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首页> 外文会议>Asia-Pacific Conference on Shock amp; Impact Loads on Structures; 20031112-14; Changsha, Hunan,(CN) >IMPACT ON A RC ROCK-SHED SLAB : PERCUSSION ANALYSIS
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IMPACT ON A RC ROCK-SHED SLAB : PERCUSSION ANALYSIS

机译：对RC岩石平板的影响：打击分析

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摘要

This article is about protective structures against rocks falls. We present a new concept of rock-shed protection: it consists of a reinforced concrete slab (not protected by an embankment of ground) supported by specific supports designed to dissipate the energy of falling blocks arriving on the edge of the slab. Thus, by a single exchange of the damaged supports and/or a local repair of the slab in the impact zone, the structure can be reused and plays its role of protection. Unlike traditional rock-shed (covered by soil), this new kind of structure must be designed under dynamic load. Two damaging modes have to be considered: punching of the slab and bending. In this article, we present theoretical analysis and experimental results of the punching strength resulting from percussion. The experimental slab is a 1/3 scale model impacted in various points by a concrete block of 450 kg dropped from 30 m height.
机译：这篇文章是关于岩石跌落的保护结构。我们提出了一种新的岩棚防护概念：它由钢筋混凝土板（不受地面堤防保护）组成，并由特定的支撑支撑，这些支撑旨在消散到达板边缘的下落块的能量。因此，通过单次更换损坏的支撑件和/或在冲击区域对板坯进行局部修复，该结构可以重复使用并起到保护作用。与传统的岩石棚屋（被土壤覆盖）不同，这种新型结构必须在动态载荷下进行设计。必须考虑两种损坏方式：板的冲压和弯曲。在本文中，我们介绍了敲击产生的冲压强度的理论分析和实验结果。实验平板是一个1/3比例的模型，在不同点受到从30 m高度掉落的450 kg混凝土块的影响。

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