CN105350458A - Construction method of composite structure platform for construction of Y-shaped pier of bridge - Google Patents

Construction method of composite structure platform for construction of Y-shaped pier of bridge Download PDF

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Publication number
CN105350458A
CN105350458A CN201510785177.1A CN201510785177A CN105350458A CN 105350458 A CN105350458 A CN 105350458A CN 201510785177 A CN201510785177 A CN 201510785177A CN 105350458 A CN105350458 A CN 105350458A
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CN
China
Prior art keywords
steel
type
column
built
type pier
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CN201510785177.1A
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Chinese (zh)
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CN105350458B (en
Inventor
周俊龙
高璞
余流
王安鑫
刘跃武
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中国建筑第六工程局有限公司
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Priority to CN201510785177.1A priority Critical patent/CN105350458B/en
Publication of CN105350458A publication Critical patent/CN105350458A/en
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    • 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

Abstract

The invention discloses a mounting method of a composite structure platform for construction of a Y-shaped pier of a bridge. The method comprises the following steps that (1) a plurality of vertical pre-embedded steel plates are arranged on the left side and the right side of a bearing platform formwork at intervals respectively, and a plurality of horizontal pre-embedded steel plates are arranged on the top faces of the positions, on the left side and the right side of a stand column of the Y-shaped pier to be poured, of the bearing platform formwork at intervals respectively; (2) a bearing platform is poured; (3) a plurality of section steel beams are erected on the two sides of the stand column of the Y-shaped pier to be poured respectively; (4) the stand column of the Y-shaped pier is poured; (5) the bottom ends of a plurality of concrete-filled steel tube inclined struts are welded and connected to the vertical pre-embedded steel plates and the horizontal pre-embedded steel plates respectively, and the other ends of the concrete-filled steel tube inclined struts are welded to the correspondingly-arranged section steel beams respectively; (6) bailey beams and distribution beams are sequentially laid on the section steel beams on the same side; and (7) Y-shaped pier formwork supporting frames are distributed on the distribution beams on the left side and the right side respectively. According to the method, the shear strength of concrete is greatly improved.

