3900results about "Protective buildings/shelters" patented technology

The invention discloses a composite protective structure resistant to blast shock which is mainly a point truss honeycomb integral protective structure formed by a honeycomb tensile layer and a lattice truss-type compression resistance layer through welding spots and connecting keys, and a foam energy absorbing layer is added on the outer layer. According to the composite protective structure, theforce transmission path of a concrete protective structure under the action of blast is innovatively optimized, the resistance level of the protective structure can be greatly improved, and the structure ductility is improved; and the dispersion of concrete fragments in the structure can be restrained, and the phenomenon of blast and explosion-induced collapse of similar traditional concrete protective structures is eliminated.

The invention relates to the technical field of structural engineering shock isolation, in particular to a quasi-zero stiffness shock isolation device based on hydraulic negative stiffness and a design method thereof. A quasi-zero stiffness shock isolation device based on hydraulic negative stiffness comprises a vertical bearing unit which comprises at least one vertical spring, and the two ends of the vertical spring are connected to the top face of a lower connecting plate and the bottom face of an upper connecting plate respectively; the negative stiffness unit comprises a hydraulic oil cylinder and a piston rod, the piston rod extends into the hydraulic oil cylinder, and the hydraulic oil cylinder and the piston rod are hinged to the lower connecting plate and the upper connecting plate respectively, or the hydraulic oil cylinder and the piston rod are hinged to the upper connecting plate and the lower connecting plate respectively; the distance between the upper connecting plate and the lower connecting plate is increased or decreased to drive the length of the piston rod extending into the hydraulic oil cylinder to change so as to provide negative stiffness. The problems that in the prior art, when a nonlinear vibration isolation system provides negative stiffness in a metal horizontal spring compensation mode, a quasi-zero stiffness working zone is narrow, the bearing capacity is low, and the requirement for installation precision is high are solved.

The invention belongs to the technical field of low-frequency vibration control, and provides a low-frequency tuned mass damping device for reversely stretching a compression spring in order to solve the problem that a traditional tuned mass damper is limited in use of a vertical space due to too large net deformation of the spring under the low-frequency condition. According to the device, large compression deformation and reverse tensile deformation of the spring are fully realized in a limited vertical space in a manner of performing super-compression-reverse tensile treatment on the compression spring, relatively low rigidity required by a vibration system is achieved, low-frequency tuning can be realized in the limited vertical space of a bridge girder, and the rigidity of the vibration system is improved. The frequency application range of the tuned mass device is greatly expanded; and meanwhile, the problems that the stability problem is caused when a traditional compression spring mass body is arranged on the spring and the damping is too high and unstable due to the fact that a guide component is added are solved. The device is simple in structure, low in damping, low in space requirement and good in stability, and can be applied to vertical, lateral and torsional multi-type low-frequency vibration control of various engineering structures.

The invention discloses a circular wooden column-hole-hidden graphite hardwood-graphite layer-along-column foundation stone seismic isolation system which is mainly used for seismic isolation and self-resetting of the bottom of a wooden structure circular wooden column. The shock insulation system is composed of a round wooden column, hole-hidden graphite hardwood, concave spherical surface belt limiting edge column foundation stone, a graphite layer and an annular tempered glass sealing plate. The hole-hidden graphite hardwood is composed of a convex spherical section, a thick cylindrical section, a graphite-hidden hole and a thin cylindrical connecting key which are integrally processed, and the thin cylindrical connecting key is inserted into the round hole in the bottom of the round wooden column to achieve positioning butt joint. The graphite layer can reduce the friction force between the convex spherical surface of the hole-hidden graphite hardwood and the concave spherical surface of the column foundation stone. The concave spherical surface of the column foundation stone enables the round wooden column to reset automatically after an earthquake, and the limiting edge of the column foundation stone can limit excessive displacement of the bottom of the round wooden column in the vibration process. And the annular toughened glass sealing plate can be sealed and waterproof. The seismic isolation system has the advantages of reducing the seismic action of an upper structure through bottom seismic isolation of the circular wooden columns and achieving structural toughness seismic resistance through self-resetting after an earthquake.

