CN103452246B - A kind of grouting deformed steel pipe sleeve connected by steel grout anchor butt joint - Google Patents

Abstract

The invention discloses the grouting deformed steel pipe box cylinder that the slurry anchor docking of a kind of reinforcing bar connects, in described seamless steel pipe (1) from two ends to insert two connected reinforcing bars (7) and at cavity at pour into the non-shrinkage cement-based grouting material of high intensity (8) and form steel reinforcement abutting joints slurry anchor connection joint；Described grouting deformed steel pipe box cylinder directly uses seamless steel pipe (1) saw to cut processing and fabricating and forms；Seamless steel pipe (1) outer surface has the multiple tracks radially inverted trapezoidal groove (2) of rolling and processing molding, have with seamless steel pipe (1) inner surface at groove (2) same position and follow rolling groove (2) deformation and arc-shaped bulge loop rib (3) that convexes to form, the inverted trapezoidal groove (2) of described seamless steel pipe (1) outer surface vertically with seamless steel pipe (1) central point be boundary be that many middle parts, two ends are distributed less.The grouting deformed steel pipe box cylinder of the present invention, can be greatly reduced grouting cast steel or the expense of machining steel bushing, simplified processing process that in prefabrication and assembly construction concrete component, the anchor docking of steel bar stress slurry connects, can directly apply to engineering practice.

Description

A kind of grouting deformed steel pipe sleeve connected by steel grout anchor butt joint

technical field

The invention relates to a grouting deformed steel pipe sleeve for butt-joint connection of a prefabricated and assembled concrete member under stress with a reinforced grout anchor, and belongs to the technical field of concrete structure engineering.

Background technique

In order to meet the seismic performance requirements of prefabricated concrete structures, when precast concrete components are spliced and installed on site, the connection method and connection reliability of the main stressed steel bars between the prefabricated components become the key to the successful application of new prefabricated concrete structures. The currently known butt joint method of prefabricated concrete members mainly bearing steel bars and grout anchors is that the two steel bars to be connected are inserted into cylindrical cast steel sleeves, and the gaps are filled with high-strength non-shrinkage cement-based grouting material for full-grouting sleeve connection. method; or the sleeve of the slurry anchor steel bar is made by forging or stamping, or it is made by cutting round steel or polygonal steel, and the two steel bars to be connected are inserted into the cylindrical steel sleeve, and the gap is filled with high-strength The full grouting sleeve connection method of non-shrinkage cement-based grouting material; or the sleeve of the grout anchor steel bar is made into a wine bottle-shaped cast steel sleeve, one end is directly inserted into the sleeve by the connecting steel bar, and the other end is turned and connected at the mouth of the bottle The inner thread of the steel bar is screwed into the bottle mouth section of the cast steel sleeve after the straight thread is rolled at the end of the connected steel bar. The gap in the cast steel sleeve is filled with high-strength non-shrinking cement-based grouting material to form two connected steel bars. The root is a slurry anchor connection, and the other is a straight threaded semi-grouting cast steel sleeve connection method; or directly cut a round steel into a cylindrical steel sleeve with a bottom, and use a certain thickness of the bottom to process the connecting steel bar Internally threaded through hole, the two steel bars to be connected, one is directly inserted into the steel sleeve, connected by a high-strength non-receipt cement-based grouting slurry anchor through pressure filling, and the other is processed into a straight thread through one end, and it is directly screwed It is inserted into the threaded hole at the bottom of the steel sleeve to form a semi-grouting steel sleeve connection method that combines the grout anchor steel bar connection and the straight thread steel bar connection.

