CN103850162A - Bridge type combined-structure road surface system and construction method thereof - Google Patents
Bridge type combined-structure road surface system and construction method thereof Download PDFInfo
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- CN103850162A CN103850162A CN201410049443.XA CN201410049443A CN103850162A CN 103850162 A CN103850162 A CN 103850162A CN 201410049443 A CN201410049443 A CN 201410049443A CN 103850162 A CN103850162 A CN 103850162A
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Abstract
The invention relates to a bridge type combined-structure road surface system and a construction method thereof. The system consists of a precast reinforced concrete strip-shaped foundation and a combined-structure road surface laid on the precast reinforced concrete strip-shaped foundation, wherein the cross section of the precast reinforced concrete strip-shaped foundation is inverted-T-shaped, reinforcing steel bars are arranged in the precast reinforced concrete strip-shaped foundation, at least two pre-buried screw tubes I for lifting are arranged at each of the left and right wings of the precast reinforced concrete strip-shaped foundation, and at least four pre-buried screw tubes II which are used for being connected with a lateral limiting plate and restricting the combined-structure road surface from laterally displacing are arranged at each of the two ends of the precast reinforced concrete strip-shaped foundation; the combined-structure road surface is formed through splicing combined-structure road surface units, and each combined-structure road surface unit consists of a road surface primary beam, a steel plate and a reinforced concrete slab. According to the bridge type combined-structure road surface system and the construction method thereof, the structural design is reasonable, construction is carried out by adopting precast structures, the quality is easy to guarantee, the structural strength is high, the transportation is facilitated, the construction is convenient and efficient, the permission of traffic is early, and the system can be reused, so that the bridge type combined-structure road surface system and the construction method thereof are particularly applicable to the paving of temporary roads of construction sites and the rush repair of damaged roads during earthquake emergency rescue.
Description
Technical field
The present invention relates to a kind of assembling combining structure road surface and construction method thereof.
Background technology
Cast-in-site cement concrete pavement lay and reinstatement works in, due to ordinary Portland cement setting and harden slowly, the strength developing time is long, generally needs fencing lawn 14 days to concrete strength to reach the more than 80% of design strength, can open to traffic.If on the on-the-spot cast-in-situ concrete road surface that adopts of site construction, can delay the duration, particularly when repair after cast-in-situ concrete pavement damage more can be incured loss through delay the duration.As adopt splicing road surface just can greatly shorten the pavement construction time, and for the road surface of damaging in using, its broken parts is changed, and can carried on construction work at night, do not affect construction speed.Lay general reinforced concrete pavement is all disposable, need to after use, be removed, thereby waste a large amount of manpower and materials, and produce a large amount of building wastes for temporary road, and environment is worked the mischief.If adopt lifting, the reusable bridge-type combining structure of convenient transportation pavement system, can further improve efficiency of construction, reduce costs protection of the environment.
Summary of the invention
The invention provides a kind of bridge-type combining structure pavement system and construction method thereof, solve existing road surfacing efficiency of construction low, be inconvenient to keep in repair, the technical problem of the not reproducible utilization of material after removing.
The technical solution adopted for the present invention to solve the technical problems is:
This bridge-type combining structure pavement system, is made up of prefabricated reinforced concrete strip foundation and the combining structure road surface being laid in prefabricated reinforced concrete strip foundation;
The cross section of described prefabricated reinforced concrete strip foundation is inverted T-shaped, inside is provided with reinforcing bar, on the left and right both wings of prefabricated reinforced concrete strip foundation, respectively have at least two pre-buried fiber tubes one for lifting, two ends respectively have at least four for connecting the pre-buried fiber tube two of lateral Displacement plate restriction combining structure road surface lateral displacement;
Described combining structure road surface is spliced mutually by unit, combining structure road surface, and unit, combining structure road surface is made up of road surface girder, steel plate and armored concrete slab; Described road surface girder is formed by connecting by two longitudinal edge girders, a longitudinally middle girder and four widthwise edge girders; Described Plate Welding is on the girder of road surface, and armored concrete slab is built on steel plate; The top flange of road surface girder is vertically welded with the shearing resistance peg for anchor plate and armored concrete slab, and pre-buried fiber tube three for lifting, and steel plate is in shearing resistance peg and the three extended position perforates of pre-buried fiber tube; Perforate be welded with the steel bushing for be connected use with unit, adjacent combining structure road surface on the web of longitudinal edge girder, adjacent combining structure road surface unit transverse is by interconnecting drawing crab-bolt to pass steel bushing.
