CN107130521A - A kind of dell precipice section large-section beam Bailey truss hoisting die construction method - Google Patents

A kind of dell precipice section large-section beam Bailey truss hoisting die construction method Download PDF

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Publication number
CN107130521A
CN107130521A CN201710385016.2A CN201710385016A CN107130521A CN 107130521 A CN107130521 A CN 107130521A CN 201710385016 A CN201710385016 A CN 201710385016A CN 107130521 A CN107130521 A CN 107130521A
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China
Prior art keywords
steel
double flute
flute steel
bailey truss
suspension rod
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CN201710385016.2A
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CN107130521B (en
Inventor
何昌杰
高峰奇
曾喜安
蒋立红
林冰
吴智
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China Construction Fifth Bureau Third Construction Co Ltd
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China Construction Fifth Bureau Third Construction Co Ltd
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Publication of CN107130521A publication Critical patent/CN107130521A/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

A kind of dell precipice section large-section beam Bailey truss hoisting die construction method, in turn include the following steps, splicing lifts beret truss, made with installing top double flute steel, installing suspension rod, installation bottom channel-section steel, laying distribution beam, seating side guard rail, laydown, template, the present invention, which is one, can effectively solve that because with a varied topography, height is too high a kind of Bailey truss hoisting die construction method of landing support can not be laid, the present invention adapts to that all are with a varied topography, in large-span structure engineering.