The above-mentioned known butt joint connection of prefabricated concrete members with stressed steel bars, for the grout anchor steel bar connection method of the full grouted cast steel sleeve, the cast steel sleeve needs to adopt high-strength and high-toughness cast steel materials and precision casting technology, which is easy to cast. defects, so its processing cost is high, which directly affects the popularization and application of large-scale projects; for the spiral continuous arc-shaped concave-convex corrugated rib full-grouting steel sleeve processed by rolling or spinning, the sleeve is under axial tension and pressure. Poor anti-deformation ability; the outer concave and inner convex fully grouted steel sleeves are cut at intervals, and the cutting process is large, which directly increases the production cost; The semi-grouted cast steel sleeve connected by straight thread or the cylindrical semi-grouted steel sleeve with bottom processed by cutting, the cast steel sleeve is prone to casting defects, and the steel sleeve processed from round steel has too much cutting process, And one of the ends of the connected steel bars needs to be processed into straight threads, which all lead to increased processing and manufacturing costs, poor economic indicators, and also affect the large-scale application of projects.

Contents of the invention

Technical problem: In order to overcome the deficiencies in the grouting sleeve technology of the existing steel grout anchor butt joint connection, the present invention provides a grouting deformed steel pipe sleeve for the reinforced steel grout anchor butt joint connection between prefabricated concrete structure prefabricated components, which can be directly used Low-alloy steel or alloy steel seamless steel pipes are used to make full-grouting sleeves, which avoids the high material requirements, high precision casting requirements and casting defects for cylindrical full-grouting cast steel sleeves or wine bottle-shaped semi-grouting cast steel sleeves. Affected by the mechanical performance, it avoids the disadvantage of poor axial tensile and compressive capacity of the fully grouted steel sleeve with continuous rotation of the inner and outer corrugated ribs, and also avoids the round steel cutting and processing half-grouting sleeve with one end as a slurry anchor reinforcement and the other end as a straight thread connection reinforcement Due to the defects of large amount of gold processing and low production efficiency of the cylinder, the good ductility of low-alloy steel and alloy steel seamless steel pipes is fully utilized, and the three-axis rollers with equi-triangular support are used to radially roll on the outer surface of the seamless steel pipe to form a The fully grouted deformed steel pipe sleeve with multiple channels of concave and convex in the axial direction is filled with high-strength non-shrinkage cement-based grouting materials in the gaps, which can realize the butt joint connection of grout anchor steel bars that can meet the mechanical connection performance requirements of steel bars stipulated in the national engineering code The joint improves the processing technology of the grouting sleeve, reduces the cost, and can be directly applied to the engineering practice of butt joint connection of prefabricated concrete members under stress with steel grout anchors at the construction site.

Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted by the grouting deformed steel pipe sleeve of the steel grout anchor butt joint connection of the present invention is as follows:

The grouting deformed steel pipe sleeve for the butt joint connection of steel grout anchors in the present invention includes a seamless steel pipe, an inverted trapezoidal groove on the outer surface of the steel pipe and an arc-shaped convex ring rib on the inner surface of the steel pipe, and two pairs of seamless steel pipes are inserted from both ends to be connected The steel bar is poured into the cavity with high-strength non-shrinkage cement-based grouting material to form the steel bar butt grout anchor connection joint; it is characterized in that: the grouting deformed steel pipe sleeve is directly made of seamless steel pipe sawing; the seamless steel pipe The outer surface has multiple radial inverted trapezoidal grooves formed by rolling, and the inner surface of the seamless steel pipe at the same part as the grooves has arc-shaped convex ring ribs formed by following the deformation of the rolling grooves. The inverted trapezoidal grooves on the outer surface of the seam steel pipe are bounded by the center point of the seamless steel pipe in the axial direction, and the two ends are more distributed than the middle part.

The inverted trapezoidal groove on the outer surface of the seamless steel pipe is formed by rolling and cold processing with three-axis rollers supported by equi-triangular supports. 40°～60°.

The inner surface of the seamless steel pipe corresponding to the inverted trapezoidal groove on the outer surface of the seamless steel pipe follows the deformation of the outer peripheral rolling groove to protrude to form an arc-shaped convex ring rib, and the rib height of the convex ring rib is 1.5-3mm.

