CN107059626B - Rapid construction method for transverse block longitudinal segmentation of urban elevated steel box girder bridge - Google Patents

Rapid construction method for transverse block longitudinal segmentation of urban elevated steel box girder bridge Download PDF

Info

Publication number
CN107059626B
CN107059626B CN201611197317.4A CN201611197317A CN107059626B CN 107059626 B CN107059626 B CN 107059626B CN 201611197317 A CN201611197317 A CN 201611197317A CN 107059626 B CN107059626 B CN 107059626B
Authority
CN
China
Prior art keywords
hoisting
plate
box girder
transverse
steel box
Prior art date
Application number
CN201611197317.4A
Other languages
Chinese (zh)
Other versions
CN107059626A (en
Inventor
汪劲丰
王敏权
王文浩
向华伟
陈春雷
Original Assignee
浙江大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江大学 filed Critical 浙江大学
Priority to CN201611197317.4A priority Critical patent/CN107059626B/en
Publication of CN107059626A publication Critical patent/CN107059626A/en
Application granted granted Critical
Publication of CN107059626B publication Critical patent/CN107059626B/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • 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

Abstract

The invention discloses a rapid construction method for transverse partitioning and longitudinal segmentation of an urban elevated steel box girder bridge, which specifically comprises the following steps: firstly, determining a longitudinal subsection transverse block cutting position, and secondly, determining a longitudinal steel box girder cutting position. Transversely partitioning the box girder according to the number of box chambers of the steel box girder, wherein each box chamber is one; the hoisting unit is spliced on the jig frame, a bottom plate, a transverse clapboard, a web plate and a top plate are sequentially assembled, and the structure is welded; and finally, hoisting and welding on site. The hoisting sequence should be from bottom to top in height, the longitudinal bridge direction should be from two sides to middle, and the transverse bridge direction should be from middle to two sides. The invention can reduce the time of site operation to the utmost extent and reduce the influence on urban environment. The longitudinal segmentation and the transverse segmentation can reduce the requirement on the hoisting capacity of hoisting equipment, reduce the difficulty in transporting large-segment box girders in cities, and are more suitable for the construction of urban overhead steel box girder bridges.

Description

Rapid construction method for transverse block longitudinal segmentation of urban elevated steel box girder bridge

Technical Field

The invention relates to rapid construction of an urban overhead steel box girder bridge, which reasonably performs transverse blocking and longitudinal segmentation on a steel box girder, prefabricating a hoisting unit in a factory, and performing hoisting and welding on site.

Background

The urban viaduct is a main means for solving the problem of urban traffic jam. The steel box section is widely applied to urban viaducts due to the advantages of large bending and torsional rigidity, light weight, high construction speed and the like. However, the construction of urban viaducts is different from the construction of ordinary bridges, and the construction sites are often located in busy urban areas, with heavy traffic, and schools, residences, commercial areas, etc. around the urban viaducts, so that the construction is often restricted by many factors. The large-scale hoisting equipment cannot be used due to the restriction of the field, the hoisting weight and the size of a hoisted object are limited, and the transportation of a large-segment box girder in a city is difficult; the traffic is limited, and a certain traffic requirement needs to be met during construction; the construction speed is required to be high due to the limitation of the construction period.

Disclosure of Invention

The invention provides a rapid construction method for transverse block longitudinal segmentation of an urban elevated steel box girder bridge, aiming at solving a series of restriction conditions existing in the construction of the urban elevated steel box girder bridge and achieving the purpose of rapid construction. The method has high construction speed and low requirement on hoisting equipment, and can meet the requirement on quick construction of the urban overhead steel box girder bridge.

A rapid construction method for transverse block longitudinal segmentation of an urban elevated steel box girder bridge specifically comprises the following steps:

the method comprises the following steps: and determining the longitudinal segmentation and transverse segmentation cutting positions. And determining the longitudinal cutting part of the steel box girder according to the hoisting capacity, span and pier position arrangement condition of the field crane. And transversely partitioning the box girder according to the number of the box girder chambers of the steel box girder, wherein each box girder chamber is one. Transverse partitioning necessarily results in some chambers lacking webs, care being taken not to have the same chamber lacking both left and right side webs, and not to have one chamber with the least bending stiffness lacking webs. When the top plate and the bottom plate are cut, the top plate of the first hoisting part is shorter than the bottom plate, the top plate of the second hoisting part is longer than the bottom plate, and the first hoisting part can be used as a support of the second hoisting part. If the span is large, the bending and torsional rigidity of the section does not meet the welding requirement, and temporary support can be applied to the opening.

Step two: the hoisting unit is spliced on the jig frame, the bottom plate, the transverse partition plate, the web plate and the top plate are sequentially assembled, the structure is welded, and the pre-designed longitudinal section transverse partitioning position is reserved and is not welded. After welding, the hoisting unit is reinforced, and then the hoisting unit is separated from the tire.

Step three: and (6) hoisting and welding on site. And transporting the hoisting unit to a construction site, and hoisting and welding. And dismantling the temporary support after the steel box girder is qualified in inspection. The hoisting sequence should be from bottom to top in height, the longitudinal bridge direction should be from two sides to middle, and the transverse bridge direction should be from middle to two sides.

