火灾高温环境下混凝土力学性能研究进展_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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火灾高温环境下混凝土力学性能研究进展

Research progress on mechanical properties of concrete under fire and high temperature environment

2024年第8期

混凝土；火灾；高温；劣化机理；力学性能

Concrete; Fire; High temperature; Deterioration mechanism; Mechanical property

2024年第8期

10.19761/j.1000-4637.2024.08.037.08

国家自然科学基金项目（52308272、52378171、52108379）；河北省自然科学基金项目（E2024210089、E2022210005）；石家庄铁道大学青年科研创新专项项目（ZQK202302）；石家庄铁道大学土木工程学院自主课题项目（TMXN2302）。

管忠正，高燕，张浩昌，孙国文，宋鹏飞*，侯位广，贾子豪，张耀，王义超，李勇

石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室，河北石家庄 050043

管忠正，高燕，张浩昌，孙国文，宋鹏飞*，侯位广，贾子豪，张耀，王义超，李勇

管忠正,高燕,张浩昌,等.火灾高温环境下混凝土力学性能研究进展[J].混凝土与水泥制品,2024(8):37-43,61.

GUAN Z Z,GAO Y,ZHANG H H,et al.Research progress on mechanical properties of concrete under fire and high temperature environment[J].China Concrete and Cement Products,2024(8):37-43,61.

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摘要：为保证火灾下混凝土工程结构的安全性，分析了火灾作用下混凝土的主要力学性能损伤演化机理，总结了高温下混凝土内部（水泥浆体和粗骨料）物相变化和劣化机理，介绍了高温下普通和高强混凝土抗压强度、抗拉强度、弹性模量、应力-应变关系等力学性能的变化规律，阐述了不同骨料类型（天然骨料和再生骨料）对混凝土残余力学性能的影响。对于灾后混凝土结构的损伤评估及安全加固具有一定的参考意义。 Abstract: To ensure the safety of concrete engineering structures under fire, the main mechanical properties and damage evolution mechanism of concrete under fire action have been analyzed. The phase change and deterioration mechanism of concrete(cement slurry and coarse aggregate) under high temperature are summarized, and the changes in mechanical properties such as compressive strength, tensile strength, elastic modulus, and stress-strain relationship of ordinary and high strength concrete under high temperature are introduced. The influence of different types of aggregates (natural aggregate and recycled aggregate) on the residual mechanical properties of concrete is elaborated. It has certain reference significance for the damage assessment and safety reinforcement of post disaster concrete structures.

英文名 : Research progress on mechanical properties of concrete under fire and high temperature environment

刊期 : 2024年第8期

关键词 : 混凝土；火灾；高温；劣化机理；力学性能

Key words : Concrete; Fire; High temperature; Deterioration mechanism; Mechanical property

刊期 : 2024年第8期

DOI : 10.19761/j.1000-4637.2024.08.037.08

文章编号 :

基金项目 : 国家自然科学基金项目（52308272、52378171、52108379）；河北省自然科学基金项目（E2024210089、E2022210005）；石家庄铁道大学青年科研创新专项项目（ZQK202302）；石家庄铁道大学土木工程学院自主课题项目（TMXN2302）。

作者 : 管忠正，高燕，张浩昌，孙国文，宋鹏飞*，侯位广，贾子豪，张耀，王义超，李勇

单位 : 石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室，河北石家庄 050043

管忠正，高燕，张浩昌，孙国文，宋鹏飞*，侯位广，贾子豪，张耀，王义超，李勇

管忠正,高燕,张浩昌,等.火灾高温环境下混凝土力学性能研究进展[J].混凝土与水泥制品,2024(8):37-43,61.

GUAN Z Z,GAO Y,ZHANG H H,et al.Research progress on mechanical properties of concrete under fire and high temperature environment[J].China Concrete and Cement Products,2024(8):37-43,61.

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摘要

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参考文献

引用本文

Abstract: To ensure the safety of concrete engineering structures under fire, the main mechanical properties and damage evolution mechanism of concrete under fire action have been analyzed. The phase change and deterioration mechanism of concrete(cement slurry and coarse aggregate) under high temperature are summarized, and the changes in mechanical properties such as compressive strength, tensile strength, elastic modulus, and stress-strain relationship of ordinary and high strength concrete under high temperature are introduced. The influence of different types of aggregates (natural aggregate and recycled aggregate) on the residual mechanical properties of concrete is elaborated. It has certain reference significance for the damage assessment and safety reinforcement of post disaster concrete structures.

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