大型薄膜液化天然气(LNG)储罐抗冲击试验研究
Experimental Research on Impact Resistance of Large Thin-Film LNG Storage Tanks
余晓峰 1邹德磊 2邢乐 3王义祥 1吴家旭 3陈念来3
作者信息
- 1. 国家管网工程技术创新有限公司,天津 300457
- 2. 大连民族大学土木工程学院,辽宁 大连 116600
- 3. 中国寰球工程有限公司北京分公司,北京 100012
- 折叠
摘要
为了探究大型陆上薄膜罐在飞射物冲击作用下的损伤特征和动力响应特点,根据 BS-7777 标准设计了两种规格原型保冷模块靶板,并依托大口径冲击加载装置,开展了柔性和刚性弹体撞击靶板试验.研究结果表明:区别于传统 Ni9 罐,混凝土锥形塞和结痂碎片作用下,保冷结构中的木质胶合板、泡沫板以及波纹板将发生损伤.保冷模块中,胶合板和泡沫板具有较大的吸能能力.钢筋混凝土(RC)结构板未发生贯穿损伤时,冲击能量将主要由RC板、胶合板和泡沫板部分吸收,而薄膜波纹板受影响较小.
Abstract
To explore the damage characteristics and dynamic response features of large thin-film tanks un-der projectile impact,this study designed two prototype cryogenic module target plates according to the BS-7777 standard.Leveraging a large-caliber impact loading device,experiments were conducted on the impact of both flexible and rigid projectiles on the target plates.The research results indicated that,unlike Ni9 tanks,the wooden plywood,foam board,and corrugated board in the insulation structure would be damaged under the impact of concrete conical plugs and scab fragments.In the insulation module,the ply-wood and foam board showed a greater energy absorption capacity.When the RC structural plate did not undergo perforating damage,the impact energy would be mainly absorbed by the RC plate,plywood,and foam board,while the thin-film corrugated board was less affected.
关键词
大型薄膜LNG储罐/飞射物冲击作用/冲击试验/损伤破坏/动力响应Key words
large thin-film LNG storage tank/impact of projectiles/impact testing/damage destruction/dynamic response引用本文复制引用
出版年
2024
NETL
NSTL
万方数据