CN109944160A - A kind of separate type opening combinations beam concrete slab overlapping accuracy control method - Google Patents

A kind of separate type opening combinations beam concrete slab overlapping accuracy control method Download PDF

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Publication number
CN109944160A
CN109944160A CN201910037597.XA CN201910037597A CN109944160A CN 109944160 A CN109944160 A CN 109944160A CN 201910037597 A CN201910037597 A CN 201910037597A CN 109944160 A CN109944160 A CN 109944160A
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CN
China
Prior art keywords
steel
bed die
prefabricated board
guarantee
precision
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Application number
CN201910037597.XA
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Chinese (zh)
Inventor
庄世忠
李义成
刘旺光
华乐
李硕
朱新华
孙蕾蕾
吴江波
王岁利
Original Assignee
中铁宝桥集团有限公司
中铁宝桥(扬州)有限公司
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Priority to CN201910037597.XA priority Critical patent/CN109944160A/en
Publication of CN109944160A publication Critical patent/CN109944160A/en

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Abstract

The present invention relates to a kind of separate type opening combinations beam concrete slabs to overlap accuracy control method, according to concrete bridge deck prefabricated board structure type, design finishing prefabricated mould, bed die need to guarantee whole flatness, and it is equipped with the locating notch of positioning with the pre-buried steel member of girder steel butt welding, side form is equipped with the notch for being accurately positioned reinforcing bar and presstressed reinforcing steel, and bed die upper surface surrounding threshold marker is used to position the reference line in length and breadth of pre-buried steel member and side form, forms SURVEYING CONTROL NETWORK;Baseline is accurately positioned steel member and prestressed, reinforced muscle using mold and in length and breadth, guarantee pre-buried steel member and bed die upper surface integral planar degree, guarantee side form and bed die verticality and whole outer profile size after carry out subsequent concreting, maintenance etc. and construct, it is ensured that the overall dimensions of prefabricated board, built-in fitting, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction.

