CN106758786B - A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier - Google Patents

A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier Download PDF

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Publication number
CN106758786B
CN106758786B CN201611042839.7A CN201611042839A CN106758786B CN 106758786 B CN106758786 B CN 106758786B CN 201611042839 A CN201611042839 A CN 201611042839A CN 106758786 B CN106758786 B CN 106758786B
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China
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concrete
steel
steel tube
double skin
filled double
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CN201611042839.7A
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CN106758786A (en
Inventor
王宇航
陆国兵
聂鑫
李硕
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Chongqing University
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Chongqing University
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/268Composite concrete-metal

Abstract

The present invention relates to a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge piers, belong to technical field of bridge engineering.The bridge pier is made of Concrete-filled Double Skin Steel Tube Columns, presstressed reinforcing steel, anchor slab, cover board, Wavelike steel webplate, concrete leveling layer, anti-shear ring, bolt, connecting plate.The Concrete-filled Double Skin Steel Tube Columns are a kind of superposed columns, have hollow section form;The concrete leveling layer is used for the seam crossing of Concrete-filled Double Skin Steel Tube Columns;The cover board is on the Concrete-filled Double Skin Steel Tube Columns top;The anchor slab is embedded in cushion cap;The Wavelike steel webplate is for connecting adjacent Concrete-filled Double Skin Steel Tube Columns.The invention provides a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge piers, it can be used in the steel concrete composite bridge system of municipal highway overpass, highway overpass, have high capacity, anti-seismic performance good, assembled in situ, convenient feature of constructing can be achieved.

