38results about How to "Conducive to earthquake resistance of the structure" patented technology

The invention discloses an inorganic heat insulation load-bearing concrete, belonging to the technical field of heat preservation load-bearing concrete. The invention aims at solving the problem of providing a concrete which not only can meet the requirements of stress performance of structural components of buildings, but also has good heat preservation property. The adopted scheme comprises: the concrete comprises the components with mix proportion by weight (kg/m<3>): the ratio among composite lightweight doped-aggregate, cement, sand, carpolite, ceramsite, pulverized fuel ash, water and admixture is (6-225): (200-800): (300-700): (500-1600): (150-650): (10-600): (80-400): (0.1-200); wherein the composite lightweight doped-aggregate is one or mixture of more in vitrified micro-bead, vermiculite, expanded perlite and modified expanded perlite, and has the density of (50-180)kg/m<3>. Therefore, the load-bearing concrete can be widely applied to the field of building technology.

The invention aims at providing a fiber reinforce plastic (FRP) reinforced concrete-filled steel tube combination column which comprises a steel tube, a hoop rib, an FRP reinforced rib and a longitudinal reinforcement, wherein the hoop rib and the FRP reinforced rib are arranged in the steel tube; the inner wall of the steel tube is provided with fixed angle iron; the end part of the FRP reinforced rib is fixed on the angle iron; the FRP reinforced rib is provided with a hole, and the hoop rib passes through the hole in the FRP reinforced rib; the longitudinal reinforcement is fixed on the hoop rib; the steel tube is filled with concrete. An FRP reinforced rib plate internally provided with the hoop rib and the longitudinal reinforcement is arranged in the FRP reinforced concrete-filled steel tube combination column, and the concrete can be separated again, so that the restraint effect of the concrete is improved, the bearing capacity of the concrete is improved, and the tube wall on the stressed side is effectively prevented from being bended. By adopting a structure of enabling reinforced concrete, the FRP reinforced rib and the steel tube to cooperative work, the FRP reinforced concrete-filled steel tube combination column is simple in structure and convenient to construct, and has the characteristics of being light in weight, high in carrying capacity and good in ductility and shock resistance.

The invention belongs to the technical field of the civil engineering building structure, in particular to an overlapped shear wall with a prefabricated part and a cast-in-situ part and a manufacturing method thereof. The traditional reinforced concrete shear wall is divided into two parts, wherein one part is prefabricated (a PCF plate) in a factory; the other part is cast in situ in a construction site; and after block cast, the prefabricated part (the PCF plate) and the cast-in-situ part are formed the overlapped shear wall. The plate thickness of the prefabricated PCF plate is commonly controlled at 60-80mm. The plate width of the single PCF plate is not greater than 3.0m, the plate height is not greater than 6.0m, and the plate weight is not greater than 2 tons. A single-layer two-wayreinforced bar net piece is configured in the plate; simultaneously, longitudinal and transverse overlapped reinforced bars are embedded at the inner side according to a distance of 450-600mm in advance, and the exposed parts of the overlapped reinforced bars are anchored into the cast-in-situ part. Compared with a pure external-hanging wall plate of a shear wall structure used at present, the invention lessens the self weight, lowers the construction difficulty, enhances the production efficiency and the construction quality and has energy saving and environmental protection.

The invention relates to steel reinforced concrete columns, particularly to a high-strength spiral hoop confined high-strength wide flange cross-shaped steel reinforced octagonal concrete column, which overcomes the defects of the cross-shaped steel reinforced concrete column that the construction is difficult, the thickness of the concrete protective layer causes the insufficient realization of the bending resistance of the steel reinforced, and the high-strength steel reinforced has high possibility of lateral deflection. As the longitudinal reinforcing steel is removed, the area of the reinforcing steel is converted to the steel reinforced flange, the construction and design of the steel reinforced concrete column are facilitated; the spiral hoop is the high-strength octagonal spiral hoop, the inner side of the spiral hoop of the confined steel reinforced flange is closely attached to the surface of the steel reinforced flange, the unstability critical stress of the steel reinforced flange is improved through the free edge of the confined steel reinforced flange, and the spiral hoop is closely joined with the flange at the same time, so as to realize the action of stud, as a result, the coordination between the concrete and the steel reinforced is better realized; the concrete protective layer of the steel reinforced ranges from 30 to 40mm., so as to meet the requirement of fire prevention and enables the steel reinforced to better realize the action of bending resistance; and as the area cut from the octagonal concrete column is less than 8%, the area can be compensated by improving the concrete strength. The high-strength spiral hoop confined high-strength wide flange cross-shaped steel reinforced octagonal concrete column is applied to the steel reinforced concrete structures.

