69 results about "Buckling-restrained brace" patented technology

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 earthquake toughness improvement of old buildings and earthquake response rapid calculation based on an artificial intelligence technology, and discloses a node for a BRB reinforced old reinforced concrete frame structure, a design method and an earthquake toughness improvement rapid evaluation method of the BRB reinforced old reinforced concrete frame structure. The joint comprises a frame structure beam column joint composed of a reinforced concrete beam component, a column component and a plate component, a buckling restrained brace, a high-strength bolt, a connecting plate, a cladding plate, a bottom plate and stiffening ribs. According to the connection node structure provided by the invention, the damage to the opening positions of the plate components is easier to control through the structure design compared with the damage to the opening positions of the beam and column components in the conventional connection node structure, and the integrity and the bearing capacity of the beam and column components serving as main bearing components of the structure are better protected. According to the probability-based earthquake toughness improvement evaluation method, the structural vulnerability is adopted as a comparison parameter, and the reinforcing effect of the buckling restrained brace on the structure is displayed more visually and more comprehensively through vulnerability control rate analysis.

This invention discloses a method and system for reinforcing old buildings in urban renewal, comprising the following steps: comprehensive diagnosis and performance evaluation of the old building; decision-making on the structural reinforcement system based on the performance evaluation results to obtain the optimal structural reinforcement system; reinforcement of key components and nodes of the old building according to the optimal structural reinforcement system; predictive maintenance of the reinforced old building through collaborative improvement and real-time monitoring; integration of three-dimensional laser scanning, finite element analysis, and various material performance testing technologies to accurately assess the current state of the building; and the use of high-performance composite mortar wire mesh, carbon fiber cloth, and buckling restraint braces to enhance the structural bearing capacity and seismic toughness. Simultaneously, combined with integrated structural-insulation design and long-term health monitoring, this method enhances safety while also considering energy conservation, environmental protection, and historical preservation, exhibiting significant advantages such as data-driven approach, toughness priority, functional synergy, and intelligent operation and maintenance. This invention is rationally designed, compact in structure, and easy to use.

The invention relates to a damping type composite partition wall construction method which comprises the following construction steps that embedded parts of buckling restrained brace members are installed, and installation of the embedded parts and steel bar formwork engineering of a main body frame structure are conducted synchronously; mounting a gusset plate and fixedly connecting the gusset plate with the embedded part; after the positions of the gusset plates are checked, hoisting equipment is used for transporting, hoisting and butting the buckling restrained brace members in a mode that the two ends are unequal in height; fixing the lower end of the buckling restrained brace member after the buckling restrained brace member is pulled in place, then fixing the upper end of the buckling restrained brace member in place, and welding a gusset plate after correction; carrying out nondestructive testing on the connection welding seam; after the buckling restrained brace component is installed, the upper wall body of the double-angle steel support is welded, the transverse tie bars of the wall body are tied in a full-length mode, and wall body building and wall body plastering and net hanging construction are conducted. The technical effects that the construction efficiency is improved, the installation quality of the buckling restrained brace component is guaranteed, and the integrality, stability and flatness of the wall are enhanced are achieved.

The invention belongs to the technical field of restrained braces, and particularly relates to a viscoelastic double-step all-steel buckling restrained brace which comprises an outer sleeve, two viscoelastic devices, a core plate and a limiting structure, the outer sleeve, the two viscoelastic devices and the core plate are arranged, and the two viscoelastic devices are embedded in the inner side and the outer side of the two ends of the outer sleeve respectively; the viscoelastic material can absorb and dissipate energy generated by earthquakes or wind loads through shear deformation, the vibration response of a structure body is effectively reduced, the anti-seismic performance of a building is improved, the core plate movably penetrates through the viscoelastic device and is arranged in the outer sleeve, the core plate is preliminarily restrained through the outer sleeve, and the anti-seismic performance of the building is improved. According to the limiting structure, the side plates and the multiple limiting plates are matched to limit the core plate, lateral displacement of the core plate can be limited, bending instability of the core plate in the stress process is prevented, it is ensured that the core plate is mainly subjected to axial deformation all the time, and the anti-seismic property of the viscoelastic device is fully exerted.

