CN1226488C - Aluminium alloy bridge expansion and cotraction device and its manufacturing method - Google Patents
Aluminium alloy bridge expansion and cotraction device and its manufacturing method Download PDFInfo
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- CN1226488C CN1226488C CN 200310119292 CN200310119292A CN1226488C CN 1226488 C CN1226488 C CN 1226488C CN 200310119292 CN200310119292 CN 200310119292 CN 200310119292 A CN200310119292 A CN 200310119292A CN 1226488 C CN1226488 C CN 1226488C
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Abstract
The present invention discloses a method for producing aluminum alloy bridge expansion and contraction device, which comprises the design of an edge beam for forming a bridge expansion and contraction groove, concrete poured in a transition section and an anchoring element of the edge beam. The method is characterized in that: a. the edge beam for forming the bridge expansion and contraction groove adopts an aluminum alloy edge beam; b. the concrete poured in the transition section adopts epoxide concrete or high intensity concrete, and the high intensity concrete is selected from one of C40 steel fiber concrete and C50 fast concrete; c. the junction surface of the aluminum alloy edge beam and the transition section concrete adopts a concave-convex cross section structure, and the aluminum alloy edge beam is embedded and fixed in the poured transition section concrete. The aluminum alloy has the characteristics of light weight, high rigidity, strong corrosion-resisting properties and strong antiseptic power more than 20 years. Simultaneously, various cross dimensions can be conveniently formed, and the forming accuracy is high. The characteristic of the material is favorable for the structural design and the product machining and is favorable for installation, construction, transportation, simplification of construction procedure and rapid construction. The past cockamamie and complex construction technology is changed, the construction period is shortened, and manpower and material resources are saved. The method has good economical and social benefit.
Description
One, technical field:
The present invention relates to a kind of bridge extension joint, particularly disclose a kind of aluminium alloys bridge stretching device and manufacture method thereof.
Two, background technology:
Bridge extension joint is the chief component in the bridge floor structure, it to the driving of vehicle steadily, the application life of bridge, the view of bridge floor etc. play crucial effect.Its major function is to adapt to the beam body owing to be subjected to caused displacements such as the temperature difference, the dry shrinkage and creep of concrete and load action, and plays the effect of joint seal with works under the protection bridge.Its main performance shows telescopicing performance, road holding, water resistance and endurance quality.
Present domestic bridge extension joint has following several types basically:
1. rubber type stretching device
Such stretching device starts from early 1980s, and it has various model and specification.But structural principle is consistent basically, all adopt rubber and metal insert compacting sulfuration to form, but because such stretching device self structure performance is not good, endurance quality is poor.Therefore, it is the development trend of incompatibility highway communication, and just progressively trend is eliminated.
2. the seamless type stretching device of elastic body
Such stretching device relies on the elasticity of material itself to carry out telescopic displacement, and structure is seamless, good looking appearance, and stroke≤30mm is applicable to the bridge of little displacement.But at present practical application effect is not good, most because of material select for use improper or construction technology immature and not ideal enough.
3. formed steel construction type stretching device
Such stretching device self structure performance is good, rigidity strong, good endurance, is one of present domestic widely used bridge extension joint.But the antiseptic property of material is poor, and the sealing performance of notch is not good enough, and installation is comparatively loaded down with trivial details, and excavation produces more waste residue, and the pouring concrete needs 3～4 days ability of maintenance open to traffic, long construction period, and engineering quantity is big, influences the integrated engineering time of completion.
4. comb shape steel plate type stretching device
Such stretching device is simple in structure, whole height is low, rigidity is strong, good endurance, also is one of more bridge extension joint of present domestic application.But the same self-preserving poor performance that exists with formed steel construction type stretching device, installation is comparatively loaded down with trivial details, defectives such as cycle length.
Three, summary of the invention:
The objective of the invention is to disclose a kind of aluminium alloys bridge stretching device and manufacture method thereof, the deficiency that the different types of rridges stretching device exists in the comprehensive prior art, design that a kind of structural performance is good, rigidity is strong, the self-preserving performance is good, easy construction, short construction period, beautify the bridge extension joint of bridge floor view naturally, reach the reduction raw materials consumption, reduce cost, make it more can be based on market, reach good social benefit and economic benefit.