The two ends of the seamless steel pipe are 15-25 mm away from the port, and the grouting port and the grouting port are opened with high-strength non-shrinking cement-based grouting material that is injected to fill the gap between the connected steel bar and the grouted deformed steel pipe sleeve.

The ports on both sides of the seamless steel pipe are provided with annular rubber plugs whose middle aperture is equal to the diameter of the connected steel bar and can be inserted into the connected steel bar.

A positioning pin is set in the middle of the seamless steel pipe to control the insertion depth of the connected steel bar.

Beneficial effects: the grouting deformed steel pipe sleeve provided by the present invention for the butt-joint connection of the prefabricated components of the prefabricated concrete structure under stress with steel grout anchors has the following advantages: 1) Directly use low-alloy or alloy seamless steel pipes for sawing and processing into grouting deformed steel pipes The sleeve improves the processing technology of the grouting sleeve, with high processing efficiency and simple molding, which effectively reduces the cost of the grouting sleeve; 2) The outer circumference of the seamless steel pipe of the grouting deformed steel pipe sleeve is processed by rolling the inverted trapezoidal groove, The strength and hardness of the surface of the inverted trapezoidal rolling part are improved by rolling and cold processing, and the axial deformation resistance of the deformed steel pipe sleeve is increased when the connected steel bar is under tension or compression. 3) When multiple inverted trapezoidal grooves with a certain width are formed on the outer periphery of the seamless steel pipe, the width of the arc-shaped convex ring rib formed on the inner wall of the corresponding steel pipe is increased under the premise that the height is guaranteed, that is, The shear resistance is improved, so that the pulling-out resistance of the grouting material anchorage section wrapped and inserted in the steel pipe sleeve to be connected to the steel bar is improved. 4) The grouted deformed steel pipe sleeve poured in the prefabricated concrete member has multiple inverted trapezoidal grooves with a certain width formed on its periphery to increase the bonding force with the concrete, achieving the same effect as the deformed steel crescent rib, improving The combined effect of the concrete protection layer on the outside of the grouted deformed steel pipe sleeve of the prefabricated component under the stress state prevents the component from partially premature cracking under the use state.

Description of drawings

Fig. 1 is a schematic diagram of a grouting deformed steel pipe sleeve of the present invention;

Figure 2 is an enlarged view of a typical radial groove on the outer surface of a seamless steel pipe with a grouted deformed steel pipe sleeve and an arc-shaped convex ring rib on the inner wall of the same part;

Fig. 3 is a schematic diagram of two connected stressed steel bars inserted into grouted deformed steel pipe sleeves, and pressure-filled with high-strength non-shrinkage cement-based grouting material to form a butt joint of grout-anchor steel bars;

Fig. 4 is a schematic diagram of a grouting deformed steel pipe sleeve formed by rolling a seamless steel pipe with three-axis rollers to form an outer concave and inner convex ring;

Fig. 5 is a schematic diagram of the butt joint connection of the vertical reinforcement of the prefabricated concrete member using a grouting deformed steel pipe sleeve;

Fig. 6 is a schematic diagram of the butt joint connection of the horizontal steel bar of the prefabricated concrete member using the grouted deformed steel pipe sleeve.

Among them are: seamless steel pipe 1, inverted trapezoidal groove 2, arc-shaped convex ring rib 3, slurry outlet 4, annular rubber plug 5, positioning pin 6, connected steel bar 7, cement-based grouting material 8.

