WO2017045223A1 - 装配式钢-混凝土组合结构桥墩柱构件 - Google Patents
装配式钢-混凝土组合结构桥墩柱构件 Download PDFInfo
- Publication number
- WO2017045223A1 WO2017045223A1 PCT/CN2015/090689 CN2015090689W WO2017045223A1 WO 2017045223 A1 WO2017045223 A1 WO 2017045223A1 CN 2015090689 W CN2015090689 W CN 2015090689W WO 2017045223 A1 WO2017045223 A1 WO 2017045223A1
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- pier
- steel
- section
- concrete
- pier column
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
Definitions
- the invention relates to an engineering structure bridge pier column component, in particular to a composite structure bridge pier column component which can be assembled and constructed.
- the prefabrication processing and installation of the component is convenient and effective to accelerate the construction progress, and has good engineering application prospect, belonging to structural engineering. Technical field.
- the pier is mainly composed of a top hat and a pier body.
- the function of the top hat is to spread the large and concentrated force transmitted from the bridge across the support to the pier and the body. Therefore, the top hat should be constructed of high strength materials. In addition, the top hat must have a large flat size to provide the necessary working surface for the construction of the beam and maintenance.
- the pier body and the platform body are the main structures supporting the bridge span, which not only bears all the loads transmitted from the bridge span structure, but also directly bears various loads such as earth pressure, water flow impact force, ice pressure, ship impact force, etc.
- the platform has sufficient strength, rigidity and stability. It is an important part of the bridge structure.
- Gravity piers are generally constructed of concrete or stone. A pier cap is placed on the pier and the foundation is connected. Its characteristic is to make full use of the compressive performance of the masonry material, and to withstand the vertical and horizontal external forces by its large cross-sectional size and weight, it has the advantages of strong durability, simple construction, convenient material selection and steel saving.
- the disadvantages are large amount of work, large and bulky shape, reducing the effective aperture under the bridge and increasing the foundation load; especially when the pier is high and the bearing capacity of the foundation is low; the light pier has a light and beautiful appearance, and the amount of work is small, which can be alleviated.
- Foundation load saving basic engineering, easy to use assembly structure or construction with sliding formwork, which is beneficial to speed up construction progress and improve labor productivity.
- the disadvantage is that in some cases, the pier structure is more complicated, there are certain construction difficulties, and there are certain difficulties in construction schedule and control.
- the present invention provides a prefabricated steel-concrete composite structure pier column member, which is constructed under the premise of ensuring that the pier structure stress is reasonably safe and meets the design requirements, while considering the construction cost and Progress, reduce component volume, speed up construction and improve safety.
- the pier column is a hollow tubular structure, which is formed by assembling and connecting the upper section of the pier and the lower section of the pier.
- the bottom end of the lower section of the pier is installed between the reinforcing pipe and the concrete, and the upper section of the pier passes the angle of the ox leg Attached to the beam assembly; the beam is a prestressed structure.
- the bottom of the reinforcing tube is welded with a bottom plate, and a stiffening rib is welded between the bottom plate and the reinforcing plate, and the bottom plate and the stiffening rib are embedded in the concrete of the pile foundation.
- the top end of the upper section of the pier has a T-shaped open clamp and the bottom end has a flange.
- the lower section of the lower portion of the pier has a flange at the top end, and the bottom end has a radially distributed stiffener plate, and the stiffened rib is embedded in the concrete.
- a steel mesh is connected between the upper section of the pier and the lower section of the pier, and a reinforcing mesh card is arranged on the inner side of the upper end of the lower section of the pier.
- the beam is a steel beam of an I-shaped cross section.
- the pier column and the beam are filled with concrete, and the beam is also provided with a pre-stressed steel bundle with a post-tensioning method.
