铁道科学与工程学报
鐵道科學與工程學報
철도과학여공정학보
JOURNAL OF RAILWAY SCIENCE AND ENGINEERING
2015年
4期
879-886
,共8页
余志武%彭晓丹%国巍%彭妙培
餘誌武%彭曉丹%國巍%彭妙培
여지무%팽효단%국외%팽묘배
装配式剪力墙结构%U 型钢筋连接%锚固性能%拉拔试验%数值仿真
裝配式剪力牆結構%U 型鋼觔連接%錨固性能%拉拔試驗%數值倣真
장배식전력장결구%U 형강근련접%묘고성능%랍발시험%수치방진
precast shear wall structure%U -shaped reinforcements connections%anchorage performance%pull-out test%numerical simulation
装配式剪力墙结构是一种顺应我国住宅产业化要求的结构形式,由于其低碳、节能和环保的特点,目前已经得到越来越多的重视和应用。针对装配式剪力墙结构中预制墙体的钢筋连接,提出一种新型的钢筋连接方法,即 U 型套箍钢筋连接,基于试验工作和数值模拟研究 U 型套箍钢筋连接中 U 型钢筋锚固性能,包括锚固试件的荷载-位移曲线、破坏形态、混凝土开裂行为、钢筋变形行为及钢筋混凝土黏结性能。研究结果表明:U 型钢筋的埋深直接影响锚固试件的破坏形态,U型钢筋深埋时时,试件延性良好,性能可靠。
裝配式剪力牆結構是一種順應我國住宅產業化要求的結構形式,由于其低碳、節能和環保的特點,目前已經得到越來越多的重視和應用。針對裝配式剪力牆結構中預製牆體的鋼觔連接,提齣一種新型的鋼觔連接方法,即 U 型套箍鋼觔連接,基于試驗工作和數值模擬研究 U 型套箍鋼觔連接中 U 型鋼觔錨固性能,包括錨固試件的荷載-位移麯線、破壞形態、混凝土開裂行為、鋼觔變形行為及鋼觔混凝土黏結性能。研究結果錶明:U 型鋼觔的埋深直接影響錨固試件的破壞形態,U型鋼觔深埋時時,試件延性良好,性能可靠。
장배식전력장결구시일충순응아국주택산업화요구적결구형식,유우기저탄、절능화배보적특점,목전이경득도월래월다적중시화응용。침대장배식전력장결구중예제장체적강근련접,제출일충신형적강근련접방법,즉 U 형투고강근련접,기우시험공작화수치모의연구 U 형투고강근련접중 U 형강근묘고성능,포괄묘고시건적하재-위이곡선、파배형태、혼응토개렬행위、강근변형행위급강근혼응토점결성능。연구결과표명:U 형강근적매심직접영향묘고시건적파배형태,U형강근심매시시,시건연성량호,성능가고。
Precast shear wall structure is a kind of structure which conforms to the requirements of the housing industrialization in our country,due to its low -carbon,energy -saving,environmentally friendly features,it has gained more and more attention and application.For reinforcements connections in precast wall,this paper presents a new type of method to connect reinforcements in precast shear wall,that is,U -shaped ferrule con-nection.The research of anchorage performance of reinforcements connections in precast shear wall was based on experimental research and numerical simulation,including load -displacement curve,failure modes,concrete cracking behavior,reinforcement deformation behavior and reinforced concrete bond performance of specimens. The results show that the failure modes of U -shaped ferrule connections specimens depend mainly on the depth of U -shaped reinforcements,when the U -shaped reinforcements were buried deep,the connection has good ductility and reliable performance.