Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Combined anti-explosion protection device for pier
The invention discloses a combined anti-explosion protection device for a pier. The device comprises an anti-impact layer, a buffer layer and a protective layer which sequentially wrap the pier from inside to outside, wherein the anti-impact layer comprises ultra-high molecular weight polyethylene fibers wrapping the outer side surface of the pier, the buffer layer comprises a glass fiber reinforced plastic honeycomb and foamed aluminum, the glass fiber reinforced plastic honeycomb is composed of a series of hexagonal cells, the foamed aluminum is filled in the glass fiber reinforced plastic honeycomb, the protective layer is a steel stiffened plate, the steel stiffened plate comprises a zigzag steel panel, and the steel panel extends in a zigzag shape in the axial direction of the pier. According to the invention, a graded defense measure is adopted, namely, the explosion-facing angle is changed through the sawtooth-shaped steel stiffened plate on the outer side, front explosion facing is avoided, explosive shock waves are reduced, and explosive splashing is resisted, so that the pier is protected, the damage to the pier caused by explosion is reduced, the second buffer layer consumes energy to reduce the damage to the pier caused by explosion, the rigidity of the pier is further improved through the ultra-high molecular weight polyethylene fibers on the inner side, and the explosive shock waves can be effectively resisted.
本发明公开了一种用于桥墩的组合式抗爆防护装置，包括由内向外依次包覆在桥墩外部的抗冲击层、缓冲层和保护层，所述抗冲击层包括包覆在桥墩外侧表面的超高分子量聚乙烯纤维，所述缓冲层包括由一系列六边形孔格组成的玻璃钢蜂窝以及填充在玻璃钢蜂窝内部的泡沫铝，所述保护层为钢加筋板，所述钢加筋板包括锯齿状钢面板，所述钢面板在桥墩的轴向呈锯齿状延伸。本发明采取了分级设防的措施，即由外侧的锯齿状钢加筋板改变迎爆角度避免正面迎爆减小爆炸冲击波，抵挡爆炸物的飞溅，从而保护桥墩减轻爆炸对桥墩造成的损伤，由第二层的缓冲层耗能进而减轻爆炸对桥墩的损伤，由内侧的超高分子量聚乙烯纤维进一步增加桥墩刚度，能够有效抵抗爆炸冲击波。
Combined anti-explosion protection device for pier
The invention discloses a combined anti-explosion protection device for a pier. The device comprises an anti-impact layer, a buffer layer and a protective layer which sequentially wrap the pier from inside to outside, wherein the anti-impact layer comprises ultra-high molecular weight polyethylene fibers wrapping the outer side surface of the pier, the buffer layer comprises a glass fiber reinforced plastic honeycomb and foamed aluminum, the glass fiber reinforced plastic honeycomb is composed of a series of hexagonal cells, the foamed aluminum is filled in the glass fiber reinforced plastic honeycomb, the protective layer is a steel stiffened plate, the steel stiffened plate comprises a zigzag steel panel, and the steel panel extends in a zigzag shape in the axial direction of the pier. According to the invention, a graded defense measure is adopted, namely, the explosion-facing angle is changed through the sawtooth-shaped steel stiffened plate on the outer side, front explosion facing is avoided, explosive shock waves are reduced, and explosive splashing is resisted, so that the pier is protected, the damage to the pier caused by explosion is reduced, the second buffer layer consumes energy to reduce the damage to the pier caused by explosion, the rigidity of the pier is further improved through the ultra-high molecular weight polyethylene fibers on the inner side, and the explosive shock waves can be effectively resisted.
本发明公开了一种用于桥墩的组合式抗爆防护装置，包括由内向外依次包覆在桥墩外部的抗冲击层、缓冲层和保护层，所述抗冲击层包括包覆在桥墩外侧表面的超高分子量聚乙烯纤维，所述缓冲层包括由一系列六边形孔格组成的玻璃钢蜂窝以及填充在玻璃钢蜂窝内部的泡沫铝，所述保护层为钢加筋板，所述钢加筋板包括锯齿状钢面板，所述钢面板在桥墩的轴向呈锯齿状延伸。本发明采取了分级设防的措施，即由外侧的锯齿状钢加筋板改变迎爆角度避免正面迎爆减小爆炸冲击波，抵挡爆炸物的飞溅，从而保护桥墩减轻爆炸对桥墩造成的损伤，由第二层的缓冲层耗能进而减轻爆炸对桥墩的损伤，由内侧的超高分子量聚乙烯纤维进一步增加桥墩刚度，能够有效抵抗爆炸冲击波。
Combined anti-explosion protection device for pier
一种用于桥墩的组合式抗爆防护装置
ZHANG YUYE (Autor:in) / XU KAI (Autor:in)
31.07.2020
Patent
Elektronische Ressource
Chinesisch
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