The invention discloses a bolt connection node for a bamboo/wood frame structure in which a beam and a column are clamped outside a steel plate, and belongs to the field of civil engineering. The bolt connection node for the bamboo/wood frame structure in which the beam and the column are clamped outside the steel plate comprises the beam, the column, the connecting steel plate and bolts. The connecting mode that the beam and the column cover the connecting steel plate is adopted, second bolt holes are formed in the connecting steel plate, first bolt holes are formed in both the beam and the column, and the centers of the first bolt holes are aligned with the centers of the second bolt holes in the corresponding positions of the connecting steel plates. The bolts sequentially penetrate through the second bolt holes of the connecting steel plates, the first bolt holes of the beam or the column and the second bolt holes of the connecting steel plate and then are anchored with nuts into a whole. Friction force shearing resistance is generated by applying precompression to the connecting steel plate by the bolts. The bolt connection node has the advantages of being clear in force transmission, high in shearing resistance, convenient to construct and easy to machine.

A node for a combination beam and a 45-degree arranged cross steel reinforced concrete column relates to a steel reinforced concrete structure, and is used for overcoming the defects of the prior art and solving the problem of the rigid connection of the combination beam and the 45-degree arranged cross steel reinforced concrete column with a flange in a project. A circular steel tube is arranged within the height scope of a steel column internal node, so the connection problem of the rigid connection of the combination beam and the 45-degree arranged cross steel reinforced concrete column with the flange is solved. The external diameter of the circular steel tube is 40%-60% of the side length of a square column, the wall thickness of the circular steel tube is larger than or equal to the thickness of the flange edge of a steel beam in the combination beam, moreover, the wall thickness of the steel beam is not less than a half of the diameter of the maximum longitudinal bar of the combination beam, and the height of the circular steel tube needs to be respectively higher than the external longitudinal bars of the combination beam and the lower flange edge of the steel beam by 100 millimeters. The circular steel tube and a steel web in the column are welded through fillet welding, the steel beam in the combination beam is welded on the circular steel tube, the longitudinal bars of the combination beam are in plug welding on the circular steel tube, and the hopping of the node is welded on a steel beam web. The node disclosed by the invention is used for the steel reinforced concrete structure.

The invention particularly relates to a magnesium oxysulfate melamine paper decoration surface inorganic rock porcelain non-combustible board and a production method thereof, wherein the raw materialscomprise: 40% of magnesium oxysulfate, 12% of magnesium oxide, 5% of alumina, 5% of a glass fiber cloth, 4% of perlite, 3% of electric-conduction procelain clay powder, 3% of electric-conduction micapowder, 4% of lithopone, 11% of 100-200 mesh wood powder, 4% of tourmaline powder, 3% of a balance cloth immersed with a melamine glue, 3% of decoration paper immersed with a melamine glue, and 3% ofwear-resistant paper immersed with a melamine glue. The production method comprises: 1) preparing a magnesium oxysulfate substrate having a fine pore structure; 2) respectively spreading both surfaces of the magnesium oxysulfate substrate with a balance cloth immersed with a melamine glue, decoration paper immersed with a melamine glue, and wear-resistant paper immersed with a melamine glue; and3) carrying out hot pressing molding. According to the present invention, the magnesium oxysulfate melamine paper decoration surface inorganic rock porcelain non-combustible board has advantages of light weight, smooth surface, high hardness, good fireproof performance, good moisture proof performance, good temperature-difference resistance, strong water resistance, no moisture absorption halogenaccumulation, good thermal insulation effect and wide application range, and does not contain asbestos, formaldehyde and harmful radioactive elements.

