CN104060547A - Temporary steel trestle constructing method and trestle - Google Patents
Temporary steel trestle constructing method and trestle Download PDFInfo
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- CN104060547A CN104060547A CN201410328921.0A CN201410328921A CN104060547A CN 104060547 A CN104060547 A CN 104060547A CN 201410328921 A CN201410328921 A CN 201410328921A CN 104060547 A CN104060547 A CN 104060547A
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Abstract
The invention discloses a temporary steel trestle constructing method and a trestle and relates to the field of bridge construction. The temporary steel trestle constructing method sequentially comprises the following steps of prefabricating standardized structural elements, prefabricating synthetic-wood bridge deck slab standardized structural elements and splicing bridge deck layers. The trestle comprises a supporting structure, a main beam arranged above the supporting structure, a beret frame arranged above the main beam and a synthetic-wood bridge deck layer arranged above the beret frame. The synthetic-wood bridge deck layer is formed by a plurality of synthetic-wood bridge deck slabs which are horizontally and sequentially spliced. Each synthetic-wood bridge deck slab is formed by a plurality of synthetic-wood primary beams, a plurality of synthetic-wood secondary beams, a plurality of synthetic-wood clamping beams and a plurality of synthetic-wood face boards which are integrally spliced. The temporary steel trestle constructing method is convenient, quick and reliable to construct, achieves the purpose of environmental friendliness, is economical and is low in construction cost. The trestle erected through the constructing method is high in strength, better in reliability, better in mechanical performance, better in corrosion resistance and better in fire resistance. Furthermore, components of the trestles can be used repeatedly.
Description
Technical field
The present invention relates to field of bridge construction, be applicable to the construction of temporary steel trestle, be specially adapted to the steel trestle construction that length is long, scale is large, the duration is tight.
Background technology
1) form of structure of traditional trestle:
In bridge construction, trestle is as transporting material, equipment, personnel and the temporary bridge facility of building, it is unique passage that main bridge construction material supply waterborne and traffic are come in and gone out, also be basic engineering and the controlled engineering of whole Bridge Construction, particularly across river, bridge spanning the sea, what often trestle was built is long, the human and material resources that drop into are many, current the longest construction bridge--Ningbo Southern Coastal Bridge over Hangzhou Bay construction bridge in the world, 9444 meters of total lengths, totally 633 across.Visible, the progress that the optimization of trestle work structure is constructed for trestle, cost etc. have very important meaning.
The form of structure of conventional steel trestle bridge deck generally speaking has three kinds at present:
A kind of is the most widely used steel structural bridge panel.The second is prefabricated reinforced concrete bridge deck, because the material of reinforced concrete bridge deck plate is cheap compared with steel work, disposable input is less, and concrete has decay resistance in briny environment, therefore in bridge spanning the sea the inside, starts to be promoted gradually utilization.The third is wooden construction bridge deck, and wooden construction bridge deadweight is little, it is convenient to construct, environmental protection, comprehensive economy are good.
2) limitation of tradition construction:
For steel bridge deck, because its structure is under equal conditions lighter compared with steel concrete panel weight, turnover is convenient, as trestle panel-form be widely used in freshwater, but the material price of this panel is higher, particularly, for briny environment, its corrosion-resistant, need to do the work such as anticorrosive coating.
For reinforced concrete bridge deck plate, because concrete itself has decay resistance, better for briny environment applicability, but need to be prefabricated at back court, take construction plant; And its deadweight is heavier, is unfavorable for the turnover between project; After once using, just become discarded object, discontented podomere energy environmental requirement.
For wooden bridge panel, it combines the advantage of steel bridge deck and reinforced concrete bridge deck plate, has possessed the two deadweight lighter, and turnover is convenient, the feature of good corrosion resistance, but as natural materials, there is the natural defect of timber, as be full of cracks, warpage, scar knot, obvious aberration etc., the variability of its intensity is larger, therefore,, in project construction process, there is certain security risk; And timber has inflammability, in work progress easily because the operations such as welding and initiation fire; High-quality natural timber is as national limited resources, if large scale mining does not meet national low-carbon environment-friendly Economic Development Mode requirement still more.
