CN117005290A - Assembled steel temporary bridge and construction method thereof - Google Patents
Assembled steel temporary bridge and construction method thereof Download PDFInfo
- Publication number
- CN117005290A CN117005290A CN202310993892.9A CN202310993892A CN117005290A CN 117005290 A CN117005290 A CN 117005290A CN 202310993892 A CN202310993892 A CN 202310993892A CN 117005290 A CN117005290 A CN 117005290A
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- prefabricated foundation
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- girder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 436
- 239000010959 steel Substances 0.000 title claims abstract description 436
- 238000010276 construction Methods 0.000 title abstract description 32
- 239000004575 stone Substances 0.000 claims abstract description 25
- 238000005253 cladding Methods 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 230000006641 stabilisation Effects 0.000 claims description 13
- 238000011105 stabilization Methods 0.000 claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 240000005002 Erythronium dens canis Species 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The application relates to an assembled steel temporary bridge and a construction method thereof, wherein the main technical scheme is that the assembled steel temporary bridge comprises two supporting components, a gap filling component and a bridge body component, wherein the two supporting components sequentially comprise a first crushed stone stable base layer and prefabricated foundation blocks from bottom to top, the prefabricated foundation blocks are arranged into a plurality of blocks and are paved on the first crushed stone stable base layer, the outer surfaces of the prefabricated foundation blocks are fixedly provided with cladding steel sleeves, and the cladding steel sleeves of adjacent prefabricated foundation blocks are detachably connected through connecting steel structures; the prefabricated foundation block is detachably connected with a vertical inserted link, the joint filling assembly comprises a back plate and a filling slurry layer, the inserted link horizontally limits the back plate, and the filling slurry layer is filled in a gap between the back plate and the section of the existing road; the two ends of the bridge body component in the length direction are respectively abutted to the upper surfaces of the prefabricated foundation blocks of the two supporting components. The application has the effect of improving the construction efficiency of the steel temporary bridge.
Description
Technical Field
The application relates to the field of steel temporary bridges, in particular to an assembled steel temporary bridge and a construction method thereof.
Background
When the municipal road is renovated, steel temporary bridges are commonly used for construction, for example, when the roadbed of the road or a pipeline below the construction road is renovated, the road needs to be cut off and excavated to expose a construction area, and then the steel temporary bridges are additionally arranged right above the construction area. The steel temporary bridge comprises cast-in-situ foundations and bridge deck structures, wherein the cast-in-situ foundations are arranged at two ends of a construction area, the bridge deck structures extend along the length direction of a road, two ends of the bridge deck structures are respectively abutted to the two cast-in-situ foundations, and the bridge deck structures are positioned right above the construction area.
However, the construction period of the cast-in-situ foundation is longer, and a certain maintenance period is needed, so that the construction period of the steel temporary bridge is correspondingly prolonged, and the normal passing of vehicles is affected.
Disclosure of Invention
The application provides an assembled steel temporary bridge and a construction method thereof in order to shorten the construction period of the steel temporary bridge.
The application provides an assembled steel bridge, which adopts the following technical scheme:
the assembled steel temporary bridge comprises two support assemblies, a gap filling assembly and a bridge body assembly, wherein the two support assemblies sequentially comprise a first crushed stone stabilizing base layer and prefabricated foundation blocks from bottom to top, the prefabricated foundation blocks are arranged into a plurality of blocks and are paved on the first crushed stone stabilizing base layer, the outer surfaces of the prefabricated foundation blocks are fixedly provided with cladding steel sleeves, and the cladding steel sleeves of adjacent prefabricated foundation blocks are detachably connected through connecting steel structures; the prefabricated foundation block is detachably connected with a vertical inserted link, the joint filling assembly comprises a back plate and a filling slurry layer, the inserted link horizontally limits the back plate, and the filling slurry layer is filled in a gap between the back plate and the section of the existing road; the two ends of the bridge body component in the length direction are respectively abutted to the upper surfaces of the prefabricated foundation blocks of the two supporting components.
Through adopting above-mentioned technical scheme, at first, utilize prefabricated basic block and first rubble stable basic unit as the support basis of steel temporary bridge to utilize the connection steel structure to dismantle the connection, it possesses the characteristics of quick construction, can greatly shorten the construction cycle of steel temporary bridge.
Secondly, through setting up the cooperation of cladding steel bushing and connecting steel structure, can ensure the joint strength between the prefabricated basic piece to ensure bearing capacity.
And thirdly, by arranging the back plate and the filling slurry layer, the steel temporary bridge and the existing road section can be connected and protected, so that the occurrence of collision and abrasion of the existing road section caused by vibration displacement of the steel temporary bridge is reduced.
And connect steel structure, inserted bar and backplate more easily to dismantle, thinner filling thick liquid layer later stage is also easily shoveled simultaneously to improve the dismantlement speed, and be convenient for the reutilization of each part.
Optionally, the cladding steel sleeve is arranged on a side edge of the prefabricated foundation block along the width direction of the bridge body assembly, a slot is concavely formed in the vertical middle of the cladding steel sleeve, the surface of the cladding steel sleeve is set to be a first inclined surface, and the first inclined surfaces of the cladding steel sleeves of two adjacent prefabricated foundation blocks are combined to form a V-shaped slot; the connecting steel structure comprises first square steel and two steel bars, the steel bars are arranged along the length direction of the first square steel, the two steel bars are respectively fixed on the upper surface and the lower surface of the first square steel, the first square steel is inserted into the slot along the width direction of the prefabricated foundation block, and the steel bars are inserted into the V-shaped slot.
Through adopting above-mentioned technical scheme, through the cooperation of first party's steel and slot to and the cooperation of billet and V type groove, can greatly improve the area of connection between the adjacent prefabricated basic piece, thereby improve joint strength.