The present invention realizes like this, a kind of manufacture method of aluminium alloys bridge stretching device, it is characterized in that: the aluminium alloys side bar that a) adopts the concave-convex section structure is installed in it on beam body position at flexible ditch beam body preset clearance place as the side bar that forms the flexible ditch of bridge; B) adopt epoxy concrete or High Strength Concrete that changeover portion is watered concrete, make aluminium alloys side bar build-in in the changeover portion concrete of pouring, described High Strength Concrete is selected a kind of in C40 steel fiber concrete and the quick concrete of C50.A kind of aluminium alloys bridge stretching device comprises the side bar that forms the flexible ditch of bridge, the concrete and the side bar anchoring piece of changeover portion pouring, and it is characterized in that: a) side bar of the flexible ditch of bridge is the aluminium alloys side bar; B) concrete of changeover portion pouring is epoxy concrete or High Strength Concrete, and described High Strength Concrete is selected a kind of in C40 steel fiber concrete and the quick concrete of C50; C) aluminium alloys side bar and changeover portion concrete bonding surface are last, following and left, right irremovable concave-convex section structure, the aluminium alloys side bar is installed in the top of flexible ditch, aluminium alloys side bar anchoring piece has wedge mouth groove anchor plate and/or anchor bolt, anchor plate is provided with wedge mouth groove, wedge mouth groove anchor plate adopts dovetail groove to connect with the aluminium alloys side bar, anchor bolt and aluminium alloys side bar adopt Bolt Connection, wedge mouth groove anchor plate by bolt anchoring in the bridge deck structure concrete, set the neoprene waterstop in the aluminium alloys side bar groove, the concrete of changeover portion, part is mounted in the structure of side bar concave-convex section.The ditch shape that the aluminium alloys side bar forms can be the moat degree of lip-rounding, also can be for intersecting comb teeth shape.
That aluminium alloys has is in light weight, good rigidly, self corrosion resistant performance are strong, and antiseptic power can reach more than 20 years, helped the durability of stretching device, improved service life.At the edge of aluminium alloys side bar and changeover portion concrete bonding surface, be designed so that the aluminium alloys side bar can not about, about loosening concave-convex type section structure, increase adhesive strength with the changeover portion concrete.
Characteristics of the present invention are:
1. good whole force structure system
The aluminium alloys side bar that aluminium alloys bridge stretching device adopts, be to have high strength, antifatigue, corrosion resistant, wear-resisting Al-alloy material, the concrete of filling pouring is to have high strength, material that glueability is strong, pass through connection, the supporting of wedge mouth groove aluminium alloys anchor plate or bolt again, make aluminium alloys side bar, changeover portion concrete, bridge deck pavement be combined into a good whole stress system, be enough to bear the impact load effect of vehicle, improve the endurance quality of stretching device.
2. the agent structure side bar of bridge extension joint adopts the fine aluminum alloy material, this is another big change in the stretching device structure design, utilizes aluminum alloy material and the characteristic that is easy to moulding, helps structure design, help product processing, help installation, transportation.
The weight of aluminium alloys has only about 1/3rd of steel.The performance of aluminium alloys side bar and shaped steel side bar is compared as follows shown in the table:
The performance comparison sheet of aluminium alloys and shaped steel side bar
Shown in last table, aluminium alloys is similar to the intensity of steel.And comparatively speaking, both prices are very nearly the same.Aluminium alloys side bar processing is simple, the formed precision height, and planeness, straightness accuracy are good, need not to proofread and correct and reprocess, and have reduced the production routine of stretching device in the past widely, have shortened the production cycle.
3. structure width is little, the bulk strength height
This stretching device structure width can be 300mm～350mm, and structure height can be for about 65mm.Because pouring is epoxy concrete or High Strength Concrete, its intensity can reach more than the C40, again by the anchoring system of this stretching device, has improved the bulk strength after stretching device is installed.
4. simplification construction sequence, rapid construction
The installation of this stretching device is easy, and need not reserve the installation region early stage.Behind bridge deck pavement, the continuous integral construction of asphalt surface course, can simply excavate, clear up, punching, positioning and anchoring aluminium alloys side bar, pouring changeover portion concrete, because changeover portion concrete a few hours are promptly curable, with regard to energy embedding rubber fastening band, site clearing after finishing, just can be completed is open to traffic.The entire job program can be finished in one day, had simplified loaded down with trivial details, the complicated construction sequence of stretching device in the past, had reached rapid construction, had shortened the duration.
