Temperature field of concrete-filled steel tubular columns in fire

Rodrigues, Fernando; Júnior, Armando Lopes Moreno

doi:10.1590/0370-44672015700172

Cited by 4 publications

(3 citation statements)

References 3 publications

(3 reference statements)

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“…Rodrigues and Moreno [ 64 ] obtained similar expressions for the equivalent temperatures based on their regression analysis of numerical parametric simulation. However, they did not include thermal resistance at the steel/concrete interface.…”

Section: Instructionsmentioning

confidence: 98%

A Review of Models for Heat Transfer in Steel and Concrete Members During Fire

Banerjee

2021

J. RES. NATL. INST. STAN.

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Structural design for fire is conceptually similar to structural design conducted under ambient temperature conditions. Such design requires an establishment of clear objectives and determination of the severity of the design fire. In the commonly used prescriptive design method for fire, fire resistance (expressed in hours) is the primary qualification metric. This is an artifact of the standard fire tests that are used to determine this quantity. When conducting a performance-based approach for structural design for fire, it is important to determine structural member temperatures accurately when the members are exposed to a real fire. In order to evaluate the fire resistance of structural members such as structural steels and concrete, both the temporal and spatial variation of temperatures must be accurately determined. The transient temperature profiles in structural members during exposure to a fire can be determined from a heat transfer analysis. There are several models/approaches for analyzing heat transfer that have been used to determine the transient structural temperatures during a fire event. These range from simple models to advanced models involving three-dimensional heat transfer analysis employing finite element or finite difference techniques. This document provides a brief summary of some of the common simple and advanced approaches that have been used for conducting heat transfer analysis of both steel and concrete members when exposed to fire.

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Section: Instructionsmentioning

confidence: 98%

A Review of Models for Heat Transfer in Steel and Concrete Members During Fire

Banerjee

2021

J. RES. NATL. INST. STAN.

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“…Besides comparing the numerical and experimental results, they also provided a simplified 2D numerical model (instead of a 3D model) to measure the temperature at various points of the steel pipe cross-section filled with concrete exposed to fire. Rodrigues and Júnior Moreno [4], presented a simplified numerical approach in 2017 to predict the temperature of steel-concrete composite columns exposed to fire using the 3D numerical simulation of a steel pipe filled with concrete under high uniform thermal loading and the thermal analysis of the mentioned column.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Heat on the Cyclic Behavior of Retrofitted Concrete Columns (by Steel Plates and CFRP)

Amiri

Naghibdehi

et al. 2023

Period. Polytech. Civil Eng.

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In this research, in addition to ensuring the accuracy of the numerical simulations, a 3D reinforced concrete column is numerically modeled in three conditions, including a non-retrofitted state, as well as two states retrofitted with steel plates and CFRP. The coupled temperature-displacement analysis of these columns is conducted under cyclic lateral loading in various heat levels, and the effects of both the retrofits and heat on the cyclic lateral behavior of the columns are studied and compared. According to the results of the study, with temperature rise, both lateral forces and energies increase in the non-retrofitted column, the column retrofitted with steel plates, and the column retrofitted with FRP. This is even more significant at 500°C, particularly in retrofitted columns with steel plates. Besides, retrofitting the columns with steel plates (compared to FRP plates) causes a more substantial increase in the heat sensitivity of the column during cyclic lateral loading.

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“…The combination between the mechanical behavior of fire-damaged units and mortars governs the overall performance of masonry elements under fire conditions [1,2]. The importance of studying the effects of fire on structural elements is justified by the fact that high temperatures change the physical, chemical, and mechanical properties of the materials, leading to possible strength/stiffness losses and building collapse risks [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Review of Recent Progress on the Effects of High Temperatures on the Mechanical Behavior of Masonry Prisms

et al. 2023

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The structural performance of civil engineering infrastructures exposed to elevated temperatures has been investigated in many recent works. Some of these studies evaluated the residual mechanical behavior of masonry prisms subjected to high temperatures, as these specimens are simplified models (2–5 units in height) that can be easily produced and tested, in terms of operational and economic factors. However, there is no previous literature review on the mechanical properties of fire-damaged masonry prisms. Therefore, this paper presents an investigation of the current state-of-the-art on this topic. It provides a careful review of recent knowledge on the failure mechanisms, residual compressive strength, modulus of elasticity, and stress–strain behavior of masonry prisms made with different types of units, mortars, and/or grout after exposure to different types of thermal treatments. Based on the revised information, future research directions on the scientific field of masonry infrastructures are reported.

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Temperature field of concrete-filled steel tubular columns in fire

Cited by 4 publications

References 3 publications

A Review of Models for Heat Transfer in Steel and Concrete Members During Fire

A Review of Models for Heat Transfer in Steel and Concrete Members During Fire

The Effects of Heat on the Cyclic Behavior of Retrofitted Concrete Columns (by Steel Plates and CFRP)

Review of Recent Progress on the Effects of High Temperatures on the Mechanical Behavior of Masonry Prisms

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