7 results about "Marine architecture" patented technology

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 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 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 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.