摘要
地基不均匀沉降是影响埋地管涵纵向力学性状的主要因素之一。针对Winkler地基模型的缺陷,采用Pasternak双参数地基模型建立了较为合理的考虑地基差异沉降的埋地管涵纵向力学模型,得到了沉陷区埋地管涵的挠曲线表达式,进而对埋地管涵的纵向力学性状要素进行分析,表明管涵结构的挠度、转角、弯矩、剪力均在差异沉降处有突变,且各要素受不均匀沉降的影响范围有限。
Foundation differential settlement is the main factor affecting longitudinal mechanical properties of the buried culvert.The more reasonable longitudinal mechanical model of underground culvert was established based on Pasternak foundation model considering the defect of Winkler foundation model.The deflection curve of culvert was derived and longitudinal mechanical properties were analyzed.The research shows that the deflection,rotation,bending moment and shear force of the culvert are mutated in the differential settlement region and the impact of differential settlement is limited.
出处
《工业建筑》
CSCD
北大核心
2010年第10期82-85,共4页
Industrial Construction
基金
浙江省重大科技专项重点社会发展项目(2009C03008-1)
浙江省自然科学基金项目(Y1080317)
国家973项目(2007CB714001
2007CB714200)
