武汉理工大学学报(交通科学与工程版)
武漢理工大學學報(交通科學與工程版)
무한리공대학학보(교통과학여공정판)
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY(TRANSPORTATION SCIENCE & ENGINEERING)
2015年
3期
547-550
,共4页
粘结滑移%光圆钢筋%加载速率%侧压
粘結滑移%光圓鋼觔%加載速率%側壓
점결활이%광원강근%가재속솔%측압
bond slip%plain round bar%loading rate%lateral pressure
为了研究加载速率对在不同侧向压力作用下光圆钢筋与混凝土间粘结性能的影响,采用30个拉拔试件研究了加载速率对粘结滑移曲线及粘结参数的影响。试验结果表明,加载速率对粘结性能的影响,取决于侧向压力的大小。当无侧向压力时,粘结性能与加载速率的大小无关。当侧压一定时,随着加载速率增加,粘结强度和残余强度上升,但极限粘结应力对应的滑移量下降。
為瞭研究加載速率對在不同側嚮壓力作用下光圓鋼觔與混凝土間粘結性能的影響,採用30箇拉拔試件研究瞭加載速率對粘結滑移麯線及粘結參數的影響。試驗結果錶明,加載速率對粘結性能的影響,取決于側嚮壓力的大小。噹無側嚮壓力時,粘結性能與加載速率的大小無關。噹側壓一定時,隨著加載速率增加,粘結彊度和殘餘彊度上升,但極限粘結應力對應的滑移量下降。
위료연구가재속솔대재불동측향압력작용하광원강근여혼응토간점결성능적영향,채용30개랍발시건연구료가재속솔대점결활이곡선급점결삼수적영향。시험결과표명,가재속솔대점결성능적영향,취결우측향압력적대소。당무측향압력시,점결성능여가재속솔적대소무관。당측압일정시,수착가재속솔증가,점결강도화잔여강도상승,단겁한점결응력대응적활이량하강。
In order to study the influence of loading rate on the bond behavior between plain round bars and concrete under lateral pressure ,a total of 30 pull‐out specimens were tested to investigate the effect of the loading rate on the bond slip curves and bond parameters .The experimental results showed that the influence of loading rate on bond behavior depending upon the value of lateral pres‐sure .When no lateral pressure is applied ,the bond behavior is insensitive to the loading rate .Howev‐er ,for a given lateral pressure ,the ultimate and residual bond strengths increase but the slip at the peak bond stress decreases with the increase of the loading rate .