Optionally, the number of the prefabricated foundation blocks is two, the prefabricated foundation blocks are distributed at intervals along the width direction of the bridge body assembly, the four peripheral surfaces of the prefabricated foundation blocks are covered by the cladding steel sleeve, the surfaces of the cladding steel sleeve, which are positioned at two sides of the prefabricated foundation blocks in the length direction, are provided with second inclined surfaces, and clamping grooves are concavely formed in the middle of the surfaces of the cladding steel sleeve, which are positioned at two sides of the prefabricated foundation blocks in the width direction; the supporting assembly further comprises a plurality of steel rails and a plurality of steel beams, the steel rails extend along the width direction of the bridge body assembly, the steel rails are positioned in the first stone stabilizing base layer, the steel beams extend along the length direction of the bridge body assembly, the cross sections of the steel beams are right-angled triangles, the two steel beams are respectively positioned at two sides of the length direction of the prefabricated base block, the lower half parts of the steel beams are embedded into the first stone stabilizing collecting layer, the horizontal side surfaces of the steel beams are abutted to the upper surfaces of the steel rails, the second inclined surfaces of the cladding steel sleeves are attached to inclined surfaces of the steel beams, two similar steel beams of the two prefabricated base blocks are named as first steel beams, the other two steel beams are named as second steel beams, and the vertical side surfaces of the two first steel beams are connected; the connecting steel structure comprises two transverse square steels and two longitudinal square steels, wherein the transverse square steels extend along the length direction of the prefabricated foundation block and are matched with clamping grooves on two identical sides at the same time, the longitudinal square steels extend along the width direction of the prefabricated foundation block, the longitudinal square steels are abutted to the vertical side faces of the second steel beam, and the longitudinal square steels are fixedly connected with the end parts of the transverse square steels.
Through adopting above-mentioned technical scheme, when the vehicle walks through steel temporary bridge, the prefabricated foundation piece receives down pressure, and this down pressure will be through the laminating of second inclined plane and girder steel inclined plane and become horizontal component, and the horizontal component of two first girder steel offsets each other, and the horizontal component of second girder steel then is exerted on vertical square steel and horizontal square steel, and vertical square steel and horizontal square steel possess good tensile ability to effectively resist this horizontal component, thereby greatly improved the compressive capacity of prefabricated foundation piece.
Optionally, the upper groove wall of the clamping groove is a wavy groove wall, the lower groove wall of the clamping groove is a straight groove wall, the transverse square steel is wavy, the upper surface of the trough of the transverse square steel is abutted to the trough of the wavy groove wall, and the lower surface of the trough of the transverse square steel is abutted to the straight groove wall.
Through adopting above-mentioned technical scheme, through setting up wavy horizontal square steel, when prefabricated foundation piece receives down force and converts to horizontal component, horizontal component has the trend of tensile horizontal square steel, and horizontal square steel has the tensile deformation trend promptly, and when horizontal square steel was tensile, the trough department of horizontal square steel will shift upwards to apply up-force to prefabricated foundation piece, thereby offset the down force of prefabricated foundation piece to a certain extent, and then improve prefabricated foundation piece's compressive capacity.
Optionally, wear to be equipped with in the horizontal square steel and follow self length direction first steel strand wires that extend, first steel strand wires and the crest department and the trough department butt of horizontal square steel inner wall, the tip of first steel strand wires with horizontal square steel fixed connection, first steel strand wires are the tight state.
Through adopting above-mentioned technical scheme, through setting up the first steel strand wires that tighten, the pulling force of first steel strand wires is exerted on horizontal square steel for horizontal square steel possesses prestressing force, thereby improves the tensile ability of horizontal square steel, and then improves the compressive capacity of prefabricated basic piece.
Optionally, vertical side department of first girder steel is equipped with the pivot, and the pivot extends along first girder steel length direction, and the pivot rotates with first girder steel to be connected, and the pivot slides along self length direction with first girder steel and is connected, fixedly connected with cam in the pivot, and the outer peripheral face of cam is established to circular arc section and protruding arc section, the surface of circular arc section is equipped with the dogtooth, the vertical side of first girder steel is sunken to be equipped with along the circular arc recess that first girder steel length direction extends, and the shape and the circular arc section looks adaptation of circular arc recess, and the circular arc recess includes tooth's socket section and toothless section, the tooth's socket of tooth's socket section with protruding tooth cooperatees, protruding arc section butt is on the vertical side of adjacent first girder steel.
Through adopting above-mentioned technical scheme, when the steel temporary bridge receives the downforce of vehicle for a long time, the steel temporary bridge will take place certain subsidence, at this moment, can be through the horizontal migration pivot, make the dogtooth break away from the tooth's socket of tooth's socket section, the dogtooth removes to toothless section this moment, then rotate the pivot, make the convex arc section of cam deflect downwards, the convex arc section changes with the butt point of the vertical side of first girder steel, in order to force two first girder steel to keep away from each other, the distance between first girder steel and the second girder steel shortens, then remove the pivot, make the dogtooth of cam and the tooth's socket of tooth's socket section mesh again, in order to fix the position of cam, at this moment, because the inclined plane of first girder steel and the cooperation of the second inclined plane of prefabricated basic piece, with the prefabricated basic piece of lifting, make the bridge subassembly flush with the surface of existing road, in order to normally travel of vehicle.
Optionally, be equipped with the second steel strand wires between first girder steel and the second girder steel, the sharp angle department in below of second girder steel is equipped with the go-between, the sharp angle department in below of first girder steel is equipped with the guide bar, the inclined plane of first girder steel and second girder steel all is equipped with the perforation, the cam is fixed with the clamp ring, the one end and the go-between fixed connection of second steel strand wires, the other end of second steel strand wires passes the perforation of second girder steel in proper order, the perforation of first girder steel, downwards bypasses the guide bar and twines fixedly with the clamp ring, the convex arc of cam swings downwards, the clamp ring tightens up the second steel strand wires.
Through adopting above-mentioned technical scheme, at first, when the cam rotates, tighten up the ring and tighten up the second steel strand wires, the second steel strand wires pull first girder steel and second girder steel and are close to each other to improve prefabricated basic block's lifting effect.
Secondly, through setting up the route of arranging of second steel strand wires, the tightening force of second steel strand wires is through being applied to the bottom of first girder steel and second girder steel to the resistance that produces when effectively resisting first girder steel and second girder steel and remove, turn on one's side with the removal of reduction first girder steel and second girder steel.
