Positioning and connecting structure of assembled bridge pier

Abstract

The utility model discloses a positioning connection structure of an assembled bridge pier, which belongs to the technical field of bridge construction and comprises a first prefabricated section and a second prefabricated section, a plurality of slots are arranged on the end face of the first prefabricated section, and clamping grooves are arranged in the inner walls of the slots; a plurality of inserting plates are arranged on the end face of the second prefabricated segment, sliding grooves corresponding to the clamping grooves are formed in the inserting plates, and clamping blocks are elastically and slidably connected into the sliding grooves; the first prefabricated section and the second prefabricated section are connected in a matched mode through the inserting grooves and the inserting plates. The first prefabricated section and the second prefabricated section are provided with an inserting groove structure and an inserting plate structure correspondingly, so that preliminary matched connection can be formed between the first prefabricated section and the second prefabricated section, and meanwhile clamping grooves and clamping blocks perpendicular to the inserting plate and the inserting groove are further arranged on the inserting plate and the inserting groove. Therefore, the axial position between the first prefabricated section and the second prefabricated section is further limited, it is guaranteed that the first prefabricated section and the second prefabricated section can form stable matched connection, and loosening is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of building connection technology, more specifically, it relates to a positioning connection structure of spliced pier. BACKGROUND

[0002] Traditional bridge site pouring construction method has the following shortcomings: 1. erect a large number of support, traffic is greatly affected; 2. a large number of labor is needed for on-site operation; 3. low construction efficiency, long construction period; 4. dust, mud, noise and other environmental impacts; 5. high energy consumption of the industry as a whole. Industrialized prefabricated assembly bridge can effectively solve the above shortcomings, adapt to the trend of industrial upgrading, ease the pressure of rising labor costs, effectively promote the development of the whole industry chain, and gradually become an important development direction of the next generation of bridge engineering.

[0003] Prefabricated segment spliced pier can be connected by post-tensioned prestressed tendon; the advantage of post-tensioned prestressed tendon connection is that the pier body can be divided into several segments, reducing the size and weight of prefabricated components, reducing transportation and hoisting difficulty, and significantly improving construction quality and shortening construction period; the disadvantage is that the segment prefabricated spliced pier connected by post-tensioned prestressed tendon has poor integrity, in order to ensure the integrity, the connection mode of post-tensioned prestressed tendon is often mixed with other connection modes, making the construction process complex and requiring high precision for on-site assembly.

[0004] For example: Chinese patent No. CN207392042U, announcement date May 22, 2018, the name of the utility model is buckle type prefabricated segment spliced pier connecting device, the application discloses a positioning connection structure of spliced pier, which comprises a prefabricated segment and an intermediate connecting part, the connecting part comprises a first connecting part and a second connecting part, the protruding part of the first connecting part is inserted into the groove of the second connecting part to realize the fixation of the first connecting part and the second connecting part; the lower insert of the first connecting part is inserted into the first recess of the lower prefabricated segment to realize the fixation of the first connecting part and the lower prefabricated segment; the upper insert of the second connecting part is inserted into the second recess of the upper prefabricated segment to realize the fixation of the second connecting part and the upper prefabricated segment. However, the scheme forms mutual nesting by groove and insert, and does not form stable and effective connection. UTILITY MODEL CONTENTS

[0005] The utility model overcomes the problem of unstable connection of the existing positioning connection structure of spliced pier, and provides a positioning connection structure of spliced pier, which has simple structure and can form effective and stable connection between spliced piers, avoiding axial disengagement of spliced piers.

[0006] In order to solve the above technical problems, the utility model discloses the following technical scheme: A positioning and connecting structure of assembled pier, including first prefabricated section and second prefabricated section, first prefabricated section end face is equipped with a plurality of insertion slot, the inner wall of insertion slot is equipped with the slot of carding, and the second prefabricated section end face is equipped with a plurality of insertion plate, and the insertion plate is equipped with the sliding slot of corresponding carding, and the sliding slot is elastically slidably connected with the card block, the first prefabricated section with second prefabricated section is connected through the insertion slot and the insertion plate cooperation.The scheme is provided with insertion slot and insertion plate structure in first prefabricated section and second prefabricated section respectively, so that first prefabricated section and second prefabricated section can form the preliminary cooperation and connection between them, and the slot and the card block perpendicular to the insertion plate and the insertion slot are also arranged on the insertion plate and the insertion slot, so that the axial position between first prefabricated section and second prefabricated section can be further limited, and first prefabricated section and second prefabricated section can form stable cooperation and connection, and will not be loose.The slot and the sliding slot are elastically slidably connected, when the insertion plate is inserted into the insertion slot, under the elastic action, the card block can be popped into the slot, and automatic cooperation is formed, so that the construction difficulty between first prefabricated section and second prefabricated section is reduced.