And in construction technology, the weight of traditional steel bridge deck and reinforced concrete bridge deck plate is larger, need large-scale hanging device, some hanging device even becomes the least favorable control load of trestle, thereby the consumption of trestle shellfish thunder sheet girder is increased, and for the laying of wooden construction panel, need the laying of one one, and the duration is poor, and the globality of panel is poor.
Summary of the invention
The object of the invention is to: propose a kind of convenient, fast construction, reliable, environmental protection and economy, the temporary steel trestle construction method that cost is low, a kind of trestle being set up by the method is proposed simultaneously, its parts can have enough to meet the need use repeatedly, intensity is high, reliability and better mechanical property, and good corrosion resistance, fire resistance are better.
Object of the present invention realizes by following technical proposals:
A temporary steel trestle construction method, comprises the following steps successively:
1) standardized structural element is prefabricated: previously prepared some wood moulds that girder, wood are moulded secondary beam, Ka Liang moulded by wood and wood is moulded panel standard component;
2) it is prefabricated that wood is moulded bridge deck standard component: some blocks of wood of the bonding one-tenth of aforementioned prefabricated standardized structural element are moulded to bridge deck standard component, every block of wood is moulded bridge deck and by some wood strips, is moulded that girder, some wood strips are moulded secondary beam, some wood strips are moulded Ka Liang, and some blocks of wood are moulded, and panel is bonding to be formed;
3) wood is moulded bridge floor layer splicing: some blocks of wood are moulded to bridge deck level in Bailey bracket and are spliced to form successively wood and mould bridge floor layer, each piece wood is moulded between bridge deck and wood mould between bridge deck and Bailey bracket, removably connect fixing.
In such scheme, the complicated construction process of the relative prior art of this construction method, only need simple three steps, and wherein first two steps can also directly complete in factory, only need final step during practice of construction, and efficiency of construction has had essential lifting; Similarly, construct complete, it is removed operating efficiency and significantly promotes too, and the parts of removing can also have enough to meet the need use repeatedly.
As selection, every block of wood is moulded in bridge deck, described each wood is moulded between girder and each wood is moulded between secondary beam all parallel interval and arranged, and wood is moulded secondary beam and is located at wood and moulds on girder perpendicular, described each wood is moulded panel and is arranged successively and be layed in described wood and mould on secondary beam, and described wood is moulded two adjacent wood that bridge deck keep to the side and moulded and between girder, be connected with described wood and mould Ka Liang.
As further selection, described wood mould connector that bridge deck mould Ka Liang and Bailey bracket by the described wood that removably connects removably connect fixing, and two blocks of wood of splicing mutually mould two wood that keep to the side by it between bridge deck and be close to mould between girder, through connector, removably connect fixing.
In such scheme, wood is moulded the easy for installation and efficient of bridge floor layer, relatively conventional mounting mode realizes the lifting of matter: the comparatively complexity that is connected all of traditional trestle panel and shellfish thunder sheet: because the material of shellfish thunder sheet is 16Mn steel, it is a kind of high strength steel, therefore in panel work progress, panel material and shellfish thunder sheet can not be welded, and for steel bridge deck, need to top rail and shellfish thunder sheet girder be fixed with U-bolt, because U-bolt spatially exists " conflict " with longitudinal distribution beam, the standard of the 300mm spacing that therefore can not give by design is arranged, thereby the globality to trestle of impact.The fixing of steel concrete panel and wooden construction panel can only be realized by the pretension of fining twisted steel and shaped steel on the outermost shellfish thunder of trestle sheet, but the globality of this firmly beforehand means is poor, the time has been grown the driving planeness that easily affects panel under wheel load and temperature load effect.