Description

A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier
Technical field
The present invention relates to a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge piers, belong to composite bridge Engineering field.
Background technology
The on-site concrete construction of concrete filled steel tube pillar bridge pier generally uses cast-in-place concrete, wet construction amount big.To protect The globality of bridge pier is demonstrate,proved, concrete filled steel tube pillar bridge pier does not use sectional making steel core concrete column and field erected side generally Method.
Concrete-filled Double Skin Steel Tube Columns are a kind of new shapes that developed on the basis of traditional steel core concrete column Cylindricality formula, has that axial bearing capacity is high, shear-carrying capacity is high, energy dissipation capacity is strong, member dead weight is light, easy for construction etc. many excellent Point.In having document, there is not yet concrete-filled double skin steel tube lattice bridge pier is applied in bridge structure, therefore, The prefabricated assembled technology of present invention combination composite structure, the prefabricated assembled concrete-filled double skin steel tube lattice bridge of proposition Pier is a kind of new shape bridge pier, can effectively accelerate speed of application, and reduce on-site wet operation amount has superior stress performance simultaneously.
Hollow sandwich steel pipe in prefabricated assembled concrete-filled double skin steel tube lattice bridge pier proposed by the present invention is mixed Solidifying earth pillar and Wavelike steel webplate can be prefabricated in the factory, and the segmentation of the especially Concrete-filled Double Skin Steel Tube Columns in bridge pier is prefabricated Solve the problems, such as that bridge pier is inconvenient from great caused transport with installation.Since rectangular steel pipe out of plane constraint is weak, easily occur outside plane Unstability, concrete-filled circular steel tube column is laid between interlayer steel tube can effectively reduce concrete-filled double skin steel tube forfeiture bearing capacity Speed, to improve the ductility of concrete-filled double skin steel tube;High-strength concrete is perfused in round steel pipe, it is common mixed outside round steel pipe Solidifying soil can constrain the deformation of round steel pipe, improve the bearing capacity of concrete-filled circular steel tube column, to effectively improve hollow sandwich steel The axial carrying capacity power of pipe concrete column, and then column cross-section size can be reduced.Presstressed reinforcing steel can effectively inhibit hollow sandwich steel The generation and development in pipe concrete lattice bridge pier crack under geological process.It is traditional to sew for example flat batten plate of material and angle steel is volatile Surely, Wavelike steel webplate then has higher Out-of Plane Stiffness, stability bearing capacity high.It is mixed using Wavelike steel webplate connection hollow sandwich steel pipe Solidifying earth pillar limb can effectively improve concrete-filled double skin steel tube lattice bridge pier overall stability.Prefabricated assembled hollow sandwich Concrete filled steel tube lattice bridge pier has good ductility and energy dissipation capacity, and speed of application is fast, the few feature of situ wet operation
Invention content
To solve the problems, such as that the factorial construction of bridge structure concrete-filled double skin steel tube lattice bridge pier, the present invention provide A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier, Concrete-filled Double Skin Steel Tube Columns are using overlapping rod structure The prefabricated assembled construction of concrete-filled double skin steel tube lattice bridge pier may be implemented in form.The structure type has antidetonation The characteristics of high capacity, ductility is good, good integrity, the column limb in concrete-filled double skin steel tube lattice bridge pier and waveform steel abdomen Plate is all made of factory process making, site-assembled form of construction work, live welding operation, form work engineering and concrete situ wet Operation is less, and construction is convenient, is conducive to shorten the construction period.
The technical scheme is that:
A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier, it is characterised in that:Its bridge pier includes hollow Interlayer steel tube concrete column, anchor slab, cover board, presstressed reinforcing steel, anti-shear ring, concrete leveling layer, Wavelike steel webplate, bolt, connection Plate.There is pre-stressed steel pipe high-strength concrete between inner layer steel pipe and outer layer pipe in the Concrete-filled Double Skin Steel Tube Columns limb of use Column, during the installation of Concrete-filled Double Skin Steel Tube Columns, before one section of Concrete-filled Double Skin Steel Tube Columns often is installed, The top surface of concrete leveling mounted Concrete-filled Double Skin Steel Tube Columns need to be used.The cover board of use is mixed in hollow sandwich steel pipe The top of solidifying earth pillar limb;The anchor slab of use is embedded in cushion cap;Presstressed reinforcing steel one end is anchored at anchor slab in the presstressed reinforcing steel of use On, other end tensioning on the cover board enhances the globality of Concrete-filled Double Skin Steel Tube Columns limb;During the connecting plate of use is welded on On empty interlayer steel tube concrete column limb;The Wavelike steel webplate of use is connect by bolt with connecting plate.