[0007] As preferred, the slot is provided with two groups and symmetrically arranged in the insertion slot, and the insertion plate is provided with the card block adapted to the slot on both sides. The slot in the insertion slot is provided with two groups, the card block structure on the insertion plate is also provided with two groups, and the two groups of slots and card blocks are symmetrically arranged respectively, which can improve the connection stability between the slot and the card block, thereby improving the connection stability between the first prefabricated section and the second prefabricated section.

[0008] As preferred, the sliding slot is provided with a first elastic member, one end of the first elastic member is fixedly connected with the bottom of the sliding slot, and the other end of the first elastic member is fixedly connected with the card block, and the card block extends out of the sliding slot through the first elastic member. The first elastic member is a spring structure, and under the action of the first elastic member, the card block can slide in the sliding slot. When the insertion plate is inserted into the insertion slot, the inner wall of the insertion slot will press the card block, so that the card block enters the sliding slot. When the insertion plate is completely inserted into the insertion slot, the position of the sliding slot is aligned with the position of the slot. Under the action of the first elastic member, the card block is popped into the slot, so that the first prefabricated section and the second prefabricated section are axially limited.

[0009] As preferred, the insertion slot and the insertion plate are provided with a connecting assembly, and the insertion slot and the insertion plate are respectively anchored to the first prefabricated section and the second prefabricated section through the connecting assembly. The connecting assembly on the insertion plate and the insertion slot is used for the installation of the insertion plate and the insertion slot on the second prefabricated section and the first prefabricated section. The insertion slot and the insertion plate are fixed by anchoring, which ensures the stability and firmness of the insertion slot and the insertion plate on the prefabricated section.

[0010] As preferred, the connecting assembly comprises a steel plate, a plurality of through holes are arranged on the steel plate, and a steel bar is arranged in the through hole to form a shear key.

[0011] As preferred, the end of the clamping block is a circular truncated cone. The end of the clamping block is arranged as a circular truncated cone structure, which is beneficial to the clamping block entering the clamping groove to form a stable fit.

[0012] As preferred, a plurality of prestressed steel beam holes are further arranged on the first and second prefabricated segments. The prestressed steel beam holes arranged between the first and second prefabricated segments can pass through the steel beam, thereby strengthening the connection strength between the first and second prefabricated segments.

[0013] As preferred, a receiving groove is arranged on the insert plate corresponding to the position of the sliding groove notch, and a baffle is elastically and slidably connected in the receiving groove. The receiving groove can accommodate the baffle, and the baffle can be ejected and stopped at the position of the sliding groove notch under the action of elastic force, thereby stopping the clamping block in the sliding groove. When the insert plate and the insert groove are inserted, the outer wall of the notch of the insert groove can push the baffle into the receiving groove, thereby causing the clamping block to be ejected and enter the clamping groove on the insert groove, forming an automatic fixed assembly.

[0014] As preferred, a second elastic member is arranged in the receiving groove, one end of the second elastic member is fixedly connected with the bottom of the receiving groove, the other end of the second elastic member is fixedly connected with the baffle, and the baffle extends out of the receiving groove through the second elastic member. The second elastic member is a spring structure, and the second elastic member can cause the baffle to slide in the receiving groove. Under normal conditions, the baffle is located outside the receiving groove under the action of the second elastic member. Only when the insert groove and the insert plate are inserted, the baffle will be pushed into the receiving groove by the insert groove, thereby releasing the constraint of the clamping block.

[0015] Compared with the prior art, the utility model has the advantages of simple structure, effective and stable connection between the assembled bridge piers, avoidance of axial disengagement of the assembled bridge piers, formation of the same first and second prefabricated segments (or insert plates and insert grooves) for different cross-section bridge piers, facilitation of standardized production, stable connection, automatic fit, great reduction of construction difficulty, shortening of construction period, PBL shear key anchoring of the insert plate and the insert groove to the prefabricated segments, connection between the two through the clamping block inserted in the hole formed by the clamping groove and the sliding groove, and guarantee of effective connection between adjacent prefabricated segments even under the action of wind load and other transverse load during construction. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the whole structure of the utility model.

