Publications

Displaying 26 - 50 of 111

Database-Assisted Design and Equivalent Static Wind Loads for Mid- and High-Rise Structures: Concepts, Software, and Users Manual

June 28, 2018

Author(s)

Sejun Park, Donghun Yeo, Emil Simiu

This report presents the software DAD_ESWL v1.0 capable of computing efficiently the response to wind of mid- and high-rise structures consisting of up to thousands of members. The report also documents the following features of the software: (1) Use of

Introductory Tutorial for DAD: Design Examples of High-Rise Building for Wind

June 28, 2018

Author(s)

Sejun Park, Donghun Yeo

This report presents the introductory tutorials for the use of the software DAD_ESWL v1.0 capable of computing efficiently the response to wind of mid- and high-rise structures consisting of up to thousands of members.

Calibration of Dynamic Pressure in a Tubing System and Optimized Design of Tube Configuration: A Numerical and Experimental Study

June 12, 2018

Author(s)

Matthew Kovaerk, Luke Amatucci, Keith A. Gillis, Florian Potra, James Ratino, Marc L. Levitan, DongHun Yeo

Accurate prediction of aerodynamic pressures on a building is a key factor in the estimation of wind loads on the building. Since the analytical approach has limited capacity in providing pressure estimates, wind tunnel testing is widely used. The

Second-Order Effects on Wind-Induced Structural Behavior of High-Rise Steel Buildings

December 8, 2017

Author(s)

Sejun Park, Donghun Yeo

This paper investigates P-Δ effects on wind-induced structural dynamic behavior of a 60-story high-rise steel structure known as the CAARC building model. These effects are considered in the structural analysis by using a geometric stiffness method

WIND LOAD FACTORS FOR USE IN THE WIND TUNNEL PROCEDURE

December 1, 2017

Author(s)

Emil Simiu, Adam L. Pintar, Dat Duthinh, DongHun Yeo

A 2005 Skidmore Owings and Merrill report notes that the ASCE 7 Standard is incomplete insofar as it provides no guidance on wind load factors appropriate for use with the Standards wind tunnel procedure. The purpose of this paper is to contribute to such

Large Eddy Simulations of Model-Scale Turbulent Atmospheric Boundary Layer Flows

May 8, 2017

Author(s)

Liang Shi, DongHun Yeo

This paper presents large eddy simulations (LES) of model-scaled neutrally stratified atmospheric boundary layer (ABL) flows for structural engineering applications and examines their statistical properties. A one-k-equation eddy model is used for the

PLANETARY BOUNDARY LAYER MODELING AND STANDARD PROVISIONS FOR TALL BUILDING DESIGN

March 31, 2017

Author(s)

Emil Simiu, N. Alan Heckert, DongHun Yeo

According to recent results of Planetary Boundary Layer research relevant to tall building design, for elevations of up to at least 1 km: (i) the longitudinal mean wind speeds are monotonically increasing with height, and (ii) veering angles are negligible

ITERATIVE DESIGN OF RIGID STRUCTURES FOR WIND USING TIME SERIES OF DEMAND-TO-CAPACITY INDEXES

February 1, 2017

Author(s)

Filmon Habte, Arindam Chowdhury, DongHun Yeo, Emil Simiu

Estimates of wind effects on rigid buildings by database-assisted design (DAD) methods can be far more accurate than those based on information available in standards. An upgraded version of DAD is presented that streamlines the wind engineering/structural

OpenFOAM large-eddy simulations of atmospheric boundary layer turbulence for wind engineering applications

November 29, 2016

Author(s)

Liang Shi, Donghun Yeo

Statistical properties such as the spectral density and spatial coherence of boundary layer turbulence affect bluff body aerodynamics and structural responses. In this report, the open-source toolbox OpenFOAM is employed to perform LES simulations of

A practical verification and validation approach for Computational Wind Engineering simulations using an experimental design technique

November 23, 2016

Author(s)

R?onn Mac R?oinn, DongHun Yeo

Understanding the sensitivity of computational wind engineering (CWE) solutions to simulation parameters facilitates the development of useful solutions. The traditional approach adopted in other fields through verification and validation (V&V) with well

Database-assisted Design and second-order effects on the wind-induced structural behavior of high-rise steel buildings

October 31, 2016

Author(s)

Sejun Park, Donghun Yeo

This work presents an investigation into second-order effects on the wind-induced structural dynamic behavior of high-rise steel structure, as considered within a Database-assisted Design (DAD) context. A geometric stiffness method that accounts for second

RANS and Hybrid LES/RANS Simulations of Flow over a Square Cylinder

June 11, 2016

Author(s)

Jianghua Ke, DongHun Yeo

Unsteady RANS (URANS) and Hybrid LES/RANS (specifically IDDES) simulations were conducted to numerically investigate the velocity field around, and pressures distribution and forces over a square cylinder immersed in a uniform, steady oncoming flow with

PLANETARY BOUNDARY LAYER MODELING AND TALL BUILDING DESIGN

January 1, 2016

Author(s)

Emil Simiu, Liang Shi, DongHun Yeo

Recent research into Planetary Boundary Layer (PBL) flows accounts for the difference between �neutral� and �conventionally neutral� flows. Of interest in structural engineering are �conventionally neutral� PBL flows, that is, flows affected by transport

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