Database-Assisted Design: Performance-Based Approach for Dynamically Sensitive Steel and Reinforced Concrete Structures

Published

October 31, 2024

Author(s)

Daniel Rhee, DongHun Yeo, Mehedy Mashnad, Brian Carman, Charys Clay

Abstract

This NIST Technical Note presents the User's Manual for the DAD_PBD version 2.0 software, a user-friendly tool for the advanced structural design of dynamically sensitive steel and reinforced concrete buildings. The software utilizes the Database-Assisted Design (DAD) procedure, which was developed and continuously improved at NIST. The method employs time-domain analysis, directional aerodynamic pressure data, and wind climatological data specific to a local site to design a structure in the site for wind, demonstrating superior performance in the estimation of the peak from combined wind effects and the consideration of wind directionality effects. The DAD method has been advanced over the past decade, improving its accuracy and practicality. The most recent work at NIST includes Python-based DAD_PBD software incorporating ETABS software to enhance accessibility for practicing structural engineers and improve computational efficiency. However, the previous software was only applicable to rectangular-shaped steel-framed buildings. To address these limitations, the DAD_PBD software was further enhanced with the following additional features: 1) expansion of its application to reinforced concrete buildings consisting of shear walls, columns, and link beams 2) assignment of distributed wind loads to building envelope, which is more appropriate for irregular-shaped buildings and buildings with asymmetric structural systems, 4) use of commercial design software for calculating the PMM interaction diagrams for reinforced concrete members with various shapes, 4) parallel run of ETABS analyses, which significantly reduces the computational time required for constructing response surfaces for design parameters. Also, any features previously introduced in the DAD_PBD version 1.0 software for steel-framed buildings remain relevant to this updated version. The DAD_PBD version 2.0 software empowers structural engineering practitioners to execute advanced structural design of irregular-shaped tall buildings with steel and reinforced concrete members under the concept of performance-based wind design. This report also showcases a design example of 45-story reinforced concrete buildings, illustrating the software's practical application.

Citation

Technical Note (NIST TN) - 2308

Report Number

2308

NIST Pub Series

Technical Note (NIST TN)

Pub Type

NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.TN.2308

Local Download

Keywords

Climatological data, Database-Assisted Design (DAD), ETABS, High-rise buildings, Irregular-shaped buildings, Parallel computing, Reinforced-Concrete Structures, Steel structures, Structural design, Structural dynamics, Wind effects.

Citation

Rhee, D. , Yeo, D. , Mashnad, M. , Carman, B. and Clay, C. (2024), Database-Assisted Design: Performance-Based Approach for Dynamically Sensitive Steel and Reinforced Concrete Structures, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.2308, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=958587 (Accessed November 20, 2024)