The application discloses a high-ductility fracture-free double-yield-point buckling-restrained brace with a cross-shaped steel negative Poisson's ratio core and a multi-storey or high-rise fabricated building, and the buckling-restrained brace comprises a cross-shaped steel first-order core, a corner steel second-order core, and corner steel peripheral constraints; the cross-shaped steel first-order core comprises a middle negative Poisson's ratio weakening area one in the middle of the cross-shaped steel; the corner steel second-order core comprises a middle negative Poisson's ratio weakening area two in the middle of the corner steel; the corner steel peripheral constraints comprise a middle pre-tightening area in the middle of the corner steel; four groups of the corner steel second-order core are respectively arranged at four corners of the cross-shaped steel first-order core; four groups of the corner steel peripheral constraints are respectively arranged at peripheries of the four groups of the corner steel second-order core and are pre-tightened in the middle pre-tightening area; the cross-shaped steel first-order core can produce a first displacement longitudinal sliding relative to the corner steel second-order core; the corner steel second-order core can produce a second displacement longitudinal sliding relative to the corner steel peripheral constraints; and the second displacement is greater than the first displacement. The application aims to solve the problems of the buckling-restrained brace, such as insufficient ductility, easy fracture and limited energy dissipation of the core under an earthquake.

The invention relates to a reverse friction buckling-restrained energy dissipation support and a control method, the reverse friction buckling-restrained energy dissipation support comprises a buckling-free energy dissipation unit, a forward constraint unit and a reverse constraint unit, and the forward constraint unit is arranged at one end of the buckling-free energy dissipation unit and is in sliding connection with the end of the buckling-free energy dissipation unit; the reverse constraint unit is arranged at the other end of the buckling-free energy dissipation unit and is fixedly connected with the end of the buckling-free energy dissipation unit; wherein the forward constraint unit and the reverse constraint unit are oppositely arranged, and when the support bears an axial load, the forward constraint unit and the reverse constraint unit respectively follow different end parts of the buckling-free energy dissipation unit to move in opposite directions, so that a reverse friction mechanism is realized. According to the reverse friction buckling-restrained energy dissipation support and the control method, the double-order yield of the buckling energy dissipation support is fused with the support limiting device, meanwhile, the friction force in the energy dissipation core of the buckling restrained support is self-balanced, the deformation uniformity of the support is improved, and therefore the fatigue performance is improved. The overall structure of the support is free of numerous external additional devices, low in manufacturing cost and convenient for engineering application.

The utility model discloses a replaceable buckling restrained brace device, particularly relates to buckling restrained brace technical field, including core material, reinforcing sleeve and packing layer, the packing layer is provided between core material and reinforcing sleeve, core material outer wall surface and reinforcing sleeve inner wall surface are both provided with the non-adhesive layer, the packing layer is provided with the non-adhesive layer. Fixing grooves are formed in the top and the bottom of the reinforcing sleeve, fixing covers are detachably connected into the two fixing grooves, through holes matched with the core material are formed in the tops of the two fixing covers, and the core material penetrates through the two through holes. The buckling restrained brace device is composed of the core material, the reinforcing sleeve, the non-bonding layer, the filling layer and the fixing cover, can resist slight earthquakes, medium-grade earthquakes, high-grade earthquakes and wind loads, can also serve as an efficient energy dissipation damper, reduces response of the structure in the earthquakes through energy dissipation, accordingly improves the anti-seismic performance of the structure, and reduces the construction cost. And the two fixing covers are disassembled, so that the core material is convenient to replace and the sleeve is convenient to reinforce.