Description

A kind of dell precipice section large-section beam Bailey truss hoisting die construction method
Technical field
The present invention relates to a kind of dell precipice section large-section beam Bailey truss hoisting die construction method.
Background technology
With building trade development and meet complex building requirement.Bridges and culverts, large-span structure, larger high ordertransfer structure Part is increasing.The discrepancy in elevation is big greatly, from the ground for cast-in-situ steel reinforced concrete beam span of these components employed in work progress.Branch The selection of support form need to meet technically feasible, reasonable in economy, ensure in safety, condition optimal on the duration.Yet with Height is too high from the ground for structure, is limited by landform, geology and transportation condition, arrangement is complicated, stress is larger, it is impossible to by tradition Mode is arranged.Therefore it is particularly important using which kind of support system in work progress.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides one kind and can be applied to a varied topography and can not set up landing support, While the simple dell precipice section large-section beam Bailey truss hoisting die construction method of constructing operation.
Beret truss is lifted including splicing, made with installing top double flute steel, installing suspension rod, installation bottom channel-section steel, laying point With beam, seating side guard rail, laydown, template, it is characterised in that:Specific construction step is as follows:
(1) splicing lifting beret truss,
A number of beret truss, which is chosen, according to structural span in structure design drawing passes through the assembled formation of connecting pin progress Bailey truss, Bailey truss is hung to the reinforced beam top for having poured shaping by tower crane, and it is big that Bailey truss sets up length In the deck-siding equal to reinforced beam, expansion bolt is installed in drilling on reinforced beam, and Bailey truss is passed through into U-shaped armful Hoop and expansion bolt are fixed on reinforced beam;
(2) make with installing double flute steel,
The making that place carries out top double flute steel and bottom double flute steel is processed in material while Bailey truss is set up, on Portion's double flute steel and bottom double flute steel are constituted by two same size channel-section steels, and hole, channel-section steel and channel-section steel are reserved between two channel-section steels Between carry out being welded to connect fixation using steel plate washer, the steel cushion block of top double flute steel and bottom double flute steel can provided with corresponding The hole passed through for suspension rod, after Bailey truss sets up and finished, Bailey truss top, top double flute are hoisted to by top double flute steel It is welded and fixed between steel and Bailey truss top flange;
(3) suspension rod is installed,
According to structural stress analysis, the high-strength bolt of appropriate diameter is chosen as suspension rod, the length of suspension rod is determined according to design Degree, indicates the installation site of top double flute steel and bottom double flute steel, during installation, suspension rod is between the double flute steel of top on suspension rod Hole on steel cushion block is passed through so that top double flute steel is placed in the installation marker location of suspension rod, then by nut by suspension rod with Top double flute steel is fixed;
(4) bottom double flute steel is installed,
After the completion of hanger erection, safe steel cat ladder is installed at Bailey truss as easy operation platform, then carried out Bottom double flute steel, the bottom of Bailey truss is transported to by tower crane, using hawser so that suspension rod is passed through by the installation of bottom double flute steel Hole between the double flute steel of bottom on steel cushion block so that bottom double flute steel is placed in the installation marker location of suspension rod, then passes through nut Suspension rod is fixed with bottom double flute steel;
(5) distribution beam is laid,
After all bottom double flute steel are installed in place, the upside laying distribution beam of double flute steel in bottom;
(6) seating side guard rail,
On distribution beam top, scaffold is set up, and sets up and goes along with sb. to guard him, all go along with sb. to guard him is closed using Dense mesh screen, and is going along with sb. to guard him Upper setting anti-drop net;
(7) laydown, template,
Cast-in-situ Beam position, laydown installation form are made in distribution beam.
In step (1), Bailey truss uses 321 beret truss, and beret truss sectional dimension is 1.5 meters high to be 3 meters long.
In step (2), the steel plate washer is laid along channel-section steel bearing of trend and arranges that spacing is 1m~1.5m.
In step (5), distribution beam is made up of the laying of I-steel, and the I-steel is welded and fixed with bottom double flute steel.
In step (6), set up 1.2 meters high facing and steel pipe cat ladder, and laying step plate, pin are set up in skirt shield, scaffold Hand cradle completely spreads bamboo fragrant plant piece, and vertically setting one of anti-drop net every 10 meters as construction operation platform.
