70results about How to "Protect the main structure" patented technology

The invention relates to a shape memory alloy web friction self-reset steel frame joint.The joint is composed of a column, a bracket, beams, shape memory alloy stay rope units, tensioning nuts, fixing nuts, arc hole high-strength bolts and central high-strength bolts.The bracket is welded to the side, close to the beams, of the column, a double-web mode is adopted for the bracket, and the bracket is connected with beam webs through the high-strength bolts.Arc holes are formed in the parts, at the arc hole high-strength bolts, of double webs of the bracket, the contact faces of the beam webs and the double webs of the bracket are subjected to friction treatment, friction parameters are adjusted with prestress of the high-strength bolts, the upper portions and the lower portions of the beams are connected with the column through the shape memory alloy stay rope units respectively, and the initial states of shape memory alloy stay ropes are controlled by adjusting the tensioning nuts and the fixing nuts.The shape memory alloy web friction self-reset steel frame joint has the advantages of being simple in structure, high in practicability, definite in stress, high in energy dissipation, capable of achieving self-resetting and the like.

The invention discloses a shape memory alloy composite flange friction steel structure beam column splicing joint.The joint is composed of a column, a bracket, a beam, a web plate bolt, a web plate splicing plate, a shape memory alloy wire, a flange splicing plate and double nuts and bolts, wherein the bracket stretches from the column in the direction of the beam, a web plate of the bracket and a web plate of the beam are spliced through a high-strength bolt, a flange of the bracket and a flange of the beam are spliced through the double nuts and bolts, and the shape memory alloy wire is wound between the double nuts and bolts.According to the joint, energy-dissipating capacity is provided through friction damping in a small earthquake, energy-dissipating capacity is provided through friction damping and superelasticity damping together in a major earthquake, the joint can recover to the original state after the earthquake, and the joint has the advantages of being simple in structure, high in practicality, definite in stress, high in energy dissipation, capable of achieving self-restoration and the like.

A multi-tuned mass damper vibration absorption design method for an arc-shaped steel gate comprises the following steps that 1, a finite element method is adopted for carrying out dynamic characteristic and power response analysis on the arc-shaped steel gate; 2, the influence of water pressure on the dynamic characteristic of the arc-shaped steel gate is simulated; 3, modal strain energy analysis is carried out on the arc-shaped steel gate to determine the optimal mounting position of an MTMD; 4, a multi-tuned mass damper is mounted on a branch arm of the arc-shaped steel gate; 5, according to the actual stress condition of the arc-shaped steel gate, the number of single-tuned mass dampers in the multi-tuned mass damper, the frequency distribution range of the multi-tuned mass damper and the damping rate of the multi-tuned mass damper are determined through optimization. The multi-tuned mass damper is arranged on the branch arm of the arc-shaped steel gate, the flow induced vibration response of the branch arm and even the whole structure can be effectively reduced under the condition that parameters of the multi-tuned mass damper are reasonable, and the aim of protecting the main structure is achieved.

The invention discloses a composite rotary cross arm. The composite rotary cross arm comprises a supporting insulator and a composite insulator, wherein the supporting insulator and the composite insulator are hinged to the same side of a tower body; the supporting insulator is vertical to the tower body; the tail end of the composite insulator points to the tail end of the supporting insulator in an inclined manner, and the tail end of the composite insulator is connected with the tail end of the supporting insulator through a wire hanging clipper connected with a ground wire; the supporting insulator is arranged below the composite insulator, and an included angle between the supporting insulator and the composite insulator is 30-45 degrees; components for hinging the supporting insulator and the composite insulator with the tower body comprise two steel angles arranged up and down, two sides, oppositely arranged, of the two steel angles are respectively provided with a hinging shaft, the other sides of the two steel angles are respectively and fixedly connected with the tower body, each hinging shaft is provided with a hinge, the other end of each hinge is provided with a hanging plate, and the hanging plates are vertical to the hinges and are used for respectively connecting the supporting insulator and the composite insulator. The composite rotary cross arm disclosed by the invention has the advantages of simple structure, convenience in implementation, reasonable design, light weight and effective protection on the main body of a tower.

