Soil Dynamics and Earthquake Engineering最新文献_第4页

Seismic functionality analysis of water distribution network affected by pipeline failure correlations 输水管网失效相关性影响下的地震功能分析

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-31 DOI: 10.1016/j.soildyn.2026.110148

Leifeng Zhang, Benwei Hou, Tianhe Ma, Chenzhao Xu, Huiquan Miao, Liang Liu, Xiuli Du

The seismic damages of pipelines in urban water distribution network (WDN) are often correlated as the pipelines have similarity in pipe material, construction procedure and maintenance approaches, and may suffer from spatial correlated ground motion, which significantly affect seismic functionality assessment of WDN. Existing studies on the seismic functionality of WDN accounting for pipeline failure correlations are all based on network connectivity reliability models, which unable to depicts the energy dissipation and water losses at the seismic damages of the WDN. By utilizing the hydraulic simulation to water delivery and pressure of WDN, this study proposes a framework for seismic functionality assessment of WDN with pipeline damages caused by spatial correlated ground motion. The spatial correlation coefficient of ground motion is first computed by the attenuation relationship of intensity measure, then the seismic failure probability of pipeline and the correlation coefficients among pipeline failure events are derived. Furthermore, the correlated damage samples of pipelines are generated by Cholesky decomposition combined with Sobol's sequences, and the hydraulic models with pipeline damages are applied to evaluate the seismic functionality of the WDN. Finally, the proposed framework is implemented in various benchmark WDN cases to investigate the influence of pipeline failure correlations on both system-level and node-level functionality. The results reveal that the seismic functionality of WDN considering pipeline failure correlation is higher than that obtained under the assumption of independent failures of pipelines, and there are dramatically differences among the results of hydraulic simulation that of network connectivity analysis.

由于管道材料、施工工艺和维护方式相似，且可能受到空间相关地震动的影响，城市配水管网管道的地震损伤往往是相互关联的，这对城市配水管网的地震功能评价产生了重大影响。现有考虑管道失效相关性的WDN地震功能研究均基于网络连通性可靠性模型，无法描述WDN地震损伤时的能量耗散和水损失。本研究利用水力模拟方法对水网输水和压力进行模拟，提出了考虑空间相关地震动造成管道破坏的水网地震功能评估框架。首先根据烈度测量的衰减关系计算地震动的空间相关系数，然后推导管道的地震破坏概率和管道破坏事件之间的相关系数。在此基础上，利用Cholesky分解与Sobol序列相结合的方法生成管道损伤的相关样本，并利用管道损伤的水力模型对WDN的地震功能进行评价。最后，在各种基准WDN案例中实施了所提出的框架，以研究管道故障相关性对系统级和节点级功能的影响。结果表明，考虑管道失效相关性的WDN的地震功能优于假设管道独立失效时的地震功能，且水力模拟结果与网络连通性分析结果存在显著差异。

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引用次数: 0

Experimental study on seismic performance of GBC composite columns GBC复合柱抗震性能试验研究

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-31 DOI: 10.1016/j.soildyn.2026.110149

Dumin Kuang , Wu Li , Jing Zhou , Xiaoran Chen

To expand the application of raw bamboo in engineering fields, a novel composite column is proposed: a glass fiber reinforced polymer (GFRP) wrapped bamboo-woven tube/bamboo-woven tube double confined concrete composite column, referred to as a GBC composite column. Quasi-static loading tests were conducted on 11 GBC composite columns to investigate the effects of GFRP thickness, outer bamboo-woven tube thickness, inner bamboo-woven tube thickness, axial compression ratio, and shear span ratio on the seismic failure modes and seismic performance of the specimens. The results indicate that: the GBC composite columns undergo flexural-compressive failure with the failure mode characterized by local fracture of GFRP at the column base and crushing of the interlayer concrete; the double-confined structure can effectively inhibit the rapid development of seismic damage. The hysteretic curves are full, and the skeleton curves exhibit a gentle descending stage after reaching the peak load. The specimens demonstrate excellent plastic deformation capacity and ductility, with an average ultimate drift ratio of 1/45 and an average ductility coefficient of 5.51. GFRP thickness is identified as the key factor affecting the seismic performance of GBC composite columns; the outer and inner bamboo-woven tubes form gradient confinement on the concrete, influencing the descending rate of bearing capacity after the peak load. The axial compression ratio affects the confinement effect of GBC composite columns and exerts a significant impact on the specimen's bearing capacity. The flexural capacity decreases with the increase of shear span ratio, while the ductility coefficient is positively correlated with the shear span ratio. Based on the test results and relevant code methods, a calculation method for the compression-flexure bearing capacity of GBC composite columns is established, and the difference between the calculated values and the measured values is less than 10 %.