Has the advantages that: the construction method can reduce the time of site construction to the maximum extent and reduce the influence on urban environment because most of the manufacturing and processing time is finished in a factory and only the hoisting and welding are carried out on site. The longitudinal segmentation and the transverse segmentation can reduce the requirement on the hoisting capacity of hoisting equipment, reduce the difficulty in transporting large-segment box girders in cities, and are more suitable for the construction of urban overhead steel box girder bridges.

FIG. 1(A) is a schematic diagram of a steel box girder in transverse blocks;

FIG. 1(B) is a schematic longitudinal section of a steel box girder;

FIG. 1(C) is a plan view of a transverse block longitudinal section of a steel box girder;

FIG. 2(A) a jig positioning jig on the bottom plate;

FIG. 2(B) the positioning of the jig on the base plate is completed;

FIG. 2(C) the diaphragm plate begins to be positioned on the jig;

FIG. 2(D) assembling a middle web single element;

FIG. 2(E) is installed with other diaphragm and web unit pieces;

FIG. 2(F) illustrates the positioning of the panels and the welding between the structures;

FIG. 3 is a flow chart of the hoisting process

The specific implementation mode is as follows:

as shown in fig. 1(a), the steel box girder is divided into two boxes, each box is a single box, the same box cannot lack the web plates on the left and right sides, and the box with the smallest bending rigidity does not lack the web plate; as shown in fig. 1(B), the steel box girder is longitudinally segmented, and longitudinal cutting positions of the steel box girder are determined according to hoisting capacity of an on-site crane, span and pier arrangement conditions, and staggered partitioning is performed by adopting a top plate and a bottom plate during partitioning, wherein the top plate of a first hoisting part is shorter than the bottom plate, and the top plate of a second hoisting part is longer than the bottom plate, so that the first hoisting part can be used as a support of the second hoisting part during hoisting; FIG. 1(C) is a plan view of a transverse block longitudinal section of a steel box girder; the sequence of factory prefabricated hoisting units: FIG. 2(A) is a positioning jointed board of a bed jig on a bottom plate; as shown in fig. 2(B), the positioning of the jig frame on the bottom plate is completed; FIG. 2(C) shows the diaphragm plate beginning to be positioned on the jig; FIG. 2(D) is a web single element in assembly; FIG. 2(E) is the installation of other diaphragm and web unit pieces; FIG. 2(F) shows the positioning of the panels, the welding between the structures, leaving the pre-designed longitudinal segment transverse blocking positions unwelded. After welding, the hoisting unit is reinforced, and then the hoisting unit is separated from the tire. The hoisting process comprises the following steps: as shown in FIG. 3, the longitudinal direction should be chosen to be first two sides and then the middle, and the transverse direction should be chosen to be first middle and then two sides.

Claims (1)

1. A rapid construction method for transverse block longitudinal segmentation of an urban elevated steel box girder bridge is characterized by comprising the following steps:
the method comprises the following steps: determining a longitudinal segmentation transverse blocking cutting part;
determining a longitudinal cutting part of the steel box girder according to the hoisting capacity of the on-site crane, the span and the arrangement condition of the pier position; transversely partitioning the box girder according to the number of box chambers of the steel box girder, wherein each box chamber is one; when the cutting is carried out, the top plate and the bottom plate of the top plate are cut in a staggered mode, wherein the top plate of the first hoisting part is shorter than the bottom plate, the top plate of the second hoisting part is longer than the bottom plate, the first hoisting part is used as a support of the second hoisting part, and when the bending and torsional rigidity of the cross section does not meet the welding requirement, a temporary support is applied to the opening;
step two: the hoisting unit is prefabricated in a factory, the hoisting unit is spliced on a jig frame, a bottom plate, a transverse partition plate, a web plate and a top plate are sequentially assembled, the structure is welded, the transverse partitioning positions of longitudinal sections are reserved and are not welded, and then the hoisting unit is reinforced and separated from a tire;
step three: finally, hoisting and welding on site;
the hoisting sequence is that the lower part is selected first and the upper part is selected first in height, the two sides are selected first and then the middle part is selected in the longitudinal bridge direction, and the middle part is selected first and then the two sides are selected in the transverse bridge direction;
the transverse partitioning necessarily results in some chambers lacking webs, rather than the same chamber lacking both left and right side webs, and in a chamber with the least bending stiffness not lacking webs.
CN201611197317.4A 2016-12-22 2016-12-22 Rapid construction method for transverse block longitudinal segmentation of urban elevated steel box girder bridge CN107059626B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611197317.4A CN107059626B (en) 2016-12-22 2016-12-22 Rapid construction method for transverse block longitudinal segmentation of urban elevated steel box girder bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611197317.4A CN107059626B (en) 2016-12-22 2016-12-22 Rapid construction method for transverse block longitudinal segmentation of urban elevated steel box girder bridge

Publications (2)

Publication Number Publication Date
CN107059626A CN107059626A (en) 2017-08-18
CN107059626B true CN107059626B (en) 2019-12-31