The invention provides a rotary friction type replaceable energy dissipation connecting beam which comprises a replaceable section positioned at a center of a connecting beam and non-energy dissipation sections which are distributed at two sides of the replaceable section and are arranged at positions of shear wall limbs, wherein two ends of the replaceable section are fixedly connected with the non-energy dissipation sections respectively, the replaceable section comprises two rotary friction energy dissipation damper monomers which are arranged back and forth and a profile steel plate whichis positioned at a middle space of the replaceable section, and the profile steel plate is integrally connected to the non-energy dissipation sections so as to enhance integrity and action consistencyof the replaceable section; a bottom plate of an outer sleeve of a rotary friction energy dissipation damper monomer is fixedly connected with a bottom plate bolt of an embedded cylinder and is respectively connected with a transmission rod bolt at the left side and the right side along different diagonal lines, and a high-damping rubber core is filled in a cylinder wall formed by the embedded cylinder and the outer sleeve. By the adoption of the rotary friction type replaceable energy dissipation connecting beam, the connecting beam can be properly adjusted according to requirements by meansof replacing the connecting beam, installation is convenient, and applicability is strong, so that the anti-seismic performance of a structure is improved, and the structure is used for restoring a functional shear wall structure system.

The invention discloses a non-load bearing building energy-saving wallboard and a preparation method thereof. The wallboard is prepared by adopting a prefabricating method, and comprises a decorative layer, a protective layer, a heat insulation layer and a concrete structural layer, wherein the decorative layer is positioned on the outer surface of the wallboard; the protective layer is positioned at the inner side of the decorative layer, and consists of polymer modified cement mortar and alkali-resistant fiberglass mesh; the heat insulation layer is positioned at the inner side of the protective layer, and consists of inorganic heat insulation mortar or an inorganic heat insulation board with compressive strength of over 1.0MPa; and the concrete structural layer is positioned at the inner side of the heat insulation layer and positioned at the outer side of a building foundation structure. The prefabricated wallboard is combined with a building envelope wallboard through a lightweight external wall heat insulation decorating system, so that good heat insulation and decoration properties can be provided on the premise of ensuring the safety performance of the system, the difficulty of building construction using the wallboard is effectively reduced, and energy is reduced.

The invention discloses a prefabricated knee brace bearing energy-consuming support and a construction method thereof. The prefabricated knee brace bearing energy-consuming support includes an energy-consuming supporting connecting steel assembly, energy-consuming strip steel plates and out-of-plane restraint steel plate sleeves, wherein the energy-consuming supporting connecting steel assembly includes transverse parts and vertical parts, the upper ends of the energy-consuming strip steel plates are fixed to the transverse parts, and the lower ends of the energy-consuming strip steel plates are fixed to the vertical parts; cavity spaces are arranged in the middle part of the out-of-plane restraint steel plate sleeves, the energy-consuming strip steel plates are inserted into the cavity spaces, and energy-consuming displacement gaps are pre-reserved between the out-of-plane restraint steel plate sleeves and the energy-consuming supporting connecting steel assembly. On the one hand, theprefabricated knee brace bearing energy-consuming support consumes energy, and on the other hand, the prefabricated knee brace bearing energy-consuming support prevents the falling of beams; and in the event of a failure of pre-stressed tendons in the beam, shear resistant support plates can bear the shear force transmitted by the beams and provide a second line of defense for the structure. Onesupport or a plurality of supports can be used at one beam-column joint, and the multiple supports can be operated together as a parallel system. The prefabricated knee brace bearing energy-consumingsupport is convenient to replace after an earthquake, and provides better post-earthquake recoverability.

The invention discloses a sleeve friction type shock absorption bracket capable of adjusting damping energy dissipation. The bracket comprises a bearing hanging rod, a transverse friction energy dissipation diagonal brace, a longitudinal friction energy dissipation diagonal brace, adjustable hinges and a support screw rod, a hanging bracket when a pipeline is used as a pipeline container and a horizontal cross rod when a trunking is used as a pipeline container; the top of the bearing hanging rod is connected with a main body structure and the bottom of the hanging rod is connected with the hanging bracket through the support screw rod; two ends of the longitudinal friction energy dissipation diagonal brace are respectively connected with the hanging bracket and the main body structure through the adjustable hinges; the pipeline is inserted into the hanging bracket and fixed; the horizontal cross rod is connected with the main body structure through the bearing hanging rod, the transverse friction energy dissipation diagonal brace and the longitudinal friction energy dissipation diagonal brace; and the trunking is fixedly connected to the horizontal cross rod through bolts. The bracket is simple in structure, stable in bearing and energy consumption, adjustable in friction characteristics, convenient to normalize, capable of providing a reliable bearing system and energy-dissipation and shock-absorption protection for electromechanical pipeline facilities, and accordingly safety of the pipelines and main body structures is improved.