Optionally, the tip of horizontal square steel is fixed with the bolt seat, and bolt seat threaded connection has the fastening bolt of slope setting, fastening bolt's tip butt in the surface of vertical square steel deviating from the second girder steel.
Through adopting above-mentioned technical scheme, through fastening bolt's butt for the connection of vertical square steel and horizontal square steel is adjustable, thereby makes vertical square steel and second square steel keep the butt state.
Optionally, the outer side of the second steel beam is filled with a second macadam stabilization base layer.
By adopting the technical scheme, the horizontal component force born by the second steel beam is transferred to the second crushed stone stabilizing base layer, so that the resistance of the horizontal component force is improved.
The application provides an assembled steel temporary bridge and a construction method thereof, which adopts the following technical scheme:
a construction method of an assembled steel temporary bridge comprises the following steps: s1, paving a first macadam stabilization base layer, wherein the first macadam stabilization base layer is paved in a divided mode, and a geogrid is paved on cement macadam stabilization materials paved for the first time; s2, hoisting the prefabricated foundation blocks to the upper surface of the first crushed stone stabilized base, then applying downward load to the prefabricated foundation blocks until the upper surfaces of the prefabricated foundation blocks are flush, aligning the slots of the adjacent prefabricated foundation blocks, inserting first square steel into the slots, inserting the steel bars into the V-shaped slots, and relieving the downward load; s3, inserting the inserted link into an insertion hole on the upper surface of the prefabricated foundation block, placing the backboard in a position close to the section of the existing road, wherein the lower surface of the backboard is abutted to the upper surface of the prefabricated foundation block, and one side surface of the backboard is abutted to the inserted link; s4, grouting a gap between the backboard and the section of the existing road to form a filling slurry layer; s5, hoisting the bridge body assembly to the prefabricated foundation block.
Through adopting above-mentioned technical scheme, at first, assembly type construction can greatly shorten the efficiency of construction of steel temporary bridge to the later stage is removable, the cyclic utilization of being convenient for.
Secondly, by applying a downward static pressure load, the first crushed stone stabilizing base layer can be ensured to be kept in a compact state, the supporting compactness of the prefabricated foundation block and the first crushed stone stabilizing base layer is improved, and the prefabricated foundation block is subjected to height adjustment by utilizing a downward pressure force so as to be convenient for alignment of the slots, and the accurate insertion of first square steel is facilitated, so that the connecting effect between adjacent prefabricated foundation blocks is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the prefabricated foundation blocks and the first crushed stone stabilized base are used as supporting foundations of the steel temporary bridge, and the steel temporary bridge is detachably connected by connecting steel structures, so that the construction period of the steel temporary bridge can be greatly shortened, and the steel temporary bridge and the existing road section can be connected and protected by arranging the back plate and the filling slurry layer, so that the occurrence of collision and abrasion caused by vibration displacement of the steel temporary bridge to the existing road section is reduced;
2. by arranging the first steel beams, the second steel beams, the transverse square steel and the longitudinal square steel, when the prefabricated foundation block is subjected to downward pressure, the downward pressure is converted into horizontal component force through the joint of the second inclined surface and the inclined surface of the steel beam, the horizontal component force of the two first steel beams is counteracted, the horizontal component force of the second steel beams is applied to the longitudinal square steel and the transverse square steel, and the longitudinal square steel and the transverse square steel have good tensile capacity, so that the horizontal component force is effectively resisted, and the compressive capacity of the prefabricated foundation block is greatly improved;
3. by arranging the wavy transverse square steel, when the prefabricated foundation block is subjected to downward pressure and converted to horizontal component force, the transverse square steel is stretched, so that the trough of the transverse square steel moves upwards to apply upward pressure to the prefabricated foundation block, the downward pressure of the prefabricated foundation block is offset to a certain extent, and the compressive capacity of the prefabricated foundation block is improved;
4. when the steel temporary bridge subsides, the accessible rotates the pivot for the protruding arc section of cam deflects downwards, and the butt point of protruding arc section and the vertical side of first girder steel changes, so that two first girder steel keep away from each other with forcing, and the distance between first girder steel and the second girder steel shortens, utilizes the cooperation of the inclined plane of first girder steel and the second inclined plane of prefabricated basic piece, will rise prefabricated basic piece, makes the bridge body subassembly flush with the surface of existing road, so that the vehicle normally travels.
Drawings
Fig. 1 is an exploded view of the fabricated steel bridge of example 1.
Fig. 2 is a schematic view of the support assembly of embodiment 1.
Fig. 3 is a cross-sectional view of the support assembly of embodiment 1.
Fig. 4 is a schematic view of the support assembly of embodiment 2.
Fig. 5 is a cross-sectional view of the support assembly of embodiment 2.
Fig. 6 is a partial enlarged view at a in fig. 4.
Fig. 7 is a cross-sectional view of the support assembly of embodiment 3.
Fig. 8 is a partial enlarged view at B in fig. 7.
Fig. 9 is a cross-sectional view of the support assembly of embodiment 4.
Fig. 10 is an exploded view of the distance adjustment structure of embodiment 4.
Fig. 11 is a partial enlarged view at C in fig. 10.
Fig. 12 is a cross-sectional view of the support assembly of embodiment 5.
Reference numerals illustrate: 1. prefabricating a foundation block; 2. coating a steel sleeve; 3. connecting a steel structure; 5. a distance adjusting structure; 10. a support assembly; 100. the existing road; 11. a first crushed stone stabilizing base layer; 12. a hanging ring; 13. a shock pad; 14. a first steel beam; 15. a second steel beam; 16. a steel rail; 17. a second ballast stabilizing base; 20. a bridge assembly; 201. a spandrel girder body; 202. a bridge deck; 21. a slot; 22. a clamping groove; 221. wave groove walls; 222. a straight groove wall; 23. a second inclined surface; 30. a caulking assembly; 301. a rod; 302. a back plate; 303. longitudinal I-steel; 31. a first square steel; 32. a steel bar; 33. a pull ring; 34. transverse square steel; 341. a chute; 342. a bolt seat; 343. a fastening bolt; 344. a first steel strand; 35. longitudinal square steel; 351. a slide block; 51. a rotating shaft; 52. a cam; 521. a convex arc section; 522. a circular arc section; 523. convex teeth; 53. a rotating seat; 54. arc grooves; 541. a tooth slot section; 542. a toothless section; 61. a connecting ring; 62. a guide rod; 63. a second steel strand; 64. perforating; 65. and (5) a tightening ring.
