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Energy Efficiency: Use of BIM in Energy Analysis for Multi-family Residences 能效:BIM在多户住宅能源分析中的应用
Pub Date : 2023-01-01 DOI: 10.18178/ijscer.12.3.85-90
Tiago C. C. Solberg, Olavo P. C. Bastos, Kêyshilla N. S. Rodrigues, Karoline V. Figueiredo, Bruno Barzellay F. da Costa, Gisele S. Barbosa, Claudia Garrido, Assed N. Haddad
—The design of large frames is a strategy used to increase the capture of natural light in buildings. However, this solution entails a higher expense related to the use of climate controls. Therefore, this work employs the Building Information Modeling (BIM) methodology, using the Revit software
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引用次数: 0
Rainfall Runoff and Flood Simulations for Hurricane Impacts on Woonasquatucket River, USA. 飓风对美国伍那斯夸塔基特河影响的降雨径流和洪水模拟。
Pub Date : 2020-08-01 DOI: 10.18178/ijscer.9.3.239-244
Wenrui Huang, Fei Teng, Isaac Ginis, David Ullman, Eren Ozguven

Integrated hydrological and hydrodynamic modeling study has been conducted to investigate hurricane impact on Woonasquatucket River, Rhode Island, USA. Model simulation was conducted for the case study of 2010 storm event. The hydrological model simulates the runoff from the heavy rainstorm, while the river hydrodynamic model simulates the flood waves affected by the interactions of upstream rainfall runoff and downstream storm surge. Results indicate that the river floods was dominant by rainfall runoff in upper river reaches, but dominant by storm surge in the lower river area near the estuary.

为了调查飓风对美国罗德岛州Woonasqutucket河的影响,进行了综合水文和水动力学建模研究。对2010年风暴事件进行了模型模拟。水文模型模拟暴雨径流,而河流水动力学模型模拟上游降雨径流和下游风暴潮相互作用影响的洪水波。结果表明,河流洪水在上游以降雨径流为主,而在河口附近的下游以风暴潮为主。
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引用次数: 0
An Experimental and Numerical Study of the Load Distribution Effect on Composite Slab Shear Resistance 荷载分布对复合板抗剪性能影响的试验与数值研究
Pub Date : 2019-05-01 DOI: 10.18178/ijscer.8.2.101-106
M. Soltanalipour, M. Ballester, F. Carvajal, J. Holomek, M. Bajer
The design codes prescribe “a close simulation” of the uniformly distributed loads for bending tests, since, applying an ideal uniform load on the slab surface, is not technically as simple as applying concentrated loads by spreader beams. The 4-point bending test used in both standard methods m-k and PCM to determine the shear resistance of composite slabs is currently the most conventional loading arrangement. This article presents the comparison between the 4-point bending and uniform load results, obtained from both experimental tests and numerical simulations. Two groups of specimens, made with a common trapezoidal steel profile and concrete, including short and long spans, have been tested under the two loading setups. The numerical analysis of these slabs has been carried out through modelling the realistic interaction of steel and concrete. For the 4-point bending simulation, predefined vertical cracks are modelled representing the real crack inducers, whereas, for the uniform load case, the Willam-Warnke model is used. Both the experimental and the numerical results indicated that the 4-point bending test provides higher shear strength than uniform load. The experimental part was conducted by LERMA (Universitat Politecnica de Catalunya – BarcelonaTech) in collaboration with AdMaS-BUT at Brno University of Technology. The 3D FEM of composite slabs has been made through ANSYS software.
设计规范规定了弯曲试验中均匀分布荷载的“紧密模拟”,因为在板坯表面施加理想的均匀荷载,在技术上并不像通过铺展梁施加集中荷载那么简单。标准方法m-k和PCM均采用四点弯曲试验来确定复合板的抗剪能力,这是目前最常用的加载方式。本文介绍了四点弯曲和均布荷载试验结果与数值模拟结果的比较。两组由普通梯形钢型材和混凝土制成的试件,包括短跨和长跨,在两种加载设置下进行了测试。通过模拟钢与混凝土的真实相互作用,对这些楼板进行了数值分析。对于四点弯曲模拟,预定义的垂直裂纹被建模代表真实的裂纹诱导源,而对于均匀荷载情况,则使用william - warnke模型。试验和数值结果均表明,四点弯曲试验比均布荷载具有更高的抗剪强度。实验部分由LERMA (Universitat Politecnica de Catalunya - BarcelonaTech)与AdMaS-BUT在布尔诺理工大学合作进行。利用ANSYS软件对复合板进行了三维有限元分析。
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引用次数: 1
Linear and Nonlinear Buckling Analysis of Castellated Beams 槽形梁的线性和非线性屈曲分析
Pub Date : 2019-05-01 DOI: 10.18178/ijscer.8.2.83-93
Boksun Kim, S. Elaiwi, L.Y. Li
— The aim of the present paper is to investigate the effect of web openings on the lateral-torsional buckling resistance of castellated beams by using both analytical and numerical methods. The analytical approach is developed based on the principle of minimum potential energy, meanwhile elastic and inelastic numerical solutions obtained using ANSYS software are for the validation of the analytical solutions. The investigations are carried out through the application of uniformly distributed transverse loading on top flange of a castellated beam with common boundary conditions. The developed analytical solutions is can be used for the design and practical use.