The invention relates to a negative Poisson's ratio composite anti-explosion wallboard unit, an anti-explosion wallboard structure and a construction method of the anti-explosion wallboard structure. The anti-explosion wallboard unit comprises an impact protection layer, a negative Poisson's ratio steel plate layer, a multifunctional back plate layer and a buffering energy absorption layer from outside to inside. The outer surface of the impact protection layer is an anti-impact wave curved surface; the negative Poisson's ratio steel plate layer is composed of two layers of negative Poisson's ratio steel plates which are arranged in parallel, a containing cavity is formed in each layer of negative Poisson's ratio steel plate, a plurality of rhombic negative Poisson's ratio units are evenly distributed in each containing cavity, and hinge joints are formed between the end points of the rhombic negative Poisson's ratio units and the inner wall of a cavity body of each containing cavity; the multifunctional backboard layer comprises a support body and an assembly space arranged along the back surface of the support body, and the assembly space is used for detachably embedding a functional board; and the buffer energy absorption layer is used for absorbing and dissipating residual energy attenuated by the layers. Through a multi-stage collaborative energy consumption mechanism of curved surface deflection, negative poisson ratio structure energy absorption, back plate dispersion and elastic body buffering, the anti-knock performance and the energy dissipation efficiency of the wallboard are remarkably improved.

The invention discloses a corrugated steel plate improved assembly type steel frame combination joint which comprises square steel pipes, a steel frame and a corrugated steel plate. The two groups of H-shaped steel beams are arranged, the adjacent H-shaped steel beams are detachably connected through connecting mechanism components, corrugated steel plates connected with the H-shaped steel beams through SMA bolts are arranged in the middles of the beam ends of the H-shaped steel beams located at the ends, corrugated steel plates connected with the H-shaped steel beams through welding are arranged on the two sides of the H-shaped steel beams through welding, and the corrugated steel plates and the side walls of the square steel tubes are fixed through welding; the side walls of the square steel pipes are located on the upper and lower sides of the end beams and are connected with gusset plates on the joint parts of the H-shaped steel beams through rotating assemblies connected with SMA rods; and when the SMA rod and the corrugated steel plate are damaged, a new force transmission path can be formed in a node area to prevent progressive collapse while the functions of shock absorption, energy consumption and self-resetting are achieved. Reinforcing pieces are arranged at the beam ends and comprise corrugated steel plates, and the corrugated steel plates are arranged at the connecting joints of the two H-shaped steel beams.

The utility model discloses a horizontal vibration isolation and vertical vibration isolation decoupling vibration and vibration double-control support which comprises a vertical vibration isolator and a horizontal vibration isolation device, the vertical vibration isolator and the horizontal vibration isolation device are connected in series up and down, and the vertical vibration isolator is located on one side of the horizontal vibration isolation device. Only the vibration isolation spring is arranged between the upper cover plate and the lower cover plate in the vertical vibration isolator, and a horizontal limiting device does not exist between the upper cover plate and the lower cover plate, so that the vertical vibration isolator has a multidirectional movement trend; the horizontal rigidity of the vibration and shock double-control support is smaller than that of a friction pendulum shock insulation support, the vibration and shock double-control support has the function of energy consumption in the horizontal direction, and when the vibration and shock double-control support is applied to a subway upper cover building or corridor shock insulation structure, abrasion of the support under temperature deformation of a building or a corridor can be effectively reduced; when the device is applied to the corridor, vibration of the corridor under wind-induced or human-induced loads can be effectively reduced.

The utility model relates to a sliding shock insulation modular building which comprises a module group forming a building main body. The building foundation is used for bearing the module group; the sliding layer is arranged between the module group and the building foundation and comprises an upper sliding interface and a lower sliding interface which are fixedly connected with the bottom of the module group and the top of the building foundation respectively, and a sliding medium arranged between the upper sliding interface and the lower sliding interface; and the sliding starting control part is connected with the module group and the building foundation and is used for controlling the sliding starting state. Compared with the prior art, the earthquake response of an upper modular building can be reduced, non-structural members in the modules can be protected, the module units are lighter in design, the connection between the adjacent modules is simpler, and the connecting structure adapts to the characteristics of various layouts and stress; the anti-seismic performance of the modular building is improved through simple sliding seismic isolation measures which are low in manufacturing cost and convenient to construct.

