30results about How to "Increase out-of-plane stiffness" patented technology

The invention discloses a method for steel-box beam erection applied in self-anchored suspension bridge. Procedures comprise that (1) the support for steel-box beam is set on bank or in no-navigation area and steel-box beam is preassembled with dividing segments on the support for steel-box beam; (2) temporary piers for steel-box beam, which satisfy waterway grade, are set in the waterway suspended by the suspension bridge; (3)preassembled steel-box beam is pushed forwards by pushing or dragging method so that the steel-box beam moves to temporary piers for steel-box beam from the support for steel-box beam and the steel-box beam is supported by temporary piers; then the steel-box beam is preassembled in dividing segments and it is pushed or dragged continuously so that preassembled steel-box beam moves forwards and it passes through temporary piers for steel-box beam on waterway in turn to achieve the opposite bank. The invention is provided with simple construction and it can be applied in waterway with busy suspension and higher waterway grade.

The invention relates to the field of variable airplane structural design, in particular to a variable-curvature wing trailing edge. The variable-curvature wing trailing edge comprises a herringbone structure made of an elastic material, an upper skin, a lower skin, heating pieces, a wingtip and a flexible honeycomb, wherein the upper skin and the lower skin are both made of a shape memory alloy and fixedly arranged on the upper surface and the lower surface of the herringbone structure, the shape memory alloy of the upper skin is configured to be lengthened when the heating temperature is higher than the preset temperature and recover and keep the original shape when the heating temperature is lower than the preset temperature, and the shape memory alloy of the lower skin is configured tobe shortened when the heating temperature is higher than the preset temperature and recover and keep the original shape when the heating temperature is lower than the preset temperature; the heatingpieces are arranged on the upper skin and the lower skin; and the position among the skins and the herringbone structure is filled with the flexible honeycomb. By the adoption of the variable-curvature wing trailing edge, through differential motion deformation of the upper skin and the lower skin, the wing trailing edge is driven to deflect, the out-of-plane stiffness of a whole wing trailing edge structure is greatly improved, and a variable airplane structure bearing requirement is met.

The invention discloses an assembled corrugated steel plate shear wall, which comprises one or a plurality of basic assembling units and an edge framework, wherein the basic assembling units are spliced through high-strength screw bolts and are connected with the edge framework; and each basic assembling unit is formed by transverse connecting elements, longitudinal connecting elements and corrugated web plates through welding. The assembled corrugated steel plate shear wall provided by the invention has the advantages that each basic assembling unit is formed by the corrugated web plates, so that the shear buckling load of a steel plate wall can be greatly improved; the use comfort of the steel plate shear wall structure is improved; the outer rigidity of the basic assembling unit surface of the assembled corrugated steel plate shear wall is great; and the transportation is convenient and fast. The lateral force resisting structure system of the assembled corrugated steel plate shear wall adopts field splicing by high-strength screw blots; the construction is convenient and fast; the quality is easy to guarantee; the assembled corrugated steel plate shear wall conforms to the industrial development trend of a building; and wide market application prospects are realized.

The invention discloses a steel pipe stiffening web steel-concrete composite box girder. The steel pipe stiffened web steel-concrete composite box girder comprises a concrete top plate, steel pipe stiffening webs, a steel bottom plate, cross-bracing structures and an upper flange plate, the steel bottom plate is welded to the lower edge of the steel pipe stiffening webs on both sides, the upper edge of the steel pipe stiffening webs is welded to the upper flange plate, and the steel pipe stiffening webs, the steel bottom plate and the upper flange plate are welded into a groove-type steel structure; the concrete top plate is connected to the top part of the upper flange plate through a connecting part, the steel pipe stiffening webs, the steel bottom plate, the upper flange plate and the concrete top plate form a box girder structure, and a plurality of cross-bracing structures are arranged in a support point of the box girder and the middle of the box girder. According to the steel pipe stiffening web steel-concrete composite box girder, the longitudinal stiffness of steel webs and the upper flange plate can be reduced, the prestressing efficiency is improved, meanwhile the deformation coordination ability of the concrete top plate and the steel structure is coordinated, secondary internal force generated by shringkage and creep of concrete and temperature are reduced.

