172results about How to "Reduce earthquake force" patented technology

A remote pulse TDR liquid level measurement system and method may include inserting a probe into a body of water. The probe has a probe/air interface, and the body of water includes an air/water interface. A narrow pulse is remotely transmitted to the probe via a coaxial cable. A first impedance mismatch is received from the probe/air interface in a form of a positive reflected pulse, and a second impedance mismatch is received from the air/water interface in a form of a negative reflected pulse. A time between the positive reflected pulse and the negative reflected pulse is calculated, and the time is converted to a distance, the distance being indicative of the water level.

The invention relates to a reticulated shell-annular truss frame-irregular-shaped combination column combined support spherical tank system capable of slightly moving. The system comprises combined spherical tanks, reticulated shell-annular truss frame-irregular-shaped combination column combined supports, a rubber ball-damper shock-absorbing energy consumption device, wherein annular truss frames are encircled outside the reticulated shells, and are connected with the irregularly-shaped combination columns; the combined spherical tanks are arranged on the reticulated shell-annular truss frame-irregularly-shaped combination column combined supports; the rubber ball-damper shock-absorbing energy consumption device is arranged between the reticulated shell pitch points and the combined spherical tanks; the rubber ball- damper shock-absorbing energy consumption device is composed of dampers and rubber balls; the rubber balls are arranged at one ends of the dampers; concave slide tracks are arranged on the outer walls of the combined spherical tanks; the rubber balls are positioned in the concave slide tracks; the other ends of the dampers are fixed with the pitch points of the reticulated shells; the irregularly-shaped combination columns are composed of solid-web section steel and reinforced concrete; the solid-web section steel is placed in the reinforced concrete; an L-shaped support seat is arranged at the top ends of the combination columns. The system can move slightly in any direction under the strong shock or the strong wind, and has excellent energy consumption shock-absorbing performance and wing resistance.

To provide building foundation structure formed with a soil improving body and raft foundation that can suppress weight increase of a soil improving body while achieving suppression of differential settlement and improvement of bearing capacity of the whole foundation and that can be applied to medium-rise buildings.

The invention discloses a deformation-controllable frame filling wall which is mainly composed of a frame 1, a filling wall 2, deformation control parts 3, horizontal tie bars 4, restraint columns 5 and horizontal connection beams 12. The deformation-controllable frame filling wall is characterized in that the frame 1 is composed of a frame upper beam 6, a frame lower beam 7, a frame left column 8 and a frame right column 9, the filling wall 2 is a brickwork filling wall which is built by bricks (clay bricks and hollow bricks) or concrete building blocks, the deformation control parts 3 are arranged at positions where four corners of the filling wall contact with joints of the frame, the filling wall 2 is connected with the frame left column 8 and the frame left column 9 through a flexible material 10, and connected with the frame upper beam 6 and the frame lower beam 7 through an elastic connection material 15, the restraint columns 5 are arranged at positions where the filling wall 2 is connected with the flexible material 10, and the horizontal tie bars 4 which are arranged in the height direction of the filling wall are connected with the restraint columns. When the height of the filling wall is large, horizontal tie beams 12 can be arranged in the filling wall, and two ends of the horizontal tie beams 12 are connected with the restraint columns 5.

A swinging self-resetting dual-deck bridge bent pier based on energy-dissipation angle steel with vertical joints comprises a bent pier foundation, bottom-layer prefabricated concrete filled steel tube pier bodies arranged on the bent pier foundation and filled with self-compacting steel fiber reinforced concrete in a pouring mode, a bottom-layer prefabricated bent cap arranged at the top ends of the bottom-layer prefabricated concrete filled steel tube pier bodies, top-layer prefabricated pier bodies on the bent cap, a top-layer prefabricated bent cap arranged at the top ends of the top-layer prefabricated pier bodies, unbounded prestressed tendons penetrating through the bottom-layer prefabricated concrete filled steel tube pier bodies, the energy-dissipation angle steel with the vertical joints, bolts, steel square keys and the like. All the energy-dissipation angle steel with the vertical joints enables the bottom-layer prefabricated concrete filled steel tube pier bodies to be connected with the bent pier foundation and the bottom-layer prefabricated bent cap through the bolts, and the steel square keys are arranged at swinging joint portions. Under a strong earthquake, the bottom layer of the double-deck bent pier shakes, and the unbounded prestressed tendons provide self-resetting capability. Earthquake damage is concentrated in the energy-dissipation angle steel with the vertical joints, and the energy-dissipation angle steel with the vertical joints can be replaced when damaged after the earthquake and becomes fuses in the structure.