A kind of trestle of being manufactured by aforementioned temporary steel trestle construction method, comprise braced structures, be located at the main beam on described braced structures, be located at the Bailey bracket on described main beam, and the wood of being located on described Bailey bracket is moulded bridge floor layer, described wood is moulded bridge floor layer and by some blocks of wood, is moulded bridge deck level and be spliced to form successively, described every block of wood is moulded bridge deck and is moulded girder by some wood strips, some wood strips are moulded secondary beam, some wood strips are moulded Ka Liang, and some blocks of wood to mould panel bonding in aggregates, described each wood is moulded between girder and each wood is moulded between secondary beam all parallel interval and arranged, and wood is moulded secondary beam and is located at wood and moulds on girder perpendicular, described each wood is moulded panel and is arranged successively and be layed in described wood and mould on secondary beam, described wood is moulded two adjacent wood that bridge deck keep to the side and is moulded and between girder, be connected with described wood and mould Ka Liang, described wood is moulded the connector that bridge deck mould Ka Liang and Bailey bracket by the described wood that removably connects and is removably connected fixing, and mutually two blocks of wood of splicing mould two wood that keep to the side by it between bridge deck and be close to mould between girder, through connector, removably connect fixing.
As selection, the connector that the adjacent two blocks of wood of described connection are moulded bridge deck is split bolt.
As selection, the connector of described connected wood-plastic bridge deck and Bailey bracket is bolt buckle.
As selection, this temporary steel trestle also comprises is located at the railing that described wood is moulded bridge floor layer both sides.
The main scheme of aforementioned the present invention and each further selection scheme thereof can independent assortment to form a plurality of schemes; be the present invention and can adopt also claimed scheme: as the present invention; each selects to select any combination with other; those skilled in the art can understand there is multiple combination according to prior art and common practise after understanding the present invention program; be the claimed technical scheme of the present invention, at this, do not do exhaustive.
Beneficial effect of the present invention: Wood-plastic material has the advantages that conveniently mould and process, and good corrosion resistance, fire resistance are better, can be processed into rational panel construction form according to stressed needs, possess the condition of standardization batch making.By previously prepared standard component wood being moulded to girder, wood, mould secondary beam, wood and mould Ka Liang and wood and mould panel and be assembled in advance whole wood and mould bridge deck, after allowing, by the assembled wood of block-by-block, mould bridge deck, reduction of erection time significantly, meanwhile, all right quick-detachment after Practical Completion, turnover is used repeatedly, so temporary steel trestle work structure of the present invention, the every advantage that has possessed conventional trestle, and greatly reduction of erection time, saving construction cost, have good promotion prospect.
Accompanying drawing explanation
Fig. 1 is the section structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the superstructure facade structures schematic diagram of the embodiment of the present invention;
Fig. 3 is the structural representation that the wood of the embodiment of the present invention is moulded bridge deck;
Fig. 4 is the local enlarged diagram of Fig. 3;
Fig. 5 is that the monolithic wood of the embodiment of the present invention is moulded deck structrue differential profile figure;
Fig. 6 is that the monolithic wood of the embodiment of the present invention is moulded bridge deck primary and secondary beam figure;
Fig. 7 is invention construction technology process schematic diagram;
Fig. 8 is invention construction technology process schematic diagram;
Fig. 9 is invention construction technology process schematic diagram;
In figure, 1 is braced structures, and 2 is main beam, and 3 is Bailey bracket, and 4 mould bridge floor layer for wood, and 41 mould bridge deck for wood, and 5 is railing, and 6 mould girder for wood, and 7 mould secondary beam for wood, and 8 mould Ka Liang for wood, and 9 mould panel for wood, and 10 is split bolt, and 11 is bolt buckle.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
A temporary steel trestle construction method, comprises the following steps successively:
1) standardized structural element is prefabricated: previously prepared some wood moulds that girder 6, wood are moulded secondary beam 7, card beam 8 moulded by wood and wood is moulded panel 9 standard components;
2) it is prefabricated that wood is moulded bridge deck standard component: some blocks of wood of the bonding one-tenth of aforementioned prefabricated standardized structural element are moulded to bridge deck 41 standard components, every block of wood is moulded bridge deck 41 and by some wood strips, is moulded that girder 6, some wood strips are moulded secondary beam 7, some wood strips are moulded card beam 8, and some blocks of wood are moulded, and panel 9 is bonding to be formed; Every block of wood is moulded in bridge deck 41, each wood is moulded 6 of girders and each wood and is moulded 7 equal parallel interval of secondary beam and arrange, and wood is moulded secondary beam 7 and is located at wood and moulds on girder 6 perpendicular, each wood is moulded panel 9 and is arranged successively and be layed in wood and mould on secondary beam 7, and wood is moulded two adjacent wood that bridge deck 41 keep to the side and moulded 6 of girders and be connected with wood and mould card beam 8.
