CN204570444U - Lightweight steel and concrete structure bridge - Google Patents
Lightweight steel and concrete structure bridge Download PDFInfo
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- CN204570444U CN204570444U CN201420794322.3U CN201420794322U CN204570444U CN 204570444 U CN204570444 U CN 204570444U CN 201420794322 U CN201420794322 U CN 201420794322U CN 204570444 U CN204570444 U CN 204570444U
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Abstract
A kind of lightweight steel and concrete structure bridge belongs to Building class.Together with technical characteristic is to be closely connected with steel work, also together with being closely connected with reinforced concrete structure, the surface layer up and down of bridge is tensile structure layer, be same as reinforced concrete structure, but reinforcing bar is used instead as prestressed steel strand band, improve twice than original reinforced steel bar strength, consumption 50 percent can be saved.Intermediate layer is Anti-bending structure layer, the structural mechanics that refer to steel work is theoretical, change hollow rigid structure layer into, steel plate in steel work is used instead as book steel plate, book steel plate is made concavo-convex steel plate, combines through horizontal two sides reinforcement and concrete, just can have the intensity of steel plate, the surface concavo-convex steel plate being applied in bridge is construction formwork, is again the steel wire binding bar of bridge.Concavo-convex steel plate is made cylindrical shell, and ratio of rigidity opening shape component strength increases several times.Therefore be not only saving steel, and a large amount of concrete can also be saved, alleviate a lot of deadweight and be called lightweight steel and concrete structure bridge.
Description
Technical field: lightweight steel and concrete structure bridge belongs to Building class
Background technology: existing concrete cast-in-situ bridge construction, workload is large, long in time limit, will drop into man power and material in a large number, also serious contaminated environment.A kind of structure technology scheme of lightweight steel and concrete structure bridge of this Corporation R & D.
The present invention is directed to above-mentioned deficiency, a kind of structural concept of lightweight steel and concrete structure bridge is provided.Lightweight steel and concrete structure bridge gives full play of structure of steel product stress, embodies energy-conserving and environment-protective, efficient bridge construction scheme.
Summary of the invention: the technical scheme of lightweight steel and concrete structure bridge of the present invention comprises New Building Materials, new builing structure, novel building engineering method.
Lightweight steel and concrete structure bridge of the present invention, adopts concavo-convex steel plate to make bridge box hat exactly, and concavo-convex steel plate forms cylindrical shell.The concavo-convex steel plate cylindrical shell that diameter is little is easily shaping without the need to adding inner bushing ring, as long as there is outer sleeve just passable.Inner bushing ring will be added inside the concavo-convex steel plate cylindrical shell that diameter is large, outside adds outer sleeve, concavo-convex steel plate cylindrical shell can make polytype cylindrical shell according to demand, the cylindrical shell skeleton of high-strength rigidity in the middle part of bridge is made up of, the rib tension skeleton that upper and lower is made up of steel strand band or reinforcing bar multiple concavo-convex steel plate cylindrical shell.Concavo-convex steel plate cylindrical shell bending resistance hollow member can present (abdomen) portion in high-strength light, and rib tension skeleton can present the firm upper layer of high-strength heavy and cutting optimal.Form lightweight steel and concrete structure bridge after concreting, just can find out that the hollow structure amount of concrete in intermediate layer greatly reduces from view section, weight reduction is a lot, and the consumption of steel is also corresponding can minimizing, embodies energy-conservation effect completely.
