37results about How to "Reduce hazards such as fire accidents" patented technology

The invention provides an industrialized assembly type special-shaped column steel structure frame-eccentric support system and belongs to the technical field of structural engineering. The industrialized assembly type special-shaped column steel structure frame-eccentric support system comprises assembly type truss plates, assembly type columns and eccentric support members. Each assembly type truss plate comprises lattice truss beams and floor slabs and is prefabricated in a factory, and the assembly type truss plates and beam-column joints of the assembly type columns are spliced through beam-end seal plates in a construction site, and the assembly type columns are spliced among layers in the site through bolts to form a multiple-layer truss plate steel frame structure. Based on the truss plate steel frame structure, the eccentric support members serve as lateral force resisting members and are connected with the truss beams in the assembly type truss plates and the bottoms or the tops of the assembly type columns. The assembly type truss plates, the assembly type columns and the eccentric support members are prefabricated in the factory and are assembled in the construction site through bolts.

The invention relates to a novel post-earthquake self-reset concrete framework-eccentric supporting structural system, and belongs to the technical field of earthquake prevention and disaster reduction. The initial rigidity of an embedded type cup-shaped foundation is basically the same as the rigidity of a cast-in-place concrete structure, under the condition of a small interlayer displacement angle, prestressed steel keeps elasticity, energy consummation steel bars enter the plastic state to dissipate energy, and the embedded type cup-shaped foundation can reset to the initial position after the earthquake action. Compared with the prior art, the novel post-earthquake self-reset concrete framework-eccentric supporting structural system overturns a traditional concrete structural building foundation, and basically solves the difficult problems that concrete structures are not easy to assemble and poor in ductility. Compared with the traditional concrete structural foundation, the novel post-earthquake self-reset concrete framework-eccentric supporting structural system has the advantages of being high in safety performance, small in environmental pollution, few in accident, low in manufacturing cost of projects and the like.

The invention relates to an industrialized multi-story high-rise assembled steel structure system, belonging to the technical field of structure engineering. The industrialized multi-story high-rise assembled steel structure system comprises assembled truss plates and assembled flange columns. The assembled truss plates comprise latticed truss beams with angle steel web members, column base joints and slabs. The assembled truss plates are prefabricated in a factory. On a construction site, the assembled truss plates are spliced together through beam end closing plates or the column base joints to form frame structure beam-slab layers; the frame structure beam-slab layers are vertically connected through the assembled flange columns to form a multilayer steel frame structure, and the assembled flange columns are arranged on the column base joints on the assembled truss plates; and the assembled truss plates and the assembled flange columns are prefabricated in the factory and are assembled through bolts on the construction site. In combination with modularization, factory production, standardization and assembling, the industrialized multi-story high-rise assembled steel structure system has the advantages that the factory production and the on-site rapid assembling are realized; and on the premise that the construction quality is guaranteed, the construction speed is improved, the construction period is shortened and the construction cost is decreased.

The invention relates to an assembled steel structure center support frame system and belongs to the technical field of structure engineering. The system comprises assembled truss plates, assembled uprights and center support members, wherein the assembled truss plates comprise lattice truss beams with steel angle web members, and floor plate, and are prefabricated in a factory; the assembled truss plates are spliced with beam column nodes of the assembled uprights by beam end sealing plates of the assembled truss plates at a construction site; the assembled uprights are spliced between layers by bolts on site to form a multilayer steel frame structure; based on the steel frame structure, the center support members serve as lateral force resisting members and are connected with the truss beams in the assembled truss plates and the bottoms or tops of the assembled uprights; the assembled truss plates, the assembled uprights and the center support members are prefabricated in the factory and assembled by the bolts at the construction site.

Provided is a novel modular assembled lower-layer thin-walled cold-formed steel floor module. The floor module is formed by connecting A, B, C, and D four kinds of sub-units. The four kinds of sub-modules use a truss girder and profiled steel sheet and foam cement composite floor system. A concave (called a wide beam) thin-walled cold-formed steel section or a thin-walled cold-formed steel section which can be spliced into a concave shape (called a narrow beam) in a pairwise manner are used in the upper boom and the lower boom of the truss girder. A C-shaped section is used in the web plate of the truss girder. A surface plate comprises foam cement, a reinforcing mesh, and a cold-bending steel plate from top to bottom in sequence. The wide beam, the narrow beam, and the surface plate are assembled together, so as to form A, B, C, and D four kinds of floor sub-units. Through expanding, combining, and splicing the four kinds of floor sub-units, modular assembling of floor systems in different dimensions is realized. The floor module system combines modulization, factorization, and assemblage, and realizes factory-like production and fast assembling on site. The floor module is a green and environmentally-friendly structural system.

The invention discloses a special-shaped steel column frame structure joint easy to restore after an earthquake. According to the special-shaped steel column frame structure joint easy to restore after the earthquake, a double-groove steel beam is connected with a special-shaped column through a beam-end sealing plate, so that a welding-line-free full-bolt connecting form is formed; a prestress steel cable is applied to a welding-line-free full-bolt joint, so that the prestress self-reset joint easy to restore after the earthquake is formed. By the adoption of a prestress self-reset joint form, self-reset of the joint after the earthquake is achieved, and restoring cost after the earthquake is greatly reduced; the shock resistance of the joint is improved, and thus the shock resistance of a frame structure system is improved; compared with a traditional steel-structural construction joint, the special-shaped steel column frame structure joint easy to restore after the earthquake has the advantages that the safety performance is high, environmental pollution is light, the number of safety accidents is small, and construction cost is low.

