CN205224327U - Draw and suppress one -way buckling restrained brace device of weak type - Google Patents

Draw and suppress one -way buckling restrained brace device of weak type Download PDF

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Publication number
CN205224327U
CN205224327U CN201520843021.XU CN201520843021U CN205224327U CN 205224327 U CN205224327 U CN 205224327U CN 201520843021 U CN201520843021 U CN 201520843021U CN 205224327 U CN205224327 U CN 205224327U
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CN
China
Prior art keywords
junction plate
restrained brace
buckling restrained
pull rod
flange junction
Prior art date
Application number
CN201520843021.XU
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Chinese (zh)
Inventor
邢国雷
李元齐
刘军良
徐宗亚
陈矛
王勇奉
崔烨
何建涛
庞方滕
Original Assignee
国核电力规划设计研究院
同济大学
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Application filed by 国核电力规划设计研究院, 同济大学 filed Critical 国核电力规划设计研究院
Priority to CN201520843021.XU priority Critical patent/CN205224327U/en
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Publication of CN205224327U publication Critical patent/CN205224327U/en

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Abstract

The utility model relates to a draw and suppress one -way buckling restrained brace device of weak type sets up in the major structure for the direction of collapsing of control body structure in the earthquake, this strutting arrangement includes buckling restrained brace subassembly, last flange connecting plate, descends flange connecting plate and reinforcing pull rod, reinforcing pull rod and buckling restrained brace subassembly the lower extreme respectively with flange connecting plate fixed connection down, the upper end and the last flange connecting plate fixed connection of buckling restrained brace subassembly, the upper end of reinforcing pull rod is equipped with the screw thread to pass flange connecting plate, the screw thread overcoat be equipped with the nut, last flange connecting plate and lower flange connecting plate respectively with major structure fixed connection. Compared with the prior art, the utility model has the advantages of control collapse direction, simple structure, with low costs.

