阅读说明：本技术 法兰连接预制拼装桥墩结构及其施工方法 (Flange connection prefabricated assembly pier structure and construction method thereof ) 是由 王经琰 江辉 杨亮 方浩源 李辰 黄磊 于 2019-10-29 设计创作，主要内容包括：本发明提供了一种法兰连接预制拼装桥墩结构及其施工方法。该结构包括承台(1)、预制节段(2)、预制盖梁(3)、预应力筋(4)及法兰构件。4个预制节段(2)的两端面对齐,依次垂直叠放在承台(1)上,预制盖梁(3)设置在预制节段(2)上,承台(1)、预制节段(2)、预制盖梁(3)通过预应力筋(4)连接形成整体,预应力筋的非张拉锚固端(5)预埋在承台(1)内,预应力筋的张拉锚固端(6)设置在预制盖梁(3)顶部,承台(1)与底部预制节(2)段之间、各预制节段(2)之间、顶部预制节段(2)与预制盖梁(3)之间通过法兰构件进行连接,法兰构件包括节段预埋法兰(7)、承台/盖梁预埋法兰(8)与外置法兰(9)。本发明利用软钢耗能能力强、弹簧自复位性能稳定等优点,可以有效地提高桥墩的被动耗能能力与自复位能力。(The invention provides a flange connection prefabricated assembly pier structure and a construction method thereof. The structure comprises a bearing platform (1), prefabricated sections (2), prefabricated cover beams (3), prestressed tendons (4) and flange components. The two end faces of 4 prefabricated sections (2) are aligned, the prefabricated sections (2) are vertically stacked on a bearing platform (1) in sequence, a prefabricated cover beam (3) is arranged on the prefabricated sections (2), the bearing platform (1), the prefabricated sections (2) and the prefabricated cover beam (3) are connected through a prestressed tendon (4) to form a whole, a non-stretching anchoring end (5) of the prestressed tendon is embedded in the bearing platform (1), a stretching anchoring end (6) of the prestressed tendon is arranged at the top of the prefabricated cover beam (3), the bearing platform (1) and a bottom prefabricated section (2) are connected with each other, the top prefabricated sections (2) and the prefabricated cover beam (3) are connected with each other through flange components, and the flange components comprise section embedded flanges (7), bearing platform/cover beam embedded flanges (8) and external flanges (9). The pier passive energy dissipation device can effectively improve the passive energy dissipation capability and the self-resetting capability of the pier by utilizing the advantages of strong energy dissipation capability of mild steel, stable self-resetting performance of the spring and the like.)

1. The utility model provides a pier structure is assembled in flange joint prefabrication which characterized in that includes: the prestressed reinforcement tensioning and anchoring device comprises a bearing platform (1), a prefabricated section (2), a prefabricated bent cap (3), a prestressed tendon (4), a prestressed tendon non-tensioning and anchoring end (5), a prestressed tendon tensioning and anchoring end (6), a section embedded flange (7), a bearing platform/bent cap embedded flange (8) and an external flange (9);

the both ends face of 4 prefabricated sections (2) aligns to stack perpendicularly in proper order on cushion cap (1), prefabricated bent cap (3) set up on prefabricated section (2), cushion cap (1), prefabricated section (2), prefabricated bent cap (3) are connected through prestressing tendons (4) and are formed wholly, and prestressing tendons's non-stretch-draw anchor end (5) are pre-buried in cushion cap (1), and prestressing tendons's anchor end (6) set up at prefabricated bent cap (3) top, between cushion cap (1) and bottom prefabricated section (2) section, between each prefabricated section (2), all be connected through the flange component between top prefabricated section (2) and the prefabricated bent cap (3), the flange component includes section pre-buried flange (7), cushion cap/bent cap pre-buried flange (8) and external flange (9).

2. A structure according to claim 1, characterized in that the tendons (4) are unbonded prestressed strands, centrally located in the cross-section of the precast segments (2).