[0017] Figure 2 for Figure 1 Sectional view along the AA direction.

[0018] Figure 3 for Figure 1 Sectional view along the BB direction.

[0019] Figure 4 This is a schematic diagram of the insert plate structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the slot structure of this utility model.

[0021] Figure 6 This is a schematic diagram of another prefabricated segment cross-section of this utility model.

[0022] Figure 7 This is a schematic diagram of another prefabricated segment cross-section of this utility model.

[0023] In the diagram: 1. First prefabricated segment, 11. Slot, 12. Card slot, 13. Plate, 131. Perforation, 2. Second prefabricated segment, 21. Insert plate, 211. Slide groove, 212. Card block, 213. First elastic element, 214. Storage groove, 215. Baffle, 216. Second elastic element, 3. Connecting assembly, 31. Steel plate, 311. Through hole, 4. Prestressed steel strand hole. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Example 1: As Figures 1 to 7 The diagram illustrates a positioning and connection structure for an assembled bridge pier, comprising a first prefabricated segment 1 and a second prefabricated segment 2. Both segments can be prefabricated in a factory. They can interlock to form a stable connection, simplifying on-site construction and shortening the construction period. Specifically, the first prefabricated segment 1 is the lower structure, and the second prefabricated segment 2 is the upper structure, meaning the second segment 2 connects to the first prefabricated segment 1 from above. A slot 11 is provided at the cross-section of the first prefabricated segment 1, and an insert plate 21 is provided at the cross-section of the second prefabricated segment 2. To ensure the connection strength between the first and second prefabricated segments, multiple slots 11 and insert plates 21 are provided. In this embodiment, twelve sets of slots 11 and insert plates 21 are used. Figure 2As shown, the cross section of the first prefabricated segment 1 is rectangular, and the cross section of the slot 11 is also rectangular; two groups of slots 11 are arranged at each corner of the cross section of the first prefabricated segment 1, and the two groups of slots 11 at each corner are perpendicular to each other; and on the cross section of the second prefabricated segment 2, there are plug plates 21 corresponding to the positions of the slots 11 on the first prefabricated segment 1, and the first prefabricated segment 1 and the second prefabricated segment 2 are connected through the slots 11 and the plug plates 21. Of course, the actual arrangement can be considered according to the specific construction requirements and connection strength and other factors.

[0026] In order to prevent the first prefabricated segment 1 and the second prefabricated segment 2 from simply nesting and easily loosening in the axial direction, a clamping groove 12 perpendicular to the slot depth of the slot 11 is arranged in the slot 11, and the clamping groove 12 is arranged on the inner wall of the slot 11. In order to ensure the stability of the connection, the clamping groove 12 is arranged on the two symmetrical inner walls of the slot 11. Since the clamping groove 12 is located inside the slot 11, the processing of the clamping groove 12 is not convenient, and the plate 13 with holes is arranged in the slot 11 in this scheme, as shown in the figure. Figure 5 The plate 13 is fixedly nested in the slot 11, and two groups of perforations 131 are arranged on the plate 13. The plate 12 is tightly attached to the slot 11, and the clamping groove 12 structure is formed between the perforations 131 and the inner wall of the slot 11, thereby reducing the processing difficulty of the clamping groove 12. A sliding groove 211 is arranged on the plug plate 21, and the sliding groove 211 is perpendicular to the surface of the plug plate 21. A first elastic member 213 is arranged in the sliding groove 211, and the first elastic member 213 is a round spring structure. One end of the first elastic member 213 is fixedly connected to the groove bottom of the sliding groove 211, and the other end of the first elastic member 213 is connected to a clamping block 212. Under the action of the first elastic member 213, the clamping block 212 partially protrudes from the sliding groove 211, that is, a part of the clamping block 212 is located inside the sliding groove 211, and a part of the clamping block 212 is located outside the slot of the sliding groove 211. Since the clamping grooves 12 in the slot 11 are symmetrically distributed on the inner wall of the slot 11, the sliding grooves 211 are also symmetrically distributed on the plug plate 21, that is, the sliding grooves 211 are located on the upper and lower surfaces of the plug plate 21, as shown in the figure. Figure 4 As shown, two sliding grooves 211 are arranged on the upper and lower surfaces of the plug plate 21, respectively, and the number and positions of the sliding grooves 211 are adapted to the number and positions of the clamping grooves 12.