Description

A kind of construction method of bridge Y type pier construction combining structure platform
Technical field
The present invention relates to field of bridge construction, relate in particular to a kind of bridge Y type pier construction combining structure platform and mounting method thereof.
Background technology
At present, known Y type bridge construction platform has various ways, but all there is certain problem.Generally be not suitable for Muddy Bottoms covering layer blocked up and compared with the geological conditions of hard formation, can not effectively utilize the intensity of pier shaft to transmit vertical load, rear support of having constructed removes difficulty, the bottom generally can only be adopted to cut off, larger waste is produced to material, and cannot cut off at the bottom under navigation requires high condition, universality is poor, can not play the load-carrying properties of steel platform to greatest extent.
The construction method of the great-angle Y type pier stud that publication No. CN104746435A announces have employed a large amount of steel tube pile structures and slant-pull structure system, need to carry out a large amount of piling constructions, and steel using amount is large.After the construction of Y type pier terminates, steel pipe pile is not easily pulled out, and can only adopt the mode of excision, cause waste of material.
The concrete structure formwork bracing frame of the bridge V-type bridge pier that publication No. CN202390763U announces, the V-type bracing frame that it adopts is the method for carrying out bent cap concrete structure construction after the construction of V limb, effectively can not apply and construct with V limb.
The pouring construction method of a kind of wide-angle V-type pier that publication No. C102888815A and CN202954299U announces and 0# block case beam needs to lay a large amount of support, and material consumption is large, also needs to process ground.
A kind of Y type pier formwork and formwork supports system that publication No. CN203007846U announces and the V type pier inclined leg combined type support for continuous rigid frame bridge that publication No. CN101481902A announces and layered cast-in-situ construction method, it sets up the fender post depending on pontic and the drilled pile set separately, and lay multiple tracks to lacing wire, support and connection are complicated, make program bad adaptability in implementation process, enforcement difficulty is large, inapplicable with fender post is not set and does not establish the suspended deck structure of drilled pile.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, provide a kind of installation effectiveness high, little on inherent structure impact, applicability is strong, the construction method of the bridge Y type pier construction combining structure platform that bearing capacity is large.
For achieving the above object, the present invention adopts following technical proposals:
The mounting method of a kind of bridge Y type pier construction combining structure platform of the present invention, it comprises the following steps:
(1) in the left and right sides of cushion cap template, multiple vertical pre-embedded steel slab be set along the longitudinal interval respectively of cushion cap and on the end face of the cushion cap template of the column left and right sides of Y type pier to be built, multiple horizontal pre-embedded steel slab be set along the longitudinal interval respectively of cushion cap;
(2) in cushion cap template, cushion cap is built;
(3) install many root type girder steel of equal altitudes in the column both sides of Y type pier to be built respectively in the horizontal direction and make the inner side of described many root type girder steel be located in the column of Y type pier to be built, then through the reinforced hole that the edge of a wing inside the corresponding section steel beam arranged and web are preset, section steel beam being connected with the reinforcing bar of the column of Y type pier the reinforcing bar of the column of Y type pier to be built;
(4) column of Y type pier is built;
(5) when the concrete strength of the column of Y type pier reaches requirement, many concrete filled steel tube diagonal brace bottoms to be welded to connect respectively on vertical pre-embedded steel slab and horizontal pre-embedded steel slab and the other end is welded on the corresponding section steel beam arranged respectively;
(6) on many root type girder steel of the homonymy supported, lay Bailey beam, described Bailey beam and section steel beam take spot welding and securing member to be fixed;
(7) in Bailey beam described in the left and right sides, lay distribution beam respectively, described distribution beam and Bailey beam adopt securing member and spot welding to be connected;
(8) the outer wall shape respectively according to Y type socle V-arrangement to be built in the distribution beam of the left and right sides lays Y type pier formwork-support.
Employing the invention has the beneficial effects as follows:
(1) platform to be supported on cushion cap eventually through concrete filled steel tube diagonal brace and to be connected with pier stud by pre-buried mode, and to the not requirement of underlying geological condition, assembling and disassembling is convenient, and steel using amount is few, easy construction;
(2) concrete filled steel tube has good mechanical property, has better compressive property compared to traditional steel pipe support structure.
(3) the original reinforcing bar of pillarwork can pass from the reinforced hole of section steel beam, can not impact because of the laying of the pre-buried connection of section steel beam to the intrinsic reinforcing bar of structure;
(4) offer the ductility that the reinforcing bar penetrated in the section steel beam edge of a wing of reinforced hole, web improves anchor structure, avoid the brittle fracture of anchor system;
(5), in casting process, the concrete performance of tapping can improve, and substantially increases concrete shear strength;
(6) this combined system is applicable to the battered leg pouring construction platform of the known Y type pier of pier shaft height, battered leg angle arbitrarily at present, and intensity is high, flexible arrangement.
Accompanying drawing explanation