3. The structure according to claim 1 or 2, characterized in that the bearing platform (1) is a reinforced concrete structure with a rectangular or square cross section, a bearing platform embedded flange (8) is arranged at the top of the bearing platform (1), the bearing platform embedded flange (8) is composed of an embedded steel pipe (15) and a first annular steel plate (16) welded on the outer wall of the steel pipe, the bottom surface of the first annular steel plate (16) of the bearing platform embedded flange (8) is flush with the top surface of the bearing platform (1), one part of the embedded steel pipe (15) is embedded into the bearing platform (1), the other part of the embedded steel pipe extends out of the bearing platform (1), and after the concrete is poured, the part extending out of the bearing platform (1) forms local steel pipe constraint concrete; a reserved hole channel of a prestressed tendon (4) is arranged in the center of the bearing platform (1), and a non-stretching anchoring end (5) of the prestressed tendon is embedded in the bearing platform (1); the 6 embedded bolts (12) are uniformly distributed on the first annular steel plate (16) along the circumferential direction, threaded rod parts of the embedded bolts (12) are exposed, the rest parts of the embedded bolts are embedded in the bearing platform (1), and the center line of the bearing platform embedded flange (8) is perpendicular to the top surface of the bearing platform (1).

4. The structure of claim 3, characterized in that a bearing platform embedded flange (8) is arranged at the top of the bearing platform (1), the bearing platform embedded flange (8) is composed of an embedded steel pipe (15) and a first annular steel plate (16) welded on the outer wall of the steel pipe, the bottom surface of the first annular steel plate (16) of the bearing platform embedded flange (8) is flush with the top surface of the bearing platform (1), and the central line of the bearing platform embedded flange (8) is perpendicular to the top surface of the bearing platform (1).

5. The structure according to claim 1, characterized in that the prefabricated segment (2) is a reinforced concrete structure with a circular or rectangular cross section, the prestressed tendon (4) passes through the center of the prefabricated segment (2), the bottom surface of the flange embedded steel pipe (15) is flush with the bottom surface of the prefabricated segment (2), and the outer diameter of the flange embedded steel pipe (15) is equal to the diameter of the prefabricated segment (2); the top surface of the flange pre-buried steel pipe (15) is flush with the top surface of the prefabricated section (2), and the outer diameter of the flange pre-buried steel pipe (15) is equal to the diameter of the prefabricated section (2).

6. The structure of claim 5, characterized in that the segment embedded flanges (7) are arranged at two ends of the prefabricated segment (2), each segment embedded flange (7) is composed of a flange embedded steel pipe (15), a first annular steel plate (16) welded on the outer wall of the steel pipe, and 6 triangular stiffening ribs (17) vertically welded with the outer wall of the steel pipe and the first annular steel plate, 6 reserved bolt holes (18) are uniformly distributed on the first annular steel plate (16), the reserved bolt holes (18) and the stiffening ribs (17) are distributed at intervals, and the central line of each segment embedded flange (7) is perpendicular to the end face of the prefabricated segment (2).

7. A structure according to claim 1, characterized in that the precast capping beam (3) is a reinforced concrete structure with a rectangular or square cross section, a pre-opened channel of the tendon (4) is arranged in the center of the precast capping beam (3), and the tendon tension anchor end (6) is arranged on the top of the precast capping beam (3).

8. The structure according to claim 7, characterized in that a bent cap embedded flange (8) is arranged at the bottom of the precast bent cap (3), the bent cap embedded flange (8) is composed of an embedded steel pipe (15) and a first annular steel plate (16) welded on the outer wall of the steel pipe, the top surface of the first annular steel plate (16) of the bent cap embedded flange (8) is flush with the bottom surface of the precast bent cap (3), one part of the embedded steel pipe (15) is embedded in the precast bent cap (3), the other part of the embedded steel pipe extends out of the bent cap (3), and the part of the embedded steel pipe extending out of the bent cap (3) forms local steel pipe constraint concrete after concrete is poured; the 6 embedded bolts (12) are uniformly distributed on the first annular steel plate (16) along the circumferential direction, threaded rod parts of the embedded bolts (12) are exposed, and the rest parts are embedded in the precast capping beam (3); the center line of the bent cap embedded flange (8) is vertical to the top surface of the bearing platform (1).