[0027] It should be noted that the sliding grooves 211 on the upper and lower surfaces of the plug plate 21 can be coaxially arranged or non-coaxially arranged. In this embodiment, they are coaxially arranged, but the two sliding grooves 211 are not interconnected, so as to prevent the first elastic member 213 from losing the supporting point and being unable to elastically act on the clamping block 212.

[0028] In construction, first, epoxy resin is applied on the section of the lower first prefabricated segment 1, and then the upper second prefabricated segment 2 is hoisted above the first prefabricated segment 1, the insertion plate 21 on the second prefabricated segment 2 is aligned with the insertion slot 11 on the first prefabricated segment 1, when the insertion plate 21 is inserted into the insertion slot 11, the clamping block 212 needs to be pressed so that the clamping block 212 is completely embedded in the sliding groove 211, and when the position of the sliding groove 211 on the insertion plate 21 starts to enter the insertion slot 11, the clamping block 212 can be stopped by the inner wall of the insertion slot 11, and as the insertion plate 21 continues to be inserted into the insertion slot 11, the position of the sliding groove 211 on the insertion plate 21 will be aligned with the clamping groove 12 in the insertion slot 11, and the clamping block 212 also loses the limit of the inner wall of the insertion slot 11, under the action of the first elastic member 213, the clamping block 212 will be partially pushed into the clamping groove 12, that is, there are clamping blocks 212 in the clamping groove 12 and the sliding groove 211, thereby forming axial limiting between the first prefabricated segment 1 and the second prefabricated segment 2, improving the connection strength between the first prefabricated segment 1 and the second prefabricated segment 2, preventing the two from being axially loose; realizing the rapid connection of the first prefabricated segment 1 and the second prefabricated segment 2, achieving the purpose of simplifying the on-site construction process, ensuring the integrity of the structure, and shortening the construction period.

[0029] It should be noted that in the present scheme, the end of the clamping block 212 away from the first spring 213 is a circular truncated cone structure, which facilitates the cooperation between the clamping block 212 and the clamping groove 12, and protects the movement of the clamping block 212 to be more smooth, and the clamping block 212 will not be stuck in the slot of the clamping groove 12 due to manufacturing errors.

[0030] A connecting assembly 3 is further arranged between the first prefabricated segment 1 and the insertion slot 11, and between the second prefabricated segment 2 and the insertion plate 21, the connecting assembly 3 includes two groups of parallel arranged steel plates 31; the steel plates 31 are arranged in parallel at the back position of the insertion plate 21 and the back position of the insertion slot 11, and are used for connecting the insertion slot 11 and the insertion plate 21 with the first prefabricated segment 1 and the second prefabricated segment 2 respectively. A plurality of groups of through holes 311 are arranged on the steel plates 31, and steel bars (not shown in the figure) are arranged in the through holes 311, the steel bars pass through the aligned through holes 311 of the two steel plates 31, and the steel plates 31 and the steel bars form PBL shear keys to anchor the insertion slot 11 and the insertion plate 21 on the first prefabricated segment 1 and the second prefabricated segment 2, thereby improving the connection strength of the insertion slot 11 and the insertion plate 21 on the first prefabricated segment 1 and the second prefabricated segment 2.

[0031] A plurality of prestressed steel beam holes 4 are also arranged on the cross sections of the first prefabricated segment 1 and the second prefabricated segment 2, the prestressed steel beam holes 4 and the insertion slots 11 and the insertion plates 21 form a ring arrangement on the cross sections of the first prefabricated segment 1 and the second prefabricated segment 2, and steel beams are arranged in the prestressed steel beam holes 4. When the construction and installation between the first prefabricated segment 1 and the second prefabricated segment 2 are carried out, the steel beams on the second prefabricated segment 2 need to be inserted into the prestressed steel beam holes 4 on the first prefabricated segment 1, thereby improving the connection strength between the first prefabricated segment 1 and the second prefabricated segment 2.

