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PRIMJENA PARAMETARA STIŠLJIVOSTI U ANALIZI SLIJEGANJA KOMUNALNOG OTPADA 社区部门活动参数解析
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-12-27 DOI: 10.13167/2013.7.4
Dragoslav Rakić, Jelka Krušić, Katarina Andrejev, Dušan Lazaroski
In order to enable accurate modeling and numerical simulation of long-term behavior of the landfill, which is of great importance in the design of cover systems and closure of the waste disposal, it is necessary to know compressibility parameters. In contrast to the native soil, the main component of the overall settlement of waste is secondary compression. Therefore, the determination of the secondary compression index (Cα) or modified secondary compression index (Cα') is especially important. This paper presents some of laboratory results for municipal waste consolidation tests method as well as their role in settlement analysis of waste material. Sample tested was prepared artificially in line with the recommendations for sizes of the apparatus used and the largest particles in a sample (EN 1997-2, ASTM 2007a, 2007b). Different conventional models for prediction of municipal waste settlement were used settlement analysis was performed using the parameters of compressibility.
为了对垃圾填埋场的长期行为进行准确的建模和数值模拟,有必要了解垃圾填埋场的可压缩性参数,这对垃圾填埋场的覆盖系统和封闭设计具有重要意义。与土相比较,废弃物整体沉降的主要组成部分是二次压缩。因此,确定次生压缩指数(Cα)或修正次生压缩指数(Cα′)尤为重要。本文介绍了一些城市垃圾固结试验方法的实验室结果及其在垃圾沉降分析中的作用。所测试的样品是根据所用仪器的尺寸和样品中最大颗粒的建议(EN 1997-2, ASTM 2007a, 2007b)人工制备的。采用不同的常规城市垃圾沉降预测模型,利用可压缩性参数进行沉降分析。
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引用次数: 0
PREGLED KRITERIJA ZA IZBOR GEOTEKSTILA ZA FILTAR 土工织物过滤准则的选择
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-12-27 DOI: 10.13167/2013.7.5
Nada Perić, Mensur Mulabdić
U radu se obrađuje primjena geotekstila za filtre i drenaže u geotehnickim i hidrotehnickim zahvatima. Analizirani su mehanizmi važni za dobro fu
用于过滤和排水的土工布的使用是在岩土工程和水利技术条件下处理的。分析机制对良好的傅很重要
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引用次数: 0
CONSTRUCTABILITY-BUILDABILITY-IZGRADIVOST CONSTRUCTABILITY-BUILDABILITY-IZGRADIVOST
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.7
M. Galić, Zlata Dolaček-Alduk, Boris Uremovic
Izgradivost je koncept koji jos nije ostvario znacajniji utjecaj u građevinskoj praksi u Hrvatskoj, kao sto je to slucaj u zemljama poput SAD-a, Kanade, UK i Australije. Ovim se radom nastoji prihvacenu definiciju, ciljeve i output koncepta izgradivosti približiti sudionicima u građevinskim projektima, no i utvrditi sto pojedine interesne strane smatraju kljucnim problemom u eventualnom provođenju koncepta, ali i koji su uzroci problema na relaciji projektiranje-izvođenje-koristenje opcenito.
建筑是一个尚未在克罗地亚建筑实践中受到重大影响的概念,例如在美国、加拿大、英国和澳大利亚等国家。这项工作旨在采用建筑项目参与者所要处理的建筑概念的定义、目标和输出,同时确定某些相关方在可能实施该概念时考虑的关键问题,以及设计本身问题的主要原因。
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引用次数: 1
UTJECAJNE LINIJE KONSTRUIRANE PROGRAMOM AUTODESK ROBOT 授权程序插入语
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.4
Silva Lozančić, Marin Grubišić, Tomislav Bakunić
Utjecajne funkcije i njihov graficki prikaz - utjecajne linije, koriste se kod proracuna konstrukcija izloženih djelovanju pokretnih opterecenja.
