Established the calculation model of waterproof layer tensile above bridge crack, compute a minimum extension and strength the waterproofing layer must have hi a certain width crack.
建立了桥面裂缝之上防水层张力的计算模型，有效地计算出桥面混凝土一定宽度裂缝上防水层须具备的最小延伸率和拉伸强度。
This paper introduced the basic concept of uncertain degree and its mathematics model, and evaluated uncertain degree in tensile strength measure of reinforcing steel bar in material mechanics.
介绍不确定度的基本概念和数学模型，并对材料力学性能测试中常见的钢筋抗拉强度检测中的不确定度进行了简要的分析和评定。
In this paper, a model with double factors and double parameters for calculating tensile strength of steel fiber reinforced concrete (SFRC) is established on the basis of composite material mechanics.
基于复合材料力学理论，建立了双因素、双参数的钢纤维混凝土抗拉强度普适计算模式。
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