JP3024076U - Concrete with steel rebar - Google Patents

Abstract

(57) [Abstract] [Problem] The problem that a building or bridge pier made of reinforced concrete collapses due to an earthquake, or a reinforced concrete column or a reinforced concrete column buried underground by the earth drill method bends due to the looseness of the ground due to the earthquake. . SOLUTION: The building of a concrete column containing steel reinforced steel using the H steel of the present invention or a bridge pier of steel reinforced concrete is H
Due to the elasticity of steel, it is possible to prevent collapse due to an earthquake, and the concrete pile with steel-framed steel reinforcements using H-steel and the cylinder of steel-reinforced concrete using H-steel by the earth drill method are caused by the looseness of the earthquake caused by the earthquake due to the elasticity of H-steel. It is possible to prevent bending.

Description

[Detailed description of the device]

[Field of Industrial Application] [0001] The present invention relates to a risk prevention measure against collapse of a reinforced concrete building or a reinforced concrete bridge pier due to an earthquake or loosening of the ground due to an earthquake.

[Prior Art] Using a conventional method, a reinforced concrete pile is driven up to a suitable number of rocks with a dedicated machine around the lower part of the pillar of a building or a bridge pier to form a foundation, and reinforcing bars (deformed steel bars) are formed into a grid pattern. Assemble (tie the reinforcing bar with a steel bundle wire) and the outer circumference of the assembled reinforcing bar by using a panel, bolts and nuts to make an appropriate width with the reinforcing bar and make a frame (from the raw concrete car to the concrete pump car at the site) The raw concrete is poured into the fresh concrete receiving port of the pump car, and the raw concrete that is sent to the pipe outlet end of the pump car (by operation) is driven by a worker using a vibrator etc. so that there is no gap in the finish Concrete reinforced concrete bridge or building The concrete in which the building was built only had reinforcing bars for reinforcement, and the reinforced concrete pile or earth drill method was used. The reinforced concrete cylinders that are buried more underground are also only filled with reinforcing bars that are embedded in the concrete.

[Problems to be Solved by the Invention] As described in the prior art, it prevents the building or pier made of reinforced concrete from collapsing due to an earthquake and the reinforced concrete pile from bending due to looseness due to an earthquake. It is intended to provide concrete products.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has a structure in which a column of a building made of reinforced concrete, a bridge pier, a concrete pile, or a concrete column to be buried underground by an earth drill method Steel struts will be incorporated and made of concrete with steel reinforcement.

[Embodiment of the Invention] Since the present invention has taken the above-mentioned means, a building or a pier made of concrete with steel rebar is prevented from collapsing due to an earthquake due to the elasticity of H steel, and a concrete pile with steel rebar and steel rebar The bending of the filled concrete cylinder due to the earthquake can be prevented by the elasticity of the H steel.

Embodiments Embodiments will be described with reference to the drawings. In Fig. 1, a concrete pile 10 is driven by a dedicated pile driving machine until the concrete pile 10 reaches the bedrock, and it is dug around the pile with a yunbo to the place where the frame stone under the base is laid and the appropriate position above the pile is scraped off The H steel in the pile, which leaves about 70 cm of rebar, is cut off by a cutting burner of an oxygen welding machine at a position 8 cm above the base. (In this case, the reinforced concrete pile containing H steel of the present invention was used, but the conventional reinforced concrete pile may be used.) Then, crushed stones are spread and fixed with a rammer, and a cruciform reinforced concrete foundation is provided on the top. Weld both ends of H steel (A) of appropriate length to become the H steel receiver 2 with iron plate C and weld iron plate C to both ends of H steel (I, U) of the same length. Welding H steel (I, U) in a cross shape on both sides of the center of H steel (A), and reinforcing steel plate B vertically inward at the center of iron plate C of H steel (I, U). Welding is performed for welding, and welds are also provided between the H steel receivers 2 and 2 so that the H steel receiver 2A is located at the upper position of the pile (the steel plate C is welded to both ends of the receiver 2A. ) 4 pieces are performed, and for vertically reinforcing the iron plate B between the inside of the iron plate C and the receiving body 2. Weld at 8 points, and fix the lower part of the receiver and the upper part of H steel 11 in the concrete pile by welding (see Fig. 3).