5. antiseptic property is good
Aluminium alloys has good antiseptic property, does not adopt any anti-corrosion measure, and natural antiseptic power generally more than 20 years, helps the durability of stretching device, improves service life.
6. the view of natural beauty is felt
Corrosion-resistant, the non-corrosive of aluminum alloy materials allows the people that a kind of sensation of natural beauty is arranged, and is installed in and plays the nature decoration function on the bridge floor, increases the color of U.S. for the view of whole bridge engineering.
Four, description of drawings:
Accompanying drawing 1 is the embodiment of the invention 1 a construction and installation generalized section;
Accompanying drawing 2 is aluminium alloys side bar concave-convex cross-section structures of accompanying drawing 1;
Accompanying drawing 3 is the embodiment of the invention 2 construction and installation generalized sections;
Accompanying drawing 4 is the embodiment of the invention 3 construction and installation generalized sections;
Accompanying drawing 5 is aluminium alloys side bar concave-convex cross-section structures of accompanying drawing 4.
Five, the specific embodiment:
Embodiment 1:
With reference to the accompanying drawings 1, setting stroke is a kind of aluminium alloys bridge stretching device of 80mm, its overall width is 320mm, structure height is 65mm, aluminium alloys side bar 1 highly is 62mm, two aluminium alloys side bars 1 are installed in respectively on the beam body position at flexible ditch beam body preset clearance place, the changeover portion pouring epoxy concrete 3 that side bar and bridge asphalt surface course are 5, because side bar 1 is designed to the concave-convex section structure with the bonding surface of epoxy concrete 3, therefore the epoxy concrete is mounted in the section structure of side bar, form great adhesion, make each other can not about, about, front and back three-dimensional play, this rational concave-convex structure section, it or not the size that depends on size, but depend on effective adhesive strength, side bar concave-convex section, be not limited to the shape of Fig. 2, the structure section that every other concavo-convex sections can reach the regulation adhesive strength all can be used, flexible furrow width of present embodiment and stretching device height only are a kind of embodiment, but be not limited to this size, flexible ditch shape can be the moat degree of lip-rounding, also can be for intersecting comb teeth shape, set neoprene waterstop 4 in the aluminium alloys side bar groove, aluminium alloys side bar material can adopt 7075 grade aluminium alloys, but be not limited to this trade mark, as long as intensity reaches above-mentioned comparison sheet structure with shown in the steel, other grade aluminium alloys also can.Protection of the present invention is as the criterion with claim.
Embodiment 2:
With reference to the accompanying drawings 3, two aluminium alloys side bars 1 are installed in respectively on the beam body position at flexible ditch beam body preset clearance place, the changeover portion that side bar and bridge asphalt surface course are 5 waters quick High Strength Concrete 3, the beam-ends that stretching device is installed need be provided with pre-buried anchor bolt 7, anchor bolt 7 is used for fixing and connects wedge mouth groove aluminium alloys anchor plate 6, wedge mouth groove aluminium alloys anchor plate dovetail groove be arranged on aluminium alloys side bar conjunction plane on, make its both mutual fastenings, High Strength Concrete with do not only depend on bonding surface concave-convex structure section connecting of aluminium alloys side bar, also rely on wedge mouth groove aluminium alloys anchor plate integral body, therefore more strengthened mutual adhesion.Set neoprene waterstop 4 in flexible ditch shape and the aluminum alloy materials trade mark and the groove, as embodiment 1.
Embodiment 3:
With reference to the accompanying drawings 4, two aluminium alloys side bars 1 are installed in respectively on the beam body position at flexible ditch beam body preset clearance place, the changeover portion pouring High Strength Concrete 3 that side bar and bridge asphalt surface course are 5, dope steel fibre 8 in the concrete, the beam-ends that stretching device is installed need be provided with pre-buried curving " Jiong " font reinforcing bar 9, anchor bolt 7 one ends and aluminium alloys side bar are after the concrete bonding surface adopts thread connection, when the other end is installed anchor bolt is welded on pre-buried " Jiong " font reinforcing bar 9, the aluminium alloys side bar combines with the connection of concrete and relies on bonding surface concave-convex structure section on the one hand like this, rely on anchor bolt 7 and embedded bar 9 on the other hand, increase adhesion, accompanying drawing 5 is the concave-convex structure section schematic diagram of aluminium alloys side bar, but be not limited to the shape of accompanying drawing 5, as long as reach the regulation adhesive strength.Set neoprene waterstop 4 in flexible ditch shape and the aluminum alloy materials trade mark and the groove, as
Embodiment 1.
