170results about How to "Reduce earthquake action" patented technology

A truss-type corrugated steel web composite beam with an open bottom chord belongs to a bridge support member. The bottom chord opened and truss-type corrugated steel web composite beam comprises an upper wing edge concrete slab, a corrugated steel web and a bottom chord opened truss-type rectanglar steel tube concrete member. Compared with steel truss-type web composite corss section, the invention adopts the corrugated steel web with rather high shear strength to replace a steel web member, so as to guarantee quite high shear bearing capacity. The opened truss-type bottom chord is composed of two parallel-arranged rectanglar steel tubes arranged in parallel and internally cast concrete, as well as horizontal braces and batter braces between the rectanglar steel tubes. Moreover, the bottom chord adopts the steel tube concrete member to overcome the problem of rather high work volume that, in traditional composite cross section of corrugated steel web box beams and steel truss-type webs, such execution measures as scaffolding, formwork-support, concrete casting and etc. should be taken for lower wing edge concrete slabs. Meanwhie, the invention can effectively improve structure crack resistance, avoid crackage exposure and etc, and considerably increase structure durability. The bottom chord is a brace-connected open-type structure with advantages of simple structure and fast, smooth and convenient execution.

The invention provides a novel three-dimensional seismic isolation device which comprises a horizontal seismic isolation component, a transition steel structural platform and a vertical seismic isolation component. The horizontal seismic isolation component is fixedly connected with the vertical seismic isolation component by the transition steel structural platform; and the vertical seismic isolation component comprises an upper sleeve, a lower sleeve, a lower bottom plate, a belleville spring, a middle guide rod and viscous damping fluid. The novel three-dimensional seismic isolation device is simple and convenient to manufacture and is convenient to construct, install and maintain; horizontal damping and vertical damping are decoupled mutually and are not involved mutually. Due to adoption of the belleville steel plate spring, the novel three-dimensional seismic isolation device has low vertical stiffness when vertically moving, so that the vertical period of an upper structure is prolonged and the earthquake action is reduced; and meanwhile, a good viscous hole is formed by a gap between the belleville spring and the lower sleeve for the viscous damping fluid in the lower sleeve and a butterfly steel plate takes an effect of a piston in a viscous damper, so that the vertical earthquake action is further reduced by energy dissipation and safety of the upper structure is ensured.

The invention relates to a bottom double composite section steel shear wall with a reinforced concrete frame and an inside-hidden steel plate as well as a manufacturing method. The shear wall comprises a steel reinforced concrete composite frame column, a mild steel energy-consuming steel plate and a shear wall steel plate, which is a double composite column comprising the composite of the externally-adhered mild steel energy-consuming steel plate and a concrete filled steel tube column and the composite of the concrete filled steel tube and a reinforced concrete column and is a multiple combination body comprising the combination of a reinforcing bar and concrete, the combination of a steel plate and the concrete and the combination of a steel reinforced concrete frame column and a steel plate shear wall. Compared with a conventional shear wall, the shear wall provided by the invention has the advantages of high initial stiffness, high bearing capacity, slow bearing capacity and stiffness attenuation, good whole anti-seismic energy-consuming performance and relatively stable later-stage anti-seismic performance; the bottom shear-slip damage is little; and after a mild steel casing pipe is added, the outer mild steel casing pipe is firstly surrendered so as to consume the energy in the structure input by earthquake and can give play to the effects of resistance and ductility till being destroyed, therefore, the premature damage and destroy of the high-strength steel plate can be prevented and delayed.