Detailed Description
The application is described in further detail below with reference to fig. 1-12.
The embodiment 1 of the application discloses an assembled steel bridge.
Referring to fig. 1, an assembled steel temporary bridge includes a supporting component 10, a caulking component 30 and a bridge body component 20, the supporting component 10 is two, the two supporting components 10 are respectively arranged at two ends in a road excavation area, the bridge body component 20 extends along the length direction of an existing road 100, two ends of the bridge body component 20 in the length direction are respectively abutted to the two supporting components 10, namely, the supporting component 10 plays a role of supporting the bridge body component 20, the caulking component 30 is arranged between the bridge body component 20 and the section of the existing road 100, so that gaps between the bridge body component 20 and the section of the existing road 100 are filled, and the running stability of a vehicle is improved.
As shown in fig. 2 and 3, the support assembly 10 sequentially comprises a first crushed stone stabilized base 11 and a prefabricated foundation block 1 from bottom to top, wherein the first crushed stone stabilized base 11 is paved by cement crushed stone stabilized materials, and a geogrid is clamped in the first crushed stone stabilized base 11 so as to improve stability.
The prefabricated foundation block 1 is set to the polylith, and prefabricated foundation block 1 is set to two in this embodiment, and two prefabricated foundation blocks 1 arrange along existing road 100 width direction, are equipped with rings 12 on the prefabricated foundation block 1, utilize the mode of hoist and mount to lay prefabricated foundation block 1 on first rubble stable basic unit 11.
The outer surface of the prefabricated foundation block 1 is fixedly provided with a cladding steel sleeve 2, in the embodiment, the cladding steel sleeve 2 is arranged on two side surfaces of the prefabricated foundation block 1 along the length direction of the prefabricated foundation block, the surface of the cladding steel sleeve 2 is set to be a first inclined surface, the first inclined surfaces of the cladding steel sleeves 2 of two adjacent prefabricated foundation blocks 1 are combined to form a V-shaped groove, and the opening of the V-shaped groove is upwards arranged; the vertical middle part concave forming of cladding steel bushing 2 has slot 21, and slot 21 runs through the setting along the width direction of prefabricated basic piece 1.
The cladding steel sleeves 2 of adjacent prefabricated foundation blocks 1 are detachably connected through a connecting steel structure 3, in the embodiment, the connecting steel structure 3 comprises a first square steel 31 and two steel bars 32, the steel bars 32 are arranged along the length direction of the first square steel 31, the two steel bars 32 are respectively fixed on the upper surface and the lower surface of the first square steel 31, and the end parts of the two steel bars 32 are fixedly connected through a pull ring 33.
The first square steel 31 can be inserted into the slot 21 along the width direction of the prefabricated foundation block 1, and meanwhile the steel bar 32 is inserted into the V-shaped slot, so that the connection area between the adjacent prefabricated foundation blocks 1 can be greatly improved through the matching of the first square steel 31 and the slot 21 and the matching of the steel bar 32 and the V-shaped slot, and the connection strength is improved.
As shown in fig. 2, the prefabricated foundation block 1 is detachably connected with a vertical inserting rod 301, specifically, a vertical inserting hole is formed at the edge of the upper surface of the prefabricated foundation block 1, the inserting rod 301 can be inserted into the inserting hole, and the inserting hole can be arranged at four sides of the upper surface of the prefabricated foundation block 1. In this embodiment, a longitudinal i-beam 303 is further fixed to one side of the prefabricated foundation block 1, the longitudinal i-beam 303 extends along the length direction of the existing road 100, and an insertion hole for inserting the insertion rod 301 is also formed in the longitudinal i-beam 303; the fixing manner may be welding, specifically, welding the longitudinal i-steel 303 on the upper portion of the cladding steel sleeve 2, and cutting and re-welding the longitudinal i-steel 303 according to the widening requirement of the existing road.
The caulking assembly 30 includes a back plate 302 and a filling slurry layer (not shown in the drawings), in this embodiment, the back plate 302 is provided in plurality, the plurality of back plates 302 are respectively provided along the width direction of the existing road 100 and the length direction of the existing road 100, the inserting rod 301 horizontally limits the back plate 302, the back plate 302 is disposed opposite to the section interval of the existing road 100, and the filling slurry layer is filled in the gap between the back plate 302 and the section of the existing road 100.
The bridge body assembly 20 comprises a bearing frame body and a bridge deck plate 202, wherein the bearing frame body is composed of a plurality of I-shaped steel in longitudinal and transverse arrangement, the bridge deck plate 202 can be of a steel plate structure, the surface of the bridge deck plate 202 is provided with an anti-slip surface, the bridge deck plate 202 can be welded and fixed on the bearing frame body, the bearing frame body can be directly erected on the upper surface of the prefabricated foundation block 1, a shock pad 13 can be arranged on the upper surface of the prefabricated foundation block 1 in advance, and the bearing frame body is erected on the shock pad 13; in addition, since the plurality of bridge modules 20 are provided, and the bridge modules 20 are sequentially arranged in the width direction of the existing road, the bridge modules 20 can be assembled in a step-by-step manner according to the widening of the excavation area of the existing road.
Embodiment 1 also discloses a construction method of the assembled steel temporary bridge, which comprises the following steps:
s1, paving a first macadam stabilization base layer 11, paving a geogrid on cement macadam stabilization materials paved for the first time, and covering the geogrid by cement macadam stabilization materials paved for the second time to form the first macadam stabilization base layer 11.
S2, hoisting the prefabricated foundation blocks 1 to the upper surface of the first macadam stabilization base layer 11, then applying downward load to the prefabricated foundation blocks 1, wherein the load can be applied by utilizing a hydraulic jack or a road roller until the upper surfaces of the prefabricated foundation blocks 1 are flush, at the moment, the slots 21 of the adjacent prefabricated foundation blocks 1 are aligned, then inserting first steel 31 into the slots 21, and the left and right parts of the first steel 31 are respectively positioned in the two slots 21, and meanwhile, the steel bars 32 are inserted into the V-shaped slots, and the downward load is relieved.
