[1]郑文忠,赵军卫,张博一,等.活性粉末混凝土局压承载力试验与分析[J].南京理工大学学报(自然科学版),2008,(03):381-386.
 ZHENG Wen-zhong,ZHAO Jun-wei,ZHANG Bo-yi.Experiment and Analysis of Local Compression Bearing Capacity of Reactive Powder Concrete[J].Journal of Nanjing University of Science and Technology,2008,(03):381-386.
点击复制

活性粉末混凝土局压承载力试验与分析
分享到:

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2008年03期
页码:
381-386
栏目:
出版日期:
2008-06-30

文章信息/Info

Title:
Experiment and Analysis of Local Compression Bearing Capacity of Reactive Powder Concrete
作者:
郑文忠;赵军卫;张博一;
哈尔滨工业大学土木工程学院, 黑龙江哈尔滨150090
Author(s):
ZHENG Wen-zhongZHAO Jun-weiZHANG Bo-yi
School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China
关键词:
活性粉末混凝土 局压面积比 局压强度提高系数 承载力
Keywords:
reactive powder concrete local compression area ratio local compression enhancement coefficient bearing capacity
分类号:
TU528.2
摘要:
为了建立活性粉末混凝土(RPC)局部受压承载力计算方法,对48个RPC棱柱体试件进行了轴心局部受压试验,考察了活性粉末混凝土强度和局压面积比对其局部受压性能的影响。试验结果表明:RPC强度等级对局压强度提高系数影响较小;局压强度提高系数随局压面积比的增大而增大;在局压面积比相同时,RPC局压强度提高系数较高强混凝土低。基于试验结果分别提出了素RPC和掺加钢纤维RPC局压承载力的两类计算模式,可供相关设计标准修订时参考。
Abstract:
To establish the calculation method for local compression bearing capacity of reactive powder concrete(RPC),the axial local compression experiments on 48 RPC prism specimens are completed.The influences of strength of RPC and the local compression area ratio on local compression performance of RPC are researched.Experimental results show that the strength grades of RPC have a little influence on local compression enhancement coefficient and the coefficient increases with the increase of the local compression area ratio.Under the same local compression area ratio,the local compression enhancement coefficient of RPC is lower than the high strength concrete.Based on the experimental results,two kinds of calculation formulas for local compression bearing capacity of plain RPC and RPC with steel fiber are brought forward.All these can be served as references when revising the relevant design standards.

参考文献/References:

[1] R ichard P, Chey rezy M. Com position o f reactive powder concrete [ J]. Cem en t and Concrete Research, 1995, 25 ( 7): 1 501- 1 511.
[2] 覃维祖, 曹峰. 一种超高性能混凝土) ) ) 活性粉末 混凝土[ J]. 工业建筑, 1999, 29( 4): 16- 18.
[3] Bonneau O, Lachern iM. M echanica l properties and durability o f two industr ial reactive powder concretes [ J]. AC IM aterials Journa,l 1997, 94 ( 4): 288- 290.
[4] Fey lessoufi A. W ater env ironm en t and nanostructrea l netw ork in a reactive pow der concrete [ J]. C em ent and Concrete Com posites, 1996, 18 ( 1): 23- 29.
[5] B la is P Y, CoutureM. Prescast, prestressed pedestr-i an bridge) wo rld. s first reactive pow de r concre te structure [ J]. PC I Journa ,l 1999, 44 ( 5): 60- 71.
[6] 方志, 杨剑. FRP和RPC在土木工程中的研究与应 用[ J] . 铁道科学与工程学报, 2005, 2( 4): 54- 61.
[7] 蔡绍怀. 混凝土及配筋混凝土的局部承压强度 [ J]. 土木工程学报, 1963, 9( 6): 1- 10.
[8] GB 50010- 2002混凝土结构设计规范[ S].
[9] CECS 104- 99高强混凝土结构技术规程[ S] .
[10] CECS 38- 2004纤维混凝土结构技术规程[ S]. 386

备注/Memo

备注/Memo:
基金项目:国家自然科学基金(50178026);教育部新世纪优秀人才支持计划([2005]290) 作者简介:郑文忠(1965-),男,天津蓟县人,教授,博士生导师,主要研究方向:现代预应力结构、工程结构评价 与加固改造技术、工程结构抗火设计,E_mail:zhengwenzhong@hit.edu.cn。
更新日期/Last Update: 2008-06-30