Second Order Effects on the Design of Slender Reinforced Concrete Bridge Columns

Denavit, Mark D; Esmaeelpour, Javad; Scott, Michael H.; Zhu, Minjie

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Second Order Effects on the Design of Slender Reinforced Concrete Bridge Columns

2024-10-01
By Denavit, Mark D ; Esmaeelpour, Javad ; Scott, Michael H.

File Language:

English

[PDF - 11.55 MB]

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Creators:

Denavit, Mark D ; Esmaeelpour, Javad ; Scott, Michael H. ; Zhu, Minjie
Corporate Creators:

Oregon State University. School of Civil and Construction Engineering ; University of Tennessee, Knoxville. Department of Civil and Environmental Engineering
Corporate Contributors:

California Department of Transportation. Division of Engineering Services
Subject/TRT Terms:
Publication/ Report Number:

CA24-3684
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

California. Department of Transportation
Abstract:

The AASHTO LRFD Bridge Design Specifications (AASHTO, 2017), hereafter referred to as AASHTO LRFD, includes an approximate method for the design of slender RC bridge columns. This approximate method, the method most commonly used by bridge engineers, was adapted from building design codes such as the ACI Building Code Requirements for Structural Concrete (ACI,2019), hereafter referred to as ACI 318. Accordingly, the AASHTO LRFD approximate method applies to a specific range of parameters and configurations based on floor framing stiffness, building story heights, and material properties and reinforcing ratios common to buildings. While some analogies carry over to bridge columns, the superstructure stiffness and unbraced column lengths can be quite different for bridge systems compared to buildings. The assumptions built into the approximate AASHTO LRFD method can lead to unsafe bridges in some cases and inefficient designs that are more costly than necessary in other cases.
Format:

PDF
Funding:

65A0774 TO 004
Download URL:

https://rosap.ntl.bts.gov/view/dot/85019/dot_85019_DS1.pdf
File Type:

[PDF - 11.55 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:682f3ded5e4e24426f003c8920dd1b469ac7ca6b9b4163f24ca24d545cab3d0e7b1f89f90072e8cb732549d2199b08f031259815965c1b5f12157c0167289dd6

File Language:

English

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