The invention relates to a construction method of an adobe wall suitable for a seismic fortification high-seismic-intensity area and adobes, and belongs to the technical field of constriction engineering. Multiple types of adobes are manufactured, and specific portions of the adobes are painted with water insulation and viscous energy consumption layers. The adobes are laid flatly in a joint staggering mode, two horizontal grooves and a plurality of vertical round holes penetrating through the full height of an adobe wall body are formed within an adobe wall layer high range, and vertical steel bars are embedded in strip foundations at the centers of the round holes. Longitudinal steel bars in the horizontal grooves hook the vertical steel bars in the vertical round holes in the ends of the adobe wall. Adobe wall sedimentation buffer areas are arranged at the intersections of the horizontal grooves and the vertical round holes of the adobe wall. Concrete is poured into the vertical round holes to form embedded columns, and concrete is poured into the positions, outside the sedimentation buffer areas, of the grooves to form embedded ring beams. After adobe wall body sedimentation is stable, the sedimentation buffer areas are filled with concrete, and the embedded ring beams and the embedded columns constitute ferroconcrete reinforcement grids in the adobe wall. The adobes play a role in reinforcing the whole adobe wall and remarkably enhancing seismic capacity.

The invention discloses an FRP-RC (fiber reinforced polymer-reinforced concrete) combined beam partially constrained by a fiber sleeve. The combined beam comprises an FRP formwork (1) for forming, a circular fiber sleeve (3) for improving the compressed property of concrete, and circular-arc-shaped pedestals (4) for fixing the fiber sleeve, wherein the FRP-RC combined beam has a rectangular section, the size of the section and the number of layers of FRP are determined through design calculation, and the length of the circular fiber sleeve is determined through calculation according to design needs. According to the invention, the structural bearing capacity is enhanced, the structural ductility is improved, and the construction progress is accelerated, therefore, the FRP-RC combined beam has relatively low engineering cost and is simple and convenient to construct.

The invention provides a novel fireproof and waterproof composite heat preservation wall structure. The novel fireproof and waterproof composite heat preservation wall structure is composed of a composite heat preservation plate and a fixing net rack, wherein the composite heat preservation plate and the fixing net rack are installed on the outer sides of a structural wall. The composite heat preservation plate comprises aluminum foil plate layers on the two sides and a polystyrene board heat preservation layer in the middle, and the aluminum foil plate layers and the polystyrene board heat preservation layer are connected through adhesives. The fixing net rack comprises wire meshes and expansion riveting bolts, wherein the two layers of wire meshes are located on the two sides of the composite heat preservation plate respectively, the bottoms of the expansion riveting bolts are anchored to the structural wall, the middles of the expansion riveting bolts penetrate through the composite heat preservation plate and the wire meshes, the tops of the expansion riveting bolts are connected with the outer wire mesh, an adhesion mortar layer is arranged on the outer portion of the outer wire mesh, and a decoration layer is arranged outside the adhesion mortar layer. The novel fireproof and waterproof composite heat preservation wall structure well solves the problem that due to the fact that the fire protection level is low when a polystyrene board serves as external wall heat preservation materials, using is limited; the novel fireproof and waterproof composite heat preservation wall structure has the advantages of being good in heat preservation and energy saving effect, high in fire protection level, resistant to water and earthquakes and convenient and rapid to construct.

The invention discloses a beam-arch consolidated triangular arch bridge. The beam-arch consolidated triangular arch bridge mainly comprises an arch rib (1), a main beam (2), flexible lifting rods (5)and arch rib transverse braces (6); the flexible lifting rods (5) are placed between the arch rib (1) and the main beam (2), wherein a rigid diagonal rod assembly is also arranged between the arch rib(1) and the main beam (2); the rigid diagonal rod assembly mainly consists of two rigid diagonal rods (3) in an inverted V shape; that is to say that the two rigid diagonal rods (3) and the main beam(2) form a triangular structure; and a diagonal rod cross-link (4) is also arranged between the two rigid diagonal rods. According to the beam-arch consolidated triangular arch bridge, the arch rib and the main beam are restricted by using a triangle; and meanwhile, the linear stiffness of the main beam is enhanced; and therefore, the integral rigidity of the structure is greatly enhanced; and the problem that a see-saw effect of the arch bridge is obvious under the action of half-span load can be greatly solved.

