Truss type ultrahigh pier structure

Abstract

The utility model discloses a truss type ultrahigh pier structure. The truss type ultrahigh pier structure comprises a base, a pier body and a cover beam which are sequentially connected from bottom to top. The pier body comprises a prefabricated column, a prefabricated slab and a prefabricated beam; the prefabricated combined pier is reasonable in design and simple in structure, the pier body is formed by splicing and combining the prefabricated columns, the prefabricated plates and the prefabricated stringers which are modularized, and the prefabricated columns and the prefabricated plates can be split into a plurality of sections, so that the installation efficiency and the transportation efficiency are effectively improved; the width of the cross section in the bridge direction is reduced from large to small through inward inclination of the prefabricated columns, so that the wind load in the transverse bridge direction is reduced; the wind load in the bridge direction is reduced by adopting a truss structure; in addition, the prestressed thick steel bundles arranged in a bundling mode are adopted, so that the section reinforcement ratio is increased, and the bearing capacity of the structure is improved. The structure is simple in construction, convenient to construct, good in durability, good in economical efficiency, energy-saving and environment-friendly, and has wide popularization and application prospects.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering technical field, more specifically, especially relate to a truss type super high pier structure. BACKGROUND

[0002] With the continuous development of China's transportation infrastructure, the bridge construction has also been put forward higher and higher requirements. Based on the concept of safety durability, energy saving and environmental protection proposed by the state, the standardization, assembly, factory construction of bridge components gradually become the consensus, therefore, the prefabricated assembly technology which is convenient to realize the standardization, assembly, factory construction gets the rapid development, becomes the mainstream development direction of bridge construction. At present, the prefabricated assembly technology of bridge superstructure in China is relatively mature, and the superstructure of small and medium span bridge basically adopts assembly construction. For the substructure, the prefabricated assembly technology is in the exploratory stage, and some conditional city bridges, cross-sea bridges and highway bridges gradually carry out the application and research of prefabricated assembly pier technology. However, in view of the current technology, the prefabricated assembly pier is basically applied to the lower pier, and cannot be applied to the high pier, and it is more difficult for the super high pier, and the cost of prefabricated pier is generally higher than that of cast-in-place construction pier.

[0003] The current technical limitations mainly include: 1) the joint structure is relatively complex or the construction is relatively difficult, therefore, the design generally tries to reduce the joints, the height of the prefabricated segment is generally larger, the weight of the prefabricated segment is larger, and the prefabricated segment is not convenient for transportation and installation, especially for the super-high pier bridge in the mountain area; 2) in order to ensure the reliable stress of the pier body, the dry joint or the cement joint, the grouting sleeve connecting steel bar technology is generally used for the prefabricated pier at present, the technology needs accurate docking of the segments, the segments need to be matched and prefabricated, the construction requirement is relatively high, especially for the verticality control of the super-high pier body, in addition, the large amount of grouting sleeve also increases the engineering cost; 3) in order to overcome the shortcomings of the dry joint or the cement joint technology, some prefabricated piers adopt the cast-in-place wet joint connecting technology, the steel bars are arranged in the wet joint, the stress of the pier body is realized by the adhesion between the cast-in-place joint material (concrete or UHPC) and the steel bar, the stress performance of the joint is relatively poor, the stress of the super-high pier is larger, the number of the joints is larger, the stress reliability of the pier body is reduced by using the joint technology, in addition, the height of the wet joint is generally larger, the material amount is larger, the engineering cost is increased, and the construction period is very long because the next segment construction needs to wait for the wet joint to reach the design strength during the construction process; 4) the prestress technology is less used in the prefabricated pier at present, the main reason is that the prestress construction is relatively complex, especially for the multi-segment prestress steel bar lengthening, the construction process is more complex, the construction period is longer, in addition, compared with the reinforced concrete pier, the ductility of the prestressed concrete pier is reduced, the seismic performance is relatively poor, and it is particularly unfavorable for the high pier; 5) for the super-high pier, with the increase of the height of the pier, the wind load effect is more significant, the seismic problem is more prominent, and the structure safety and reliability are the great problems of the prefabricated structure.