The application relates to a self-resetting buckling restrained brace based on disc spring resetting and slope core plate energy dissipation, which comprises a shell, a slope core plate, a fixed restraint cover plate assembly, disc springs and a movable restraint cover plate assembly; the upper surface and the lower surface of the slope core plate are uniformly arranged with the movable restraint cover plate assembly, the inner side of the end part of the movable restraint cover plate assembly relative to the slope core plate is provided with a movable cover plate self-resetting slope, the movable cover plate self-resetting slope is matched and contacted with the core plate slope protrusion on the same side; the outer side of the end part of the movable restraint cover plate assembly relative to the slope core plate is provided with a plurality of disc springs; the fixed restraint cover plate assembly is installed between the core plate energy dissipation section and the movable restraint cover plate assembly on the upper surface or the lower surface of the slope core plate, the fixed restraint cover plate assembly is fixed with the shell covered outside the whole structure through a plurality of fixed cover plate bolts penetrating the movable restraint cover plate assembly on the same side. The application simplifies the structure and can automatically restore to the initial state after plastic deformation under external force.

This invention relates to the field of building engineering technology, specifically to a load-bearing-multi-stage energy-dissipating buckling-restrained brace composite damping component. It includes a connecting column and a bolt reinforcement assembly. The assembly includes a friction box fitted onto one end of the connecting column, with a first bolt threaded between the friction box and the connecting column. A reinforcement plate is slidably installed within the friction box; when there is relative displacement between the connecting column and the friction box, the reinforcement plate slides towards tightening the first bolt. The energy-absorbing reinforcement assembly includes a connecting plate connected to the other end of the connecting column, with an energy-absorbing box installed near the connecting plate end of the connecting column. A reverse pulling member is installed between the energy-absorbing boxes. By setting a bolt reinforcement assembly at the end of the connecting column, the bolt is reinforced using the relative displacement between the connecting column and the friction box. This not only absorbs vibrations but also converts that energy for bolt reinforcement. Furthermore, the energy-absorbing reinforcement assembly and the reverse pulling member further enhance the damping effect.

The present application relates to the technical field of support component, in particular to a kind of buckling-restrained brace component in the anti-seismic of venue;Including cross-shaped core component, four first angle steels, four second angle steels, external frame and two end covers, after first angle steel is placed in the inside of the right angle included angle of cross-shaped core component, second angle steel is placed in the inner side wall of first angle steel, external frame is clamped in the outside of second angle steel and first angle steel by the cooperation of first clamping slot and second clamping slot, after one of end covers is installed in the one end of external frame, concrete is filled in the outside of first concrete cavity and second concrete cavity, another end cover is arranged in the other end of external frame, the installation of buckling-restrained brace component is completed, cross-shaped core component, first angle steel, second angle steel, external frame and two end covers in the above structure are all processed in factory, precision is easy to control, so that it is more convenient when on-site construction.

The utility model provides a two-stage energy-dissipation buckling restrained brace which comprises a yield energy-dissipation component, a buckling restrained brace body and a buckling restrained brace body. The two ends of the yield energy-dissipation component are lead screw sections, and the middle of the yield energy-dissipation component is a buckling energy-dissipation section. The restraining sleeve is arranged on the yield energy dissipation component in a sleeving mode; the two connecting blocks are arranged on the two lead screw sections of the yield energy dissipation component in a sleeving mode correspondingly; the two friction energy dissipation modules correspond to the connecting blocks one to one and are installed in the connecting blocks, the two lead screw sections of the yield energy dissipation component are each sleeved with one friction energy dissipation module, the friction energy dissipation modules can be in friction with the connecting blocks in the connecting blocks and rotate, and relative rotation and axial relative movement exist between the lead screw sections and the friction energy dissipation modules; and the locking assembly is arranged in the connecting block and used for locking the friction energy consumption module so that the friction energy consumption module cannot rotate. The shock absorption efficiency of the structure can be improved, the engineering economy is optimized, and the design targets of shock and vibration double control and efficient shock absorption are achieved.

