CN216999269U - Semi-fabricated ultra-high performance concrete constraint steel reinforced concrete pier column - Google Patents
Semi-fabricated ultra-high performance concrete constraint steel reinforced concrete pier column Download PDFInfo
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- CN216999269U CN216999269U CN202220647966.4U CN202220647966U CN216999269U CN 216999269 U CN216999269 U CN 216999269U CN 202220647966 U CN202220647966 U CN 202220647966U CN 216999269 U CN216999269 U CN 216999269U
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Abstract
一种半装配式超高性能混凝土约束型钢混凝土墩柱，包括超高性能混凝土外壳，所述超高性能混凝土外壳内壁上设置有纵向肋板带，且超高性能混凝土外壳底端内部设置有锚筋，锚筋底端焊接在连接板上，连接板通过预埋高强螺栓固定在基础上，在所述超高性能混凝土外壳内设置有钢筋骨架，钢筋骨架内侧设置有型钢，所述型钢和钢筋骨架底端焊接在连接板上，型钢的翼缘外侧设置有剪力连接件，所述纵向肋板带、钢筋骨架、型钢及剪力连接件均封装于超高性能混凝土外壳内的混凝土内。本实用新型墩柱抗腐蚀能力强、施工方便、耐久性好、承载力高、抗震延性好的超高性能混凝土外壳约束型钢混凝土桥梁墩柱。
A semi-fabricated ultra-high-performance concrete restrained steel-concrete pier column comprises an ultra-high-performance concrete shell, the inner wall of the ultra-high-performance concrete shell is provided with longitudinal rib strips, and the bottom end of the ultra-high-performance concrete shell is provided with anchors The bottom end of the anchor bar is welded on the connecting plate, and the connecting plate is fixed on the foundation by pre-embedded high-strength bolts. The ultra-high-performance concrete shell is provided with a steel skeleton, and the inner side of the steel skeleton is provided with a section steel. The section steel and the steel bar The bottom end of the skeleton is welded on the connecting plate, and the outer side of the flange of the profiled steel is provided with a shearing connector. The longitudinal rib strips, the steel skeleton, the profiled steel and the shearing connector are all encapsulated in the concrete in the ultra-high performance concrete shell. The pier column of the utility model has the advantages of strong anti-corrosion ability, convenient construction, good durability, high bearing capacity and good seismic ductility.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering construction, and particularly relates to a semi-fabricated ultra-high performance concrete restrained steel reinforced concrete pier stud.
Background
The bridge pier is one of the most important components in the bridge, and in addition to the requirement of having enough capacity for bearing vertical load, the bridge pier must have enough capacity for resisting horizontal earthquake action. In order to meet the stress performance of the bridge, the design purpose is usually achieved by methods of expanding the section size, increasing the steel content, improving the concrete strength grade and the like, and particularly, in order to improve the seismic ductility and the energy consumption capacity of the bridge, the consumption of energy consumption reinforcing steel bars is usually increased in a pier column and foundation connection area. The method for increasing the consumption of the steel bars brings inconvenience to construction, and therefore, a method for improving the seismic performance of the bridge pier columns by embedding the section steel in the concrete is also provided. The structural steel is embedded in the reinforced concrete member to form a reinforced concrete structure, and the structure has the unique advantages of high bearing capacity, strong shearing resistance, good seismic ductility, good energy consumption capacity and the like. At present, the structure is generally constructed by adopting a method of pouring concrete on site, namely, firstly, a formwork is erected, profile steel and a steel reinforcement framework are simultaneously placed in the formwork, and then concrete is poured to form a steel concrete structure. The construction method for pouring concrete on site has the defects of complex process, long construction period, large construction occupied area, high construction risk and the like, and the supports and the templates erected on site are easy to deform and have adverse effects on the quality of components. In order to overcome the problems, a disposable template can be made of some novel materials, profile steel, a steel reinforcement framework and the like are placed in the disposable template, and concrete is poured to form the template-disassembly-free profile steel concrete pier column with strong corrosion resistance, convenient construction and good durability.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a semi-assembled ultra-high performance concrete confined steel concrete pier stud with an ultra-high performance concrete shell, which has the advantages of strong corrosion resistance, convenient construction, good durability, high bearing capacity and good earthquake resistance and ductility. The bridge pier column does not need to be used for supporting templates on site, solves the problem that the supporting templates are difficult to cast in-situ concrete construction in some complex areas, and well reflects the requirements of green building construction.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the semi-assembled ultra-high performance concrete restraint type steel concrete pier stud comprises an ultra-high performance concrete shell, wherein a longitudinal rib plate strip is arranged on the inner wall of the ultra-high performance concrete shell, an anchor bar is arranged inside the bottom end of the ultra-high performance concrete shell, the bottom end of the anchor bar is welded on a connecting plate, the connecting plate is fixed on a foundation through a pre-buried high-strength bolt, a steel reinforcement framework is arranged in the ultra-high performance concrete shell, the inner side of the steel reinforcement framework is provided with section steel, the section steel and the bottom end of the steel reinforcement framework are welded on the connecting plate, a shear connector is arranged on the outer side of a flange of the section steel, and the longitudinal rib plate strip, the steel reinforcement framework, the section steel and the shear connector are all packaged in concrete in the ultra-high performance concrete shell.
