But thermal stress ca n ' t be calculated without damage . and then it provided in this article the equation of the elementary damage , material intensity , elasticity modulus and temperature evolvement of rupture energy . 6 微裂缝的形成与发展仍然是由温度应力造成的，但此温度应力应是考虑损伤行为的应力，据此，文中导出了反映初始损伤、材料强度、弹性模量以及断裂能的温度损伤演变方程。
The damage capacity is estimated by test data . the randomness of materials and earthquake are considered during process of analysis . influences of dead load on the structural reliability were considered too 采用montecarlo随机模拟法，分别分析了只考虑地震作用随机性以及同时考虑材料强度和地震作用的随机性时对结构的失效概率的影响，表明了材料强度的随机性对结构总体失效概率有一定的影响。
Taking the structure security assessment of a gymnasium as an example , the structure design , strength of materials and real time structure status are over - all measured and analyzed , and the health and security of structure are assessed 简要评述了结构损伤检测方法进展和理论分析方法，并结合某体育场馆的结构安全性评估为实例，从结构设计、材料强度检测和实际结构状态进行全面检测和分析，并对其健康状况和安全性进行评估。
Not only can the appliance of prestressed anchorage technique fully make use of the material strength and improve the stress condition in structure , it can also reduce cost , convenience the construction , speed the schedule . so it is of benefit to society and economy 预应力锚固技术的应用不仅可改善结构的受力条件，而且充分利用材料强度、节约工程费用，为方便施工、加快工程进度提供了有利条件，经济和社会效益显著。
Based on a discussion of some key problems in structural design , such as the constitutive relationship , element model , crack model , material strength , and load determination , the calculation principle , which should be followed in hydraulic structure design with rcfem , is presented 通过对本构关系、单元模型、裂缝模型、材料强度和荷载取值等关键问题的讨论，提出了应用钢筋混凝土有限元法进行水工结构设计时应遵循的计算原则。
According to analyzing experiment data and the comprehensive - equilibration theory , the most suitable mix design was gained , and an experience expression about material performance and cement / water ratio was found . at the same time , the performance of lac is analyzed by less data and neural networks 通过对试验数据的分析，根据综合平衡法，给出了最优配合方案，推荐了高强轻骨料混凝土材料强度、强质比与胶水比的经验公式。
The lath martensite nanometer structure can play the role of fine - particle strengthening and dislocation strengthening as well as coordinate the distribution of dislocation . it is hopeful that the strength and toughness of material with this structure can be increased at the same time 板条马氏体组织纳米化结构，可起到纳米晶粒的细晶强化与位错强化的联合作用，并可协调位错分布，有望使具有这种组织的材料强度和韧性同时得以提高。
Firstly , each single factor ( concrete carbonation , steel bar corrosion materials strength ) related the resisting forces of rc bridges is considered in this paper . then a resisting force model for multiple factors is created based on two types of steel bar corrosion : general and localized corrosion models 本文首先考虑混凝土碳化、钢筋锈蚀、材料强度等单因素对桥梁结构抗力衰减的影响，然后在此基础上建立多因素综合作用下的结构抗力衰减模型。
The analysis and appraise of the concrete structure , the timberwork , the bricks structure and the foundation is achieved , then the whole building appraise of the seismic performance and the wear and the reliability is carried out and the reparability of the building is graded 根据抽样检测结果确定结构验算的材料强度取值，实现混凝土结构验算及可靠性评级、木结构分析及可靠性评级、砌体结构分析及可靠性评级以及地基基础得的分析及可靠性评级。
It is investigated in the paper the correlation between the microstructure and the mechanical properties , that is , the effect of the content of free carbon , free silicon , pore and granule size on the bending strength of the material . under 1800 , we obtain material with a density of 3 . 12 g / cm3 , bending strength of 522mpa . it is considered that the increase of the bending strength of the material obtained upon the traditional rbsc material by 50 % is mainly owing to a higher density and a lower porosity than the rbsc material 研究了高温烧结材料中游离si含量，晶粒尺寸以及游离c和气孔对材料强度的影响，对比了所得材料与传统rbsc材料的显微结构和力学性能的差别，在高温烧结下制备了密度为3 . 12g / cm ~ 3 ，强度为525mpa的材料，比传统rbsc材料提高了50 ，材料中更低的气孔率和更高的密度是强度提高的主要原因。