Description

A kind of separate type opening combinations beam concrete slab overlapping accuracy control method
Technical field
The present invention relates to one kind for the steel reinforced concretes combination beam band pre-buried steel concrete members bridge floor such as large-scale cable-stayed bridge, suspension bridge The accuracy control method of prefabricated board and separate type open steel girder overlapping.
Background technique
Steel reinforced concrete combination beam uses concrete slab, and relatively traditional steel box-girder is with rigidity is big, steel using amount is few, avoids biography Steel bridge deck fatigue problem of uniting and deck paving problem easy to damage, increasingly by the favor of builder, in recent years in China It quickly grows.Steel reinforced concrete combination beam largely uses the cast-in-place molding directly on girder steel, concrete slab precision in conjunction with girder steel Control is relatively easy.But the open steel girder of the concrete bridge deck prefabricated board and separate type with pre-buried steel member overlapping is integral Then extremely difficult, be mainly shown as two aspects: the concrete slab first with pre-buried steel member will be realized to be opened with separate type The girder steel of mouth accurately matches, it is necessary to assure the prefabricated precision of concrete slab reaches the required precision of structure steel fabrication;Secondly Concrete slab is to grow up component, quality weight, and rigidity is small before the open steel beam bridge panel of separate type overlaps, floorings and its Spelling precision controlling difficulty is high.
Summary of the invention
Purpose of design: avoiding the shortcoming in background technique, for the steel reinforced concretes combination beam band such as large-scale cable-stayed bridge, suspension bridge The concrete bridge deck prefabricated board of prefabricated steel member is prefabricated and design feature with girder steel spelling precision controlling difficulty, provides a kind of work Factory, standardized complete Construction precision control method.Precision controlling target not only may be implemented in it, but also can be improved and apply Work effect reduces construction cost.
Design scheme: in order to realize above-mentioned purpose of design.Separate type opening combinations beam concrete slab overlaps precision control Method processed, the prefabricated precision controlling of the concrete slab of (1) with pre-buried steel member: according to concrete bridge deck prefabricated board structure shape Formula, design finishing prefabricated mould, bed die need to guarantee whole flatness, and be equipped with positioning and girder steel butt welding pre-buried steel structure The locating notch of part, side form are equipped with the notch for being accurately positioned reinforcing bar and presstressed reinforcing steel, and bed die upper surface surrounding threshold marker is used for The reference line in length and breadth of pre-buried steel member and side form is positioned, SURVEYING CONTROL NETWORK is formed;Using mold and in length and breadth baseline be accurately positioned steel Component and prestressed, reinforced muscle guarantee pre-buried steel member and bed die upper surface integral planar degree, guarantee that side form is vertical with bed die It carries out subsequent concreting, maintenance etc. after degree and whole outer profile size to construct, it is ensured that the overall dimensions of prefabricated board, pre-buried Part, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction.(2) concrete bridge deck prefabricated board and girder steel spelling Precision controlling: the measurement net monitoring measurement of four vertical and one horizontal is always 1. spelled using combination beam, guarantees that girder steel is always spelled and concrete bridge deck is prefabricated Plate and girder steel spelling have unified measuring basis, guarantee assembly precision;2. separate type open steel control precision process measure: a. from Girder steel temporary location successively organizes weldering to two side units, reserves welding shrinking process amount, while according to postwelding size, amendment outside is single First spelling technique welding contracted quantity;B. steel girder segment intersternite uses technique splice plate, by whole wheel segment bolt and integral makes it Whole stress, while top increases restained beam, control welding becomes and increases rigidity;3. first that concrete bridge deck is prefabricated using suspender Placing steel beam top surface is lifted, coarse positioning is first realized using guide support, recycles a thousand pieces of gold top, adjusting screw to measure column foot line On the basis of finely tune the prefabricated Board position of bridge floor, making it with girder steel, accurate positioning matches.
Compared with the background technology, the present invention, first is that realizing the concrete of the prefabricated steel member of the steel reinforced concretes combination beam band such as suspension bridge Bridge floor prefabricated board it is prefabricated and with the batch production of girder steel spelling precision controlling, the complete Construction precision control of standardization;Second is that not only may be used To realize precision controlling target, and construction effect can be improved, reduces construction cost.
Detailed description of the invention
Fig. 1 is concrete bridge deck prefabricated mould schematic diagram.
Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view.
Fig. 3 is B-B direction schematic cross-sectional view in Fig. 1.
Fig. 4 is that combination beam always spells four vertical and one horizontal measurement net schematic diagram.
Fig. 5 is the schematic top plan view of Fig. 1.
