Wind Loads on Non-Building Structures Using ASCE 7-10

Wong, Silky; Sepaha, Ankur; Swamy, Naga; Amoroso, Samuel D.; Naqvi, Dawar

doi:10.1061/9780784412367.128

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Velocity pressure is determined based on the mass density of air for the standard atmosphere (1.23 kg/m 3 ). This standard does not include the force coefficients for open frame structures considering shielding effects; instead, Chapter 5 of [2] is the best method to be employed in this study as the detail pipe rack design information was provided [18].…”

Section: Selected Wind Loading Standards/codes For the Studymentioning

confidence: 99%

A Comparative Study of International Wind Load Standards for Pipe Rack Modules

Wong¹,

Wey²,

Letchford³

et al. 2015

Structures Congress 2015

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The latest ASCE report "Wind Loads on Petrochemical and Other Industrial Structures" acknowledges some international documents and resources that guide the practicing engineer who is involved in reviewing designs or analyzing wind loads on structures at international Petrochemical facilities. Despite the consensus and increased uniformity in wind load determination within the profession, engineers are frequently confronted with situations where multiple country standards are required to be used for the same project. This presents significant challenges to designers, caution is required when applying and interpreting multiple codes and standards. This paper describes a comparison of design wind load calculations for pipe rack structures based on seven major international codes and standards: ASCE 7-. A parametric study of a pipe rack module located in non-hurricane area supporting piping, electrical cables and equipment is presented. This simple case study highlights comparative approaches and data among the selected standards. Recommendations based on the study findings and the application of standards in wind loads on pipe rack modules are provided.

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Section: Selected Wind Loading Standards/codes For the Studymentioning

confidence: 99%

A Comparative Study of International Wind Load Standards for Pipe Rack Modules

Wong¹,

Wey²,

Letchford³

et al. 2015

Structures Congress 2015

Self Cite

View full text Add to dashboard Cite

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“…[2][3][4] FAM is also used for solving other kinds of nonlinear problems. Collapse of structures with nonlinear modal analysis, [5] concrete shear walls, [6] energy in structures and damage indexes, [7] structural control, [8] and modeling the influence of corrosion on structural behavior through pushover analysis [9] are some examples for using it recent studies.Different from nonlinear FEM, stiffness matrices remain unchanged during nonlinear analysis process of FAM. This is one of the greatest advantages of FAM in comparison with equivalent calculations in FEM.…”

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confidence: 99%

A force analogy method (FAM) assessment on different static condensation procedures for frames with full Rayleigh damping

Bahar

2018

Structural Design Tall Build

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In this paper, influence of different static condensation methods on nonlinear time history response of structures in presence of full Rayleigh damping matrix has been studied. Equation of motion is derived in details for 2 newly introduced cases; Full Static Condensation Model and Reduced Static Condensation Model (RSCM or RSCM-1). Nonlinear analyses are performed with state-space form of equation of motion along with force analogy method. A novel aspect of this study in comparison with previous researches is to consider full Rayleigh damping in formulations for static condensation in nonlinear structural analysis. Numerical examples are presented for the proposed methods. In addition, the same structure was modeled in finite element method and analyzed by the OpenSEES program. Comparisons demonstrate that results, which are obtained from introduced methods in this article, are in good agreement with the finite element method results. In addition to explaining the equation derivations in main article, proofs for some equations have been demonstrated in appendices. The comparisons show that both RSCM and Full Static Condensation Model lead to almost the same results but in case of using RSCM-1, the responses have some deviation from other condensation methods. KEYWORDS force analogy method (FAM), FSCM, RSCM, static condensation, nonlinear dynamic analysis, Rayleigh damping 1 | INTRODUCTIONAt the beginning of using computers in structural analysis, dynamic and time history analyses were performed only in linear elastic fields. By improvements in computer abilities, the possibility of nonlinear structural analysis in computer programs became more applicable. Finite element method (FEM) was widely used for this purpose, and many researches and developments have been introduced for this method during past years.Lin [1] proposed another method almost at the same time of introduction of FEM. It was called force analogy method (FAM). FAM has not become as popular as FEM, [2] although it has many advantages and abilities. In recent years, FAM took attention again and has been used for nonlinear dynamic analysis of frames in some researches. [2][3][4] FAM is also used for solving other kinds of nonlinear problems. Collapse of structures with nonlinear modal analysis, [5] concrete shear walls, [6] energy in structures and damage indexes, [7] structural control, [8] and modeling the influence of corrosion on structural behavior through pushover analysis [9] are some examples for using it recent studies.Different from nonlinear FEM, stiffness matrices remain unchanged during nonlinear analysis process of FAM. This is one of the greatest advantages of FAM in comparison with equivalent calculations in FEM. [4] Stiffness matrices must be recalculated in each time step during nonlinear stage in FEM. Therefore, using FAM instead of FEM can greatly reduce the costs of nonlinear analysis.The importance of Rayleigh damping was investigated by Erduran. [10] He found out that "mass-proportional" damping will lead to high damping force...

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Wind Loads on Non-Building Structures Using ASCE 7-10

Cited by 2 publications

References 3 publications

A Comparative Study of International Wind Load Standards for Pipe Rack Modules

A Comparative Study of International Wind Load Standards for Pipe Rack Modules

A force analogy method (FAM) assessment on different static condensation procedures for frames with full Rayleigh damping

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