Description

One is drawn and is suppressed the unidirectional buckling restrained brace device of weak type
Technical field
The utility model relates to Anti-quake Architectural Structure Design field, especially relates to one and draws and suppress the unidirectional buckling restrained brace device of weak type.
Background technology
Early stage earthquake engineering worker is in order to alleviate and avoid earthquake disaster, study and formulated a set of comparatively complete Struture Earthquake Resistant Theory and method, by carrying out the Seismic Bearing Capacity checking computations under frequently occurred earthquake to structure and the elastic-plastic deformation checking computations under rarely occurred earthquake ensure structural seismic performance, the Seismic Design Requirements of " no damage in small earthquake, middle shake can be repaiied, shake greatly less than " reaching.Traditional method of seismic design method ensure that supporting capacity and the ductility of structure to a great extent by the anti-seismic performance strengthening structure itself, can alleviate structural deterioration and casualties when coming earthquake.But because the method is by the dissipation seismic energy of structure own, and the data information of traditional design method comes from the summary that a situation arises of earthquake in history, so when being still not clear the intensity of Future Earthquakes disaster and characteristic, the structure traditionally designed lacks capacity of self-regulation, probably cannot meet the requirement of safety.
Structural seismic control is the comparatively obvious antidetonation approach of current effect, and concrete grammar by adding control device, device and structure is consumed energy jointly, to alleviate the earthquake response of structure, reaches the object avoided or postpone agent structure and destroy.Passive Control is be suggested the earliest and is be considered to the most at present and the control method the most easily implemented, and it comprises base isolation and energy-dissipating and shock-absorbing two class mode.This control method of energy-dissipating and shock-absorbing allows seismic energy toward structure transmission, but in superstructure, be provided with specific energy-dissipating device (damper), be transferred to energy-dissipating device to dissipate the seismic energy major part of agent structure consumption originally should be had, greatly alleviating structure self due to plasticity consumes energy the damage produced, effectively avoid structure major injury occurs in earthquake and collapses, therefore this technology has good economy and application prospect.
Anti-buckling support is widely used in structural seismic control at present as a kind of novel special damper, has good anti-seismic performance and very strong engineer applied.Anti-buckling support is a kind of support form having common support and metal yield energy-consumption damper dual-use function concurrently, not only solve common support causes structure to form the problem of weak floor after easy compressive buckling and flexing under large shake, also play the effect of Damage Coutrol simultaneously, make originally to be changed into by the power consumption mode of agent structure beam-ends formation plastic hinge (damage) to concentrate power consumption on anti-buckling support component, and agent structure major part keeps elasticity, thus agent structure (beam can be protected preferably, post) make it in the middle of large shake from major injury, the anti-seismic performance not only increasing structure solves again the rear problem of repairing of shake.
Three levels that China current aseismic fortification objects adopts " no damage in small earthquake, middle shake can be repaiied, shake greatly less than ", should be able to ensure when being subject to rarely occurred earthquake effect not collapse according to this claimed structure.According to the earthquake that " seismic design provision in building code " (GB50011-2010) rarely occurred earthquake is 1700-2500 mono-chance, specification gives horizontal earthquake influence coefficient and specifically considers rarely occurred earthquake effect, but this coefficient be draw according to statistical value can not ensure that Future Earthquakes intensity is no more than this value, when therefore calculating the Antiseismic building of particular importance, horizontal earthquake influence coefficient value should be higher.Rarely occurred earthquake belongs to small probability event, be used for ensureing that the safety of structure not only can significantly improve construction cost to be also unnecessary sometimes by improving design earthquake, such as to this kind of special Important building of nuclear power station steam turbine factory building can by regulation and stipulation seismic fortification intensity consideration geological process ensure nuclear island safety in extreme circumstances away from nuclear island by certain measure control structure exceeding the collapse direction under geological process of setting up defences simultaneously.
Chinese patent CN10431630A discloses a kind of multi-tube lattice type buckling restrained brace, comprises core board, filling-in board and multi-tube lattice type constraint component; Described filling-in board is two, is separately positioned on the dual-side of core board; Described multi-tube lattice type constraint component is two panels, is separately positioned on the upper and lower both sides of filling-in board and core board.The invention solves buckling restrained brace and account for the heavy problem of whole support from great, constraint component material, reduce the impact of engineering structures earthquake disaster, be also convenient to the damage status shaking rear observation buckling restrained brace core board simultaneously.But the present invention can not control the collapse direction of agent structure in seismic process, personal safety as well as the property safety important in significant subject structure can not be protected.
Utility model content
The purpose of this utility model is exactly provide a kind of to control that collapse direction, structure are simple, the unidirectional buckling restrained brace device of weak type is suppressed in low the drawing of cost to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
One is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, be arranged in agent structure, in order to the collapse direction of control subject structure in earthquake, this bracing or strutting arrangement comprises buckling restrained brace assembly, upper flange junction plate, lower flange junction plate and reinforcing pull rod, described reinforcing pull rod is fixedly connected with lower flange junction plate respectively with the lower end of buckling restrained brace assembly, the upper end of buckling restrained brace assembly is fixedly connected with upper flange junction plate, the upper end of reinforcing pull rod is provided with screw thread, and through upper flange junction plate, described thread jacket is provided with nut, described upper flange junction plate is fixedly connected with agent structure respectively with lower flange junction plate.
Described upper flange junction plate is identical with lower flange connecting board structure, includes the cross weld seam being arranged on central authorities, the reinforcing pull rod preformed hole being arranged on cross weld seam both sides and multiple bolt hole.
The reinforcing pull rod preformed hole of lower flange junction plate is passed in the lower end of described reinforcing pull rod, and is fixed by nut and lower flange junction plate, and the reinforcing pull rod preformed hole of upper flange junction plate is passed in the upper end of reinforcing pull rod.
Gap is provided with between described nut and upper flange junction plate.
Described buckling restrained brace assembly comprises steel bushing, packed layer, soap-free emulsion polymeization expanding layer and the core panel that ecto-entad sets gradually, and is provided with gap between described core panel and soap-free emulsion polymeization expanding layer.
Described core panel is low-yield plate, comprises constraint surrender section and non-compliant section, and described non-compliant section is arranged on constraint surrender section two ends, and affixed with cross weld seam, and described constraint surrender section cross section is yi word pattern.
Described reinforcing pull rod is high-toughness high-strength reinforcing pull rod, and its cross section is circular.
Compared with prior art, the utility model has the following advantages:
One, control collapse direction: lower flange junction plate of the present utility model is fixedly connected with the lower end of reinforcing pull rod with buckling restrained brace assembly, upper flange junction plate is fixedly connected with the upper end of buckling restrained brace assembly, the upper end of reinforcing pull rod is through upper flange junction plate, and nut is set fixes the spacing with upper flange junction plate, when being under pressure in geological process lower support, only stressed separately by buckling restrained brace assembly, when under tension, buckling restrained brace assembly generation deformation, but after upper flange junction plate contacts with nut, by buckling restrained brace assembly and reinforcing pull rod jointly stressed, therefore tension ability of the present utility model is greater than compression capability, thus the agent structure that can control to build is collapsed to the side, direction that is stressed.
Two, structure is simple, cost is low: the utility model structure is simple, is only made up of three major parts, and cost is lower, be convenient to install.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the arrangement diagram of this bracing or strutting arrangement in embodiment.
Fig. 3 is the sectional drawing in A-A face in Fig. 1.
Fig. 4 is the structural representation of core panel.
Fig. 5 is the cross section structure schematic diagram of upper and lower flange connecting plate.
Wherein: 1, buckling restrained brace assembly, 11, core panel, 111, constraint surrender section, 112, non-compliant section, 12, packed layer, 13, soap-free emulsion polymeization expanding layer, 14, steel bushing, 2, nut, 3, reinforcing pull rod, 4, upper flange junction plate, 5, lower flange junction plate, 6, bolt hole, 7, reinforcing pull rod preformed hole, 8, cross weld seam, 9, gap.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment:
As shown in Figure 1, one is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, be arranged in agent structure, in order to the collapse direction of control subject structure in earthquake, this bracing or strutting arrangement comprises buckling restrained brace assembly 1, upper flange junction plate 4, lower flange junction plate 5 and reinforcing pull rod 3, reinforcing pull rod 3 is fixedly connected with lower flange junction plate 5 respectively with the lower end of buckling restrained brace assembly 1, the upper end of buckling restrained brace assembly 1 is fixedly connected with upper flange junction plate 4, the upper end of reinforcing pull rod 3 is provided with screw thread, and through upper flange junction plate 4, thread jacket is provided with nut 2, upper flange junction plate 4 is fixedly connected with agent structure respectively with lower flange junction plate 5.
As shown in Figure 5, upper flange junction plate 4 is identical with lower flange junction plate 5 structure, includes the cross weld seam 8 being arranged on central authorities, the reinforcing pull rod preformed hole 7 being arranged on cross weld seam 8 both sides and multiple bolt hole 6.
The reinforcing pull rod preformed hole 7 of lower flange junction plate 5 is passed in the lower end of reinforcing pull rod 3, and is fixed by nut and lower flange junction plate 5, and the reinforcing pull rod preformed hole 7 of upper flange junction plate 4 is passed in the upper end of reinforcing pull rod 3.
Be provided with gap 9 between nut 2 and upper flange junction plate 4, gap 9 length regulates by nut, and the value in gap 9 is determined by calculating according to the structural performance target of expection.
As shown in Figure 3, buckling restrained brace assembly 1 comprises steel bushing 14, packed layer 12, soap-free emulsion polymeization expanding layer 13 and the core panel 11 that ecto-entad sets gradually, and is provided with gap between core panel 11 and soap-free emulsion polymeization expanding layer 13.
As shown in Figure 4, core panel 11 is low-yield plate, comprises constraint surrender section 111 and non-compliant section 112, and non-compliant section 112 is arranged on constraint surrender section 111 two ends, and affixed with cross weld seam 8, and constraint surrender section cross section is yi word pattern.
Reinforcing pull rod 3 is high-toughness high-strength reinforcing pull rod, and its cross section is circular.
If collapse by expection collapse direction (left) under rarely occurred earthquake, then this control device buckling restrained brace device of collapse direction in earthquake can be used to arrange by mode as shown in Figure 2.Under geological process, plate supporting device supports pressurized to during the motion of expection collapse direction, bracing or strutting arrangement tension during the motion of general frame right direction.General buckling restrained brace is only had to work when making structure relative storey displacement less according to this kind of support arrangement mode and support performance, start and buckling restrained brace assembly 1 co-operation when relative storey displacement reaches the reinforcing pull rod 3 arranged when very large (being generally taken as the plasticity story drift limit value specified than earthquake resistant code slightly a little bit smaller) structure is moved toward right direction, thus it is large to make to move right ratio of rigidity motion rigidity left, therefore limiting structure displacement to the right increases further, can increase very fast to left dislocation because buckling restrained brace assembly 1 has entered plasticity simultaneously, so just can realize the structure when seismic forces exceedes design load and finally can swing to expection collapse direction.
Above-mentioned is can understand for ease of those skilled in the art and use the present invention to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.

Claims (7)

1. one kind is drawn and suppresses the unidirectional buckling restrained brace device of weak type, be arranged in agent structure, in order to the collapse direction of control subject structure in earthquake, it is characterized in that, this bracing or strutting arrangement comprises buckling restrained brace assembly (1), upper flange junction plate (4), lower flange junction plate (5) and reinforcing pull rod (3), described reinforcing pull rod (3) is fixedly connected with lower flange junction plate (5) respectively with the lower end of buckling restrained brace assembly (1), the upper end of buckling restrained brace assembly (1) is fixedly connected with upper flange junction plate (4), the upper end of reinforcing pull rod (3) is provided with screw thread, and through upper flange junction plate (4), described thread jacket is provided with nut (2), described upper flange junction plate (4) is fixedly connected with agent structure respectively with lower flange junction plate (5).
2. one according to claim 1 is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, it is characterized in that, described upper flange junction plate (4) is identical with lower flange junction plate (5) structure, includes the cross weld seam (8) being arranged on central authorities, the reinforcing pull rod preformed hole (7) being arranged on cross weld seam (8) both sides and multiple bolt hole (6).
3. one according to claim 2 is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, it is characterized in that, the reinforcing pull rod preformed hole (7) of lower flange junction plate (5) is passed in the lower end of described reinforcing pull rod (3), and fixed by nut and lower flange junction plate (5), the reinforcing pull rod preformed hole (7) of upper flange junction plate (4) is passed in the upper end of reinforcing pull rod (3).
4. one according to claim 1 is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, it is characterized in that, is provided with gap (9) between described nut (2) and upper flange junction plate (4).
5. one according to claim 2 is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, it is characterized in that, described buckling restrained brace assembly (1) comprises steel bushing (14), packed layer (12), soap-free emulsion polymeization expanding layer (13) and the core panel (11) that ecto-entad sets gradually, and is provided with gap between described core panel (11) and soap-free emulsion polymeization expanding layer (13).
6. one according to claim 5 is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, it is characterized in that, described core panel (11) is low-yield plate, comprise constraint surrender section (111) and non-compliant section (112), described non-compliant section (112) is arranged on constraint surrender section (111) two ends, and affixed with cross weld seam (8), described constraint surrender section cross section is yi word pattern.
7. one according to claim 1 is drawn and is suppressed the unidirectional buckling restrained brace device of weak type, it is characterized in that, described reinforcing pull rod (3) is high-toughness high-strength reinforcing pull rod, and its cross section is circular.
CN201520843021.XU 2015-10-28 2015-10-28 Draw and suppress one -way buckling restrained brace device of weak type CN205224327U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520843021.XU CN205224327U (en) 2015-10-28 2015-10-28 Draw and suppress one -way buckling restrained brace device of weak type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520843021.XU CN205224327U (en) 2015-10-28 2015-10-28 Draw and suppress one -way buckling restrained brace device of weak type

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106639462A (en) * 2016-11-15 2017-05-10 东南大学 Bending induction support with two-way spiral type induction units at ends

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106639462A (en) * 2016-11-15 2017-05-10 东南大学 Bending induction support with two-way spiral type induction units at ends
CN106639462B (en) * 2016-11-15 2019-01-01 东南大学 A kind of end has the buckling induction support of bidirectional screw type induction unit

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