The invention discloses an intersecting reinforcement profiled steel plate shear wall with broadside slotting. The profiled steel plate shear wall comprises an embedded steel plate which is arranged in a margin plate, a lengthways end plate or a crosswise end plate is arranged between the embedded steel plate and the margin frame, a gap is arranged between a margin frame column and the lengthways end plate; the embedded steel plate adopts corrugated profiled steel plate which sets the corrugation direction as a vertical direction, and two sides of the embedded steel plate are respectively connected with two profiled steel reinforcing ribs, wherein one of the two profiled steel reinforcing ribs is arranged in a direction which forms an included angle of 45 degrees with a horizontal line, and the two profiled steel reinforcing ribs are perpendicular to each other. The embedded steel plate has large vertical stiffness; the gap between the end plate and the margin frame column can not only eliminate a probable additional bending moment generated by the embedded steel plate on the margin frame column, but can also release dimension error of the broadside of the profiled steel plate; the profiled steel reinforcing ribs which are in cross arrangement restricts the relative position of the corrugated profiled steel plate in a corrugation plane; meanwhile, the profiled steel plate shear wall can be designed into a fabricated lateral force resisting component, thus realizing a sharp improvement in field assembly degree, and reducing workload in field construction.

The invention relates to the technical field of steel structure residences and public buildings, in particular to a steel-concrete combined special-shaped lattice column. The combined special-shaped lattice column is composed of a concrete-filled square steel tubular column, channel steel and a lacing bar, two types of structures exist in total and are a type I and a type II, each type has three cross-sectional forms, namely an L shape, a T shape and a cross shape, and a bolt assembly type K-shaped lacing bar connection mode is adopted. The column overcomes the problems that in the prior art that structural arrangement is not flexible, component factory prefabrication is difficult, and a component standardization degree is not high, most of adopted components can be prefabricated in a factory, field assembly is fast, construction is convenient, the problem of a convex column is solved, filling with a prefabricated autoclaved building block is conducted, and the intelligent combined special-shaped lattice column integrating a structure, heat preservation and sound insulation is formed.

The invention relates to a novel wave-shaped ventral sheet steel arch structure, belonging to the technical field of structure engineering. The steel arch structure is composed of an upper flange slab, a lower flange slab and a wave-shaped arch ventral sheet which are connected by welding; the upper flange slab and the lower flange slab are hot rolled steels; and the wave-shaped arch ventral sheet is rolled by cool bending equipment from a regular thin and plane steel sheet. The wave-shaped arch ventral sheet is a uniform wave-shaped arch ventral sheet rolled by cool bending forming equipment from a regular strip-shaped steel sheet, then waves of different ranges and depths are rolled by the cool bending forming equipment, the ventral sheet automatically bends to form an arch, and the wave-shaped arch ventral sheet of different ratios of rise to span can be formed by adjusting the depth ratio of the upper wave range and the lower wave range of the ventral sheet. The wave-shaped arch ventral sheet steel arch structure provided by the invention is convenient in forming processing of the arch ventral sheet and saves material, has high partial bending strength of the wave-shaped ventral sheet and high surface external rigidity and is an excellent arch steel structure.

The invention relates to a shear wall composed of corrugated steel sheets and concrete-filled steel tubular members and belongs to the technical field of structural engineering. The shear wall comprises the rectangular concrete-filled steel tubular members or concrete-filled steel tubular members provided with split bolts, the corrugated steel sheets and C-shaped section cold forming sectional steel vertical edge members. The rectangular concrete-filled steel tubular members are formed in a cold roll forming mode or a welding mode. The multiple concrete-filled steel tubular members or the multiple concrete-filled steel tubular members provided with the split bolts are connected with the corrugated steel sheets in sequence in a welding mode, so that a main pressure-bearing framework of the shear wall is formed. According to the shear wall formed by directly welding the concrete-filled steel tubular members and the corrugated steel sheets, section plates can be directly connected during upper and lower shear wall splicing, the shortcoming that inner partition plates of a continuous multi-cavity shear wall fail to be connected directly during splicing, and consequentially, axial force transmission is interrupted is overcome, and the material utilization efficiency is greatly improved; and the shear wall has the advantages of high bearing efficiency, flexible plane arrangement and the like.

The invention discloses a fabricated shear wall with a steel plate stud combined type diagonal bracing and a construction method. The fabricated shear wall comprises a first shear wall unit and a second shear wall unit, wherein the first shear wall unit and the second shear wall unit are stacked up and down, and the first shear wall unit and the second shear wall unit are connected and fixed witha connecting mechanism; the first shear wall unit and the second shear wall unit are provided with shear wall structures; a shear wall frame is formed by enclosing a left concealed column, an upper concealed beam, a right concealed column and a lower concealed frame; a first facade steel plate and a second facade steel plate are fixed to the front side and the rear side of the shear wall frame; diagonal bracing members are fixed in the shear wall frame; and each diagonal bracing member comprises two steel plates, the two steel plates cross each other to form an X-shape structure, studs are arranged on the steel plates, and concrete is poured in the shear wall units. According to the fabricated shear wall with the steel plate stud combined type diagonal bracing and the construction method,the in-plane lateral stiffness, shear bearing capacity, bending bearing capacity, ductility and energy consumption of the shear wall are improved through the design of the diagonal bracing members, the shear wall units can be pre-installed in advance, and on-site construction is facilitated.

