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一、引言设计适应新功能需要的工业建筑(如在核电站建筑中)的特殊结构与一系列特殊条件有关。其中包括弄清在特殊条件下的材料特性,尤其是在高温(达+140℃)和密封连接条件下。在正常条件下(T=+20℃,相对湿度为65%)混凝土的形变参数(如线胀系数α_Τ、弹性模数Ε,蠕变形变ε_κ和收缩形变ε_s,弛豫特性σ_t)的测定方法已经大致定型,相反,要研究材料在上述使用条件下的特性却需要全新的测试技术。
I. INTRODUCTION The special structure of industrial buildings designed to meet the needs of new functionalities (as in nuclear power plant construction) is related to a series of special conditions. This includes clarifying material properties under special conditions, especially at high temperatures (up to + 140 ° C) and sealed connections. Under normal conditions (T = +20 ℃, relative humidity 65%) concrete deformation parameters (such as linear expansion coefficient α_T, elastic modulus Ε, creep strain ε_κ and shrinkage deformation ε_s, relaxation characteristics σ_t) Has been roughly modeled, on the contrary, to study the characteristics of the material under the conditions of use but requires new testing techniques.