding pipe are fixed. 7. The fixture for concrete placing pressure feed pipe according to any one of claims 1 to 6, characterized in that it can be fixed in such a manner that the direction thereof is substantially perpendicular to the direction of the pressure feed pipe. The fixing member is joined to the support member in a state in which the pressing bolt can move back and forth in a direction substantially perpendicular to the longitudinal direction of the pressure-feeding pipe, whereby the longitudinal direction of the H-section steel and the longitudinal direction of the pressure-feeding pipe are fixed. 7. The concrete placing pressure feed pipe fixture according to any one of claims 1 to 6, characterized in that it can be fixed in a substantially parallel direction.

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