Fig. 6 is technique splice plate schematic diagram
Fig. 7 is the schematic side view of Fig. 6.
Fig. 8 is restained beam schematic diagram.
Fig. 9 is concrete bridge deck prefabricated board positioning assembling schematic diagram.
Figure 10 is Fig. 9 top view illustration.
Figure 11 is concrete bridge deck prefabricated board positioning assembling adjustment mechanism schematic diagram in Fig. 9 and Figure 10.
Specific embodiment
Referring to attached drawing 1-11.The complete Construction precision control method that the present invention uses includes: (1) with the mixed of pre-buried steel member The prefabricated accuracy control method of solidifying soil floorings;(2) concrete bridge deck prefabricated board and girder steel spelling accuracy control method.
(1) the prefabricated accuracy control method of concrete slab with pre-buried steel member:
According to 1 structure type of concrete bridge deck prefabricated board, prefabricated mould is designed and finishes, bed die need to guarantee whole plane Degree, and it is equipped with the locating notch of positioning with the pre-buried steel member of girder steel butt welding, side form, which is equipped with, is accurately positioned reinforcing bar and prestressing force The notch of muscle, bed die upper surface surrounding threshold marker are used to position the reference line in length and breadth of pre-buried steel member and side form, form measurement Net is controlled, structural representation is as shown in Figure 1.
Baseline is accurately positioned pre-buried steel member using mold bottom die and in length and breadth, utilizes bed die baseline to position side form, recycles The notch spacer bar and presstressed reinforcing steel of reinforcing bar and presstressed reinforcing steel on side form guarantee that pre-buried steel member and bed die upper surface are whole Subsequent concreting, maintenance etc. is carried out after the verticality of flatness, guarantee side form and bed die and whole outer profile size to apply Work, it is ensured that the overall dimensions of prefabricated board, built-in fitting, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction.
(2) concrete bridge deck prefabricated board and girder steel spelling accuracy control method:
1. always spelling the measurement monitoring measurement of net 6,7 of four vertical and one horizontal using combination beam, guarantee girder steel is always spelled and concrete bridge deck prefabricated board There is unified measuring basis with girder steel spelling, guarantees assembly precision.
It is unfavorable for controlling total spelling precision 2. rigidity is small before overlapping for separate type open steel girder floorings, is unfavorable for guaranteeing The subsequent difficult point with bridge floor prefabricated board spelling precision, takes precision process measure control as follows:
A. weldering is successively organized from 13 temporary location of girder steel to two side units, reserves welding shrinking process amount, while according to postwelding size, Correct outer cells spelling technique welding contracted quantity.
B. 13 segment intersternite of girder steel use technique splice plate, by whole wheel segment bolt and it is integral make its entirety stress, together When top increase restained beam 14, control welding become and increase rigidity.
3. concrete bridge deck prefabricated board 1 is first lifted placing steel beam top surface 13 using suspender, guide support 2 and 4 is utilized It first realizes coarse positioning, recycles a thousand pieces of gold top, adjusting screw 3 to measure the horizontal baseline of column foot line 6, segment horizontal baseline 7 and prefabricated board 1 8 and vertical baseline 9 on the basis of finely tune 1 position of bridge floor prefabricated board, making it with girder steel 13, accurate positioning match, guarantee 13 diaphragm plate of girder steel With the pre-buried steel member 5 of prefabricated board between the longitudinal wet joint 11 just, guaranteed between 8 pieces of prefabricated boards 1 and lateral wet 12 reinforcing bar of seam Away from guarantee presstressed reinforcing steel is to just.
4. the butt weld 10 between 13 diaphragm plate of welded steel beam and the pre-buried steel member 5 of concrete bridge deck prefabricated board.
5. in the template of 11 position of longitudinal wet joint installation pouring molding, lateral wet 12 position self-assembling formation template of seam, The reinforcing bar and the wet joint concrete of presstressed reinforcing steel after-pouring vertical and horizontal for installing wet seam, by 8 block concrete prefabricated bridges It pours integral, overlaps integral separate type with girder steel and be open steel reinforced concrete combination beam.
1 is concrete bridge deck prefabricated board, and 2 be guide plate, and 3 be adjusting screw, and 4 be matching supporting element, and 5 be pre-buried steel structure Part, 6 be measurement column foot line, and 7 be the horizontal baseline in segment, and 8 be the horizontal baseline of concrete bridge deck prefabricated board, and 9 be concrete bridge deck prefabricated board Vertical baseline, 10 be pre-buried steel member and girder steel partition abutment joint, and 11 be longitudinal wet joint, and 12 be lateral wet seam, and 13 be bottom Girder steel, 14 be restained beam.
It is to be understood that: although above-described embodiment retouches mentality of designing of the invention detailed text of contrasting It states, but these verbal descriptions, only the simple text of mentality of designing of the present invention is described, rather than to mentality of designing of the present invention Limitation, any combination, increase or modification without departing from mentality of designing of the present invention falls within the protection scope of the present invention.