9. The structure according to any one of claims 1 to 8, characterized in that the first design of the outboard flange (9) consists of an outboard steel pipe (19), a second annular steel plate (25) welded on the outer walls of the two ends of the steel pipe, a soft steel sheet (10), an inboard spring (20) and a reserved bolt hole (18); 12 reserved bolt holes (18) are uniformly distributed on the 2 second annular steel plates (25), and the circle center connecting line of the reserved bolt holes (18) corresponding to the upper end and the lower end is vertical to the second annular steel plates (25); the built-in springs (20) are extrusion springs, the built-in springs (20) and second annular steel plates (25) at the upper end and the lower end are welded into a whole, 6 springs are uniformly distributed in the external flange (9), and the built-in springs (20) and the reserved bolt holes (18) are distributed at intervals; the soft steel sheets (10) are X-shaped soft steel sheets, the soft steel sheets (10) are welded with second annular steel plates (25) at the upper end and the lower end into a whole, 1 soft steel sheet (10) is distributed between the reserved bolt holes (18) and the built-in springs (20), the total number of the soft steel sheets is 12, and the sealing steel plates (21) are welded with flange components at the joints into a whole.

10. The structure according to any one of claims 1 to 8, characterized in that the second design of the outboard flange (9) consists of an "Contraband" steel sleeve plate, a soft steel sheet (10), an inboard spring (20) and a reserved bolt hole (18); 4 reserved bolt holes (18) are distributed in the upper end steel plate and the lower end steel plate of the external flange (9); the built-in spring (20) is an extrusion spring, the upper end and the lower end of the built-in spring (20) are welded with the steel sleeve plate into a whole, and the built-in spring (20) is distributed between the adjacent reserved bolt holes (18); the soft steel sheets (10) are X-shaped soft steel sheets, the soft steel sheets (10) are welded with the steel plates at the upper end and the lower end into a whole, 1 soft steel sheet (10) is distributed between the reserved bolt holes (18) and the built-in springs (20), 2 soft steel sheets are distributed in total, and the sealing steel plates (21) are welded with flange components at the joints into a whole.

11. A construction method of a flange-joined precast pier construction according to any one of claims 1 to 7, comprising the steps of:

step 1: finishing the prefabrication work of the bearing platform (1), the prefabricated sections (2) and the prefabricated capping beam (3); binding a reinforcement cage, placing an embedded flange, an embedded bolt and a prestressed tendon reserved pipeline on each component, and pouring concrete after positioning; when the bearing platform (1) is prefabricated, the prestressed tendon non-tensioning anchoring end (5) and the prestressed tendon (4) are embedded together; a groove of a prestressed tendon tensioning and anchoring end (6) is reserved at the top when the capping beam (3) is prefabricated;

step 2: assembling the bearing platform (1) and the prefabricated sections at the bottom, hoisting the external flanges (9) to the positions above the corresponding embedded bolts (12), enabling the exposed threaded rods to correspond to the reserved bolt holes (18) on the lower sides of the external flanges (9) one by one, and then butting and installing; hoisting the prefabricated sections (2) to the positions above the corresponding external flanges (9), enabling the reserved bolt holes (18) of the section embedded flanges (7) to correspond to the reserved bolt holes (18) on the upper sides of the external flanges (9) one by one, and then butting the mounting bolts;

and step 3: assembling the prefabricated sections, hoisting the external flange (9) to the upper part of the upper section, corresponding the reserved bolt holes (18) on the section embedded flange (7) to the bolt reserved holes (18) on the lower side of the external flange (9) one by one, and then installing the prefabricated sections in a butt joint mode; hoisting the next section to the position above the external flange, wherein the reserved bolt holes (18) of the section embedded flange (7) correspond to the bolt reserved holes (18) on the upper side of the external flange (9) one by one, and then butting the mounting bolts;

