255 results about "Earthquake resistant structures" patented technology

A buckling restrained brace includes an elongate, hollow sleeve, an elongate yielding core extending substantially through the length of the sleeve, and a buckling constraining element between the yielding core and the inner surface of the hollow sleeve and spaced apart from at least one surface of the yielding core, leaving a gap therebetween. The buckling constraining element may be spaced apart from and, thus, the gap may exist between two or more surfaces of the yielding core. Additionally, an inner sleeve, or liner, may be positioned between the buckling constraining element and the yielding core, with the liner being spaced apart from at least one surface of the yielding core. The buckling restrained brace is useful in absorbing loads, such as seismically induced loads, that are exerted upon a steel frame.

The invention relates to the technical field of architecture structural components, and discloses a total assembled steel framework structural system with a restoration function. The total assembled steel framework structural system comprises independent foundations and a plurality of beam column joints. The beam column joint at the center comprises sleeve type steel pipe columns, each sleeve typesteel pipe column comprises a square steel pipe column and an inner circle steel pipe column. The beam column joint not at the center comprises round steel pipe columns, each round steel pipe columncomprises an upper section steel pipe column, a central plug-in column and a lower section steel pipe column. H-shaped steel beams are connected with the round steel pipe columns through sleeve connection parts. Structural system bodies at the same layer form a whole through connection of the two ends of each H-shaped steel beam and the round steel pipe columns or the square steel pipe columns. The sleeve steel pipe columns at the upper layer and the lower layer are connected with each other through double-sleeve type connection parts. The round steel pipe columns at the upper layer and the lower layer are connected through splicing bases. The structural system cannot be destroyed under the effect of small earthquakes, can self restore under the effect of middle earthquakes, and does not collapse under the effect of major earthquakes, components can be rapidly replaced, thus the usage function can be restored, and an innovation of a self restoration type anti-seismic structural systemis achieved.

The invention relates to self-reset shear walls with replaceable coupling beams and belongs to the field of aseismic structure systems. The self-reset shear walls are composed of replaceable coupling beams and self-reset shear wall bodies connected with the replaceable coupling beams. The replaceable coupling beams are composed of replaceable sections and non-yielding sections, and the self-reset shear wall bodies are post-tensioned un-bonded pre-cast shear walls. According to the self-reset shear walls, the concept is clear, construction is convenient, the safety of main body structures can be effectively protected during middle earthquakes or major earthquake, repair and replacing of damaged members after earthquakes are facilitated, and the self-reset shear walls are applicable to important building structures in high-intensity earthquake regions.

A link-fuse joint resists bending moments and shears generated by seismic loading. A joint connection includes a first plate assembly having a first connection plate including a first diagonal slot formed therethrough. A second plate assembly has a second connection plate including a second diagonal slot formed therethrough. The second diagonal slot is diagonally opposed to the first diagonal slot. The second connection plate is position such that at least a portion of the second diagonal slot aligns with a portion of the first diagonal slot. A pin is positioned through the first diagonal slot and the second diagonal slot. The joint connection accommodates a slippage of at least one of the first and second plate assemblies relative to each other when the joint connection is subject to a seismic load and without significant loss of clamping force.

A vibration isolation system for building, comprising a vibration isolation layer, the vibration isolation layer including: an upper layer structure consisted of upper beams and/or slabs and moveable bases, which is coupled to columns of the building; a lower layer structure consisted of lower beams and/or slabs and fixed bases; and vibration isolation devices and elastic member horizon-resetting devices which are mounted between the upper layer structure and the lower layer structure, in which the vibration isolation devices are mounted between the moveable bases and the fixed bases, respectively, and the elastic member horizon-resetting devices are mounted between the beams and/or slabs of the upper layer structure and the lower layer structure, respectively. Therefore, the above devices do not interfere with each other and convenient to maintain, and positions and functional parameters thereof can be set and selected reasonably.

