Page 44 - 《爆炸与冲击》2026年第8期

第 46 卷 第 8 期 爆 炸 与 冲 击 Vol. 46, No. 8
2026 年 8 月 EXPLOSION AND SHOCK WAVES Aug., 2026

DOI：10.11883/bzycj-2025-0305

超高性能混凝土板在中远距离爆炸载荷下的

响应特性 *

徐世烺，郑皓阳，李庆华，陈 涛，银 星

（浙江大学高性能结构研究所，浙江 杭州 310058）

摘要： 为评估超高性能混凝土（ultra-high performance concrete, UHPC）板在中远距离爆炸荷载下的抗爆性能，开展
了系列场地爆炸试验，系统分析了不同比例爆距对试件破坏模式的影响，并通过四点弯曲试验探讨了爆后残余承载力
变化规律。试验结果表明，UHPC 板在中远距离爆炸下整体结构保持完整，呈现典型弯曲损伤模式，背爆面损伤集中
于跨中区域。为深入揭示 UHPC 板的动力响应机理，建立了等效单自由度（equivalent single-degree-of-freedom, SDOF）理
论分析模型，对不同比例爆距下靶板的跨中峰值挠度进行了预测。理论分析表明，SDOF 方法在预测跨中峰值挠度方
面的精度较高，但在损伤较轻时存在一定高估。为进一步研究 UHPC 板的破坏机理，采用连续面帽盖模型（continuous
surface cap, CSC）对 UHPC 板的爆炸响应进行了有限元模拟。模拟结果与试验结果高度吻合，验证了有限元模型的准
确性。考虑到材料力学性能的不确定性，引入高斯自相关空间随机场建立随机有限元模型，当自相关长度为 10～20 mm
时，预测的损伤特征与实际高度一致。本研究验证了 UHPC 在中远距离爆炸下的优异抗爆性能，证明了随机有限元模
型的有效性，并揭示了材料变异性对 UHPC 结构抗爆性能评估的重要影响。
关键词： 超高性能混凝土；爆炸；残余承载力；随机有限元
中图分类号： O389 国标学科代码： 13035 文献标志码： A

Blast performance of ultra-high performance concrete panels
under intermediate-to-far-field explosive loading

XU Shilang, ZHENG Haoyang, LI Qinghua, CHEN Tao, YIN Xing
（Institute of Advanced Engineering Structures, Zhejiang University, Hangzhou 310058, Zhejiang, China）

Abstract: In order to study the blast performance of ultra-high performance concrete (UHPC) panels under intermedium-to-
far-field explosion loading, a series of field blast tests were conducted to systematically analyze the influence of scaled blast
distances on the failure modes of the specimens. To evaluate the dynamic response of the panels, post-blast and residual
strength were investigated through four-point bending tests. To understand the dynamic response mechanism, an equivalent
single-degree-of-freedom (SDOF) model was established to predict the mid-span peak deflection under different scaled blast
distances. Finite element simulations of the UHPC panels under blast loading were performed using the continuous surface cap
(CSC) model to further explore the failure mechanism. Considering uncertainties in material mechanical properties, a
stochastic finite element model was developed by introducing a Gaussian autocorrelated spatial random field. The results
indicate that UHPC panels maintain structural integrity under intermedium-to-far-field explosion, exhibiting a typical flexural
damage mode; damage on the back surface is concentrated in the mid-span region. As the scaled blast distance increased, the
extent of damage in the UHPC panels decreased significantly. The deterministic finite element model accurately predicted the
blast response of the UHPC panel. The analysis showed that the SDOF method provided accurate predictions of mid-span peak

* 收稿日期： 2025-09-17；修回日期： 2025-12-26
基金项目： 国家自然科学基金（52225803, 52338003）；中国博士后创新人才支持计划（BX20240320）
第一作者： 徐世烺（1953－ ），男，博士，教授，slxu@zju.edu.cn
通信作者： 李庆华（1981－ ），女，博士，教授，liqinghua@zju.edu.cn

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