The invention discloses a vibration isolation building horizontal force transmission device, belongs to the technical field of civil engineering, and aims to solve the problems of an existing underground structure horizontal force transmission device. Comprising a mirror surface stainless steel plate and a steel box, a plurality of inner anchor bars are arranged on one side of the mirror surface stainless steel plate, a sliding block set is arranged on the other side of the mirror surface stainless steel plate, a plurality of outer anchor bars are arranged on one side of the steel box, a notch is formed in the other side of the steel box, a retainer is arranged in the notch, and the retainer and the stainless steel plate are oppositely arranged; a vertically-arranged sliding groove set and a plurality of segment-shaped notches are formed in the end face of the side, facing the stainless steel plate, of the retainer, the balls are arranged in the notches in a one-to-one correspondence and rolling mode and abut against the stainless steel plate in a rolling mode, the sliding block set is in sliding fit with the sliding groove set, the inner anchor bar is embedded in the edge beam, and the outer anchor bar is embedded in the outer wall. Vertical sliding is allowed between the outer force transmission piece and the inner force transmission piece, horizontal force transmission can be achieved, and the vibration reduction and isolation effect of the vibration isolation system is not affected.

The utility model discloses a horizontal displacement measuring device for a building shock insulation support, and relates to the technical field of horizontal displacement measurement of shock insulation supports. The device comprises a base, a displacement measurement assembly and a photoelectric measurement assembly, the right side of the base is fixedly connected with a supporting frame, the top of the supporting frame is fixedly connected with a detection table, the displacement measurement assembly comprises a first grating sensor, and the top of the first grating sensor is fixedly connected with a movable plate. The horizontal displacement distance and direction of the shock insulation support can be measured through the displacement measuring assembly, and the upper connecting plate and the lower connecting plate move in a staggered mode when the shock insulation support moves, so that the fixing frame and the base move. The displacement distance and the displacement direction of the shock insulation support are measured through the first grating sensor and the second grating sensor, the fixing frame and the base are limited through the telescopic mechanism in the horizontal displacement process of the shock insulation support, and the measurement effect and the accuracy of measurement data are improved.

The invention relates to the technical field of bridge vibration reduction, in particular to a double-spring frequency conversion lever tuned mass damper device and a regulation and control method. The double-spring frequency conversion lever tuned mass damper device comprises a base, a lever, a mass block, a first spring and a second spring. Wherein the base is used for being connected with a to-be-damped structure; the middle of the lever is rotationally connected with the base; the mass block is arranged on the lever and located on one side of the base. The first spring and the second spring are located on the two sides of the base respectively, connected with the lever or abut against the lever and used for balancing the gravity of the mass block, and the first spring is located between the mass block and the base. The problems that in the prior art, when the spring end stress and the mass block end stress are amplified in a lever proportion, the pin shaft stress is too large, damping is too large, debugging is difficult, the pin shaft and a lever need to be thickened or made of special alloy, the manufacturing cost is increased, and potential safety hazards are possibly caused by material fatigue are solved.

The invention relates to the technical field of constructional engineering equipment, in particular to a rigidity and energy dissipation adjustable composite energy dissipation bearing device which comprises a first connecting plate, a second connecting plate, a first damping part and a second damping part. The first damping piece is arranged on the first connecting plate on the column body in a friction sliding mode, and the second damping piece is connected between the beam body and the first damping piece in an included angle mode, so that the flexural rigidity of the beam-column joint can be effectively improved under the action of frequent earthquakes, and the initial rigidity and lateral displacement resistance of the structure are enhanced; the rigid response performance of the structure under the action of small earthquakes is improved; the second damping piece can adjust the energy dissipation path through the change of the included angle between the length direction of the second damping piece and the axis of the column body in the earthquake action process, the friction sliding mechanism of the first damping piece is matched, the energy dissipation capacity of the joint under the earthquake action is effectively improved, and therefore structural stress concentration is reduced, and structural damage is delayed. The structure is light in weight, convenient to install and wide in application range.