and 4, step 4: assembling the top prefabricated sections and the prefabricated bent caps (3), hoisting the external flanges (9) to the upper part of the upper section, corresponding the reserved bolt holes (18) on the section embedded flanges (7) to the bolt reserved holes (18) on the lower sides of the external flanges (9) one by one, and then butting and installing; hoisting the prefabricated capping beam (3) to the position above the corresponding external flange (9), enabling the exposed threaded rod of the prefabricated capping beam to correspond to the reserved bolt holes (18) on the upper side of the external flange (9) one by one, and then butting the mounting bolts;

and 5: after all the components are installed, tensioning the unbonded prestressed tendons (4) at the pier tops through jacks, and pouring and filling the grooves at the tops of the prefabricated capping beams by using cement mortar after tensioning is finished;

step 6: after the assembly of the pier is completed, the flanges and the bolt members are coated with antirust paint, rust-proof treatment is carried out, and then the sealing steel plate (21) and the flange members at the joint are welded into a whole.

Technical Field

The invention relates to the technical field of bridge construction, in particular to a flange connection prefabricated assembled pier structure and a construction method thereof.

Background

The prefabricated assembled pier refers to a prestressed reinforced concrete pier which is prefabricated in sections in a factory and assembled into a whole through an intersegment connecting structure in a construction site. The traditional cast-in-place reinforced concrete bridge inevitably has the problems of long construction period, difficult guarantee of concrete quality, interference to existing urban traffic and the like. The prefabrication and assembly technology can effectively solve the problems of the traditional cast-in-place concrete bridge by means of simple and quick construction operation and high-quality construction guarantee. In addition, the country has come out a series of new policies related to the prefabricated assembled structure, and the application of the prefabricated assembled technology to bridge construction is promoted. The prefabrication and assembly technology of the bridge superstructure is mature day by day, and the lower structure of the prefabricated and assembled bridge is not easy to popularize and use in high-intensity earthquake regions due to low energy consumption capability. Therefore, the research is suitable for the bridge substructure prefabrication and assembly technology of the high-intensity seismic area, and has important scientific significance and practical application value.

Aiming at the problems that the prefabricated assembled bridge pier is poor in energy consumption capability, large in lateral displacement of the bridge pier and the like under the action of an earthquake due to the fact that joints of the prefabricated assembled bridge pier are discontinuous, the arrangement of rubber shock-absorbing pads and pre-embedded energy-consuming reinforcing steel bars among concrete segments is an effective measure for improving the energy consumption capability of the bridge pier.

Disclosure of Invention

The embodiment of the invention provides a flange connection prefabricated assembled pier structure and a construction method thereof, and aims to overcome the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme.

According to an aspect of the present invention, there is provided a flange-connected prefabricated pier construction, including: the prestressed reinforcement tensioning and anchoring device comprises a bearing platform (1), a prefabricated section (2), a prefabricated bent cap (3), a prestressed tendon (4), a prestressed tendon non-tensioning and anchoring end (5), a prestressed tendon tensioning and anchoring end (6), a section embedded flange (7), a bearing platform/bent cap embedded flange (8) and an external flange (9);

the both ends face of 4 prefabricated sections (2) aligns to stack perpendicularly in proper order on cushion cap (1), prefabricated bent cap (3) set up on prefabricated section (2), cushion cap (1), prefabricated section (2), prefabricated bent cap (3) are connected through prestressing tendons (4) and are formed wholly, and prestressing tendons's non-stretch-draw anchor end (5) are pre-buried in cushion cap (1), and prestressing tendons's anchor end (6) set up at prefabricated bent cap (3) top, between cushion cap (1) and bottom prefabricated section (2) section, between each prefabricated section (2), all be connected through the flange component between top prefabricated section (2) and the prefabricated bent cap (3), the flange component includes section pre-buried flange (7), cushion cap/bent cap pre-buried flange (8) and external flange (9).

Preferably, the prestressed tendons (4) are unbonded prestressed steel strands and are positioned in the center of the cross section of the prefabricated segment (2).