Between described prefabricated reinforced concrete strip foundation end face and combining structure road surface, be separated by by rubber pad; Between unit, combining structure road surface and unit, adjacent combining structure road surface, be separated by by rubber pad.
Described pre-buried fiber tube one and pre-buried fiber tube two form by internal thread sleeve pipe, rod iron and base plate, and internal thread sleeve pipe bottom is connected with rod iron, and rod iron bottom is welded and fixed with base plate;
Described pre-buried fiber tube three is made up of internal thread sleeve pipe and rod iron, and internal thread sleeve pipe bottom is connected with rod iron, and rod iron bottom is welded and fixed with the top flange of road surface girder.
The base plate of another pre-buried fiber tube two that described pre-buried fiber tube two is arranged side by side with it is structure as a whole.
Described pre-buried fiber tube three respectively has at least two on two longitudinal edge girders.
The pre-buried fiber tube two at described prefabricated reinforced concrete strip foundation two ends is bolted and is connected with lateral Displacement plate, and lateral Displacement plate vertically arranges, and combining structure road surface unit inside is inserted in its upper end.
Described lateral Displacement plate is formed by connecting by base plate, riser and stiffener, and riser is vertically connected in the middle of base plate, and stiffener is connected between the riser left and right sides and base plate, is distributed with at least four screws corresponding with pre-buried fiber tube two positions on described base plate.
Described road surface girder adopts H shaped steel.
Described longitudinal middle end of main beam and widthwise edge girder connected node place, the web both sides of longitudinally middle end of main beam are vertically connected with gusset plate, and gusset plate is fixedly connected with bolt by junction steel plate with the web of widthwise edge girder again;
Described longitudinal edge end of main beam and widthwise edge girder connected node place, be vertically connected with gusset plate on the web of longitudinal edge end of main beam, gusset plate is fixedly connected with bolt by junction steel plate with the web of widthwise edge girder again.
The construction method of this bridge-type combining structure pavement system, construction sequence is as follows:
Beneficial effect of the present invention is as follows:
System main body of the present invention is prefabricated reinforced concrete strip foundation and combining structure road surface.Prefabricated reinforced concrete strip foundation and combining structure road surface separate by rubber pad.Prefabricated reinforced concrete strip foundation inside arranges reinforcing bar.Prefabricated reinforced concrete strip foundation upper surface is equipped with pre-buried fiber tube one, so as with lifting.Prefabricated reinforced concrete strip foundation end is also provided with pre-buried fiber tube two, can connect lateral Displacement plate, to limit the lateral displacement on combining structure road surface.Pre-buried fiber tube top is a sleeve pipe with screw thread, and bottom is a rod iron, and Socket welding is connected on rod iron.In order to strengthen the anchoring strength of pre-buried fiber tube and structure, rod iron bottom is welded with steel plate.When lifting, screwed suspension ring are screwed into sleeve pipe, after having lifted again by suspension ring removal.
When unit, combining structure road surface processing and fabricating on girder web plate boring, welding node plate, utilize high-strength bolt that girder is connected.Road surface girder comprises longitudinal edge girder, longitudinally middle girder and widthwise edge girder.Between girder, adopt welding node plate, and the mode being connected with high-strength bolt with junction plate.Steel plate and girder utilization are uninterruptedly welded into entirety.Combining structure road surface is provided with shearing resistance peg, can make armored concrete slab and steel plate co-operation.Combining structure road surface is also provided with pre-buried fiber tube three, so that lifting.The stabilized structure of unit, combining structure road surface, connects reliably, is convenient to installation and removal.
For bridge-type combining structure road slab interblock is laterally connected reliably, perforate on longitudinal end of main beam web, weldable steel sleeve, penetrates drawing crab-bolt to connect.
Bridge-type combining structure pavement system of the present invention, compared with traditional road pavement and method for maintaining, has structural strength high, is convenient to transport, reusable, and the advantage such as construct efficient, is in particular in the following aspects:
1, convenient transportation.The volume on each piece combining structure road surface is little, and is standardized structural element.
2, Fast Installation, easy construction.On prefabricated strip foundation and combining structure road surface, be equipped with lifting hole(eyelet), convenient lifting.After hoisted in position, penetrate drawing crab-bolt and fixed connecting plate, can use.
