【摘要】 针对普通钢管混凝土组合结构在受弯时存在的局限性提出了一种新的组合结构———预应力钢管混凝土组合结构。该结构充分发挥了钢管混凝土结构的特点和预应力技术 ,扩大了其应用范围。为此 ,分析了预应力钢管混凝土组合结构在受弯状况下的受力机理 ,介绍了其弹性极限承载力和塑性极限承载力的计算理论 ,并给出了应用实例。更多还原

【Abstract】 Due to the mechanical limitation of the steel tubular concrete structure when bended, a new composite structure has been proposed, which combines properties of steel and concrete with prestressed technique. It widens the application of steel tubular structure. Also the elastoplastic calculation theory has been introduced by the analysis of the mechanism. At last, an application example is introduced.更多还原