S3, inserting the inserting rod 301 into the inserting hole on the upper surface of the prefabricated foundation block 1, placing the back plate 302 at a position close to the section of the existing road 100, abutting the lower surface of the back plate 302 on the upper surface of the prefabricated foundation block 1, and abutting one side surface of the back plate 302 on the inserting rod 301.
And S4, grouting a gap between the back plate 302 and the section of the existing road 100 to form a filling slurry layer.
S5, paving the shock pad 13 on the prefabricated foundation block 1, and then hoisting the bridge body assembly 20 to the prefabricated foundation block 1.
The implementation principle of the embodiment 1 is as follows: firstly, the prefabricated foundation blocks 1 and the first crushed stone stabilized base 11 are used as supporting foundations of the steel temporary bridge, and the connecting steel structures 3 are used for detachable connection, so that the construction method has the characteristic of quick construction, and the construction period of the steel temporary bridge can be greatly shortened; and the later disassembly is quick, and the thinned filling slurry layer is easy to be shoveled.
Secondly, by applying a downward static pressure load, it is possible to ensure that the first crushed stone stabilizer base layer 11 is kept in a compact state, and to improve the supporting compactness of the prefabricated foundation block 1 and the first crushed stone stabilizer base layer 11, and to perform height adjustment on the prefabricated foundation block 1 by using a downward pressure force, so that the prefabricated foundation block 1 is flush with the socket 21, thereby facilitating accurate insertion of the first square steel 31, and thus improving the connection effect between the adjacent prefabricated foundation blocks 1.
And thirdly, by arranging the back plate 302 and the filling slurry layer, the connection and protection between the steel temporary bridge and the section of the existing road 100 can be carried out, so that the occurrence of the condition that the section of the existing road 100 is collided and worn due to the vibration displacement of the steel temporary bridge is reduced.
In order to greatly shorten the construction period, the excavation area of the existing road 100 is widened gradually, that is, a part is firstly constructed and then widened continuously, so that the steel bridge of the present application can be assembled gradually according to the widening of the excavation area, for example, the prefabricated foundation block 1 is newly lifted to a new widening position, and then pre-pressed and inserted with a new first-party steel 31.
Meanwhile, the construction of the steel temporary bridge can be segmented and single-segment construction can be completed in the evening to cope with traffic on the next day, for example, two prefabricated foundation blocks 1 and two bridge body assemblies 20 are firstly constructed in the evening to quickly assemble a temporary steel temporary bridge with smaller width and capable of being normally driven by a vehicle, and new one or more prefabricated foundation blocks 1 and bridge body assemblies 20 are constructed in the evening on the next day to quickly widen the usable range of the steel temporary bridge, so that normal construction of the existing road 100 is not affected, and construction of the steel temporary bridge can be quickly and gradually completed, so that the construction period is greatly shortened and normal traffic is ensured.
Example 2
Embodiment 2 is different from embodiment 1 in that, as shown in fig. 4 and 5, the covering steel sleeve 2 covers four peripheral surfaces of the prefabricated foundation block 1, the surfaces of the covering steel sleeve 2 located at two sides of the prefabricated foundation block 1 in the length direction are set to be second inclined surfaces 23, and the middle parts of the surfaces of the covering steel sleeve 2 located at two sides of the prefabricated foundation block 1 in the width direction are concavely formed with clamping grooves 22, in this embodiment, the clamping grooves 22 are penetratingly arranged along the length direction of the prefabricated foundation block 1.
The support assembly 10 further comprises a plurality of steel rails 16 and a plurality of steel beams, wherein the steel rails 16 are positioned in the first crushed stone stabilizer base layer 11, the steel rails 16 extend along the length direction of the prefabricated foundation block 1, and the plurality of steel rails 16 are arranged at intervals along the width direction of the prefabricated foundation block 1.
The girder steel extends along bridge body subassembly 20 length direction, the transversal right triangle that personally submits of girder steel, two girder steel are located the both sides of the length direction of prefabricated basic block 1 respectively, the lower half position embedding of girder steel is first in the rubble stable collection layer, the horizontal side butt of girder steel is in rail 16 upper surface, the second inclined plane 23 of cladding steel bushing 2 is laminated mutually with the inclined plane of girder steel, two similar girder steel of two prefabricated basic blocks 1 are named first girder steel 14, two other girder steel are named second girder steel 15, the vertical side of two first girder steel 14 is laminated mutually, and the outside of second girder steel 15 is filled with second rubble stable basic unit 17.
The connecting steel structure 3 comprises two transverse square steels 34 and two longitudinal square steels 35, wherein the transverse square steels 34 extend along the length direction of the prefabricated foundation block 1, and the transverse square steels 34 are inserted into the clamping grooves 22.
The longitudinal square steel 35 extends along the width direction of the prefabricated foundation block 1, the longitudinal square steel 35 is abutted against the vertical side surface of the second steel beam 15, the end parts of the longitudinal square steel 35 and the transverse square steel 34 are fixedly connected, specifically, as shown in fig. 6, the end parts of the longitudinal square steel 35 are fixedly provided with sliding blocks 351, the end parts of the transverse square steel 34 are provided with sliding grooves 341 extending along the length direction of the transverse square steel 34, the longitudinal square steel 35 is enabled to move to a state of abutting against the vertical side surface of the second steel beam 15 through the matching of the sliding blocks 351 and the sliding grooves 341, in addition, the end parts of the transverse square steel 34 are fixedly provided with bolt bases 342, the bolt bases 342 are in threaded connection with fastening bolts 343 which are obliquely arranged, and the end parts of the fastening bolts 343 are abutted against the surface of the longitudinal square steel 35, which is far away from the second steel beam 15, so that the longitudinal square steel 35 is prevented from being separated from the transverse square steel 34.
