56results about How to "The way of power transmission is clear" patented technology

The invention relates to a connecting method of a steel beam and an existing reinforced concrete column, which can be used for reinforced modification of an existing reinforced concrete structure, and belongs to the technical field of structural engineering. The method comprises the steps of: scabbling, planting bars and binding reinforced mesh pieces on the surface around with a node connection domain of the original reinforced concrete column; processing two pieces of channel steel and welding a stud connection piece inside; extending an extending bracket and external reinforcing plate on the channel steel connected to the steel beam; buckling the two pieces of channel steel and wrapping the original reinforced concrete column; welding in an abut manner; pouring node area concrete; and finally connecting the steel beam. The method overcomes the deficiencies of the conventional connection method, is simple in structure, quick and convenient to construct, good in stress performance of the connecting node, reliable in force transfer, and can efficiently prevent a node core area from cracking and being exposed. The core area concrete is wrapped by a steel plate so that the concrete is strongly constrained, and the quake-proof ductility of the node is good. The method has high practicality and wide application prospect.

The invention discloses a floor-type slant-legged steel truss bracket of a lower transverse beam of a large-span cable tower. The steel truss bracket is mounted on bottom bearing platforms of tower columns on two sides of the lower transverse beam of the cable tower. The steel truss bracket is characterized by comprising a steel truss, slant-legged brackets in bilateral symmetry arrangement, and an anti-introversion lateral bracing connected with the slant-legged brackets on the two sides, wherein the bottom of each slant-legged bracket is propped against the bottom bearing platform of the tower column on the corresponding side; the steel truss is supported at the tops of the slant-legged brackets. The feasible floor-type slant-legged steel truss bracket of the lower transverse beam of the large-span cable tower, provided by the invention, aims to solve the problems existing in a conventional construction technology of a lower transverse beam. The bracket directly utilizes conventional tower columns and conventional bearing platforms as a base, and omits the investment of facilities, such as temporary buttresses in the lower transverse beam span, and the bracket has the advantages of being large in bearing capacity, small in overall deformation, stable in structure, convenient to mount and demount, and sufficient in performance application of rods.

The invention discloses a method for supporting a factory-building roofing system at a huge pumping column space, which relates to the technical field of construction structure design. According to normal column space (6), an on-beam steel column (2) is added in corresponding position on the top surface of a large box-shaped crane beam (1) at the huge pumping column space (7); the top of the on-beam steel column (2) is articulated with a steel roof truss (3), and the foot of the on-beam steel column (2) is articulated with the large box-shaped crane beam (1). The method effectively solves the problem of how to support a factory-building roofing system at a huge pumping column space and causes the arrangement of the roofs to be more unified and the whole rigidity of the factory buildings to be evener, thereby achieving good technical effect and economic benefits. The method is mainly used for the design of the supporting of a factory-building roofing system at a huge pumping column space.

The invention relates to the field of modular buildings, in particular to a modular assembly frame which comprises a plurality of module units, first connecting pieces and second connecting pieces. Each module unit comprises a first bearing component and a second bearing component; each first bearing component comprises a plurality of module columns; each second bearing component comprises a module beam, and each module beam comprises a web plate and wing parts arranged on two sides of the web plate; and the end parts of the plurality of module columns are connected into a three-dimensional frame through module beams. When adjacent module units are spliced, the module columns of the adjacent module units are aligned, and in the transverse direction, the webs of the adjacent module units are attached and fixedly connected through the first connecting pieces; and in the longitudinal direction, the wing parts of the adjacent module units are attached and fixedly connected through the second connecting pieces. Vertical energy dissipation devices are arranged on the side vertical faces of the module units, adjacent module columns form combined columns, and the combined columns are provided with outer wrapping energy dissipation pieces. The scheme has the beneficial effects of being good in integrity, high in bearing capacity, good in anti-seismic property and convenient to disassemble and assemble.