The invention discloses a tunnel anti-seismic supporting system suitable for high seismic intensity area crossing faults, and relates to the field of tunnel supporting. The supporting system comprises a common supporting section, a grouting transition section and an anti-seismic supporting section, wherein the grouting transition section joints the common supporting section to the anti-seismic supporting section; the anti-seismic supporting section comprises a top arch anti-seismic structure and a bottom arch anti-seismic structure, wherein the top arch anti-seismic structure comprises a primary supporting anti-seismic layer, a secondary lining anti-seismic outer layer, a steel plate mould, a damping spring, a rubber cushion layer and a secondary lining anti-seismic inner layer; the primary supporting anti-seismic layer and the secondary lining anti-seismic outer layer are arranged on the inner side of a surrounding rock in sequence, the rubber cushion layer is embedded in the middle of the inner side of the secondary lining anti-seismic outer layer, and the steel plate mould and the damping spring are arranged at two ends between the secondary lining anti-seismic outer layer and the secondary lining anti-seismic inner layer. The supporting system eliminates the influence of diastrophism and displacement of relatively big crossing faults on the internal force of the supporting structure and further improves the anti-seismic property of a tunnel, and multiple unit bodies can be select and adopted to combine according to actual conditions.

The invention provides a recoverable function framework structure system, and belongs to the field of anti-seismic structural systems. The recoverable function framework structure system mainly consists of framework posts, framework beams, self-resetting energy consumption knee braces, high-intensity prestress tensioning cables and dampers, wherein the self-resetting energy consumption knee braces are arranged at corner positions of each layer of framework, the framework posts and a foundation are disconnected, the upper ends of the high-intensity prestress tensioning cables are anchored on the tops of the framework posts, the lower ends of the high-intensity prestress tensioning cables are anchored on the foundation, and the dampers are arranged between the framework posts and the foundation. The recoverable function framework structure system has the advantages that the concept is clear, the construction is convenient, the safety of the beams and the posts can be effectively ensured during strong seismic shock, meanwhile, the restoration and the replacement of damaged components after the seismic shock can be favorably realized, and the recoverable function framework structure system can be widely applied to important building structures in an area with high seismic intensity.

A pin-fuse joint generally utilized in a beam-to-column joint assembly subject to extreme seismic loading is described. The pin-fuse joint resists bending moments and shears generated by these loads. The joint is comprised of standard structural steel building materials, but may be applied to structures comprised of structural steel, reinforced concrete, and or composite materials, e.g., a combination of structural steel and reinforced concrete. The beam-to-column assembly is comprised of a column and a beam and a plate assembly that extends between the column and the beam. The plate assembly is welded to the column and is attached to the beam via the pin-fuse joint. The pin fuse joint is created by a pin connection through the beam and the connection plates of the plate assembly at the web of the beam. Additionally, both the plate assembly and the beam have curved flange end connectors that sit flush against one another separated only by a brass shim when the beam and plate assembly are joined. The curved flange end connectors of the beam and plate assembly are then secured against one another by torqued high-strength bolts.

The invention relates to hot rolled steel and a preparation method thereof, in particular to a hot-rolled steel belt used for a Q235-level anti-seismic structure and a preparation method of the hot-rolled steel belt. The hot-rolled steel belt used for the Q235-level anti-seismic structure is composed of, by mass percentage, 0.13%-0.18% of C, 0.01%-0.20% of Si, 0.10%-0.30% of Mn, smaller than or equal to 0.025% of P, smaller than or equal to 0.015% of S and the balance Fe and inevitable impurities. The hot-rolled steel belt produced through the method and used for the Q235-level anti-seismic structure is low in alloy cost and simple in process and has the beneficial effects of being low in yield-strength ratio, high in ductility, high in impact toughness, narrow in strength fluctuating range, good in welding performance, capable of obtaining an obvious yielding platform and the like.