When the vehicle runs through the steel bridge, the prefabricated foundation block 1 receives downward pressure, the downward pressure is converted into horizontal component force through the bonding of the second inclined surface 23 and the steel beam inclined surface, and the directions of the horizontal component forces received by the two first steel beams 14 are opposite, so that the horizontal component forces received by the two first steel beams 14 are mutually offset; the horizontal component force born by the second steel beam 15 is sequentially applied to the longitudinal square steel 35 and the transverse square steel 34, and the longitudinal square steel 35 and the transverse square steel 34 have good tensile capacity, so that the horizontal component force is effectively resisted, and the compressive capacity of the prefabricated foundation block 1 is greatly improved.
Example 3
Embodiment 3 is different from embodiment 2 in that, as shown in fig. 7 and 8, the upper groove wall of the clamping groove 22 is a wavy groove wall 221, and the lower groove wall of the clamping groove 22 is a straight groove wall 222.
The transverse square steel 34 is provided in a wavy shape, wherein the upper surface of the trough of the transverse square steel 34 is abutted against the trough of the wavy trough wall 221, and the lower surface of the trough of the transverse square steel 34 is abutted against the straight trough wall 222.
When the prefabricated foundation block 1 receives downward pressure and converts the downward pressure into horizontal component force, the downward pressure is converted into the horizontal component force through the fit of the second inclined surface 23 and the inclined surface of the steel beam, the horizontal component force received by the second steel beam 15 stretches the transverse square steel 34, namely the transverse square steel 34 has a stretching deformation trend, and when the transverse square steel 34 stretches, the trough of the transverse square steel 34 has an upward movement trend, namely the trough of the transverse square steel 34 applies upward acting force to the prefabricated foundation block 1, and the acting force counteracts the downward pressure of the prefabricated foundation block 1 to a certain extent, so that the compressive capacity of the prefabricated foundation block 1 is improved.
In order to improve the tensile strength of the transverse square steel 34 and improve the compressive strength of the prefabricated foundation block 1, a first steel strand 344 extending along the length direction of the transverse square steel 34 may be penetrated into the transverse square steel 34, and two ends of the first steel strand 344 are fixedly connected with two ends of the transverse square steel 34, specifically, the fixing manner may be that a rod structure is welded at the end of the transverse square steel 34, the first steel strand 344 and the binding of the rod structure are used for fixing, or an anchor is used for stretching and fixing the first steel strand 344, so that the first steel strand 344 is in a tightening state, at this time, the first steel strand 344 is abutted against the crest and the trough of the inner wall of the transverse square steel 34, that is, the tightening force of the first steel strand 344 is used, so that the transverse square steel 34 has prestress, and the tensile strength of the transverse square steel 34 is improved.
Example 4
Embodiment 4 is different from embodiment 2 in that, as shown in fig. 9, there is a gap between two first steel beams 14, and a distance adjusting structure 5 is provided in the gap, and the distance adjusting structure 5 is used for adjusting the gap distance between the two first steel beams 14.
As shown in fig. 10 and 11, the specific adjusting structure includes two rotating shafts 51, where the two rotating shafts 51 are disposed in a one-to-one correspondence with the two first steel beams 14, specifically, the rotating shafts 51 extend along the length direction of the first steel beams 14, a rotating seat 53 is fixed on a vertical side surface of the first steel beams 14, the rotating shafts 51 penetrate through the rotating seat 53, so that the rotating shafts 51 are rotationally connected with the first steel beams 14, and the rotating shafts 51 can axially slide relative to the rotating seat 53.
The rotating shaft 51 is fixedly connected with a cam 52, the outer peripheral surface of the cam 52 comprises an arc section 522 and a convex arc section 521, the surface of the arc section 522 is provided with a convex tooth 523, the vertical side surface of the first steel beam 14 is concavely provided with an arc groove 54 extending along the length direction of the first steel beam 14, the shape of the arc groove 54 is matched with that of the arc section 522, the arc groove 54 comprises a tooth groove section 541 and a toothless section 542, a tooth groove of the tooth groove section 541 is matched with the convex tooth 523, and the convex arc section 521 of the cam 52 is abutted to the vertical side surface of the adjacent first steel beam 14.
When the steel temporary bridge receives the downward pressure of the vehicle for a long time, the steel temporary bridge can be lifted, specifically, firstly, the prefabricated foundation block 1 is lifted by using lifting equipment, the gravity of the prefabricated foundation block 1 to steel beams is reduced, then, by moving the rotating shaft 51 along the axial direction, the convex teeth 523 are separated from the tooth grooves of the tooth groove sections 541, at the moment, the convex teeth 523 are moved to the toothless sections 542, then, the rotating shaft 51 is rotated, the convex arc sections 521 of the cam 52 are deflected downwards, the abutting points of the convex arc sections 521 and the vertical side surfaces of the first steel beams 14 are changed, so that the two first steel beams 14 are forced to be away from each other, the distance between the first steel beams 14 and the second steel beams 15 is shortened, and then, the rotating shaft 51 is moved, so that the convex teeth 523 of the cam 52 are meshed with the tooth grooves of the tooth groove sections 541 again, and the position of the cam 52 is fixed.
In this way, the cooperation of the inclined surface of the first steel beam 14 and the second inclined surface 23 of the prefabricated foundation block 1 is utilized to lift the prefabricated foundation block 1, so that the bridge body assembly 20 is flush with the surface of the existing road 100, and the vehicle can run normally.
Example 5
Embodiment 5 is different from embodiment 4 in that, as shown in fig. 12, a connecting ring 61 is provided at an inner acute angle of the second steel beam 15 located below, a guide rod 62 is provided at an inner acute angle of the first steel beam 14 located below, and inclined surfaces of the first steel beam 14 and the second steel beam 15 are provided with perforations 64.
The cam 52 is fixed with a tightening ring 65, and the tightening ring 65 is disposed coaxially with the rotation shaft 51.
A second steel strand 63 is arranged between the first steel beam 14 and the second steel beam 15, one end of the second steel strand 63 is fixedly connected with the connecting ring 61, and the other end of the second steel strand 63 sequentially passes through a perforation 64 of the second steel beam 15, the perforation 64 of the first steel beam 14, downwards bypasses the guide rod 62 and is fixedly wound with the tightening ring 65.
