11 results about "Marine architecture" patented technology

The invention discloses a marine building foundation scour risk assessment and control method. The method comprises the steps that S1, the scour risk of a marine building foundation is defined; s2, marine building foundation scouring risk factor identification and risk estimation; s3, determining a scour risk grade standard, an acceptance criterion and a control strategy of the marine building foundation; s4, constructing a foundation scouring risk evaluation model, and evaluating the foundation scouring risk grade of the marine building; and S5, performing decision-making control on the scouring risk of the marine building foundation. According to the method, a reasonable scour protection strategy is provided for main risk factors, and the construction and operation cost of the marine building is reduced.

Provided are a marine concrete composition using dechlorination microorganisms capable of easily removing chlorine generated by seawater through an electrical method by allowing electrons emitted from electricity-generating microorganisms to flow through steel fibers incorporated into ultra-high-performance concrete (UHPC) or high-performance fiber reinforced concrete (HPFRCC) through a dechlorination microbial capsule carrier and capable of self-healing concrete crack sites through a self-healing microbial capsule carrier and is also capable of fundamentally solving the problem of reduced durability against salt damage of ultra-high-performance concrete or high-performance fiber reinforced concrete for application in marine construction environments through a dechlorination microbial capsule carrier, and a method for constructing a marine concrete structure using the same.

The application relates to the technical field of building materials for marine construction engineering, in particular to a buckle type connected high-performance anticorrosion sleeve-seawater sea sand concrete composite column and a construction method thereof. The composite column comprises a high-performance reinforced concrete sleeve located at the outside, and a seawater sea sand concrete filling layer is arranged in the high-performance reinforced concrete sleeve. The high-performance reinforced concrete sleeve is spliced by a plurality of high-performance reinforced concrete sleeve unit segments, and comprises a bottom sleeve unit segment, N middle sleeve unit segments and a top sleeve unit segment, and N is greater than or equal to 0. Concave-convex splicing structures matched with each other are arranged between the upper end of the bottom sleeve unit segment and the lower end of the middle sleeve unit segment and between the upper end of the middle sleeve unit segment and the lower end of the top sleeve unit segment. The seawater sea sand concrete used in the composite column can better utilize marine resources, and the high-performance concrete can better resist seawater erosion, protect the internal steel bars from rusting, and improve the mechanical properties and durability of the structure.

The invention relates to a corrosion-resistant welding wire for marine building structure high-strength steel and a preparation method of the corrosion-resistant welding wire, belongs to the technical field of welding materials, and solves the problems that in the prior art, a marine building structure high-strength steel welding material is insufficient in corrosion resistance and poor in obdurability matching under the high-temperature, high-humidity and high-salt marine atmospheric environment. The welding wire comprises the following chemical components in percentage by mass: 0.05 to 0.10 percent of C, 0.4 to 0.6 percent of Si, 1.80 to 2.00 percent of Mn, 3.5 to 4.0 percent of Ni, 0.60 to 0.80 percent of Cr, 0.30 to 0.50 percent of Mo, 0.01 to 0.03 percent of Sn, 0.60 to 1.0 percent of Cu, less than or equal to 0.008 percent of P, less than or equal to 0.008 percent of S, less than or equal to 0.005 percent of O, less than or equal to 0.005 percent of N, less than or equal to 0.001 percent of H and the balance of Fe and inevitable impurities. By controlling the mass ratio of Cu to Sn to be 20-100 and the equivalent ratio of chromium to nickel to be 19%-37%, the yield strength of deposited metal of the welding wire is larger than or equal to 700 MPa, the tensile strength is larger than or equal to 800 MPa, the impact absorption energy at the temperature of-40 DEG C is 60-150 J, and the corrosion weight loss rate is smaller than or equal to 1.52 g / m < 2 > / h. The welding wire is particularly suitable for welding high-strength steel with the tensile strength not lower than 700 MPa for a marine building structure.

The utility model discloses a light steel protective structure for marine buildings, and relates to the technical field of marine buildings, the light steel protective structure comprises a plurality of vertical rods, the plurality of vertical rods are arranged in a straight line, the lower part of the front surface and the lower part of the rear surface of each vertical rod are respectively provided with a mounting piece, the interior of each mounting piece is provided with a round hole, and the round holes are communicated with the vertical rods. The top ends of the vertical rods are provided with balls, the balls are fixedly connected with the vertical rods, a supporting strip is arranged between every two adjacent vertical rods, the supporting strips are fixedly connected with the vertical rods, a blocking strip is arranged between every two adjacent vertical rods and close to the upper portion of the supporting strip, and blocking cloth is arranged between the supporting strips and the blocking strip. According to the utility model, the barrier strips, the blocking cloth and the supporting strips are arranged between the adjacent vertical rods, when sea waves are encountered, the blocking cloth can shield and prevent seawater from being splashed into the marine building, and the barrier strips and the supporting strips can improve the connection stability of the adjacent vertical rods.

