Review of the fire risk, hazard, and thermomechanical response of bridges in fire

Nicoletta, Benjamin; Kotsovinos, Panagiotis; Gales, John

doi:10.1139/cjce-2018-0767

Cited by 16 publications

(3 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bridge collapse continues to occur and causes catastrophic consequences. Bridge collapse is usually attributed to one or a combination of multiple causes [1]: (1) unexpected external effects due to natural and/or anthropogenic events, such as earthquake [2], flood [3], scour [4], fire [5], and collision [6]; (2) material deterioration and lack of maintenance such as steel corrosion [7] and concrete cracks [8]; and (3) inadequate design and/or construction [9,10]. In concrete bridges, the concrete is cracked as the tensile stress exceeds the first crack stress.…”

Section: Introductionmentioning

confidence: 99%

A framework for improving bridge resilience and sustainability through optimizing high-performance fiber-reinforced cementitious composites

Tan

Mahjoubi

Zhang

et al. 2022

J Infrastruct Preserv Resil

View full text Add to dashboard Cite

High-performance fiber-reinforced cementitious composites (HPFRCC) have shown benefits in improving infrastructure resilience but often compromises sustainability due to the higher upfront cost and carbon footprint compared with conventional concrete. This paper presents a framework to optimize HPFRCC for improving bridge resilience and sustainability. This research considers ultra-high-performance concrete and strain-hardening cementitious composite featuring high mechanical properties, ductility, and damage tolerance. This paper establishes links between resilience, sustainability, mechanical properties of HPFRCC, and HPFRCC mixtures. The investigated mechanical properties include the first crack stress, ultimate tensile strength, and ultimate tensile strain. With the established links, sustainability is maximized while resilience is retained by optimizing HPFRCC mixtures. The framework is implemented into a case study of a bridge that collapsed during construction. Results show that use of HPFRCC enhances resilience, and HPFRCC mixtures can be engineered to minimize the material cost and carbon footprint while retaining high resilience.

show abstract

Section: Introductionmentioning

confidence: 99%

A framework for improving bridge resilience and sustainability through optimizing high-performance fiber-reinforced cementitious composites

Tan

Mahjoubi

Zhang

et al. 2022

J Infrastruct Preserv Resil

View full text Add to dashboard Cite

show abstract

“…The details of this region's buildings largely depend on their age, meaning there is significant variance in how flooding impacts individual houses. Resilience quantification requires well-formatted regional historical data on several dependent parameters (Nicoletta et al 2020). From the discussed network, it is clear that the dependent parameters of flood-resilient infrastructure should also be functionally resilient against any disaster.…”

Section: Description Of Location and Field Surveymentioning

confidence: 99%

Fuzzy analytic hierarchy process framework for quantifying the flood resilience of housing infrastructure systems

et al. 2022

View full text Add to dashboard Cite

Housing constitutes a basic need for all living beings. Unfortunately, natural hazards, including floods, pose a severe threat to housing infrastructure systems. In turn, this paper develops a framework to quantify the resilience of housing infrastructure systems against flood hazards. The parameters for this resilience are based on the literature and knowledge from experts. This paper gauges the significance of each resilience parameter is evaluated using the analytic hierarchy process (AHP) and the fuzzy AHP. The evaluated values are then compared to observe the effectiveness of fuzzy AHP over AHP. The evaluated importance of each parameter will help stakeholders focus on the most important parameters and, in turn, boost the flood resilience of infrastructure. This paper then implements the developed framework in a study area to quantify local flood resilience. This resilience value will help stakeholders in the considered area to understand the resilience of local housing infrastructure.

show abstract

“…Cables used in these structures are complex elements and there is a lack of understanding concerning the thermal response, in terms both of material properties and structural behaviour, of structural cables exposed to fire 6 . This is cause for concern as the loss of a few cables can lead to total failure and collapse of the structure, which can have an adverse economic impact and potential loss of life 7 . Previous research has shown the weaknesses of these cables when exposed to fire, indicating that necessary design methodologies and guidance in a fire-safe objective and performance-based environments are needed [8][9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

Modelling Thermal Performance of Unloaded Spiral Strand and Locked Coil Cables Subject to Pool Fires

Watson

Nicoletta

Kotsovinos

et al. 2022

Structural Engineering International

Self Cite

View full text Add to dashboard Cite

Structural cables are often used to design critical structures such as bridges. Cable supported bridges are not typically redundant; a loss or compromise of a few cables can lead to the progressive collapse of an entire cable-supported bridge, causing economic harm, loss of property and, in extreme cases, loss of life. Additionally, previous experimental research has shown that the degradation of material properties and thermal expansion of structural cables is more onerous than the standard carbon prestressing steel. Despite its importance for the design of cablesupported structures, no well-validated methodology exists to aid in the thermal performance of structural cables in the event of a fire, particularly for spiral and locked-coil cables which inherently are complex due to their cross-sectional geometry. The novelty of this project is that addresses this knowledge gap by developing a state-of-the-art methodology for modelling structural cables' thermal response which addresses the difficult to model nature of bridge spiral and locked-coil cables. The usefulness of the methodology is that it will enable the development of an understanding of the temperature distribution and thermal deformation in a cable crosssection, and it will further allow subsequent estimation of post-fire resilience in a fire event. The methodology developed herein benefits with its validation for the first time against previous experiments of locked-coil and spiral strand cables, subjected to realistic pool fires. The cables range from 22 mm to 100 mm in diameter and are constructed out of galvanized or stainless steel. The cables are modelled undergoing a non-linear thermal analysis in LS-DYNA. By comparing the numerical results of 2D and 3D models to experimental results, the method's validity is verified in its ability to predict maximum temperatures and general trends of heat exchange between the strands. 2D models are found to provide conservative estimates for critical values such as peak temperature with 90% accuracy, while 3D models provide slightly more conservative estimates. The paper concludes with a research needs framework for understanding the thermal-structural deformation response of spiral and locked-coil cables bridge types.

show abstract

Review of the fire risk, hazard, and thermomechanical response of bridges in fire

Cited by 16 publications

References 49 publications

A framework for improving bridge resilience and sustainability through optimizing high-performance fiber-reinforced cementitious composites

A framework for improving bridge resilience and sustainability through optimizing high-performance fiber-reinforced cementitious composites

Fuzzy analytic hierarchy process framework for quantifying the flood resilience of housing infrastructure systems

Modelling Thermal Performance of Unloaded Spiral Strand and Locked Coil Cables Subject to Pool Fires

Contact Info

Product

Resources

About