CN211368671U - Pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap - Google Patents
Pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap Download PDFInfo
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- CN211368671U CN211368671U CN201921755734.5U CN201921755734U CN211368671U CN 211368671 U CN211368671 U CN 211368671U CN 201921755734 U CN201921755734 U CN 201921755734U CN 211368671 U CN211368671 U CN 211368671U
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Abstract
The utility model discloses a pre-buried steel sleeve joint structure between a precast tubular pile and a precast pile cap, which comprises a precast pile cap component A, a precast tubular pile component B, a steel sleeve joint component C and a connecting component D; the prefabricated bearing platform component A and the steel sleeve joint component C are prefabricated into a bearing platform combined component with a joint, and the prefabricated tubular pile component B and the prefabricated bearing platform combined component with the joint are connected into a whole through the connecting component D. The joint structure has the beneficial effects that the integrity and the reliability of the joint are improved by reserving the connecting steel bars and grouting the top, and the bending resistance and the shearing resistance of the joint position are effectively improved by arranging the inner sleeve and the stiffening ribs in the joint structure; the structure is safe and reliable, convenient and fast in construction and high in prefabrication rate. The joint structure of the embedded steel sleeve between the precast tubular pile and the precast bearing platform has the advantages of clear and direct force transmission, controllable welding seam quality, strengthened connection integrity of the precast tubular pile and the precast bearing platform, improved bending resistance and shear resistance of joint positions, convenient and simple factory processing and field construction, and easily ensured quality.
Description
Technical Field
The utility model relates to a connecting structure of a railway pipe pile and a bearing platform; in particular to a joint structure of a pre-buried steel sleeve between a precast tubular pile and a precast cushion cap.
Background
At present, the connection between the precast tubular pile and the cast-in-place bearing platform is mostly realized by adopting a core filling concrete cast-in-place scheme according to the specification and the drawing set, and the connection between the precast tubular pile and the cast-in-place bearing platform is realized by arranging an anchoring steel bar on the pile top and filling the core filling concrete. At present, the prefabricated assembled structure has good development prospect due to the advantages of high industrialization efficiency, high production quality, convenient construction, high construction speed and the like, is widely applied all over the country, and at present, a connection structure which has high prefabrication degree and can reliably connect prefabricated parts is urgently needed by railways.
Disclosure of Invention
The utility model aims to solve the technical problem that a joint design that can reliably be connected precast tubular pile and precast cushion cap is provided.
The technical scheme adopted by the utility model is that a joint structure of a pre-buried steel sleeve joint between a prefabricated pipe pile and a prefabricated bearing platform comprises a prefabricated bearing platform part A, a prefabricated pipe pile part B, a steel sleeve joint part C and a connecting part D; prefabricated cushion cap part A and steel sleeve joint part C prefabricate the cushion cap assembled component that has the joint as an organic whole, adapting unit D connects prefabricated tubular pile part B and the prefabricated cushion cap assembled component that has the joint as an organic whole.
The bearing platform part A comprises a prefabricated bearing platform, a joint reserved mounting groove, an exhaust reserved hole channel and a grouting reserved hole channel;
the steel sleeve joint component C comprises a sleeve top ring plate, an outer sleeve and an inner sleeve; connecting steel bars are welded on the top ring plate of the sleeve, a transverse reinforcing ring is formed on the inner circumferential surface of the inner sleeve, the lower part of the inner sleeve is sealed by a lower sealing plate, and through holes matched with the positions of screw holes in the precast tubular pile are formed on the circumferential surfaces of the outer sleeve and the inner sleeve;
and the connecting steel bar in the steel sleeve joint component C penetrates into the joint mounting groove of the prefabricated bearing platform component A, and the steel sleeve joint component C and the prefabricated bearing platform component A form a whole.
The tubular pile component B comprises a precast tubular pile, wherein a high-strength screw rod preformed hole is formed on the peripheral surface of the precast tubular pile;
the connecting part D comprises a high-strength screw rod, a nut and a base plate;
precast tubular pile changes over into in the cavity that outer sleeve and inner skleeve formed, outer sleeve, precast tubular pile and inner skleeve are run through to the screw rod that excels in, and the cushion cap composite member that will have the joint through mounting nut and installation backing plate is fastened as an organic wholely with the tubular pile part.