The invention discloses a light-weight aggregate shale ceramic particle and a production method thereof, which includes powdered argillaceous shale, pulverized fuel ash, additive and water; the ratio of the ingredients is that: 15-90 parts of powdered argillaceous shale, 5-60 parts of pulverized fuel ash, 1-12 parts of additive and 4-15 parts of water. The production method includes the conventional collection of argillaceous shale and the crashing process, besides, the invention also comprises the following steps: (1)screening; (2) the mixing materials is prepared; (3) the mixing material is added into a marble machine so as to produce raw meal pellets and is discharged; (4) the raw meal pellets are fed into a multi-cylinder rotary kiln for drying and sintering and finally the shale ceramic particles are formed; (5) the products of shale ceramic particles, ceramic sand and ceramic block can be obtained after the cooling and the sizing screening process by a trommel screen. The product is sintered in a multi-cylinder rotary kiln at temperature of 1150-1200 DEG C and the material property is changed and is sound-insulating, light in weight, shock-resistant, weather-resistant, and corrosion-resistant, has distinct energy-saving effect and is beneficial to generalization and implementation.

The invention discloses a transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and an arranging method. The bridge anti-seismic stop block structure comprises a steel corbel, a stop block body and a steel frame, wherein the steel corbel is fixed to the side face of the top of the portion, nearby a movable support, of a bridge pier, the stop block body is fixed to the steel corbel, and the steel frame is fixed to the bottom of a bridge body. The anti-seismic stop block structure is arranged nearby each movable support, the collision positions are disperse, multiple anti-seismic stop block structures are arranged, therefore, the seismic force acting on each stop block structure can be effectively decreased, and then local damage of the stop block structures can be reduced; each stop block body comprises an energy dissipation type low-yield-point steel plate. According to the bridge anti-seismic stop block structure, large displacement between beam bodies and the bridge piers can be effectively limited, and damage of the movable supports and expansion joints can be reduced; under the action of a violent seism, not only can local damage of the collision areas and damage transmitted to the bottoms of the bridge piers be effectively reduced, but also part of seismic energy can be dissipated by means of plastic deformation of the energy dissipation type low-yield-point steel plates arranged in the stop block bodies.

The invention discloses a built-in section steel column-lattice steel beam-mesh steel support concrete wall body and a manufacturing method, and belongs to the field of steel-concrete combined shear walls. The wall body comprises section steel laminated border columns, section steel core columns, lattice steel beams, mesh steel supports and a reinforced concrete shear wall body. The section steel laminated border columns are arranged at the two ends of the shear wall body. The section steel core columns are arranged in parallel between the section steel laminated border columns. The section steel laminated border columns are connected with the section steel core columns through the lattice steel beams and the mesh steel supports, and the section steel core columns are connected with one another through the lattice steel beams and the mesh steel supports. Reinforcements of the shear wall body are assembled, and concrete is poured to form the built-in section steel column-lattice steel beam-mesh steel support concrete wall body. Compared with an ordinary concrete-filled steel tube border shear wall and an ordinary steel plate shear wall, the built-in section steel column-lattice steel beam-mesh steel support concrete wall body has the advantages that the bearing capability is improved, the bearing capability and the rigidity are slowly attenuated, and the post seismic performance is stable; by a section steel column-lattice steel beam-mesh steel support steel structure skeleton, the ductility and energy consumption performance of the shear wall are greatly improved, and the seismic performance is high; and a steel structure is convenient to construct, and can be used for the seismic design of a large-sized complex high-rise buildings.