- the invention simultaneously proposes a construction method of the above-mentioned assembled steel-concrete composite structure pier column member, comprising the following steps:
- Step 1 prefabricated pile foundation cap, pier column and beam; reinforced ribs are arranged at the lower end of the lower section of the pier, a steel mesh card is arranged on the inner side of the upper pipe wall, and a pier connecting ring is arranged on the outer side; outside the lower end of the upper section of the pier a pier connecting ring is arranged, and a T-shaped open clamp for arranging the steel beam to extend the I-beam is arranged at the upper end;
- Step 2 burying the pile foundation bearing section reinforcement pipe in the pile foundation cap to ensure the installation and positioning of the lower section of the pier and strengthening the section stress, and then pouring the pile foundation cap;
- Step 3 arranging the lower section of the pier on the section reinforcement pipe of the pile foundation, and pouring concrete to fix the lower section of the pier to the pile foundation cap;
- Step 4 connecting the upper and lower segments of the pier column through the flange, and reinforced mesh connection is arranged inside the section;
- Step 5 connecting the empty steel pipe pier column and the steel beam, and arranging the extensional I-beams at both ends of the steel beam to be placed in the T-shaped open clamp at the upper end, and adopting the method of bolt-type connection by using the method of the beef-leg angle steel;
- Step 6 using a post-tensioning tensioning prestressed steel bundle in the transverse direction of both ends of the steel beam;
- step 7 concrete is poured into the steel pipe and the beam to the steel beam.
- the segment-assembled steel-concrete composite structure pier column member of the present invention comprises an empty steel pipe buried in the pile foundation cap, and the pile foundation cap is subjected to special treatment pre-buried reinforcement pipe pouring.
- the treated pile cap and the bottom of the lower section of the empty steel pipe pier are connected by concrete pouring.
- the upper and lower section pier columns are connected by section connection and pre-buried with partial reinforcement mesh to strengthen the connection.
- the steel beam is connected to the upper section of the empty steel pipe pier column by means of assembly.
- the connection method mainly connects the steel pipe concrete pier column and the steel beam bolt through the I-beam and the ox-leg steel which are extended at both ends of the steel beam.
- the hole is reserved, and the concrete beam and the steel pipe are filled with concrete. After the concrete reaches a certain age, the steel beam at both ends of the steel beam is prestressed to form a segmental assembled steel-concrete combination. Structural pier column members.
- the pile foundation cap section reinforcement pipe is embedded in the pile foundation cap before the cap is poured, Ensure the installation and positioning of the lower section of the pier and the reinforcement of the section.
- the ribbed ribs are arranged at the lower end, and the reinforcing mesh card is arranged on the inner side of the upper end of the pipe, and the pier connecting ring is arranged on the outer side.
- the upper section of the pier is prefabricated, with a pier connecting ring on the outside of the lower end and a T-shaped open outer pipe at the upper end, which is convenient for lapping the steel beam to extend the I-beam.
- the connection of the upper and lower section pier columns is connected by the upper and lower pier connection ring bolts, and a steel mesh is arranged inside the section to strengthen the connection.
- the hollow steel pipe pier column is longitudinally connected with the steel beam, and the outer cross-section of the steel beam is extended on the outer tube of the T-shaped open end, and the steel pipe is assembled by bolts.
- the hollow steel pipe pier column and the steel beam are horizontally connected at both ends, and the pretensioned steel beam is tensioned by a post-tension method. After the above process is completed, concrete is poured from the steel beam into the steel pipe and the beam.
- the concrete-filled steel tubular pier columns have large pressure resistance, reduce the volume of the pier column, and tension the transverse prestressed steel bars, which can increase the span of the beam and ensure the safety of the structure without overturning.
- the steel beam is used to inject the concrete form, giving full play to the tensile strength of the steel and the compressive capacity of the concrete, and reducing the building height and volume of the component under the premise of meeting the design requirements;
- Each segment has strong connection reliability and good assembly performance.
- FIG. 1 is a schematic structural view of a precast concrete front section assembled steel-concrete composite structure pier column according to an embodiment of the present invention
- Figure 2 is a schematic view of the structure of Figure 1 after pouring concrete
- Figure 3 is a sectional view of the pile foundation of Figure 1;
- Figure 4 is a schematic structural view of the upper section of the pier in Figure 1;
- Figure 5 is a left side view of Figure 4.
