CN104818799A - Annular web girder and preparation method thereof - Google Patents
Annular web girder and preparation method thereof Download PDFInfo
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- CN104818799A CN104818799A CN201510212183.8A CN201510212183A CN104818799A CN 104818799 A CN104818799 A CN 104818799A CN 201510212183 A CN201510212183 A CN 201510212183A CN 104818799 A CN104818799 A CN 104818799A
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- annulus
- flange plate
- bottom wing
- wing listrium
- top flange
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Abstract
The invention discloses an annular web girder and a preparation method thereof. The angular web girder comprises an upper flange plate, a lower flange plate, an end cross beam and rings, wherein the end cross beam is fixedly connected between the upper flange plate and the lower flange plate, the rings are arranged between the upper flange plate and the lower flange plate side by side or in an overlapped and piled way in a length direction of the web girder, the annular rings, the upper flange plate, the lower flange plate and the end cross beam are fixedly connected through connecting pieces, and the rings are connected by the connecting pieces. According to the angular web girder provided by the invention, the angular web girder, which is prepared by a prefabrication and site splicing way, has the advantages of high industrial degree and fast construction speed; in addition, the structural web girder is made from the rings and can be penetrated by light rays in a transverse direction of bridge, therefore the unique aesthetic effect can be realized; meanwhile, the rings of the web girder can adopt either a single-layer or a multi-layer structure according to the aesthetic or mechanical demands.
Description
Technical field
The present invention relates to fixed building (such as bridge engineering (E01) or common buildings component (E04)), especially a kind of annulus web grider and preparation method thereof.
Background technology
Along with Chinese society and expanding economy, the requirements (such as aesthetic requirement, mechanical requirements and construction period) of urban construction to building structure (as industry or civilian construction and bridge etc.) is more and more higher.Wherein, the importance of aesthetic design in design of building structures is also outstanding all the more.Within the scope of city bridge crossing, overpass, sight spot and near bridge etc. have in the design of particular/special requirement to aesthetic effect, aesthetic design more becomes all and relates to one very important in factor.
And in civil engineering, traditional girder structure adopts the various cross section such as frange plate and web composition work shape, box-shaped, T-shaped.Wherein upper and lower frange plate mainly bears moment of flexure, and web mainly bears shearing.The material forming beam body each several part, according to the requirement of requirement of engineering and economy, selects steel concrete or steel etc. to make.So far, in Mid and minor spans (single hole is less than 40m across footpath) bridge engineering, the most frequently used form of structure is prestressed reinforced concrete case beam, T beam and hollow slab beam; In Long span (across footpath 40-150m) and Ultra-Long Spans (across footpath more than 150m) bridge engineering, the most frequently used form of structure is box-girder.For box-girder, the basic skills improving its aesthetic effect is by arranging the form such as Sarasota or web curve, for laterally lighttight bridge main beam increases aesthetic effect good moulding or linear.
Therefore, under the prerequisite of mechanical requirements meeting building structure, how realizing diversified appearance effect, shortening construction period is the problem needing solution badly.
Summary of the invention
Goal of the invention: provide a kind of annulus web grider and preparation method thereof, to solve the problems referred to above that prior art exists.
Technical scheme: a kind of annulus web grider, comprise top flange plate, bottom wing listrium, be fixedly connected on the end floor beam between top flange plate and bottom wing listrium, and along web grider length direction side by side or intersect the stacking annulus be arranged between described top flange plate and bottom wing listrium, described annulus and top flange plate, between bottom wing listrium and end floor beam, and to be fixedly connected with by connector between annulus with annulus.
Preferably, described top flange plate, bottom wing listrium and/or annulus adopt steel material or Reinforced Concrete Materials to make.
In a further embodiment, described annulus is more than two rows, along web grider length direction side by side or overlapping setting.Often arrange annulus to be made up of two-layer above annulus.Described annulus is provided with stiffening rib or/and diagonal brace of putting more energy into.