本文的目的是通过分析和数值方法研究腹板开口对槽形梁抗侧扭屈曲的影响。基于最小势能原理建立了解析方法,并利用ANSYS软件得到了弹性和非弹性数值解,对解析解进行了验证。通过在具有一般边界条件的城堡梁上翼缘上施加均匀分布横向荷载进行了研究。所建立的解析解可用于设计和实际应用。
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引用次数: 7
Natural Volcanic Pozzolan-and Granulated Blast Furnace Slag-Based Alkali-Activated Repair Mortar 天然火山火山灰和粒状高炉渣基碱活化修复砂浆
Pub Date : 2019-02-01 DOI: 10.18178/ijscer.8.4.340-344
R. Robayo-Salazar, C. Jesus, R. M. Gutiérrez, F. Pacheco-Torgal
—An alkali-activated binary mortar (AABM) was studied as a possible alternative to traditional surface protection systems (coatings) or repair materials. A natural volcanic pozzolan (70%) and a granulated blast furnace slag (30%) were employed as precursors. According to standard specifications (EN 1504-3) and the properties of AABM the material was classified as a class R2-repair mortar. 
-研究了碱活化二元砂浆(AABM)作为传统表面保护系统(涂料)或修补材料的可能替代品。采用天然火山火山灰(70%)和粒状高炉矿渣(30%)作为前驱体。根据标准规范(en1504 -3)和AABM的性能,该材料被归类为r2级修补砂浆。
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引用次数: 1
Importance of Temporary Architecture and Permanence as an Obsolete Notion 临时建筑和永久性作为过时概念的重要性
Pub Date : 2018-12-01 DOI: 10.18178/ijscer.8.3.253-258
Çisem Soylu
Permanence is one of the qualities that has been attributed to architecture since the early ages of human settlements for several reasons such as economical, religious or nationalistic motivations. However, the paradigm shift that accompanied modernism has changed the ways that humankind lives and produces; the phenomena of obsolescence has emerged and new economical approaches as well as daily practices have shifted to a short-termed perception of time and the pace of change has accelerated. Creative destruction has become the fundamental point of origin to the modern design and construction practices. Primarily investigating the meaning of permanence absolute and relative permanenceand the drivers of building permanent structures based on the value of architecture both theoretically and historically, this study aims to examine the obtrusive conflict between the modern transformation towards short-termism and the building culture that remained solid in terms of temporaryness. Initiations for discovering ways of building temporary structures or applying short-termed or reusable materials have great importance today, although many examples of temporary architecture may be seen throughout the history of humankind, for a more sustainable, mobile and humble architecture. The conclusion objective of this paper is to track the first modern responses to the interchangeable urban texture during the second half of the twentieth century and how the idea has evolved in time, arriving to the recent applications of temporary modals in the means of structure and material. It is crucial that architecture adapts to this relatively new conjuncture as building life spans are dramatically decreasing and natural resources are at critical levels and temporary structures may be the answer. 
由于经济、宗教或民族主义动机等多种原因,自人类定居早期以来,建筑就一直具有永久性的特点。然而,伴随着现代主义的范式转变改变了人类的生活和生产方式;过时的现象已经出现,新的经济方法和日常做法已经转向短期的时间观念,变化的速度已经加快。创造性破坏已经成为现代设计和建筑实践的根本出发点。本研究主要研究永久性的意义——绝对永久性和相对永久性,以及基于建筑理论和历史价值的永久性建筑的驱动因素。本研究旨在研究现代向短期主义的转变与建筑文化在暂时性方面保持稳固之间的突出冲突。尽管在人类历史上可以看到许多临时建筑的例子,但对于更可持续、可移动和谦逊的建筑来说,发现建造临时结构或应用短期或可重复使用材料的方法的倡议在今天具有重要意义。本文的最后目标是追溯20世纪下半叶对可互换城市肌理的第一次现代回应,以及这一想法是如何随着时间的推移而演变的,直到最近临时情态在结构和材料方面的应用。随着建筑寿命急剧减少,自然资源处于临界水平,临时结构可能是答案,因此建筑适应这种相对较新的形势至关重要。
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引用次数: 0
Overtopping for Rubble Mound Breakwater Armoured with the New Block-Rakuna-IV 用新Block-Rakuna-IV装甲的碎石丘防波堤溢流
Pub Date : 1900-01-01 DOI: 10.18178/ijscer.8.1.40-45
H. Thi
The paper presents the physic model test results on wave flume about the ability of overtopping reduction of new amour unit-Rakuna IV through roughness factor γr. The results from 58 tests for Rakuna IV and Tetrapod showed that the wave overtopping reduction factor of this armour unit is not a constant but depends upon the breaker
本文介绍了利用粗糙度因子γ - r对新型装甲单元rakuna IV减顶能力进行波浪水槽物理模型试验的结果。Rakuna IV和四足兽的58次测试结果表明,这种装甲单位的波浪过顶减小系数不是恒定的,而是取决于断路器
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引用次数: 1
Flexural Behavior of RC Beams Strengthened with FRP Bars by Near-Surface Mounted Method 近表面安装法加固钢筋混凝土梁的抗弯性能
Pub Date : 1900-01-01 DOI: 10.18178/ijscer.8.4.372-383
Trung Tran Le Hoang, H. Masuya, K. Yoshimori, Hiroshi Yokoyama
The use of fiber-reinforced polymer (FRP) bars strengthened reinforced concrete (RC) structures by NearSurface Mounted (NSM) method plays a key role in the external strengthening and reinforcing of the structures. A series of static tests for RC beams strengthened by FRP NSM method was carried out to identify their effects on the actual response of such RC beams. In all experimental cases, using externally bonded FRP bars to the tensile region of RC beams by NSM method has improved significantly the flexural strength of the beams. Additionally, the numerical simulation had been done to reproduce the behavior of RC beams strengthened by FRP NSM method under static load. The reliable constitutive models and contact conditions were adopted adequately in these models. It was also shown that the numerical simulation result agrees well with the experimental result. Finally, the calculated equations based on the latest codes of design and construction of externally bonded FRP bars are presented in order to verify the flexural strength of the beams under static load. 
