摘要
在页岩烧结保温砌块墙体低周反复荷载试验研究的基础上,提出了页岩烧结保温砌块墙体刚架——等效单斜撑力学模型,并采用SAP2000有限元分析程序分别对该模型在弹性阶段和弹塑性阶段进行分析验证。通过分析提出了等效单斜撑有效宽度计算公式,确定了等效单斜撑塑性铰的基本属性,提出了等效单斜撑轴向屈服力和屈服位移计算表达式,并提出了等效单斜撑塑性铰的力——位移本构关系,试验结果比较发现,利用页岩烧结保温砌块墙体刚架——等效单斜撑力学模型可以很好地反映原型结构在弹性阶段和弹塑性阶段的受力性能。
On the basis of the low-cycle reversed loadings experiment for heat-insulation fired shale block walls, the rigid frame-equivalent single brace mechanics model of heat-insulation fired shale block walls is proposed, and the model is analyzed for the elastic stage and elastic-plastic stage through the finite element analysis program SAP2000. The formula for the effective width of equivalent single brace is proposed, and the basic attribute of equivalent single plastic hinge brace is determined. The formula for the yield strength and the yield displacement of equivalent single brace is proposed, and the force-displacement constitutive relation is determined. Finally, By comparing with the test results and findings, the model in the paper can reflect the characteristics of the prototype structure.
出处
《砖瓦》
2014年第11期15-19,共5页
Brick-tile
基金
国家科技支撑计划课题(2011BAJ04B01)
国家科技支撑计划子课题(2011BAJ04B01-02
2011BAJ08B05-4
2012BAJ19B04-02)
陕西省科技新星项目(2010KJXX16)
关键词
页岩烧结保温砌块
刚架——等效单斜撑力学模型
有效宽度
塑性铰
本构关系
shale fired heat-insulation block
the rigid frame-equivalent single brace mechanics model
effective width
plastic hinge
constitutive relation