The present invention solves that because with a varied topography landing support body can not be used by using Bailey truss hoisting die construction technology The situation of system.The Bailey truss that hoisting die construction is formed by connecting by pin using beret truss is upper support structure, and substructure is adopted Use double flute steel.Up-down structure is attached using high-strength bolt as suspension rod by bolt.Finally steel plate is consolidated as baffle plate is hung It is scheduled on and stable Bailey truss is constituted on channel-section steel hangs mould support system.It is mainly characterized by reducing that lower support system, progress are fast, throw Money is relatively small, ensure construction quality, and the construction difficult problem of landing support can not be arranged well because with a varied topography by solving.Due to group Accessory into Bailey truss is processed in factory floor, dimensional discrepancy very little, and itself has very big rigidity, is transported to construction Scene, which is assembled, can just turn into Bailey truss, and length is determined according to cast-in-place beam length.Therefore, this hoisting die construction method safety Reliably, easy construction.
In summary, the present invention, which is one, can effectively solve that because with a varied topography, height is too high landing support can not be laid A kind of Bailey truss hoisting die construction method, the present invention adapts to that all are with a varied topography, in large-span structure engineering.
Brief description of the drawings
Fig. 1 is the positive facade overall schematic of Bailey truss using the formation of this construction method.
Fig. 2 is the Bailey truss side elevation overall schematic using the formation of this construction method.
Fig. 3 is Bailey truss of the present invention, suspension rod, double flute steel connection diagram.
Fig. 4 is screw rod of the present invention and double flute steel connection diagram.
Fig. 5 is double flute steel schematic diagram of the present invention;
Each label is represented in figure:1st, high-strength bolt;2nd, nut;3rd, steel cushion block;4th, double flute steel;5th, Bailey truss;6th, Bei Lei Support bearing;7th, crosshead;8th, distribution beam;9th, template;10th, cast-in-situ concrete beam;11st, steel pipe frame column support system.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples.Following circumferences refer to the week along tunnel To, axially refer to along tunnel axial direction.
Fig. 1 to Fig. 5 shows the implementation figure of the dell precipice section large-section beam Bailey truss hoisting die construction method of the present invention, It comprises the following steps:
(1) splicing lifting beret truss,
Hoisting die construction uses 321 beret truss (reinforced), and standard beret truss sectional dimension is 1.5 meters high to be 3 meters long.Foundation Structural span chooses a number of beret truss and carries out assembly by connecting pin in structure design drawing.Referring to Fig. 1, it will finally spell The Bailey truss 5 installed is hung to the top of reinforced beam 6 for having poured shaping by tower crane, and reinforced beam 6 is supported on On steel pipe frame column support system 11, Bailey truss sets up length more than or equal to deck-siding, and expanding screw is installed in drilling on beam in advance Bolt, Bailey truss is fixed on beam by U-shaped anchor ear and expansion bolt.
(2) make with installing double flute steel,
While Bailey truss is set up the making that place carries out double flute steel is processed in material.Referring to Fig. 5, double flute steel 4 is by two Root same size channel-section steel is constituted, and hole is reserved between two channel-section steels, is reliably welded using steel cushion block 3 between channel-section steel and channel-section steel Connect, steel cushion block arrangement spacing is 1m~1.5m.The hole for being available for suspension rod to pass through is reserved using rig in advance on steel cushion block.In shellfish thunder Support, which is set up, to be finished and after double flute steel performs, and double flute steel is hoisted into Bailey truss top, double flute steel 4 and Bailey truss 5 It is welded and fixed between top flange.
(3) suspension rod is installed,
According to structural stress analysis, the high-strength bolt 1 of appropriate diameter is chosen as suspension rod, field technician measures Calculate, determine the length of suspension rod.In advance on suspension rod with it is red paint indicate above and below channel-section steel particular location, lifted afterwards. During installation, referring to Fig. 3, the hole that suspension rod 1 is reserved through top double flute steel 4 in steel cushion block 5 uses spiral shell on steel cushion block top Mother 2 is fixed.
(4) bottom channel-section steel is installed,
Referring to Fig. 1, after the installation of suspension rod 1, safe steel cat ladder is installed at the Bailey truss of top as easily applying Work platform, carries out the installation of bottom double flute steel, and double flute steel 4 is transported into the bottom of Bailey truss 5, staff's profit using tower crane first Double flute steel is passed through into screw rod with hawser, referring to Fig. 4, technical staff is fixed on by nut 2 by double flute steel both sides and indicated in advance Good position.
(5) distribution beam is laid,
Referring to Fig. 2, after all bottom double flute steel are installed in place, I-shaped is allocated on request on the top of double flute steel 4 The laying of steel 8, is fixed between I-steel 8 and bottom double flute steel 4 in the form of welding.
(6) seating side guard rail,
Referring to Fig. 2, on the top of distribution beam 8, pin hand is set up in structural beams both sides, and 7, steel pipe cat ladder, and paving are set up in scaffold If step plate, convenient construction personnel walk up and down, and scaffold completely spreads bamboo fragrant plant piece, and take using steel pipe as construction operation platform If 1.2 meters high face skirt shield, all go along with sb. to guard him is closed using Dense mesh screen, and is vertically setting one of anti-drop net every 10 meters.
(7) laydown, laying template,
Referring to Fig. 2, unwrapping wire makes the position of Cast-in-situ Beam 10 in distribution beam 8, and laydown installation form 9 is finally carried out Beams of concrete 10 is poured.

