钢丝网水泥砂浆加固混凝土梁高温后的抗弯性能

袁广林; 许小燕; 张先扬; 成林燕

doi:10.13204/j.gyjz200907020

钢丝网水泥砂浆加固混凝土梁高温后的抗弯性能

doi: 10.13204/j.gyjz200907020

1.
1. 中国矿业大学建筑工程学院,江苏徐州 221008;
2.
2. 晋城煤炭设计室,山西晋城 048000

基金项目:

国家自然科学基金资助项目(50478100)

详细信息

作者简介:
袁广林，男，1965年3月出生，教授，博士。E-mail:ygl65cumt@cumt.edu.cn

计量
- 文章访问数: 104
- HTML全文浏览量: 8
- PDF下载量: 59
- 被引次数: 0
出版历程
- 收稿日期: 2008-09-25
- 刊出日期: 2009-07-20

EXPERIMENTAL RESEARCH ON FLEXURAL PERFORMANCE OF FERROCEMENT REINFORCED RC BEAMS AFTER HIGH TEMPERATURE

1.
1. Department of Civil Engineering and Architecture,China University of Mining and Technology,Xuzhou 221008,China;
2.
2. Jincheng Coal Design Department,Jincheng 048000,China

摘要

摘要: 对钢丝网水泥砂浆加固钢筋混凝土梁高温后抗弯性能进行试验，研究受热温度对钢丝网水泥砂浆加固钢筋混凝土梁高温后抗弯性能的影响规律。研究结果表明：采用钢丝网水泥砂浆加固法能有效提高梁的抗弯刚度，减少跨中挠度；随着受热温度的升高，钢丝网水泥砂浆加固梁的承载力有一定程度的降低，当受热温度在450℃以下时，加固梁承载力的降低不超过5%。也即采用钢丝网水泥砂浆加固混凝土梁具有良好的抗火能力。
- 钢丝网 /
- 水泥砂浆 /
- 加固 /
- 混凝土梁 /
- 高温 /
- 抗弯性能
Abstract: Flexural performance of RC beams reinforced by ferrocement was tested after different high temperature,and the influence law of the high temperature on flexural performance was analyzed.The results indicated that the reinforcement method of ferrocement could increase flexural rigidity of RC Beams,and it could decrease the deflection of midspan.The bearing capacity of reinforced RC beam decreased to some extent with the increasing of heating temperature;while the temperature was below 450 ℃,the bearing capacity of reinforced RC beams decreased by less than 5%.It indicated that RC beams reinforced by ferrocement had well flameresistant capacity.
- steel wire netting /
- cement mortar /
- reinforcement /
- concrete beam /
- high temperature /
- flexural performance

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参考文献(8)

[2] 尚守平,曾令宏.复合砂浆钢丝网加固RC受弯构件的试验研究[J].建筑结构学报,2003,24(6):87-91;

曾令宏.钢丝网复合砂浆加固混凝土受弯构件的试验研究[D].长沙:湖南大学,2003;

[3] 尚守平,蒋隆敏.钢筋网水泥复合砂浆加固RC偏心受压柱的试验研究[J].建筑结构学报,2005,26(2):18-25;

[4] 熊光晶,严洲.钢丝网钢筋砂浆加固混凝土圆柱的抗轴压试验研究[J].汕头大学学报:自然科学版,2006,21(4):70-74;

[5] 熊光晶.焊接钢丝网水泥在弯曲疲劳荷载作用下的应力计算[J].力学与实践,1997,19(6):28-30;

[6] 高晓梅,简政.钢丝网外喷高强砂浆加固钢筋混凝土梁的试验研究[J].西安理工大学学报,2004,20(4):429-432;

[7] 成林燕.钢丝网水泥砂浆加固混凝土梁高温后抗弯性能研究[D].徐州:中国矿业大学,2007;

[8] Xiong Guangjing,Gurdev Singh.Rational Evalution of FlexuralBehavior of Weldmesh Ferrocement in Normal and CorrosiveEnvironments[J].ACI Structural Journal,1998,95(6):647-653.

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