摘要
根据文中的基本假设,推导了带板托预应力钢 混凝土连续组合梁的抗裂度计算公式及简化计算公式,其公式形式上能与现行的混凝土结构抗裂度计算公式相协调;经过计算统计,提出了简单实用的带板托钢 混凝土组合梁负弯矩区截面塑性系数表,其计算结果与11片预应力钢 混凝土连续组合试验梁的实测结果吻合较好.研究成果已应用于工程设计.
According to the basic hypothesis in this paper,the crack resistance formula and predigestion formula of prestressed steelconcrete continuous composite beams with bracket are deduced.The two formulas coordinate with nowexisting formula of concrete construction crack resistance in form.From this paper,a simple and practical table for plastic factor of section is put forward through statistical analysis.The calculated results go well with the experimentation of the 11 pieces prestressed steelconcrete continuous composite beams.The research results have been applied to engineering design.Keywords:prestressed steelconcrete continuous composite beam;negative bending moment area;crack resistance
出处
《长沙铁道学院学报》
CSCD
北大核心
2003年第1期13-18,共6页
Journal of Changsha Railway University
基金
国家自然科学基金资助项目(59878007)
关键词
预应力钢-混凝土连续组合梁
负弯矩区
抗裂度
prestressed steel-concrete continuous composite beam
negative bending moment area
crack resistance