The invention discloses an energy-saving and environmentally friendly material. The material comprises 5 to 10 parts of sepiolite, 5 to 10 parts of wood fibers, 15 to 20 parts of diatomaceous earth, 3 to 5 parts of calcium silicate powder, 3 to 5 parts of silicon aluminum oxide powder, 3 to 5 parts of river sand micro-powder, 10 to 12 parts of cement, 10 to 14 parts of porous expanded perlite powder, 3 to 5 parts of sodium polyacrylate, 5 to 8 parts of an anti-cracking agent, 3 to 6 parts of glass beads, 5 to 8 parts of gypsum and 5 to 10 parts of a flame retardant. The energy-saving and environmentally friendly material has a wide application range and is not limited to the external wall heat insulation of the building. The material can effectively protect a main structure, can resist fire and water, is conducive to maintaining stability at the room temperature, is not hot in summer, is not cold in winter, and can realize energy saving and environmental protection.

The invention relates to a novel waterproof insulation roof building material and preparation method thereof, in particular to a natural stone PU waterproof insulation board and method for preparing natural stone PU waterproof insulation board by applying polyurethane foam spraying technique. The natural stone PU waterproof insulation board takes natural stone as a basement layer; wherein hard polyurethane foam layer is arranged on one surface of the natural stone at least, and the surface of the hard polyurethane foam layer is covered with a waterproof interface layer. The invention provides a novel building material with both waterproof function and heat insulation function, the natural stone and waterproof and heat insulation processing are integrated, waterproof insulation performance is good, construction is convenient, and safety factor after construction is high, thus eliminating the heat bridge of outer wall at a large extent, which is impossible for inner heat insulation, being widely applied to energy conservation waterproof insulation in the building field and having a wide market prospect.

The invention discloses a fireproof insulation board of an outer wall.The fireproof insulation board is prepared from 31-34 parts of cement, 32-39 parts of fly ash, 4-7 parts of quartz powder, 2-5 parts of paper pulp, 9-14 parts of inorganic fibers, 4-9 parts of lime, 1-3 parts of a water reducing agent, 1-3 parts of a composite activity activator, 35-85 parts of fly ash, 11-42 parts of vitrified microbeads, 12-35 parts of acrylic acid emulsion, 4-9 parts of a halogen-free phosphorus series, 2-11 parts of glass fibers, 1-6 parts of a defoaming agent and 1-4 parts of a dispersing agent.The outer side of a main structure is wrapped by the fireproof insulation board of the outer wall, therefore, the main structure can be protected, and the life of a building can be prolonged; hot bridges of a building structure can be effectively decreased, the effective space of the building is increased, the wall surface water condensation phenomenon caused by cold bridges and the hot bridges can be eliminated, and the living comfort degree is improved; the physical performances such as sound insulation and heat insulation of other building materials are not influenced; the fireproof insulation board is more beneficial for volatilization of harmful substances in an outer wall heat insulation material.

The invention relates to a self-reset shear energy-consuming replaceable connection beam. The self-reset shear energy-consuming replaceable connection beam comprises a non-energy consuming section steel connection beam semi-embedded in a shear wall limb and a replaceable section energy-consuming connection beam, and the two ends of a non-replaceable section are fixedly connected with a replaceablesection in a bolt mode. The replaceable section comprises two self-reset shear energy-consuming dampers which are connected with outer layer I-shaped steel through transmission rods. With the relative motion of two wall limbs of a coupling shear wall, the replaceable connection beam end is deformed, the axial relative motion of the internal self-reset shear energy-consuming dampers is caused by the transmission rods, the shear deformation of internal annular shear lead blocks and the axial deformation of external assembled cylindrical spiral spring bellows of the dampers consume energy, and part of original vibration characteristics of the dampers are restored by shape memory alloy after an earthquake. Compared with the prior art, the self-reset shear energy-consuming replaceable connection beam has the advantages of self-reset, high energy consumption intensity, adaptability to different vibration strength, controllable failure position, replaceable and the like, and can be used forrestoring a functional shear wall structure system.

The invention discloses a roll ball type multidirectional damping control device comprising a semi-closed cylindrical structure, a hollow metal mass ball, an inwards concave type hook face bearing table, springs and anti-collision rubber. The semi-closed cylindrical structure and the inwards concave type hook face bearing table are connected, and the inwards concave type hook face bearing table is internally provided with the hollow metal mass ball. The springs are arranged on the connection positions of the semi-closed cylindrical structure and the inwards concave type hook face bearing table. The hollow metal mass ball rolls in the inwards concave type hook face bearing table in any direction, and when a structural object is under horizontal motivation, large damping force is generated. Liquid is injected into the hollow metal mass ball, and the liquid in the hollow metal mass ball and the hollow metal mass ball form a tuned liquid damper so as to supply damping force to a structure. The purpose of horizontal-direction multi-stage vibration control is achieved; and meanwhile, when the structural object is under vertical motivation, through vertical movement of the inwards concave type hook face bearing table, by means of the method that the hollow metal mass ball impacts the top rubber to consume energy, vertical vibration of the structure is controlled.