3, the required plant equipment of constructing is few, and material usage is economized, and can reuse, and greatly reduces construction costs and other expenditure.Because prefabricated reinforced concrete strip foundation and combining structure road surface are prefabricated in the factory and process, at the construction field (site) only need be by grading, combining structure pavement system is laid in lifting.For temporary road, be finished rear recyclable, in order to next time use, further save material usage.
4, pavement construction is few to ambient influnence.Traditional pavement construction needs more construction machinery, produces larger noise when construction machinery operation.Meanwhile, in traditional pavement engineering construction, waste material of buildings is more, comprises water conservancy, timber, packaging material, discarded mould etc.These refuses are buried under the ground, and can cause the pollution to underground water.The present invention is prefabricated at workshop, and refuse is less and can focus on, and job site environment is not almost affected.
5, spread i.e. use, open to traffic early.Once laying construction is complete, just open to traffic immediately after removal suspension ring.Even can be open to traffic on construction limit, limit, be conducive to conveniently marching into the arena of construction machinery and Construction traffic, accelerating construction progress.The time that is open to traffic after construction of cement concrete road surface is greater than 16 days, and the time that is open to traffic after asphalt concrete pavement construction is greater than 3 days, and bridge-type combining structure pavement system of the present invention can spread i.e. use, and even Bian Pu limit is used.
6, dismounting freely.Bridge-type combining structure pavement system is reusable, can lay in advance, is transported to when needed on-the-spot laying.Built-in fitting is housed in structure, installs, removal suspension ring are very convenient, structure hoisting fashionable dress upper lift ring is Liftable.
7, applied widely.Bridge-type combining structure pavement system is applicable to have the various roadbeds of certain bearing capacity, is mainly used in quick laying construction transport channel, ensures the current smoothly of construction vehicle.The present invention can not only be used in the laying of construction with interim matter transportation road, can also be used for rushing to repair the road being damaged in earthquake.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the plan view of prefabricated reinforced concrete strip foundation.
Fig. 3 is the structural representation of 1-1 section in Fig. 2.
Fig. 4 is the structural representation of 2-2 section in Fig. 2.
Fig. 5 is the structural representation of pre-buried fiber tube one.
Fig. 6 is the structural representation of pre-buried fiber tube two.
Fig. 7 is the structural representation of lateral Displacement plate.
Fig. 8 is the structural representation of 5-5 section in Fig. 7.
Fig. 9 is the structural representation of unit, combining structure road surface.
Figure 10 is the structural representation of 6-6 section in Fig. 9.
Figure 11 is the structural representation of longitudinally middle end of main beam and widthwise edge girder connected node.
Figure 12 is the structural representation of 7-7 section in Figure 11.
Figure 13 is the structural representation of longitudinal edge end of main beam and widthwise edge girder connected node.
Figure 14 is the structural representation of 8-8 section in Figure 13.
Figure 15 is pre-buried fiber tube three distribution maps on unit, combining structure road surface.
Figure 16 is the lateral view of unit, combining structure road surface.
Figure 17 is the schematic diagram of pre-buried fiber tube three and longitudinal edge Main Girder Welding.
Figure 18 is the structural representation of steel bushing.
Figure 19 is the structural representation to drawing crab-bolt.
Reference numeral: unit, 1-combining structure road surface; 2-prefabricated reinforced concrete strip foundation; 3-longitudinal edge girder; The longitudinally middle girder of 4-; 5-widthwise edge girder; 6-armored concrete slab; The pre-buried fiber tube one of 7-, 7.1-internal thread sleeve pipe, 7.2-rod iron, 7.3-base plate; The pre-buried fiber tube two of 8-, 8.1-internal thread sleeve pipe, 8.2-rod iron, 8.3-base plate; 9-reinforcing bar; 10-lateral Displacement plate, 10.1-base plate, 10.2-riser, 10.3-stiffener, 10.4-screw; 11-rubber pad; 12-steel plate; 13-shearing resistance peg; The pre-buried fiber tube three of 14-, 14.1-internal thread sleeve pipe, 14.2-rod iron; The longitudinally middle end of main beam of 15-and widthwise edge girder connected node; 16-longitudinal edge end of main beam and widthwise edge girder connected node; 17-junction steel plate; 18-is to drawing crab-bolt; 19-steel bushing; 20-gusset plate.
