[1]蓝宗建,丁大钧.钢筋混凝土受弯构件裂缝宽度的计算[J].东南大学学报(自然科学版),1985,15(2):64-72.[doi:10.3969/j.issn.1001-0505.1985.02.008]
 Lan Zangjian Ding Dajun.Calculation for Crack Width of Reinforced Concrete Members With Flexure[J].Journal of Southeast University (Natural Science Edition),1985,15(2):64-72.[doi:10.3969/j.issn.1001-0505.1985.02.008]
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钢筋混凝土受弯构件裂缝宽度的计算()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
15
期数:
1985年第2期
页码:
64-72
栏目:
本刊信息
出版日期:
1985-06-20

文章信息/Info

Title:
Calculation for Crack Width of Reinforced Concrete Members With Flexure
作者:
蓝宗建丁大钧
南京工学院土木工程系; 南京工学院土木工程系 讲师; 教授
Author(s):
Lan Zangjian Ding Dajun
Dept. of Civil Eng.
关键词:
最大裂缝宽度 钢筋混凝土受弯构件 混凝土应力 平均裂缝间距 平均裂缝宽度 混凝土保护层厚度 受拉钢筋 公式计算 扩大系数 计算值
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1985.02.008
摘要:
本文在《钢筋混凝土结构设计规范》(TJ10—74)中采用的计算模式(本文第二作者提出的)的基础上,提出了钢筋混凝土受弯构件裂缝宽度计算的一个新公式。公式中,对于平均裂缝间距的计算,考虑了钢筋保护层厚度的影响;对于受拉钢筋应变不均匀系数的计算,采用了以钢筋应力为参变量的表达式。此外,还根据裂缝宽度的概率分布规律,确定了裂缝宽度扩大系数,从而使其有着更为明确的保证率。提出的公式计算简便,计算值与试验结果符合较好。该公式将列入规范TJ10—85中。
Abstract:
In this paper, on the basis of the calculation model on crack width, which is presented by the second author and adapted in China Code TJ10—74, a new formula for calculating crack width is suggested. In this formula, the effect of thickness of concrete cover of stecl bars is taken into account for calculating the average crack distance, and the stress in steel under tension is regarded as parameter when calculating the non-uniformity coefficient of steel strains. Moreover, the magnification coefficient of crack width is calculated according to the probability distribution of crack width. The formula is more simple, and the values calculated by it accord with the results of experiments better. The formula will be put in China Code TJ10

相似文献/References:

[1]吕志涛,周明华,狄志新.轴向力对钢筋混凝土受弯构件抗剪强度的影响[J].东南大学学报(自然科学版),1979,9(4):25.[doi:10.3969/j.issn.1001-0505.1979.04.003]
 Lu Zhi-tao,Zhou Ming-hua,Di Zhi-xin.Influence of Axial Forces on Shear Strength of Reinforced Concrete Members with Flexure[J].Journal of Southeast University (Natural Science Edition),1979,9(2):25.[doi:10.3969/j.issn.1001-0505.1979.04.003]
[2]金芷生,朱万福,庞同和.钢筋与混凝土粘结性能试验研究[J].东南大学学报(自然科学版),1985,15(2):73.[doi:10.3969/j.issn.1001-0505.1985.02.009]
 Jin Zhisheng,Zhu Wanfu,Pong Tonghe.Experimental Research on Bond Behavior Between Reinforcement and Concrete[J].Journal of Southeast University (Natural Science Edition),1985,15(2):73.[doi:10.3969/j.issn.1001-0505.1985.02.009]

更新日期/Last Update: 2013-05-01