Lightweight steel and concrete structure bridge of the present invention, its technical characteristic is novel constructional materials, concavo-convex steel plate is made machined for steel sheet, then at concavo-convex steel plate two sides or one side transversal reinforcement, as lightweight steel and concrete structure bridge steel shell, the material ordinary circumstance of reinforcement adopts package steel strip, it is very high that the spot welding of row's welding machine tool adds efficiency, the two-way rigidity of concavo-convex steel plate after transversal reinforcement is all very high, not only substituted steel wire binding bar but also alternate template, as long as bridge building operations bracing frame, processing equipment will how long can to on-the-spot concavo-convex steel plate length, the speed of laying is also very fast, several days some months duration just completed.Concavo-convex steel plate is rolled into cylindrical shell, and the facies anterior lateralis of the concavo-convex steel plate cylindrical shell volume that diameter is less must first use steel band transversal reinforcement, the inside without the need to reinforcement, without the need to adding inner bushing ring, as long as add outer sleeve.Will add inner sleeve inside the concavo-convex steel plate cylindrical shell that diameter is a little bigger, firm steel band, tubing intercepting, reinforcing bar etc. wanted by inner sleeve material.The external face of concavo-convex steel plate cylinder adds outer sleeve, and steel band and steel wire and so on that outer sleeve material can be soft, can increase rigidity after concavo-convex steel plate cylindrical shell adds inner sleeve and outer sleeve, improve bearing capacity, more close better as ring.The shape of concavo-convex steel plate cylindrical shell can be selected according to bridge construction, make circle, ellipse, square, rectangle etc.Select the thickness of concavo-convex steel plate, concavo-convex waveform, the concavo-convex depth, select the caliber size of concavo-convex steel plate cylindrical shell.Also can need concavo-convex steel plate cylindrical shell reinforcement according to structure, i.e. longitudinal reinforcement and transversal reinforcement.The high-strength steels such as steel strand band, reinforcing bar, steel strand that concavo-convex steel plate cylindrical shell can also adopt the twisting of band steel to form carry out longitudinal reinforcement.The method of longitudinal reinforcement can adopt colligation and concavo-convex steel plate cylindrical shell to combine closely, also can add respectively.
Lightweight steel and concrete structure bridge New Building Materials also have a kind of being with steel to make steel strand band.Band steel becomes the steel strand band of screw type (fried dough twist rod type) through twisting, steel strand band can adopt the band steel of any width and thickness to make, as long as equipment can be shaped to the standard of steel strand band, more small intensity is higher for the screw diameter of steel strand band and the ratio of pitch.Although be smooth surface, also more firm with Concrete Bond Strength screw-thread steel, be steel strand band helix-style contact face, be engaged with concrete tightr, be embodied in the real phenomena in specimen test.Steel strand band can play steel strength value more than 80%, embodies the advantage of prestressing steel completely, the energy-conservation value of prestressed structure application.With equal number, same levels steel in building structure, be obviously that steel strand band structure is higher than bar construction, the intensity of opposing natural calamity also improves relatively.
The structural concept of lightweight steel and concrete structure bridge of the present invention is exactly the scheme that concavo-convex steel plate cylindrical shell and steel strand band, reinforcing bar, steel strand are combined according to structural arrangement.I.e. bridge upper and lower surface layer tensile structure layer thickness more than 200 millimeters, lays steel strand band, lays reinforcing bar or lay steel strand.Two sides of bridge are also close-packed arrays steel strand bands.Bridge intermediate layer adds the concavo-convex steel plate cylindrical shell of bending resistance, and the hollow rigid body of multiple concavo-convex steel plate cylindrical shell arrangement superposition is high-strength light bearing capacity rigid body.Be both saving steels, save concrete, save the light-weight building structural concept of template.
The building engineering method of lightweight steel and concrete structure bridge of the present invention is exactly New Building Materials processing mode method, and the operating condition of new builing structure scheme and method, adopts novel building engineering method to implement.
Lightweight steel and concrete structure bridge of the present invention, be be closely connected with steel work together with, also together with being closely connected with reinforced concrete structure, the surface layer up and down of bridge is tensile structure layer, be same as reinforced concrete structure, but reinforcing bar is used instead as prestressed steel strand band, improves twice, can save consumption 50 percent than original reinforced steel bar strength.Intermediate layer is Anti-bending structure layer, the structural mechanics that refer to steel work is theoretical, change hollow rigid structure layer into, steel plate in steel work is used instead as book steel plate, book steel plate is made concavo-convex steel plate, combines through horizontal two sides reinforcement and concrete, just can have the intensity of steel plate, the surface concavo-convex steel plate being applied in bridge is construction formwork, is again the steel wire binding bar of bridge.Concavo-convex steel plate is made cylindrical shell, and ratio of rigidity opening shape component strength increases several times.Therefore be not only saving steel, and a large amount of concrete can also be saved, alleviate a lot of deadweight and be called lightweight steel and concrete structure bridge.
Accompanying drawing illustrates:
Fig. 1 is the concavo-convex steel plate box hat schematic diagram of lightweight steel and concrete structure bridge of the present invention.
Fig. 2 is the steel strand band schematic diagram of lightweight steel and concrete structure bridge of the present invention.