3) wood is moulded bridge floor layer splicing: as Figure 7-9, some blocks of wood are moulded to bridge deck 41 levels in Bailey bracket 3 and are spliced to form successively wood and mould bridge floor layer 4, each piece wood is moulded between bridge deck 41 and wood mould between bridge deck 41 and Bailey bracket 3, removably connect fixing.Wood is moulded connector that bridge deck 41 mould card beam 8 and Bailey bracket 3 by the wood that removably connects and is removably connected fixingly, and two blocks of wood of splicing are mutually moulded 41 two wood that keep to the side by it and be close to of bridge deck and moulded 6 of girders and through connector, removably connect fixing.Concrete operations first wood mould bridge deck 41 by hanging device handling to infield, then wood is moulded bridge deck 41 and is in place, last wood is moulded bridge deck 41 and is formed integral body by connector and other panels and Bailey bracket, can lift from trestle one end to the other end laying, the wood that lifting lays is moulded the passage that bridge deck 41 can become the construction equipments such as crane.
As shown in Figures 1 to 6, by preceding method temporary steel trestle, comprise the braced structures 1 supporting successively from bottom to top, be located at the main beam 2 on braced structures 1, be located at the Bailey bracket 3 on main beam 2, and the wood of being located on Bailey bracket 3 moulds bridge floor layer 4, also comprise and be located at the railing 5 that wood is moulded bridge floor layer 4 both sides.Wood is moulded bridge floor layer 4 and by some blocks of wood, is moulded bridge deck 41 levels and be spliced to form successively, wood is moulded bridge deck 41 can adopt previously prepared standard component, every block of wood is moulded bridge deck 41 and by some wood strips, is moulded that girder 6, some wood strips are moulded secondary beam 7, some wood strips are moulded card beam 8, and some blocks of wood mould panel 9 bonding (as bonding with epoxyn) in aggregates, wood is moulded girder 6, wood and is moulded secondary beam 7, wood and mould card beam 8 and wood and mould panel 9 and can adopt equally standard component to prepare to be then assembled into wood and mould bridge deck 41.Each wood is moulded 6 of girders and each wood and is moulded 7 equal parallel interval of secondary beam and arrange, and wood is moulded secondary beam 7 and is located at wood and moulds on girder 6 perpendicular, each wood is moulded panel 9 and is arranged successively and be layed in wood and mould on secondary beam 7, wood is moulded two adjacent wood that bridge deck 41 keep to the side and is moulded 6 of girders and be connected with wood and mould card beam 8, wood is moulded connector that bridge deck 41 mould card beam 8 and Bailey bracket 3 by the wood that removably connects and is removably connected fixingly, and two blocks of wood of splicing are mutually moulded 41 two wood that keep to the side by it and be close to of bridge deck and moulded 6 of girders and through connector, removably connect fixing.As selection, as shown in this embodiment, connecting the connector that adjacent two blocks of wood mould bridge deck 41 is split bolt 10, the connector of connected wood-plastic bridge deck 41 and Bailey bracket 3 is bolt buckle 11, adopt dismountable connector, installation while making wood mould bridge deck 41 no matter to be construction, or the dismounting after construction is all very efficient and convenient, can repeatedly have enough to meet the need use.
Wood-plastic material is to take timber as primary raw material, and resin and lignocellulosic material are mixed by a certain percentage, through suitable processing, makes its high-performance generating by different complex methods from various plastics, a kind of composite material of high added value.Each parts of the present invention all can adopt commercially available Wood-plastic material to be prepared from.
