钢筋混凝土框架柱塑性铰区的抗震剪切抗力──各国规范的比较

Seismic shear capacity of plastic hinge regions in column of reinforced concrete frame-a comparison of codes in some countries

运用能力设计法进行钢筋混凝土框架结构的抗震设计时。允许框架柱端部出现塑性铰，但又不能形成框架柱铰破坏机构，这是一个十分现实而又未得到很好解决的课题。本文通过详细比较国外先进规范关于钢筋混凝土框架柱抗震剪切抗力的的计算公式，明确了《砼结构设计规范》（ＧＢＪ１０－８９）与国外规范的抗力取值水平及该领域的国际发展方向，并针对ＧＢＪ１０－８９存在的主要问题，提出了相应的框架柱抗震延性设计的实用建议公式。

The seismic investigation shows the unavoidable shear failure of columns. On the other hand, the ductility of structures is vital to 'capacity design' philosophy in seismic design. In the thesis some countries' codes are analyzed and compared with Chinese code (GBJ10-89) based on'capacity design' philosophy. A more reliable seismic shear capacity-predicting equation for ductile reinforced concrete columns is put forward to make up the shortcuts of GBJ10-89.