Prepare the method for above-mentioned annulus web grider, comprise the steps:
1) prefabricated top flange plate, bottom wing listrium and annulus, be transported to scene;
2) on bridge pad, bottom wing listrium is arranged;
3) on fulcrum place bottom wing listrium, welding or bolt is adopted to connect or additive method connection end floor beam;
4) on bottom wing listrium, annulus is arranged;
5) connector between mounting circular ring and bottom wing listrium, makes between annulus and bottom wing listrium and being connected and fixed, the connector between mounting circular ring, makes annulus and annulus be interconnected and fixed;
6) on annulus, top flange plate is arranged, and the connector between mounting circular ring and top flange plate, make between annulus and top flange plate and being connected and fixed;
7) adopt welding, bolt connects or other connected modes connect bottom wing listrium and end floor beam.
Wherein, other connected modes refer to well known to those skilled in the artly be fixedly connected with mode.
Preferably, in step 2, if span of bridge is comparatively large, between spanning, temporary support is arranged.
Beneficial effect: the present invention adopts the method for prefabrication on-site consolidation to prepare, and has the advantage that batch production degree is high, speed of application is fast.In addition, because this structure web adopts annulus, at direction across bridge tolerable light therethrough, therefore there is unique aesthetic effect.Annulus as web according to needs that are aesthstic, mechanics, can adopt the structure of single or multiple lift.
Accompanying drawing explanation
Fig. 1 is the sectional view along web grider length direction of the present invention.
The structural representation of Fig. 2 a to Fig. 2 e different embodiments of the invention.
Fig. 3 is the annulus being provided with reinforcing structure.
Detailed description of the invention
As shown in Figure 1, annulus web grider of the present invention, mainly comprise top flange plate 1, bottom wing listrium 2, be fixedly connected on the end floor beam 3 between top flange plate and bottom wing listrium, in addition, the present invention also comprises along web grider length direction side by side or intersect the stacking annulus 4 be arranged between described top flange plate and bottom wing listrium, described annulus and top flange plate, between bottom wing listrium and end floor beam, and is fixedly connected with by connector 5 between annulus with annulus.
In a further embodiment, described top flange plate, bottom wing listrium and/or annulus adopt steel material or Reinforced Concrete Materials to make.
Forward Fig. 2 a to Fig. 2 e to, described annulus is more than two rows, along web grider length direction side by side or overlapping setting.Such as in fig. 2 a, annulus is 2 rows, along bridge to arranging in turn, between adjacent rings, annulus and top flange plate, annulus and bottom wing listrium, and is fixedly connected with between annulus with end floor beam, such as, connector can be adopted to connect.In the embodiment shown in Fig. 2 b, annulus is three rows, and also along bridge to layout, connected mode is with reference to the embodiment shown in figure 2a.In figure 2 c, annulus is 2 rows, along bridge to interlaced arrangement.In the embodiment shown in Fig. 2 d, annulus is 2 rows, and often arranging annulus has two-layer.
Then describe Fig. 3, in the annulus shown in Fig. 3, described annulus is provided with stiffening rib or diagonal brace of putting more energy into.
Engineering Projects 1:
A kind of annulus web grider, this example comprises a series of annulus, the bottom wing listrium be connected by connector with annulus, the top flange plate be connected by connector with annulus and the end floor beam be connected by connector with beam-ends annulus arranged along beam length direction.This routine structure is deck type structure, i.e. the direct bearing load of structure top flange plate.Be applicable to and comprise in all kinds of deck type engineering structuress of bridge main beam.
Top flange plate according to the needs of design, can select steel plate or armored concrete slab.Adopt steel frange plate, then construction weight is comparatively light, but cost is higher.Due to lightweight, during construction, prefabrication can be adopted, the construction technology of on-site consolidation.Site operation amount is little, and speed of application is fast.Adopt steel concrete frange plate, then can reduce rolled steel dosage, reduce cost.But steel concrete frange plate weight is comparatively large, adopt precast assembly process comparatively difficult, compare and be suitable for cast in situs construction.