Preferably, the bearing platform (1) is of a rectangular or square section reinforced concrete structure, a bearing platform embedded flange (8) is arranged at the top of the bearing platform (1), the bearing platform embedded flange (8) is composed of an embedded steel pipe (15) and a first annular steel plate (16) welded on the outer wall of the steel pipe, the bottom surface of the first annular steel plate (16) of the bearing platform embedded flange (8) is flush with the top surface of the bearing platform (1), one part of the embedded steel pipe (15) is embedded into the bearing platform (1), the other part of the embedded steel pipe extends out of the bearing platform (1), and the part of the embedded steel pipe extending out of the bearing platform (1) forms local steel pipe constraint concrete after the concrete is poured; a reserved hole channel of a prestressed tendon (4) is arranged in the center of the bearing platform (1), and a non-stretching anchoring end (5) of the prestressed tendon is embedded in the bearing platform (1); the 6 embedded bolts (12) are uniformly distributed on the first annular steel plate (16) along the circumferential direction, threaded rod parts of the embedded bolts (12) are exposed, the rest parts of the embedded bolts are embedded in the bearing platform (1), and the center line of the bearing platform embedded flange (8) is perpendicular to the top surface of the bearing platform (1).

Preferably, a bearing platform embedded flange (8) is arranged at the top of the bearing platform (1), the bearing platform embedded flange (8) is composed of an embedded steel pipe (15) and a first annular steel plate (16) welded on the outer wall of the steel pipe, the bottom surface of the first annular steel plate (16) of the bearing platform embedded flange (8) is flush with the top surface of the bearing platform (1), and the central line of the bearing platform embedded flange (8) is perpendicular to the top surface of the bearing platform (1).

Preferably, the prefabricated segment (2) is of a reinforced concrete structure with a circular or rectangular cross section, the prestressed tendons (4) penetrate through the center of the prefabricated segment (2), the bottom surface of the flange embedded steel pipe (15) is flush with the bottom surface of the prefabricated segment (2), and the outer diameter of the flange embedded steel pipe (15) is equal to the diameter of the prefabricated segment (2); the top surface of the flange pre-buried steel pipe (15) is flush with the top surface of the prefabricated section (2), and the outer diameter of the flange pre-buried steel pipe (15) is equal to the diameter of the prefabricated section (2).

Preferably, the both ends of prefabricated segment (2) set up segment embedded flange (7), segment embedded flange (7) are by flange embedded steel pipe (15), first annular steel sheet (16) of welding on the steel pipe outer wall, 6 with steel pipe outer wall and the perpendicular welded triangle-shaped stiffening rib (17) of first annular steel sheet constitute, 6 reserve bolt hole (18) evenly distributed on first annular steel sheet (16), reserve bolt hole (18) and stiffening rib (17) alternate distribution, the central line of segment embedded flange (7) is perpendicular with prefabricated segment (2) terminal surface.

Preferably, the precast capping beam (3) is of a reinforced concrete structure with a rectangular or square section, a reserved hole channel of the prestressed tendon (4) is arranged in the center of the precast capping beam (3), and the prestressed tendon tensioning and anchoring end (6) is arranged at the top of the precast capping beam (3).

Preferably, the bottom of the precast bent cap (3) is provided with a bent cap embedded flange (8), the bent cap embedded flange (8) is composed of an embedded steel pipe (15) and a first annular steel plate (16) welded on the outer wall of the steel pipe, the top surface of the first annular steel plate (16) of the bent cap embedded flange (8) is flush with the bottom surface of the precast bent cap (3), one part of the embedded steel pipe (15) is embedded into the precast bent cap (3), the other part of the embedded steel pipe extends out of the bent cap (3), and the part of the embedded steel pipe extending out of the bent cap (3) forms local steel pipe constraint concrete after the concrete is poured; the 6 embedded bolts (12) are uniformly distributed on the first annular steel plate (16) along the circumferential direction, threaded rod parts of the embedded bolts (12) are exposed, and the rest parts are embedded in the precast capping beam (3); the center line of the bent cap embedded flange (8) is vertical to the top surface of the bearing platform (1).