Fig. 1 is the elevation of the bridge Y type pier structure adopting the mounting method of a kind of bridge Y of the present invention type pier construction combining structure platform to build;
Fig. 2 is the work progress elevation of the mounting method of a kind of bridge Y type pier construction combining structure platform of the present invention;
Fig. 3 buries the detail structure figure of region A underground for the section steel beam shown in Fig. 2.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The construction method of a kind of bridge Y type pier construction combining structure platform of the present invention, it comprises the following steps:
(1) in the left and right sides of cushion cap template, multiple vertical pre-embedded steel slab 8 be set along the longitudinal interval respectively of cushion cap and on the end face of the cushion cap template of column 2 left and right sides of Y type pier to be built, multiple horizontal pre-embedded steel slab 9 be set along the longitudinal interval respectively of cushion cap;
(2) in cushion cap template, cushion cap 1 is built;
(3) install many root type girder steel 4 of equal altitudes in column 2 both sides of Y type pier to be built respectively in the horizontal direction and make the inner side of described many root type girder steel 4 be located in the column 2 of Y type pier to be built, then through the reinforced hole 11 that the edge of a wing inside the corresponding section steel beam 4 arranged and web are preset, section steel beam 4 being connected with the reinforcing bar 10 of the column 2 of Y type pier the reinforcing bar 10 of the column 2 of Y type pier to be built;
(4) column 2 of Y type pier is built;
(5) when the concrete strength of the column 2 of Y type pier reaches requirement, many concrete filled steel tube diagonal brace 3 bottoms to be welded to connect respectively on vertical pre-embedded steel slab 8 and horizontal pre-embedded steel slab 9 and the other end is welded on the corresponding section steel beam 4 arranged respectively;
(6) on many root type girder steel 4 of the homonymy supported, lay Bailey beam 5, described Bailey beam 5 takes spot welding and securing member to be fixed with section steel beam 4;
(7) in Bailey beam described in the left and right sides 5, lay distribution beam 6 respectively, described distribution beam 6 and Bailey beam 4 adopt securing member and spot welding to be connected;
(8) the outer wall shape respectively according to Y type socle V-arrangement to be built in left and right sides distribution beam 6 lays Y type pier formwork-support 7.
The structure of the bridge Y type pier construction combining structure platform adopting the inventive method to build comprises: be arranged at intervals with multiple vertical pre-embedded steel slab 8 respectively in the left and right sides of cushion cap 1 and be longitudinally arranged at intervals with multiple horizontal pre-embedded steel slab 9 respectively along cushion cap on the end face of the cushion cap of column 2 left and right sides of Y type pier, install many root type girder steel 4 of equal altitudes in column 2 both sides of described Y type pier respectively in the horizontal direction and make the inner side of described many root type girder steel 4 be located in the column 2 of Y type pier, the reinforcing bar 10 of the column 2 of described Y type pier makes section steel beam 4 be connected with the reinforcing bar 10 of the column 2 of Y type pier through the reinforced hole 11 that the edge of a wing inside the corresponding section steel beam 4 arranged and web are preset, many concrete filled steel tube diagonal brace 3 bottoms are welded to connect respectively on vertical pre-embedded steel slab 8 and horizontal pre-embedded steel slab 9 and the other end is welded on the corresponding section steel beam 4 arranged respectively, many root type girder steel 4 of homonymy is fixed with Bailey beam 5, Bailey beam described in the left and right sides 5 is fixed with distribution beam 6 respectively, left and right sides distribution beam 6 is laid with Y type pier formwork-support 7 according to Y type socle V-arrangement outer wall shape to be built respectively.
Embodiment 1
(1) in the left and right sides of cushion cap template, multiple vertical pre-embedded steel slab 8 be set along the longitudinal interval respectively of cushion cap and on the end face of the cushion cap template of column 2 left and right sides of Y type pier to be built, multiple horizontal pre-embedded steel slab 9 be set along the longitudinal interval respectively of cushion cap;
(2) in cushion cap template, cushion cap 1 is built;
(3) install many root type girder steel 4 of equal altitudes in column 2 both sides of Y type pier to be built respectively in the horizontal direction and make the inner side of described many root type girder steel 4 be located in the column 2 of Y type pier to be built, then through the reinforced hole 11 that the edge of a wing inside the corresponding section steel beam 4 arranged and web are preset, section steel beam 4 being connected with the reinforcing bar 10 of the column 2 of Y type pier the reinforcing bar 10 of the column 2 of Y type pier to be built;
(4) column 2 of Y type pier is built;
(5) when the concrete strength of the column 2 of Y type pier reaches requirement, many concrete filled steel tube diagonal brace 3 bottoms to be welded to connect respectively on vertical pre-embedded steel slab 8 and horizontal pre-embedded steel slab 9 and the other end is welded on the corresponding section steel beam 4 arranged respectively;
(6) on many root type girder steel 4 of the homonymy supported, lay Bailey beam 5, described Bailey beam 5 takes spot welding and securing member to be fixed with section steel beam 4;
(7) in Bailey beam described in the left and right sides 5, lay distribution beam 6 respectively, described distribution beam 6 and Bailey beam 4 adopt securing member and spot welding to be connected;
(8) the outer wall shape respectively according to Y type socle V-arrangement to be built in left and right sides distribution beam 6 lays Y type pier formwork-support 7.
Be support to build the concrete of Y type pier with Y type pier formwork-support 7.Concrete filled steel tube has good mechanical property after testing, has better compressive property compared to traditional steel pipe support structure.