The present invention has following effective effect:
1. solving the problems, such as the factorial construction of the concrete-filled double skin steel tube lattice bridge pier in science of bridge building.
2. having round steel pipe high-strength concrete column, interlayer steel between the interlayer steel tube of the Concrete-filled Double Skin Steel Tube Columns used Normal concrete restrained circle pipe deformation between pipe, improves the bearing capacity of column, and column cross-section size can be smaller.Rectangular steel pipe is easily sent out The outer unstability of dough, the presence of round steel pipe high-strength concrete column can effectively reduce the speed of columns bearing capacity reduction, improve the change of column Shape and ductile performance.
3. under geological process, column section occurs the trend of tensile stress.The tensile strength of concrete is low, is easy cracking. Tensioned prestressing bar can make column section generate compression, to can inhibit the crack of concrete-filled double skin steel tube lattice bridge pier It generates and develops.
4. material is sewed as bridge pier using Wavelike steel webplate, it is rigid outside Wavelike steel webplate face compared with common batten plate and angle steel Degree is big, has higher stability bearing capacity.
5. the Concrete-filled Double Skin Steel Tube Columns and Wavelike steel webplate in concrete-filled double skin steel tube lattice bridge pier are equal It is prefabricated in the factory, especially column limb uses factory's sectional making, is conducive to component conveying and in-site installation.
Description of the drawings
Fig. 1 is the plan view of the prefabricated assembled concrete-filled double skin steel tube lattice bridge pier of the present invention.
Fig. 2 is the half elevation figure and semi-section of the prefabricated assembled concrete-filled double skin steel tube lattice bridge pier of the present invention Figure.
Fig. 3 is the Wavelike steel webplate end connection of the prefabricated assembled concrete-filled double skin steel tube lattice bridge pier of the present invention Schematic diagram.
Fig. 4 is the anchor slab schematic diagram of the prefabricated assembled concrete-filled double skin steel tube lattice bridge pier of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in further detail.
As shown in the picture, the present invention is a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier, by prefabricated Concrete-filled Double Skin Steel Tube Columns, anchor slab, presstressed reinforcing steel, cover board, Wavelike steel webplate, connecting plate, bolt, anti-shear ring, concrete Screed-coat forms.Its assemble sequence is as follows:
Prefabrication:
A. be prefabricated in the factory each basic element of character of bridge pier:Bolt 3, Wavelike steel webplate 4, cover board 8, anchor slab 9, hollow sandwich Steel core concrete column 10, connecting plate 13.
B. steel pipe, tensioned prestressing bar 2 is passed through to pour high-strength concrete in steel pipe presstressed reinforcing steel 2, maintenance is fabricated to Steel pipe high strength concrete column reinforcing 1.
C. bolt hole is opened on connecting plate 13, and then connecting plate 13 is welded on steel pipe 5.
D. steel pipe 6 is put into steel pipe 5, the steel pipe high strength concrete column reinforcing 1 made is placed on inner layer steel pipe 6 and outer layer In interlayer between steel pipe 5, normal concrete is poured between inner layer steel pipe 6, outer layer pipe 5 and steel pipe high strength concrete column reinforcing 1, Maintenance forms Concrete-filled Double Skin Steel Tube Columns 10.
Assembled in situ:
E. 7 one end of presstressed reinforcing steel is anchored on anchor slab 9, presstressed reinforcing steel 7 is located in together with anchor slab 9 on cushion cap, will The Concrete-filled Double Skin Steel Tube Columns installation for being welded with anti-shear ring 12 is located on cushion cap, pours the concrete of cushion cap part.
F. use pea gravel concreten that 10 top surface of already installed Concrete-filled Double Skin Steel Tube Columns is levelling, installation is hollow Interlayer steel tube concrete column 10, according to this method and according to requiring to install several Concrete-filled Double Skin Steel Tube Columns 10.
G., cover board 8, the tensioned prestressing bar 7 on cover board 8 are installed.
H. four Concrete-filled Double Skin Steel Tube Columns are formed according to e~g, the mode being connected by screw bolts is by Wavelike steel webplate 4 are mounted on Concrete-filled Double Skin Steel Tube Columns 10.
The present invention provides a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge piers, solve bridge structure The factorial construction problem of middle concrete-filled double skin steel tube lattice bridge pier, passes through prefabrication and field erected construction party Formula, save the duration, improve construction quality, have superior anti-seismic performance, can be used for urban viaduct, highway overpass and In the steel-concrete combined structure bridge system of elevated bridge of high speed railway.