1) the upper and lower frange plate of prefabrication and annulus, be transported to scene;
2) on bridge pad, arranging bottom wing listrium, if girder span footpath is comparatively large, then needing across arranging a temporary support;
3) installation end crossbeam on fulcrum place bottom wing listrium;
4) on bottom wing listrium, annulus is arranged according to certain rules; Different according to structure width, annulus according to horizontal bending resistance requirement, can be arranged two rows or arranges more along bridge lateral; Each row's annulus can adopt transversely concordant or interlaced arrangement, to form multiple aesthetic effect; If bearing load is comparatively large, the form of overlapping layout between annulus, also can be adopted to improve the shear resistant capacity of annulus; Annulus according to requirement that is aesthstic and mechanics, can arrange one or more layers along deck-molding.
5) between mounting circular ring and bottom wing listrium, connector makes between annulus and bottom wing listrium and being connected and fixed, and between mounting circular ring, connector makes between annulus and annulus and being connected and fixed, and between mounting circular ring and end floor beam, connector makes between annulus and end floor beam and being connected and fixed;
6) on annulus, arrange (or cast-in-place) top flange plate, and between mounting circular ring and top flange plate, connector makes between annulus and top flange plate and being connected and fixed.
Annulus material should be structural steel usually, as Q235, Q345, WNQ570 etc.Because annulus mainly bears shearing, need in annulus, to arrange necessary stiffening rib to improve its shear resistant capacity.Shearing larger part is born in structure, should by calculating the size determining stiffening rib; If desired also oblique support of putting more energy into additionally can be set in ring.For some special situation (annulus has larger rigidity as required), also steel concrete annulus can be adopted.Connector can adopt high-strength bolt to connect or other effective connected modes.The material of upper and lower frange plate can according to bridge present position and the difference needing bearing load, and select weathering steel or other structural iron, top flange plate also can adopt armored concrete slab to reduce cost.
Engineering Projects 2:
Similar with Engineering Projects 1, this example comprises a series of annulus, the bottom wing listrium be connected by connector with annulus, the top flange plate be connected by connector with annulus and the end floor beam be connected by connector with beam-ends annulus arranged along beam length direction.This routine structure is lower support type structure, both the direct bearing load of structure bottom wing listrium.Be applicable in all kinds of lower support type engineering structuress such as comprising building structure vestibule.When adopting this kind of lower support type structure, annulus according to deck-siding, can be arranged two rows along beam length rule ordering or arranges more.Namely the region separated by annulus can be used as the region of bearing load (as passed through pedestrian).End floor beam correspondingly should reserve the perforate for People's Bank of China.
In a word, the present invention adopts steel (or steel concrete) annulus with stiffening construction to replace the thin-wall web plate of traditional girder structure, and top flange plate, bottom wing listrium are connected to form entirety by connector and annulus.This structure is applicable to take into account in aesthstic and stressed beam-type member (as vestibule between building) across needing in the less bridge engineeting in footpath or building structure.The site-assembled mode of prefabrication can be adopted to construct.Because prefabrication degree is high, this structure can effectively reduce site operation workload, the reduction of erection time.Because light can by the hollow parts of annulus, therefore this structure has unique aesthetic effect.The quantity of annulus and arrange can according to the width of structure, design across footpath and aesthetic requirement accordingly, realizes various appearance effect meeting on the basis that supporting capacity requires.
Make because this structure web have employed annulus, and do not establish diaphragm to improve aesthetic effect as far as possible, therefore it is mainly applicable to across in footpath and the wide all less civil engineering of bridge, as little across vestibule engineering between footpath pedestrian bridge and building.If need to adopt this structure in long span structure and the larger structure of width, then should along beam length direction, at places such as such as span centre, 1/4th cross sections and beam-ends, diaphragm is set to improve the globality of structure.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (7)
1. an annulus web grider, comprise top flange plate (1), bottom wing listrium (2), and the end floor beam (3) be fixedly connected between top flange plate and bottom wing listrium, it is characterized in that, also comprise along web grider length direction side by side or intersect the stacking annulus be arranged between described top flange plate and bottom wing listrium, described annulus (4) and top flange plate, between bottom wing listrium and end floor beam, and to be fixedly connected with by connector (5) between annulus with annulus.