Claims (1)

1. a kind of separate type opening combinations beam concrete slab overlaps accuracy control method, it is characterized in that: (1) band pre-buried steel structure The prefabricated precision controlling of the concrete slab of part:
According to concrete bridge deck prefabricated board structure type, design finishing prefabricated mould, bed die need to guarantee whole flatness, and Locating notch equipped with positioning with the pre-buried steel member of girder steel butt welding, side form are equipped with the slot for being accurately positioned reinforcing bar and presstressed reinforcing steel Mouthful, bed die upper surface surrounding threshold marker is used to position the reference line in length and breadth of pre-buried steel member and side form, forms SURVEYING CONTROL NETWORK; Baseline is accurately positioned steel member and prestressed, reinforced muscle using mold and in length and breadth, guarantees that pre-buried steel member and bed die upper surface are whole Subsequent concreting, maintenance etc. is carried out after the verticality of flatness, guarantee side form and bed die and whole outer profile size to apply Work, it is ensured that the overall dimensions of prefabricated board, built-in fitting, reinforcing bar positioning accuracy reach the millimetre-sized examination required precision of steel construction;
(2) concrete bridge deck prefabricated board and girder steel spelling precision controlling:
1. always spelling the measurement net monitoring measurement of four vertical and one horizontal using combination beam, guarantee that girder steel is always spelled and concrete bridge deck prefabricated board and steel Beam spelling has unified measuring basis, guarantees assembly precision;
2. separate type open steel controls precision process measure:
A. weldering is successively organized from girder steel temporary location to two side units, reserves welding shrinking process amount, while according to postwelding size, repaired Positive outer cells spelling technique welding contracted quantity;
B. steel girder segment intersternite uses technique splice plate, by whole wheel segment bolt and integral makes its entirety stress, while top Increase restained beam, control welding becomes and increase rigidity;
3. coarse positioning is first realized using guide support first by concrete bridge deck prefabrication and lifting placing steel beam top surface using suspender, It recycles a thousand pieces of gold top, adjusting screw to finely tune the prefabricated Board position of bridge floor on the basis of measuring column foot line, is accurately positioned it with girder steel Matching.
CN201910037597.XA 2019-01-15 2019-01-15 A kind of separate type opening combinations beam concrete slab overlapping accuracy control method CN109944160A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200443605Y1 (en) * 2008-09-04 2009-03-02 황하수 Frame panel supporting apparatus for concrete casting a bridge structure
CN101709571A (en) * 2009-12-03 2010-05-19 中铁宝桥集团有限公司 Preparation method of set of datum lines of bridge steel box girder
US20160115659A1 (en) * 2014-10-27 2016-04-28 Rubrica Ingenieria Y Arquitectura,S.L. Cart for building a bridge board forward progressive
CN105672476A (en) * 2016-03-10 2016-06-15 苏州科技学院 Shape memory alloy composite flange friction steel structure beam column splicing joint
CN106638304A (en) * 2016-12-30 2017-05-10 东南大学 UHPC-common-concrete-lamination composite bridge-deck-slab construction and constructing method thereof
CN108457187A (en) * 2018-01-09 2018-08-28 安徽省交通控股集团有限公司 A kind of pre-assembled suitable for large span combination beam is folded to spell technique
CN108978868A (en) * 2018-09-12 2018-12-11 西安建筑科技大学 A kind of replaceable shearing-type energy-consumption beam section-steel deep beam connection structure and installation method
CN109083014A (en) * 2018-08-31 2018-12-25 中铁六局集团广州工程有限公司 A kind of regulating device and Bridge Beam bottom longitudinal slope regulating system of pre-embedded steel slab

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200443605Y1 (en) * 2008-09-04 2009-03-02 황하수 Frame panel supporting apparatus for concrete casting a bridge structure
CN101709571A (en) * 2009-12-03 2010-05-19 中铁宝桥集团有限公司 Preparation method of set of datum lines of bridge steel box girder
US20160115659A1 (en) * 2014-10-27 2016-04-28 Rubrica Ingenieria Y Arquitectura,S.L. Cart for building a bridge board forward progressive
CN105672476A (en) * 2016-03-10 2016-06-15 苏州科技学院 Shape memory alloy composite flange friction steel structure beam column splicing joint
CN106638304A (en) * 2016-12-30 2017-05-10 东南大学 UHPC-common-concrete-lamination composite bridge-deck-slab construction and constructing method thereof
CN108457187A (en) * 2018-01-09 2018-08-28 安徽省交通控股集团有限公司 A kind of pre-assembled suitable for large span combination beam is folded to spell technique
CN109083014A (en) * 2018-08-31 2018-12-25 中铁六局集团广州工程有限公司 A kind of regulating device and Bridge Beam bottom longitudinal slope regulating system of pre-embedded steel slab
CN108978868A (en) * 2018-09-12 2018-12-11 西安建筑科技大学 A kind of replaceable shearing-type energy-consumption beam section-steel deep beam connection structure and installation method

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