detailed description

The grouted deformed steel pipe sleeve for the butt joint connection of the reinforced steel grout anchor between the prefabricated concrete structure prefabricated components, including the seamless steel pipe, the connected steel bar and the high-strength non-shrinkage cement-based grouting material filling the gap between the two; the grout The outer surface of the seamless steel pipe connected by the butt joint of the anchor steel bar is processed by rolling without cutting in the radial direction through the three-axis hydraulic roller, and the plastic deformation of the steel pipe material is used. After the outer surface of the steel pipe is rolled into an inverted trapezoidal groove, the groove part The surface layer is strengthened, the yield strength and ultimate strength are increased, and the hardness is slightly increased, which increases the deformation resistance of the sleeve under axial tension and pressure. The arc-shaped convex ring rib with a specified raised height and a certain width prevents the grouting material anchoring body filled between the connected steel bar and the steel pipe sleeve from sliding in the axial direction. The outer concave and inner convex rings on the inner and outer surfaces of the seamless steel pipe are arranged in multiple channels along the axial direction, and there are fewer arrangements in the middle part to form a longer grouting material anchorage section inserted into the second half of the steel bar in the steel pipe sleeve; More nearby parts are arranged to form multiple barriers to prevent the grouting anchorage section from pulling out. The seamless steel pipe of the fully grouted sleeve connected by the butt joint of the grout anchor steel bar has an inverted trapezoidal groove radially rolled on its outer surface, which is rolled and formed by a three-axis hydraulic roller, and a hydraulic jack pressurizes a moving wheel, Cooperate with two fixed wheels to synchronously drive the seamless steel pipe to rotate to form a continuous circumferential groove, the groove width is 4-8mm, the depth is 2-4mm, and the angle between the trapezoidal hypotenuse and the bottom edge of the groove is 40-60°. The height of the convex ring rib on the inner wall formed by simultaneous deformation with the outer peripheral groove is controlled at 1.5-3 mm. When the inverted trapezoidal groove with a certain width on the outer periphery of the seamless steel pipe is formed, the inner wall of the same part increases the width of the arc-shaped convex ring rib, which is equivalent to widening the tooth width of the tooth bottom of a similar mechanical screw tooth. , which enhances the shear resistance of the convex ring rib in the axial direction, that is, improves the mechanical bite force of the anchorage section of the anchoring steel grouting material in the sleeve. The two ports of the seamless steel pipe of the grouting deformed steel pipe sleeve are provided with rubber plugs to block the gap between the connected steel bar and the port of the sleeve, and a high-strength plug for pressure grouting to fill the gap is provided at a certain distance from the seamless steel pipe port. The grouting port and the grouting port of the cement-based grouting material can be used interchangeably; the grouting deformed steel pipe sleeve seamless steel pipe is provided with a control device at the symmetrical point in the middle of the axial direction to insert the connected steel bar into the deformed steel pipe sleeve The positioning pin of the length is convenient for controlling the insertion depth of the connected reinforced steel bars when prefabricating concrete components. When the horizontal steel bars are connected at the construction site, the positioning pins can also be omitted.

Compared with the prior art, the above-mentioned grouted deformed steel pipe sleeve connected by grout anchors retains the original grouted cast steel sleeve and the inner wall of the cut steel sleeve, and uses protrusions to effectively restrain and prevent the grouting of wrapped steel bars inserted into the grouting sleeve. The material anchoring section slides in the axial direction, which increases the mechanical bite force, but changes the shape and processing method of the protrusions on the inner wall of the grouting sleeve. The integrated processing and forming simplifies the processing technology, improves the processing efficiency, and avoids the defects of similar cast steel, or continuous rotating rolling arc-shaped corrugated concave-convex ribs and cutting steel sleeves. At the same time, the multi-channel inverted trapezoidal grooves on the outer surface of the seamless steel pipe are deformed and strengthened through rolling processing, which improves the deformation resistance of the grouting sleeve under axial tension and pressure. In addition, during the process of rolling the inverted trapezoidal groove with a certain width, the width of the raised arc-shaped convex ring rib formed in the steel pipe is enlarged, which strengthens the shear resistance of the rib.