Preferably, the first design scheme of the external flange (9) consists of an external steel pipe (19), a second annular steel plate (25) welded on the outer walls of two ends of the steel pipe, a soft steel sheet (10), an internal spring (20) and a reserved bolt hole (18); 12 reserved bolt holes (18) are uniformly distributed on the 2 second annular steel plates (25), and the circle center connecting line of the reserved bolt holes (18) corresponding to the upper end and the lower end is vertical to the second annular steel plates (25); the built-in springs (20) are extrusion springs, the built-in springs (20) and second annular steel plates (25) at the upper end and the lower end are welded into a whole, 6 springs are uniformly distributed in the external flange (9), and the built-in springs (20) and the reserved bolt holes (18) are distributed at intervals; the soft steel sheets (10) are X-shaped soft steel sheets, the soft steel sheets (10) are welded with second annular steel plates (25) at the upper end and the lower end into a whole, 1 soft steel sheet (10) is distributed between the reserved bolt holes (18) and the built-in springs (20), the total number of the soft steel sheets is 12, and the sealing steel plates (21) are welded with flange components at the joints into a whole.

Preferably, the second design scheme of the external flange (9) consists of an Contraband-shaped steel sleeve plate, a soft steel sheet (10), an internal spring (20) and a reserved bolt hole (18); 4 reserved bolt holes (18) are distributed in the upper end steel plate and the lower end steel plate of the external flange (9); the built-in spring (20) is an extrusion spring, the upper end and the lower end of the built-in spring (20) are welded with the steel sleeve plate into a whole, and the built-in spring (20) is distributed between the adjacent reserved bolt holes (18); the soft steel sheets (10) are X-shaped soft steel sheets, the soft steel sheets (10) are welded with the steel plates at the upper end and the lower end into a whole, 1 soft steel sheet (10) is distributed between the reserved bolt holes (18) and the built-in springs (20), 2 soft steel sheets are distributed in total, and the sealing steel plates (21) are welded with flange components at the joints into a whole.

According to one aspect of the invention, the construction method of the flange connection prefabricated assembly pier structure is provided, and comprises the following steps:

step 1: finishing the prefabrication work of the bearing platform (1), the prefabricated sections (2) and the prefabricated capping beam (3); binding a reinforcement cage, placing an embedded flange, an embedded bolt and a prestressed tendon reserved pipeline on each component, and pouring concrete after positioning; when the bearing platform (1) is prefabricated, the prestressed tendon non-tensioning anchoring end (5) and the prestressed tendon (4) are embedded together; a groove of a prestressed tendon tensioning and anchoring end (6) is reserved at the top when the capping beam (3) is prefabricated;

step 2: assembling the bearing platform (1) and the prefabricated sections at the bottom, hoisting the external flanges (9) to the positions above the corresponding embedded bolts (12), enabling the exposed threaded rods to correspond to the reserved bolt holes (18) on the lower sides of the external flanges (9) one by one, and then butting and installing; hoisting the prefabricated sections (2) to the positions above the corresponding external flanges (9), enabling the reserved bolt holes (18) of the section embedded flanges (7) to correspond to the reserved bolt holes (18) on the upper sides of the external flanges (9) one by one, and then butting the mounting bolts;

and step 3: assembling the prefabricated sections, hoisting the external flange (9) to the upper part of the upper section, corresponding the reserved bolt holes (18) on the section embedded flange (7) to the bolt reserved holes (18) on the lower side of the external flange (9) one by one, and then installing the prefabricated sections in a butt joint mode; hoisting the next section to the position above the external flange, wherein the reserved bolt holes (18) of the section embedded flange (7) correspond to the bolt reserved holes (18) on the upper side of the external flange (9) one by one, and then butting the mounting bolts;

