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首页> 外文会议>International conference on applications of statistics and probability;ICASP8 >Reliability of masonry walls under wind effects: Importance of the joints and error models in design
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Reliability of masonry walls under wind effects: Importance of the joints and error models in design

机译：受风影响的砌体墙的可靠性：设计中节点和误差模型的重要性

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French design and calculation rules concerning masonry walls are based on the principle of admissible stresses verification. This approach does not incorporate explicitly neither the idea of partial factors nor the idea of loads combination. It is, then, not possible to take into account, in a detailed way, the influence of uncertainties that may affect the parameters involved in the design and calculation. In the present paper, a wall of masonry is analyzed, under lateral wind loads and vertical loads, the whole being considered as random variables. In order to evalaute the mechanical influence of the joints quality, two kinds of walls are considered : walls with both horizontal and vertical joints, in one hand, and only with horizontal joints, in the other hand. The mechanical properties of the joints, considered as random variables, are those of the mortar : its strength, its cohesion and mortar-brick friction factor. The limit state concerns the transformation of the wall into a mechanism due to joints failure while the bricks are assumed to remain as rigid and solids. The use of the mechanical models, described herein, aims to construct more economically while avoiding wall over-sizing. Aiming to provide useful bases for assessing partial factors applicable to such structures, a reliability-oriented analysis has been performed and demonstrates the effect of the parameters variability.
机译：法国关于砌体墙的设计和计算规则是基于允许应力验证的原理。这种方法既没有明确地包含部分因素的思想，也没有明确地考虑荷载组合的思想。因此，不可能详细考虑不确定性的影响，而不确定性可能会影响设计和计算中涉及的参数。本文分析了砌体墙在侧向风荷载和垂直荷载作用下的整体情况，将其视为随机变量。为了避免影响关节质量的机械影响，考虑了两种墙：一方面具有水平和垂直关节的墙，另一方面仅具有水平关节的墙。缝的机械性能被认为是随机变量，是砂浆的力学性能：其强度，内聚力和砂浆-砖的摩擦因数。极限状态涉及墙因接头失效而转变为机械的过程，而假定砖块保持为刚性和实心。本文所述的机械模型的使用旨在在避免壁尺寸过大的同时更经济地构造。为了为评估适用于此类结构的局部因素提供有用的基础，已进行了面向可靠性的分析，并演示了参数可变性的影响。

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