Study of Equivalent Static Wind Loads on a High-Rise Building with 204 Meters High

2011 ◽  
Vol 243-249 ◽  
pp. 985-988
Author(s):  
Qin Hua Wang ◽  
Bi Qing Shi ◽  
Ping Sheng Xu
Keyword(s):  
Wind Tunnel ◽  
Structure Design ◽  
Wind Engineering ◽  
Wind Loads ◽  
Building Structures ◽  
High Rise ◽  
High Rise Building ◽  
Load Response ◽  
Equivalent Static Wind Loads

Equivalent static wind loads (ESWL) are the bridge between engineer in the structure design field and researcher in wind engineering field. In this paper, a practical high-rise building with 204 meters high was tested in wind tunnel, and then ESWL was calculated by load-response correlation (LRC) method based on the results of wind tunnel. Some results are useful for design of building structures.

scholarly journals Study of Wind Loads and Wind Speed Amplifications on High-Rise Building with Opening by Numerical Simulation and Wind Tunnel Test

2020 ◽  
Vol 2020 ◽  
pp. 1-24
Author(s):  
Fu-Bin Chen ◽  
Xiao-Lu Wang ◽  
Yun Zhao ◽  
Yuan-Bo Li ◽  
Qiu-Sheng Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Wind Speed ◽  
Wind Tunnel ◽  
Wind Pressure ◽  
Wind Loads ◽  
Structural Safety ◽  
Pressure Coefficients ◽  
High Rise ◽  
High Rise Building ◽  
The Mean

High-rise buildings are very sensitive to wind excitations, and wind-induced responses have always been the key factors for structural design. Facade openings have often been used as aerodynamic measures for wind-resistant design of high-rise buildings to meet the requirement of structural safety and comfort. Obvious wind speed amplifications can also be observed inside the openings. Therefore, implementing wind turbines in the openings is of great importance for the utilization of abundant wind energy resources in high-rise buildings and the development of green buildings. Based on numerical simulation and wind tunnel testing, the wind loads and wind speed amplifications on high-rise buildings with openings are investigated in detail. The three-dimensional numerical simulation for wind effects on high-rise building with openings was firstly carried out on FLUENT 15.0 platform by SST k − ε model. The mean wind pressure coefficients and the wind flow characteristics were obtained. The wind speed amplifications at the opening were analyzed, and the distribution law of wind speed in the openings is presented. Meanwhile, a series of wind tunnel tests were conducted to assess the mean and fluctuating wind pressure coefficients in high-rise building models with various opening rates. The variation of wind pressure distribution at typical measuring layers with wind direction was analyzed. Finally, the wind speed amplifications in the openings were studied and verified by the numerical simulation results.

Interference Effects on High-Rise Buildings – Overview of the Recent Research

2014 ◽  
Vol 1057 ◽  
pp. 105-112
Author(s):  
Michal Franek ◽  
Juraj Žilinský
Keyword(s):  
Wind Tunnel ◽  
Wind Loads ◽  
Building Structures ◽  
Interference Effects ◽  
Wind Tunnel Tests ◽  
High Rise ◽  
Real Objects ◽  
Exposure Measurements

Wind loads on buildings are evaluated by using codes and standards. They are based on wind tunnel tests, which are performed on an isolated model in open exposure. Measurements by several researchers have shown that wind loads on real objects are considerably different than those on an isolated building. Structures around building decrease or increase the forces on building. This effect is termed interference. Interference includes geometry, layout and orientation of surrounding objects. Further aspects are direction of the wind and terrain conditions. For this reason it is necessary to evaluate interference before planning. The aim of the article is to overview the recent research, comparison between an isolated building and a group of buildings, to name the interference parameters and explain how they modify the forces on building. Also attempt to provide general recommendations for elementary models because this problem has large number of variations, especially for complicated models where it is necessary to evaluate the specific type of building. These recommendations should be used by designers and planners of the buildings.