In FIG. 2, an H steel support column 3 is installed above the center of the H steel support 2 with respect to the road as shown in FIG. Weld the abutting points on the upper part of the H steel receiver 2. Then, as shown in FIGS. 3 and 4, the four H steel braces 4 (H steel at both ends of the H steel braces 4 prepared in advance at appropriate positions below the H steel column 3 and above the H steel receiver 2 are provided. Weld both side iron plates A to the side of the column 3) Weld and perform both side welding to reinforce the iron plate B vertically and the iron plate D at the center between the columns 3 of the iron plates A and H steel, The upper part of the H-steel column 3 and the lower center part of the H-steel beam 5 are also welded and fixed in a T-shape (using a tow truck) to the upper part of the pier, and both ends of the H-steel brace 6 prepared in advance. Are welded to the upper portions of the H steel columns 3 and the lower portions of the H steel beams 5 near the center, one by one on the left and right. Then, both ends of the H steel beam 5 are welded with iron plates C 1 for reinforcement.

In FIG. 5, the area around the H steel (the pillar 3, the receiving member 2, the braces 4, and the 6 beams 5) is assembled with the reinforcing bar 7 (deformed bar steel), and the crossing point of the reinforcing bar 7 is bound with the iron bundle wire (the reinforcing bar of the concrete pile). And the steel bars around the H steel receiver 2 are welded and fixed.) Then, an outer frame is provided by a panel on the outer circumference, and the panel is tightened and fixed with bolts and nuts. Pouring ready-mixed concrete into the mouth and finishing the concrete by sending it to the tip of the pipe exit of the pump car (by operation) using a vibrator to prevent bubbles from entering the ready-mixed concrete. .

FIG. 6 is a completed view in which the panel is removed and the base portion is backfilled.

FIG. 7 and FIG. 8 show the foundation of the building and the lower part of the pillar, and the construction will proceed in the same way as the method shown in FIGS. 1, 3 and 4.

9 and 10, the H steel girder 30 and the H steel beam 29 on each floor of the H steel are fastened by bolts, nuts and washers and fixed to the ceiling or wall of the building. Brace 22 (of H steel or channel or angle) is also welded or clamped and fixed by bolts, nuts and washers.

In FIG. 11, the outer periphery of the above-mentioned H steel frame is assembled in a lattice shape with reinforcing bars 17 (deformed steel bars), the intersections are bound with iron bundle wires, and the outer periphery is provided with a panel to form a bolt. A panel worker tightens and fixes the panel with nuts, and then pouring fresh concrete from the fresh concrete car to the fresh concrete receiving port of the concrete pump car at the site, and the concrete sent out to the end of the pipe exit of the pump car (by operation) is Use a vibrator to perform work so that air bubbles do not enter into the ready-mixed concrete, and finish. (Reinforcing bars are assembled on the first floor in order from the foundation to proceed the concrete pouring work.)

In FIG. 12, the building 9 is completed after the concrete finishing work of the building in which the panel has been removed and the foundation part has been backfilled.

The H steel 18 shown in FIG. 13 is a pillar material at the center of the concrete pile with steel reinforcement. As shown in FIG. 14, the H steel 18 is welded into a cylindrical shape around the H steel 18 with a reinforcing bar 31, and is vertically divided into halves for manufacturing the concrete pile shown in FIG. 15 into the iron manufacturing frame 23 (cylindrical shape). Insert the skeleton that is a combination of H steel and rebar shown in Fig. 2, and put both production frames 23 together, and insert bolts 24 through the holes for bolts at appropriate intervals, tighten them with nuts 25, and fix the concrete. It is sent by an operator into the steel pipe frame 23 and finished, and the concrete pile 10 with the steel frame rebar shown in FIG. 16 is completed.

Referring to FIG. 17 and FIG. 18, the method of finishing the steel-frame-reinforced concrete stanchions 28 of the present invention by the earth drill method will be described in order. An iron pipe having a length of about 3 m and a diameter of about 35 cm is set up vertically. Insert a drill-like rotary shaft into the ground and rotate the ground by transmitting the rotation of the engine of the dedicated drill car to the engine and rotate it to the tip of the rotary shaft. The pipe 26 is lifted up, the soil is repeatedly carried out to the outside of the pipe 14, and the pipe 26 and the rotating shaft are spliced together (tightening the connection part with bolts and nuts) while deeply excavating underground. When is reached, the rotary shaft with the blade tip of the rotary shaft is pulled up from the pipe 26 and inserted into the pipe 26 (using a wrecker) and the cylindrical reinforcing bar of about 3 m in length is inserted. Then, insert H steel of about 3 m in width (using a tow truck) into the center of the rebar 20, add and weld until reaching the bedrock, and after installation is completed, from the ready-mixed concrete truck to the ready-mixed concrete truck concrete concrete truck. The raw concrete is poured into the pipe 26, and the raw concrete that has been delivered to the pipe outlet tip of the pump car (by operation) is poured into the pipe 26 by the site worker so that air bubbles do not enter the raw concrete using the vibrator. Then, the pipe 26 is pulled up (using a tow truck) and concrete finish is carried out to finish the concrete cylinder 28 with steel-framed reinforcing bars shown in FIG.

