期刊文献+

圆钢防屈曲约束耗能支撑设计及力学性能研究

Research on Design and Mechanical Properties of Buckling-Restrained Energy Dissipation Braces with Round Steel
下载PDF
导出
摘要 该文提出了一种以低屈服点圆钢棒材作为芯材的新型防屈曲耗能支撑,此耗能芯材的截面为圆形。从材料和构造的角度对防屈曲耗能支撑加以改进,简化结构构造,减少加工损耗,在保持产品性能符合现行标准的前提下,减少材料损耗和加工环节,从而降低成本;且通过减少焊接,同时增加一系列构造的措施,以加强产品的低周疲劳性能,减少耗能。通过理论公式和试验探究圆钢防屈曲约束耗能支撑的工作机理、力学性能及耗能能力,发现相比于钢板防屈曲约束耗能支撑,此设计可提高疲劳性能,累计塑性延性系数可达到1500以上。 This paper proposes a novel buckling-restrained energy dissipation brace(BREDB)utilizing low-yield-point round steel bars as the core material,with a circular cross-section for the energy dissipation core.The BREDB is improved from both material and structural perspectives,aiming to simplify the structure,reduce processing losses,and cut costs while maintaining product performance in compliance with current standards.By minimizing material wastage and processing steps,the design achieves cost reduction.Furthermore,a series of structural enhancements are introduced to strengthen the brace's low-cycle fatigue performance and reduce energy consumption,achieved through the reduction of welding.Theoretical formulations and experiments are conducted to explore the working mechanism,mechanical properties,and energy dissipation capabilities of the round steel buckling-restrained energy dissipation brace.The results indicate that compared to steel platebased BREDBs,this design enhances fatigue performance,with a cumulative plastic ductility factor exceeding 1,500.
作者 王久伟 WANG Jiuwei
出处 《重庆建筑》 2024年第9期79-84,共6页 Chongqing Architecture
关键词 圆钢 防屈曲约束耗能支撑 力学性能 疲劳性能 Round Steel Buckling-Restrained Energy Dissipation Brace Mechanical Properties Fatigue Performance
  • 引文网络
  • 相关文献

参考文献3

二级参考文献40

  • 1叶列平,冯鹏.FRP在工程结构中的应用与发展[J].土木工程学报,2006,39(3):24-36. 被引量:625
  • 2慳原章雄,宮井清忠,宮井一雄,等.フリブレ一ス方式の可撓耐震壁その開発と応用設計例[J].建築技術,1974,271(3):139-150.
  • 3Tadaharu Nagao,Sigeharu Takahashi.A study on the elasto-plastic behavior of unbonded composite bracing (part 1)[J].Journal of Structural and Construction Engineering,AIJ,1990,415(9):105-115.(in Japanese)
  • 4Eiichiro Saeki,Yasushi Maeda,Hideji Nakamura,et al.Experimental study on practical-scale unbonded braces[J].Journal of Structural and Construction Engineering,AIJ,1995,476(10):149-158.(in Japanese)
  • 5Narihara Hiroyuki,Tsujita Osamu,Koetaka Yuji.The experimental study on buckling restrained braces (part 1 and part 2)[C]// Summaries of Technical Papers of Annual Meeting,AIJ.Japan:AIJ,2000.911-914.(in Japanese)
  • 6Mamoru Iwata,Masatoshi Murai.Buckling-restrained brace using steel mortar planks:performance evaluation as a hysteretic damper[J].Earthquake Engineering and Structural Dynamics,2006,35(14):1807-1826.
  • 7Cameron Black,Nicos Makris,Ian Aiken.Component testing,stability analysis and characterization of buckling-restrained unbonded bracesTM[R].Technical Report:PEER2002/08,University of California,Berkeley,2002.
  • 8Steve Merritt,Chia-Ming Uang,Gianmario Benzoni.Subassemblage testing of corebrace buckling-restrained braces[R].Technical Report:TR-2003/01,University of California,San Diego,2003.
  • 9Tremplay R,Bolduc P,Neville R,et al.Seismic testing and performance of buckling-restrained bracing systems[J].Canadian Journal of Civil Engineering,2006,33:183-198.
  • 10Ma N,Zhao J X,Wu B,et al.Full scale subassemblage test of all-steel buckling-restrained brace[C]// Proceeding of the 10th International Symposium on Structural Engineering for Young Expert,Beijing:Science Press,2008:949-954.

共引文献90

;
使用帮助 返回顶部