The invention discloses a three-way limiting buffering bridge anti-seismic stop dog structure and an arranging and installing method. The bridge anti-seismic stop dog structure comprises a steel corbel, a stop dog lower structure and a stop dog upper structure; the steel corbel is fixed to the side face, in the bridge axial direction, of the top of a pier close to a bridge movable supporting base, the stop dog lower structure is fixed to the top of the steel corbel through bolts, a groove is formed in the lower portion of the stop dog upper structure, the stop dog upper structure is fixed to the bottom of a main beam of the bridge through bolts, and an impact block is arranged on the upper portion of the stop dog lower structure. Relative large displacement between a beam body and the pier in the bridge axial direction, bridge transverse direction and vertical direction can be effectively limited, damage to the movable supporting base and expansion joints is reduced, and the beam body is prevented from falling in the bridge axial direction and bridge transverse direction and prevented from vertically getting away from the supporting base to cause damage on the supporting base, beam cocking damage and vertical impact damage between the beam body and the supporting base. The three-way limiting buffering bridge anti-seismic stop dog structure is simple in structure, convenient to construct, easy to repair and replace and suitable for new and old bridges.

The invention discloses a damper with an assembled structure. The damper comprises a first clamping plate module, a second clamping plate module, a damping bar module and a pin module, the first clamping plate module comprises a first connecting plate and a plurality of first clamping plates, the first clamping plates are fixed on one side of the first connecting plate at intervals, the other side of the first connecting plate is used for fixedly connecting with a beam structure, the second clamping plate module comprises a second connecting plate and a plurality of second clamping plates, the second clamping plates are fixed on one side of the second connecting plate at intervals, the other side of the second connecting plate is used for fixedly connecting with a column or a wall, the damping bar module is fixed on the first clamping plates and the second clamping plates in a penetrating manner, the pin module is fixed on the first clamping plates and the second clamping plates in a penetrating manner, and at least one first clamping plate is fixed between two adjacent second clamping plates. The damper with the assembled structure is small in volume, cost is saved, elastic rigid connection of joints under small seism can be ensured, plastic varying rigid connection of the joints under large seism can be ensured, energy consumption actions of the damper are achieved, seismic force applied to the structure is decreased, and safety of the main structure is protected.

The invention provides an overlaid assembly-type concrete dense-rib floor structure system and a construction method for the same. The system comprises a baseplate and a top plate, wherein the baseplate is composed of multiple prefabricated baseplates which have the same division width and are connected by overlaying steel bars; the top plate is a cast-in-situ top plate with a rib beam; the base plate and the top plate are overlaid and assembled; and a force bearing steel bar which is in overlapped connection with an overlaid beam steel bar is stretched out from an end head of the rib beam. The construction method comprises the steps that the prefabricated baseplate is prepared at a plant; hoisting is conducted on site; rib beam stirrups and rib beam reinforcing bars are disposed, and a hollow box or light material body is disposed; structural steel bars of the top plate are disposed; the rib beam reinforcing bars stretch out from the lateral sides and are in overlapped connection with the overlaid beam; and concrete pouring, maintenance and shaping are carried out. According to the invention, erection and dismounting of templates and supporting tools are omitted; work loads are reduced; construction cost is reduced; construction efficiency is increased; force bearing is more rational; and quality is better.

The disclosed seismic isolation bearing includes an upper base plate, a lower base plate, a disc bearing core, and at least one shear spring. The upper and lower base plates each have an upper surface and a lower surface. The disc bearing core is centrally positioned with respect to the planes of the upper and lower base plates and is in contact with the lower surface of the upper base plate and the upper surface of the lower base plate, where the disc bearing core allows the lower surface of the upper base plate to slide along the disc bearing core. The shear spring is coupled to the lower surface of the upper base plate and the upper surface of the lower base plate, deforms in shear upon lateral movement of the upper base plate relative to the lower base plate, and exerts a lateral return force on the upper base plate when laterally displaced.