Claims (5)

1. a kind of dell precipice section large-section beam Bailey truss hoisting die construction method, including splicing lifting beret truss, making and peace Portion's double flute steel is loaded onto, suspension rod is installed, bottom channel-section steel, laying distribution beam, seating side guard rail, laydown, template are installed, It is characterized in that:Specific construction step is as follows:
(1) splicing lifting beret truss,
A number of beret truss, which is chosen, according to structural span in structure design drawing passes through the assembled formation shellfish thunder of connecting pin progress Support, Bailey truss is hung to the reinforced beam top for having poured shaping by tower crane, and drill peace on reinforced beam Expansion bolt is filled, Bailey truss is fixed on reinforced beam;
(2) make with installing double flute steel,
The making that place carries out top double flute steel and bottom double flute steel is processed in material while Bailey truss is set up, top is double Channel-section steel and bottom double flute steel are constituted by two same size channel-section steels, hole are reserved between two channel-section steels, between channel-section steel and channel-section steel Carry out being welded to connect fixation using steel plate washer, the steel cushion block of top double flute steel and bottom double flute steel is available for hanging provided with corresponding The hole that bar is passed through, after Bailey truss sets up and finished, Bailey truss top is hoisted to by top double flute steel, top double flute steel with Bailey truss is welded and fixed between top flange;
(3) suspension rod is installed,
According to structural stress analysis, the high-strength bolt of appropriate diameter is chosen as suspension rod, the length of suspension rod is determined according to design, The installation site of top double flute steel and bottom double flute steel is indicated on suspension rod, during installation, suspension rod is from steel pad between the double flute steel of top Hole on block is passed through so that top double flute steel is placed in the installation marker location of suspension rod, then by nut by suspension rod and top Double flute steel is fixed;
(4) bottom double flute steel is installed,
After the completion of hanger erection, safe steel cat ladder is installed at Bailey truss as easy operation platform, bottom is then carried out Bottom double flute steel, the bottom of Bailey truss is transported to by tower crane by the installation of double flute steel, using hawser so that suspension rod passes through bottom Hole between double flute steel on steel cushion block so that bottom double flute steel is placed in the installation marker location of suspension rod, then will be hung by nut Bar is fixed with bottom double flute steel;
(5) distribution beam is laid,
After all bottom double flute steel are installed in place, the upside laying distribution beam of double flute steel in bottom;
(6) seating side guard rail,
On distribution beam top, scaffold is set up, and sets up and goes along with sb. to guard him, all go along with sb. to guard him is closed using Dense mesh screen, and is set on going along with sb. to guard him Put anti-drop net;
(7) laydown, template,
Cast-in-situ Beam position, laydown installation form are made in distribution beam.
2. dell precipice section large-section beam Bailey truss hoisting die construction method according to claim 1, it is characterised in that:Step Suddenly in (1), Bailey truss uses 321 beret truss, and beret truss sectional dimension is 1.5 meters high to be 3 meters long.
3. dell precipice section large-section beam Bailey truss hoisting die construction method according to claim 1, it is characterised in that:Step Suddenly in (2), the steel plate washer is laid along channel-section steel bearing of trend and arranges that spacing is 1m~1.5m.
4. dell precipice section large-section beam Bailey truss hoisting die construction method according to claim 1, it is characterised in that:Step Suddenly in (5), distribution beam is made up of the laying of I-steel, and the I-steel is welded and fixed with bottom double flute steel.
5. dell precipice section large-section beam Bailey truss hoisting die construction method according to claim 1, it is characterised in that:Step Suddenly in (6), set up it is 1.2 meters high face steel pipe cat ladder is set up in skirt shield, scaffold, and laying step plate, scaffold is as applying Work operating platform, completely spreads bamboo fragrant plant piece, and vertically setting one of anti-drop net every 10 meters.
CN201710385016.2A 2017-05-26 2017-05-26 A kind of dell precipice section large-section beam Bailey truss hoisting die construction method Active CN107130521B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109457814A (en) * 2018-11-15 2019-03-12 李延敏 Towering and major diameter building top cover construction method based on Bailey bracket structure
CN112093704A (en) * 2020-09-09 2020-12-18 厦门安科科技有限公司 Hanging device for jacking formwork system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080099543A (en) * 2007-05-09 2008-11-13 동명공영건설(주) Formwork assembly for a bridge
CN202688888U (en) * 2012-07-17 2013-01-23 中交第二公路工程局有限公司 Deck type reversely hung template hanging frame
CN103835238A (en) * 2014-02-21 2014-06-04 中铁大桥局股份有限公司 High-pier cable-stayed bridge zero-number block non-bracket construction method and structure in construction process
CN104141383A (en) * 2014-07-16 2014-11-12 北京万兴建筑集团有限公司 Bailey beam suspension formwork supporting system and construction method thereof
CN105133497A (en) * 2015-07-21 2015-12-09 杭州江润科技有限公司 Construction method for diagonal-span low-clearance road-on-duty multi-azimuth adjustable cast-in-place box beam support system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080099543A (en) * 2007-05-09 2008-11-13 동명공영건설(주) Formwork assembly for a bridge
CN202688888U (en) * 2012-07-17 2013-01-23 中交第二公路工程局有限公司 Deck type reversely hung template hanging frame
CN103835238A (en) * 2014-02-21 2014-06-04 中铁大桥局股份有限公司 High-pier cable-stayed bridge zero-number block non-bracket construction method and structure in construction process
CN104141383A (en) * 2014-07-16 2014-11-12 北京万兴建筑集团有限公司 Bailey beam suspension formwork supporting system and construction method thereof
CN105133497A (en) * 2015-07-21 2015-12-09 杭州江润科技有限公司 Construction method for diagonal-span low-clearance road-on-duty multi-azimuth adjustable cast-in-place box beam support system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109457814A (en) * 2018-11-15 2019-03-12 李延敏 Towering and major diameter building top cover construction method based on Bailey bracket structure
CN112093704A (en) * 2020-09-09 2020-12-18 厦门安科科技有限公司 Hanging device for jacking formwork system

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