To set specifications while suppressing antiresonance in a vibration control device having a plurality of tuned mass dampers.SOLUTION: A method for setting specifications of a vibration control device 10 having a plurality of tuned mass dampers 14 includes a step of assuming that the plurality of tuned mass dampers 14 are sequentially installed on a structural material 52, setting a natural frequency of the tuned mass damper 14 assumed to be first installed to a primary natural frequency of the structural material 52, and then obtaining a frequency of antiresonance generated by one or a plurality of tuned mass dampers 14 assumed to be previously installed; Is repeated.SELECTED DRAWING: Figure 6

The utility model relates to an enlarged type metal composite viscoelastic damper. The bottom of a metal damper is fixedly connected with an enlarged type viscoelastic damper. The metal damper comprises a T-shaped core plate, L-shaped restraining plates are fixedly connected to the two opposite sides of the T-shaped core plate in the vertical direction, friction areas are arranged between the tops, located on the vertical plane, of the L-shaped restraining plates and the T-shaped core plate, fixing areas are arranged between the bottoms of the L-shaped restraining plates and the T-shaped core plate, and energy dissipation webs are arranged on the portions, between the fixing areas and the friction areas, of the T-shaped core plate. The amplified viscoelastic damper comprises an upper connecting plate, an amplifying lever is hinged to the lower portion of the upper connecting plate, an inner steel plate is hinged to the lower portion of the amplifying lever, the inner steel plate is connected with an outer steel plate through a viscoelastic layer, and the outer steel plate is hinged to the amplifying lever through a fulcrum shaft. The defects of a metal damper can be overcome under small earthquakes, good energy consumption is achieved, the amplifying damper can be protected against excessive displacement and failure under large earthquakes, the damper consumes energy in a multi-stage mode, and the anti-seismic performance of the structure is improved. The components are connected through bolts, are highly assembled and are convenient to replace.

The self-adaptive staged energy consumption friction-shear yield composite damper comprises a friction energy consumption unit, an inner friction plate, an outer friction plate, at least two shear energy consumption units and an H-shaped steel plate, wherein the inner friction plate and the outer friction plate are located on the friction energy consumption unit, and the H-shaped steel plate is located at the tail end of the friction energy consumption unit and used for fixing the friction energy consumption unit. The prestressed bolt sequentially penetrates through the inner friction plate and the outer friction plate on the friction energy dissipation unit and the shear energy dissipation unit and is connected with the inner friction plate and the outer friction plate on the friction energy dissipation unit and the shear energy dissipation unit through at least one pair of linkage rods, and the two ends of the friction energy dissipation unit are connected to beam-column joints respectively. The linkage rod does not make contact with a linkage rod penetrating hole of the shearing energy dissipation unit during displacement, and only the friction energy dissipation unit works; and the linkage rods make contact with the linkage rod penetrating holes in a displacement mode, the shear energy dissipation devices are fixed, the shear plates are subjected to shear deformation, and the earthquake displacement response of the structure is effectively reduced through staged energy dissipation and the displacement amplification effect.

The invention belongs to the field of protective materials, and particularly relates to a 3D printing high-performance porous silicon carbide ceramic wave-absorbing material and a preparation method and application thereof. The extrusion type 3D printing technology is combined with the reaction sintering and impregnation technology, the complex structure forming and the high-performance wave absorbing effect are achieved, the material prepared through the method has excellent mechanical performance and wave absorbing performance at the same time (the bending strength is larger than 15 MPa, the reflection loss minimum value at the frequency band of 2-18 GHz is larger than-25 dB, and the absorption bandwidth is larger than 3 GHz), and the material has the good application prospect. The method is suitable for military stealth engineering and other fields.

The invention relates to the technical field of wind power towers, and discloses a concrete-filled steel tube truss type hybrid wind power tower which comprises a tower drum, a plurality of steel tube beams and a plurality of steel tube beams. The truss unit is suitable for supporting the tower drum; the transition unit is arranged between the tower drum and the truss unit so as to connect the tower drum with the truss unit; the bearing platform unit is arranged at the end, away from the tower drum, of the truss unit and suitable for bearing the truss unit; the truss unit comprises at least one pipe body, and concrete is poured in the pipe body. And the constraint stranded wires are tensioned in the axial direction of the pipe body and anchored to the transition unit and the bearing platform unit correspondingly, and the constraint stranded wires are at least arranged outside the pipe body. According to the concrete-filled steel tube truss type hybrid wind power tower, the constraint stranded wires are arranged outside the tube body, the situation that the cable penetrating process is complex and cannot be observed is avoided, the situation that the constraint stranded wires are mutually wound in the cable penetrating process is avoided, constructors can conveniently and directly observe the tensioning state outside, and it is ensured that prestress is accurately applied.

