Multiscale approach to modern materials and structures

拟议的研究涉及新一代建筑材料的结构分析和设计，特别是现代混凝土和聚合物。结构的安全性和稳健性取决于我们对其行为的理解，而这直接受到其建造中使用的材料的影响。结构混凝土的研究将集中在钢筋混凝土平板支撑柱及其在建筑结构中的应用。这样的平板结构，如果不加强剪切，可以破坏脆性和危险的冲孔剪切模式。这项工作将包括数值和理论模型的发展、非线性有限元分析、弯矩和钢筋对冲孔剪切能力的影响的参数化研究、新钢筋技术的发展、地震带和异常载荷下的渐进倒塌和结构坚固性的研究、防腐蚀研究和板的新设计准则的发展。

The proposed research addresses analyses and design of structures made from a new generation of construction materials, in particular modern concretes and polymers. Safety and robustness of structures depend on our understanding of their behaviour, which is directly influenced by the materials used in their construction. Structural concrete research will concentrate on reinforced concrete flat slabs supported on columns and their application in building structures. Such flat slab structures, if not reinforced for shear, can fail in a brittle and dangerous punching shear mode. The work will include numerical and theoretical model developments, nonlinear finite element analyses , parametric studies on the effects of moment and reinforcements on punching shear capacity, development of new reinforcement techniques, studies on progressive collapse and structural robustness in seismic zones and under abnormal loadings, studies on corrosion protection and the development of new design guidelines for slabs.