and 4, step 4: assembling the top prefabricated sections and the prefabricated bent caps (3), hoisting the external flanges (9) to the upper part of the upper section, corresponding the reserved bolt holes (18) on the section embedded flanges (7) to the bolt reserved holes (18) on the lower sides of the external flanges (9) one by one, and then butting and installing; hoisting the prefabricated capping beam (3) to the position above the corresponding external flange (9), enabling the exposed threaded rod of the prefabricated capping beam to correspond to the reserved bolt holes (18) on the upper side of the external flange (9) one by one, and then butting the mounting bolts;

and 5: after all the components are installed, tensioning the unbonded prestressed tendons (4) at the pier tops through jacks, and pouring and filling the grooves at the tops of the prefabricated capping beams by using cement mortar after tensioning is finished;

step 6: after the assembly of the pier is completed, the flanges and the bolt members are coated with antirust paint, rust-proof treatment is carried out, and then the sealing steel plate (21) and the flange members at the joint are welded into a whole.

According to the technical scheme provided by the embodiment of the invention, the problems that the rubber shock absorption pads arranged at the joints of the piers lose the shock absorption function due to aging, the self-resetting function of the prefabricated assembled piers is reduced after energy-consuming steel bars are seriously buckled and the like can be effectively solved. The upper and lower sections are tightly connected through the flange component, under the action of an earthquake, the soft steel sheet in the flange component generates yield deformation so as to provide extra energy consumption, and meanwhile, the built-in spring can effectively reset the opening and closing seams among the sections, so that the self-resetting capability of the pier is effectively improved. All flange components adopt an external design, and are easy to repair or replace after being damaged.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of an assembly example of a flange-connected prefabricated assembled pier structure with energy consumption and self-resetting functions according to an embodiment of the invention;

FIG. 2 is a cross-sectional view of an assembly example A-A of the present invention;

FIG. 3 is a cross-sectional view of an assembled embodiment B-B of the present invention;

FIG. 4 is a schematic illustration of adjacent segments of an assembly example of the present invention prior to assembly;

FIG. 5 is a schematic view of assembled adjacent segments of an assembled embodiment of the present invention;

fig. 6 is a rough drawing of a segment embedded flange of the present invention, wherein: (a) is a front elevation view of the segment embedded flange, (b) is a side elevation view of the segment embedded flange, and (c) is a plan view of the segment embedded flange

Fig. 7 is a schematic view of an external flange in a first design of the present invention, in which: (a) the external flange is an upright surface diagram, (b) is a side elevation surface diagram of the external flange, (C) is a plane diagram of the external flange, and (d) is a C-C section diagram;

fig. 8 is a schematic view of an external flange in a second design of the present invention, in which: (a) the drawing is an external flange right elevation drawing, (b) is an external flange side elevation drawing, (c) is an external flange plan drawing, and (D) is a D-D section drawing;

the reference numbers in the figures illustrate:

1-bearing platform, 2-prefabricated segment, 3-prefabricated capping beam, 4-prestressed tendon, 5-prestressed tendon non-tensioning anchoring end, 6-prestressed tendon tensioning anchoring end, 7-segment embedded flange, 8-bearing platform (capping beam) embedded flange, 9-external flange, 10-soft steel sheet, 11-high-strength bolt, 12-embedded bolt, 13-gasket, 14-nut, 15-embedded steel pipe, 16-first annular steel plate, 17-stiffening rib, 18-reserved bolt hole, 19-external steel pipe, 20-internal spring, 21-sealing steel plate, 22- 'Contraband' shaped steel sleeve plate, 23-longitudinal rib, 24-stirrup and 25-second annular steel plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.

In order to overcome the defects in the prior art, the passive energy consumption capability and the self-resetting capability of the pier are improved by utilizing the advantages of strong energy consumption capability of mild steel, stable self-resetting performance of a spring and the like; the high-strength bolts for assembling the components can provide stable shearing resistance and effectively prevent the lateral sliding of the segmental pier. The reserved bolt holes and the embedded bolts on the flanges can play a role in positioning, and the site construction efficiency is accelerated. The whole device is made of traditional building materials, and is convenient to manufacture, maintain and maintain.