The invention relates to a connection mode of a pier and a bearing platform through additional mild steel dampers, and belongs to the field of bridge engineering. According to the connection mode, mainly a reinforced concrete pier section, a concrete-filled steel tube pier section and additional mild steel dampers are arranged, wherein the section of a concrete-filled steel tube is a reduced scale section, and the vertical bearing capacity of the concrete-filled steel tube section with the reduced scale section is not lower than that of the reinforced concrete section; the additional mild steel dampers are arranged between the top of the bearing platform and the bottom of the reinforced concrete section. Under the effect of earthquakes, the plasticity deformation of the pier is focused on the concrete-filled steel tube section, so that a plastic hinge release pier bottom bending moment is formed; besides, the reinforced concrete section swings around a hinge to stimulate the mild steel dampers to resist earthquake force and dissipate earthquake energy. The energy consumption characteristics of the mild steel dampers can have protective effects on the concrete-filled steel tube section, through reasonable design, the concrete-filled steel tube section can be used only with slight repair and maintenance after the earthquakes, the damage of the main structure of a bridge is small, the normal service of the bridge is not influenced, and the damaged mild steel dampers are convenient to exchange.

The invention discloses a composite floor with a self-weight reducing function and favorable structural stiffness. The composite floor comprises a plurality of upright columns, column caps, hidden beams and a plurality of square dense rib plates, wherein the plurality of upright columns are vertically arranged and are uniformly distributed in a dot matrix way; the hidden beams are a plurality of beams which are horizontally and longitudinally crossed; one of the hidden beams is arranged between every two adjacent upright columns; a square rigid frame is confined by every four upright columns and every four hidden beams; two sides of the hidden beams in each square rigid frame are provided with upper hollow plate strips which are parallel to the hidden beams and are continuously distributed; two ends of the upper hollow plate strips extend to the corresponding column caps; central slabs larger than the dense rib plates in size are arranged in the centers of the rigid frames; and the dense rib plates are located between the central slabs and the upper hollow plate strips. The self-weight of a light floor slab can be reduced by using the composite floor; and the central slabs and the dense rib plates are used for jointly bearing, so that the floor simultaneously has the advantages of a hollow floor and a dense rib floor.

A sliding seismic isolator includes a first plate attached to a building support, and at least one elongate element extending from the first plate. The seismic isolator also includes a second plate. The first and second plates are capable of moving relative to one another along a horizontal plane. The seismic isolator also includes a lower support member attached to the second plate, with a biasing arrangement positioned within the lower support member. The elongate element(s) extend from the first plate at least partially into the lower support member, and movement of the elongate element(s) is influenced or controlled by the biasing arrangement. The seismic isolator also includes a damping structure with closed ends spaced apart from the first plate and the base of the seismic isolator. The damping structure is configured to contain a substance, such as a liquid, gas, silicone, and/or a combination thereof, and to expand longitudinally when it is compressed.

The disclosed seismic isolation bearing includes an upper base plate, a lower base plate, a disc bearing core, and a shear spring surrounding the disc bearing core. Concave recesses are formed in a lower surface of the upper base plate and an upper surface of the lower base plate. The disc bearing core is centrally positioned with respect to the planes of the upper and lower base plates and can slide along the recesses of the upper and lower base plates, where the recesses exert a lateral return force on the disc bearing core when displaced from a central position. The shear spring surrounds the disc bearing core, deforms in shear upon lateral movement of the upper base plate relative to the lower base plate, and exerts a lateral return force on the upper base plate when the upper base plate is laterally displaced.