The invention relates to a concrete-filled steel tube combined shear wall and a construction process thereof. The shear wall comprises steel tubes which are distributed uniformly along the section of the shear wall, concrete filled into the steel tubes, concrete poured outside the steel tubes, square stirrups arranged outside the steel tubes, and vertically-distributed steel bars and horizontally-distributed steel bars which are arranged on front and rear sides of the steel tubes, tie steel bars which are tied between the steel tubes and the vertically-distributed steel bars and between the steel tubes and the horizontally-distributed steel bars, and longitudinal steel bars which are arranged at the positions of restraint members on edges of two sides of the steel bars. According to the concrete-filled steel tube combined shear wall, the steel tubes are embedded into the ordinary reinforced concrete shear wall, and the bearing capacity of the concrete is improved under the restraint action of the steel tubes, so that the sectional dimensions of the members are reduced, the dead weight of a structure is reduced, a seismic effect is reduced, and more usable areas are provided for buildings under the condition of the same design axial force; and anti-seismic properties of the flexural capacity, shear capacity, damage ductility and the like of the shear force are improved effectively by utilizing the high bearing capacity and high ductility of the concrete-filled steel tubes.

The invention relates to a steel tube concrete frame inbuilt steel plate shear wall with soft steel sleeves at the bottom and a producing method of the steel tube concrete frame inbuilt steel plate shear wall. The steel tube concrete frame inbuilt steel plate shear wall is composed of a steel tube concrete frame column, a soft steel sleeve and a shear wall steel plate. The steel tube concrete frame inbuilt steel plate shear wall with the soft steel sleeves at the bottom, disclosed by the invention, is a multi-combination body of a combination of reinforcing steel bars and concrete, a combination of the steel plates and concrete as well as a combination of the steel tube concrete frame column and the steel plate shear wall. The steel tube concrete frame inbuilt steel plate shear wall with the soft steel sleeves at the bottom, disclosed by the invention, has greater initial rigidity, higher bearing capability, slower attenuation of the bearing force and the rigidity as well as better integral quake-proof energy consumption performance than those of the traditional shear walls and has relatively steady earthquake resistant capability in a later stage as well as relatively light shear sliding damage at the bottom. After the soft steel sleeves are additionally arranged, the soft steel sleeve at the outer side is firstly yielded to consume energy of an earthquake input structure and can play resistance power and ductility functions even when the soft steel sleeve at the outer side is damaged, so that previous damage and destruction of the high-intensity steel plate can be prevented and delayed.

The invention provides a shearing type buckling-restrained energy dissipation brace which has similar tension and compression stiffness, can be mounted and manufactured easily and conveniently, is low in manufacturing cost and comprises a core steel plate, two outer-layer steel plates and bolts. The two outer-layer steel plates are respectively placed on two sides of the core steel plate, mounting connecting sections and steel plate connecting sections are arranged at two ends of the core steel plate, an energy dissipation section is arranged in the middle of the core steel plate, open slots are formed in two ends of the energy dissipation section, deformation holes which are regularly arrayed are formed in positions between the open slots in the two ends of the energy dissipation section, core bolt holes are formed in the steel plate connecting sections, outer-layer bolt holes which are matched with the core bolt holes are formed in the outer-layer steel plates, and the bolts are connected with the core steel plate and the outer-layer steel plates by the core bolt holes and the outer-layer bolt holes. The shearing type buckling-restrained energy dissipation brace has the advantages that the deformation holes which are regularly arrayed are formed in the energy dissipation section of the core steel plate, so that energy can be dissipated, and the shearing type buckling-restrained energy dissipation brace has the similar tension and compression stiffness; the mounting connecting sections and the steel plate connecting sections are arranged at the two ends of the core steel plate, and accordingly the shearing type buckling-restrained energy dissipation brace can be manufactured and mounted conveniently.

The invention relates to the technical field of constructional engineering and bridge engineering shock isolation, in particular to a novel three-dimensional shock isolation device with large vertical static rigidity. The novel three-dimensional shock isolation device comprises a horizontal shock isolating component, a transition steel structure platform and a vertical shock isolating component. The horizontal shock isolating component and the vertical shock isolating component are arranged at the top and bottom of the transition steel structure platform respectively. A vertical damping element and a vertical static support are further included and both arranged at the bottom of the transition steel structure platform, and are parallel to the vertical shock isolating component. The device can achieve the shock isolating function both in the horizontal direction and in the vertical direction, horizontal shock isolation and vertical shock isolation are decoupled and do not implicate each other, and high safety is achieved. The vertical damping component can further relieve the vertical geological process through energy dissipation, the vertical static support can provide large vertical static compression resistance rigidity, meanwhile, certain tensile strength can be provided during a vertical earthquake, the safety of the upper structure is guaranteed, manufacturing is easy and convenient, and construction, mounting and maintenance are convenient.