The utility model provides a hoisting device for a buckling restrained brace. The hoisting device comprises a fixed plate, a fixed lifting lug, two mounting support arms, two sliding structures, two sliding rods, two locking mechanisms, two adjustable lifting lugs and three hoisting hoists, the two mounting support arms are symmetrically arranged at the left end and the right end of the fixing plate, the section of each mounting support arm is L-shaped, an opening of each mounting support arm faces downwards, the end of each mounting support arm is fixedly connected with the fixing plate, the fixing lifting lug is arranged in the middle of the fixing plate, and the left end and the right end of the fixing plate are each provided with a long-strip-shaped hole used for being connected with a buckling restrained brace. According to the hoisting device for the buckling restrained brace, the problems that the brace cannot be accurately positioned and the stability and the safety of the whole structure are influenced due to the fact that a hoisting chain for fixing the brace in the prior art is lack of adjusting capacity are solved.

The utility model relates to the field of anti-seismic devices, in particular to a multi-order buckling restrained brace device and an anti-seismic building. The multi-order buckling restrained brace device comprises an outer restrained component, a filler and an energy-consuming inner core. The outer restraining component is arranged outside the energy dissipation inner core in a sleeving mode, and the two ends of the energy dissipation inner core extend out of the outer restraining component. The space between the outer constraint component and the energy consumption inner core is filled with the filler. The energy consumption inner core comprises a first inner core plate and a second inner core plate, and the first inner core plate is connected with the second inner core plate; the first inner core plate has first yield strength, and the second inner core plate has second yield strength. According to the multi-order buckling restrained brace device, the multi-order buckling restrained brace energy dissipation and shock absorption design is adopted, multiple times of yielding can be achieved, and therefore the staged energy dissipation effect of small earthquakes, medium earthquakes and large earthquakes can be achieved, a main body structure can be well protected, the main body structure can be prevented from being seriously damaged in the small earthquakes, the medium earthquakes and the large earthquakes, and the service life of the main body structure is prolonged. And convenience is brought to post-earthquake repair.

The invention relates to the field of structural engineering aseismic design, and particularly discloses a buckling restrained brace steel frame aseismic design method based on horizontal sharing rate optimization, which comprises the following steps: establishing a parameterized analysis model taking a horizontal sharing rate beta as a variable, carrying out elastic-plastic dynamic time-history analysis, and extracting whole-process response data; the method comprises the following steps of: calculating an instantaneous equivalent horizontal sharing rate beta (t) representing dynamic evolution of internal force distribution and a stability index of the instantaneous equivalent horizontal sharing rate beta (t), and finally, performing multi-objective optimization solution on beta by taking the stability index and at least one other performance index as an optimization objective, so as to obtain a horizontal sharing rate design value with optimal robustness, and finish the design of the section of the component according to the horizontal sharing rate design value. According to the method, quantitative evaluation and active optimization of the stability of the force distribution path in the whole period of the structure under the action of an earthquake are realized, and the anti-seismic robustness, the collaborative energy consumption efficiency and the comprehensive economy of the buckling restrained brace steel frame are improved.

The utility model discloses a self-adaptive buckling restrained brace bearing structure, which relates to the technical field of building, and comprises an internal core material and an adjusting component, a square sleeve is arranged on the outer side of the internal core material, concrete filler is filled in the square sleeve, a sealing plate is arranged on the outer side surface of the square sleeve, and the adjusting component is arranged on the outer side surface of the square sleeve. The surface of the sealing plate is in threaded connection with a fixing bolt, the adjusting assembly is arranged on the upper side of the sealing plate, and the adjusting assembly comprises a fixed limiting rod, a movable limiting rod, a cross-shaped sliding sleeve, a connecting plate, a threaded fixing hole, a threaded fixing bolt and a fixing nut. According to the self-adaptive buckling restrained brace bearing structure, the length of the self-adaptive buckling restrained brace bearing structure can be adjusted according to actual mounting requirements through the adjusting assembly, so that the self-adaptive buckling restrained brace bearing structure can adapt to the actual mounting condition on site and can be suitable for different use positions, and the self-adaptive buckling restrained brace bearing structure can be quickly and stably mounted through the mounting assembly; and the mounting angle can be flexibly adjusted to adapt to different mounting positions.