[0004] Therefore, in view of the above problems, how to improve the structure of the pier so that the pier can be more suitable for the high pier assembly construction of the bridge becomes an important technical problem to be solved by the person skilled in the art. Practical new type content

[0005] The utility model provides a kind of truss super-high pier structure to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical scheme: a kind of truss super-high pier structure, including sequentially connected from bottom to top base, pier body and bent cap;The pier body includes prefabricated column, prefabricated plate and prefabricated truss rod;The cross section of the prefabricated column is rectangular structure;Two prefabricated columns on the front and back sides of the bridge direction and two prefabricated plates form a box-shaped combined structure, and two adjacent box-shaped combined structures are connected with the prefabricated truss rod in the transverse direction of the bridge to form a truss structure.

[0006] Preferably, the two prefabricated columns on the front and back sides of the bridge direction are symmetrically and inwardly arranged, and the length of the box-shaped combined structure in the direction of the bridge gradually changes along the height direction, forming a structure of lower width and upper narrowness.

[0007] Preferably, the prefabricated column is composed of a plurality of column segments, adjacent column segments are connected by UHPC wet joints; a through prestressed coarse steel bar embedded pipeline is arranged in the column segment, adjacent prestressed coarse steel bar embedded pipelines are connected by a snap-on sleeve; a prestressed coarse steel bar is arranged in the prefabricated column, the prestressed coarse steel bar passes through the prestressed coarse steel bar embedded pipeline; the end of the prestressed coarse steel bar is connected with a lengthened coarse steel bar, and the prestressed coarse steel bar and the lengthened coarse steel bar are connected by a connector.

[0008] Preferably, a prestressed coarse steel bar bundle pipeline is further arranged in the column segment, a prestressed coarse steel bar bundle is arranged in the prestressed coarse steel bar bundle embedded pipeline, and the prestressed coarse steel bar bundle is composed of a plurality of steel bars; a plurality of vertical vertical bars are vertically arranged in the column segment, and the plurality of vertical vertical bars are connected by a stirrup.

[0009] Preferably, the prefabricated plate is composed of a plurality of plate segments, adjacent plate segments are connected by dry joints and are connected by shear keys; a steel-UHPC combined wet joint is used between the prefabricated column and the prefabricated plate and between the prefabricated column and the prefabricated truss, and the steel-UHPC combined wet joint is composed of an embedded channel steel, an embedded steel sleeve, a connecting angle steel, an embedded connecting steel bar and a cast-in-situ UHPC.

[0010] Preferably, a plurality of longitudinal connecting bars and transverse connecting bars are arranged in the prefabricated plate.

[0011] Preferably, a cast-in-situ concrete wet joint solid section is arranged in the column segment at the top, a pier top connecting steel bar is embedded in the cast-in-situ concrete wet joint solid section; the prestressed coarse steel bar in the column segment at the top and the pier top connecting steel bar extend into the bent cap and are connected with the bent cap.

[0012] Preferably, a steel plate is arranged on the column segment, and the steel plates of adjacent column segments are welded and connected; a unitized assembly formwork is arranged between adjacent column segments, and the unitized assembly formwork is connected with adjacent plate segments.

[0013] Preferably, the prefabricated truss is a prestressed concrete structure, a steel sleeve and a truss connecting steel bar are arranged at the end of the prefabricated truss, and the prefabricated truss is connected with the prefabricated column through the steel sleeve and the truss connecting steel bar.

[0014] Preferably, a cast-in-situ concrete wet joint is arranged between the pier body and the base, and a cast-in-situ wet joint connecting steel bar and a pier bottom coarse steel bar are arranged in the base.

