Chapter
Apr 26, 2012
Drilled Shaft Design for Transmission Structures Using LRFD and MRFD
Publication: Deep Foundations 2002: An International Perspective on Theory, Design, Construction, and Performance
Abstract
Simplified reliability-based design (RBD) equations are developed that are suitable for transmission line structure and similar foundations. Two formats, Load and Resistance Factor Design (LRFD) and Multiple Resistance Factor Design (MRFD), are calibrated rigorously using the First-Order Reliability Method to produce designs that achieve a known level of reliability consistently. Based on comparisons with existing designs, target reliability indices of 3.2 and 2.6 are proposed for ultimate and serviceability limit states, respectively. Illustrative drilled shaft design calculations are given using these formats.
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Information
Published In
Deep Foundations 2002: An International Perspective on Theory, Design, Construction, and Performance
Pages: 1006 - 1017
Copyright
© 2002 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Design (by type)
- Drilled pier foundations
- Drilled shafts
- Electric power
- Energy engineering
- Energy infrastructure
- Engineering fundamentals
- Foundation design
- Foundations
- Geotechnical engineering
- Infrastructure
- Lifeline systems
- Load and resistance factor design
- Load factors
- Power transmission
- Power transmission lines
- Shafts
- Structural design
- Structural reliability
- Tunnels
Authors
Affiliations
M.ASCE
Assistant Professor, Department of Civil Engineering, National University of Singapore, Block E1A #07-03, 1 Engineering Drive 2, Singapore 117576. E-mail: [email protected]
F.ASCE
Professor, School of Civil and Environmental Engineering, Cornell University, Hollister Hall, Ithaca, New York 14853-3501. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.