Influence of an upstream building on the wind-induced mean suction on the flat roof of a low-rise building

Pindado, Santiago; Meseguer, José; Franchini, Sebastián

doi:10.1016/j.jweia.2011.06.003

Cited by 35 publications

(13 citation statements)

References 28 publications

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“…The electronic pressure-scanning module converts them to high-level electronic signals. This system is a globally proven equipment for wind tunnel experiments in the construction, civil, and aerospace fields [22][23][24][25]. This electronic pressure-scanning module can accurately measure unsteady pressure signals within a small margin of error.…”

Section: Experimental Settingmentioning

confidence: 99%

Feasibility Study of Fluctuating Wind Pressure around High-Rise Buildings as a Potential Energy-Harvesting Source

Park¹,

Kim²,

Jung³

2019

Energies

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As the importance of sustainable energy increases, wind power generation systems utilizing wind energy around high-rise buildings are being developed. However, in existing wind turbine systems, it is necessary to solve noise, vibration problems, and structural issues for the installation of large-sized systems. In addition, small wind turbine systems can be installed only in limited areas such as roofs and corners, because their efficiency is limited to high and stable wind speed. For this reason, the distribution of fluctuating wind pressure around high-rise buildings was analyzed, and its feasibility as an energy source was evaluated, reflecting that fluctuating wind pressure can be used in vibration-based energy-harvesters. To achieve this, firstly, experimental conditions and theories were established to check the characteristic of wind pressure around high-rise buildings. The experiment was divided into the environment without surrounding buildings and the urban environment. Next, the pressure distribution around high-rise buildings and the quantitative results obtained from the experiment were determined. Finally, based on the results obtained from the experiments, the feasibility of fluctuating wind pressure as an energy-harvesting source was analyzed. From this study, it was found that fluctuating wind pressure can be used as a new energy source at new locations of high-rise buildings that were not utilized previously.Energies 2019, 12, 4032 2 of 31 with other systems. The Bahrain World Trade Center was the first building with large wind turbines. The two buildings support three 29-m-diameter horizontal-axis wind turbine (HAWT) systems. informed that the amount of energy using the integrated BIWT systems was almost 1100-1300 MWh per year [5]. This result was 11-15% of the total consumed energy of the building. The Bahrain World Trade Center is shown in Figure 1a. Pearl River Tower was designed to be a zero-energy building [6]. This building has two open spaces between three parts of the building. Eight 5-m-diameter Darrieus wind turbines are set up in the area of open space. Pearl River Tower is shown in Figure 1b. Strata Tower is a new 43-storey, 148-m-tall tower designed for sustainable regeneration [7]. This tower has three HAWT systems at the top of the building, and the diameter of their rotors is 9 m. Strata Tower is shown in Figure 1c. Although these systems have the advantage of producing large-scale electricity, they have drawbacks such as the need to consider noise, vibration problems, and structural factors due to their large size. In order to install large-scale BIWT systems in high-rise buildings, the structural issues have to be considered in the design process. Energies 2019, 12, x FOR PEER REVIEW 2 of 31 Figure 1. Large-scale building-integrated wind turbine (BIWT) systems: (a) Bahrain World Trade Center [5]; (b) Pearl River Tower [6]; (c) Strata Tower [7].

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Section: Experimental Settingmentioning

confidence: 99%

Feasibility Study of Fluctuating Wind Pressure around High-Rise Buildings as a Potential Energy-Harvesting Source

Park¹,

Kim²,

Jung³

2019

Energies

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“…In Table 2, consensus has been achieved on the effects of most of these parameters such as the roof shape, the roof pitch, and the building geometry, while different opinions exist on whether surrounding structures cause enhancement or shielding effects due to the cancellation of various factors. Each of the affecting parameters has been studied including the ratio of building height to mean spacing (e.g., [54]), the interference factor (IF) (e.g., [55]), and the building area density (e.g., [56]). Gavanski et al [52] categorically evaluated such combined actions by comparing measured external pressure coefficient contours from 87 building configurations and concluded that the effect of surrounding structures for design can be neglected.…”

Section: Wind Load Characterizationmentioning

confidence: 99%

A review of wood-frame low-rise building performance study under hurricane winds

Fang

Cai

2017

Engineering Structures

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The unsatisfying performance of light-frame low-rise buildings under hurricane winds is a long-standing issue. Most past research effort has been made in creating a wind pressure database using advanced testing facilities, studying "cutout" subassemblies (i.e., roof subassemblies/sheathed shear walls) without considering the imparted influences of the whole system, analyzing load transfer mechanisms within full building models in the linear range, and quantifying building performance for the purpose of estimating economic losses. What still remains unclear is the contribution of some key factors, such as the simplified spatial-temporal varying wind loads, the resolution of numerical models, and the building component capacities, with large uncertainties, to the ultimate building performance. This paper aims to review the state-of-the-art research of four related disciplines that may contribute to a rational building performance assessment from an engineering perspective. Hurricane hazards, public wind pressure databases, and design wind loads are reviewed to indicate the importance of parameters other than wind speed to the building performance. The evolution of the low-rise building FE modeling is summarized with an emphasis on the connection modeling as well as their comparisons with experimental measurements. The quantification of the building performance is discussed by using stochastic finite element modeling techniques. At last, areas requiring future studies are identified to fill knowledge gaps.

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“…Liu (2006) considered the ratio of the mean windward area of a building and the mean occupied area as the parameter of building density and performed a wind tunnel test to study the effects of this parameter on the wind pressure coefficients of three zones, namely, corners, eaves, and interior, in the complicated roof of a low-rise building. Pindado et al (2011) analyzed the effect of an upstream building on the suction forces on the flat roof of a low-rise building in the wake. The influence of the distance between both buildings on the wind loads on the downstream building roof was analyzed, including the height of the upstream one and the wind angle of incidence.…”

Section: Wind Tunnel Testmentioning

confidence: 99%

Shielding Effects of Surrounding Buildings on Wind Loads on Low-Rise Building Roofs

Quan

Tamura

et al. 2014

Advances in Structural Engineering

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Low-rise buildings are often built in groups, and their wind loads differ from those on isolated buildings. In this study, the wind pressures on flat roofs of low-rise buildings surrounded by similar buildings were measured with a series of wind tunnel tests. The general properties of the shielding effects of surrounding buildings were discussed. The effects of area density, relative height, and arrangement patterns of the surrounding buildings on the shielding factors of the smallest minimum negative extreme wind pressure coefficients and of the largest peak uplift force coefficients on the whole roof of the shielded building for all wind directions were analyzed. For practical purposes, both shielding factors were expressed as equations of the building area density and the relative height of the surrounding buildings based on the wind tunnel test data, which can cover most of the test results.

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Influence of an upstream building on the wind-induced mean suction on the flat roof of a low-rise building

Cited by 35 publications

References 28 publications

Feasibility Study of Fluctuating Wind Pressure around High-Rise Buildings as a Potential Energy-Harvesting Source

Feasibility Study of Fluctuating Wind Pressure around High-Rise Buildings as a Potential Energy-Harvesting Source

A review of wood-frame low-rise building performance study under hurricane winds

Shielding Effects of Surrounding Buildings on Wind Loads on Low-Rise Building Roofs

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