Claims (1)

1. a bridge Y type pier construction mounting method for combining structure platform, is characterized in that it comprises the following steps:
(1) in the left and right sides of cushion cap template, multiple vertical pre-embedded steel slab be set along the longitudinal interval respectively of cushion cap and on the end face of the cushion cap template of the column left and right sides of Y type pier to be built, multiple horizontal pre-embedded steel slab be set along the longitudinal interval respectively of cushion cap;
(2) in cushion cap template, cushion cap is built;
(3) install many root type girder steel of equal altitudes in the column both sides of Y type pier to be built respectively in the horizontal direction and make the inner side of described many root type girder steel be located in the column of Y type pier to be built, then through the reinforced hole that the edge of a wing inside the corresponding section steel beam arranged and web are preset, section steel beam being connected with the reinforcing bar of the column of Y type pier the reinforcing bar of the column of Y type pier to be built;
(4) column of Y type pier is built;
(5) when the concrete strength of the column of Y type pier reaches requirement, many concrete filled steel tube diagonal brace bottoms to be welded to connect respectively on vertical pre-embedded steel slab and horizontal pre-embedded steel slab and the other end is welded on the corresponding section steel beam arranged respectively;
(6) on many root type girder steel of the homonymy supported, lay Bailey beam, described Bailey beam and section steel beam take spot welding and securing member to be fixed;
(7) in Bailey beam described in the left and right sides, lay distribution beam respectively, described distribution beam and Bailey beam adopt securing member and spot welding to be connected;
(8) the outer wall shape respectively according to Y type socle V-arrangement to be built in the distribution beam of the left and right sides lays Y type pier formwork-support.
CN201510785177.1A 2015-11-16 2015-11-16 Construction method of composite structure platform for construction of Y-shaped pier of bridge CN105350458B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821770A (en) * 2016-04-01 2016-08-03 上海城建市政工程(集团)有限公司 Connecting and locating method for multiple tower roots and large-size concrete bearing platform foundation of steel structure main tower
CN105951607A (en) * 2016-07-06 2016-09-21 苏文藏 Reinforced V-shaped bridge pier bracket

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Publication number Priority date Publication date Assignee Title
JP2000045229A (en) * 1998-07-28 2000-02-15 Nishimatsu Constr Co Ltd Constructing method of bridge
CN101200877A (en) * 2007-12-24 2008-06-18 贵州省桥梁工程总公司 Non-support construction process for triangle frame
CN202323772U (en) * 2011-12-02 2012-07-11 中国建筑第七工程局有限公司 Upside-down hanging construction device for steel stranded wires of bridge V-shaped support
CN102888815A (en) * 2012-10-16 2013-01-23 上海城建市政工程(集团)有限公司 Pouring construction method of wide-angle V-shaped pier and 0# box girder
CN203007846U (en) * 2012-12-19 2013-06-19 中铁十局集团第三建设有限公司 Y-type block template and support system
CN104746435A (en) * 2015-04-03 2015-07-01 中国建筑第六工程局有限公司 Wide-angle Y-shaped pier column construction method

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JP2000045229A (en) * 1998-07-28 2000-02-15 Nishimatsu Constr Co Ltd Constructing method of bridge
CN101200877A (en) * 2007-12-24 2008-06-18 贵州省桥梁工程总公司 Non-support construction process for triangle frame
CN202323772U (en) * 2011-12-02 2012-07-11 中国建筑第七工程局有限公司 Upside-down hanging construction device for steel stranded wires of bridge V-shaped support
CN102888815A (en) * 2012-10-16 2013-01-23 上海城建市政工程(集团)有限公司 Pouring construction method of wide-angle V-shaped pier and 0# box girder
CN203007846U (en) * 2012-12-19 2013-06-19 中铁十局集团第三建设有限公司 Y-type block template and support system
CN104746435A (en) * 2015-04-03 2015-07-01 中国建筑第六工程局有限公司 Wide-angle Y-shaped pier column construction method

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Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821770A (en) * 2016-04-01 2016-08-03 上海城建市政工程(集团)有限公司 Connecting and locating method for multiple tower roots and large-size concrete bearing platform foundation of steel structure main tower
CN105951607A (en) * 2016-07-06 2016-09-21 苏文藏 Reinforced V-shaped bridge pier bracket

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Effective date of registration: 20190314

Address after: 402260 Third Floor, No. 599 Qingqi Road, Binjiang New Town, Jiangjin District, Chongqing

Co-patentee after: China Construction Sixth Engineering Bureau Co., Ltd.

Patentee after: Zhongjian Bridge Co., Ltd.

Address before: 300451 No. 72 Hangzhou Road, Tanggu District, Tianjin

Patentee before: China Construction Sixth Engineering Bureau Co., Ltd.

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