[0032] It should be further pointed out that in the embodiment, the cross sections of the first prefabricated segment 1 and the second prefabricated segment 2 are both rectangular structures, as shown in Figure 6 and Figure 7 , the scheme is also applicable to the case where the prefabricated segments are circular, waist-shaped or other cross sections; therefore, the number of the positioning and connecting devices of the prefabricated segment assembled bridge pier of the scheme can be adjusted according to the strength requirements of the joint cross section under the action of the transverse load during construction; the distribution mode can change with the change of the pier body cross section shape, and the positioning and connecting devices (insertion slot, insertion plate structure, etc.) used are all the same and do not need to be adjusted according to the cross section, which is suitable for standardized production.

[0033] Embodiment 2: A positioning and connecting structure of an assembled bridge pier, as shown in Figures 1 to 7 , comprising a first prefabricated segment 1 and a second prefabricated segment 2, the first prefabricated segment 1 and the second prefabricated segment 2 can be prefabricated in a factory, the first prefabricated segment 1 and the second prefabricated segment 2 can form an insertion and cooperation, and form a stable connection relationship, which is convenient for simplifying the construction process on site and shortening the construction period. Specifically, the first prefabricated segment 1 is a lower structure, and the second prefabricated segment 2 is an upper structure, that is, the second prefabricated segment 2 is connected with the first prefabricated segment 1 from top to bottom, an insertion slot 11 is arranged at the cross section of the first prefabricated segment 1, and an insertion plate 21 is arranged at the cross section of the second prefabricated segment 2. In order to ensure the connection strength of the first prefabricated segment 1 and the second prefabricated segment 2, the number of the insertion slots 11 and the insertion plates 21 is set to be multiple, in the embodiment, the number of the insertion slots 11 and the insertion plates 21 is set to twelve groups, as shown in Figure 2 , the cross section of the first prefabricated segment 1 is a rectangular cross section, and the cross section of the insertion slot 11 is also a rectangular cross section; two groups of insertion slots 11 are arranged at four corner positions of the cross section of the first prefabricated segment 1 respectively, the two groups of insertion slots 11 at each corner position are perpendicular to each other, and one group of insertion slots 11 is arranged on both sides of the two length directions of the cross section of the first prefabricated segment 1 respectively; and the insertion plates 21 are arranged on the cross section of the second prefabricated segment 2 corresponding to the positions of the insertion slots 11 on the first prefabricated segment 1, the first prefabricated segment 1 and the second prefabricated segment 2 are connected through the insertion slots 11 and the insertion plates 21. Of course, the actual arrangement mode can be considered according to the specific construction demand and connection strength and other factors.

[0034] In order to prevent the first prefabricated segment 1 and the second prefabricated segment 2 from being simply nested, resulting in easy axial loosening, a clamping groove 12 perpendicular to the slot depth of the slot 11 is arranged in the slot 11, and the clamping groove 12 is arranged on the inner wall of the slot 11. In order to ensure the stability of the connection, the clamping groove 12 is arranged on the two symmetrical inner walls of the slot 11. Since the clamping groove 12 is located inside the slot 11, the machining of the clamping groove 12 is not convenient, and the plate 13 with holes is arranged inside the slot 11, as shown in Figure 5 The plate 13 is fixedly nested in the slot 11, and two groups of perforations 131 are arranged on the plate 13. The plate 12 is tightly attached to the slot 11, and the perforations 131 and the inner wall of the slot 11 form a clamping groove 12 structure, thereby reducing the machining difficulty of the clamping groove 12. The sliding groove 211 is arranged on the plate 21, and the sliding groove 211 is perpendicular to the surface of the plate 21. The first elastic member 213 is arranged in the sliding groove 211, and the first elastic member 213 is a round spring structure. One end of the first elastic member 213 is fixedly connected with the groove bottom of the sliding groove 211, and the other end of the first elastic member 213 is connected with the clamping block 212. Under the action of the first elastic member 213, the clamping block 212 partially protrudes from the sliding groove 211, that is, a part of the clamping block 212 is located in the sliding groove 211, and a part of the clamping block 212 is located outside the slot of the sliding groove 211. Since the clamping grooves 12 in the slot 11 are symmetrically distributed on the inner wall of the slot 11, the sliding grooves 211 are also symmetrically distributed on the plate 21, that is, the sliding grooves 211 are arranged on the upper and lower surfaces of the plate 21, as shown in Figure 4 The upper and lower surfaces of the plate 21 are respectively arranged with two sliding grooves 211, which are adapted to the position and number of the clamping grooves 12.