The application provides a one-word peanut hole net inner core double-yield-point perforated pull joint type fabricated buckling restrained brace and a multi-story or high-rise fabricated building. The buckling restrained brace comprises: a one-word steel first-order inner core, a one-word steel second-order inner core, and a channel steel peripheral restraint. The one-word steel first-order inner core comprises a middle peanut hole net weakening area one in the middle of the steel. The one-word steel second-order inner core comprises a middle peanut hole net weakening area two in the middle of the steel. The channel steel peripheral restraint comprises a middle restraint area in the middle of the channel steel. The two sets of channel steel peripheral restraints, the two sets of one-word steel second-order inner cores and the two sets of one-word steel first-order inner cores are fixed by high-strength bolt perforation pull joints from outside to inside. The one-word steel first-order inner core can produce a first displacement longitudinal sliding relative to the one-word steel second-order inner core. The one-word steel second-order inner core can produce a second displacement longitudinal sliding relative to the channel steel peripheral restraint. The application realizes double-stage energy dissipation through the first-order and second-order negative Poisson's ratio energy dissipation inner cores, and effectively improves the mechanical properties of the support.

The application discloses a metal energy dissipation support, which comprises an outer sleeve connecting end, an inner core rod connecting end and at least one set of energy dissipation modules; the energy dissipation module comprises an outer sleeve and an inner core rod, the inner core rod is provided with a metal energy dissipation plate, the inner wall of the outer sleeve is provided with an energy dissipation limiting component, the inner core rod is arranged in the outer sleeve, and the metal energy dissipation plate on the inner core rod is in limiting cooperation with the energy dissipation limiting component on the inner wall of the outer sleeve; the outer sleeve connecting end is connected with one end of the outer sleeve and forms a certain gap between the inner core rod in the outer sleeve; the inner core rod is connected with the inner core rod in the other end of the outer sleeve and forms a certain gap between the other end of the outer sleeve. The metal energy dissipation support can effectively comprehensively integrate the advantages of traditional metal dampers and buckling restrained braces by adopting the energy dissipation support form and the mode of dissipating seismic energy through metal bending deformation, and is modularized and assembled, so that the practicability is greatly improved.

The utility model discloses a parallel type double-order buckling restrained brace which comprises a main core material and an auxiliary core material, restrained steel pipes are arranged on the outer sides of the main core material and the auxiliary core material in a sleeved mode, end plates are arranged at the ends of the restrained steel pipes, limiting assemblies are arranged at one ends of the main core material and the auxiliary core material, and the main core material and the auxiliary core material are matched with the limiting assemblies to move. When an earthquake occurs, the main core material deforms and slightly deforms due to pressure or tensile force brought by a building, the main core material yields energy consumption and enters a first-stage yield, and after a certain displacement is exceeded, the auxiliary core material yields energy consumption due to stress and enters a second-stage yield. The device is simple in structure, high in energy consumption efficiency and high in rigidity and bearing capacity, and the problems that in the prior art, the structure is complex, cost is too high, and the application scene is limited are effectively solved.

To provide a buckling restrained brace capable of reliably restraining the buckling of a core material and improving manufacturability. [Solution] The buckling restraint brace is a buckling restraint brace that is attached to a structure and comprises a core material that includes non-plasticized portions at both ends and a plasticized portion in the center, a stress transmission material that closely surrounds the core material, and a global buckling restraint material that surrounds at least a portion of the stress transmission material, wherein the global buckling restraint material is not a steel pipe.