The method of using the grouting deformed steel pipe sleeve of the present invention to carry out the butt joint connection of prefabricated concrete components with reinforced steel grout anchors is as follows: when making prefabricated components in the concrete prefabricated component factory, insert the end of a steel bar to be connected into a port with a rubber plug In the sleeve of the grouted deformed steel pipe, the head of the steel bar reaches the position of the positioning pin in the middle of the sleeve, the other end port of the grouted deformed steel pipe is fixed with the formwork of the prefabricated component, the plastic grouted pipe is connected and fixed with the grouting port and the grouting port, and the component is poured concrete and cured to specified strength. After the prefabricated concrete components are transported to the construction site, the prefabricated components are hoisted, and the grouted deformed steel pipe sleeve reserved for the components is aligned with the other connected steel bar and slowly inserted, the prefabricated components are spliced in place, and the gap between the prefabricated components is adjusted. After sealing around the seam, pour the stirred high-strength non-shrinkage cement-based grouting material from the grouting port at the lower position of the grouting deformed steel pipe sleeve, so that the grouting material is discharged from the grouting port at the higher position, sealing At the grout outlet, the grout material is cured to the specified strength to form the joint of the butt joint of the grout anchor reinforcement bar.

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1, 2, 3, and 4, it is a grouted deformed steel pipe sleeve joint for the butt joint connection of stressed steel grout anchors between prefabricated concrete structure prefabricated components, including seamless steel pipes 1, which are distributed on the outer surface at intervals along the axial direction A plurality of inverted trapezoidal grooves 2 and circular arc-shaped protruding convex ring ribs 3 distributed on the corresponding inner surface. The two ends of the seamless steel pipe 1 are provided with ring-shaped rubber plugs 5, the middle part is provided with a positioning pin 6 for controlling the insertion length of the connected steel bar 7, and a grouting port for pressure pouring grouting material is provided at a distance of 15 to 25 mm from the two ports. Slurry outlet 4.

The specific processing method of the steel grout anchor grouting deformed steel pipe sleeve is as follows:

(1) According to the diameter of the steel bar 7 to be connected, select a low-alloy steel or alloy steel seamless steel pipe 1 with a suitable length, diameter and wall thickness, and cut it directly for use;

(2) According to the material and wall thickness of the selected seamless steel pipe 1, select a suitable matching special roller 9 and a fixed wheel 10 forming an equi-triangular support, and roll the outer surface of the seamless steel pipe 1 along the axial direction on the three-axis rolling machine. Roll from the middle to the two ports according to the designed inverted trapezoidal groove 2 (Figure 4), and randomly check the height of the arc-shaped convex ring rib 3 protruding from the inner wall of the steel pipe near the port;

(3) Drill a positioning pin hole to control the length of the inserted steel bar in the axial middle part of the seamless steel pipe 1, and install the positioning pin 6 rivets;

(4) Drill 16-20mm of pressure-injected high-strength non-shrinkage cement-based grouting material at a distance of 15-25mm from the ports at both ends of the seamless steel pipe 1 and the grouting port 4, and install a special plastic joint for connecting the grouting plastic pipe. The clamping piece completes the processing of the grouted deformed steel pipe sleeve.

The construction method for the butt joint connection of the vertical stressed steel bars of the above-mentioned prefabricated concrete columns or wall components using grouting deformed steel pipe sleeves (Figure 5) is as follows:

(1) Firstly prefabricate the concrete column or concrete wall in layers, install the grouted deformed steel pipe sleeve to the end of the stressed steel bar 7 connected at the bottom of the component in the prefabricated component processing plant, and insert the grouted deformed steel pipe sleeve to the specified depth, The port where the steel bar is inserted is blocked with an annular rubber plug 5, and the other port of the sleeve is fixed with the prefabricated component mold, the concrete is poured and cured to the specified strength, and the mold is demoulded and stacked for use.

(2) When the prefabricated components are installed on site, the grouted deformed steel pipe sleeve port embedded on the connected reinforced steel bar at the bottom of the prefabricated component is aligned with the exposed connected steel bar 7 head protruding from the same position on the floor, and with the help of the Slowly lower the heavy machinery until the prefabricated components are installed in place. After the prefabricated components are corrected and temporarily fixed, the joints are sealed, and the stirred high-strength non-shrinkage cement is injected from the grouting port 4 of the deformed steel pipe sleeve at the lower position. Base grouting material 8, until the grouting material is discharged from the full section of the joint and the grouting outlet 4 at the high position of the grouting sleeve, it is blocked in time and then cured to the specified strength to complete the vertically stressed steel grout anchor connection of the prefabricated components.

