Asymmetric vibration of finger-type bridge expansion joint for design consideration

Goangseup Zi; Xingji Zhu

doi:10.1016/j.engstruct.2014.03.018

Asymmetric vibration of finger-type bridge expansion joint for design consideration

Goangseup Zi, Xingji Zhu

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

An asymmetric vibration is proposed for the design consideration of finger-type bridge joints. It is shown, both experimentally and numerically, that the vibration of the joint-plate is not symmetric, but asymmetric; and that the end moment of finger-type bridge joints becomes maximum when the joint plate springs upward, after the load moves out from the joint, in which the tension of the anchor bolts due to this upturned vibration is much greater than the static load case with the load at the tip of the joint-plate. A simplified design formula is developed based on an energy concept, to consider this new failure mode in the design procedure. It is shown that the actual maximum moment and tension can be closely estimated by a simple formula.

Original language	English
Pages (from-to)	53-62
Number of pages	10
Journal	Engineering Structures
Volume	70
DOIs	https://doi.org/10.1016/j.engstruct.2014.03.018
Publication status	Published - 2014 Jul 1

Bibliographical note

Funding Information:
This work was supported by Korea Institute of Energy Technology Evaluation and Planning (KETEP) (Grant No. R1400331 ) and the project titled as “Development of design basis and concrete technologies for offshore wind turbine support structures/20120093” funded by Ministry of Oceans and Fisheries, Korea .

Keywords

Asymmetric vibration
Design formula
Dynamic amplification factor
Energy conservation
Finger joints

ASJC Scopus subject areas

Civil and Structural Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.engstruct.2014.03.018

Cite this

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abstract = "An asymmetric vibration is proposed for the design consideration of finger-type bridge joints. It is shown, both experimentally and numerically, that the vibration of the joint-plate is not symmetric, but asymmetric; and that the end moment of finger-type bridge joints becomes maximum when the joint plate springs upward, after the load moves out from the joint, in which the tension of the anchor bolts due to this upturned vibration is much greater than the static load case with the load at the tip of the joint-plate. A simplified design formula is developed based on an energy concept, to consider this new failure mode in the design procedure. It is shown that the actual maximum moment and tension can be closely estimated by a simple formula.",

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AU - Zi, Goangseup

AU - Zhu, Xingji

N1 - Funding Information: This work was supported by Korea Institute of Energy Technology Evaluation and Planning (KETEP) (Grant No. R1400331 ) and the project titled as “Development of design basis and concrete technologies for offshore wind turbine support structures/20120093” funded by Ministry of Oceans and Fisheries, Korea .

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N2 - An asymmetric vibration is proposed for the design consideration of finger-type bridge joints. It is shown, both experimentally and numerically, that the vibration of the joint-plate is not symmetric, but asymmetric; and that the end moment of finger-type bridge joints becomes maximum when the joint plate springs upward, after the load moves out from the joint, in which the tension of the anchor bolts due to this upturned vibration is much greater than the static load case with the load at the tip of the joint-plate. A simplified design formula is developed based on an energy concept, to consider this new failure mode in the design procedure. It is shown that the actual maximum moment and tension can be closely estimated by a simple formula.

AB - An asymmetric vibration is proposed for the design consideration of finger-type bridge joints. It is shown, both experimentally and numerically, that the vibration of the joint-plate is not symmetric, but asymmetric; and that the end moment of finger-type bridge joints becomes maximum when the joint plate springs upward, after the load moves out from the joint, in which the tension of the anchor bolts due to this upturned vibration is much greater than the static load case with the load at the tip of the joint-plate. A simplified design formula is developed based on an energy concept, to consider this new failure mode in the design procedure. It is shown that the actual maximum moment and tension can be closely estimated by a simple formula.

KW - Asymmetric vibration

KW - Design formula

KW - Dynamic amplification factor

KW - Energy conservation

KW - Finger joints

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Asymmetric vibration of finger-type bridge expansion joint for design consideration

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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