The invention belongs to the field of steel structures, and particularly relates to a connecting joint non-orthogonal to a cross column and a construction method. The connecting joint non-orthogonal to the cross column comprises the cross column and steel brackets, wherein the steel brackets are welded to a peripheral surface of the cross column in an orthogonal mode; an annular connecting plate is fixedly welded between the adjacent steel brackets; and a horizontal component is fixedly welded on the annular connecting plate. Problems that connecting plates and stiffening ribs which correspond to a non-orthogonal component in a cross column are welded difficultly, weld joints are overlapped, rebars penetrate in steel plates, field construction positioning precision is difficult to control and the like are solved, after certain modification, various stress requirements can be met, a large amount of costs can be saved, and manufacturing and mounting efficiency is improved.

The invention provides a large-span grid structure multidirectional bearing and anti-seismic spherical hinge support joint, comprising an upper support, a lower support and a flexible steel bar group.An upper support base is located at the lower end of the upper support, and a lower support supporting seat is located at the upper end of the lower support. The spherical convex face of the upper support base and the spherical concave face of the lower support supporting seat are connected in an embedded fit mode. The upper support and the lower support are connected through the flexible steel bar group. Micro vertical, horizontal and rotary displacements can be allowed, the stability of the structure out of the plane is limited, and the load effects of bearing vertical pressure, stirring force, horizontal force, bending moment, earthquake force, temperature stress and the like are achieved. The structure is used for absorbing and consuming loads caused by earthquakes, the form of support nodes is simplified, good anti-seismic and damping effects on the upper grid structure are achieved, the influence of complex loads on deformation of the lower structure is reduced, and the overallanti-seismic performance of the structure is improved. The manufacturing is simple, the development of an assembly type space structure is promoted, and engineering popularization and application arefacilitated.

The invention discloses a temperature stress control expansion joint and belongs to a stress control device, and the temperature stress control expansion joint mainly comprises an inner part, a middle part and an outer part, wherein the inner layer is provided with a center guide pole, and the outer layer is provided with a left sleeve and a right sleeve, the middle layer comprises disk springs (4, 5 and 6) ad a rubber spring (10). The left sleeve is in contact and connection with the right sleeve. The path transferred by the expansion joint is as follows: the disk spring (4 and 6) generate deformation for realizing energy release under the action of a temperature load when a structure rod member bears an axial tensile stress; the disk spring (5) generates deformation for realizing energyrelease under the action of the temperature load when the structure rod member bears an axial pressure stress; and the rubber spring (10) can bear a relatively smaller initial pressure stress and canbear a sudden impact load. The temperature stress control expansion joint disclosed by the invention has a wide bearing force amplitude and can bear the tension stress and the pressure stress, is accurate in a force-transferring path, can generate corresponding deformation according to demands for releasing the temperature stress, and has good stability and simple and rapid installation process, and can be connected with circular steel pipes with different diameters.

The invention discloses a post-earthquake function recoverable coupling beam with a bending shear sub-control energy consumption mechanism. The post-earthquake function recoverable coupling beam comprises a first elastic coupling beam, a second elastic coupling beam, a connecting bolt and an anchoring part, wherein one end of the first elastic coupling beam and one end of the second elastic coupling beam are connected with an inserting convex block through a connecting inserting groove in an inserting mode and are connected through the connecting bolt, the contact surface of the connecting inserting groove and the inserting convex block is a friction surface, the other end of the first elastic coupling beam and the other end of the second elastic coupling beam are anchored on a wall limb of a shear wall through a shape memory alloy lengthened screw rod and the anchoring part respectively, an n-shaped anti-shearing inserting key is arranged on the wall limb of the shear wall, and the shapes of the other end surface of the first elastic coupling beam and the other end surface of the second elastic coupling beam are n-shaped inserting surfaces matched with the n-shaped anti-shearing inserting key. During an earthquake, the first elastic coupling beam and the second elastic coupling beam shear up and down and move in a staggered mode to drive the friction surface to consume energy, the end parts of the coupling beams rotate with the wall limb, the shape memory alloy lengthened screw rod is driven to generate plastic deformation to participate in energy consumption, and the use function can be quickly recovered after the earthquake.