When the prefabricated foundation block 1 needs to be lifted, the cam 52 is made to rotate downwards, the convex arc section 521 of the cam 52 swings downwards, the first steel beam 14 moves towards the second steel beam 15, meanwhile, when the cam 52 rotates, the tightening ring 65 tightens the second steel stranded wire 63, the second steel stranded wire 63 pulls the second steel beam 15 to move towards the first steel beam 14, the first steel beam 14 and the second steel beam 15 are made to be close to each other, and finally the fastening bolt 343 is screwed, so that the longitudinal square steel 35 is abutted against the vertical side face of the second steel beam 15 again, and accordingly the lifting effect of the prefabricated foundation block 1 is improved.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. An assembled steel bridge, its characterized in that: the composite bridge comprises two support assemblies (10), joint filling assemblies (30) and bridge body assemblies (20), wherein each support assembly (10) comprises a first crushed stone stabilizing base layer (11) and prefabricated foundation blocks (1) from bottom to top in sequence, each prefabricated foundation block (1) is arranged into a plurality of blocks and laid on the first crushed stone stabilizing base layer (11), a cladding steel sleeve (2) is fixed on the outer surface of each prefabricated foundation block (1), and the cladding steel sleeves (2) of adjacent prefabricated foundation blocks (1) are detachably connected through connecting steel structures (3); the prefabricated foundation block (1) is detachably connected with a vertical inserting rod (301), the joint filling assembly (30) comprises a back plate (302) and a filling slurry layer, the inserting rod (301) horizontally limits the back plate (302), and the filling slurry layer is filled in a gap between the back plate (302) and the section of the existing road (100); both ends of the bridge body assembly (20) in the length direction are respectively abutted to the upper surfaces of the prefabricated foundation blocks (1) of the two support assemblies (10).
2. The fabricated steel bridge of claim 1, wherein: the coating steel sleeve (2) is arranged on the side edge of the prefabricated foundation block (1) along the width direction of the bridge body assembly (20), a slot (21) is formed in the vertical middle of the coating steel sleeve (2) in a recessed mode, the surface of the coating steel sleeve (2) is set to be a first inclined surface, and the first inclined surfaces of the coating steel sleeves (2) of two adjacent prefabricated foundation blocks (1) are combined to form a V-shaped groove; the connecting steel structure (3) comprises a first square steel (31) and two steel bars (32), wherein the steel bars (32) are arranged along the length direction of the first square steel (31), the two steel bars (32) are respectively fixed on the upper surface and the lower surface of the first square steel (31), the first square steel (31) is inserted into the slot (21) along the width direction of the prefabricated foundation block (1), and the steel bars (32) are inserted into the V-shaped slot.
3. The fabricated steel bridge of claim 1, wherein: the two prefabricated foundation blocks (1) are arranged at intervals along the width direction of the bridge body assembly (20), four peripheral surfaces of the prefabricated foundation blocks (1) are covered by the wrapping steel sleeves (2), the surfaces of the wrapping steel sleeves (2) positioned at two sides of the prefabricated foundation blocks (1) in the length direction are provided with second inclined surfaces (23), and clamping grooves (22) are formed in the middle of the surfaces of the wrapping steel sleeves (2) positioned at two sides of the prefabricated foundation blocks (1) in the width direction in a recessed mode; the supporting assembly (10) further comprises a plurality of steel rails (16) and a plurality of steel beams, the steel rails (16) extend along the width direction of the bridge body assembly (20), the steel rails (16) are positioned in the first broken stone stabilizing base layer (11), the steel beams extend along the length direction of the bridge body assembly (20), the cross sections of the steel beams are right-angled triangles, the two steel beams are respectively positioned at two sides of the length direction of the prefabricated foundation block (1), the lower half parts of the steel beams are embedded into the first broken stone stabilizing collection layer, the horizontal side surfaces of the steel beams are abutted to the upper surface of the steel rails (16), the second inclined surfaces (23) of the cladding steel sleeves (2) are attached to the inclined surfaces of the steel beams, two similar steel beams of the two prefabricated foundation blocks (1) are named as first steel beams (14), the other two steel beams are named as second steel beams (15), and the vertical side surfaces of the two first steel beams (14) are connected; the connecting steel structure (3) comprises two transverse square steels (34) and two longitudinal square steels (35), the transverse square steels (34) extend along the length direction of the prefabricated foundation block (1) and are matched with clamping grooves (22) on two same sides at the same time, the longitudinal square steels (35) extend along the width direction of the prefabricated foundation block (1), the longitudinal square steels (35) are abutted to the vertical side surfaces of the second steel beams (15), and the longitudinal square steels (35) are fixedly connected with the end parts of the transverse square steels (34).
4. A fabricated steel bridge according to claim 3, wherein: the upper groove wall of the clamping groove (22) is a wavy groove wall (221), the lower groove wall of the clamping groove (22) is a straight groove wall (222), the transverse square steel (34) is wavy, the upper surface of the trough of the transverse square steel (34) is abutted to the trough of the wavy groove wall (221), and the lower surface of the trough of the transverse square steel (34) is abutted to the straight groove wall (222).
5. The fabricated steel bridge according to claim 4, wherein: first steel strand wires (344) that extend along self length direction wear to be equipped with in horizontal square steel (34), first steel strand wires (344) and the crest department and the trough department butt of horizontal square steel (34) inner wall, the tip of first steel strand wires (344) with horizontal square steel (34) fixed connection, first steel strand wires (344) are the state of tightening.
6. The fabricated steel bridge according to any one of claims 3-5, wherein: the vertical side department of first girder steel (14) is equipped with pivot (51), and pivot (51) extend along first girder steel (14) length direction, and pivot (51) rotate with first girder steel (14) to be connected, and pivot (51) slide along self length direction with first girder steel (14) and are connected, fixedly connected with cam (52) on pivot (51), and arc section (522) and convex arc section (521) are established to the outer peripheral face of cam (52), the surface of arc section (522) is equipped with convex tooth (523), the vertical side of first girder steel (14) is sunken to be equipped with along arc recess (54) of first girder steel (14) length direction extension, and the shape and the circular arc section (522) looks adaptation of arc recess (54), arc recess (54) include tooth groove section (541) and toothless section (542), the tooth groove of tooth groove section (541) with convex tooth (523) cooperate, convex arc section (521) butt is on the vertical side of adjacent first girder steel (14).