The Conceptual Design of High-Rise Structures

2011 ◽  
Vol 99-100 ◽  
pp. 46-50
Author(s):  
Ming Chen Xue ◽  
Yong Sheng Zhao
Keyword(s):  
Conceptual Design ◽  
Structure Design ◽  
Building Structures ◽  
Building Structure ◽  
Structural System ◽  
Seismic Line ◽  
High Rise ◽  
High Rise Building

In this paper, the contents, meaning and importance of conceptual design in the high-rise building structure design are explored from the following respects: structural system, facade layout and multi-channel seismic line. It not only provides a strong protection of concept for calculation of high-rise building structures, but also accumulates some experience for the research on conceptual design of high-rise structures.

scholarly journals Wind Analysis of High-Rise Building Resting on Sloping (Hilly) Grounds of Federal Capital Territory, Abuja, Nigeria

2020 ◽  
pp. 21-34
Author(s):  
Roy O. Ononye ◽  
Kevin C. Okolie ◽  
F. O. Ezeokoli ◽  
S. C. Ugochukwu
Keyword(s):  
Response Spectrum ◽  
Wind Loads ◽  
Building Structures ◽  
Sloping Ground ◽  
High Rise ◽  
High Rise Building ◽  
Wind Analysis ◽  
Key Factor ◽  
Speed Up ◽  
Wind Induced Vibration

The importance of wind induced vibration is a key factor in the analysis, design and construction of high-rise building structures. Owing to scarce land resources, urbanization and ever-growing demand for accommodation is leading developers into sloping (hilly) grounds which in turn requires researches on the structural equilibrium of these structures. This study draws to mind the requirements of a fast-growing city of the Federal Capital Territory, FCT, Abuja considering her vast undulating planes and plateaus, high altitudes and windspeeds (50 m/s). Here therein, lies a comparative study of different types of building configurations and responses for sloping grounds using approaches form seismic analyses as a background to achieving set objectives. The study therefore, attempts the application of a commonly used method (Static Wind Analysis, SWA) for analysis of wind loads on structures and also understudying the outcomes of applying the same loads using dynamic method (Response Spectrum Analysis, RSA). STAAD Pro V8i software was used to synthesize both analyses using the ASCE 705 code (wind speed-up over Hills) on 40 models for each analysis method for a 3x5 planar building configurations (G+6, G+8, G+12 and G+18) on grounds (0°, 6°, 14°, 18°, and 27°). The findings confirmed the complexities of sloping ground buildings with a greater chance of vibration and sway for SWA than in RSA. It was concluded, that the Stepback-setback (STPB-SETB) frames were better configured to combat wind loads on sloping grounds for both analyses. Recommendations includes, prioritizing the construction industry, collaboration with international bodies on High-rise development, developing a data base and wind testing facilities.

scholarly journals Issues of contemporary wind engineering and aerodynamics of building structures

2016 ◽  
Vol 15 (3) ◽  
pp. 029-051 ◽  
Author(s):  
Tomasz Lipecki ◽  
Paulina Jamińska
Keyword(s):  
Wind Tunnel ◽  
Numerical Simulations ◽  
In Situ Measurements ◽  
Wind Engineering ◽  
Wind Loads ◽  
Building Structures ◽  
Wind Tunnel Tests

The paper reviews nowadays problems and issues of wind engineering and aerodynamics of building structures. The article mainly focuses on aerodynamics of building structures, shortly characterizing theoretical bases, which one must take into account when assuming wind loads. The three different approaches of collecting information in the field of wind loads are described: in-situ measurements, wind tunnel tests and numerical simulations. Also, a review of the most important contemporary issues of wind engineering is presented.

scholarly journals Investigation of the Time Dependence of Wind-Induced Aeroelastic Response on a Scale Model of a High-Rise Building

2021 ◽  
Vol 11 (8) ◽  
pp. 3315
Author(s):  
Fabio Rizzo
Keyword(s):  
Wind Tunnel ◽  
Time Dependence ◽  
Wind Tunnel Test ◽  
Structural Response ◽  
Cumulative Distribution ◽  
Scale Model ◽  
Acquisition Time ◽  
Test Results ◽  
High Rise ◽  
High Rise Building

Experimental wind tunnel test results are affected by acquisition times because extreme pressure peak statistics depend on the length of acquisition records. This is also true for dynamic tests on aeroelastic models where the structural response of the scale model is affected by aerodynamic damping and by random vortex shedding. This paper investigates the acquisition time dependence of linear transformation through singular value decomposition (SVD) and its correlation with floor accelerometric signals acquired during wind tunnel aeroelastic testing of a scale model high-rise building. Particular attention was given to the variability of eigenvectors, singular values and the correlation coefficient for two wind angles and thirteen different wind velocities. The cumulative distribution function of empirical magnitudes was fitted with numerical cumulative density function (CDF). Kolmogorov–Smirnov test results are also discussed.

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