Page 132 - 《爆炸与冲击》2026年第3期
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第 46 卷     李昊洋,等: 风致飞射物冲击下钢化玻璃破坏的边界条件效应及碎片分布量化模型                                第 7 期

               data  at  the  impact  point  and  impact  velocity.  After  each  impact  experiment,  glass  fragments  were  fully  recovered  from  a
               predefined area encompassing the entire experiment chamber. This area was divided into nine zones, extending 20 mm from
               the  impact  surface  and  70  mm  from  the  non-impact  surface  of  the  glass  specimen.  Fragment  mass  distribution  was  then
               statistically analyzed with a collection efficiency exceeding 98%. Range analysis and analysis of variance (ANOVA) were
               performed  on  the  experimental  matrix  to  quantitatively  reveal  the  relative  influence  of  each  parameter  on  glass  fracture
               characteristics, impactor energy dissipation, and fragment mass distribution. To avoid overreliance on statistical significance
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               derived solely on P-values, effect size analysis using partial Eta squared (η ) was innovatively incorporated to quantify the
               practical engineering significance of each parameter, complementing traditional variance analysis that relies solely on P-values.
               A normalized formulation characterizing fragment mass distribution was established based on the principle of dimensional
               homogeneity  and  Buckinghamʼs  Π  theorem.  Parameter  values  for  the  semi-empirical  prediction  model  were  determined
               through an orthogonal distance regression iterative algorithm, which effectively accounts for errors in both independent and
               dependent variables. The hybrid normal distribution model was adopted to fit the fragment mass distribution data, with shape
               parameters fixed in accordance with boundary conditions and key parameters optimized to ensure engineering applicability.
               Results  demonstrate  that  boundary  conditions  dominantly  control  glass  fracture  extent  and  fragment  dispersion.  Specially,
               exposed framing support yields the minimal fragment mass, corresponding to an optimal anti-scattering solution. The structural
               glazing support exhibiting the maximum kinetic energy attenuation alongside a moderate fragment quantities, and point fixing
               induces  complete  fragmentation,  representing  a  high-risk  scenario.  Impact  angle,  glass  dimensions,  and  velocity  also  exert
               significant  influences  on  fragmentation  behavior.  The  established  parameter  influence  hierarchy  for  the  impact  failure  of
               tempered glass, along with the semi-empirical predictive formula, accurately characterizes the fracture patterns of tempered glass.
               Parameters for exposed frame and concealed frame supports are both approximately unity, enabling their integration into a unified
               framed support system model. This research provided crucial theoretical foundations for wind-resistant design and reinforcement
               of building envelope systems, particularly for aging structures equipped with single-layer tempered glass curtain walls.
               Keywords:  wind-borne debris; projectile impact; tempered glass; parametric influence; dimensional analysis; semi-empirical
               modeling

                   钢化玻璃由于其具有良好的安全性、透光性和节能性                         [1-2] ,已经逐步替代普通的浮法玻璃成为现在
               高层住宅、玻璃幕墙、室内隔断和家具装饰的不二之选。虽然钢化玻璃相较普通浮法玻璃的强度高,但
               其仍然是脆性材料,且相较普通浮法玻璃,钢化玻璃在破碎时,产生的裂纹更多,破坏面积更大,尤其在
                                                                                [3]
               受到冲击作用影响时,会产生大量高速飞溅的碎片,极可能带来二次伤害 。根据落基山研究所发布的
               报告,截至    2024  年,我国老旧小区、农村住宅等既有建筑总面积达近                        350  亿平方米,占全国住房面积的
               56.5%。其中,2000    年以前建设的城镇老旧小区约               16  万个,涉及超过     4 200  万户。这些老旧建筑的玻璃
                                                                                  [4]
               幕墙普遍存在安全隐患,尤其是单层钢化玻璃幕墙在极端天气下极易破损 。以                                      2018  年台风“山竹”
               为例,据深圳市气象局统计,最大阵风达                  46.5 m/s(15  级),造成了大面积的建筑幕墙损毁。仅此次台风,
               深圳地区的直接经济损失就超过               12  亿元,其中玻璃幕墙破损占据主要部分。面对日益频繁的极端气象
               事件和城市更新需求,研究老旧建筑单层钢化玻璃幕墙的抗风致飞射物冲击性能变得尤为迫切。
                   近年来,风工程领域对风致飞射物冲击的研究发展迅速。Dong                           等  [5]  建立了城市建筑围护结构在风
               致飞射物作用下的易损性模型,系统分析了飞射物冲击对建筑外立面的损伤机理,通过概率性方法量化
               了不同类型飞射物对建筑围护结构的威胁程度。同时,多项研究致力于飞射物轨迹建模的改进,包括城
               市环境下的三维六自由度轨迹模型和湍流边界层中的飞射物飞行验证                                [6-7] 。陈胜等 [8]  研究了风致飞掷物
               对建筑浮法玻璃的冲击破坏效应,发现建筑浮法玻璃在风灾中非常容易受到飞掷物的冲击而破坏。李
               培玉  [9]  对退火玻璃在冲击作用下的破坏响应及失效机理开展了研究,并对冲击破坏结果进行了预测。

               Zhang  等 [10]  研究了在龙卷风和风致飞射物撞击作用下核电站气密防护门的动态响应和损伤。Yang                                 等 [11]
               研究了轨道车辆风挡玻璃在铁路沿线碎石弹体冲击下的承载能力,分析了风压载荷对风挡玻璃抗冲击



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