[1]丁大钧.钢筋混凝土构件刚度计算中的若干问题[J].东南大学学报(自然科学版),1981,11(2):58-68.[doi:10.3969/j.issn.1001-0505.1981.02.007]
 Ding Da-jun.Some Problems in Stiffness Calculation of Reinforced Concrete Members[J].Journal of Southeast University (Natural Science Edition),1981,11(2):58-68.[doi:10.3969/j.issn.1001-0505.1981.02.007]
点击复制

钢筋混凝土构件刚度计算中的若干问题()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
11
期数:
1981年第2期
页码:
58-68
栏目:
本刊信息
出版日期:
1981-06-20

文章信息/Info

Title:
Some Problems in Stiffness Calculation of Reinforced Concrete Members
作者:
丁大钧
undefined
Author(s):
Ding Da-jun
关键词:
刚度计算 使用荷载 平均应变 大偏心受压构件 钢筋混凝土构件 不均匀系数 陶粒混凝土 性关系 钢筋计算 计算公式
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1981.02.007
摘要:
本文讨论了钢筋混凝土构件刚度计算中三个理论问题,即:(1)关于混凝土受压区边缘平均应变综合系数ζ;(2)钢筋计算应变ε_g和量测平均应变ε_g曲线的平行性关系;(3)根据这一关系对偏心受压构件钢筋应变不均匀系数φ计算公式的修正。对在使用荷载下系数ζ可取为常数及其在现行规范TJ10-74中的取值,根据混凝土弯曲应力与应变的关系曲线予以证明。文中还指出现行规范刚度公式所据以建立的几项前提和系数取值是协调一致的。
Abstract:
This paper deals with three problems in the stiffness calculation of reinforced concrete members. They are: (1) the synthetic coefficient ζ for determining the average strain of concrete at the edge compressive fiber, (2) the parallel relationship between the curves of computed steel strain ε_g and measured average steel strain _g, and (3) modification based on the parallel relationship for formula of the coefficient φ characterizing the nonuniform distribution of steel strain along eccentrically compressive member. The reasons to take ζ as a constant under service load and its recommended value in the current Code TJ 10-74 are verified by means of the bending stress-strain curve of concrete. The author also shows that the prerequisite conditions for the formula of stiffness and the values of coefficients in the Code are well coordinated.

相似文献/References:

[1]丁大钧,金芷生,黄德富,等.配筋陶粒混凝土梁的试验研究[J].东南大学学报(自然科学版),1980,10(4):1.[doi:10.3969/j.issn.1001-0505.1980.04.001]
 Ding Da-jun,Jin Zhi-Shang,Huang De-fu,et al.An Experimental Study of Ceramsite Concrete Beams[J].Journal of Southeast University (Natural Science Edition),1980,10(2):1.[doi:10.3969/j.issn.1001-0505.1980.04.001]

更新日期/Last Update: 2013-05-01