The section of the ultra-high performance concrete shell is square or round.
The steel bar framework is composed of longitudinal bars and stirrups, the longitudinal bars are arranged along the inner molded surface of the ultra-high performance concrete shell, the stirrups are sleeved on the outer sides of the longitudinal bars at equal intervals, and the stirrups are welded on the longitudinal bars.
The utility model has the technical effects that:
the utility model relates to a novel ultrahigh-performance concrete shell constraint type steel reinforced concrete bridge pier stud which is strong in corrosion resistance, convenient to construct, good in durability, high in bearing capacity and good in seismic ductility and is formed by manufacturing a disposable thin-wall shell by using ultrahigh-performance concrete, arranging section steel and reinforcing steel bars in the shell and pouring concrete in the shell. The bridge pier column does not need to be used for a field formwork, solves the problem that the formwork is difficult to cast in situ concrete construction in some complex areas, and well reflects the requirements of green building construction.
Drawings
FIG. 1 is a schematic view of a semi-fabricated ultra-high performance concrete-reinforced concrete pier stud of the embodiment 1 of the present invention;
FIG. 2 is a sectional view taken along line B-B of FIG. 1 according to embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of a semi-fabricated ultra-high performance concrete-confined steel reinforced concrete pier stud without concrete pouring and without section steel installation in accordance with example 1 of the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3 according to embodiment 1 of the present invention;
FIG. 5 is a schematic view of a semi-fabricated ultra-high performance concrete-reinforced concrete pier stud of embodiment 2 of the present invention;
FIG. 6 is a sectional view taken along line b-b of FIG. 5 in accordance with embodiment 2 of the present invention;
FIG. 7 is a schematic diagram of a semi-fabricated ultra-high performance concrete-confined steel reinforced concrete pier stud without concrete pouring and without section steel installation in accordance with example 2 of the present invention;
FIG. 8 is a sectional view taken along line a-a of FIG. 7 in accordance with embodiment 2 of the present invention;
1-ultrahigh-performance concrete shell, 2-longitudinal bar, 3-stirrup, 4-section steel, 5-concrete, 6-longitudinal rib plate strip, 7-steel reinforcement framework, 8-shear connector, 9-connecting plate, 10-foundation, 11-embedded high-strength bolt and 12-anchor bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to 4, a semi-fabricated ultrahigh-performance concrete confined steel reinforced concrete pier stud comprises an ultrahigh-performance concrete shell 1, wherein a longitudinal rib plate 6 is arranged on the inner wall of the ultrahigh-performance concrete shell 1, an anchor bar 12 is arranged inside the bottom end of the ultrahigh-performance concrete shell 1, the bottom end of the anchor bar 12 is welded on a connecting plate 9, the connecting plate 9 is fixed on a foundation 10 through a pre-embedded high-strength bolt 11, a steel reinforcement framework 7 is arranged in the ultrahigh-performance concrete shell 1, section steel 4 is arranged on the inner side of the steel reinforcement framework 7, the bottom ends of the section steel 4 and the steel reinforcement framework 7 are welded on the connecting plate 9, a shear connector 8 is arranged on the outer side of a flange of the section steel 4, and the longitudinal rib plate 6, the steel reinforcement framework 7, the section steel 4 and the shear connector 8 are all packaged in concrete 5 in the ultrahigh-performance concrete shell 1.