The invention discloses a three-direction composite position limiting device, and relates to a beam body and a pier table. The position limiting device comprises an upper stop block and a lower stop block, wherein the upper stop block is anchored at the bottom surface of the beam body, the lower stop block is anchored at the top surface of the pier table, each of the upper stop block and the lower stop block is of an n-shaped structure and consists of a framework beam, a framework post and an anchoring structure, the upper stop bock and the lower stop block are in a criss cross reverse buckling state, the lower stop block with a downward opening is positioned above the upper stop block with an upward opening, a temporary fixing device used for connecting the upper stop block and the lower stop block is arranged between the framework beam of the upper stop block and the framework beam of the lower stop block, the inner surface of the framework beam of the upper stop block is provided with a lower friction pair, the inner surface of the framework beam of the lower stop block is provided with an upper friction pair. The three-direction composite position limiting device has the advantages that the traditional separated stop blocks are integrated, the too great relative displacement between piers and beams under the effect of the earthquake can be effectively limited, the normal displacement of a support seat is ensured, the vertical lifting separation of a main beam under the effect of the earthquake is prevented, the impact force on the piers and the beams is buffered through a buffering device, and the earthquake force of the lower part structure is effectively reduced.

The invention belongs to an assembled high-rise or super high-rise residential building with high safety and comfort. The technical scheme adopted by the invention is as follows: the building comprises a main structure and a plurality of building units (4) and is characterized in that the main structure comprises a shear wall (1), a plurality of main frame girders (2) and floor slabs (3), wherein the plurality of building units (4) can be hierarchically assembled on each floor slab (3); and each building unit (4) comprises a unit frame girder (41), a unit frame column (42) and a unit floor slab (43). The invention has the beneficial effects that (1) an optimized high-rise or super high-rise residential building is provided, the building is of a mammoth structure, the main structure is a reinforced concrete shear wall structure, and each building unit is of a light steel structure; and (2) because the assembled construction is adopted by each building unit, the construction can be carried out respectively according to the needs, and the alternate construction between the main structure and each building unit can be realized, thereby greatly improving the operating efficiency.

The invention discloses an energy-dissipation self-resetting double-layer rectangular hollow concrete-filled steel tube swing pier structure system, and belongs to the field of bridge engineering. Theswing pier structure system is mainly composed of main beams, supporting seats, a coping, a double-layer rectangular hollow concrete-filled steel tube pier, a bearing platform, a non-bonded prestressed fiber reinforced polymer (FRP) reinforcement with a self-resetting function and anti-buckling dog-bone-shaped metal dampers. The double-layer rectangular hollow concrete-filled steel tube pier andthe coping are cast in place to form a whole to be placed on the bearing platform, and are connected with the bearing platform through non-bonded prestressed FRP reinforcement and the anti-buckling dog-bone-shaped metal dampers so as to play the role of self-resetting and dissipate seismic energy. The designed swing pier structure system is clear in mechanical mechanism, on the premise of ensuringsufficient strength and stiffness of the structure system, the seismic action borne by the structure can be reduced by local lift-off of the pier on the bearing platform, the effective energy dissipation capacity and self-resetting capacity are provided, and the problems of serious damage and large residual deformation of a traditional cast-in-situ pier after an earthquake action can be solved.

The invention relates to a reinforcement lightweight aggregate concrete flat beam structure which comprises a column, a beam and a plate, wherein the beam is a flat beam made of a reinforcing steel bar and lightweight aggregate concrete, the width of the flat beam is more than or equal to the height; and the column is a reinforcement lightweight aggregate concrete column. The reinforcement lightweight aggregate concrete flat beam structure provided by the invention also has better properties of light weight, energy saving, environment friendliness, good durability and the like of the lightweight aggregate concrete under the condition of the advantages of reducing floor height, avoiding pipeline beam crossing and the like, greatly reduces self gravity of the whole building structure and improves earthquake resistant behaviour of the structure while ensuring bearing capacity, and has remarkable economic and social benefits.