[0015] Compared with the prior art, the utility model discloses the beneficial effect is: the utility model discloses reasonable in design, simple structure, and the pier body is by the modular prefabricated column, prefabricated board and prefabricated truss rod splicing combination, and prefabricated column, prefabricated board can be split into multiple sections, effectively promote the installation efficiency and transportation efficiency, the cross section width of the bridge direction is changed from big to small through the inclination of prefabricated column, thereby reducing the horizontal bridge direction wind load, adopt truss structure to reduce the bridge direction wind load, in addition, still adopted the prestressed coarse steel bar bundle of cluster arrangement, thereby improving the section reinforcement ratio and improving the structure bearing capacity. The structure simple structure, convenient construction, durability is good, economic, energy -concerving and environment -protective, has wide popularization and application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0017] Figure 2 It is the side view of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0018] Figure 3 It is the section view of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0019] Figure 4 It is the section view of column section of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0020] Figure 5 It is the section view of another side of column section of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0021] Figure 6 It is the column section connecting structure schematic drawing of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0022] Figure 7 It is the section view of board section of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0023] Figure 8 It is the section view of another side of board section of lightweight assembly type column board combination truss super high pier structure of the utility model;

[0024] Figure 9 It is the connecting structure section view of column section and board section;

[0025] Figure 10 It is the connecting structure section view of column section and prefabricated truss rod;

[0026] Figure 11 It is another angle section view of the connecting structure of column section and prefabricated truss rod;

[0027] Figure 12 is a sectional view of a connection structure of a prefabricated column and a base;

[0028] Figure 13 is a sectional view of a connection structure of a prefabricated column and a base;

[0029] In each of the drawings, the following signs are shown as follows:

[0030] 1 - base, 11 - cast-in-place wet joint connecting steel bar, 12 - pier bottom coarse steel bar, 13 - fixed end anchorage device, 14 - cast-in-place joint solid section, 2 - pier body, 21 - prefabricated column, 211 - column segment, 212 - UHPC wet joint connection, 213 - prestressed coarse steel bar embedded pipeline, 214 - snap-fit sleeve, 215 - prestressed coarse steel bar, 216 - lengthened coarse steel bar, 217 - connector, 218 - prestressed steel bar bundle pipeline, 219 - prestressed steel bar bundle, 2110 - vertical reinforcement, 2111 - stirrup, 2112 - cast-in-place concrete wet joint solid section, 2113 - pier top connecting steel bar, 22 - prefabricated slab, 221 - slab segment, 222 - shear key, 223 - profile steel-UHPC combined wet joint, 2231 - embedded channel steel, 2232 - embedded steel sleeve, 2233 - connecting angle steel, 2234 - embedded connecting steel bar, 2235 - cast-in-place UHPC, 224 - longitudinal connecting reinforcement, 225 - transverse connecting reinforcement, 23 - prefabricated truss, 231 - steel sleeve, 232 - truss connecting steel bar, 3 - cap beam. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be further described in conjunction with the drawings and examples, the accompanying drawings are for reference only and are not intended to limit the embodiments of the present application. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0032] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "connects", "connects" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connects;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium.

[0034] Please refer to Figures 1 to 13 The utility model provides a kind of truss super high pier structure, including sequentially connected from bottom to top pedestal 1, pier body 2 and bent cap 3;The pier body 2 includes prefabricated column 21, prefabricated plate 22 and prefabricated truss 23;The section of prefabricated column 21 is rectangular structure;Two prefabricated columns 21 on the front and rear sides of bridge direction and two prefabricated plates 22 form a box-shaped combined structure, and two adjacent box-shaped combined structures are connected with prefabricated truss 23 in transverse bridge direction to form truss structure.

[0035] In the embodiment of the utility model, the truss super high pier structure is composed of pedestal 1, pier body 2 and bent cap 3, wherein pier body 2 includes prefabricated column 21, prefabricated plate 22 and prefabricated truss 23, and the number of pier body 2 can be set according to actual demand, and can be one or more.In each pier body 2, it includes four prefabricated columns 21, four prefabricated plates 22 and a plurality of prefabricated trusses 23.Specifically, please refer to Figures 1 to 3 Two prefabricated columns 21 on the front and rear sides of bridge direction and two prefabricated plates 22 form a box-shaped combined structure, and two adjacent box-shaped combined structures are connected with prefabricated truss 23 in transverse bridge direction to form truss structure. Figures 1 to 3 One side of prefabricated column 21 is connected with prefabricated plate 22, and the other side is connected with prefabricated truss 23, and prefabricated truss 23 is inclined, which is connected by staggered joint, to reduce wind load in bridge direction.