The above-mentioned prefabricated concrete beams and beams, walls and walls or walls and columns of horizontal stress reinforcements are connected by grouting deformed steel pipe sleeves (Fig. 6) and the construction method is as follows:

(1) In the gap reserved for the connection of horizontal steel bars between prefabricated beams and beams, walls and walls, or walls and columns, first insert the grouted deformed steel pipe sleeve 1 together with the port ring rubber plug 5 into the horizontal joint where the left end is connected. On the steel bars 7, after the other half of the prefabricated components are installed in place, the left end of the connected stressed horizontal steel bar 7 is aligned with the right end one by one, and the grout installed on the left end of the connected horizontal steel bar 7 is The deformed steel pipe sleeve 1 moves to the right until the symmetrical middle part of the sleeve is located in the middle of the heads of the two horizontal steel bars 7 to be connected, check the sealing effect of the annular rubber plugs 5 at both ports of the sleeve, install and connect Plastic pipes for grouting and draining port 4.

(2) Concrete is poured and maintained in the gaps reserved for the connection of prefabricated beams and beams, walls and walls or walls and columns with horizontal steel bars, and high-strength non-shrinkage cement-based grouting is pressure-filled from the grouting port 4 reserved for grouting deformed steel pipe sleeve 1 Material 8, until the grouting material 4 is discharged and blocked at the grout outlet, and the butt joint connection of the grout anchor reinforcement of the horizontal reinforcement 7 between the prefabricated components is completed.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (1)