The invention discloses a connected node of a concrete filled steel tube combination column and reinforced concrete beams. The concrete filled steel tube combination column and the reinforced concrete beams are intersected to the connected node. Open holes are formed in steel tubes, corresponding to the intersected positions of the reinforced concrete beams, of the concrete filled steel tube combination column. The upper end and the lower end of each reinforced concrete beam and the upper end and the lower end of the concrete filled steel tube combination column are respectively provided with two open holes, namely two upper end open holes and two lower end open holes. Longitudinal ribs inside reinforced concrete beams penetrate through the open holes in the tube wall and are anchored on core concrete inside the steel tubes. The positions above the upper end open holes, the positions below the upper end open holes, the positions above the lower end open holes and the positions below the lower end open holes are respectively provided with an annular reinforcing plate. Vertical reinforcing plates are arranged on the portions, between the open holes which have the same height and small gaps, of the tube wall. The concreted node of the concrete filled steel tube combination column and the reinforced concrete beams is used under the condition that multiple beams are slantly intersected to the node in a small-angle mode, and holes are closely formed in the tube wall. When the heights of the cross sections of the multiple beams are different, the beam longitudinal ribs can also penetrate through the large open holes conveniently. According to the connected node of the concrete filled steel tube combination column and the reinforced concrete beams, stress concentration between the open holes of the tube wall can be conveniently controlled, meanwhile, the hoop effect of the tube wall with the open holes is reinforced, and the anti-seismic performance of the node can be ensured.

The invention belongs to the field of box-type transformer substation foundations, and discloses an assembly type box transformer substation foundation and a field construction method. The assembly type box transformer substation foundation comprises bottom plates, stand column bases, stand columns, connecting steel plates, connecting bolts and the like; and due to the design of six modular bottomplates, when box-type transformer substation with different sizes need to be adapted, only the modular bottom plates need to be added or expanded in the form of removal. When the box-type transformersubstation foundation needs to be shifted, only the foundation soil needs to be dug out, the welding part of the box-type transformer substation and the box-type transformer substation foundation iscut off, then the box-type transformer substation foundation is integrally disassembled and can be put into the next engineering for use. The method has the advantages of being reasonable in structure, clear in force transmission path, simple to assemble, short in construction period, low in manufacturing cost, capable of being repeatedly used, suitable for box-type transformer substations with various specifications, small in environmental disturbance and the like.

The invention relates to a toothed fastener node. The toothed fastener node comprises two rod pieces, two semicircular pipe toothed fasteners and bolts, wherein the two rod pieces are axially and fixedly connected through the toothed fasteners which can be mutually fastened and the bolts, and the force transfer means is clear; the fasteners can be prefabricated in a factory and the node is convenient to install on the site; the installed node has certain rigidity and the safety under a normal use state can be guaranteed; the node is convenient to disassemble, the disassembled components can be repetitively used, and the node is economic and reasonable; the form of the node is simple and the attractiveness of the entire structure is not influenced.

The invention relates to a folding-line-shaped pile foundation structure and a foundation acting-force computing method of the folding-line-shaped pile foundation structure as well as a construction method of the folding-line-shaped pile foundation structure. The folding-line-shaped pile foundation structure comprises an inclined upper segment and a vertical lower segment, wherein the inclined upper segment is used for connecting an upper structure, the vertical lower segment is used for being buried underground, the upper end surface of the vertical lower segment is connected with the lower end surface of the inclined upper segment, a connecting line between the center of the upper end surface of the inclined upper segment and the center of the upper end surface of the vertical lower segment is a folding line, the intersection point of the projection extending line, on the upper end surface of the vertical lower segment, of the folding line and the connecting part of the folding line and the upper end surface of the vertical lower segment is a folding point, and the folding point is positioned at the lower part of the anchoring end of a connecting piece between the inclined upper segment and the upper structure and is positioned above the computed buried-depth ground of the vertical lower segment. According to the folding-line-shaped pile foundation structure, a horizontal force transmitted by the upper structure is counteracted by utilizing the folding-line-shaped structure of a pile foundation, so that the horizontal bearing force of the pile foundation is met, a method for increasing the pile diameter and the pile length is avoided, the usage amount of foundation steel bars is also decreased, and therefore the folding-line-shaped pile foundation structure is especially applicable to the pile foundation which has certain computed exposed height and a larger horizontal foundation acting force.