A longspan cable-stayed bridge aseismic structure provided with buckling restrained braces is characterized in that the paired buckling restrained braces are installed between the bottom surface of a girder and a lower cross beam of a bridge tower symmetrical about the center line of a bridge floor, one end of each buckling restrained brace is connected to the bottom surface of the girder, and the other end of each buckling restrained brace is connected to the top face or side face of the cross beam; the buckling restrained braces can also be symmetrically and transversely installed between the bottom surface of the girder and the lower cross beam of the bridge tower; longitudinal installation of the buckling restrained braces and transverse installation of the buckling restrained braces can be combined; the buckling restrained braces can also be used in cooperation with liquid dampers; under normal conditions, the proper rigidity of the buckling restrained braces can make a longspan bridge almost achieve consolidation with tower girder and pier or a support system have a sound anti-wind load; in a strong earthquake, yielding energy dissipation of the buckling restrained braces occurs, a tower and girder is nearly in a floating or semi-floating working state, earthquake load is reduced, and displacement response of the girder is controlled through energy dissipation hysteresis. The structure can be used for aseismic design of a newly built longspan cable-stayed bridge or aseismic reinforcement of an existing longspan cable-stayed bridge, and can also provide reference for building of a suspension bridge.

The invention belongs to the technical field of buildings and particularly relates to an assembling type building earthquake-resistant structure applied to a cement prefabricated part. The assemblingtype building earthquake-resistant structure applied to the cement prefabricated part comprises a base; a first groove is formed at the upper end of the base; a bottom plate is arranged in the first groove; the upper end of the bottom plate is fixedly connected with a house body; the bottom end of the bottom plate is fixedly connected with a plurality of first damping devices and a plurality of elastic pieces; the lower ends of the first elastic pieces are fixedly connected with the bottom of the first groove; a plurality of supporting columns are arranged in the house body; the upper end andthe lower end of the supporting column are fixedly connected with mounting plates; a plurality of second damping devices are arranged on the top surface of the house body and at the upper end of the bottom plate; the second damping devices are rotatably connected with the mounting plates; and each first damping device comprises a first connected rod fixedly connected with the lower end of the bottom plate. The assembling type building earthquake-resistant structure applied to the cement prefabricated part has the following advantages: through combined use of the two damping devices, the damping effect is strong and good protective effect on the assembling type house can be achieved.

The invention discloses an earthquake-resistant structure for a dam crest of a high earth-rock dam and a construction method of the earthquake-resistant structure. The earthquake-resistant structure comprises a lattice frame and a slope protecting net which are arranged in a range from 3/4-4/5 of height of the high earth-rock dam to the dam crest, wherein the lattice frame is arranged in a dam body and comprises river-along flat sheets and dam-axial flat sheets which are connected in a crossed manner; the slope protecting net is arranged on the dam surface and is connected with the lattice frame. The construction method is applied to the construction of the earthquake-resistant structure for the dam crest of the high earth-rock dam. The river-along flat sheets and dam-axial flat sheets are of a flat structure and have relatively good anti-grinding effects, and the friction effect between the flat structure and the piled stones is relatively strong; the river-along flat sheets and dam-axial flat sheets are respectively arranged along the flow direction of river and the length direction of the high earth-rock dam and are capable of resisting earthquake forces in corresponding directions, so that the earthquake-resistant effect is relatively good; the piled stones of granular materials can be integrally restrained by virtue of the lattice frame, the dam surface can be protected by the slope protecting net, and the integral earthquake resistance of the structure can be enhanced by virtue of common action of the lattice frame and the slope protecting net.

The invention relates to an active fault spanning aseismic structure and a construction method thereof. A damping ring is arranged in the surrounding rock of the lining structure at a fault fracture zone, the lining structure is located in the inner round of the damping ring, and a certain spacing distance exists between the lining structure and the damping ring; left, right and upper sides of thetunnel cross section at the fault fracture zone are expanded relative to the tunnel cross section of the stable section; the lining structure penetrating through the fault fracture zone is of a vertical segmental structure, and two adjacent lining segments are connected through a folded flexible joint in the deformation joint. The damping ring is adopted to weaken the earthquake action, and partsof seismic wave energy is absorbed to consume and reduce the earthquake energy; the whole lining structure is converted to the lining segment from, flexible chaining connection capable of bearing large deformability between the two adjacent lining segments is adopted, so that the staggered displacement is mainly absorbed by the flexible chaining connection, and the earthquake resistance and damping performance of the tunnel structure is improved. According to the structure, earthquake resistance and diastrophism resistance are combined, and the whole safety of a tunnel can be greatly improved.

