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首页> 外文会议>International Young Researchers Conference "Youth, Science, Solutions: Ideas and Prospects" >Deformation of Reinforced Concrete Slabs on Yielding Supports under Short-Time Dynamic Loading
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Deformation of Reinforced Concrete Slabs on Yielding Supports under Short-Time Dynamic Loading

机译：钢筋混凝土板在短时动力载荷下钢筋混凝土板的变形

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摘要

Civil and industrial buildings and structures have lately become more frequently exposed to dynamic impacts caused by emergencies. Such loads are random in nature and are characterized by high intensity and short duration of action. In this regard, protection of structures from these impacts comprises an important scientific and practical problem. One of the ways of possible improvement of structural resistance to dynamic loads of great intensity is the use of yielding supports. This article presents the results of research of reinforced concrete slabs placed on yielding supports. Yielding supports are presented in the form of deformable elements of ring cross-section, which are characterized by three phases of deformation: elastic, elastoplastic, and elastoplastic with hardening. The present research considers behavior of the slab in elastic phase, while behavior of supports is analyzed in elastoplastic and elastoplastic with hardening phases. Conducted studies allowed evaluating the influence of rigidity of yielding supports in the plastic stage of deformation. Research results also allowed explaining the influence of the nature of distribution of rigidities along the perimeter of the slab and the level of deformations of yielding supports at the moment of transition to the stage of plastic deformations on behavior of concrete slabs. According to the results of performed calculations, physical and mechanical parameters of supports have been revealed enabling to get the maximum effect to reduce the stress-strain state parameters of structures.
机译：民间和工业建筑和结构最近变得更频繁地暴露于紧急情况造成的动态影响。这种载荷本质上是随机的，其特征在于高强度和操作持续时间短。在这方面，保护这些影响的结构包括一个重要的科学和实际问题。可能改善结构耐受强度强度强度的结构耐受的方式之一是使用屈服于支撑件。本文介绍了对屈服于屈服载体的钢筋混凝土板的研究结果。产生支撑件以环横截面的可变形元件的形式提出，其特征在于，其特征在于变形的三个相：弹性，弹性塑料和弹性塑料，具有硬化。本研究认为板坯在弹性相中的行为，而支持的行为在弹性塑料和弹性塑料中分析了硬化阶段。进行了研究允许评估刚性刚性的刚度在变形的塑料阶段的影响。研究结果还允许解释沿着板坯周边的刚性分布的性质的影响以及在过渡到塑性变形阶段的塑性变形阶段的塑料变形阶段的变形水平。根据执行的计算结果，已经揭示了支持的物理和机械参数，使得能够降低结构的应力 - 应变状态参数的最大效果。

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