[0036] Preferably, two prefabricated columns 21 on the front and rear sides of bridge direction are symmetrical and inwardly inclined, and the length of the box-shaped combined structure in bridge direction gradually changes along the height direction, forming a structure with wide bottom and narrow top.In this embodiment, prefabricated column 21 is inwardly inclined, so that the cross-sectional width in bridge direction changes from large to small, thereby reducing wind load in transverse bridge direction.

[0037] Preferably, the prefabricated column 21 is composed of a plurality of column segments 211 connected by UHPC wet joints 212 between adjacent column segments 211; the column segments 211 are provided with through-going prestressed coarse steel bar embedded pipes 213, which are connected by snap-on sleeves 214 between adjacent prestressed coarse steel bar embedded pipes 213; the prefabricated column 21 is provided with prestressed coarse steel bars 215, which pass through the prestressed coarse steel bar embedded pipes 213; the ends of the prestressed coarse steel bars 215 are connected to lengthening coarse steel bars 216, which are connected to the prestressed coarse steel bars 215 by connectors 217.

[0038] Through the above structural design, the cast-in-place column structure in the traditional structure is divided into a plurality of separate column segments 211, so that the volume and weight of the column segments 211 are well controlled, and the column segments 211 can be conveniently prefabricated in the factory and conveniently transported. The multi-segment design enables continuous and rapid construction technology to be widely used. In the present embodiment, the prestressed coarse steel bar embedded pipes 213 are reserved in the column segments 211, and the two prestressed coarse steel bar embedded pipes 213 between the two adjacent column segments 211 are connected by the snap-on sleeves 214 which can be quickly installed. After the column segments 211 are connected in place, all the prestressed coarse steel bar embedded pipes 213 are also connected into a long pipe, which provides space for the installation of the prestressed coarse steel bars 215 and the lengthening coarse steel bars 216. The prestressed coarse steel bars 215 and the lengthening coarse steel bars 216 can be selected according to the actual construction height. When the height of the pier body 2 is not high, a single prestressed coarse steel bar 215 can be used. When the height of the pier body 2 is high, the prestressed coarse steel bars 215 and the lengthening coarse steel bars 216 can be used to extend the length of the steel bars. When the prestressed coarse steel bars 215 and the lengthening coarse steel bars 216 are connected, the connectors 217 can be used for connection. The connectors 217 are connecting mechanisms for steel bars, which can quickly connect two steel bars. Through the above structural and construction method improvements, the requirements for the installation, connection, stress and stability of each column segment 211 during construction can be well met. The column segment 211 construction does not need to wait for the joint material to reach the design strength, thereby realizing multi-segment continuous and rapid construction. After using the multi-segment continuous and rapid construction technology, more joints or seams can be provided, thereby reducing the height of the prefabricated segments and the weight of the prefabricated components.

[0039] Preferably, a prestressed coarse steel bar bundle pipeline 218 is arranged in the column segment 211, and a prestressed coarse steel bar bundle 219 composed of multiple steel bars is arranged in the prestressed coarse steel bar bundle pipeline 218. Multiple vertical vertical bars 2110 are arranged in the column segment 211, and the multiple vertical vertical bars 2110 are connected by stirrups 2111. In this embodiment, the prestressed coarse steel bar bundle 219 is arranged in a bundle, so as to increase the sectional reinforcement ratio and improve the structural bearing capacity. The vertical bars 2110 and the stirrups 2111 form a reinforced bar mesh structure, further improving the structural strength of the column segment.

[0040] Preferably, the prefabricated slab 22 is composed of multiple slab segments 221, dry joints are arranged between adjacent slab segments 221, and shear keys 222 are arranged to be engaged with each other. A steel-UHPC combined wet joint 223 is arranged between the prefabricated column 21 and the prefabricated slab 22 and between the prefabricated column 21 and the prefabricated truss, and the steel-UHPC combined wet joint 223 is composed of a pre-embedded channel steel 2231, a pre-embedded steel sleeve 2232, a connecting angle steel 2233, a pre-embedded connecting steel bar 2234, and a cast-in-place UHPC 2235.