From wood, mould compound extruded goods and timber relatively, wood plastic composite exactly likes timber through outward appearance and the texture of the manufactured goods of expressing technique, and has the processing characteristics the same with timber, workability.Extrudate density is at 600～1000kg/m
3between, different according to the height of the number of wood fiber loading and frothing percentage, generally at 600～800kg/m
3left and right, and timber is quite approaching.Water content is about 2%, and the water content of timber is between 12%～13%, compares Wood-plastic composite section bar and has better water resistant, the function such as anticorrosive, and do not have the natural defect of timber, as be full of cracks, warpage, scar knot, obvious aberration etc. with log.
Wood-plastic material is as the bridge deck of trestle, the deadweight both with traditional natural timber is light, turnover is convenient, can repeatedly have enough to meet the need the feature of use, good corrosion resistance, solved again wood quality defect problem, intensity is high, reliability and better mechanical property, and this composite material has anti-flammability, fire resistance is better, and the wood fiber that Wood-plastic material adopts can extract from waste and old timber, environmental protection and economy, at the bottom of cost.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a temporary steel trestle construction method, is characterized in that comprising the following steps successively:
1) standardized structural element is prefabricated: previously prepared some wood moulds that girder, wood are moulded secondary beam, Ka Liang moulded by wood and wood is moulded panel standard component;
2) it is prefabricated that wood is moulded bridge deck standard component: some blocks of wood of the bonding one-tenth of aforementioned prefabricated standardized structural element are moulded to bridge deck standard component, every block of wood is moulded bridge deck and by some wood strips, is moulded that girder, some wood strips are moulded secondary beam, some wood strips are moulded Ka Liang, and some blocks of wood are moulded, and panel is bonding to be formed;
3) wood is moulded bridge floor layer splicing: some blocks of wood are moulded to bridge deck level in Bailey bracket and are spliced to form successively wood and mould bridge floor layer, each piece wood is moulded between bridge deck and wood mould between bridge deck and Bailey bracket, removably connect fixing.
2. temporary steel trestle construction method as claimed in claim 1, it is characterized in that: every block of wood is moulded in bridge deck, described each wood is moulded between girder and each wood is moulded between secondary beam all parallel interval and arranged, and wood is moulded secondary beam and is located at wood and moulds on girder perpendicular, described each wood is moulded panel and is arranged successively and be layed in described wood and mould on secondary beam, and described wood is moulded two adjacent wood that bridge deck keep to the side and moulded and between girder, be connected with described wood and mould Ka Liang.
3. temporary steel trestle construction method as claimed in claim 2, it is characterized in that: described wood mould connector that bridge deck mould Ka Liang and Bailey bracket by the described wood that removably connects removably connect fixing, and two blocks of wood of splicing mutually mould two wood that keep to the side by it between bridge deck and be close to mould between girder, through connector, removably connect fixing.
4. the trestle that the temporary steel trestle construction method described in arbitrary claim is manufactured in claims 1 to 3, it is characterized in that: comprise braced structures, be located at the main beam on described braced structures, be located at the Bailey bracket on described main beam, and the wood of being located on described Bailey bracket is moulded bridge floor layer, described wood is moulded bridge floor layer and by some blocks of wood, is moulded bridge deck level and be spliced to form successively, described every block of wood is moulded bridge deck and is moulded girder by some wood strips, some wood strips are moulded secondary beam, some wood strips are moulded Ka Liang, and some blocks of wood to mould panel bonding in aggregates, described each wood is moulded between girder and each wood is moulded between secondary beam all parallel interval and arranged, and wood is moulded secondary beam and is located at wood and moulds on girder perpendicular, described each wood is moulded panel and is arranged successively and be layed in described wood and mould on secondary beam, described wood is moulded two adjacent wood that bridge deck keep to the side and is moulded and between girder, be connected with described wood and mould Ka Liang, described wood is moulded the connector that bridge deck mould Ka Liang and Bailey bracket by the described wood that removably connects and is removably connected fixing, and mutually two blocks of wood of splicing mould two wood that keep to the side by it between bridge deck and be close to mould between girder, through connector, removably connect fixing.
5. temporary steel trestle as claimed in claim 4, is characterized in that: the connector that the adjacent two blocks of wood of described connection are moulded bridge deck is split bolt.
6. temporary steel trestle as claimed in claim 4, is characterized in that: the connector of described connected wood-plastic bridge deck and Bailey bracket is bolt buckle.