The invention discloses an industrial prefabricated solid-web steel structural frame system with columns penetrating beams, and belongs to the technical field of structural engineering. The structural frame system comprises prefabricated beam plates and the prefabricated upright columns which are assembled by bolts to form the structural frame system; prefabricated floors comprise section steel beams and floors, the section steel beams are connected with other section steel beams or upright columns by beam-end sealing plates and on-beam cover plates to form beam plate and steel frame structures, and the floors are placed on the beam plate and steel frame structures and are connected with the beam plate and steel frame structures, so that the prefabricated beam plates are formed; the prefabricated beam plates are spliced with beam-column joints of the prefabricated upright columns by beam-end sealing plates and on-beam cover plates of the prefabricated beam plates; the prefabricated upright columns penetrate the beam-column joints, each upright column with the certain length can penetrate 4-5 stories, and the upright columns are spliced at inflection points, which have low stress, of middle columns of the stories by bolts in a site, so that a multilayer beam plate and steel frame structure is formed; various members of the prefabricated beam plates and the prefabricated upright columns are prefabricated in a factory and are assembled by bolts in the construction site.

The invention discloses an industrial prefabricated eccentric bracing system with penetrating columns for a steel structural frame, and belongs to the technical field of structural engineering. The industrial prefabricated eccentric bracing system comprises prefabricated truss plates, prefabricated upright columns and eccentric bracing members; the prefabricated truss plates comprise floors and latticed truss beams with angle steel web members; the prefabricated truss plates are prefabricated in a factory and are spliced with beam-column joints of the prefabricated upright columns by beam-end sealing plates and on-beam cover plates of the prefabricated truss plates in a construction site; the prefabricated upright columns penetrate the beam-column joints, each upright column with the certain length can penetrate 4-5 stories, and the upright columns are spliced at inflection points, which have low stress, of middle columns of the stories by bolts in the site, so that a multilayer truss plate and steel frame structure is formed; the eccentric bracing members are connected to the bottoms or the tops of the truss beams of the prefabricated truss plates to be used as lateral-resistant members on the basis of the truss plate and steel frame structure; the prefabricated truss plates, the prefabricated upright columns and the eccentric bracing members are prefabricated in the factory and are assembled by bolts in the construction site.

The invention provides an industrialized assembly type special-shaped column steel structure frame-eccentric support system and belongs to the technical field of structural engineering. The industrialized assembly type special-shaped column steel structure frame-eccentric support system comprises assembly type truss plates, assembly type columns and central support members. Each assembly type truss plate comprises lattice truss beams and floor slabs and is prefabricated in a factory, and the assembly type truss plates and beam-column joints of the assembly type columns are spliced through beam-end seal plates in a construction site, and the assembly type columns are spliced among layers in the site through bolts to form a multiple-layer truss plate steel frame structure. Based on the truss plate steel frame structure, the central support members serve as lateral force resisting members and are connected with the truss beams in the assembly type truss plates and the bottoms or the tops of the assembly type columns. The assembly type truss plates, the assembly type columns and the central support members are prefabricated in the factory and are assembled in the construction site through bolts.

The invention discloses a special-shaped steel column-prestress central supporting frame easy to restore after an earthquake. The special-shaped steel column-prestress central supporting frame easy to restore after the earthquake is characterized in that a double-groove steel beam is connected with a special-shaped column through a beam-end sealing plate, so that a welding-line-free full-bolt connecting form is formed; a prestress steel cable is applied to a welding-line-free full-bolt joint, so that a prestress self-reset joint is formed; a self-reset column base and a prestress column base are used for optimizing the axial mechanical performance and the horizontal mechanical performance of the bottom of the column through a reinforcing plate, a bend-preventing steel plate is mainly used for dissipating energy of the earthquake, and a shear plate is used for preventing local deformation, caused by excessive shearing force, of the bottom of the column; the key component of the prestress column base is a prestress pull rod, the pull rod is used for providing precompression for the column so that the column can be tightly connected with the beam, as a result, approximate rigid connection can be achieved when the prestress column base bears small bending moment, and the self-reset capacity of the prestress column base after the earthquake is achieved; better lateral resistance of the structure is achieved through prestress central supporting.

A hollow irregular column multi-layer high-rise assembling steel structure system relates to the technical field of engineering and comprises assembling truss plates and assembling flange columns. Each assembling truss plate comprises a lattice truss beam with an angle steel web member, a column base node and a floor slab. The assembling truss plates are prefabricated in a factory and spliced with one another through beam end sealing plates or the column base nodes on a construction site to form frame structure beam plate layers. The frame structure beam plate layers are connected vertically through the assembling flange columns to form a multi-layer steel frame structure, and the assembling flange columns are arranged on the column base nodes of the assembling truss plates. The assembling truss plates and the assembling flange columns are all prefabricated in the factory and assembled through bolts on the construction site.