- 摘 要
-
（1 中南大學土木建筑學院，長沙 410075; 2 湖南科技大學土木工程學院，湘潭 411201）
［摘要］通過理論分析和縮尺模型試驗，對水平荷載作用下空心板柱結構的受力性能進行了研究。通過對空心樓板截面鋼筋、混凝土應變的分析，證實樓板截面抗彎應力沿板寬度范圍的分布是不均勻的，即存在“剪力滯后”現(xiàn)象；通過對彈性階段等代梁寬度系數(shù)的理論值、試驗值及規(guī)范計算值進行比較，對彈性階段等代梁計算寬度的取值進行了探討，表明規(guī)范值是偏安全的，并給出了相同幾何參數(shù)條件下空心板柱結構等代梁計算寬度的修正系數(shù)。
［關鍵詞］空心板柱結構；水平荷載;受力性能；等代梁寬度；修正系數(shù)
Calculating width of equivalent beam for hollow slab-column structure subjected to horizontal load
Tan Lei1，2, Liu Xijun2, Ding Shibao2(1 School of Civil Engineering and Architecture,Central South University,Changsha 410075,China;2 School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201,China)
Abstract:The mechanical performance of the hollow slab-column structure were studied by theoretical analysis and 1/3 scale model experimental research. The shear lag phenomenon has been confirmed by analysis of strain curves for the concrete and reinforcement. The calculating width of the equivalent beam in elastic stage was studied by comparison of theoretical value，experimental value and the code value. It is proposed that the code value is safe, and the modified coefficient of equivalent beam width of the cast-in-situ concrete hollow slab-column structure is given.
Keywords:hollow slab-column structure; horizontal load; mechanical performance; equival
ent beam width; modified coefficient
湖南省教育廳資助項目（
作者簡介：譚磊，講師，博士研究生，Email: smartlei