为扩大生竹在工程领域的应用，提出了一种新型复合柱：玻璃纤维增强聚合物（GFRP）包裹竹编管/竹编管双约束混凝土复合柱，简称GBC复合柱。对11根GBC复合柱进行了拟静力加载试验，研究了GFRP厚度、外编筒厚度、内编筒厚度、轴压比、剪跨比对GBC复合柱地震破坏模式和抗震性能的影响。结果表明：GBC复合柱发生弯压破坏，破坏模式为GFRP在柱基部局部断裂，层间混凝土破碎；双约束结构可以有效地抑制震害的快速发展。滞回曲线饱满，骨架曲线在达到峰值荷载后呈平缓下降阶段。试件具有良好的塑性变形能力和延性，平均极限位移比为1/45，平均延性系数为5.51。GFRP厚度是影响GBC复合柱抗震性能的关键因素；内外竹编筒在混凝土上形成梯度约束，影响峰值荷载后承载力下降速率。轴压比影响GBC复合柱的约束效果，对试件承载力有显著影响。抗弯承载力随剪跨比的增大而减小，延性系数与剪跨比呈正相关。根据试验结果和相关规范方法，建立了GBC复合柱抗压挠曲承载力计算方法，计算值与实测值相差小于10%。

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引用次数: 0

Vertical and shear stresses at the base of a building on a deformable foundation excited by an incident P-wave pulse: Linear and nonlinear soil 受入射p波脉冲激励的可变形地基上建筑物底部的垂直应力和剪应力：线性和非线性土

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-31 DOI: 10.1016/j.soildyn.2025.110048

Vlado Gičev , Hossein Bazeghi Kisomi , Mihailo D. Trifunac , Reza Saleh Jalali , Maria I. Todorovska

In the seismic analysis of structures, it is common to assume that the seismic waves arrive vertically. In this paper, we consider a two-dimensional, continuum model of a building, supported by an embedded rectangular, deformable foundation and excited by a nonvertically incident P-wave pulse. The building and the foundation are assumed to be linearly elastic, while the soil can experience nonlinear deformations, such that, in compression, the soil behavior is elastoplastic, while, in tension, its resistance is limited to 10% of that for compression. Our results show that, when the stress limit in tension is exceeded at a point in the soil, redistribution of the normal stresses and strains occurs. For small nonlinearity in the soil, the system response does not differ significantly from that for linear soil, but it differs significantly for large nonlinearity. In the design of buildings, the traditional methods for computing the base shear and normal forces underestimate these quantities. We found that, for excitation by P-waves, the most significant effects are the large normal stresses occurring at the corners of the base of the building. The in-plane shear stresses at the building-foundation interface are also significant. At both locations, the stresses are caused by the foundation flexibility and nonvertical incidence of the seismic P-wave.

在结构的地震分析中，通常假设地震波垂直到达。在本文中，我们考虑了一个二维连续体模型，该模型由嵌入的矩形变形基础支撑，并受到非垂直入射p波脉冲的激励。假定建筑物和基础是线弹性的，而土壤会发生非线性变形，因此，在压缩时，土壤的行为是弹塑性的，而在拉伸时，其阻力被限制为压缩阻力的10%。我们的研究结果表明，当拉应力极限超过土中的某一点时，会发生正常应力和应变的重新分布。对于土壤中的小非线性，系统响应与线性土壤的响应差异不显著，但对于大非线性，系统响应差异显著。在建筑设计中，传统的计算基础剪力和法向力的方法低估了这些量。我们发现，对于纵波的激励，最显著的影响是在建筑物底部的角落发生的大正应力。建筑-基础界面处的面内剪应力也很显著。在这两个位置，应力是由基础的柔性和地震纵波的非垂直入射引起的。

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引用次数: 0

Attenuation mechanisms of ultralow-frequency seismic metamaterials via complex band structure analysis 基于复带结构分析的超低频地震超材料衰减机理