Belonging to the field of structural engineering, the invention relates to a corrugated web box-section steel-concrete combined arch. The combined arch is characterized in that it is formed by direct butt welding of two corrugated web H-shaped section steel arches through an upper flat flange plate and a lower flat flange plate along the arch axis direction; and concrete is poured into the box-section to form a steel tube concrete combined arch structure. The corrugated web H-shaped section steel arches have a biaxial symmetric H-shaped section or uniaxial symmetric H-shaped section, and the corrugated web is a trapezoidal zigzag steel plate or sinusoidal wave steel plate. The combined arch provided by the invention is a large span space structure member with superior overall mechanical performance, and has the characteristics of convenient manufacturing, clear labor division of section stress. The box-section has strong torsional stiffness and arch axial out-of-plane flexural rigidity. The restraint function provided by the corrugated web improves the compressive strength and ductility of core concrete, and the supporting effect provided by the core concrete strengthens the local stability of the corrugated web and the flange plates.

The invention relates to a corrugated structure-based sliding type flexible composite material skin. The corrugated structure-based sliding type flexible composite material skin is composed of a composite material corrugated plate, composite material thin plates and an elastomer layer. The connection relations of the composite material corrugated plate, the composite material thin plates and the elastomer layer are as follows: the composite material thin plates are bonded on the horizontal cementing surfaces of the composite material corrugated plate; the left side of each composite material thin plate is cemented on a corresponding horizontal cementing surface at a wave crest, and is in lap joint with one composite material thin plate at an adjacent wave crest at the right side; and the elastomer layer is tightly attached to the composite material thin plates. The characteristic that the composite corrugated plate has large rigidity in a corrugated direction and the characteristic that the composite thin plates have large out-of-plane rigidity are combined, and therefore, a large deformation function can be achieved, out-of-plane aerodynamic loads can be resisted. The corrugated structure-based sliding type flexible composite material skin has the advantages of simple structure and low weight. The flexible skin scheme for a morphing wing is practical and feasible.

The invention provides an assembled double steel plate combined shear wall structure with rib plates. The four rib plates are arranged in the periphery, two steel wall panels are distributed on both sides, and the four rib plates are welded to the two steel wall panels to form a box-shaped shear wall housing; high-strength bolt holes or split bolt holes a are uniformly formed in the rib plates inthe periphery of the shear wall housing; split bolt holes b are neatly formed in the upper portions of the two steel wall panels; studs are neatly and uniformly welded to the interiors of the two steel wall panels; a concrete slab is arranged in the shear wall housing. According to the structure, the crack width of concrete can be effectively controlled, and the concrete can be prevented from being crushed prematurely, so that the deformation capability of the filled concrete is improved; the concrete slab does not directly bear a horizontal load but only serves as the lateral restraint of thesteel wall panels to prevent out-of-plane buckling of the steel wall panels, and cracking of the concrete slab can be reduced; in addition, during practical application, the steel ribs in the shear wall structure not only are the plates for construction assembly but also can improve the rigidity of the outer surface of a wall.

The invention belongs to the technical field of constructional engineering seismic energy dissipation, and provides a corrugated type replaceable energy dissipation device with the controllable performance. The device is mainly composed of a corrugated steel plate and two connecting plates. The corrugated steel plate is of an integrated structure, and the two ends of the corrugated steel plate arewelded to the connecting plates respectively, so that an I-shaped structure is formed. Out-plane buckling can be effectively avoided due to corrugations of the corrugated steel plate, the out-plane rigidity is improved, then, in-plane bearing capacity and rigidity degeneration are remarkably lowered, a hysteresis curve is full, and the energy dissipation capacity is improved. By changing the included angle between the connecting plates and the directions of corrugated lines, the bearing capacity and the rigidity of the corrugated steel plate can be adjusted, steel plate alignment is enhancedor weakened, and then the actual requirements of different projects for dampers can be precisely matched. Compared with the prior art, the manufacturing technology is simple, the steel plate performance is stable, installation is convenient, the device has the advantages that the energy dissipation capacity is high, the bearing capacity and rigidity are controllable, after an earthquake, the device can be replaced, and therefore the using function of the structure can be rapidly recovered, and the device can be used for improving the structure post-earthquake function restorability.

