锥台嵌挤混凝土预应力分布规律研究  

Study on Prestress Distribution of Concrete With Truncated Cone

作　　者：闫作龙 孔祥振 孙宇雁 孙晓晨 吴远 王子国 YAN Zuolong;KONG Xiangzhen;SUN Yuyan;SUN Xiaochen;WU Yuan;WANG Ziguo(School of Civil Engineering,Qingdao University of Technology,Qingdao 266520,China;State Key Laboratory of Disaster Prevention&Mitigation of Explosion&Impact,Army Engineering University of PLA,Nanjing 210007,China;Yancheng Water Conservancy Survey,Design and Research Institute Co.,Yancheng 224000,Jiangsu,China)

机构地区：[1]青岛理工大学土木工程学院,青岛266520 [2]陆军工程大学爆炸冲击防灾减灾国家重点实验室,南京210007 [3]盐城市水利勘测设计研究院有限公司,江苏盐城224000

出　　处：《北京工业大学学报》2025年第1期72-86,共15页Journal of Beijing University of Technology

基　　金：国家自然科学基金青年基金资助项目(51808309)。

摘　　要：为了提高锥台嵌挤预应力约束混凝土的抗侵彻性能、快速获得靶体的预应力大小,需要对混凝土靶体的预应力及其分布规律进行研究。该文进行了锥台嵌挤预应力加载试验,基于试验结果验证数值模型,开展了靶体的环向、径向、竖向的预应力分布规律的研究,并进一步建立基于锥台嵌挤预应力约束方法的力学模型,推导并验证了快速预测公式,为试验研究以及工程应用的预应力优化设计提供参考。To improve the anti-penetration performance of conical prestressed concrete and obtain the prestressed size of the target quickly,it is necessary to study the prestressed size and distribution law of the concrete target.Utilizing a numerical model verified by the test results,this study examined the distribution law of circumferential,radial and vertical prestress of the target.Furthermore,a mechanical model based on the prestressing constraint method of the cone-table was developed,and the fast prediction formula was derived and verified by the test,offering a reference for the experimental research and the optimal design of prestressing in engineering applications.

关 键 词：混凝土 预应力 抗侵彻 约束 数值模拟 预应力分布 

分 类 号：O385[理学—流体力学]