The invention discloses a light steel composite plate assembled house. The house comprises a foundation, wall plates, floor plates and connecting profiles with grooves. The connecting profiles comprise foundation connecting profiles, wall plate connecting profiles and floor plate connecting profiles. The foundation connecting profiles are fixed on the house foundation, the wall plate connecting profiles are vertically fixed on the foundation connecting profiles, and bottoms of the wall plates are inserted and fixed in grooves of the foundation connecting profiles; the top ends of the wall plate connecting profiles are fixedly connected with the floor plate connecting profiles, and the tops of the wall plates are inserted and fixed in grooves of bottoms of the floor plate connecting profiles; and the floor plates are connected with the floor plate connecting profiles in an inserting or lap joint mode. The light steel composite plate assembled house has the advantages that a mixed structural system formed by the connecting profiles (a light steel structure can be selected) and the wall plates and the floor plates made of high-strength composite insulating plates is provided, parts such as outer wall plates, inner wall plates and the floor plates are effectively integrated with the connecting profiles serving as building unit plate connecting members, and a single-story or multi-story building house is formed.

The invention discloses a pulling-resistant frictional oscillating support for seismic reduction and isolation and relates to the seismic reduction technique of bridges. The pulling-resistant frictional oscillating support for seismic reduction and isolation comprises an upper support plate, an upper sliding plate, a middle sliding plate, a lower sliding plate, a lower support plate, upper L-shaped baffles and lower [-shaped baffles. The upper end of each upper L-shaped baffle is fixed at the outer edge of the upper support plate, the lower end of each lower [-shaped baffle is fixed at the outer edge of the lower support plate, the lower end of each upper L-shaped baffle is sleeved into the corresponding lower [-shaped baffle so that a pulling-resistant function is achieved, the upper L-shaped baffles and the lower [-shaped baffles can move freely along the movement direction of the support, and rubber buffer materials are filled between each upper L-shaped baffle and the corresponding lower [-shaped baffle. The pulling-resistant frictional oscillating support for seismic reduction and isolation has the advantages that the upper support plate, the upper sliding plate, the middle sliding plate, the lower sliding plate and the lower support plate form four sliding friction pairs which have sliding radiuses and friction factors respectively so that the support has high sliding displacement capability; and the upper L-shaped baffles are mutually engaged with the corresponding lower [-shaped baffles, and the rubber buffer materials are filled between each upper L-shaped baffle and the corresponding lower [-shaped baffle, so that the support has a pulling-resistant function.

The invention discloses a precast prestresed-concrete beam-type stair and a making construction method, and belongs to the technical field of constructional engineering. The precast prestresed-concrete beam-type stair structurally comprises a beam-type stair body, an upper stair beam and a lower stair beam, wherein the upper stair beam and the lower stair beam are used for supporting the beam-typestair body; the beam-type stair body comprises a stair-section slant beam and ladder-shaped steps, the stair-section slant beam is arranged in the length direction of the beam-type stair body, the two ends of the steps are supported on the stair-section slant beam, the two ends of beam-type stair body are connected with the upper stair beam and the lower stair beam respectively, a prestresed reinforcing steel bar is arranged at the lower portion of the stair-section slant beam in the length direction, an upper common reinforcing steel bar is arranged at the upper portion of the stair-sectionslant beam in the length direction, stirrups are arranged outside the prestresed reinforcing steel bar and the upper common reinforcing steel bar in the length direction at equal intervals, the prestresed reinforcing steel bar and the upper common reinforcing steel bar are located in the stirrups, and step distribution reinforcing steel bars are arranged in the steps. The precast prestresed-concrete beam-type stair and the making construction method have the advantages of being large in application span, good in crack resistance, light in self weight, convenient to hoist and transport, excellent in earthquake resistance and the like.

