工程科学学报
工程科學學報
공정과학학보
Journal of University of Science and Technology Beijing
2015年
11期
1504-1512
,共9页
沈银澜%牟在根%Johannes Schneider%Siegfried F.Stiemer
瀋銀瀾%牟在根%Johannes Schneider%Siegfried F.Stiemer
침은란%모재근%Johannes Schneider%Siegfried F.Stiemer
层积木结构%生产工艺%设计方法%连接%抗震性能%破坏模式
層積木結構%生產工藝%設計方法%連接%抗震性能%破壞模式
층적목결구%생산공예%설계방법%련접%항진성능%파배모식
laminated timber structures%production technology%design methods%connection%seismic performance%failure modes
交叉层积木作为一种新型木建筑材料已经在北美地区推广开来,然而在我国还没有得到引进和推广. 本文介绍了这种新型材料的性能特点,总结其生产工艺、设计方法和研究进展,重点对交叉层积木七种半刚性连接的抗震性能进行试验研究. 研究表明:紧固件全部被拔出的失效模式为理想的延性破坏模式,滞回曲线表现出高度非线性、刚度退化、强度退化以及捏拢现象. 通过试验数据分析,给出了在延性和承载能力两方面最佳的连接.
交扠層積木作為一種新型木建築材料已經在北美地區推廣開來,然而在我國還沒有得到引進和推廣. 本文介紹瞭這種新型材料的性能特點,總結其生產工藝、設計方法和研究進展,重點對交扠層積木七種半剛性連接的抗震性能進行試驗研究. 研究錶明:緊固件全部被拔齣的失效模式為理想的延性破壞模式,滯迴麯線錶現齣高度非線性、剛度退化、彊度退化以及捏攏現象. 通過試驗數據分析,給齣瞭在延性和承載能力兩方麵最佳的連接.
교차층적목작위일충신형목건축재료이경재북미지구추엄개래,연이재아국환몰유득도인진화추엄. 본문개소료저충신형재료적성능특점,총결기생산공예、설계방법화연구진전,중점대교차층적목칠충반강성련접적항진성능진행시험연구. 연구표명:긴고건전부피발출적실효모식위이상적연성파배모식,체회곡선표현출고도비선성、강도퇴화、강도퇴화이급날롱현상. 통과시험수거분석,급출료재연성화승재능력량방면최가적련접.
Cross laminated timber ( CLT) , a new generation of engineered wood-based product, is gaining attention in the North American market, but it has not been introduced and spread in China yet. In the paper, the mechanical properties of CLT are intro-duced in details, and the production technology, design methods and research progress are summarized as well. What' s more, an experimental study on CLT flexible connection in seismic performance is done. The results show that the failure with all fasteners pulled out is disclosed as an ideal ductility failure. Highly nonlinear, stiffness degradation, strength degradation and pinching are illustrated in the hysteresis curves of connection. An excellent connector in ductility and load capacity is presented by test data analy-sis.