Detailed description of the invention
Embodiment is shown in Figure 1, and this bridge-type combining structure pavement system is made up of prefabricated reinforced concrete strip foundation 2 and the combining structure road surface being laid in prefabricated reinforced concrete strip foundation.Between described prefabricated reinforced concrete strip foundation 2 end faces and combining structure road surface, be separated by by rubber pad 11; Between unit, combining structure road surface 1 and unit, adjacent combining structure road surface, be separated by by rubber pad 11.
Shown in Fig. 2～4, the cross section of described prefabricated reinforced concrete strip foundation 2 is inverted T-shaped, inside is provided with reinforcing bar 9, on the left and right both wings of prefabricated reinforced concrete strip foundation 2, respectively have two pre-buried fiber tubes 1 for lifting, respectively there are four pre-buried fiber tubes 28 that limit the lateral displacement of combining structure road surface for connecting lateral Displacement plate 10 at two ends.
Shown in Fig. 9～19, described combining structure road surface is spliced mutually by unit, combining structure road surface 1, and unit, combining structure road surface is made up of road surface girder, steel plate 12 and armored concrete slab 6; Described road surface girder can adopt H shaped steel; Described road surface girder by two longitudinal edge girders 3, one longitudinally in the middle of girder 4 and four widthwise edge girders 5 be formed by connecting; Described steel plate 12 is welded on the girder of road surface, and armored concrete slab 6 is built on steel plate 12; The top flange of road surface girder is vertically welded with the shearing resistance peg 13 for anchor plate 12 and armored concrete slab 6, and pre-buried fiber tube 3 14 for lifting, and steel plate 12 is in shearing resistance peg 13 and the 3 14 extended position perforates of pre-buried fiber tube; Perforate be welded with the steel bushing 19 for be connected use with unit, adjacent combining structure road surface 1 on the web of longitudinal edge girder 3, unit, adjacent combining structure road surface 1 is laterally by drawing crab-bolt 18 to interconnect through steel bushing 19.
Shown in Fig. 5, Fig. 6, described pre-buried fiber tube 1 and pre-buried fiber tube 28 form by internal thread sleeve pipe, rod iron and base plate, and internal thread sleeve pipe bottom is connected with rod iron, and rod iron bottom is welded and fixed with base plate; The base plate 8.3 of another pre-buried fiber tube 28 that described pre-buried fiber tube 28 is arranged side by side with it is structure as a whole.
Shown in Fig. 7, Fig. 8, the pre-buried fiber tube 28 at described prefabricated reinforced concrete strip foundation 2 two ends is bolted and is connected with lateral Displacement plate 10, and lateral Displacement plate vertically arranges, and 1 inner side, unit, combining structure road surface is inserted in its upper end.Described lateral Displacement plate 10 is formed by connecting by base plate 10.1, riser 10.2 and stiffener 10.3, riser 10.2 is vertically connected in the middle of base plate 10.1, stiffener 10.3 is connected between riser 10.2 left and right sides and base plate 10.1, is distributed with four screws 10.4 corresponding with pre-buried fiber tube 28 positions on described base plate 10.1.
Shown in Figure 11, Figure 12, described longitudinal middle end of main beam and widthwise edge girder connected node 15 places, longitudinally, the web both sides of girder 4 ends are vertically connected with gusset plate 20, and gusset plate 20 is fixedly connected with bolt by junction steel plate 17 with the web of widthwise edge girder 5 again;
Shown in Figure 13, Figure 14, described longitudinal edge end of main beam and widthwise edge girder connected node 16 places, on the web of longitudinal edge girder 3 ends, be vertically connected with gusset plate 20, gusset plate 20 is fixedly connected with bolt by junction steel plate 17 with the web of widthwise edge girder 5 again.
Shown in Figure 15～17, described pre-buried fiber tube 3 14 respectively has at least two on two longitudinal edge girders 3.Described pre-buried fiber tube 3 14 is made up of internal thread sleeve pipe 14.1 and rod iron 14.2, and internal thread sleeve pipe bottom is connected with rod iron, and rod iron bottom is welded and fixed with the top flange of longitudinal edge girder 3.