The invention relates to a fabricated houses based on cold-formed thin-walled steel. The fabricated house based on the cold-formed thin-walled steel is characterized by comprising a housing frame, a floor structure and a wall structure. A truss girder is connected to the wall frame structure by self-tapping screws and angle steel. The stress concentration of joints is relieved, and the net sectional area of a plate is not reduced, thus the bearing capacity of the joints can not be reduced. The bolt opening of the self-tapping screws caused by repeated squeeze of the hole wall under the action of vertical load is avoided. To some extent, the stress concentration on the truss girder and the wall frame structure caused by opening threaded hole can be avoided. The defects of the joint connection between the existing cold-formed thin-walled steel truss girder and the wall frame are overcome. By the adaptation of the angle steel, force transmission path of the joints are clear, the anti-seismic performance is superior, and the construction operation is simple and easy. The fabricated houses based on cold-formed thin-walled steel can be widely used for the connection of various rod sections of cold-formed thin-walled steel, especially for structure system of external walls with plug-in enclosures.

The invention discloses an energy dissipater for a wall vertical connecting seam. The energy dissipater comprises two lug plates and two actuating plates, wherein the lug plates and the actuating plates are horizontally arranged at the vertical connecting seam of two adjacent walls, the two lug plates are vertically arranged between the two actuating plates in parallel, one ends of the lug platesare fixedly connected with one of the walls, the other ends of the lug plates are connected with the middles of the actuating plates through fulcrum bolts correspondingly, one ends of the actuating plates are connected with the middles of the lug plates through energy consumption bolts correspondingly, and the other ends of the actuating plates are fixedly connected with the other one of the wallsthrough connecting bolts. According to the energy dissipater, the lug plates and the actuating plates are fixedly connected together through the energy dissipation bolts and the fulcrum bolts, effective transmission of horizontal force in the wall vertical connecting seam is achieved through the fulcrum bolts, meanwhile, the fulcrum bolts serve as rotation centers, the energy consumption bolts are bent and sheared to deform through rotation, effective transmission of vertical shearing force in the wall vertical connecting seam is achieved, force transmission ways are clear, an energy consumption principle is clear, and the anti-seismic effect is good.

The invention belongs to the field of civil engineering and seismic resistance, and provides a buffer type pulling cable seismic reduction support free of additional vertical force. The buffer type pulling cable seismic reduction support comprises a seismic reduction support, a buffer type anchor device, pulling cables and guide blocks. The seismic reduction support comprises an upper support plate and a lower support plate. The pulling cables are additionally arranged on the side face of the seismic reduction support, are directly connected with the upper support plate in a penetrating mannerand are connected with the lower support plate through the buffer type anchor device. The connection anchor points of the buffer type anchor device and the pulling cables should be close to the uppersupport plate. By means of the buffer type pulling cable seismic reduction support, under the effect of an earthquake, the support can be allowed to deform largely, and the structural earthquake internal force can be reduced; by arranging the pulling cables, the support is controlled to conduct horizontal sliding displacement, the support displacement can be reasonable and controllable, and bridge falling and unfavorable collision of superstructures of bridges are prevented; and meanwhile it is avoided that vertical component force is generated during pulling cable limiting. The buffer type anchor device is provided with soft steel buffer energy consumption components, soft steel is allowed to generate limited elastic-plastic deformation, impact force generated during pulling cable limiting is reduced, and the structural internal force response is reduced.

The invention provides a node area column wall thickening and stiffening beam-column joints comprising an upper end steel pipe column, a lower end steel pipe column, a node area column wall thickening steel pipe column, a left end H steel girder and a right end H steel girder and a lateral connecting board; the upper end steel pipe column and the lower end steel pipe column are connected with the node area column wall thickening steel pipe column in a welding mode. According to the invention, the installation of node area column wall stiffening ribs will increase the rigidity of the node area column wall and be good for the force transmission in the node area and increase the carrying capacity and the earthquake-proof performance; the node area column wall thickening and stiffening beam-column joints have simple construction and are convenient to process; the force transmission approach is clear and the development of steel structure dwelling house industrialization is promoted.