Claims (9)

1. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier, it is characterised in that:During the bridge pier includes prefabricated Empty interlayer steel tube concrete column (10), bolt (3), Wavelike steel webplate (4), presstressed reinforcing steel (7), cover board (8), anchor slab (9), coagulation Native screed-coat (11), anti-shear ring (12), connecting plate (13);The prefabricated hollow interlayer steel tube concrete column (10) is a kind of folded Zygostyle, have hollow section feature, by steel core concrete column (1), presstressed reinforcing steel (2), outer layer pipe (5), inner layer steel pipe (6) and Anti-shear ring (12) forms, and is mounted on cushion cap, after cast-in-place concrete, entirety is formed with cushion cap;The concrete leveling layer (11) it is used for levelling prefabricated hollow interlayer steel tube concrete column section stitching portion;The anchor slab (9) is embedded in cushion cap;Described Cover board (8) is placed in Concrete-filled Double Skin Steel Tube Columns (10) top;Described presstressed reinforcing steel (7) one end is anchored on anchor slab (9), The other end is anchored on cover board (8);The bolt (3) and connecting plate (13) is for connecting Concrete-filled Double Skin Steel Tube Columns (10) and Wavelike steel webplate (4);The connecting plate is welded on outer layer pipe (5).
2. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:The prefabricated hollow interlayer steel tube concrete column (10) is by outer layer pipe (5), inner layer steel pipe (6), presstressed reinforcing steel (2), steel Pipe high-strength concrete column (1) and anti-shear ring (12) composition;The presstressed reinforcing steel (2) is built in steel pipe high strength concrete column reinforcing (1) Kernel of section;High-strength concrete is poured in the steel pipe of the steel pipe high strength concrete column reinforcing (1), and is evenly arranged in outer layer pipe (5) between inner layer steel pipe (6);Between the outer layer pipe (5) and inner layer steel pipe (6), steel pipe high strength concrete column reinforcing (1) is removed Region in addition has poured normal concrete.
3. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:The prefabricated assembled Concrete-filled Double Skin Steel Tube Columns (10) are a kind of superposed columns, and shaft is prefabricated in factory's segmentation, Scene overlapping installation, overlapping stitching portion are levelling using concrete leveling layer (11).
4. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:It is connected by Wavelike steel webplate (4) between each Concrete-filled Double Skin Steel Tube Columns (10), forms lattice bridge pier; It is connect using bolt (3) between Concrete-filled Double Skin Steel Tube Columns (10) and Wavelike steel webplate (4).
5. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:The presstressed reinforcing steel (2) uses pre-tensioning system tensioning;The presstressed reinforcing steel (7) uses post stretching tensioning.
6. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:Described presstressed reinforcing steel (7) one end is anchored on anchor slab (9), and one end is anchored on cover board (8), is made prefabricated assembled hollow Interlayer steel tube concrete column forms entirety.
7. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:The anti-shear ring (12) is welded on the steel pipe high strength concrete column reinforcing at the suspension column of Concrete-filled Double Skin Steel Tube Columns (10) (1) on.
8. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:At the suspension column of prefabricated assembled Concrete-filled Double Skin Steel Tube Columns (10), steel pipe high strength concrete column reinforcing (1) stretches out outer layer steel (5) and inner layer steel pipe (6) section is managed, is anchored in cushion cap.
9. a kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier according to claim 1, feature exist In:Described Wavelike steel webplate (4) both ends are provided with screw hole, between Wavelike steel webplate (4) and connecting plate (13) even using bolt (3) It connects.
CN201611042839.7A 2016-11-11 2016-11-11 A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier Active CN106758786B (en)

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Publication number Priority date Publication date Assignee Title
CN107130513A (en) * 2017-06-30 2017-09-05 东北大学 A kind of composite steel tube concrete folding bridge pier
CN108103926B (en) * 2017-12-25 2019-07-16 中交第二公路勘察设计研究院有限公司 Assembled hollow pier and its construction method based on end plate welding
WO2021056253A1 (en) * 2019-09-25 2021-04-01 邹胜斌 Modular composite lattice column and construction method therefor

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JP2831934B2 (en) * 1994-06-17 1998-12-02 株式会社ピー・エス How to build substructure
JP3676442B2 (en) * 1995-08-23 2005-07-27 株式会社フジタ Filled coated steel pipe concrete structure
CN101245584A (en) * 2007-02-15 2008-08-20 韩国大学工业和学术合作基金会 Modularization pole system of hollow pole unit using internal constraint and building method
CN102251476B (en) * 2011-04-19 2013-01-30 中铁二十三局集团第三工程有限公司 Measurement control method for field installation of steel tube lattice pier
CN103628403B (en) * 2013-09-16 2015-08-05 安徽省交通规划设计研究总院股份有限公司 Tubular concrete bridge pier
CN103967206A (en) * 2014-05-14 2014-08-06 福建工程学院 Combined lattice type hollow component
CN105113389B (en) * 2015-09-18 2017-01-25 河海大学 Assembled type bridge pier column member with steel-concrete composite structure

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