摘要
在分析碳纤维补强衬砌结构的承载机理基础上,对带缝工作的公路隧道衬砌结构提出了一种内力计算方法,特点为将裂损衬砌视为铰接拱形衬砌结构,补强后的衬砌视为无铰衬砌结构,文中给出了计算内力的解析式,为碳纤维补强衬砌的设计计算提供了一种理论解,并通过工程实例表明了无铰拱形衬砌结构能改善结构的受力性能,增强结构的承载能力。
Based on analyzing the bearing capacity mechanism of lining reinforced with CFRP, an internal force calculation method applied to the highway tunnel lining with crack is given, which is characterised by that this cracked highway tunnel lining is considered as hinged arch - shaped lining structure and then reinforced lining is considered as no - hinge lining structure. This paper also proposes the analytic formulas to calculate the internal force. An example shows that the no-hinge arch-shaped lining can improve hearing performance and strengthen the bearing capacity of the structure.
出处
《地下空间与工程学报》
CSCD
2007年第4期737-741,共5页
Chinese Journal of Underground Space and Engineering
关键词
碳纤维补强
公路隧道
地下结构
弹性地基梁
CFRP strengthened
highway tunnel
underground structure
elastic foundation beam
