镁晶板-钢筋混凝土叠合楼板耐火性能试验研究

王卫永; 李亚盟; 李江

doi:10.11835/j.issn.2096-6717.2022.034

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镁晶板-钢筋混凝土叠合楼板耐火性能试验研究

土木工程 | 更新时间：2023-05-25

- 镁晶板-钢筋混凝土叠合楼板耐火性能试验研究
- Experimental study on fire resistance of magnesium crystal plate reinforced concrete composite floor
- 土木与环境工程学报 2023年45卷第3期页码：44-54
- 作者机构：
  
  1.重庆大学，土木工程学院，重庆400045
  2.重庆大学，山地城镇建设与新技术教育部重点实验室，重庆400045
- 作者简介：
  
  王卫永（1982- ）男，博士，教授，主要从事钢结构抗火研究，E-mail: wywang@cqu.edu.cn.
- 基金信息：
  
  重庆市自然科学基金(cstc2021jcyj-jqX0021)
- DOI：10.11835/j.issn.2096-6717.2022.034
  中图分类号： TU398;TU375.2
- 收稿：2022-01-15，
  
  纸质出版：2023-06-25
- 稿件说明：
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王卫永, 李亚盟, 李江. 镁晶板-钢筋混凝土叠合楼板耐火性能试验研究[J]. 土木与环境工程学报, 2023,45(3):44-54.

WANG Weiyong, LI Yameng, LI Jiang. Experimental study on fire resistance of magnesium crystal plate reinforced concrete composite floor[J]. Journal of Civil and Environmental Engineering, 2023, 45(3): 44-54.
王卫永, 李亚盟, 李江. 镁晶板-钢筋混凝土叠合楼板耐火性能试验研究[J]. 土木与环境工程学报, 2023,45(3):44-54. DOI： 10.11835/j.issn.2096-6717.2022.034.

WANG Weiyong, LI Yameng, LI Jiang. Experimental study on fire resistance of magnesium crystal plate reinforced concrete composite floor[J]. Journal of Civil and Environmental Engineering, 2023, 45(3): 44-54. DOI： 10.11835/j.issn.2096-6717.2022.034.

摘要

镁晶板—钢筋混凝土叠合楼板的下层为预制新型耐火材料镁晶板，上层为现浇钢筋混凝土板。为了研究镁晶板—钢筋混凝土叠合楼板在不同荷载比下的耐火性能及耐火等级，对3块叠合楼板试件进行ISO-834标准升温下的受火试验，得到叠合板不同位置的受火时间—温度曲线和受火时间—跨中位移曲线。试验表明，叠合板具有良好的耐火性能，耐火极限可达到1.5 h以上。利用有限元软件ABAQUS分析了试件的耐火性能，通过与试验结果对比，验证了模型的可靠性，进而采用模型考察荷载比、镁晶板厚度、混凝土保护层厚度、钢筋和混凝土的强度对叠合楼板耐火极限的影响。分析表明，荷载比和镁晶板厚度对叠合楼板耐火极限影响较大。基于参数分析结果，给出不同荷载比和不同镁晶板厚度叠合板的耐火极限。

Abstract

The lower layer of magnesium crystal plate reinforced concrete composite floor is a prefabricated new fire-resistant magnesium crystal plate

and the upper layer is cast-in-situ reinforced concrete plate. In order to study the fire resistance and fire resistance rating of magnesium crystal plate reinforced concrete composite slab under different loading ratios

three composite slab specimens were tested subjected to ISO-834 standard temperature rise

and the fire time-temperature curve and fire time mid span-deflection curve at different positions of the composite slab were obtained. The test results show that the composite slab has good fire resistance up to more than 1.5 hours. The fire resistance of the specimens was analyzed by using the finite element software ABAQUS

and the reliability of the established model was verified by comparing with test results. The effects of loading ratio

thickness of magnesium crystal plate

thickness of concrete protective layer

strength of reinforcement and concrete on the fire resistance limit were investigated via the established model. The analysis shows that the load ratio and the thickness of magnesium crystal plate have great influence on the fire resistance of the composite slab. Based on parametric analysis

the fire resistance of composite slab is proposed for different loading ratios and thicknesses of magnesium crystal plate.

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references

崔士起 , 刘传卿 , 刘文政 , 等 . 分离式接缝叠合板垂直接缝方向抗弯刚度的试验及计算方法研究 [J]. 建筑结构学报 , 2018 , 39 ( 9 ): 75 - 84 .

CUI S Q , LIU C Q , LIU W Z , et al . Research on experiment and calculating methods of flexural stiffness in direction perpendicular to separating-type joints for concrete composite slab [J]. Journal of Building Structures , 2018 , 39 ( 9 ): 75 - 84 . (in Chinese)

李志远 , 蒋首超 . 钢结构柱与墙体围护—防火一体化可行性初步探究 [J]. 建筑钢结构进展 , 2021 , 23 ( 1 ): 68 - 76 .

LI Z Y , JIANG S C . Preliminary study on the feasibility of the integrated envelope-fire protection of steel structure column and wall [J]. Progress in Steel Building Structures , 2021 , 23 ( 1 ): 68 - 76 . (in Chinese)

王新玲 , 汤万里 , 李可 . 轻钢龙骨预制防火楼板受弯性能分析 [J]. 建筑钢结构进展 , 2021 , 23 ( 5 ): 45 - 52 .