The invention discloses a vibration isolation support parameter dynamic correction method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining the vibration monitoring data of a building structure, carrying out the modal recognition based on the vibration monitoring data, obtaining the actual measurement modal parameters of the building structure, building a building structure finite element model containing a vibration isolation support, and carrying out the dynamic correction of the vibration isolation support. The vibration isolation support is simulated in a building structure finite element model by using a support unit with an initial rigidity parameter set according to a preset standard, the actual rigidity parameter of the vibration isolation support is inversely identified by adjusting the rigidity parameter value of the support unit and performing finite element calculation based on an actually measured modal parameter as a target, and the actual rigidity parameter of the vibration isolation support is calculated according to the actual rigidity parameter of the vibration isolation support. And establishing a time-varying stiffness model of the vibration isolation support according to the actual stiffness parameter and the change rule of the actual stiffness parameter along with time, and dynamically updating the stiffness parameter of the support unit in the building structure finite element model by using the time-varying stiffness model to obtain the updated stiffness parameters at different time points so as to predict the performance degradation trend of the vibration isolation support.

The torsional energy dissipation damper with the limiting function comprises torsional pipe assemblies and connecting rod assemblies, the torsional pipe assemblies are arranged at the positions of corresponding external main structures, and each connecting rod assembly comprises an external connecting rod component connected between the corresponding torsional pipe assembly and the corresponding external main structure and a middle connecting rod component connected between the corresponding torsional pipe assembly. The pipe twisting assembly comprises a main pipe twisting part and auxiliary pipe twisting parts, the main pipe twisting part comprises a main twisting pipe and a twisting arm fixedly connected to the end of the main twisting pipe, the auxiliary pipe twisting parts comprise auxiliary twisting pipes and a bending moment resisting center shaft, and the auxiliary twisting pipes are arranged at the two ends of the twisting arm. The torsion arm and the middle connecting rod component are both fixedly connected to the auxiliary torsion tube, the middle of the bending moment resisting center shaft is arranged in the auxiliary torsion tube in a penetrating mode, and the external connecting rod component is rotatably arranged at the end of the bending moment resisting center shaft in a sleeving mode. The damping device has the advantages of improving the damping effect, avoiding structural instability and the like.

The invention relates to the technical field of assembly type column base nodes, in particular to a high-bearing-capacity assembly type steel structure column base node which comprises an upper bottom plate, a lower bottom plate and a buckling-restrained energy consumption plate, an upper energy consumption plate is fixed to the bottom of the upper bottom plate, and a lower energy consumption plate is fixed to the top of the lower bottom plate. Buckling-restrained energy dissipation plates which are spaced left and right are fixed between the upper energy dissipation plate and the lower energy dissipation plate, and the upper bottom plate, the upper energy dissipation plate, the lower energy dissipation plate and the lower bottom plate are fixedly installed together through at least four extension anchor bolts with the lower ends pre-embedded in a foundation. The structure is reasonable and compact, and the rigidity and the bearing capacity of the joint are regulated and controlled by changing the thickness of the middle buckling-restrained energy consumption plates and the thickness of the inner energy consumption plates, so that the high bearing capacity performance target is achieved. Under the action of an ultra-large earthquake, the extension anchor bolt on the outermost side yields firstly, then yields the buckling-restrained energy dissipation plate, and finally yields the internal energy dissipation plate, so that a multi-stage energy dissipation system in a plastic stage is formed, and the anti-seismic property of the structure is effectively improved.