The section of the ultra-high performance concrete shell 1 is square.
The steel reinforcement framework is by indulging muscle 2 and stirrup 3 and constitute, and a plurality of muscle 2 of indulging are arranged along the profile in the ultra high performance concrete shell 1, and the equidistant cover in a plurality of outside of indulging muscle 2 has stirrup 3, and 3 welding of stirrup is on indulging muscle 2.
A construction method of a semi-fabricated ultra-high performance concrete restraint type steel reinforced concrete pier stud comprises the following steps:
Prefabricating an ultrahigh-performance concrete shell 1: in a different place or a factory, manufacturing the section steel 4 according to the design size requirement of the combined column, and welding a shear connecting piece 8 on the flange of the section steel 4; binding a steel bar framework 7: binding a steel bar framework 7 in the pier column by using the longitudinal bars 2 and the stirrups 3 according to the design requirement; welding the section steel 4 and the steel reinforcement framework 7 on the connecting plate 9; manufacturing a template, supporting the template on a connecting plate 9, and pouring ultra-high performance concrete to form a thin-wall prefabricated ultra-high performance concrete shell 1 with a longitudinal rib plate strip 6;
Hoisting the ultra-high performance concrete shell 1, and fixing the ultra-high performance concrete shell 1 on a foundation 10 through a connecting plate 9 and an embedded high-strength bolt 11 embedded on the foundation; and (3) pouring concrete 5 in the ultra-high performance concrete shell 1, and forming the ultra-high performance concrete confined steel concrete pier stud after the concrete reaches the design strength.
Example 2
As shown in fig. 5 to 8, embodiment 2 differs from embodiment 1 in that: the section of the ultra-high performance concrete shell 1 is circular.
Claims (3)
1. The semi-assembled ultra-high performance concrete restraint type steel concrete pier stud is characterized by comprising an ultra-high performance concrete shell, wherein a longitudinal rib plate strip is arranged on the inner wall of the ultra-high performance concrete shell, an anchor bar is arranged inside the bottom end of the ultra-high performance concrete shell, the bottom end of the anchor bar is welded on a connecting plate, the connecting plate is fixed on a foundation through a pre-buried high-strength bolt, a steel reinforcement framework is arranged in the ultra-high performance concrete shell, profile steel is arranged on the inner side of the steel reinforcement framework, the profile steel and the bottom end of the steel reinforcement framework are welded on the connecting plate, a shear connector is arranged on the outer side of the flange of the profile steel, and the longitudinal rib plate strip, the steel reinforcement framework, the profile steel and the shear connector are all packaged in concrete in the ultra-high performance concrete shell.
2. The semi-fabricated ultra-high performance concrete-reinforced steel concrete pier stud of claim 1, wherein: the section of the ultra-high performance concrete shell is square or round.
3. The semi-fabricated ultra-high performance concrete-reinforced steel concrete pier stud of claim 1, wherein: the steel bar framework is composed of longitudinal bars and stirrups, the longitudinal bars are arranged along the inner molded surface of the ultra-high performance concrete shell, the stirrups are sleeved on the outer sides of the longitudinal bars at equal intervals, and the stirrups are welded on the longitudinal bars.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220647966.4U CN216999269U (en) | 2022-03-24 | 2022-03-24 | Semi-fabricated ultra-high performance concrete constraint steel reinforced concrete pier column |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220647966.4U CN216999269U (en) | 2022-03-24 | 2022-03-24 | Semi-fabricated ultra-high performance concrete constraint steel reinforced concrete pier column |
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| CN216999269U true CN216999269U (en) | 2022-07-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005296A (en) * | 2023-07-07 | 2023-11-07 | 中铁七局集团第二工程有限公司 | Prefabricated steel tube type steel concrete spliced piers and construction technology |
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2022
- 2022-03-24 CN CN202220647966.4U patent/CN216999269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005296A (en) * | 2023-07-07 | 2023-11-07 | 中铁七局集团第二工程有限公司 | Prefabricated steel tube type steel concrete spliced piers and construction technology |
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