A kind of composite material that adopts is the sandwich that core, steel plate are covering
Technical field
The utility model relates to the technical fields such as boats and ships, bridge, building, refers in particular to a kind of sandwich sheet material of alternative orthotropic plate, is that a kind of composite material that adopts is the structural panel sandwich that core, steel plate are covering specifically.
Background technology
In bridge main beam, boats and ships, at present conventional sheet material is steel plate or traditional sandwich clad steel, this steel plate or traditional sandwich clad steel have the shortcomings such as a large amount of weld seams, inner easy-to-rust, difficulty are safeguarded, rigidity is inadequate, are difficult to adapt to the use under rugged environment and under complicated stressing conditions of bridge, boats and ships.
Utility model content
The purpose of this utility model is the problem existing for prior art, and it is the sandwich that core, steel plate are covering that the employing composite material that a kind of rigidity is large, weld seam is few, intensity is high, be easy to safeguard is provided.
The technical solution adopted in the utility model is: a kind of composite material that adopts is the sandwich that core, steel plate are covering, comprise upper and lower two-layered steel plates covering and middle one deck composite material core, between steel plate covering and composite material core, bond and be bolted by structure glue;
Between multiple described sandwich, be connected by concavo-convex joint, or for increasing bonding strength, connect by two recessed heads, in the middle of two recessed heads, set up a rectangular steel tube, be convenient to welding;
Described composite material core adopts drawing and extruding section bar or sandwich structure, and drawing and extruding section bar is separate type or several monolithic being connected to form.
As preferably, described drawing and extruding section bar comprises I shape, grooved and hollow section.
As preferably, the filler of described sandwich structure comprises wooden or foam.
As preferably, for strengthening its globality, in described sandwich structure, can set up rib.
As preferably, described composite material core is by fiber and resin solidification moulding, fiber comprises carbon fiber, glass fiber, basalt fibre, aramid fiber or hybridization fiber, and resin adopts unsaturated polyester (UP), vinylite, epoxy resin, phenolic resins and all kinds of structure glue.
Beneficial effect: the sandwich that the utility model is combined into by upper and lower two-layered steel plates and middle one deck composite material core, can avoid a large amount of welding job of conventional interlayer steel plate, reduce weld seam; Composite material, as internal material, is protected by steel plate, does not have ultraviolet ageing and fire prevention and poison gas problem, and surface steel sheet is also easy to safeguard; When composite material core adopts hollow section, can also reduce the preserved pipeline of various pipelines.This sandwich can be applied to ship domain, and rigidity is large, intensity is high, abrasion resistance is good, and composite material is as sandwich material, stressed less; Also can be applied in steel case beam and substitute orthotropic plate, rigidity is large, and hogging moment area is few, stressed more reasonable.
Brief description of the drawings
Fig. 1 is the utility model embodiment 1 sandwich schematic perspective view;
Fig. 2 is the utility model embodiment 1 separate type hollow section sandwich cross-sectional view;
Fig. 3 is the utility model embodiment 2 Integral hollow pipe sandwich cross-sectional views;
Fig. 4 is the utility model embodiment 3 sandwich structure sandwich cross-sectional views;
Fig. 5 is the utility model embodiment 4 sandwich structure sandwich with ribbing cross-sectional view;
Fig. 6 is the concavo-convex connection diagram of the utility model embodiment 1 sandwich;
Fig. 7 is the concavo-concave connection diagram of the utility model embodiment 3 sandwich.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment 1
As shown in Fig. 1,2 and 6: it is the sandwich that core, steel plate are covering that the utility model adopts composite material, it comprises that upper and lower two layers of thickness is the steel plate covering 1 of 10mm, middle one deck composite material core 2 adopts the separate type hollow section 6 that 20cm is high, hollow section 6 is connected with bolt 4 by structure glue 3 with steel plate covering 1, between multiple sandwich, is connected by concavo-convex joint.
Taking embodiment 1 as example, employing composite material is that the preparation flow of core, the steel plate sandwich that is covering is as follows:
A, first make composite material core 2 (in embodiment 1 for separate type hollow section 6).In factory, first make hollow section 6 cross-section molds, then fiber (carbon fiber, glass fiber, basalt fibre, aramid fiber or hybridization fiber) and resin (comprising: unsaturated polyester (UP), vinylite, epoxy resin, phenolic resins) are formed into hollow section 6 by extruder and Mold Making.
B, assembling sandwich.The hollow section 6 of upper step being made to moulding is connected with bolt 4 by structure glue 3 with two block plate coverings 1.
C, the on-the-spot sandwich by upper step making moulding are connected to form entirety by concavo-convex joint.
In above-mentioned preparation technology: the kind of the kind of the size of steel plate covering 1, the form of composite material core 2 and size, fiber and quantity, resin etc. all can be adjusted as required flexibly.
Embodiment 2
As shown in Figure 3, the difference of the present embodiment and embodiment 1 is: described composite material core 2 adopts the separate type hollow section 6 that 20cm is high.
Embodiment 3
As shown in Fig. 4 and 7, it is the sandwich that core, steel plate are covering that the utility model adopts composite material, it comprises that upper and lower two layers of thickness is the steel plate covering 1 of 8mm, middle one deck composite material core 2 adopts the sandwich structure 7 that 22cm is high, filler 8 in sandwich structure 7 adopts foam, between multiple sandwich, connect by two recessed heads, a rectangular steel tube 5 is set up in centre.
Embodiment 4
As shown in Figure 6, the difference of the present embodiment and embodiment 3 is: for strengthening its globality, in described sandwich structure 7, set up a longitudinal rib 9 every 25cm.
It should be pointed out that for those skilled in the art, not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.In the present embodiment not clear and definite each ingredient all available prior art realized.