Evaluation of Maximum Effective Temperature for Estimate Design Thermal Loads in Steel Box Girder Bridges

Lee, Seong Haeng

doi:10.5762/kais.2016.17.8.133

Cited by 1 publication

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Li et al (2023) conducted a comprehensive review, examining the temperature distribution and effects on different bridge types—girder, arch, cable-stayed, and suspension bridges—employing theoretical analysis, numerical simulations, experimental tests, and field monitoring. In a study by (Lee, 2016a; Lee et al, 2016), design-effective temperatures for steel box girders were estimated and evaluated using temperature field monitoring data gathered from both full-size steel box girder specimens and operational bridges. Investigating the Qingma suspension bridge spanning 2132 meters, Xia et al (2013) combined numerical analysis with field monitoring to study temperature distribution and response.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of the three-dimensional temperature field in the arch ribs of the reinforced concrete ribbed arch bridge during construction

Tian,

Zhang,

et al. 2024

Advances in Structural Engineering

View full text Add to dashboard Cite

The unique structural design of an arch ring featuring varying inclination angles for individual segments causes variations in the longitudinal distribution of the temperature field d along the arch axis. This study aims to enhance the understanding of temperature fields in reinforced concrete (RC) arch bridges with diverse arch ring structural configurations during their construction phases. A comprehensive investigation into the three-dimensional distribution pattern of solar-induced temperature fields within arch ribs during the construction of RC ribbed arch bridges was conducted. A field test specifically measuring the temperature distribution across arch rib cross-sections was conducted on-site, involving an RC arch bridge constructed using the cable-stayed cantilever cast in situ method. Analyzing the monitored on-site temperature data revealed the distribution characteristics of temperature fields at the arch foot cross-section under solar radiation. By comparing these findings with international standards, a vertical temperature gradient fitting model for arch rib cross-sections under solar radiation was formulated. Drawing upon meteorological records and solar radiation principles, an adaptive numerical simulation finite element model was developed to depict the temperature field within an arch rib section. This model was rigorously verified. Subsequently, a comprehensive analysis of the three-dimensional temperature field of the arch rib under solar radiation was performed. Additionally, a three-dimensional temperature gradient fitting model was proposed, accounting for the longitudinal inclination of the bridge.

show abstract