Claims (8)
1, a kind of manufacture method of aluminium alloys bridge stretching device is characterized in that:
A) the aluminium alloys side bar that adopts the concave-convex section structure is installed in it on beam body position at flexible ditch beam body preset clearance place as the side bar that forms the flexible ditch of bridge;
B) adopt epoxy concrete or High Strength Concrete that changeover portion is watered concrete, make aluminium alloys side bar build-in in the changeover portion concrete of pouring, described High Strength Concrete is selected a kind of in C40 steel fiber concrete and the quick concrete of C50.
2, the manufacture method of aluminium alloys bridge stretching device according to claim 1 is characterized in that: aluminium alloys side bar anchoring piece adopts wedge mouth groove aluminium alloys anchor plate and/or anchor bolt, and described wedge mouth groove is a dovetail groove.
3, the manufacture method of aluminium alloys bridge stretching device according to claim 1 and 2 is characterized in that: the ditch shape that bridge extension joint aluminium alloys side bar forms adopts the moat degree of lip-rounding or intersects comb teeth shape.
4, the manufacture method of aluminium alloys bridge stretching device according to claim 3 is characterized in that: described aluminium alloys side bar adopts 7075 grade aluminium alloys.
5, a kind of by claim 1 or 2 or the 3 or 4 aluminium alloys bridge stretching devices of making, comprise the side bar that forms the flexible ditch of bridge, the concrete and the side bar anchoring piece of changeover portion pouring, it is characterized in that:
A) side bar of the flexible ditch of bridge is the aluminium alloys side bar;
B) concrete of changeover portion pouring is epoxy concrete or High Strength Concrete, and described High Strength Concrete selects in C40 steel fiber concrete and the quick concrete of C50 that it is a kind of;
C) aluminium alloys side bar and changeover portion concrete bonding surface are upper and lower and left and right irremovable concave-convex section structure;
The aluminium alloys side bar is installed in the top of flexible ditch, aluminium alloys side bar anchoring piece has wedge mouth groove anchor plate and/or anchor bolt, wedge mouth groove anchor plate adopts dovetail groove to connect with the aluminium alloys side bar, anchor bolt and aluminium alloys side bar adopt thread connection, wedge mouth groove anchor plate by bolt anchoring in the bridge deck structure concrete, set the neoprene waterstop in the aluminium alloys side bar groove, the concrete of changeover portion, part is mounted in the structure of side bar concave-convex section.
6, aluminium alloys bridge stretching device according to claim 5 is characterized in that: aluminium alloys side bar anchoring piece is wedge mouth groove aluminium alloys anchor plate and/or anchor bolt, and described wedge mouth groove is a dovetail groove.
7, aluminium alloys bridge stretching device according to claim 5 is characterized in that: the ditch that the aluminium alloys side bar of bridge extension joint forms is shaped as the moat degree of lip-rounding or intersects comb teeth shape.
8, aluminium alloys bridge stretching device according to claim 5, it is characterized in that: described aluminium alloys side bar is 7075 grade aluminium alloys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310119292 CN1226488C (en) | 2003-08-05 | 2003-12-03 | Aluminium alloy bridge expansion and cotraction device and its manufacturing method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03256267.5 | 2003-08-05 | ||
| CN03256267 | 2003-08-05 | ||
| CN 200310119292 CN1226488C (en) | 2003-08-05 | 2003-12-03 | Aluminium alloy bridge expansion and cotraction device and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
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| CN1514065A CN1514065A (en) | 2004-07-21 |
| CN1226488C true CN1226488C (en) | 2005-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310119292 Expired - Fee Related CN1226488C (en) | 2003-08-05 | 2003-12-03 | Aluminium alloy bridge expansion and cotraction device and its manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101892631B (en) * | 2010-07-30 | 2011-11-16 | 杭州科博桥梁加固养护有限公司 | Bridge expansion joint structure and construction technology thereof |
| CN112112063B (en) * | 2020-09-28 | 2022-09-27 | 单国珠 | Reinforced vibration-damping noise-reducing multidirectional displacement expansion device |
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