The invention relates to a fabricated sash type frame type light steel frame-punching thin steel plate-concretecomposite wall. A concrete-filled steel tube frame column, a concrete-filled steel tube frame beam and a concrete-filled steel tube frame rib together form a light steel frame sash of a wall board, and form a compositewall steel skeleton with a punching thin steel plate to improve integrity of the wall board. A framework is erected and the concrete is poured; after maintenance, the fabricated sash type frame type light steel frame-punching thin steel plate-concretecomposite wallis formed, and only connection bolts are needed for assembling the composite wall onto an external structure. The fabricated composite wall has good bend-resisting and shear-resisting capacities, out-of-plane stiffness, and good anti-seismic performance; and meanwhile, the wall board is manufactured in a factory, and is assembled on-site, and therefore the common quality problem caused by site construction is effectively solved; construction efficiency of a project is greatly improved; and work amount of the project is lowered. The fabricated composite wall is suitable for being widely popularized and used in the structure of low and multi-storey rural house structures in villages and towns, and plays an important role in promoting improvement of the traditional rural house structure technology.

The invention discloses a corrugated steel plate recycled concrete anti-seismic sound-insulation shear wall. The shear wall comprises an anti-seismic energy consumption structure, a damping sound-insulation structure and a bearing structure, wherein the anti-seismic energy consumption structure comprises a plurality of strip-shaped steel plates, edge beams, edge columns and inclined supports; thedamping sound-insulation structure comprises steel plates, elastic cement gum, corrugated steel plates and steel partition plates; the bearing structure comprises recycled concrete, corrugated steel plates, studs and the like; and the bearing structure, the damping sound-insulation structure and the anti-seismic energy consumption structure are sequentially arranged from inside to outside to formthe shear wall. The shear wall can overcome the defects of an existing steel plate shear wall and has the advantages of being resistant to seismic, insulating sound, reducing construction waste and the like.

The invention relates to a modularized fabricated double-steel-plate shear wall, and belongs to the field of structural engineering. The double-steel-plate shear wall is formed by welding two edge columns and an integral steel plate shear wall unit. Based on the concept of improving the elastic shear buckling load and the shear bearing capacity of the shear wall, inner stiffening units are arranged to conduct buckling constraint on outer side steel plates, and the bearing capacity and out-of-plane rigidity of the double-steel-plate shear wall are improved. The machining of the inner stiffening units and the assembly of the double-steel-plate shear wall can both adopt mature processes, and the machining difficulty is greatly reduced compared with that of a traditional double-steel-plate shear wall.

The invention provides a hanging basket with a self-locking wheel track type running gear; the hanging basket comprises running parts matched in number with and located one by one with hooks of the hanging basket; the running part comprises a running structure, a track structure and a defense structure; the running structure comprise a power source and a roll-boat; the track structure comprises a track single body; the track single body comprises a fixed track and a sawtooth plate; the defense structure is used for preventing the whole roll-boat to go backward. The technical effects are that the whole machine is concise in structure and low in cost; modularization design can be realized by several large parts, so installation, maintenance and replacement are convenient; the running structure, the track structure and the defense structure are combined so as to allow the hanging basket to walk, thus resisting sliding force of the hanging basket in an automatic running process, and preventing the backward effect of the hanging basket in the running or adjusting process; the hanging basket is easy to control and good in stability; the invention also provides a hanging basket running method using said running gear; the method is easy to control and strong in practical values.

The invention relates to a variable-cross-section corrugated steel plate-concrete combined plate structure. The combined plate consists of a variable-cross-section corrugated steel plate and lining concrete, wherein the lining concrete comprises three portions including a full-cross-section segment I, a transition-cross-section segment II and a minimum-cross-section segment III which are sequentially arranged along the longitudinal direction of the corrugated steel plate from a fulcrum to bear the shear force, which becomes small from large, of the corrugated plate in the longitudinal direction. The full-cross-section segment ensures that the top surface and the bottom surface of the corrugated steel plate are superposed to the top surface and the bottom surface of the concrete; the transition-cross-section segment II smoothly connects the full-cross-section segment I with the minimum-cross-section segment III; by the minimum-cross-section segment III, the buckling strength of the cross section of the combined plate is improved, and finally, the combined plate structure with light weight, strong shear resistance and good buckling stability is obtained.