[0041] Through the above structural design, the cast-in-place slab structure in the traditional structure is divided into multiple separate slab segments 221, so that the volume and weight of the slab segments 221 are well controlled, and the slab segments 221 can be easily prefabricated in the factory and transported and handled. In order to improve the connection strength between the slab segments 221, the shear keys 222 are arranged on the slab segments 221 in this embodiment, and the stability is improved through the engagement of the shear keys 222. The steel-UHPC combined wet joint 223 is arranged between the prefabricated column 21 and the prefabricated slab 22, and the steel-UHPC combined wet joint 223 is also arranged between the prefabricated column 21 and the prefabricated truss. The steel-UHPC combined wet joint 223 is composed of a pre-embedded channel steel 2231, a pre-embedded steel sleeve 2232, a connecting angle steel 2233, a pre-embedded connecting steel bar 2234, and a cast-in-place UHPC 2235. The joint is stressed by the steel member, the UHPC, and the pre-embedded connecting steel bar 2234, has reliable and good bearing performance, and is convenient and fast to construct.

[0042] Preferably, multiple longitudinal connecting bars 224 and transverse connecting bars 225 are arranged in the prefabricated slab 22. In this embodiment, the connecting bars arranged in a network structure can effectively improve the structural strength of the prefabricated slab 22.

[0043] Preferably, a cast-in-situ concrete wet joint solid section 2112 is arranged in the top column section 211, and a pier top connecting steel bar 2113 is embedded in the cast-in-situ concrete wet joint solid section 2112; the prestressed thick steel bar 215 in the top column section 211 and the pier top connecting steel bar 2113 extend into the bent cap 3 and are connected with the bent cap 3. In this embodiment, the top section of the prefabricated column 21 is a solid structure, and the cast-in-situ concrete wet joint solid section 2112 is arranged on the topmost column section 211 by cast-in-situ construction, and the pier top connecting steel bar 2113 is arranged in the cast-in-situ concrete wet joint solid section 2112 to connect the bent cap 3, so as to improve the stability of the connection.

[0044] Preferably, a steel plate is embedded on the column section 211, and the steel plates embedded between adjacent column sections 211 are welded and connected; a unitized assembly formwork is arranged between adjacent column sections 211, and the unitized assembly formwork is connected with the adjacent slab section 221. In this embodiment, the prefabricated components are installed by a tower crane, and the column sections 211 are temporarily fixed by welding the embedded steel plates. The temporary fixing measures meet the stress and stability requirements during the construction stage, and the prestressed thick steel bar 215 can be tensioned after continuous construction of several sections, thereby shortening the construction period.

[0045] Preferably, the prefabricated truss 23 is a prestressed concrete structure, and the end of the prefabricated truss 23 is provided with a steel sleeve 231 and a truss connecting steel bar 232, and is connected with the prefabricated column 21 through the steel sleeve 231 and the truss connecting steel bar 232. In this embodiment, the prefabricated truss 23 is a prestressed concrete structure, and the end is provided with a steel sleeve 231 and a connecting truss steel bar to be connected with the prefabricated column 21.

[0046] Preferably, the pier body 2 and the base 1 are connected by a cast-in-situ concrete wet joint, and the base 1 is provided with a cast-in-situ wet joint connecting steel bar 11 and a pier bottom thick steel bar 12. In this embodiment, the base 1 is provided with a cast-in-situ wet joint connecting steel bar 11 and a pier bottom thick steel bar 12 to be connected with the pier body 2, and the bottom of the pier bottom thick steel bar 12 is provided with a fixed end anchor 13 to fix the cast-in-situ concrete after connection, so as to form a solid cast-in-situ joint solid section 14.