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-31 DOI: 10.1016/j.soildyn.2026.110140

Weiwei Wang , Chao Zhang , Yan Zhou , Wei Guan

Complex band structures provide a robust framework for explaining energy dissipation and bandgap formation in periodic structures, enabling more effective optimization of wave manipulation. However, research on the complex band structures of surface waves and their use in attenuation analysis of ultralow-frequency seismic metamaterials (SMs) remains limited. In this study, complex band structure analysis is used to examine the attenuation mechanisms of ultralow-frequency SMs. The results indicate that, unlike conventional pile-type SMs whose bandgaps are dominated by a single dissipative mode, zero-frequency-starting surface wave bandgaps (ultralow-frequency surface wave bandgaps) result from the combined contribution of multiple dissipative modes, thereby producing stronger and broader ultralow-frequency attenuation. In addition, the effects of material viscoelasticity and soil stratification are interpreted within the complex band structure framework. Viscoelasticity facilitates the conversion of non-dissipative surface wave modes into dissipative modes, whereas soil layering primarily influences bulk wave interference without changing the intrinsic zero-frequency bandgap mechanism. These findings deepen the physical understanding of ultralow-frequency SMs and highlight the importance of complex band structure analysis for interpreting and designing ultralow-frequency surface wave bandgaps.

复杂的能带结构为解释周期结构中的能量耗散和带隙形成提供了一个强大的框架，使波操纵更有效地优化。然而，对表面波的复杂带结构及其在超低频地震超材料（SMs）衰减分析中的应用研究仍然有限。在本研究中，采用复带结构分析来研究超低频短信号的衰减机制。研究结果表明，与传统桩式短波带隙由单一耗散模式主导不同，零频率启动表面波带隙（即超低频表面波带隙）是由多个耗散模式共同贡献的结果，从而产生更强、更宽的超低频衰减。此外，在复杂的带状结构框架内解释了材料粘弹性和土壤分层的影响。粘弹性有助于非耗散表面波模式向耗散模式的转换，而分层主要影响体波干扰，而不会改变固有的零频带隙机制。这些发现加深了对低频短波的物理认识，并强调了复杂带结构分析对解释和设计低频表面波带隙的重要性。

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引用次数: 0

Direct displacement- and probabilistic residual displacement-based design method for RC double-column bridges with additional self-centering energy dissipation dampers 附加自定心耗能阻尼器的钢筋混凝土双柱桥梁直接位移和概率残余位移设计方法

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-31 DOI: 10.1016/j.soildyn.2025.110086

Zhile Yang, Huihui Dong, Xiuli Du, Qiang Han

RC structures with additional self-centering energy dissipation damper (SCEDs) usually exhibit typical flag-shaped hysteretic characteristics, featuring excellent self-centering ability and stable energy dissipation capacity. For such structures, the self-centering ability and energy dissipation capacity are in a trade-off relationship. Structures with greater self-centering ability have smaller residual displacements, but may experience higher maximum deformation. Additionally, the residual lateral drift ratio of RC structures shows obvious discreteness. To achieve reasonable maximum and residual deformation, a direct displacement- and probabilistic residual displacement-based design (DDRDBD) method for RC double-column with additional SCEDs is developed. To this end, a database of residual displacements of RC double-column pier with additional SCEDs is established, considering uncertainties in structural parameters and ground motion characteristics. Then, probabilistic seismic demand models are developed to capture the distribution characteristics of dynamic residual displacements over different peak displacements and static residual displacements. Finally, based on the proposed DDRDBD method, a three-span double-column continuous girder bridge with additional shape memory alloy buckling-restrained braces (SBRBs) is designed and analyzed. The results indicate that the proposed DDRDBD method can accurately achieve the target maximum displacement and target residual displacement, and can effectively balance the self-centering ability and energy dissipation capacity of RC bridges with additional SCEDs.