7. temporary steel trestle as claimed in claim 4, is characterized in that: this temporary steel trestle also comprises is located at the railing that described wood is moulded bridge floor layer both sides.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410328921.0A CN104060547B (en) | 2014-07-10 | 2014-07-10 | A kind of temporary steel trestle construction method |
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| CN201410328921.0A CN104060547B (en) | 2014-07-10 | 2014-07-10 | A kind of temporary steel trestle construction method |
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| CN104060547A true CN104060547A (en) | 2014-09-24 |
| CN104060547B CN104060547B (en) | 2016-02-10 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358207A (en) * | 2014-10-24 | 2015-02-18 | 中铁大桥局集团第六工程有限公司 | Rapid steel trestle construction structure and construction method |
| CN104372743A (en) * | 2014-10-31 | 2015-02-25 | 中铁四局集团第二工程有限公司 | Rapid construction method for trestle |
| CN108222010A (en) * | 2018-03-20 | 2018-06-29 | 南京市测绘勘察研究院股份有限公司 | A kind of recyclable steel concrete combined type foundation pit trestle work structure of assembled and construction method |
| CN109322240A (en) * | 2018-11-06 | 2019-02-12 | 青海送变电工程有限公司 | A kind of extension type channel trestle |
| CN111041974A (en) * | 2020-01-14 | 2020-04-21 | 安徽水安建设集团股份有限公司 | Lap joint bridge for water conservancy ditch |
| CN112144408A (en) * | 2020-09-22 | 2020-12-29 | 中交一公局集团有限公司 | Construction method for building assembled trestle |
| CN112681135A (en) * | 2020-12-14 | 2021-04-20 | 中铁二十局集团第三工程有限公司 | Construction method of n-shaped sea-crossing temporary steel trestle |
| CN113969540A (en) * | 2020-07-24 | 2022-01-25 | 天津电力工程监理有限公司 | Construction temporary trestle and construction method thereof |
| CN115652772A (en) * | 2022-12-28 | 2023-01-31 | 中冶建筑研究总院有限公司 | Quick connecting system and method for bridge deck of steel temporary bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358207A (en) * | 2014-10-24 | 2015-02-18 | 中铁大桥局集团第六工程有限公司 | Rapid steel trestle construction structure and construction method |
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| CN108222010A (en) * | 2018-03-20 | 2018-06-29 | 南京市测绘勘察研究院股份有限公司 | A kind of recyclable steel concrete combined type foundation pit trestle work structure of assembled and construction method |
| CN109322240A (en) * | 2018-11-06 | 2019-02-12 | 青海送变电工程有限公司 | A kind of extension type channel trestle |
| CN111041974B (en) * | 2020-01-14 | 2021-01-29 | 安徽水安建设集团股份有限公司 | Lap joint bridge for water conservancy ditch |
| CN111041974A (en) * | 2020-01-14 | 2020-04-21 | 安徽水安建设集团股份有限公司 | Lap joint bridge for water conservancy ditch |
| CN113969540A (en) * | 2020-07-24 | 2022-01-25 | 天津电力工程监理有限公司 | Construction temporary trestle and construction method thereof |
| CN113969540B (en) * | 2020-07-24 | 2024-02-20 | 天津电力工程监理有限公司 | Construction temporary trestle and construction method thereof |
| CN112144408A (en) * | 2020-09-22 | 2020-12-29 | 中交一公局集团有限公司 | Construction method for building assembled trestle |
| CN112681135A (en) * | 2020-12-14 | 2021-04-20 | 中铁二十局集团第三工程有限公司 | Construction method of n-shaped sea-crossing temporary steel trestle |
| CN112681135B (en) * | 2020-12-14 | 2022-10-11 | 中铁二十局集团第三工程有限公司 | Construction method of n-shaped sea-crossing temporary steel trestle |
| CN115652772A (en) * | 2022-12-28 | 2023-01-31 | 中冶建筑研究总院有限公司 | Quick connecting system and method for bridge deck of steel temporary bridge |
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| CN104060547B (en) | 2016-02-10 |
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