采用近表面安装法(NSM)对钢筋混凝土(RC)结构进行纤维增强聚合物(FRP)钢筋加固,在结构的外部加固和补强中起着关键作用。对FRP - NSM加固RC梁进行了一系列静力试验,以确定FRP - NSM加固对RC梁实际响应的影响。在所有的试验案例中,采用NSM方法在RC梁的受拉区使用外粘结FRP筋可以显著提高梁的抗弯强度。此外,还进行了数值模拟,再现了FRP - NSM加固RC梁在静荷载作用下的受力性能。这些模型充分采用了可靠的本构模型和接触条件。数值模拟结果与实验结果吻合较好。最后,根据最新的FRP外粘筋设计和施工规范给出了计算公式,以验证静荷载作用下梁的抗弯强度。
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引用次数: 1
Indoor Environment Quality Indicators in Co-Op Supermarkets in Kuwait 科威特合作超市室内环境质量指标研究
Pub Date : 1900-01-01 DOI: 10.35841/2630-4570-c2-008
Azel Almutairi
I n this paper, the indoor quality indicators were investigated in a Co-Operative (Co-Op) supermarket in Kuwait by both subjective and objective evaluations. A questionnaire with Likert scale basis was conducted to reflect the customers and workers health environment satisfaction. Measurements were carried out to examine the parameters that determine the air and acoustic pollution inside the Co-Op supermarket. The perceived air quality (PAQ) was calculated, and indoor air quality index (IAQ) was investigated. Three pollutants, carbon dioxide (CO2), carbon monoxide (CO), and formaldehyde (HCHO) were studied. The CO2 concentration was notably high.
本文对科威特一家合作社(Co-Op)超市的室内质量指标进行了主观和客观评价。采用李克特量表对顾客和员工的健康环境满意度进行问卷调查。进行了测量,以检查决定Co-Op超市内空气和声污染的参数。计算感知空气质量(PAQ),调查室内空气质量指数(IAQ)。研究了三种污染物:二氧化碳(CO2)、一氧化碳(CO)和甲醛(HCHO)。二氧化碳浓度非常高。
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引用次数: 0
Designing in Wood-Results of a Survey among Architects in Portugal 木质设计:葡萄牙建筑师调查结果
Pub Date : 1900-01-01 DOI: 10.18178/ijscer.12.3.106-111
J. Gagoa, P. Almeidaa, Pedro Mendesb
—This paper presents the results of the survey carried out with architects working in Portugal, regarding wooden construction. The study was carried out between 2021 and 2022 at the Faculty of Architecture of the University of Lisbon, and corresponds to a phase of the work of the first author aiming to his PhD degree in Architecture (in the field of Construction Technologies and Management), which addresses the applicability of the CLT (Cross-laminated Timber) system to mid-rise housing construction in Portugal. The survey aims to know the openness that currently exists by architects in Portugal regarding the use of wood as a constructive option, as well as the main difficulties that the architecture sector encounters when designing in wood. The results allow to characterize the current situation of designing and building in wood in Portugal, and to identify potentialities and difficulties. The results are useful for the development of ongoing research, and, in the near future, to design strategies in order to overcome any identified constraints.
本文介绍了与在葡萄牙工作的建筑师进行的关于木结构的调查结果。该研究于2021年至2022年在里斯本大学建筑学院进行,与第一作者的工作阶段相对应,他的目标是获得建筑学博士学位(建筑技术和管理领域),该研究解决了CLT(交叉层压木材)系统在葡萄牙中层住宅建筑中的适用性。该调查旨在了解葡萄牙建筑师目前对木材作为建设性选择的开放性,以及建筑部门在木材设计时遇到的主要困难。结果可以描述葡萄牙木材设计和建筑的现状,并确定潜力和困难。这些结果对正在进行的研究的发展,以及在不久的将来,设计策略以克服任何已确定的限制是有用的。
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引用次数: 0
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International journal of structural and civil engineering research
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