The invention provides a beam post steel ring hinging section point, which comprises an upright post, a plurality of cross beams, an inner steel ring, an outer steel ring, a post steel ring plug pin and an inter-steel-ring plug pin, wherein the inner steel ring is sheathed on the upright post, the outer steel ring is sheathed on the inner steel ring, the post steel ring plug pin connects the inner steel ring onto the upright post, the inter-steel-ring plug pin connects the outer steel ring onto the inner steel ring, the inner steel ring rotates by using the post steel ring plug pin as a rotating shaft, the outer steel ring rotates by using the inter-steel-ring plug pin as a rotating shaft, a long shaft of the post steel ring plug pin and a long shaft of the inter-steel-ring plug pin are positioned in the orthogonal direction, and during the earthquake, the inner steel ring does limited rotation relative to the upright post and the outer steel ring, so the upright post generates relative movement with the cross beams and a floor slab, further, the mutual traction effect is not generated by each composition component of a building structure, the earthquake effect can be favorably reduced, in addition, the upright post and the cross beams are connected through rigid bonding-pre-stress-free steel bars, the building structure can be enabled to return to the initial position after the earthquake through the elastic recovery force generated by the bonding-pre-stress-free steel bars during the earthquake, and the structural damage caused by earthquakes can also be reduced.

The invention discloses a precast prestressed-concrete slab-type stair and a making construction method, and belongs to the technical field of constructional engineering. The precast prestressed-concrete slab-type stair structurally comprises a slab-type stair body aslant arranged, an upper stair platform, a lower stair platform, an upper stair beam and a lower stair beam; the upper stair platformis connected with the upper stair beam, the lower stair platform is connected with the lower stair beam, and the two ends of the slab-type stair body are connected with the upper stair beam and the lower stair beam respectively; ladder-shaped steps are arranged on the slab-type stair body; a prestresed reinforcing steel bar is arranged at the lower portion in the slab-type stair body in the length direction, an upper common reinforcing steel bar is arranged at the upper portion in the slab-type stair body in the length direction, and annular distribution reinforcing steel bars are arranged inthe middle in the slab-type stair body in the length direction at equal intervals, and are located between the prestresed reinforcing steel bar at the lower portion and the upper common reinforcing steel bar at the upper portion. The precast prestressed-concrete slab-type stair and the making construction method have the advantages of being large in application span, good in crack resistance, light in self weight, convenient to hoist and transport, excellent in earthquake resistance and the like.

The invention discloses a foam steel board shear wall structure. The foam steel board shear wall structure comprises steel beams and steel columns, wherein the steel beams and the steel columns are connected through beam column joints; foam steel boards are installed between the adjacent steel beams and the adjacent steel columns to form a shear wall steel board; the two sides of the foam steel boards are connected with the steel beams through horizontal angle iron; the two sides of the foam steel boards are connected with the steel columns through vertical angle iron; the foam steel boards and the horizontal angle steel are fastened and connected through transversely distributed vertical bolts; the horizontal angle steel and the steel beams are connected through transversely distributed parallel bolts; the foam steel boards and the vertical angle steel are connected through vertically distributed perpendicular bolts; the vertical angle steel and the steel columns are connected through vertically distributed parallel bolts. The foam steel board shear wall structure can overcome the defects of an ordinary steel board shear wall, can be prevented from buckling failure, and has the advantages of being large in lateral rigidity, good in anti-seismic property, high in ductility, full in energy consumption hysteresis hoop and the like.