The invention belongs to the technical field of civil engineering aseismic structural systems, and provides a ductile coupling beam swinging steel frame system. According to the ductile coupling beamswinging steel frame system, steel supporting frames composed of frame beams, frame columns and steel supports bear the vertical load, the lateral rigidity and resilience are provided, and the elasticity is maintained all the time by allowing the bottoms of the steel columns to rise under the action of an earthquake; seismic energy is dissipated through replaceable connecting beams and swinging type column feet, wherein the steel supporting frames on the left side and right side are connected through the replaceable connecting beams, and the bottoms of the frame columns adopt the swinging typecolumn feet; when a structural system is subjected to the seismic action, the seismic energy is dissipated by the replaceable connecting beams and the swinging type column feet, and the steel supporting frames on the two sides are prevented from being damaged; and the concept of the structural system is clear, design is simple, the action mechanism is clear, the replaceable connecting beams and the swinging type column feet are used as energy dissipation elements and connected with steel columns through bolts, input energy is dissipated in the earthquake, and after the earthquake, the purposeof quick recovery of the use function of the structure system can be achieved by replacing an energy dissipator.

The invention relates to the field of housing construction equipment, in particular to an earthquake-resistant structure of civil engineering and a method thereof. The earthquake-resistant structure comprises a damping cylinder; an upper connecting plate is integrated on the upper portion of the damping cylinder; a lower connecting plate is integrated on the lower portion of the damping cylinder; steel plates and rubber plates are arranged in staggered modes in the damping cylinder; a lead core rod is arranged in the central part of the damping cylinder through a through hole in a penetrating mode; and the earthquake-resistant structure of civil engineering is arranged in a housing earthquake-resistant layer or a nonbearing wall. According to the earthquake-resistant structure of civil engineering, the effects of bearing and fixing on a building are achieved, the effects of earthquake isolation and damping on an earthquake can be further achieved, and the safety degree of the housing building is improved.

The invention discloses a bridge ductility anti-earthquake structure easy to replace after an earthquake. The bridge ductility anti-earthquake structure is composed of a foundation and anti-earthquakechock blocks, wherein the foundation and the anti-earthquake chock blocks are relatively independent; the anti-earthquake chock blocks are arranged on the upper side surface of the foundation; and the anti-earthquake chock blocks are connected with the foundation through a plurality of vertical shear reinforcements. Based on the above-mentioned structure, the invention also discloses a corresponding construction method. The bridge ductility anti-earthquake structure easy to replace after the earthquake and the construction method, disclosed by the invention, have the following beneficial technical effects: the deformation quantity of the bridge ductility anti-earthquake structure is larger, so that the transverse displacement of a girder can be better limited; after the anti-earthquake chock blocks are damaged, the damage to the foundation is less; and the anti-earthquake chock blocks are relatively convenient to replace, thereby being favorable for repairing in rescue and relief works after the earthquake.

The invention relates to an earthquake resistant structure of a high earth-rock dam in an earthquake region. The invention is to provide an integral type earthquake resistant structure of the high earth-rock dam in the earthquake region, so as to give play to an integral earthquake resistant effect, enhance earthquake resistance and solve defects of poor material durability, complicatedness in construction and large construction interference in the prior art. According to the invention, a technical scheme is as follows: the earthquake resistant structure of the high earth-rock dam in the earthquake region is characterized by comprising anchoring bodies and a slope protective layer, wherein the anchoring bodies are positioned in a rockfill at the upper part of a dam body and placed every certain elevation; the slope protective layer is positioned on the surface of a dam slope; each anchoring body is uniformly connected with a group of earthquake resistant inhaul cables; and the other ends of the earthquake resistant inhaul cables are anchored together with the protective layer. The earthquake resistant structure of the high earth-rock dam in the earthquake region, provided by the invention, is suitable for high earth-rock dam projects in highly seismic regions.