The construction method of this bridge-type combining structure pavement system, construction sequence is as follows:
Claims (10)
1. a bridge-type combining structure pavement system, is characterized in that: by prefabricated reinforced concrete strip foundation (2) be laid on combining structure road surface in prefabricated reinforced concrete strip foundation and form;
The cross section of described prefabricated reinforced concrete strip foundation (2) is inverted T-shaped, inside is provided with reinforcing bar (9), on the left and right both wings of prefabricated reinforced concrete strip foundation (2), respectively have at least two pre-buried fiber tubes one (7) for lifting, two ends respectively have at least four for connecting the pre-buried fiber tube two (8) of lateral Displacement plate (10) restriction combining structure road surface lateral displacement;
Described combining structure road surface is spliced mutually by unit, combining structure road surface (1), and unit, combining structure road surface is made up of road surface girder, steel plate (12) and armored concrete slab (6); Described road surface girder is formed by connecting by two longitudinal edge girders (3), a longitudinally middle girder (4) and four widthwise edge girders (5); Described steel plate (12) is welded on the girder of road surface, and armored concrete slab (6) is built on steel plate (12); The top flange of road surface girder is vertically welded with the shearing resistance peg (13) for anchor plate (12) and armored concrete slab (6), and pre-buried fiber tube three (14) for lifting, steel plate (12) is in shearing resistance peg (13) and three (14) the extended position perforates of pre-buried fiber tube; Perforate be welded with the steel bushing (19) for be connected use with unit, adjacent combining structure road surface (1) on the web of longitudinal edge girder (3), unit, adjacent combining structure road surface (1) is laterally by drawing crab-bolt (18) to interconnect through steel bushing (19).
2. bridge-type combining structure pavement system according to claim 1, is characterized in that: between described prefabricated reinforced concrete strip foundation (2) end face and combining structure road surface, be separated by by rubber pad (11); Between unit, combining structure road surface (1) and unit, adjacent combining structure road surface, be separated by by rubber pad (11).
3. bridge-type combining structure pavement system according to claim 1, it is characterized in that: described pre-buried fiber tube one (7) and pre-buried fiber tube two (8) form by internal thread sleeve pipe, rod iron and base plate, internal thread sleeve pipe bottom is connected with rod iron, and rod iron bottom is welded and fixed with base plate;
Described pre-buried fiber tube three (14) is made up of internal thread sleeve pipe (14.1) and rod iron (14.2), and internal thread sleeve pipe bottom is connected with rod iron, and rod iron bottom is welded and fixed with the top flange of road surface girder.
4. bridge-type combining structure pavement system according to claim 3, is characterized in that: the base plate (8.3) of another pre-buried fiber tube two (8) that described pre-buried fiber tube two (8) is arranged side by side with it is structure as a whole.
5. bridge-type combining structure pavement system according to claim 1, is characterized in that: described pre-buried fiber tube three (14) respectively has at least two on two longitudinal edge girders (3).
6. bridge-type combining structure pavement system according to claim 1, it is characterized in that: the pre-buried fiber tube two (8) at described prefabricated reinforced concrete strip foundation (2) two ends is bolted and is connected with lateral Displacement plate (10), lateral Displacement plate vertically arranges, and inner side, unit, combining structure road surface (1) is inserted in its upper end.
7. bridge-type combining structure pavement system according to claim 6, it is characterized in that: described lateral Displacement plate (10) is formed by connecting by base plate (10.1), riser (10.2) and stiffener (10.3), riser (10.2) is vertically connected in the middle of base plate (10.1), stiffener (10.3) is connected between riser (10.2) left and right sides and base plate (10.1), is distributed with at least four screws (10.4) corresponding with pre-buried fiber tube two (8) positions on described base plate (10.1).
8. bridge-type combining structure pavement system according to claim 1, is characterized in that: described road surface girder adopts H shaped steel.
9. bridge-type combining structure pavement system according to claim 8, it is characterized in that: described longitudinal middle end of main beam and widthwise edge girder connected node (15) are located, longitudinally, the web both sides of girder (4) end are vertically connected with gusset plate (20), and gusset plate (20) is fixedly connected with bolt by junction steel plate (17) with the web of widthwise edge girder (5) again;
Described longitudinal edge end of main beam and widthwise edge girder connected node (16) are located, on the web of longitudinal edge girder (3) end, be vertically connected with gusset plate (20), gusset plate (20) is fixedly connected with bolt by junction steel plate (17) with the web of widthwise edge girder (5) again.
