Spectral Density at Roof of Setback Tall Building Due to Time Variant Wind Load

2020 ◽  
pp. 21-29
Author(s):  
Amlan Kumar Bairagi ◽  
Sujit Kumar Dalui
Keyword(s):  
Spectral Density ◽  
Wind Load ◽  
Tall Building

Wind-resistant design and equivalent static wind load of base-isolated tall building: A case study

2020 ◽  
Vol 212 ◽  
pp. 110533 ◽  
Author(s):  
Zhihao Li ◽  
Guoqing Huang ◽  
Xinzhong Chen ◽  
Ying Zhou ◽  
Qingshan Yang
Keyword(s):  
Wind Load ◽  
Tall Building ◽  
Equivalent Static Wind Load

Wind Force on Tall Structure: An Approach From SPH

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Ananna Ahmed ◽  
Abdullah Hil Baki ◽  
Munaz Ahmed Noor
Keyword(s):  
Structural Engineering ◽  
Model Simulation ◽  
Wind Load ◽  
Tall Building ◽  
Test Method ◽  
Wind Pressure ◽  
Wind Force ◽  
Wide Range ◽  
Particle Hydrodynamics ◽  
Tall Structure

Wind pressure calculation for tall building frame has always been an extensive job. Usual methods used to estimate wind load are Wind tunnel test method and Finite Element Method and specifications has been derived. In this research, with a view to eliminating drawbacks of these methods and providing a visual interpretation of wind flow a third method is introduced using Smooth Particle Hydrodynamics (SPH) Approach. A model simulation was performed by a SPH software named SPHysics to calculate the pressure exerted on the structure and to derive a graphical interpretation of flow pattern using Para View. Values of pressure at different elevation of the building that actually occurs when wind with certain velocity flows through a tall building are found. From the data found, height vs. pressure graphs are generated which clearly supports the proportional relationship between these two parameters even with triangular and parabolic variation. Again, velocity vs. pressure graphs are plotted which also justifies inter-relationship of proportionality. This is a qualitative comparison not a quantitative one as there is many limitations regarding technicality, computer capacity, and time. These values may be crosschecked with the values found from conventional methods when more precise and suitable boundary conditions can be used in simulation. In future, with intricate detailing and suitable three dimensional modeling, more accurate value of pressure can be found with wide range of applicability. The authors are expecting derivation of two equations as a function of height and velocity to calculate wind load to use in design if further proceeding is possible. This can offer a significant benefit of simplicity for users and can be beginning a new era of using SPH in structural engineering.   Keywords - Wind force, tall structure, Particle Hydrodynamics Approach

Effects of Irregularity on a Butterfly Plan-Shaped Tall Building under Wind Load

2021 ◽  
Author(s):  
Sourav Bhattacharjee ◽  
Sayantan Banerjee ◽  
Saptaparni Ghosh Majumdar ◽  
Arpan Dey ◽  
Prasenjit Sanyal
Keyword(s):  
Wind Load ◽  
Tall Building

Effect of Precast Cladding on the Wind Load Response of Tall Building Structures

PCI Journal ◽  
1993 ◽  
Vol 38 (2) ◽  
pp. 72-84
Author(s):  
Regina Gaiotti ◽  
Bryan Stafford Smith
Keyword(s):  
Wind Load ◽  
Tall Building ◽  
Building Structures ◽  
Load Response

Wind Induced Vibration of a Super Tall Building Considering the Variations of its Damping

2012 ◽  
Vol 433-440 ◽  
pp. 1470-1473
Author(s):  
An Xu
Keyword(s):  
Great Degree ◽  
Wind Direction ◽  
Structural Response ◽  
Nonlinear Damping ◽  
Wind Load ◽  
Tall Building ◽  
Wind Loads ◽  
Result Show ◽  
Study Case ◽  
Wind Induced Vibration

In this paper, a improved algorithm based on Newmark-βto analyze the structural response under wind loads was presented and enhance the calculation efficiency in a great degree. The GWT was presented as an study case and its response under wind load was calculated by the proposed method. Nonlinear damping was taken into consideration in calculation. The result show that the structural RMS response in cross-wind direction is much larger than that in along-wind direction.

Bracing Systems for Seismic and Wind Performance of Tall Buildings

2013 ◽  
Vol 650 ◽  
pp. 667-672 ◽  
Author(s):  
Dong Keon Kim ◽  
Jong Wan Hu
Keyword(s):  
Base Isolation ◽  
Tall Buildings ◽  
Wind Load ◽  
Tall Building ◽  
Structural Safety ◽  
Seismic Load ◽  
Isolation System ◽  
Seismic Codes ◽  
The World ◽  
Base Isolation System

Occurrence of frequency of earthquakes around the world has been increased including Sendai earthquake in Japan and magnitude of earthquake has also increased. Recently, many tall buildings using local seismic codes can be exposed to the risk of an earthquake and wind. Also, some buildings, which was planned to be built, were foundered as a result of lack of finance. Therefore, for tall buildings, structural safety such as earthquake and wind resistant performance, and financing issue are very important to progress the huge project. So we need to find another optimum alternative other than damping devices and base isolation system. In this study, four types of test specimens are used, which are fifty-story base tall building, tall building that was reinforced with diagonal brace, x-brace, and Chevron brace. And all of these cases, are subjected to the seismic load and wind load, finally analyzed and compared for seismic and wind performances.

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