[0035] It should be noted that the sliding grooves 211 on the upper and lower surfaces of the plate 21 can be coaxially arranged or non-coaxially arranged. In the embodiment, the sliding grooves 211 are coaxially arranged, but the two sliding grooves 211 are not communicated with each other, so as to prevent the first elastic member 213 from losing the supporting point and being unable to elastically act on the clamping block 212.

[0036] In construction, first, epoxy resin is applied on the section of the lower first prefabricated segment 1, and then the upper second prefabricated segment 2 is hoisted above the first prefabricated segment 1, the insertion plate 21 on the second prefabricated segment 2 is aligned with the insertion slot 11 on the first prefabricated segment 1, when the insertion plate 21 is inserted into the insertion slot 11, the clamping block 212 needs to be pressed, so that the clamping block 212 is completely embedded into the sliding groove 211, when the position of the sliding groove 211 on the insertion plate 21 starts to enter into the insertion slot 11, the clamping block 212 can be stopped by the inner wall of the insertion slot 11, with the insertion plate 21 continuing to be inserted into the insertion slot 11, finally the position of the sliding groove 211 on the insertion plate 21 will be aligned with the clamping slot 12 in the insertion slot 11, and the clamping block 212 also loses the limit of the inner wall of the insertion slot 11, under the action of the first elastic member 213, the clamping block 212 will be partially pushed into the clamping slot 12, that is, there are clamping blocks 212 in both the clamping slot 12 and the sliding groove 211, thereby forming axial limit between the first prefabricated segment 1 and the second prefabricated segment 2, improving the connection strength between the first prefabricated segment 1 and the second prefabricated segment 2, preventing the axial loosening of the two; realizing the quick connection of the first prefabricated segment 1 and the second prefabricated segment 2, achieving the purpose of simplifying the on-site construction process, ensuring the integrity of the structure, and shortening the construction period.

[0037] In the embodiment, in order to reduce the pressing operation of the clamping block 212 before the insertion slot 11 and the insertion plate 21 are inserted, the root of the insertion plate 21 is stepped, (such as Figure 4The shown) and is provided with a receiving groove 214 at the bottom of the step and corresponding to the position of the sliding groove 211, the groove depth direction of the receiving groove 214 is perpendicular to the groove depth direction of the sliding groove 211, a second elastic member 216 is arranged in the receiving groove 214, the second elastic member 216 is a spring structure, one end of the second elastic member 216 is fixed at the groove bottom position of the receiving groove 214, the other end of the second elastic member 216 is connected with a baffle 215, the baffle 215 can slide in the receiving groove 214, under normal circumstances, the baffle 215 is also partially stretched out of the receiving groove 214 under the action of the second elastic member 216, that is, a part of the baffle 215 is located in the receiving groove 214, and another part is located outside the slot of the receiving groove 214 and on the slot surface of the sliding groove 211, which shields the sliding groove 211, so that the baffle 215 can press the clamping block 212 in the sliding groove 211; avoid manual or other tool pressing operation. When the slot 11 cooperates with the plug plate 21, the plug plate 21 begins to enter the slot 11, then the slot 11 slot end face will touch the baffle 215, with the plug plate 21 continuing to enter the slot 11, the slot 11 slot end face will tightly enter the baffle 215 into the receiving groove 214, when the plug plate 21 is completely inserted into the slot 11, the baffle 215 is completely tightly entered into the receiving groove 214, and the sliding groove 211 on the plug plate 21 and the clamping groove 12 in the slot 11 are aligned, the clamping block 212 in the sliding groove 211 loses the limit of the baffle 215, under the action of the first elastic member 213, the clamping block 212 is bounced into the clamping groove 12, so that the first prefabricated segment 1 and the second prefabricated segment 2 form a cooperative connection. In this embodiment, the installation of the first prefabricated segment 1 and the second prefabricated segment 2 is more convenient, and the construction period can be further shortened.

[0038] It should be noted that in the present scheme, the end of the clamping block 212 away from the first spring 213 is a circular truncated cone structure, which facilitates the cooperation between the clamping block 212 and the clamping groove 12, and protects the movement of the clamping block 212 to be more smooth, and the clamping block 212 will not be stuck in the slot of the clamping groove 12 due to manufacturing error.

