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（新疆大學建筑工程學院， 烏魯木齊 830047）
［摘要］提出一種利用廢舊輪胎的新型村鎮(zhèn)建筑簡易隔震結構，該結構利用疊層輪胎片制成隔震支座，配合兩層齒型圈梁作為房屋隔震層進行隔震。對平面尺寸為180mm×180mm的疊層輪胎隔震支座進行了不同疊層層數(shù)下豎向極限承載力試驗，發(fā)現(xiàn)支座豎向極限壓應力離散性較大，取下包絡線得到，疊層輪胎隔震支座豎向壓應力為9MPa。對疊層輪胎隔震支座進行了不同疊層層數(shù)、不同設計壓應力下豎向壓縮剛度試驗，分析得到，隨疊層層數(shù)自4層增至8層，豎向壓縮剛度最高下降53-58%；隨設計壓應力從3MPa增至6MPa，豎向壓縮剛度最高上升80-19%。對疊層輪胎隔震支座進行了不同疊層層數(shù)、不同設計壓應力下豎向變形性能試驗，發(fā)現(xiàn)各支座第1次循環(huán)豎向剛度較其他循環(huán)小，其余循環(huán)下支座豎向剛度穩(wěn)定，變化量小于1%。分析得到該結構豎向力學性能穩(wěn)定，隔震效果良好，適合我國廣大村鎮(zhèn)建筑。
［關鍵詞］簡易隔震； 疊層輪胎支座； 村鎮(zhèn)建筑； 豎向力學性能
中圖分類號：TU352.1+2文獻標識碼：A文章編號：1002-848X(2019)08-0049-04
Experimental study on the vertical mechanical properties of the laminated tires isolation bearing of rural buildings
Chen Biaohan， Zhang Guangtai， Tian Huxue， Zhang Qi， Wang Yuxi
(Collage of Civil Engineering, Xinjiang University, Urumqi 830047, China)
Abstract:A simple isolation structure of a new rural building using waste tires is proposed. The structure is made of a laminated tire piece to form a seismic isolation bearing, and the two-layer toothed ring beam is used as a seismic isolation layer for isolation. The vertical ultimate bearing capacity test of laminated tire isolation bearing with plane size of 180mm×180mm was carried out under different laminated layers. It was found that the vertical ultimate compressive stresses of the bearing were highly discrete. The vertical compressive stress of the laminated tire isolation bearing with the lower envelope is 9 MPa. The vertical compression stiffness tests of laminated tire isolation bearings under different laminated layers and different design compressive stresses were carried out. The analysis showed that the vertical compression stiffness decreased by 53-58% with the number of laminated layers increasing from 4 to 8 layers. With the design compressive stress increasing from 3MPa to 6MPa, the vertical compression stiffness is up to 80-19%. The vertical deformation performance tests of different laminated layers and different design compressive stresses were carried out on the laminated tire isolation bearing. It was found that the vertical stiffness of the first cycle of each bearing was smaller than other cycles, and the vertical stiffness is stable under the other cycles, the amount of change is less than 1%. It is analyzed that the vertical mechanical properties of the structure are stable and the isolation effect is good. It is suitable for the majority of villages and towns in China.
Keywords:simple isolation; laminated tire isolators; rural buildings; vertical mechanical properties
作者簡介：陳彪漢，碩士研究生，Email:724163103@qq.com。