- Figure 6 is a bottom view of Figure 4.
- Figure 7 is a schematic view showing the structure of the bull fillet steel of Figure 1;
- Figure 8 is a right side view of Figure 7;
- Figure 9 is a schematic view of a partial reinforcing mesh of Figure 1;
- Figure 10 is a plan view of Figure 9;
- Figure 11 is a schematic view of the pile-supported section of the pile foundation of Figure 1;
- Figure 12 is a plan view of Figure 11;
- Figure 13 is a schematic view of the lower section of the pier of Figure 1;
- Figure 14 is a bottom view of Figure 13;
- 1 pile foundation platform 1 pile foundation bearing section reinforcement pipe, 2 pile foundation bearing section reinforcement pipe, 3 bridge pier lower section, 4 steel mesh card, 5 partial reinforcement mesh, 6 connection bolts, 7 upper and lower pier connection rings, 8 bridge pier upper sections, 9 prestressed steel bars, 10 anchors, 11 anchor plates, 12 steel beams, 13 transverse joint bolts, 14 horn angle steel, 15 longitudinal joint bolts.
- Figure 1 - Figure 14 shows the pre-concrete steel-concrete composite bridge pier diagram of the concrete front section.
- the pile foundation cap 1 is treated, and the cross-section of the pile foundation cap is strengthened and casted, and pre-formed between the top of the pile-supported section cross-section reinforcing pipe 2 and the top surface of the pile-base cap 1 It is reserved for the groove of the lower section 3 of the pier, which facilitates the reliability and installation positioning of the end of the empty steel pipe at the prefabricated section.
- the ribbed rib is welded to the end of the lower section of the steel pipe pier to form the lower section 3 of the pier.
- a stiffened rib is arranged at the lower end thereof, and a reinforcing mesh card 4 is arranged on the inner side of the upper end of the pipe.
- the bridge pier connecting ring is arranged on the outside, the lower section 3 of the pier is buried in the pile foundation cap 1 , and the concrete connected thereto is poured in the groove. After the concrete reaches a certain age, the upper part is installed.
- the T-shaped open outer tube is arranged at the upper end, which is convenient for lapping the steel beam to extend the I-beam 12.
- the upper section 8 of the pier is longitudinally connected to the steel beam 12, and at the same time, the transverse joint bolt 13 and the longitudinal connecting bolt 15 are assembled by means of the horn angle steel 14.
- the steel beam 12 adopts an I-shaped cross-section beam and has laterally stiffened ribs.
- the upper section 8 of the pier is transversely connected to both ends of the steel beam 12.
- the transverse prestressed steel bars 9 are worn inside, and the anchors 10 are installed at the ends, and the pretensioned steel beams are tensioned by post-tensioning.