10. a construction method for bridge-type combining structure pavement system as described in claim 1～9 any one, is characterized in that construction sequence is as follows:
Step 1, make prefabricated reinforced concrete strip foundation (2), assembling reinforcement (9), fixing pre-buried fiber tube one (7) and pre-buried fiber tube two (8), after concreting moulding, screwed suspension ring are screwed into pre-buried fiber tube one (7), sling, obtain prefabricated reinforced concrete strip foundation after the demoulding;
Step 2, make unit, combining structure road surface (1), connect each road surface girder, establish steel plate (12) on girder upper berth, road surface, and steel plate (12) and road surface girder are connected into entirety, steel plate (12) is in shearing resistance peg (13) and three (14) the extended position perforates of pre-buried fiber tube simultaneously, shearing resistance peg (13) and pre-buried fiber tube three (14) are vertically welded on the top flange of road surface girder, perforate weldable steel sleeve (19) on the web of longitudinal edge girder (3) again, finally in steel plate (12) top assembling reinforcement, concreting, form armored concrete slab (6),
Step 3, removes road surface, and road surface is carried out to compacting;
Step 4, the prefabricated reinforced concrete strip foundation (2) processing and unit, combining structure road surface (1) are transported to job site, on the pre-buried fiber tube one (7) of prefabricated reinforced concrete strip foundation (2), be screwed into suspension ring, by extremely processed good road surface of prefabricated reinforced concrete strip foundation (2) lifting, removal suspension ring, then unit, combining structure road surface (1) is lifted into prefabricated reinforced concrete strip foundation (2) upper, unit, adjacent combining structure road surface (1) is laterally by interconnecting drawing crab-bolt (18) to pass steel bushing (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410049443.XA CN103850162B (en) | 2014-02-13 | 2014-02-13 | Bridge-type combining structure pavement system and construction method thereof |
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| CN201410049443.XA CN103850162B (en) | 2014-02-13 | 2014-02-13 | Bridge-type combining structure pavement system and construction method thereof |
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| CN103850162A true CN103850162A (en) | 2014-06-11 |
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| CN105648866A (en) * | 2016-02-29 | 2016-06-08 | 成都绿迪科技有限公司 | Large caterpillar crane floor board roadbed box |
| CN108571093A (en) * | 2018-06-15 | 2018-09-25 | 浙江绿筑集成科技有限公司 | The connecting structure of PEC combined shear wall limbs |
| CN114856580A (en) * | 2022-04-26 | 2022-08-05 | 中建八局第三建设有限公司 | Safe construction method for ultra-shallow buried excavation large-section tunnel of city core business district |
| CN115029980A (en) * | 2022-06-20 | 2022-09-09 | 交通运输部公路科学研究所 | Road panel splicing assembly and temporary road system |
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| CN103334356A (en) * | 2013-06-26 | 2013-10-02 | 中国建筑股份有限公司 | Bridge type precast reinforced concrete hidden beam slab pavement system and construction method thereof |
| CN103343503A (en) * | 2013-06-26 | 2013-10-09 | 中国建筑股份有限公司 | Bridge type wear-resistant pavement structure system with prefabricated reinforced concrete trough plate and construction method |
| CN203768752U (en) * | 2014-02-13 | 2014-08-13 | 中国建筑股份有限公司 | Bridge type pavement system in composite structure |
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| US20030231929A1 (en) * | 2002-06-12 | 2003-12-18 | Lee Hee Jang | Prefabricated cement concrete slab for road pavement |
| KR20060082832A (en) * | 2006-06-15 | 2006-07-19 | 한국유지관리 주식회사 | Precast concrete panel using height-controller and its road repairing method |
| CN103334356A (en) * | 2013-06-26 | 2013-10-02 | 中国建筑股份有限公司 | Bridge type precast reinforced concrete hidden beam slab pavement system and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105648866A (en) * | 2016-02-29 | 2016-06-08 | 成都绿迪科技有限公司 | Large caterpillar crane floor board roadbed box |
| CN108571093A (en) * | 2018-06-15 | 2018-09-25 | 浙江绿筑集成科技有限公司 | The connecting structure of PEC combined shear wall limbs |
| CN108571093B (en) * | 2018-06-15 | 2023-11-28 | 浙江绿筑集成科技有限公司 | Connection structure of PEC combined shear wall limb |
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| CN115029980A (en) * | 2022-06-20 | 2022-09-09 | 交通运输部公路科学研究所 | Road panel splicing assembly and temporary road system |
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| Publication number | Publication date |
|---|---|
| CN103850162B (en) | 2015-10-28 |
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