The invention belongs to the technical field of building structures, and discloses a buckling restrained brace wall structure which is mainly used for solving the problem that a conventional buckling restrained brace structure and a partition wall structure cannot be fused into a whole. A conventional buckling restrained brace structure is optimized to form a partition wall structure, in terms of an energy dissipation mechanism, the thin-wall grid inner core serves as a core yield energy dissipation component, the energy dissipation effect is achieved through self yield deformation when the thin-wall grid inner core is stressed, the connecting frames serve as circumferential restraining units of the connecting frames, and the energy dissipation effect is achieved. The transverse force bearing plates and the vertical force bearing plates are used as lateral constraint units to limit the yield degree of the thin-wall grid inner core, so that the thin-wall grid inner core can still keep stable mechanical properties under large yield deformation; and in terms of a supporting mechanism, a three-in-one force bearing structure of the connecting frame, the thin-wall grid inner core and the vertical force bearing plate is presented, so that the bearing capacity of the wall body structure is ensured.

The invention relates to the technical field of buckling damping, in particular to a buckling restrained brace device which comprises an energy consumption core material and embedded blocks, the embedded blocks are arranged at the two ends of the energy consumption core material, connecting blocks connected with the energy consumption core material are arranged on the faces, close to the energy consumption core material, of the embedded blocks, and guide assemblies are further arranged at the two ends of the energy consumption core material correspondingly. The guide assembly comprises a first splicing block, a second splicing block, a connecting rod and a C-shaped fixing ring. After the faces, close to each other, of the first splicing block and the second splicing block are spliced, a gap between the first splicing block and the second splicing block is connected with the energy consumption core material in a clamped mode. The guiding effect can be provided for connection of the energy consumption core material and the embedded block, the inclination condition of the energy consumption core material is avoided, and the installation difficulty is reduced.

The invention discloses a buckling restrained brace embedded part installation method, and relates to the technical field of building embedded parts, and the buckling restrained brace embedded part installation method comprises the following steps: S1, storage: sequentially placing embedded parts in a storage channel for accumulation, placing a counterweight lower pressing block at the top end of the uppermost embedded part, then moving to one side of a preset installation position by using a moving seat, and placing the embedded parts in the storage channel for storage; and S2, positioning is conducted, specifically, a light irradiation lamp emits light downwards to irradiate the installation mark, the light penetrates through a light transmitting hole, so that an inverted image of the installation mark irradiates the ground, the position of a movable base is adjusted, and the movable base is aligned to the preset installation position. And then the rotary conveying disc rotates in the hollow round frame, so that the conveying cavity correspondingly communicates with the bottom of the storage channel, the embedded part on the lowest portion in the storage channel can fall into the conveying cavity and then rotate along with the rotary conveying disc, manual carrying and lifting of the embedded part are not needed, the workload during installation is reduced, and the installation mode is simple and convenient.

The utility model provides a buckling restrained brace device, and belongs to the technical field of building structures. The buckling restrained brace device comprises a fixing assembly and a connecting assembly, a mounting frame is matched with a supporting column, a connecting seat, a rotating seat and a hinge seat to play a bearing role in a building structure, and when the building structure is in an earthquake, the supporting column in the mounting frame generates a high-order yield form when being pressed, so that the supporting column is prevented from falling off. The ultimate bearing capacity of the buckling restrained brace is further improved, a connecting base, a rotating base and a hinge base at the two ends of a supporting column can be extended by fixing a first bolt in threaded holes in different positions till the connecting base, the rotating base and the hinge base move to proper positions, and then the hinge base and an installation frame are fixed; due to the fact that the rotating base is rotationally connected with the hinge base, the mounting angle of the supporting column can be adjusted, the length of the supporting column can be adjusted conveniently, meanwhile, the mounting angle of the supporting column can be adjusted conveniently, the supporting column is suitable for mounting frames of different sizes, and practicability is improved.