WANG X L , TANG W L , LI K . An analysis on the bending performance of prefabricated fireproof slabs with light steel joists [J]. Progress in Steel Building Structures , 2021 , 23 ( 5 ): 45 - 52 . (in Chinese)

王元清 , 成钟寿 , 石永久 , 等 . 闭口型组合楼板纵向剪切承载性能的试验研究 [J]. 土木建筑与环境工程 , 2010 , 32 ( 6 ): 1 - 6 .

WANG Y Q , SUNG J S , SHI Y J , et al . Experimental analysis on the longitudinal shear resistance of flat-type composite slab [J]. Journal of Civil , Architectural & Environmental Engineering, 2010 , 32 ( 6 ): 1 - 6 . (in Chinese)

聂建国 , 陈必磊 , 陈戈 , 等 . 钢筋混凝土叠合板的试验研究 [J]. 工业建筑 , 2003 , 33 ( 12 ): 43 - 46, 33 .

NIE J G , CHEN B L , CHEN G , et al . Experimental study on shear behavior of R. C. laminated slabs [J]. Industrial Construction , 2003 , 33 ( 12 ): 43 - 46, 33 . (in Chinese)

李耀庄 , 蒋青青 , 黄赛超 , 等 . 混凝土倒T形叠合连续板的试验研究 [J]. 中南工业大学学报(自然科学版) , 2003 , 34 ( 6 ): 695 - 698 .

LI Y Z , JIANG Q Q , HUANG S C , et al . Experimental study on the RC invertible T slab-continuous composite slab [J]. Journal of Central South University (Science and Technology) , 2003 , 34 ( 6 ): 695 - 698 . (in Chinese)

汪磊 . 钢筋混凝土叠合板的受力性能试验研究 [D]. 合肥 : 安徽建筑大学 , 2013 .

WANG L . Experimental study on mechanical behavior of reinforced concrete superposed slabs [D]. Hefei : Anhui Jianzhu University , 2013 . (in Chinese)

XU Q F , CHEN L Z , LI X M , et al . Comparative experimental study of fire resistance of two-way restrained and unrestrained precast concrete composite slabs [J]. Fire Safety Journal , 2020 , 118 : 103225 .

高立堂 . 无粘结预应力砼板火灾行为的试验研究及热弹塑性有限元分析 [D]. 西安 : 西安建筑科技大学 , 2003 .

GAO L T . Experimental investigation and nonlinear finite element analysis of the behaviors of unbonded prestressed concrete slabs under fire [D]. Xi,an: Xi,an University of Architecture and Technology , 2003 . (in Chinese)

FIKE R , KODUR V . Enhancing the fire resistance of composite floor assemblies through the use of steel fiber reinforced concrete [J]. Engineering Structures , 2011 , 33 ( 10 ): 2870 - 2878 .

周绪红 , 邓利斌 , 吴方伯 , 等 . 预制混凝土叠合楼板耐火性能试验研究及有限元分析 [J]. 建筑结构学报 , 2015 , 36 ( 12 ): 82 - 90 .

ZHOU X H , DENG L B , WU F B , et al . Experimental research and FEA on fire resistance performance of precast concrete composite slabs [J]. Journal of Building Structures , 2015 , 36 ( 12 ): 82 - 90 . (in Chinese)

建筑构件耐火试验方法第 1 部分: 通用要求GB/T 9978 . 1 — 2008 [M]. 北京 : 中国标准出版社 , 2008.

Fire-resistance tests-Elements of building construction-Part 1 : General requirements: GB/T 9978 . 1 — 2008 [M]. Beijing : Standards Press of China , 2008 . (in Chinese)

建筑设计防火规范 : GB 50016—2014 （2018版） [S]. 北京 : 中国计划出版社 , 2018 .

Code for fire protection design of buildings : GB 50016—2014 [S]. Beijing : China Planning Press , 2018 . (in Chinese)

European Committee for Standardization . Design of concrete structures Part 1. 2: General rules-structural fire design: EN1992-1-2, Eurocode2 [S]. London : BSI , 2005 .

European Committee for Standardization . Design of steel structures Part 1. 2: General rules-structural fire design: EN1993-1-2, Eurocode3 [S]. London : BSI , 2005 .

范光明 . 高温下常用防火板材热工性能研究 [D]. 福建泉州 : 华侨大学 , 2019 .

FAN G M . Study on thermal performance of commonly used fire-resistant plates at high temperature [D]. Quanzhou, Fujian : Huaqiao University , 2019 . (in Chinese)

混凝土结构设计规范 : GB 50010—2010 [S]. 北京 : 中国建筑工业出版社 , 2011 .

Code for design of concrete structures : GB 50010—2010 [S]. Beijing : China Architecture & Building Press , 2011 . (in Chinese)

李国强 , 韩林海 , 楼国彪 . 钢结构及钢—混凝土组合结构抗火设计 [M]. 北京 : 中国建筑工业出版社 , 2006 .

LI G Q , HAN L H , LOU G B . Fire resistance design of steel structure and steel-concrete composite structure [M]. Beijing : China Architecture & Building Press , 2006 . (in Chinese)

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