[0047] Compared with the prior art, the utility model have the advantages of reasonable design, simple structure, the piers body is connected in combination by modular prefabricated column, prefabricated board and prefabricated truss pole, and prefabricated column, prefabricated board can be split into multiple sections, effectively improve the installation efficiency and transportation efficiency, the cross-bridge direction section width formed by the inclination in the prefabricated column is from big to small, thereby reducing the cross-bridge direction wind load, by adopting truss structure to reduce the cross-bridge direction wind load, in addition, still adopted the prestressed coarse steel bar bundle of cluster arrangement, thereby improving the section reinforcement ratio and improving the structure bearing capacity, the structure has simple structure, convenient construction, good durability, good economy, energy -concerving and environment -protective, has wide popularization and application prospect.

[0048] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A truss-type ultra-high pier structure, characterized in that, It includes a base (1), a pier (2) and a cap beam (3) connected sequentially from bottom to top; the pier includes a precast column (21), a precast slab (22) and a precast truss (23); the precast column has a rectangular cross-section; the two precast columns on the front and rear sides along the bridge direction and the two precast slabs form a box-shaped composite structure, and the two adjacent box-shaped composite structures are connected to the precast truss in the transverse direction to form a truss structure.

2. The truss-type ultra-high pier structure according to claim 1, characterized in that, The two precast columns on the front and rear sides along the bridge direction are symmetrically arranged and inclined inward. The length of the box-shaped composite structure along the bridge direction gradually changes along the height direction, forming a structure that is wider at the bottom and narrower at the top.

3. The truss-type ultra-high pier structure according to claim 2, characterized in that, The precast column is composed of multiple column segments (211), and adjacent column segments are connected by UHPC wet joints (212); a through prestressed steel bar embedded pipe (213) is provided in the column segment, and adjacent prestressed steel bar embedded pipes are connected by snap-fit ​​sleeves (214); prestressed steel bars (215) are provided in the precast column, and the prestressed steel bars pass through the prestressed steel bar embedded pipe; the ends of the prestressed steel bars are connected to extension steel bars (216), and the prestressed steel bars and the extension steel bars are connected by connectors (217).

4. The truss-type ultra-high pier structure according to claim 3, characterized in that, The column segment is also provided with a prestressed steel bar bundle duct (218), and a prestressed steel bar bundle (219) is installed in the prestressed steel bar bundle embedded duct. The prestressed steel bar bundle is composed of multiple steel bars. The column segment is also provided with multiple vertically arranged vertical bars (2110), and the multiple vertical bars are connected by stirrups (2111).

5. The truss-type ultra-high pier structure according to claim 3, characterized in that, The precast slab is composed of multiple slab segments (221), with dry joints between adjacent slab segments and shear keys (222) interlocking with each other; the precast columns and the precast slabs, as well as the precast columns and the precast trusses, all use steel-UHPC combined wet joints (223), which are composed of embedded channel steel (2231), embedded steel sleeves (2232), connecting angle steel (2233), embedded connecting steel bars (2234), and cast-in-place UHPC (2235).

6. The truss-type ultra-high pier structure according to claim 5, characterized in that, The precast slab is provided with multiple longitudinal connecting bars (224) and transverse connecting bars (225).

7. The truss-type ultra-high pier structure according to claim 3, characterized in that, A solid section of cast-in-place concrete wet-jointed segment (2112) is provided in the column segment at the top, and a connecting steel bar (2113) for the pier top is pre-embedded in the solid section of cast-in-place concrete wet-jointed segment; the prestressed steel bar in the column segment at the top and the connecting steel bar for the pier top extend into the cap beam and connect with the cap beam.

8. The truss-type ultra-high pier structure according to claim 3, characterized in that, The column segments are provided with embedded steel plates, and the embedded steel plates are welded together between adjacent column segments; unit-type prefabricated templates are provided between adjacent column segments, and the unit-type prefabricated templates are connected to adjacent plate segments.

9. The truss-type ultra-high pier structure according to claim 1, characterized in that, The precast truss is a prestressed concrete structure. The end of the precast truss is provided with a steel sleeve (231) and a truss connecting steel bar (232), and is connected to the precast column through the steel sleeve and the truss connecting steel bar.

10. The truss-type ultra-high pier structure according to claim 1, characterized in that, The pier body and the base are connected by a cast-in-place concrete wet joint. The base is provided with cast-in-place wet joint connecting steel bars (11) and pier bottom thick steel bars (12).

Images