The invention discloses an interface enhanced composite shear wall based on a high-ductility cement-based material. The high-ductility cement-based composite materials are formed in edge constraint areas on the two sides of the shear wall, and the common concrete is formed in a core area in the middle of the shear wall. The interface separation net is a high-strength ribbed non-dismantling formwork net and is vertically arranged at the junction of the edge constraint area and the core area, the section of the interface separation net is in a periodic concave-convex wave shape or a stepped shape, and a macroscopic mechanical meshing interface is formed. The interface seaming ribs are U-shaped ribs and are horizontally arranged at the positions of the inter-rib slurry penetrating nets of the interface separation net in a penetrating mode, one ends of the interface seaming ribs are anchored to the edge constraint area common steel bars, and the other ends of the interface seaming ribs extend into the core area and are connected with longitudinal and transverse rib cross joints of the composite material grid ribs in a hooked mode; the problems of rigidity mutation and slippage of the heterogeneous material interface are solved by utilizing the geometric occlusion effect of the interface separation net and the anchoring effect of the deep bolt pins and joints of the interface sewing ribs, cooperative work of a high-ductility material and common concrete is achieved, and good anti-seismic performance is achieved.

The present disclosure provides a multi-stage buckling-restrained brace device. The device comprises the parallel cores system, load-transfer system, and restrainer system. The parallel cores system consists of the energy dissipation component, placed between the two supporting plates. The load-transfer system consists of the first and second supporting plates, which are spaced along a specific direction. The restrainer system consists of the restraining component, which prevents buckling of the energy dissipation component under compression. The restraining component includes a first sliding plate, a second sliding plate, a first connecting component and a second connecting component, while the energy dissipation component includes a first core plate and several high-stage core plates. The first sliding plate is fixedly connected to both the first core plate and the first supporting plate, and the second sliding plate is fixedly connected to both the first core plate and the second supporting plate. The two ends of the high-stage core plates are respectively spaced from the first supporting plate and the second supporting plate to form adjustable gaps. The present disclosure can adaptively meet both the load-bearing capacity and energy dissipation demands under different levels of external excitation.

The invention belongs to the technical field of structural engineering, and relates to a self-resetting lateral force resisting module suitable for a beam through type frame. According to the technical scheme, a rotating support is an obtuse-angle triangular frame composed of an inclined support and a horizontal beam, the obtuse-angle top of the obtuse-angle triangular frame is hinged to the bottom of an upper-layer main beam of a beam-through type frame, and the center of the horizontal beam of the obtuse-angle triangular frame is connected with a thorn ring-disc spring reset system; the acute angle of the obtuse triangle frame is connected with an inner wedge-shaped plate-disc spring reset system and an outer wedge-shaped plate-disc spring reset system; the viscoelastic damping groove is connected to the lower portion of the horizontal beam and located between the thorn ring-disc spring reset system and the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system. The bottoms of the thorn ring-disc spring reset system, the viscoelastic damping groove, the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system are fixedly connected with the upper portion of a lower layer main beam of the beam through type frame. The characteristics of a beam through type steel frame are fully matched, and the weak layer effect of the beam through type steel frame in the application of a high-rise building structure in the background technology is solved.

The utility model relates to the technical field of damping equipment, in particular to an electromagnetic damping device adopting a halbach permanent magnet array. The method is specifically applied to civil engineering building damping. Comprising a protective shell, and a spring unit, an electromagnetic damping unit and an inerter mass unit are arranged in the protective shell; the electromagnetic damping unit, the inerter mass unit and the spring unit are located on the left side and the right side of the protective shell respectively. According to the electromagnetic damping device adopting the halbach permanent magnet array, relative movement between the halbach permanent magnet array and a conductor is adopted to generate damping force, a mass flywheel and a spring are connected in combination with a gear rack, and mechanical energy is dissipated by generating huge inertial mass and utilizing reciprocating movement of the spring and generating eddy current damping force. According to the device, the spring unit, the inerter unit and the electromagnetic damping unit can operate together through vibration at any end, mechanical energy is consumed, and the purpose of damping is achieved.

A green energy-saving cold store is provided, including a cold room, a platform, a machine room, and a refrigerating system. A drying layer (1) is arranged below the first floor of the cold room; a ground heat insulation layer (2) is moved downwards into the drying layer (1) and is separated from a first floor slab (3); an inner wall (4), an internal partition wall, and the wear-resistant waterproof floor (33) are directly located on the first floor slab (3) and integrated with a frame structure; a peripheral protective wall adopts a light steel structure wall surface (14), and is connected to the frame structure by means of ball joint tie beams (15) at the intersection points between frame beams and columns. The cold store is energy-saving and environment-friendly, and has good anti-seismic and fireproof performance.