The utility model has the advantages that the integrity and reliability of the joint are improved by reserving the connecting steel bars and grouting the top, and the bending resistance and the shearing resistance of the joint position are effectively improved by arranging the inner sleeve and the stiffening ribs in the joint structure; the structure is safe and reliable, convenient and fast in construction and high in prefabrication rate.
This pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap has that it is clear and definite, direct, the welding seam quality is controllable to pass power, can strengthen the connection wholeness of precast tubular pile and precast cushion cap, improves the bending resistance and the ability of shearing of joint position, and processing of mill and site operation are convenient simple simultaneously, and the quality is easily guaranteed.
Drawings
FIG. 1 is a schematic view of a prefabricated platform A of the present invention;
fig. 2 is a schematic view of the precast tubular pile B of the present invention;
FIG. 3 is a schematic view of a steel sleeve joint component C of the present invention;
fig. 4 is a schematic view of a connecting part D of the present invention;
FIG. 5 is a schematic view of the prefabricated bearing platform A and the steel sleeve joint component C of the present invention prefabricated as a whole;
FIG. 6 is a schematic view of the whole joint structure of the pre-buried steel sleeve between the precast tubular pile and the precast pile cap of the present invention;
fig. 6a is a cross-sectional view taken along the line of fig. 6E-E.
In the figure:
1. prefabricating bearing platform 2, connecting reserved mounting groove 3, exhausting reserved hole channel 4 and grouting reserved hole channel
5. Precast tubular pile 6, high-strength screw rod preformed hole 7, connecting reinforcing steel bar 8, sleeve top ring plate
9. Outer sleeve 10, inner sleeve 11, transverse reinforcement ring 12, lower sealing plate
13. High-strength screw 14, nut 15 and washer.
Detailed Description
The invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1 to 6, the connection structure between a precast tubular pile and a precast pile cap of the present invention includes a precast pile cap component a, a precast tubular pile component B, a steel sleeve joint component C, and a connection component D; prefabricated cushion cap part A and steel sleeve joint part C are prefabricated integrative cushion cap integrated component that has the joint, adapting unit D connects prefabricated tubular pile part B and prefabricated cushion cap integrated component that has the joint as an organic whole.
As shown in fig. 1, 3 and 5, the prefabricated bearing platform component a comprises a bearing platform 1, a high-strength screw hole reserved on the bearing platform, a grouting duct 4, an exhaust duct 3 and a connector mounting groove 2; the diameter of the duct is 5cm, and the steel sleeve joint part C comprises a sleeve top ring plate 8, an outer sleeve 9 and an inner sleeve 10 which are welded into a whole; the sleeve top ring plate 8 is welded with connecting steel bars 7, the inner circumferential surface of the inner sleeve 10 is provided with a transverse reinforcing ring 11 for improving the bending resistance and the shearing resistance of a joint position, the lower part of the inner sleeve 10 is welded and sealed by a lower sealing plate 12, and the circumferential surfaces of the outer sleeve 9 and the inner sleeve 10 are provided with through holes matched with the positions of the screw holes 6 on the precast tubular pile 5; and the connecting steel bars 7 penetrate into the joint mounting grooves 2 in the bearing platform part A, and the connecting steel bars 7 and the bearing platform part A form a whole.
As shown in fig. 2 and 4, the pipe pile component B comprises a precast pipe pile 5, wherein a high-strength screw hole 6 is formed on the circumferential surface of the precast pipe pile 5, and the diameter of the screw hole is 1cm larger than that of a high-strength screw 13. The connecting part D is a high-strength screw 13.
As shown in fig. 6 and 6a, the precast tubular pile 5 rotates into the cavity formed by the outer sleeve 9 and the inner sleeve 10, the high-strength screw 13 penetrates through the outer sleeve 9, the precast tubular pile 5 and the inner sleeve 10, and the bearing platform combined component with the joint and the tubular pile component are fastened into a whole through the mounting nut 14 and the mounting cushion plate 15.