1. A grouted deformed steel pipe sleeve for butt-connected steel grout anchors, including a seamless steel pipe (1), an inverted trapezoidal groove on the outer surface of the steel pipe (2) and an arc-shaped convex ring rib (3) on the inner surface of the steel pipe. Two connected steel bars (7) are inserted into the seam steel pipe (1) from both ends, and high-strength non-shrinkage cement-based grouting material (8) is poured into the cavity to form a steel bar butt grout-anchor connection joint; it is characterized in that: The above-mentioned grouting deformed steel pipe sleeve is directly made of seamless steel pipe (1) by sawing; the outer surface of the seamless steel pipe (1) has multiple radial inverted trapezoidal grooves formed by rolling and cold processing with three-axis rollers supported by equi-triangular supports. The groove (2), the inner surface of the seamless steel pipe (1) at the same position as the groove (2) has an arc-shaped convex ring rib (3) formed by protruding following the deformation of the rolling groove (2). The inverted trapezoidal groove (2) on the outer surface of the seam steel pipe (1) is bounded by the center point of the seamless steel pipe (1) in the axial direction, and the two ends are distributed more in the middle than in the middle. The diameter of the connected steel bar (7) can be inserted into the annular rubber plug (5) of the connected steel bar (7), and the positioning pin (6) for controlling the insertion depth of the connected steel bar (7) is set in the middle of the seamless steel pipe (1); The width of the groove is 4-8mm, the depth is 2-4mm, the angle between the trapezoidal hypotenuse and the bottom edge of the groove is 40°-60°; the corresponding part of the inverted trapezoidal groove (2) on the outer surface of the seamless steel pipe (1) The inner surface of the seamless steel pipe (1) protrudes following the deformation of the outer peripheral rolling groove to form an arc-shaped convex ring rib (3), and the rib height of the convex ring rib (3) is 1.5-3mm; the seamless steel pipe (1) A grouting port and a grouting port (4) of high-strength non-shrinking cement-based grouting material are set up at a distance of 15 to 25 mm from the port at both ends to fill the gap between the connected steel bar and the grouted deformed steel pipe sleeve; The specific processing method of the grouted deformed steel pipe sleeve connected by the above-mentioned steel grout anchor butt joint is as follows: Step 1. According to the diameter of the steel bar (7) to be connected, select a low-alloy steel or alloy steel seamless steel pipe (1) with a suitable length, diameter and wall thickness, and cut it directly for use; Step 2. According to the material and wall thickness of the selected seamless steel pipe (1), select a suitable matching special roller and a fixed wheel forming an equi-triangular support. Axially roll from the middle to the two ports according to the number of designed inverted trapezoidal grooves (2), and randomly check the height of the arc-shaped convex ring rib (3) protruding from the inner wall of the steel pipe near the port; Step 3. Drill a positioning pin hole to control the length of the inserted steel bar in the axial middle part of the seamless steel pipe (1), and install the positioning pin (6) to fix it; Step 4. Drill 16-20mm injection of high-strength non-shrinkage cement-based grouting material at a distance of 15-25mm from both ends of the seamless steel pipe (1) and the grouting port (4), and install special connection grouting Plastic clips for plastic pipes, complete the processing of grouting deformed steel pipe sleeves; The construction method for the butt joint connection of the steel bars of the prefabricated concrete columns or wall components using the above-mentioned grouted deformed steel pipe sleeves is as follows: Step 1. First, prefabricate the concrete column or concrete wall in layers. Install the grouted deformed steel pipe sleeve to the end of the connected steel bar (7) at the bottom of the component in the prefabricated component processing plant, and insert the grouted deformed steel pipe sleeve to the specified depth. The port where the steel bar is inserted is blocked with an annular rubber plug (5), the other port of the grouted deformed steel pipe sleeve is fixed to the prefabricated component mold, the concrete is poured and cured to the specified strength, and the demoulding is stacked for use; Step 2. When the prefabricated components are installed on site, the grouted deformed steel pipe sleeve opening embedded on the connected reinforced steel bars at the bottom of the prefabricated components is aligned with the exposed connected steel bars (7) head protruding from the same position on the floor, and With the help of hoisting machinery, slowly descend until the prefabricated components are installed in place. After the prefabricated components are corrected and temporarily fixed, the seams are sealed, and the high-strength and non-shrinkage well-mixed steel pipe sleeves are pressure-injected from the grouting port of the grouted deformed steel pipe sleeve at the low position. Cement-based grouting material (8), until the grouting material is discharged from the full section of the joint and the grouting port (4) at the high position of the grouting deformed steel pipe sleeve, it is blocked in time and then cured to the specified strength, and the vertical force of the prefabricated component is completed Reinforced grout anchor connection; The construction method for the butt joint connection of prefabricated concrete beams and beams, walls and walls or walls and columns using the above-mentioned grouted deformed steel pipe sleeves is as follows: Step 1. In the prefabricated beam-to-beam, wall-to-wall, or wall-to-column horizontal reinforcement connections reserved gaps, first insert the grouted deformed steel pipe sleeve with the port ring rubber plug (5) into the left end of the connected steel bar as a whole (7), after the other half of the prefabricated components are installed in place, align the left end of the connected steel bar (7) with the right end one by one, and grout the left end of the connected steel bar (7) Move the deformed steel pipe sleeve to the right until the symmetrical middle part of the grouted deformed steel pipe sleeve is located between the head and the head of the connected steel bar (7), and check the sealing of the ring rubber plugs (5) at the two ports of the grouted deformed steel pipe sleeve Sealing effect, install the plastic pipe connecting the grouting port and the grouting port (4); Step 2. Pour the concrete in the gaps reserved for the horizontal reinforcement connections between prefabricated beams and beams, walls and walls, or walls and columns and maintain them. Pressure pour high-strength non-shrinkage cement-based grouting material from the grouting port reserved for grouting deformed steel pipe sleeves ( 8), until the grouting material at the grout outlet is discharged and blocked, and the butt connection of the grout anchor reinforcement of the connected reinforcement (7) between the prefabricated components is completed.