The utility model relates to the field of basalt fiber composite rebars, in particular to an anti-corrosion light basalt fiber composite rebar used in the marine building field, which comprises a plastic inner core and a basalt fiber outer cylinder, the basalt fiber outer cylinder is sleeved outside the plastic inner core, and the basalt fiber outer cylinder is formed by mixing basalt fibers and resin. And the resin is mixed and solidified to form a hard structure. The basalt fiber composite bar has the effect of reducing the density of the basalt fiber composite bar.

The utility model relates to the technical field of marine construction engineering, and provides a spider web layered honeycomb bionic aluminum alloy pipe-concrete composite column. The spider web layered honeycomb bionic aluminum alloy pipe-concrete composite column comprises a honeycomb aluminum alloy sandwich layer, a self-similar hexagonal aluminum alloy pipe, quadrilateral concrete filled in the aluminum alloy pipe and a connecting aluminum plate between the honeycomb aluminum alloy sandwich layer and the aluminum alloy pipe which are sequentially arranged from outside to inside. And the aluminum alloy and the cellular network formed by the aluminum alloy are filled with the quadrilateral concrete. By the adoption of the honeycomb aluminum alloy sandwich layer, the honeycomb aluminum alloy sandwich layer has an excellent buffering effect on ship impact in the marine environment, effective heat insulation, damp heat resistance and corrosion resistance are achieved, the constraining force on concrete is enhanced through the honeycomb network structure, the pressure resistance and stability of the whole structure are improved, external buckling damage which is likely to happen to a traditional aluminum pipe is remarkably reduced, and the service life of the aluminum pipe is prolonged. The defects of an existing structure are overcome.

The invention discloses an interface coupling agent treatment method for a basalt fiber bar and weathering steel connecting piece. The method comprises the following steps: rotating a basalt fiber rib at a low speed to penetrate into a preformed hole of a pretreated weathering steel connecting piece, then spraying a coupling agent coating composition at the joint of the basalt fiber rib and the pretreated weathering steel connecting piece, and carrying out room-temperature standing, pressurized pre-curing and segmented heating curing to finish interface treatment. According to the method, the problems that a traditional process coating is prone to being scratched and interface filling is uneven are solved, the interface drawing strength, fracture toughness and salt fog resistance are remarkably improved, and the method can be widely applied to extreme bearing engineering scenes such as wind power towers, bridge anchoring and marine buildings.

The invention provides a fabricated sandwich wallboard suitable for a marine environment and a manufacturing method of the fabricated sandwich wallboard. The wallboard comprises an upper leaf board and a lower leaf board which are made of a seawater and sea sand fiber cement-based material, and a core board made of a seawater and sea sand foam fiber cement-based material. Meshes composed of transverse bars and longitudinal bars made of fiber reinforced composite materials are embedded in the upper leaf plate and the lower leaf plate, the meshes on the two sides form a truss structure through tie bars arranged in a spatial V shape, the bottom ends of the two tie bars are fixed to the nodes of the mesh on one side, the opening ends of the two tie bars are connected with the two nodes of the mesh on the other side respectively, and energy dissipation units distributed in a staggered mode are formed. The sandwich wallboard adopts a full non-metal material system, uses local materials from sea sand and seawater, and has excellent corrosion resistance and impact resistance. The manufacturing method comprises the processes of mesh binding, layered pouring and maintenance. The problems that traditional reinforced concrete in marine buildings is prone to corrosion, large in dead weight and the like are solved, and the purposes of light weight, high durability and low maintenance cost are achieved.

The invention relates to a prestressed FRP rib seawater and sea sand concrete beam and a design method thereof, and belongs to the technical field of marine building engineering.The method comprises the steps that geometric, material and environmental parameters of components are obtained; on the basis of plane section assumption and a material constitutive relation, a normal section flexural capacity theoretical value is deduced, a bonding influence coefficient and a seawater concentration influence coefficient are introduced for correction, and the designed flexural capacity is obtained; sectional inertia moments of the component in different stages are calculated in a segmented mode, and a short-term rigidity theoretical model is established and corrected to calculate deflection; a maximum crack width theoretical model is established, a bonding influence coefficient is introduced for correction, the high strength of the prestressed FRP rib and the ductility of the SFCB rib are utilized, the problems that a conventional FRP rib beam is low in strength utilization rate and remarkable in brittle failure are solved, a set of accurate and practical design theory is provided, and the method is suitable for the marine environment.