[0039] In the first precast segment 1 and the slot 11, between the second precast segment 2 and the plug plate 21, also provided with connecting components 3, the connecting components 3 include two groups of parallel arranged steel plates 31; the steel plates 31 are arranged in parallel at the back of the plug plate 21 and the back of the slot 11, for the connection of the slot 11, the plug plate 21 with the first precast segment 1 and the second precast segment 2 respectively. A plurality of groups of through holes 311 are arranged on the steel plates 31, and steel bars (not shown in the figure) need to be arranged in the through holes 311, the steel bars pass through the aligned through holes 311 on the two steel plates 31, and the steel plates 31 and the steel bars form PBL shear keys to anchor the slot 11 and the plug plate 21 on the first precast segment 1 and the second precast segment 2 respectively, and improve the connection strength of the slot 11 and the plug plate 21 on the first precast segment 1 and the second precast segment 2.

[0040] A plurality of prestressed steel beam holes 4 are also arranged on the cross sections of the first precast segment 1 and the second precast segment 2, the prestressed steel beam holes 4 are arranged in a ring shape with the slot 11 and the plug plate 21 on the cross section of the first precast segment 1 and the cross section of the second precast segment 2, and steel bars are arranged in the prestressed steel beam holes 4. When the construction and installation between the first precast segment 1 and the second precast segment 2 are carried out, the steel bars on the second precast segment 2 need to be passed into the prestressed steel beam holes 4 on the first precast segment 1, to improve the connection strength between the first precast segment 1 and the second precast segment 2.

[0041] It should be further pointed out that in the embodiment, the cross sections of the first precast segment 1 and the second precast segment 2 are both rectangular structures, as shown in Figure 6 and Figure 7 The scheme is also applicable to the case where the precast segments are circular, waist-shaped or other cross sections; therefore, the number of the positioning and connecting devices of the precast segment assembled bridge pier of the scheme can be adjusted according to the strength requirements of the joint section under the action of the transverse load during construction; the distribution mode can change with the change of the pier body cross section shape, and the positioning and connecting devices (slot, plug plate structure, etc.) used are all the same and do not need to be adjusted according to the cross section, which is suitable for standardized production.

Claims

1. A positioning and connection structure for assembled bridge piers, characterized in that, include The first prefabricated segment has several slots on its end face, and the inner wall of the slots has a groove. The second prefabricated segment has several insert plates on its end face. Each insert plate has a sliding groove corresponding to the slot, and a locking block is elastically slidably connected in the sliding groove. The first prefabricated segment and the second prefabricated segment are connected by the slot and the insert plate.

2. The positioning and connection structure for assembled bridge piers according to claim 1, characterized in that, The card slots are provided in two sets and are symmetrically arranged in the slots; the insert plate has card blocks that are compatible with the slots on both sides.

3. The positioning and connection structure for assembled bridge piers according to claim 2, characterized in that, The slide groove is provided with a first elastic element, one end of which is fixedly connected to the bottom of the slide groove, and the other end of which is fixedly connected to the locking block; the locking block extends out of the slide groove through the first elastic element.

4. The positioning and connection structure for assembled bridge piers according to claim 1, characterized in that, Both the slot and the insert plate are provided with connecting components, and the slot and the insert plate are respectively anchored to the first prefabricated segment and the second prefabricated segment through the connecting components.

5. The positioning and connection structure for assembled bridge piers according to claim 4, characterized in that, The connecting assembly includes a steel plate with several through holes, and reinforcing bars are placed in the through holes to form shear keys.

6. A positioning and connection structure for assembled bridge piers according to any one of claims 1 to 5, characterized in that, The end of the card block is a frustum.

7. A positioning and connection structure for assembled bridge piers according to any one of claims 1 to 5, characterized in that, The first precast segment and the second precast segment are also provided with a number of prestressed steel strand holes.

8. A positioning and connection structure for assembled bridge piers according to any one of claims 1 to 5, characterized in that, The insert plate is provided with a storage groove corresponding to the opening of the sliding groove, and a baffle is elastically slidably connected inside the storage groove.

9. The positioning and connection structure for assembled bridge piers according to claim 8, characterized in that, The storage slot is provided with a second elastic element. One end of the second elastic element is fixedly connected to the bottom of the storage slot, and the other end of the second elastic element is fixedly connected to the baffle. The baffle extends out of the storage slot through the second elastic element.

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