摘要
JGJ 138-2012《组合结构设计规范》(报批稿)中的钢板-混凝土组合剪力墙正截面偏压承载力计算公式虽与实验数据吻合较好,但相对工程实践中出现的一些情况并不完全适用。经分析后建议宜选取与端部边缘构件纵筋设计强度较接近的型钢,否则应按不同设计强度分别计算相对界限受压区高度并取较小值。钢板-混凝土组合剪力墙偏压正截面计算公式中的剪力墙竖向分布筋及内置钢板抗弯承载力贡献项中宜增加修正系数,以免高估其对剪力墙抗弯承载力的贡献。
JGJ 138-2012 Code for Design of Composite Structure(Draft) formulais in good agreement with the experimental data of bearing capacity of normal section of steel-concrete composite shear wall bias,but some relatively in engineering practices are not completely applicable. The analysis proposed steel selection and end edge component of longitudinal reinforcement design strength is close to,or according to the different design strength to calculate the relative limit height of compression zone and smaller. The formula of theshear wall of the vertical distribution of reinforcement and steel platebending capacity contribution in increasing the correction coefficientis section steel concrete composite shear wall bias,so as not to overestimate the contribution of flexural bearing capacity of the shear wall.
出处
《广东土木与建筑》
2014年第6期7-10,共4页
Guangdong Architecture Civil Engineering
关键词
钢板-混凝土组合剪力墙
偏压承载力
相对界限受压区高度
竖向分布筋
steel plate conctrete composite shear walls
normal section bearing capacity
relative boundary compressive region's height
vertical distribution steel