The invention relates to a novel nonlinear earthquake reduction device. The novel nonlinear earthquake reduction device can effectively dissipate energy introduced by a body and introduce the energy into the earthquake reduction device in a one-way mode, broadband earthquake resisting is achieved, resonance damage is avoided, and the novel nonlinear earthquake reduction device has suitable rigidity and damping capacity, and is stable in performance, compact in structure, variable in frequency, controllable in damage and easy to manufacture. A vibration absorber is mainly a horizontal earthquake absorbing device, the whole structure is in a long-strip shape, and the novel nonlinear earthquake reduction device comprises end fixing members (1), connecting pre-embedded pieces (2), silica-gel damping mats (3), nonlinear rigid springs (4), steel tube sliding ways (5) and a NES vibrator (6). The novel nonlinear earthquake reduction device can be used for interlayer earthquake isolation and basic earthquake isolation of an engineering structure, and can also be used for earthquake isolation of a mechanical device.

The invention discloses a sliding-friction pendulum combined shock-insulation layer with an ultra-large bottom surface. The combined shock-insulation layer comprises an upper spherical shell layer, a lower spherical shell layer and sliding frames. Four arc-shaped spherical faces are arranged on the upper surfaces of the lower spherical shell layer. Four arc-shaped spherical faces are arranged on the lower surface of the upper spherical shell layer. Each sliding frame is composed of a plurality of sliding blocks, upper connecting components, lower connecting components, connecting beams and sliding frame columns, wherein the sliding frame columns are connected between the upper connecting components and the lower connecting components, and the lateral portions of the upper connecting components and the lateral portions of the lower connecting components are connected with the connecting beams. The upper end surfaces of the upper connecting components and the lower end surfaces of the lower connecting components are welded to the sliding blocks. The sliding frames are in overlap joint with the arc-shaped spherical faces of the upper spherical shell layer and the arc-shaped spherical faces of the lower spherical shell layer through the sliding blocks. According to the sliding-friction pendulum combined shock-insulation layer with the ultra-large bottom surface, the sliding frames are formed through connection of the sliding blocks, and the integral shock-insulation layer is formed by the sliding frames, the upper spherical shell layer and the lower spherical shell layer; and the span of the shock-insulation layer is quite large, the allowable deformation, in the horizontal direction, of the shock-insulation layer is far larger than that of a shock-insulation support, and the requirement for horizontal deformation of the shock-insulation layer under an extremely-powerful earthquake can be completely met.

The invention discloses a concrete-filled steel tube column provided with a soft steel bushing and embedded with a high-tenacity material. The concrete-filled steel tube column comprises an inner pipe (1), core concrete (2), a soft steel bushing (3), bolts (4) and a high-tenacity composite material (6). In the invention, the bottom of an ordinary concrete-filled steel tube is provided with the soft steel bushing (3); and the high-tenacity composite material (6) is embedded into the space between the soft steel bushing (3) and the inner pipe (1). Under the action of conventional earthquake, the bottom soft steel bushing and an concrete-filled steel tube column have high overall working performance, high rigidity and high strength; and under the action of rare earthquake, shearing damage to the bolts is severe, the connection between an inner pipe and an outer pipe is weakened, the co-working performance degenerates, the ductility and energy consumption functions of the inner pipe and the outer pipe are brought into full play respectively, the overall regality is reduced, the structural period is prolonged, and the earthquake action is reduced; and after the soft steel bushing is arranged, an earthquake fortification line is increased, the structural safety is enhanced, and early impairment and damage to a high-strength steel plate are prevented and delayed.

The invention discloses a friction pendulum connected fabricated steel structure system and a design method thereof. The friction pendulum connected fabricated steel structure system comprises at least two layers of steel frame structures and a group of friction pendulum shock isolation devices; steel columns of each layer of steel frame structure are disconnected at the joint with the lower floor; the friction pendulum shock isolation devices are correspondingly arranged between the steel columns of every two layers of steel frame structures; each friction pendulum shock isolation device comprises an upper connection plate and a lower connection plate; the middles of the bottom surfaces of the upper connection plates are connected with plugging blocks; the bottom surfaces of the pluggingblocks are convex curved surfaces which are convex downwards; lugs are arranged on the top surfaces of the lower connection plates; plugging slots are formed in the tops of the lugs; the bottom surfaces of the plugging slots are concave curved surfaces which are concave downwards; the plugging blocks are correspondingly plugged in the plugging slots; the tops of the plugging blocks are higher thanthe tops of the plugging slots; and distances are reserved between the side walls of the plugging blocks and the side walls of the plugging slots. The friction pendulum connected fabricated steel structure system is capable of solving the technical problems that the existing fabricated steel structure buildings are complicated in connection joints, large in field workload and low in constructionefficiency, the joints of the frame structures are rigidly connected and the seismic resistance of the frames is relatively bad are solved.