The invention discloses a civil engineering aseismic structure and a method thereof, and belongs to the technical field of housing construction equipment. The civil engineering aseismic structure includes U-shaped pieces and tube structures which are vertically opposite and protective devices, first spring assemblies and second spring assemblies which are horizontally opposite in a sleeve joint mode; a joint of two U-shaped pieces which are vertically opposite is provided with the first spring assemblies, the tube structures include external tubes, internal tubes, a plurality of elastic ballsand elastic column bodies, and the multiple elastic balls are separately arranged at the upper ends and the lower ends of the external tubes and the internal tubes; and the protective devices includeside plates, front protective plates and rear protective plates, the front protective plates and the rear protective plates are both provided with notches, bolts are arranged in the notches, and the inner sides of the side plates are connected with the U-shaped pieces through the second spring assemblies. The whole civil engineering aseismic structure adopts the characteristic of increased shock resistance from outside to inside, and the purposes of no damage in small shock, repair in middle shock and no collapsing in large shock can be achieved.

An anti-seismic building structure that can resist damage to buildings caused by earthquakes, adopts liquid buoyancy to support the gravity of the building, and uses the flexibility of the liquid to absorb the impact of seismic waves. The anti-seismic building structure includes floating balls, liquid tanks, elastic buffers, and load-bearing columns And anti-shock wave building, in which the floating ball is submerged in the liquid tank, the liquid in the liquid tank provides buoyancy to support the anti-shock wave building, and the elastic buffer slows down the impact of the floating ball on the inner wall of the liquid tank caused by the impact of the shock wave, so that the overall building structure The movable connection is adopted to absorb the earthquake wave to alleviate the damage to the building by the earthquake wave, and the earthquake resistance level is high. The invention is widely used in small and medium-sized buildings in areas with frequent earthquake activities, residential buildings, factories, and buildings and facilities in various leisure and entertainment places. Anti-seismic.

The invention relates to a civil engineering anti-seismic structure. The civil engineering anti-seismic structure effectively solves the problem that an existing civil engineering anti-seismic structure does not subjected to fully scientific demonstration and test demonstration, and then the existing civil engineering anti-seismic structure is put into use, so that the protection effect is causedto be poor. According to the technical solution, the civil engineering anti-seismic structure is characterized in that a retractable hose is arranged between every two adjacent conveying pipes for connection, when an earthquake occurs, a certain displacement can be generated between the every two adjacent conveying pipes in the seismic wave direction, that is, the connecting position of the everytwo conveying pipes can deform to a certain degree, and rigid connection is changed into flexible connection, so that the protection capacity for coping with the earthquake is greatly improved, and the pipeline connecting part is better protected.

The invention relates to an oval face steel ball building earthquake-resistant structure, which is an earthquake-resistant building structure and belongs to the technical field of building structures. A design for strengthening constructive intensity, earthquake-resistant technology and a method for rolling steel balls have problems of building displacement, rubber aging or insignificant earthquake-resistant effect and the like after an earthquake. The oval face steel ball building earthquake-resistant structure adopts a structure in which a flat-slab and a whole board base are separate, andan oval face steel ball structure is arranged between the flat-slab and the whole board base below a load-bearing column to eliminate the action of shearing force of earthquake waves on the constructions completely so as to play an earthquake-resistant role. The oval face steel ball building earthquake-resistant structure has the advantages of long service life because of structural performance unchanged over time, simple structure, low investment, convenient construction, significant earthquake-resistant effect because the horizontal shearing force of the earthquake waves on the constructions is completely converted and no displacement of the constructions after the earthquake. The oval face steel ball earthquake-resistant structure for the constructions is suitable for various ground constructions except for dams, steel towers and chimneys and has good earthquake-resistant performance.