The invention belongs to the technical field of integrated plates, and particularly relates to an LVL structure and melamine paper facing novel plate and a manufacturing method thereof. The LVL structure and melamine paper facing novel plate comprises an LVL structure layer, wherein a wood veneer I, a wood veneer II and a wood veneer are sequentially attached from the LVL structure layer outwards,and melamine paper is attached to the surface of the wood veneer II. According to the LVL structure and melamine paper facing novel plate, the LVL solid wood veneers are used as base materials, a special production process is adopted for machining and compounding to form the novel plate, the novel plate belongs to the novel high-tech building decoration material, the defect problem existing in atraditional plate is overcome, the novel plate has the advantages that the performance is excellent, and the structure is stable, and the deformation warping probability of the plate is greatly reduced; and health and environmental protection are achieved, modern environmental protection requirements are met, non-toxic, odorless, formaldehyde-free and sound-isolating are achieved, and the novel plate can be widely applied to medical spaces, educational spaces, office spaces, business spaces, home spaces and the like.

Disclosed is a manufacturing process of a novel environment-friendly sound-insulating plate. The manufacturing process comprises the following steps that 1, after fly ash, glazed hollow beads, water, light-burned magnesium oxide, anti-crack and anti-leakage agents, a tackifying agent, Kaolinite powder and lime putty powder are fully and evenly mixed and stirred, sawdust powder is added, secondary stirring is conducted, and a first mixture is obtained; 2, the first mixture is poured into a mould, the mould is filled, the first mixture is flatly laid, the mould with the first mixture is put into a high-temperature sintering furnace to be sintered, and a base material plate is obtained after sintering; 3, magnesium chloride brine and talc powder are mixed, a pulp material is obtained after uniform stirring, the pulp material is poured on glass-fiber cloth, drying treatment is conducted in a high-temperature and high-pressure environment, and a film material is obtained; 4, the base material plate is wrapped with the film material, high-temperature and high-pressure compression molding is conducted, decorating, grinding and polishing are conducted after compression molding, and a product is obtained. The novel environment-friendly sound-insulating plate has good heat insulation property, sound insulation property and water-proof performance, materials are environmentally friendly and save energy, and the cost is low.

The invention relates to an inner wall fireproof decorative plate which comprises the following raw materials in percentage by weight: 18-26% of a magnesium chloride solution, 12-18% of thermal insulation mortar, 21-30% of magnesia powder, 4-8% of rock wool, 4-8% of fly ash, 8-15% of magnesium cement, 3-6% of titanium dioxide, 5-9% of magnesium oxide and 1-3% of nano silicon dioxide. The obtainedinner wall fireproof decorative plate has the advantages of fire resistance, heat resistance, water resistance, moisture resistance, light weight, high shock strength, environmental protection and healthiness.

The invention discloses a swing wall and a swing wall-frame structure, and relates to the technical field of swing wall structures. The swing wall comprises a swing wall body and a basic unit. The end face of the swing wall body is provided with a first arc piece. The basic unit is connected with the swing wall body, and a second arc piece is arranged on the end face of the basic unit; any one of the first arc piece and the second arc piece is an arc bulge, and the other one is an arc groove; the arc protrusion and the arc groove formed by the first arc piece and the second arc piece can rotate in a matched mode. According to the swing wall, for an external swing wall-frame structure, the self weight of the wall body can be transmitted to a lower foundation through a large contact surface. The hinged position is not located in the middle of the wall any more, in the swinging deformation process, the dead weight of the wall generates large restoring torque, and structural seismic resistance is facilitated. For an embedded swing wall-frame structure, the problem of stress concentration is solved compared with a traditional swing wall corner which is converted from line contact to surface contact in the swing deformation process.