7. The fabricated steel bridge of claim 6, wherein: be equipped with second steel strand wires (63) between first girder steel (14) and second girder steel (15), the interior acute angle department that is located the below of second girder steel (15) is equipped with go-between (61), the interior acute angle department that is located the below of first girder steel (14) is equipped with guide bar (62), the inclined plane of first girder steel (14) and second girder steel (15) all is equipped with perforation (64), cam (52) are fixed with and tighten ring (65), the one end and go-between (61) fixed connection of second steel strand wires (63), perforation (64) of second girder steel (15), perforation (64) of first girder steel (14), downward bypass guide bar (62) and with tighten ring (65) winding are fixed, protruding arc section (521) of cam (52) swing downwards, tighten ring (65) tighten up second steel strand wires (63).
8. A fabricated steel bridge according to claim 3, wherein: the end part of the transverse square steel (34) is fixedly provided with a bolt seat (342), the bolt seat (342) is in threaded connection with a fastening bolt (343) which is obliquely arranged, and the end part of the fastening bolt (343) is abutted against the surface of the longitudinal square steel (35) which is away from the second steel beam (15).
9. A fabricated steel bridge according to claim 3, wherein: and the outer side of the second steel beam (15) is filled with a second macadam stabilization base layer (17).
10. A method of constructing a fabricated steel bridge according to claim 2, wherein: the method comprises the following steps: s1, paving a first macadam stabilization base layer (11), wherein the first macadam stabilization base layer is paved in a divided mode, and a geogrid is paved on cement macadam stabilization materials paved for the first time; s2, hoisting the prefabricated foundation blocks (1) to the upper surface of the first crushed stone stable base layer (11), then applying downward load to the prefabricated foundation blocks (1) until the upper surfaces of the prefabricated foundation blocks (1) are flush, aligning the slots (21) of the adjacent prefabricated foundation blocks (1), then inserting first square steel (31) into the slots (21), and simultaneously inserting the steel bars (32) into the V-shaped slots to relieve the downward load; s3, inserting the inserting rod (301) into an inserting hole on the upper surface of the prefabricated foundation block (1), placing the back plate (302) at a position close to the section of the existing road (100), wherein the lower surface of the back plate (302) is abutted to the upper surface of the prefabricated foundation block (1), and one side surface of the back plate (302) is abutted to the inserting rod (301); s4, grouting a gap between the backboard (302) and the section of the existing road (100) to form a filling slurry layer; s5, hoisting the bridge body assembly (20) to the prefabricated foundation block (1).
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090069477A (en) * | 2007-12-26 | 2009-07-01 | 주식회사 도화종합기술공사 | Precast block temporary road construction method using uniformly distributed load |
| CN203716022U (en) * | 2013-12-24 | 2014-07-16 | 王营杰 | Movable road construction temporary access road bridge |
| CN104278604A (en) * | 2014-10-29 | 2015-01-14 | 河南省公路工程局集团有限公司 | Saddle-shaped construction road building method for expressway |
| CN105297577A (en) * | 2015-10-16 | 2016-02-03 | 中交第二航务工程局有限公司 | Assembly-type branch access road structure in mountainous and heavy hilly areas and construction method for same |
| JP2016098490A (en) * | 2014-11-18 | 2016-05-30 | 株式会社ピーエス三菱 | Construction method for concrete floor slab of overpass |
| CN110107303A (en) * | 2019-04-19 | 2019-08-09 | 同济大学 | The deformation control method of shallow earthing shield boring across underneath high-speed railway |
| CN211647442U (en) * | 2019-12-18 | 2020-10-09 | 中建铁路投资建设集团有限公司 | Steel construction composite floor interim shaped steel strutting arrangement with adjustable |
| CN112459120A (en) * | 2020-11-16 | 2021-03-09 | 北京正坤市政工程有限责任公司 | Road pipeline shaft construction equipment |
| CN215165641U (en) * | 2021-01-11 | 2021-12-14 | 南京林业大学 | Supporting structure adopting combination of triangular supports and Larsen steel sheet piles |
| CN115478480A (en) * | 2022-09-13 | 2022-12-16 | 西北水利水电工程有限责任公司 | Installation and construction method for preventing beam falling of prestressed stay cable of high-pier simply-supported beam bridge |
-
2023
- 2023-08-08 CN CN202310993892.9A patent/CN117005290B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090069477A (en) * | 2007-12-26 | 2009-07-01 | 주식회사 도화종합기술공사 | Precast block temporary road construction method using uniformly distributed load |
| CN203716022U (en) * | 2013-12-24 | 2014-07-16 | 王营杰 | Movable road construction temporary access road bridge |
| CN104278604A (en) * | 2014-10-29 | 2015-01-14 | 河南省公路工程局集团有限公司 | Saddle-shaped construction road building method for expressway |
| JP2016098490A (en) * | 2014-11-18 | 2016-05-30 | 株式会社ピーエス三菱 | Construction method for concrete floor slab of overpass |
| CN105297577A (en) * | 2015-10-16 | 2016-02-03 | 中交第二航务工程局有限公司 | Assembly-type branch access road structure in mountainous and heavy hilly areas and construction method for same |
| CN110107303A (en) * | 2019-04-19 | 2019-08-09 | 同济大学 | The deformation control method of shallow earthing shield boring across underneath high-speed railway |
| CN211647442U (en) * | 2019-12-18 | 2020-10-09 | 中建铁路投资建设集团有限公司 | Steel construction composite floor interim shaped steel strutting arrangement with adjustable |
| CN112459120A (en) * | 2020-11-16 | 2021-03-09 | 北京正坤市政工程有限责任公司 | Road pipeline shaft construction equipment |
| CN215165641U (en) * | 2021-01-11 | 2021-12-14 | 南京林业大学 | Supporting structure adopting combination of triangular supports and Larsen steel sheet piles |
| CN115478480A (en) * | 2022-09-13 | 2022-12-16 | 西北水利水电工程有限责任公司 | Installation and construction method for preventing beam falling of prestressed stay cable of high-pier simply-supported beam bridge |
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