运用有效函数及其图形表示-情感线来计算运动负荷的构成。
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引用次数: 0
DIJAGNOSTICIRANJE UZROKA DEGRADACIJE ŠUPLJIH OPEČNIH BLOKOVA UGRAĐENIH U STROPNU ARMIRANOBETONSKU KONSTRUKCIJU 我的认识是退化的
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.9
Samo Lubej, Boris Lutar
U konstrukciji montažnih stropova od supljih opecnih blokova, koji su element ispune između nosivih armiranobetonskih greda, u razdoblju od cetiri godine poslije njihove izgradnje doslo je do znatnih ostecenja. Ostecenja stropova manifestirala su se odlamanjem dijelova supljih opecnih blokova, sto je ugrožavalo sigurnost ljudi. Uporabom optickog mikroskopa i elektronskog mikroskopa, kao i kemijske mikroanalize EDS (Energy Dispersive System), analizirana je ostecena keramika te je utvrđena prisutnost iskristalizirane soli. EDS analizom utvrđena je prisutnost kemijskih elemenata (Al i S), koji uz utvrđenu morfologiju kristala ukazuju na mogucnost prisutnosti minerala etringita (Al2O33CaSO4 x 32H2O). Numerickom analizom uz primjenu metode konacnih elemenata, uporabom racunalnog programa COSMOS Design STAR 3.0 od SRAC (Structural Research and analisis Corporation USA), procijenjen je utjecaj temperaturnih opterecenja na koncetraciju naprezanja na vrhu mikropukotina i na njihovo sirenje. U numerickoj analizi eksperimentalno su uzeta u obzir određena fizikalno- mehanicka svojstva materijala. Analizirani su primjeri supljih opecnih blokova s prisutnoscu bijelih kristala i bez njih. Prikazan je raspored faktora sigurnosti po modelu u odnosu na Mises-ovu hipotezu razaranja. Rezultati eksperimentalnih i numerickih istraživanja pokazali su da kemijska degradacija supljih opecnih blokova, u kombinaciji s temperaturnim opterecenjem koje nastaje zbog promjena klimatskog režima, može uzrokovati takva ostecenja te da je time ugrožena i sigurnost konstrukcije.
在硫磺燃烧砖的安装天花板的施工中,阿米拉诺贝顿梁之间填充了元素,在施工四年后发生了重大损坏。天花板的残留物已经通过移除部分烧伤块来表现出来,危及人们的安全。利用光学显微镜、电子显微镜以及能量分散系统对陶瓷的损伤进行了分析,并确定了结晶盐的存在。EDS分析确定了化学元素(Al和S)的存在,这表明可能存在具有特定晶体形态的斜方辉石矿物(Al2O33CaSO4 x 32H2O)。使用SRAC(美国结构研究与分析公司)的COSMOS Design STAR 3.0计算机程序,对最终元素法的使用进行了数值分析,评估了温度负荷对微观输出浓度及其警报的影响。在数值分析中,考虑了材料的实验特性。已经分析了带有和不带有白色晶体的烟雾燃烧块的例子。模型安全系数表与米塞斯的破坏假设进行了比较。实验和数值研究的结果表明,硫燃料块的化学降解,再加上气候变化带来的温度负担,可能会导致这种破坏,并危及建筑的安全。
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引用次数: 0
TRŽIŠNA PRIHVATLJIVOST GRAĐEVINSKOG MATERIJALA S MALIM UDJELOM UGLJIKA - DIO II: ZAKONODAVNI OKVIR 重大材料的一些具体要求-第二部分:立法框架
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.1
Tihomir Dokšanović, Mario Farkaš, Nataša Njegovanović
Hrvatska je, kao skorasnja clanica Europske Unije i potpisnica Kyotskog protokola, svoje zakonodavstvo znacajno usmjerila prema smanjenju emisija staklenickih plinova i opcenito zastiti prirodnog okolisa. Zakoni vezani uz prirodni okolis isprepleteni su sa zakonima koji utjecu na građevne proizvode, a naravno time i na materijale s malim udjelom ugljika - oni uvelike utjecu na njihovu tržisnu prihvatljivost. Njihovo aktivno provođenje i popularizacija nužni su kako bi se doprinijelo težnjama unaprjeđenja stanja okolisa i prirode Hrvatske, a posljedicno i položaja unutar Europske Unije i Sustava za trgovinu emisijama. Kroz clanak je pružen pregled zakonodavnog okvira Hrvatske vezanog uz materijale s malim udjelom ugljika koji su predstavljeni u prvom dijelu ovoga rada, a predstavljeni su i određeni prijedlozi za poboljsanje trenutacnog stanja.
克罗地亚作为欧洲联盟最近的成员国和《京都议定书》的签署国,其立法重点是减少温室气体排放,特别是保护自然环境。与自然环境有关的法律得到了影响建筑产品的法律的补充,当然还有影响小碳材料的法律——它们对其市场可接受性产生了巨大影响。它们的积极实施和推广对于应对改善克罗地亚环境和自然的挑战,从而在欧洲联盟和排放交易体系中的地位至关重要。通过这篇文章,还对本工作第一部分中介绍的克罗地亚与小规模碳材料有关的立法框架进行了审查,并提出了改善现状的建议。
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引用次数: 0
PRORAČUN SPREGNUTE REŠETKASTE KONSTRUKCIJE VIŠEKATNE ZGRADE 建造更多建筑物方案
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.6
Tijana Novoselić, Tihomir Dokšanović, Damir Markulak
Composite acti on is a structural solution that has increasing importance due to the significant potential in performance improvement of structural elements, and simplification of the construction technological process. Although steel - concrete composite structures are no w in use for more than a century, certain forms of composite action are still not sufficiently dealt with in modern standards. One of such solutions is a composite truss system, which is the subject of this paper. This type of construction has advantages t hat can be utilized in medium and large spans, and in comparison to steel trusses has a lower height. When it is combined with trapezoidal sheets for composite slabs it provides a number of practical advantages. Relevant literature reports that with the us e of this system load transfer efficiency increases by 20% to 30%, and the shown design example of a building for commercial purposes in composite and non - composite versions supports such a claim.
