Multi-stressor fatigue assessment of steel sign-support structures: A case study in Iowa

2019 ◽  
Vol 200 ◽  
pp. 109721 ◽  
Author(s):  
Saeed Arabi ◽  
Behrouz Shafei
Keyword(s):  
Support Structures ◽  
Fatigue Assessment ◽  
Sign Support Structures

Behavior of Monotube Highway Sign Support Structures

1988 ◽  
Vol 114 (12) ◽  
pp. 2755-2772
Author(s):  
Mohammad R. Ehsani ◽  
Reidar Bjorhovde
Keyword(s):  
Support Structures ◽  
Sign Support Structures

Cost and Performance Comparison of U.S. Overhead Sign Support Structures

2004 ◽  
Vol 1892 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Theresa M. Ahlborn ◽  
John W. van de Lindt ◽  
Alonso J. Uzcategui ◽  
Matthew E. Lewis
Keyword(s):  
Performance Comparison ◽  
Support Structures ◽  
Sign Support Structures ◽  
And Performance

Performance-Based Analysis of Coupled Support Structures and Piping Systems Subject to Seismic Loading

2015 ◽  
Author(s):  
Oreste S. Bursi ◽  
Fabrizio Paolacci ◽  
Md Shahin Reza
Keyword(s):  
Seismic Design ◽  
Seismic Analysis ◽  
Design Method ◽  
Design Guidelines ◽  
Piping System ◽  
Support Structures ◽  
Limit States ◽  
Piping Systems ◽  
Allowable Stress Design

The prevailing lack of proper and uniform seismic design guidelines for piping systems impels designers to follow standards conceived for other structures, such as buildings. The modern performance-based design approach is yet to be widely adopted for piping systems, while the allowable stress design method is still the customary practice. This paper presents a performance-based seismic analysis of petrochemical piping systems coupled with support structures through a case study. We start with a concept of performance-based analysis, followed by establishing a link between limit states and earthquake levels, exemplifying Eurocode and Italian prescriptions. A brief critical review on seismic design criteria of piping, including interactions between piping and support, is offered thereafter. Finally, to illustrate actual applications of the performance-based analysis, non-linear analyses on a realistic petrochemical piping system is performed to assess its seismic performance.

An Efficient Direct Calculation Approach for Fatigue Assessment of Container Ships Concerning Bending and Warping Stresses

2014 ◽  
Author(s):  
Zhiyuan Li ◽  
Wengang Mao ◽  
Jonas W. Ringsberg
Keyword(s):  
Beam Theory ◽  
Direct Calculation ◽  
Fe Analysis ◽  
Hydrodynamic Simulation ◽  
Fatigue Assessment ◽  
Hull Girder ◽  
Torsional Loads ◽  
Warping Stress

Container ships are particularly susceptible to torsional loads. The distribution of torsion-induced warping stress in a container ship hull is more complicated and difficult to be expressed by beam theory formulas. In practice, finite element (FE) analysis is typically used to calculate the stress response to wave-loading conditions. However, it is time consuming to compute hull girder stresses for all relevant sea conditions through FE analyses. In this paper, an efficient and robust approach is proposed by combining beam theory and FE analyses in the determination of hull girder stresses. The parameters required by beam theory can be regressed through matching stress records from a FE analysis with the corresponding sectional and pressure loads from the hydrodynamic simulation. Stress records obtained using the proposed method are utilized in fatigue assessment of a case study container vessel. The results show that the accuracy of the regression approach is satisfactory compared with the full FE analyses.

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