TY -的A2 Smarzewski彼得亚雷盟——王,小东盟- Du,嘉旭盟- Li Ningjing PY - 2021 DA - 2021/05/24 TI -研究碾压混凝土构件通过高压脉冲放电技术SP - 5511959六世- 2021 AB -高压脉冲放电(HVPD)是一种节能、高效、和绿色技术,在混凝土破碎前景广阔。有限元模型的混凝土梁,板,柱段与ANSYS / LS-DYNA有限元软件建立了。基于平等原则的冲击压力,造成保险丝爆炸所产生的冲击波HVPD 50 kJ相当于炸药爆破荷载的影响,混凝土梁段的应力进行了分析。混凝土梁段有限元模型的建立探讨孔的直径和间距的影响混凝土梁段的破碎效果。每个梁段的宽度×高度是400毫米×800毫米,和有六个类型的梁段长度:600毫米,700毫米,800毫米,900毫米,1000毫米和1100毫米。两个洞都钻垂直表面的宽度×每个梁段的长度。相对应的孔间距梁段的长度类型是200毫米,300毫米,400毫米,500毫米,600毫米和700毫米。每个梁段的井深650毫米,有三种类型的孔径:30毫米,50毫米和70毫米。分析结果表明,混凝土梁段的破碎效果增加而增加的孔径和孔间距的减少。根据梁段的粉碎效果,50毫米的孔,400毫米的间距,和250毫米的洞结束(边缘)间距确定最优孔布局方案。 The finite element models of concrete slabs and columns were established. The square concrete slab thickness is 140 mm and side length is 700 mm, 800 mm, and 900 mm, respectively. Double-row holes were arranged in the slabs and the aperture is 50 mm and the hole spacing is 200 mm, 300 mm, and 400 mm, respectively. The section sizes of concrete columns are 500  mm × 500  mm, 600  mm × 600  mm, and 700  mm × 700  mm, respectively, and the aperture is 50 mm and the hole distance is 400 mm. According to the results of analysis, the optimal hole distribution scheme of concrete slab and column is chosen as the aperture of 50 mm and hole distance of 400 mm. The principle of the layout of multirow holes is that the spacing of row is not more than 400 mm, and the margin is not more than 250 mm. SN - 1687-8086 UR - https://doi.org/10.1155/2021/5511959 DO - 10.1155/2021/5511959 JF - Advances in Civil Engineering PB - Hindawi KW - ER -