Fig. 3 is the buckplate steel cylinder schematic diagram of lightweight steel and concrete structure bridge of the present invention.
Fig. 4 is the steelframe arrangement schematic diagram of lightweight steel and concrete structure bridge of the present invention.
Detailed description of the invention: as shown in Fig. 1,4, the present invention includes steel sheet and become concavo-convex steel plate (5) through die mould, add steel band (6) in concavo-convex steel sheet (5) two sides (or one side) spot welding, form the concavo-convex steel plate box hat (1) of the bridge of transversal reinforcement.Alternate template and stirrup, be rolled into concavo-convex steel plate cylindrical shell (3) concavo-convex steel plate (5).The facies anterior lateralis of concavo-convex steel plate cylindrical shell (3) volume that diameter is less first must use steel band (6) transversal reinforcement, the inside without the need to reinforcement, without the need to adding inner bushing ring (9) as long as add outer sleeve (10).Will add inner sleeve (9) inside the concavo-convex steel plate cylindrical shell (3) that diameter is a little bigger, inner sleeve (9) material wants firm tubing to intercept the section material of 30 to 50 mm in width, or makes with band steel, reinforcing bar.Concavo-convex steel plate cylindrical shell (3) outside adds outer sleeve (10), steel band and steel wire and so on that outer sleeve (10) material can be soft, and the mode of steel band, steel wire, reinforcing bar spot welding or colligation is formed.
Band steel is shaped to steel strand band (2) of fried dough twist rod (spiral) type through mechanical twisting, is prestressed steel strand band (2) eliminating elongation per unit length.Can need according to structure thickness and the width of selecting steel strand band (2), close-packed arrays steel strand band (2), the connection spiral overlap joint of steel strand band (2) need not weld.Reinforcing bar or steel strand (7) can be added when steel strand band (2) cross section is inadequate, form the tension skeleton of lightweight steel and concrete structure bridge.Stirrup (8), structure muscle (11) is the setting of concavo-convex steel plate cylindrical shell arrangement Fold additon location, the width control system 50 to 100 millimeters of stirrup (8), as long as vibrating head can operate just passable when concreting is vibrated, the spacing of stirrup (8) can several meters arrange one.The spacing of structure muscle (11) can one meter arrange one, also can several meters one.The connector place of concavo-convex steel plate cylindrical shell, groove is embedded with the steel bar end or steel pipe head that are no less than one meter long, the diameter of steel bar end and steel pipe head is no less than the degree of depth of concavo-convex steel plate cylindrical shell (3) groove, could use iron wire tighten, has overall rigidity after concreting.For guaranteeing that bottom tensile structure layer concrete is built closely knit, preferably first build bottom tensile structure layer, then install concavo-convex steel plate cylindrical shell (3), construction in layer can also alleviate the pressure of bridge support frame, reduces the quantity of bracing frame.
The prefabricated production mechanization of lightweight steel and concrete structure bridge construction, on-site consolidation is simplified, reduction of erection time decreasing pollution, and job site does not produce building waste, and it is high that energy-conserving and environment-protective reduction cost reduces costs efficiency.