- Concrete is poured into the steel beam 12 and the steel pipe. After the concrete reaches a certain age, the upper section 8 of the pier is transversely connected to both ends of the steel beam, and the pretensioned steel beam is tensioned by a post-tensioning method. Forming a segment-assembled steel-concrete composite structure pier column member.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Revetment (AREA)
- Foundations (AREA)
Abstract
Description
Claims (8)
- 一种装配式钢·混凝土组合结构桥墩柱构件,包括桩基承台、桥墩柱和横梁,其特征在于:所述桩基承台内预埋有加强管,所述桥墩柱为空心管状结构,由桥墩上节段和桥墩下节段装配连接而成,所述桥墩下节段的底端安装于加强管与混凝土之间,所述桥墩上节段通过牛腿角钢与横梁装配连接;所述横梁为预应力结构。
- 根据权利要求1所述的装配式钢·混凝土组合结构桥墩柱构件,其特征在于:所述加强管的底部焊接有底板,所述底板与加强板之间焊接有加劲肋板,所述底板和加劲肋板嵌于桩基承台的混凝土内。
- 根据权利要求1所述的装配式钢·混凝土组合结构桥墩柱构件,其特征在于:所述桥墩上节段的顶端具有T形敞口卡箍,底端具有法兰盘。
- 根据权利要求3所述的装配式钢·混凝土组合结构桥墩柱构件,其特征在于:所述桥墩下节段额顶端具有法兰盘,底端具有辐向分布的加劲肋板。
- 根据权利要求4所述的装配式钢·混凝土组合结构桥墩柱构件,其特征在于:所述桥墩上节段和桥墩下节段之间连接有钢筋网,所述桥墩下节段上端内侧设有钢筋网卡片。
- 根据权利要求5所述的装配式钢·混凝土组合结构桥墩柱构件,其特征在于:所述横梁为工字形截面的钢横梁。
- 根据权利要求6所述的装配式钢·混凝土组合结构桥墩柱构件,其特征在于:所述桥墩柱和横梁内灌注有混凝土,所述横梁内还穿设有后张拉法的预应力钢束。
- 根据权利要求1所述的装配式钢·混凝土组合结构桥墩柱构件的施工方法,其特征在于包括以下步骤:步骤1,预制桩基承台、桥墩柱和横梁;在桥墩下节段的下端布置加筋肋板,上端管壁内侧设置钢筋网卡片,外侧设置桥墩连接环;在桥墩上节段的下端外侧设置桥墩连接环,上端设置用于搭接钢横梁外伸工字钢的T型敞口卡箍;步骤2,在桩基承台之内埋入桩基承台断面加强管,用以保证桥墩下节段的安装定位和加强节段受力,然后浇筑桩基承台;步骤3,将桥墩下节段套设于桩基承台断面加强管上,并浇筑混凝土将桥墩下节段与桩基承台固定连接;步骤4,通过法兰盘连接上下节段桥墩柱,在断面处内部设置钢筋网加强连接;步骤5,连接空钢管桥墩柱与钢横梁,将钢横梁两端外伸工字型钢搭接在上端设置T型敞卡箍内,同时采用牛腿角钢的方式,通过螺栓装配式连接;步骤6,在钢横梁两端的横向上采用后张法张拉预应力钢束;步骤7,向钢横梁向钢管和横梁内浇筑混凝土。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP15903296.0A EP3181755B1 (en) | 2015-09-18 | 2015-09-25 | Construction method for a prefabricated pier column member with steel-concrete composite structure |
KR1020177012604A KR102055436B1 (ko) | 2015-09-18 | 2015-09-25 | 조립식 강합성 구조 교각 기둥 부재 |
JP2017525984A JP6329702B2 (ja) | 2015-09-18 | 2015-09-25 | 組立式鉄筋コンクリート組合せ構造の橋脚柱部材 |
US15/523,955 US10047485B2 (en) | 2015-09-18 | 2015-09-25 | Assembled type pier column member with steel-concrete composite structure |
AU2015409344A AU2015409344B2 (en) | 2015-09-18 | 2015-09-25 | Assembled type pier column member with steel-concrete composite structure |
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CN2015106010783 | 2015-09-18 | ||
CN201510601078.3A CN105113389B (zh) | 2015-09-18 | 2015-09-18 | 装配式钢‑混凝土组合结构桥墩柱构件 |
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US (1) | US10047485B2 (zh) |
EP (1) | EP3181755B1 (zh) |
JP (1) | JP6329702B2 (zh) |
KR (1) | KR102055436B1 (zh) |
CN (1) | CN105113389B (zh) |
AU (1) | AU2015409344B2 (zh) |
WO (1) | WO2017045223A1 (zh) |
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EP3181755A1 (en) | 2017-06-21 |
KR102055436B1 (ko) | 2019-12-12 |
CN105113389B (zh) | 2017-01-25 |
JP6329702B2 (ja) | 2018-05-23 |
EP3181755B1 (en) | 2020-09-02 |
EP3181755A4 (en) | 2017-11-15 |
AU2015409344A1 (en) | 2017-05-18 |
JP2017534008A (ja) | 2017-11-16 |
KR20170075753A (ko) | 2017-07-03 |
US20170356144A1 (en) | 2017-12-14 |
AU2015409344B2 (en) | 2018-07-12 |
US10047485B2 (en) | 2018-08-14 |
CN105113389A (zh) | 2015-12-02 |
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