To provide a buckling-restrained brace that can effectively suppress the separation of restraining members even when the tensile force acting on the fasteners connecting the pair of restraining members during higher-order buckling of the core material causes the restraining members to separate. [Solution] The buckling-restraining brace 100 has a steel plate-shaped core material 10 and a wooden restraining body 20 formed by a pair of restraining members 30. The outer circumferential surface 31 of one restraining member 30A is provided with a plurality of countersunk grooves 34, and a first through hole 38 is provided that extends from each countersunk groove 34 to the contact surface 32. A lag screw bolt 50, equipped with male threads 51 and female threads 52, is embedded in the other restraining member 30B from the contact surface 32 to the interior, and a plurality of fasteners 60 are inserted through the corresponding first through holes 38 and screwed into the female threads 56.

Disclosed in the present invention are an anti-seismic component with dual functions of energy consumption and load bearing, and a buffer. The anti-seismic component includes a core shaft, wherein the core shaft is connected to a first support member and a second support member; an overhanging section of the first support member and an overhanging section of the second support member are respectively arranged on two sides of the core shaft; and an included angle between the first support member and the second support member is less than 180°. The component can be directly used as an inclined brace component of a building frame structure, and uses a circular tube torsional energy consumption mode to replace an axial tension and compression energy consumption mode of a traditional BRB component, thereby eliminating the problem of compressive buckling of a support component and simplifying the structure of a steel structure energy-consumption inclined brace; and there is no need for an external restrain component, thereby reducing steel consumption, avoiding filling with mortar, effectively shortening an installation period, improving the reliability of the component, and greatly reducing the manufacturing cost of the component. Therefore, the component has wide application prospects.

The invention relates to the technical field of building earthquake resistance, and particularly discloses a hidden structure type connecting mechanism and a double-order buckling restrained brace device comprising the same, the hidden structure type connecting mechanism comprises a sleeve and a core plate penetrating through the sleeve, and further comprises two sets of reinforcing units which are installed at the two ends of the core plate respectively and located in the sleeve, and the two sets of reinforcing units are connected with the sleeve. The two sets of stiffening structures are fixedly installed on the two opposite side walls of the sleeve correspondingly, and the sleeve is in sliding fit connection with the corresponding reinforcing units through the stiffening structures; the core plate is designed to be of the gradient structure with the yield strength of the two ends lower than that of the middle, the ends of the core plate drive the stiffening ribs to slide along the stiffening plates to dissipate energy during small earthquakes, the middle of the core plate can fully yield along the reserved gap after the supporting mechanism relieves constraint during large earthquakes, and cooperative control over double-stage energy dissipation and structural rigidity is achieved.

To easily perform adjusting work of the length of a brace type member for adapting to an installation place, when installing the brace type member manufactured in a production facility on a brace of a column-beam frame in a construction site.SOLUTION: A braced member (excluding a buckling restrained brace) manufactured at a production facility. The installation structure for the brace-type structure has a pair of frame-side joint portions where the frame and the brace-type member are joined to each other. The brace-type member includes a first member and a second member that are divided between the pair of frame-side joints, and a splice member that connects the first member and the second member and is joined by a bolt, and one of a spliced member-side bolt hole on a side of a spliced member that is the first member and the second member and a spliced member-side bolt hole on a side of the spliced member is a long hole.SELECTED DRAWING: Figure 2

The novel self-resetting buckling restrained brace device comprises a core material and a sleeve, the sleeve comprises an outer sleeve and an inner sleeve, the outer sleeve and the inner sleeve are each provided with two strip-shaped limiting holes which are arranged at intervals, movable rods are movably installed in the strip-shaped limiting holes, the two movable rods are connected through an SMA stranded wire, and the inner sleeve is connected with the outer sleeve. The core material is connected with the sleeve through a connecting piece; the utility model has the advantages that the inner sleeve is movably connected in the outer sleeve, and the inner sleeve is reset relative to the outer sleeve through the movable rod and the SMA stranded wire, so that the reset of the yield core section is driven to be realized.