Claims (3)
1. a lightweight steel and concrete structure bridge comprises steel sheet and becomes concavo-convex steel plate (5) through die mould, steel band (6) is added on concavo-convex steel sheet (5) two sides or indirect welding, form the concavo-convex steel plate box hat (1) of the bridge of transversal reinforcement, alternate template and stirrup, concavo-convex steel plate is rolled into concavo-convex steel plate cylindrical shell (3), convex steel plate cylindrical shell (3) size is determined according to bridge span, the facies anterior lateralis of concavo-convex steel plate cylindrical shell (3) volume that diameter is less is first with row's welding steel band (6) transversal reinforcement, the inside is without the need to reinforcement, without the need to adding inner bushing ring (9) as long as add outer sleeve (10), inner sleeve (9) to be added inside the concavo-convex steel plate cylindrical shell (3) that diameter is a little bigger, inner sleeve (9) material wants firm tubing to intercept the section material of 30 to 50 mm in width, or with being with steel, reinforcing bar is made, concavo-convex steel plate cylindrical shell (3) outside adds outer sleeve (10), outer sleeve (10) material can be soft steel band and steel wire and so on, steel band, steel wire, the mode of reinforcing bar spot welding or colligation is formed, it is characterized in that being with steel strand band (2) that is that steel is shaped to fried dough twist rod type through mechanical twisting or screw type, it is prestressed steel strand band (2) eliminating elongation per unit length, thickness and the width of selecting steel strand band (2) can be needed according to bridge construction span, close-packed arrays steel strand band (2), the connection spiral overlap joint of steel strand band (2) need not weld, reinforcing bar or steel strand (7) can be added when steel strand band (2) cross section is inadequate, form the tension skeleton of lightweight steel and concrete structure bridge, stirrup (8), structure muscle (11) is the setting of concavo-convex steel plate cylindrical shell arrangement Fold additon location, the width control system 50 to 100 millimeters of stirrup (8), as long as vibrating head can operate just passable when concreting is vibrated, the spacing of stirrup (8) can several meters arrange one, structure muscle (11) spacing can one meter arrange one, also can several meters one, the connector place of concavo-convex steel plate cylindrical shell, groove is embedded with the steel bar end or steel pipe head that are no less than one meter long, the diameter of steel bar end and steel pipe head is no less than the degree of depth of concavo-convex steel plate cylindrical shell (3) groove, iron wire tighten could be used, overall rigidity is had for guaranteeing that bottom tensile structure layer concrete is built closely knit after concreting, preferably first build bottom tensile structure layer, concavo-convex steel plate cylindrical shell (3) is then installed, construction in layer can also alleviate the pressure of bridge support frame, reduce the quantity of bracing frame, together with its technical characteristic is to be closely connected with steel work, also together with being closely connected with reinforced concrete structure, the surface layer up and down of bridge is tensile structure layer, be same as reinforced concrete structure, but reinforcing bar is used instead as prestressed steel strand band (2), intermediate layer changes hollow rigid structure layer into, steel plate in steel work is used instead as book steel plate, book steel plate is made concavo-convex steel plate (5), combine through horizontal two sides reinforcement and concrete, just can there is the intensity of steel plate, the surface concavo-convex steel plate (5) being applied in bridge is construction formwork, it is again the steel wire binding bar of bridge, concavo-convex steel plate (5) is made polytype cylindrical shell, ratio of rigidity opening shape component strength increases several times, therefore saving steel is not only, and a large amount of concrete can also be saved, alleviate a lot of deadweight and be called lightweight steel and concrete structure bridge.
2. a kind of lightweight steel and concrete structure bridge according to claim 1, its technical characteristic is to adopt New Building Materials, new builing structure, the concavo-convex steel plate box hat (1) of lightweight steel and concrete structure bridge made by concavo-convex steel plate (5), apply as bridge construction template and bridge reinforced bar skeleton spacer stirrup, concavo-convex steel plate (5) is rolled into concavo-convex steel plate cylindrical shell (3) and adds the intermediate layer formation cored steel body being located at bridge, (2) are with to be arranged closely in two sides of bridge having prestressed steel strand, be arranged closely in the upper and lower surface layer of bridge, tensile structure layer also can lay steel strand band (2), lay reinforcing bar (7) or lay steel strand (7), meet the bearing capacity of lightweight steel and concrete structure bridge.
3. according to claim 1, with lightweight steel and concrete structure bridge according to claim 2, its technical characteristic is, adopts steel sheet to make concavo-convex steel plate (5), is applied to the concavo-convex steel plate box hat (1) of bridge, the concavo-convex steel plate cylindrical shell (3) in bridge intermediate layer, the hollow rigid body of multiple concavo-convex steel plate cylindrical shells (3) arrangement superposition is high-strength light bearing capacity rigid body, is both saving steels, save concrete, save the light-weight building structural concept of template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420794322.3U CN204570444U (en) | 2014-12-06 | 2014-12-06 | Lightweight steel and concrete structure bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420794322.3U CN204570444U (en) | 2014-12-06 | 2014-12-06 | Lightweight steel and concrete structure bridge |
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| Publication Number | Publication Date |
|---|---|
| CN204570444U true CN204570444U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420794322.3U Expired - Fee Related CN204570444U (en) | 2014-12-06 | 2014-12-06 | Lightweight steel and concrete structure bridge |
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| CN (1) | CN204570444U (en) |
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2014
- 2014-12-06 CN CN201420794322.3U patent/CN204570444U/en not_active Expired - Fee Related
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Granted publication date: 20150819 Termination date: 20151206 |
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