The steel sleeve joint component C is pre-buried in a joint reserved mounting groove of the bearing platform component A, is prefabricated into a whole in a factory, and then a bearing platform combined component which is prefabricated by the steel sleeve joint component C and the bearing platform component A and is provided with a joint is sleeved into the top of the tubular pile component B and is connected with the connecting component D. High-pressure grouting is carried out through the grouting reserved hole of the bearing platform part A, and slurry is filled in the cavity in the pile top of the precast tubular pile, so that the integrity of the joint can be effectively improved, and the stress of the structure is improved.
The utility model improves the integrity and reliability of the joint by reserving the connecting steel bars and grouting the top, and the inner sleeve and the stiffening ribs are arranged in the joint structure to effectively improve the bending resistance and the shearing resistance of the joint position; the structure is safe and reliable, convenient and fast in construction and high in prefabrication rate.
This pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap has that it is clear and definite, direct, the welding seam quality is controllable to pass power, can strengthen the connection wholeness of precast tubular pile and precast cushion cap, improves the bending resistance and the ability of shearing of joint position, and processing of mill and site operation are convenient simple simultaneously, and the quality is easily guaranteed.
It is worth pointing out that the protection scope of the present invention is not limited to the above specific example, and according to the basic technical concept of the present invention, the same basic structure can be used, so as to achieve the purpose of the present invention, as long as the ordinary skilled person in the art does not need to work creatively, the conceivable embodiments all belong to the protection scope of the present invention.
Claims (3)
1. A pre-buried steel sleeve joint structure between a precast tubular pile and a precast pile cap is characterized by comprising a precast pile cap component A, a precast tubular pile component B, a steel sleeve joint component C and a connecting component D; prefabricated cushion cap part A and steel sleeve joint part C prefabricate the cushion cap assembled component that has the joint as an organic whole, adapting unit D connects prefabricated tubular pile part B and the prefabricated cushion cap assembled component that has the joint as an organic whole.
2. The pre-buried steel sleeve joint structure between the precast tubular pile and the precast pile cap according to claim 1,
the bearing platform part A comprises a prefabricated bearing platform (1), a joint reserved mounting groove (2), an exhaust reserved hole channel (3) and a grouting reserved hole channel (4);
the steel sleeve joint component C comprises a sleeve top ring plate (8), an outer sleeve (9) and an inner sleeve (10); connecting steel bars (7) are welded on the sleeve top ring plate (8), a transverse reinforcing ring (11) is formed on the inner circumferential surface of the inner sleeve (10), the lower part of the inner sleeve (10) is sealed by a lower sealing plate (12), and through holes matched with the positions of the high-strength screw preformed holes (6) in the precast tubular pile (5) are formed on the circumferential surfaces of the outer sleeve (9) and the inner sleeve (10);
connecting steel bars (7) in the steel sleeve joint component C penetrate into the joint reserved mounting groove (2) of the prefabricated bearing platform component A, and the steel sleeve joint component C and the prefabricated bearing platform component A form a whole.
3. The pre-buried steel sleeve joint structure between the precast tubular pile and the precast pile cap according to claim 2,
the tubular pile component B comprises a precast tubular pile (5), wherein a high-strength screw rod preformed hole (6) is formed in the circumferential surface of the precast tubular pile (5);
the connecting part D comprises a high-strength screw (13), a nut (14) and a backing plate (15);
precast tubular pile (5) are shifted into in the cavity that outer sleeve (9) and inner skleeve (10) formed, outer sleeve (9), precast tubular pile (5) and inner skleeve (10) are run through to high strength screw rod (13), and the cushion cap composite member and the tubular pile part that will have the joint through mounting nut (14) and installation backing plate (15) are fastened as an organic wholely.
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CN201921755734.5U CN211368671U (en) | 2019-10-18 | 2019-10-18 | Pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap |
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CN201921755734.5U CN211368671U (en) | 2019-10-18 | 2019-10-18 | Pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110644470A (en) * | 2019-10-18 | 2020-01-03 | 中国铁路设计集团有限公司 | Pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110644470A (en) * | 2019-10-18 | 2020-01-03 | 中国铁路设计集团有限公司 | Pre-buried steel sleeve joint design between precast tubular pile and precast cushion cap |
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