The invention discloses a haunch supporting type energy consumption bearing brace and its construction method. The energy consumption bearing brace comprises an anti-shear supporting steel plate, an energy consumption strip steel plate and an external restriction steel plate sleeve; the anti-shear supporting steel plate comprises a cross plate and a vertical plate, the upper end of the energy consumption strip steel plate is fixed with the cross plate, and the lower end thereof is fixed with the vertical plate; the middle part of the external restriction steel plate sleeve is provided with a cavity space, and the energy consumption strip steel plate is inserted to the cavity space; an energy consumption displacement gap is reserved between the top end face of the external restriction steelplate sleeve and the lower side surface of the cross plate. On the one hand, the haunch supporting type energy consumption bearing brace consumes energy; on the other hand, it prevents beam from falling; when the prestress rib in the beam is failed, the anti-shear supporting steel plate can bear the shear force from the beam and provides a second defense line for the structure. One beam pillar node can use one or more braces, multiple braces can be a parallel system when they are worked together. The brace is convenient and rapid to replace after shock, and provides good after-shock restorability.

The invention provides a steel pipe RPC frame dense rib composite shear wall. Steel pipe RPC frame columns and a dense rib composite plate located between the steel pipe RPC frame columns are included; the steel pipe RPC frame columns and the dense rib composite plate are connected through U-shaped anti-shearing keys, and are poured into a whole with concrete; the dense rib composite plate comprises a plurality of rib beams and rib columns; the reinforced concrete rib beams and the rib columns form a whole rib cell comprising a plurality of rectangular rib cells; each rectangular rib cell is filled with RPC building blocks; and the RPC building blocks, the rib columns and the rib beams are poured into a whole by concrete. According to the steel pipe RPC frame dense rib composite shear wall, the advantages that the steel pipe RPC columns are large in strength and rigidity and good in plasticity and toughness are combined with the advantages that the RPC dense rib composite plate is in energy dissipation and earthquake mitigation, and is adjustable in rigidity, the energy dissipating capacity under the earthquake effect is high, graded energy dissipation can be achieved, and a plurality of seismic fortification lines are formed; and meanwhile, the steel pipe RPC columns and the dense rib composite plate are prefabricated in advance, construction is easy, and maintaining and reinforcing after an earthquake are facilitated.

The invention discloses an environmental-protection and energy-saving waterproof heat insulation material and a preparation method thereof. The preparation method comprises the following steps: adding polypropylene short fibers and white cement to a stirrer in proportion, stirring the polypropylene short fibers and the white cement until the polypropylene short fibers are completely opened and are dispersed; and adding redispersible latex powder, mica powder, heavy calcium powder, cobblestones, quartz sands, hydroxypropyl methyl cellulose, a polycarboxylate water reducer and silane-based powder to the same stirrer in proportion, and stirring all above materials until the materials are uniform. The material has the advantages of greenness and environmental protection, no pollution, substantial energy saving effect, protruding flexibility, protruding water and crack resistance, excellent weatherability, good compression and wear resistance, large hardness, long life, seamlessness and strong waterproofing and bonding properties, can be directly used in construction of various bases, and marks a new epoch in the direct use of a polyethylene polypropylene fiber material; and the preparation method has the advantages of simple production process, long storage life, and is a most effective, simple and environmentally-friendly new technology with longest life, used for radically controlling hot roofs and roof leakage.

The invention provides a shock isolation layer containing a mixture formed by glass bead mortar, glass beads and fine sand and a construction method thereof, belongs to the field of building structure foundation shock isolation and particularly relates to a shock isolation layer containing the mixture formed by the glass bead doped mortar, the glass beads and the fine sand and manufacture, wherein the shock isolation layer is laid between a foundation and an upper-portion structure. A plain concrete cushion layer is laid on the foundation. Steel sleeves and limiting steel bars are pre-embedded in a lower foundation beam, and the limiting steel bars penetrate the steel sleeves to reach to the top face of an upper foundation beam and are anchored through steel base plates and nuts. The shock isolation layer with the glass beads, the fine sand and mortar is laid between the upper foundation beam and the lower foundation beam. The steel sleeves are full of the fine sand. The shock isolation layer and the construction method are applicable to the foundation shock isolation of rural architectures and have very important significance on rural earthquake resistance and hazard mitigation. The construction method is simple, convenient, economic and effective and facilitates popularization and application of a large number of villages and small towns.