复合作用是一种结构解决方案,由于其在结构元件性能改进和简化施工工艺过程方面的巨大潜力,其重要性日益增加。虽然钢-混凝土组合结构已经有一个多世纪没有使用了,但在现代标准中,某些形式的组合作用仍然没有得到充分的处理。其中一种解决方案是复合桁架体系,这是本文的主题。这种类型的结构具有优点,可以在中跨度和大跨度中使用,并且与钢桁架相比具有较低的高度。当它与梯形板组合成复合板时,它提供了许多实用的优点。相关文献报道,随着该系统的使用,负荷传递效率提高了20%至30%,所示的复合材料和非复合材料版本的商业建筑设计实例支持了这一说法。
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引用次数: 0
TRG VATROSLAVA LISINSKOG U OSJEČKOJ TVRĐI - POVIJESNI I PROSTORNI RAZVOJ 通往空军里斯本大火的道路-一项重大的太空开发
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.5
Sanja Lončar-Vicković, Željka Jurković, Dina Stober
Autorice u clanku donose prikaz povijesnog i prostornog razvitka Trga Vatroslava Lisinskog u osjeckoj Tvrđi, pocevsi od njegovog formiranja do da
作者在文章中展示了里斯本消防广场在团结意义上的历史和空间发展,从其形成到
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引用次数: 0
ANALYSIS OF STRESS AND STRAIN IN THE REINFORCED CONCRETE STRUCTURE OF A SPORTS HALL GRANSTAND 体育馆看台钢筋混凝土结构应力应变分析
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.8
D. Šimić, Marina Frančić
The analysis of stress and strain in the reinforced concrete structure of a sports hall grandstand was conducted theoretically, by means of the finite element method, and experimentally, by structural model testing in laboratory. Structural model for laboratory testing was prepared on the scale 1:10 using a medium density fibreboard plate 38 mm in thickness. Mechanical properties of the medium density fibreboard were determined by testing medium density fibreboard specimens in laboratory. After analysis of the reinforced concrete grandstand structure, and following comparison of results obtained by model testing in laboratory with results obtained by analysis via finite element method, it can be concluded that there is a good correspondence of research results for stress and deflection of the reinforced concrete grandstand structure.
对体育馆看台钢筋混凝土结构的应力应变进行了理论分析和有限元分析,并通过室内结构模型试验进行了试验分析。采用厚度为38 mm的中密度纤维板,按1:10的比例制作实验室测试用的结构模型。通过对中密度纤维板试样进行室内试验,确定了中密度纤维板的力学性能。通过对钢筋混凝土看台结构进行分析,并将室内模型试验结果与有限元分析结果进行对比,得出钢筋混凝土看台结构的应力和挠度研究结果具有较好的对应关系。
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引用次数: 0
GUBITAK STABILNOSTI I ODREĐIVANJE NOSIVOSTI ČELIČNOG HIDRAULIČNOG PODUPIRAČA 稳定性损失和铁水电水槽存在的确定
IF 0.2 Q4 ENGINEERING, CIVIL Pub Date : 2013-07-01 DOI: 10.13167/2013.6.10
Nina Mujkanović, Joško Krolo
Sažetak: Hidraulicni podupirac prvenstveno je namijenjen uporabi u građevinarstvu, ali svoju primjenu može naci i u drugim podrucjima poput rudarstva ili brodogradnje. Konstrukcija ovog hidraulicnog podupiraca razlikuje se od klasicnog po tome sto umjesto dvije cijevi ima tri, a u najdonjoj, baznoj cijevi, ima ugrađenu hidraulicnu dizalicu. U ovome radu utvrđena je nosivost takvog hidraulicnog podupiraca analitickim rjesenjem diferencijalne jednadžbe, proracunom prema euronormi 3 i metodom konacnih elemenata (SOFiSTiK). Ta rjesenja su uspoređena s nosivoscu dobivenom eksperimentalnim putem.
概述:液压支架主要用于建筑,但也可用于采矿或造船等其他领域。这种水解支架的结构不同于传统的两个管和三个管的位置,最低的底部管有一个内置的水解升降机。在这项工作中,通过分析微分方程和最终元素法(SOFiSTiK)来确定这种氢载体的重量。将这些解决方案与航母的实验路线进行了比较。
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引用次数: 0
期刊
Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS
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