The invention provides a sliding plate supporting seat. The sliding plate supporting seat comprises an upper connecting plate, an outer ring plate, a rubber supporting seat, a high polymer material plate, a stainless steel mirror plate and a lower connecting plate. A vertical bearing system is composed of the upper connecting plate, the rubber supporting seat, the high polymer material plate, thestainless steel mirror plate and the lower connecting plate. In the vertical force transmission process, the rubber supporting seat does not bear the function of a horizontal load; compared with an ordinary elastic sliding plate supporting seat, the rubber supporting seat cannot be cut off under the earthquake action due to the too large friction coefficient of a lower sliding plate; and a horizontal bearing system is composed of the upper connecting plate, the outer ring plate, a lower sealing plate of the rubber supporting seat, the high polymer material plate, the stainless steel mirror plate and the lower connecting plate, and horizontal force is transmitted step by step through the components during an earthquake, so that when the horizontal force reaches the high polymer material plate, relative sliding between the high polymer material plate and the stainless steel mirror plate happens, and the earthquake effect on an upper structure is reduced through friction energy consumption.

The invention relates to the technical field of concrete shear walls, and discloses a precast cavity type middle-thin wall concrete shear wall. The middle-thin wall concrete shear wall comprises a wall body. A plurality of cavities penetrating in the height direction of the wall body are arranged at intervals in the length direction of the wall body. A connecting bar is arranged in each cavity, wherein the connecting bar comprises a plurality of connecting branch bars, one ends of the connecting branch bars are connected together, and the other ends of the connecting branch bars are circumferentially connected with the inner wall of the cavity to divide the cavity into a plurality of branch cavities, and each branch cavity is used for installing a pipeline. Longitudinal bars are arranged around the wall body in the height direction of the wall body. The outer hoop of each longitudinal bar is provided with a hooping. According to the middle-thin wall concrete shear wall, water and electricity pipeline installing is convenient, construction period prolonging caused by later period decorating is relived, meanwhile, the damage to the structure wall body caused by later period project installing is avoided, in addition, the using amount of materials is reduced, and the anti-seismic property of a component is improved.

The invention discloses a section steel concrete frame inbuilt steel plate core cylinder with a doubly superimposed bottom, which is composed of a section steel concrete superimposed frame column, a power-wasting soft steel plate and a steel plate concrete shear wall. The section steel concrete frame inbuilt steel plate core cylinder with the doubly superimposed bottom is a doubly superimposed column of a superimposition of an externally stuck energy-wasting soft steel plate and a steel tube concrete column as well as a superimposition of the steel tube concrete column and a reinforced concrete column; and the section steel concrete frame inbuilt steel plate core cylinder with the doubly superimposed bottom is a multi-combination body of a combination of reinforcing steel bars and concrete, a combination of the steel plates and concrete as well as a combination of the section steel concrete frame column and the steel plate shear wall. The section steel concrete frame inbuilt steel plate core cylinder with the doubly superimposed bottom, disclosed by the invention, has greater initial rigidity, higher bearing capability, slower attenuation of the bearing force and the rigidity as well as better integral quake-proof energy consumption performance than those of normal reinforced concrete cylinders and has relatively steady earthquake resistant capability in a later stage. After soft steel sleeves are additionally arranged, the soft steel sleeve at the outer side is firstly yielded to consume energy of an earthquake input structure and can play resistance power and ductility functions even when the soft steel sleeve at the outer side is damaged, so that previous damage and destruction of the high-intensity steel plate can be prevented and delayed.