The invention discloses an energy-saving insulation material, characterized by comprising, by weight, 18-28 parts of calcium silicate, 5-10 parts of diatomite, 8-14 parts of quartz sand, 2-5 parts of polyvinyl butyral, 10-16 parts of pure acetate, 20-30 parts of porous expanded perlite, 3-5 parts of aluminum silica powder, 8-14 parts of magnesium sulfate, 6-13 parts of n-butyl methacrylate, 2-5 parts of acrylic emulsion, 4-10 parts of silicone-acrylic emulsion, 5-14 parts of stearic acid, 2-5 parts of aminopropyltriethoxysilane, 1-5 parts of acetone-formaldehyde polycondensate, 1-3 parts of acrylamido-methylpropane sulfonic acid copolymer, 3-8 parts of lauryl dimethyl amine oxide, 5-12 parts of modified lightweight calcium carbonate, and 8-20 parts of deionized water. The energy-saving insulation material has good thermal insulation, is fireproof, waterproof and corrosion resistant, is used for building exterior wall insulation, is capable of effectively protecting a main structure with the influence of 'heat bridge' substantially eliminated, helps stabilize indoor temperature to ensure that summer is not hot and winter is not cold, and can save energy and protect environment.

The invention discloses an energy-saving environment-friendly material which consists of the following components in parts by weight: 30-50 parts of coal ash, 20-25 parts of quick lime, 1-2 parts of silicate, 2-4 parts of calcium carbonate powder, 10-20 parts of epoxy resin, 10-15 parts of expanded perlite, 3-7 parts of aluminum hydroxide, 10-15 parts of a thickening agent, 1-5 parts of a water retention agent, 8-13 parts of kieselguhr and 1-2 parts of wood fibers. The energy-saving environment-friendly material is wide in application range, can be not only applied to heat preservation of outer walls of buildings, but also used as other heat-preservation slurry, is capable of effectively protecting main body structures, preventing fire, water and corrosion and alleviating dampness of wall bodies, is beneficial to room temperature stability, is capable of keeping cool in summer and warm in winter, and is energy-saving and environment-friendly.

The invention discloses a natural stone polyurethane heat-preserving waterproof heat-insulating integrated plate. The natural stone polyurethane heat-preserving waterproof heat-insulating integrated plate comprises a natural stone layer, a polyurethane foam layer and a waterproof interface layer; the natural stone includes granite and marble and is a base material, one surface is sprayed with the waterproof interface layer, and the waterproof interface layer is a polyvinyl formal layer, the waterproof interface layer is sprayed on the waterproof interface layer, and the thickness is 3-6 mm. Natural stone and waterproof heat-preserving and heat-insulating processing are integrated in the plate, and the plate is high in waterproof heat-preserving and heat-insulating performance and convenient to construct and is a novel roof building and ornament material with waterproof heat-preserving and heat-insulating functions. A heat bridge of an outer wall is omitted, so that the heat-preserving and heat-insulating effects are good, and the waterproof interface layer is sprayed and has the waterproof effect; the main body structure can be protected so that the outer wall structure can be in a relatively stable normal temperature status, cold and hot changes of the structure layer are avoided, temperature difference cracks are eliminated to the great extent, and the service life is prolonged.

The invention relates to a steel skeleton expanded rock pressure relief plate and a pressure relief structure using the same. The pressure relief plate comprises a steel skeleton and a steel wire net laid on the steel skeleton, wherein a expanded rock lightweight core material is arranged on the steel skeleton and the steel wire net; a cement-based composite impermeable protective layer is arranged on the expanded rock lightweight core material; a main rib protective layer is arranged below the steel skeleton and the steel wire net; the weight per unit area of the steel skeleton expanded rock pressure relief plate is 40 to 50 kg/m<2>, and the pressure relief threshold value of the steel skeleton expanded rock pressure relief plate is about 8.0 to 10.0 KN/m<2>; the expanded rock lightweight core material is a 350-grade to 450-grade expanded rock core material; the main rib protective layer is 15 to 20 mm in thickness; the cement-based composite impermeable protective layer is 1 to 3 mm in thickness. The steel skeleton expanded rock pressure relief plate provided by the invention has the characteristics of heat preservation, fire resistance, sound insulation, pressure relief, load-bearing property and the like. Through inspections on a series of dynamic destruction tests, the pressure relief plate consisting of the expanded rock has excellent pressure relief performance under the action of dynamic load.