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80篇 您的检索式:作者名="Dubina"
    题名 作者 年代 出处 被引量
1冷成型钢框架房屋的抗震性能显示文摘近年来,对轻型钢框架房屋在地震作用下的反应进行了很多重要的研究。几乎所有的研究都是将这些结构特征化,然后进行试验和理论分析来研究其在地震下的反应以及墙板的性能。通常情况下,墙板的整体性能是主要的研究目标。然而,根据试验现象来看,墙板的整体性能是由连接件的性能控制的。这些连接件包括板和板之间的连接件以及墙板和钢框架之间的连接件。另外,三维房屋结构的整体性能受非结构构件影响很大,这在当前的设计方法中是没有考虑的。本文回顾了近年来PolitehnicaUniversityofTimisoara由作者主持的研究成果,该成果以衡量轻型钢框架房屋的性能及特征为目标,致力于这种结构的具体特征的设计。本文还介绍了剪力墙板的足尺单调及循环加载试验,连接节点的试验以及对正在建造中的房屋的现场环境振动试验。Dan DUBINA 2007建筑钢结构进展2007,9,1:8
2水分和二氧化碳引起的水泥陈化对混凝土和砂浆中化学掺合料性能的影响(英文)显示文摘本工作旨在深入研究水泥的陈化对水泥与化学外加剂相互作用的影响。将Portland水泥分别暴露于35℃和相对湿度为90%的环境中1和3d。选取3种高效减水剂(萘系减水剂NSF、聚羧酸减水剂PCE和干酪素)、1种保水剂(MHEC,甲基纤维素)及两种促凝剂(甲酸钙和无定形氧化铝),研究了水泥与化学外加剂的相互作用。结果表明:水泥的陈化显著改变了新拌浆体的流动性、保水性与凝结行为。由于暴露过程中水泥表面部分水化,水泥的比表面积以及表面电荷均发生变化,进而影响了水泥与化学外加剂的相互作用。具体表现在以下3个方面:1)与新鲜水泥相比,减水剂在陈化水泥中的减水效果减弱,干酪素的分散能力略微降低,而PCE和PNS的分散能力均显著下降,尤其是PNS下降最大;2)陈化水泥呈现较好的保水能力和更高的需水量,因此,为了达到相同的保水效果,其所需的保水剂掺量较新鲜水泥低;3)在陈化水泥中,甲酸钙和无定形氧化铝的促凝效果显著下降,在水泥陈化3d后,这些促凝剂甚至可能延缓水泥水化。E DUBINA J PLANK 2014硅酸盐学报2014,42,2:2
3Performance of wall-stud cold- formed shear panels under monotonic and cyclic loading-- Part Ⅱ: numerical modelling and performance analysis 显示文摘Fulop L A Dubina D 2004Thin-Walled Structures2004,42,2:1
4Treatment of forehead/glabel- lar rhytide complex with combination botulinum toxin a and hyaluron- ic acid versus botulinum toxin A injection alone: a split-face, rater- blinded, randomized control trial 显示文摘Dubina M Tung R Bolotin D 2013J Cosmet Dermatol2013,12,4:1
5Behavior and performance of cold-formed steel-framed houses under seismic action 显示文摘Dubina D 2008Journal of Constructional Steel Research2008,64,:1
6Patterns of pessary care and outcomes for medicare beneficiaries with pelvic organ prolapse显示文摘Alperin M Khan A Dubina E 2013Female Pelvic Med Reconstr Surg2013,19,3:1
7A sorption balance study of water vapour sorption on anhydrous cement minerals and cement constituents 显示文摘DUBINA E WADSo L PLANK J 2011Cem Concr Res2011,41,11:1
8Effect of imperfections on numerical simulation of instability behaviour of cold-formed steel members显示文摘D. Dubina V. Ungureanu 2002Thin-Walled Structures2002,,3:1
9Performance of wall-stud cold-formed shear panels under monotonic and cyclic loading part I: Ex- perimental Research显示文摘Ftiltip L A Dubina D 2004Thin- Walled Structures2004,42,2:1
10Behavior and performance of cold-formed steel- framed houses under seismic action显示文摘Dubina D 2008Journal of Construc- tional Steel Research2008,64,78:1
11Effect of Imperfections on Numerical Simulation of Instability Behaviour of Cold-Formed Steel Members 显示文摘Dubina D Ungureany V 2002Thin-Walled Structures2002,40,3:1
12Cyclic tests of double-sided beam-to-column joints显示文摘Dan Dubina Adrian Ciutina Aurel Stratan 2001Journal of Structural Engineering2001,127,2:1
13Recent research on stability analysis of thin-walled cold-formed steel members 显示文摘Dubina D Goina D Georgescu M 1998Journal of Constructional Steel Research1998,46,1:1
14Dual high-strength steel eccentrically braced frames with removable links 显示文摘DUBINA D STRATAN A DINU F 2008Earthquake Engineering & Structural Dynamics2008,37,15:1
15Stiffness of Joints in Bolted Connected Cold-Formed Steel Trusses显示文摘Raul Zaharia Dan Dubina 2006Journal of Constructional Steel Re- search2006,62,3:1
16Recent research on stability analysis of thin-walled cold-formed steel members 显示文摘Dubina D Goina D Georgescu M 1998Journal of Constructional Steel Research1998,46,1:1
17Performance of wall - stud coldformedshear panels under monotonic and cyclic loading--Part II Numerical modelling and performance analysis显示文摘Fulop L A Dubina D 2004Thin - Walled Structure2004,42,:1
18Effect of imperfections on numerical simulation of instability behaviour of cold-formed steel members显示文摘Dubina D Uneureany V 2002Thin-Walled Structures2002,40,3:1
19Cyclic Tests of Double-Sided Beam-tO-Column Joints显示文摘Dan Dubina Adrian Ciutina Aurel Stratan 2000Journal of Structural Engineering2000,127,2:1
20Freezing of the thawed zone around a well in frozen soils taking into account the pressuredependence of the temperature of freezing 显示文摘DUBINA M M KRASOVITSKII B A 1985Journal Journal of Engineering Physics and Thermophysics1985,48,11:1
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