2. annulus web grider as claimed in claim 1, is characterized in that, described top flange plate, bottom wing listrium and/or annulus adopt steel material or Reinforced Concrete Materials to make.
3. annulus web grider as claimed in claim 1 or 2, it is characterized in that, described annulus is more than two rows, along web grider length direction side by side or overlapping setting.
4. annulus web grider as claimed in claim 3, is characterized in that, often arranges annulus and is made up of two-layer above annulus.
5. annulus web grider as claimed in claim 1 or 2, it is characterized in that, described annulus is provided with stiffening rib and/or diagonal brace of putting more energy into.
6. prepare the method for the annulus web grider described in any one of claim 1 to 5, it is characterized in that, comprise the steps:
1) prefabricated top flange plate, bottom wing listrium and annulus, be transported to scene;
2) on bridge pad, bottom wing listrium is arranged;
3) on fulcrum place bottom wing listrium, welding or bolt is adopted to connect or additive method connection end floor beam;
4) on bottom wing listrium, annulus is arranged;
5) connector between mounting circular ring and bottom wing listrium, makes between annulus and bottom wing listrium and being connected and fixed, the connector between mounting circular ring, makes annulus and annulus be interconnected and fixed;
6) on annulus, top flange plate is arranged, and the connector between mounting circular ring and top flange plate, make between annulus and top flange plate and being connected and fixed;
7) adopt welding, bolt connects or other connected modes connect bottom wing listrium and end floor beam.
7. prepare the method for annulus web grider as claimed in claim 6, it is characterized in that, in step 2, if span of bridge is comparatively large, between spanning, arrange temporary support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510212183.8A CN104818799A (en) | 2015-04-29 | 2015-04-29 | Annular web girder and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510212183.8A CN104818799A (en) | 2015-04-29 | 2015-04-29 | Annular web girder and preparation method thereof |
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| CN104818799A true CN104818799A (en) | 2015-08-05 |
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| CN201510212183.8A Pending CN104818799A (en) | 2015-04-29 | 2015-04-29 | Annular web girder and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878519A (en) * | 2019-11-08 | 2020-03-13 | 东南大学 | Emergency bridge structure for rapid assembling construction and construction method thereof |
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| CN101173560A (en) * | 2007-11-15 | 2008-05-07 | 焦作市柏林建筑模板有限公司 | Building combined template |
| CN201139247Y (en) * | 2008-01-04 | 2008-10-29 | 尹骏坪 | Ball equipments arranging rack |
| CN101603352A (en) * | 2009-06-24 | 2009-12-16 | 中国电子工程设计院 | A kind of Castellated beam and steel frame system |
| CN102595980A (en) * | 2009-11-13 | 2012-07-18 | Bld东洋株式会社 | Tree-shaped decoration apparatus |
| CN103726440A (en) * | 2014-01-03 | 2014-04-16 | 东南大学 | Round tube web girder and manufacturing method thereof |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080357U (en) * | 1990-12-21 | 1991-07-10 | 项雪利 | Foldable multifunction clothes airer |
| US5560176A (en) * | 1993-01-13 | 1996-10-01 | Deltatek Oy | Prefabricated steel-concrete composite beam |
| JP2005163508A (en) * | 2003-11-28 | 2005-06-23 | Masami Sakurada | Reinforcing method for beam reinforcement of reinforced concrete construction |
| CN101173560A (en) * | 2007-11-15 | 2008-05-07 | 焦作市柏林建筑模板有限公司 | Building combined template |
| CN201139247Y (en) * | 2008-01-04 | 2008-10-29 | 尹骏坪 | Ball equipments arranging rack |
| CN101603352A (en) * | 2009-06-24 | 2009-12-16 | 中国电子工程设计院 | A kind of Castellated beam and steel frame system |
| CN102595980A (en) * | 2009-11-13 | 2012-07-18 | Bld东洋株式会社 | Tree-shaped decoration apparatus |
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| CN110878519A (en) * | 2019-11-08 | 2020-03-13 | 东南大学 | Emergency bridge structure for rapid assembling construction and construction method thereof |
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Application publication date: 20150805 |
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