The utility model relates to a vibration reduction technology in the field of vibration control of building structures, in particular to an open type modularized tuned mass damping system. The device comprises an embedded part, a frame, a mass block, a supporting beam, an adjusting spring, a damper, a lug plate, a friction plate, a pin shaft and a nut, the frame provided with the mass block serves as a mass module, the supporting beam and the adjusting spring jointly form a rigidity module, and a friction pair composed of the friction plate and the lug plate and the damper jointly form a damping module. When the floor slab generates vertical vibration due to external excitation, the nearby structural beams vibrate synchronously. The supporting beam provided with the mass module is connected to the structural beam through the friction damping pin shaft assembly. The structural beam vibrates to drive the mass module, and the supporting beam and the adjusting spring have the same vibration frequency and opposite directions. The damper between the mass module and the floor is enlarged in deformation due to reverse vibration, energy consumption is enhanced, and therefore vibration of the floor is relieved.

The invention discloses a novel multi-cavity double-steel-plate-UHPC composite structure and a construction technology, relates to the technical field of civil engineering structure materials and construction, and solves the problems that in the prior art, interface connecting pieces of a double-steel-plate-UHPC composite structure are not unified in design, and the engineering applicability is poor. According to the technical scheme, a perforated longitudinal partition plate is adopted to divide the space between double steel plates into multiple cavities, the perforated longitudinal partition plate is provided with flowing holes and reinforcing steel bar holes, and penetrating reinforcing steel bars penetrate into the reinforcing steel bar holes and are fixed to end plates through nuts, so that a standardized reinforcing steel bar-UHPC tenon connecting piece and a unified steel-concrete interface connecting mode are formed; meanwhile, pouring deformation is controlled through temporary tools of the constraint steel plates and the constraint pull rods to obtain a multi-cavity double-steel-plate-UHPC combined structure, the steel-concrete interface connection and combination effect is enhanced, the bending-shear-resistant mechanical property and the construction efficiency of the combined plate are improved, and a high-strength, high-toughness and simple-structure scheme is provided for engineering.

The invention belongs to the technical field of structural engineering, and discloses a function-separated self-resetting double-step energy dissipation support. According to the technical scheme, the function-separated self-resetting double-step energy dissipation support comprises a triangular support, two sets of pre-pressing disc spring resetting systems, two sets of double-step energy dissipation systems and a pin shaft support. The triangular support is located between the upper-layer frame beam and the lower-layer frame beam and comprises a vertical section at the top, inclined supports on the two sides and a horizontal beam at the bottom, the vertical section is hinged to the upper-layer frame beam, and the center of the horizontal beam is connected with the lower-layer frame beam through a pin shaft support; a pre-pressing disc spring reset system is arranged at the intersection of the horizontal beam and the inclined strut; the end part of the horizontal beam is connected with the lower-layer frame beam through a pre-pressing disc spring resetting system; the double-step energy dissipation system is arranged between the pin shaft support and the pre-pressing disc spring reset system and is close to the pre-pressing disc spring reset system. The double-order energy dissipation system is connected with a beam body of the horizontal beam and the lower-layer frame beam. The problems that in the prior art, an energy consumption system is invisible in damage and single in energy consumption are solved, and meanwhile daily maintenance and overhaul and rapid replacement after an earthquake are facilitated.

The invention provides an adjustable energy-consumption-enhanced anti-seismic reinforcing system between pavilion-type wooden column frames, which belongs to the technical field of ancient building wood structure reinforcement and comprises an adjustable cross beam reinforcing system between common battledore columns and an adjustable energy-consumption-enhanced reinforcing system between columns. The adjustable cross beam reinforcing system between the common patting square columns comprises two sets of connecting assemblies I and a wood cross beam connected with the two sets of connecting assemblies I; the inter-column adjustable energy consumption reinforcing system comprises two sets of connecting assemblies II and a dovetail tenon beam connected with the two sets of connecting assemblies II. Through the synergistic effect of the adjustable cross beam reinforcing system between the common battlecolumns and the adjustable energy consumption reinforcing system between the columns, the anti-seismic performance of the pavilion type wood structure is remarkably improved, and meanwhile the original self-resetting characteristic and the use function of the pavilion type wood structure are effectively reserved.