Family

ID=59619835

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611197317.4A CN107059626B (en) 2016-12-22 2016-12-22 Rapid construction method for transverse block longitudinal segmentation of urban elevated steel box girder bridge

Country Status (1)

Country Link
CN (1) CN107059626B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106702902B (en) * 2015-11-18 2018-12-14 上海宝冶集团有限公司 Docking grafting construction method for hanging is put down between a kind of bridge steel box girder segment
CN108914782A (en) * 2018-08-08 2018-11-30 江苏中铁山桥重工有限公司 A kind of large size open web type highway steel box girder stayed-cable bridge manufacturing method
CN109505248A (en) * 2018-11-29 2019-03-22 上海市机械施工集团有限公司 A kind of construction method of the steel box-girder of overpass

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001348815A (en) * 2000-06-07 2001-12-21 Kidoh Construction Co Ltd Cantilever type installing construction method of bridge
CN101368373A (en) * 2008-09-19 2009-02-18 中铁大桥局股份有限公司 Long continuous structural steel box beam or combination box beam construction method
KR101249285B1 (en) * 2011-10-05 2013-04-01 주식회사 동성엔지니어링 Bridge with prestressed concrete box girder of cantilever support structure by precast bracket, and it`s construction method
CN103669216A (en) * 2013-11-21 2014-03-26 中建三局建设工程股份有限公司 Steel box girder scattered-splicing sliding device and installation method
CN104060523A (en) * 2014-05-23 2014-09-24 浙江东南网架股份有限公司 Ultra-large type bridge box girder component, dedicated jig frame and assembling method thereof
CN105040567A (en) * 2015-05-06 2015-11-11 浙江东南网架股份有限公司 Interchange steel bridge and manufacture method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001348815A (en) * 2000-06-07 2001-12-21 Kidoh Construction Co Ltd Cantilever type installing construction method of bridge
CN101368373A (en) * 2008-09-19 2009-02-18 中铁大桥局股份有限公司 Long continuous structural steel box beam or combination box beam construction method
KR101249285B1 (en) * 2011-10-05 2013-04-01 주식회사 동성엔지니어링 Bridge with prestressed concrete box girder of cantilever support structure by precast bracket, and it`s construction method
CN103669216A (en) * 2013-11-21 2014-03-26 中建三局建设工程股份有限公司 Steel box girder scattered-splicing sliding device and installation method
CN104060523A (en) * 2014-05-23 2014-09-24 浙江东南网架股份有限公司 Ultra-large type bridge box girder component, dedicated jig frame and assembling method thereof
CN105040567A (en) * 2015-05-06 2015-11-11 浙江东南网架股份有限公司 Interchange steel bridge and manufacture method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
滑移与散拼技术在钢箱梁桥施工中的综合应用;冯浩等;《公路交通科技(应用技术版)》;20131031(第10期);第12-13页 *

Also Published As

Publication number Publication date
CN107059626A (en) 2017-08-18

Similar Documents

Publication Publication Date Title
Schlaich et al. Design and detailing of structural concrete using strut-and-tie models
CN102979165B (en) Industrialized assembled multi-story high-rise steel structure centrally-braced system
CN102979177B (en) Industrialized assembled multi-story high-rise steel structure eccentrically-braced system
JP3218530U (en) Central assembly steel structure
CN102979172B (en) Industrialized assembled multi-story high-rise steel structure prestressed centrally-braced system
CN102387959B (en) Tendon controlled mobile platform
CN100507150C (en) Corrugated steel web box girder with steel-concrete combined board lower wing edges
CN102758499A (en) Precast prestressed steel girder with post-seismic restorable function
US4697397A (en) Trussed girder, roof framing using the trussed girder and method of constructing the roof framing of a building using the trussed girder
CN103938549B (en) The construction method of the oblique web combination beam of assembled waveform steel
CN103911956B (en) A kind of large span stayed-cable bridge steel truss girder mounting method
CN102828564B (en) Sound insulation module and sound absorption and insulation composite structure of embedded truss structure with sound insulation module
CN102392536B (en) Construction method for long-span hanging vestibule type template support system
CN102979171A (en) Industrialized assembled multi-story high-rise steel structure frame system
CN103161126A (en) Road bridge variable section hollow high pier slip-form construction method
CN102121234B (en) Quick construction method of two-tower five-span steel truss girder cable-stayed bridge
JP5266291B2 (en) Construction method of bridge deck and joint structure of precast deck
CN104762871A (en) Prestressed concrete-steel tank beam bond beam continuous beam bridge
CN103255726B (en) A kind of construction method of continuous beam arch combination bridge
CN103233551A (en) Fabricated honeycomb web steel beam
Mosallam et al. Polymer composites in construction: an overview
CN102979173B (en) Industrialized assembled multi-story high-rise steel structure prestressed eccentrically-braced system
CN104358211A (en) Beam bottom overhaul platform capable of spanning bridge piers and obstacle pillars and use method of beam bottom overhaul platform
CN103243838A (en) Connection structure of integrally assembled concrete frame and shear wall
CN107386435A (en) The assembled of prestressed node connection can recover function steel frame support system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant