【WO2019204558A1】屈曲约束支撑和包括相关申请的相同交叉引用的框架【专利】

) ((51)International Patent Classification:UG,ZM,ZW),Eurasian(AM,AZ,BY,KG,KZ,RU,TJ,E04C3/00(2006.01)TM),European(AL,AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LT,LU,LV, (21)International Application Number:MC,MK,MT,NL,NO,PL,PT,RO,RS,SE,SI,SK,SM,PCT/US2019/028040TR),OAPI(BF,BJ,CF,CG,Cl,CM,GA,GN,GQ,GW, (22)International Filing Date:KM,ML,MR,NE,SN,TD,TG).18April2019(18.04.2019)Published:(25)Filing Language:English—with international search report(Art.21(3))(26)Publication Language:English(30)Priority Data:62/660,47820April2018(20.04.2018)US(72)Inventor;and(71)Applicant:RICHARDS,Paul William[US/US];288South900East,Orem,Utah84097(US).(74)Agent:SIMON,Marcus S.;I l l South Main Street,Suite2100,Salt Lake City,Utah84111(US).(81)Designated States(unless otherwise indicated,for everykind o f national protection available):AE,AG,AL,AM,AO,AT,AU,AZ,BA,BB,BG,BH,BN,BR,BW,BY,BZ,CA,CH,CL,CN,CO,CR,CU,CZ,DE,DJ,DK,DM,DO,DZ,EC,EE,EG,ES,FI,GB,GD,GE,GH,GM,GT,HN,HR,HU,ID,IL,IN,IR,IS,JO,JP,KE,KG,KH,KN,KP,KR,KW,KZ,LA,LC,LK,LR,LS,LU,LY,MA,MD,ME,MG,MK,MN,MW,MX,MY,MZ,NA,NG,NI,NO,NZ,OM,PA,PE,PG,PH,PL,PT,QA,RO,RS,RU,RW,SA,SC,SD,SE,SG,SK,SL,SM,ST,SV,SY,TH,TJ,TM,TN,TR,TT,TZ,UA,UG,US,UZ,VC,VN,ZA,ZM,ZW.(84)Designated States(unless otherwise indicated,for everykind o f regional protection available):ARIPO(BW,GH,GM,KE,LR,LS,MW,MZ,NA,RW,SD,SL,ST,SZ,TZ,(54)Title:BUCKLING-RESTRAINED BRACES AND FRAMES INCLUDING THE SAME CROSS-REFERENCE TO RELATED APPLICATION(57)Abstract:An example buckling restrained brace("BRB")includes a casing exhibiting a hollow cross-sectional shape defining an interior region.The BRB also includes a core and at least a portion of the core is disposed in the interior region of the casing.For example,the casing may exhibit a first length and the core may exhibit a second length that is greater than the first length such that a portion of the core extends from the casing.The core is separated from the casing by an minimum gap distance along at least a portion of the first length of the casing and a corresponding portion of the second length of the core.BUCKLIN G-RESTRAINED BRACES AND FRAMES INCLUDING THE SAME CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to U.S.Provisional Application No.62/660,478 filed on20April2018,the disclosure of which is incorporated herein,in its entirety,by this reference.BACKGROUND[0002]Buckling restrained braces(“BRBs”)are structural braces that are often used in buildings and other structures.BRBs are configured to withstand cyclical loading caused, for example,by earthquakes.Typically BRBs are most effective when they can resist equal or substantially equal magnitudes of tensile axial forces and compressive axial forces. [0003]Generally,conventional BRBs include a core and a casing.The core may resist large tensile and compression axial forces.When in compression,the core is restricted from buckling by the casing.In an example,a convention BRB may include one or more cementitious materials(e.g.,cement,grout,etc.)that at least substantially fill any gap between the core and the casing.However,the cementitious materials significantly increase the weight of the conventional BRB which in turn impacts fabrication,shipping, and installation costs.[0004]In an example,some BRBs have been disclosed but not seen widespread use, that may include one or more protrusions extending therefrom or attached to the casing that extend between the core and the casing thereby eliminating the need for the BRB to include the cementitious materials.However,the protrusions can greatly increase the difficulty in manufacturing the conventional BRB.For instance,it may be necessary to form the casing from two or more pieces which are then attached together to allow the protrusions to be attached to a middle section of the casing which increases the time and energy required to form the conventional BRB.[0005]In an example,a conventional BRB may increase the cross-sectional size of the core relative to the casing thereby significantly decreasing the gap between the core and the casing and eliminating the need for the BRB to include the cementitious materials. However,in such an example,increasing the cross-sectional size of the core relative to the case also increases the ability of the core to resist tensile axial forces.Increasing the ability of the core to resist tensile axial forces creates a dilemma since the cross-sectional size of the casing likewise needs to be increased such that the ability of the conventional BRB to resist tensile and compressive axial forces should be substantially equal.However,the increased cross-sectional size of the casing then requires the cross-sectional size of the core。