[Effects of the Invention] Since the present invention is configured as described above, it has the following effects.

In the case of the building of the steel reinforced concrete columns using the H steel and the pier of the steel reinforced concrete columns of claim 1, the advantage of preventing the collapse due to an earthquake due to the elasticity of the H steel embedded in the concrete columns of the building and the piers There is.

When the concrete pile containing steel-framed reinforced steel of claim 2 is driven into underground rock and used, and when the column of steel-reinforced concrete containing H-steel using earth drill method is buried up to underground rock In, the elasticity of H steel embedded in concrete piles and concrete columns has the advantage of preventing bending due to loosening of the ground due to an earthquake.

[Brief description of drawings]

FIG. 1 is a plan view of a pier base 1 and receivers 2 and 2a.

FIG. 2 is a sectional front view showing a working state of H steel piers.

FIG. 3 is a front view in which a pier foundation portion is easily seen.

4 is a cross-sectional plan view of FIG.

FIG. 5 is a front view in which the periphery of the steel frame in FIG. 2 is assembled with a reinforcing bar 7.

FIG. 6 is a front view of the completed pier.

FIG. 7 is a plan view of a building base 12 and receiving bodies 13 and 13A.

FIG. 8 is a front view in which the basic portion of the pillar of the building is easily seen.

FIG. 9 is a front view showing an implementation state of building construction.

FIG. 10 is a cross-sectional perspective view of the second floor portion of the building construction.

FIG. 11 is a front view showing an implementation state of building construction.

FIG. 12 is a front view showing the completion of the building.

FIG. 13 is a side view of H steel used in the present invention.

FIG. 14 is a side view of the H steel 18 and the reinforcing bar 31 used in the present invention.

FIG. 15 is a plan view of the pile manufacturing process.

FIG. 16 is a side view of the completed pile with steel rebar.

FIG. 17 is a cross-sectional side view showing a state where the earth drilling method is carried out.

FIG. 18 is a plan view of FIG.

FIG. 19 is a view for making it easier to see the completion of the steel cylinder-reinforced concrete cylinder 28.

[Explanation of symbols]

 1 Reinforced concrete base 2 H steel receiver 2 AH steel receiver 3 H steel support 4 H steel braces 5 H steel beams 6 H steel braces 7 Reinforcing bars (deformed bars) 8 Steel reinforced concrete bridge piers 9 Steel frames Reinforced concrete building 10 Reinforced concrete pile 11 H steel 12 Reinforced concrete base 13 H steel receiver 13 AH steel receiver 14 H steel column 15 H steel braces 16 H steel braces 17 Rebar (deformed bar) 18 H steel 19 H steel 20 Rebar (deformed bar steel) 21 Steel plate for bolts 22 H Steel or channel or angle braces 23 Pile manufacturing frame 24 Bolts 25 Nuts 26 Iron pipes for earth drills 27 Bedrock 28 Concrete columns with steel reinforced bars 29 H Steel beam 30 H Steel girder 31 Pile rebar A Reinforced iron plate B Reinforced iron plate C Reinforced iron plate D Of strong iron plate E crushed stone F reinforcing iron plate G reinforcing iron plate H reinforcement iron plate K receiving body of reinforcing iron plate Oh H steel gastric H steel receptacle cormorant H steel of the receiving body

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Claims (2)

[Scope of utility model registration request] 1. Regarding a conventional reinforced concrete bridge pier or a pillar portion of a reinforced concrete building, an H steel receiver 2 is welded and fixed to the foundation of the present invention in a cross shape, and is attached to the upper center of the cross H steel. One H steel strut 3 is welded and fixed at the abutting point, and four H steel braces 4 are welded and fixed to the H steel receiver and the appropriate lower position of the H steel strut, and the entire H steel strut is fixed. The surroundings are assembled with rebar 7, the frame is made up of panels, bolts and nuts, and the concrete pier work is completed. 2. A steel-reinforced concrete pile of the present invention in which H steel of an appropriate width is incorporated from end to end at the center of a concrete column of reinforced concrete to be buried underground by proceeding with conventional reinforced concrete pile or earth drill method. And concrete columns with steel rebar.