附加自定心耗能阻尼器的RC结构通常表现出典型的旗形滞回特性，具有优异的自定心能力和稳定的耗能能力。对于这种结构，自定心能力和耗能能力是一种权衡关系。自定心能力强的结构，其残余位移较小，但最大变形较大。此外，钢筋混凝土结构的残余侧移比表现出明显的离散性。为了获得合理的最大变形和残余变形，提出了一种基于直接位移和概率残余位移的钢筋混凝土附加结构双柱设计方法。为此，考虑结构参数和地震动特性的不确定性，建立了附加SCEDs的钢筋混凝土双柱墩剩余位移数据库。然后，建立了概率地震需求模型，以捕捉动态剩余位移在不同峰值位移和静态剩余位移上的分布特征。最后，基于所提出的DDRDBD方法，对附加形状记忆合金抗屈曲支撑的三跨双柱连续梁桥进行了设计和分析。结果表明，所提出的DDRDBD方法能够准确地实现目标最大位移和目标剩余位移，并能有效地平衡附加sced的RC桥的自定心能力和耗能能力。

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引用次数: 0

Failure mechanism of tunnels subjected to stick-slip behavior of reverse fault using centrifuge model tests 利用离心模型试验研究了逆断层粘滑作用下隧道的破坏机理

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-31 DOI: 10.1016/j.soildyn.2026.110154

Chongqiang Zhu , Peixiao Duan , Zhiming Peng , Yu Huang , Zhiyi Chen

In high seismic intensity area, the stick-slip behavior of active faults often leads to severe damage in tunnels crossing the faults. However, fault stick-slip has not yet been effectively simulated in large-scale model experiments. This study developed a centrifuge-based fault simulator with surface treatments on the fault model to achieve the fault locking-rupture process under stick-slip seismic mechanisms. The failure mechanisms were further investigated and validated through complementary numerical simulations. Centrifuge model tests on tunnel failure mechanisms were conducted under reverse fault stick-slip across six slip velocities. Both experimental and numerical results reveal that fault slip induces the formation of a trishear deformation zone within the overburden soil, which experiences the most significant deformation. The tunnel exhibits a three-section failure mechanism. The left fracture, located near the extension of fault plane, is characterized by compacted rupture surfaces and an orientation nearly perpendicular to the horizontal plane, caused by combined tensile-shear and compressive-shear action. In contrast, the right fracture occurs near the right boundary of the trishear deformation zone, displaying an inclination of approximately 42° to the horizontal, caused by tensile-shear action. Numerical analysis further quantified the influence of slip velocity on the damage intensity. Therefore, the trishear deformation zone induced by fault stick-slip constitutes a critical zone for potential tunnel failure, warranting focused consideration in seismic isolation design.

在地震烈度高的地区，活动断层的粘滑特性往往导致穿越断层的隧道受到严重破坏。然而，断层粘滑尚未在大尺度模型实验中得到有效模拟。本研究开发了基于离心机的断层模拟器，对断层模型进行了表面处理，以实现粘滑地震机制下的断层闭锁-破裂过程。通过互补的数值模拟进一步研究和验证了破坏机制。在6种滑移速度下进行了逆断层粘滑破坏机制的离心模型试验。实验和数值结果均表明，断层滑动在覆盖土层内形成三剪切变形带，其中三剪切变形带的变形最为显著。隧道呈现三段破坏机制。左侧裂缝位于断裂面延伸附近，受拉剪和压剪联合作用，破裂面压实，走向接近于水平面。右侧断裂位于三剪切变形区右侧边界附近，受拉剪作用，向水平方向倾斜约42°。数值分析进一步量化了滑移速度对损伤强度的影响。因此，断层粘滑诱发的三剪切变形带是隧道潜在破坏的关键区域，在隔震设计中应重点考虑。

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引用次数: 0

Enhancing seismic resilience of precast segmental piers using external replaceable ring energy dissipator (ERRED) 外可更换环形消能器增强预制节段墩抗震性能研究

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-30 DOI: 10.1016/j.soildyn.2026.110133

Rashad Al-Shaebi , Xiaolei Jiao , Ning Li

Precast segmental piers (PSPs) are growing popular in modern bridge construction due to their rapid assembly and efficiency, yet their limited energy dissipation (ED) capacity and seismic resilience restrict deployment in high seismic regions. This study proposes a novel external replaceable ring energy dissipator (ERRED) integrated with PSP (PSP-ERRED) to enhance seismic resilience, enable rapid post-earthquake repair, and provide controlled ED and self-centering performance. Quasi-static cyclic loading tests were conducted on three PSP specimens: one conventional PSP without ERRED (P-NED) and two PSP-ERREDs (P-ERRED-1 and P-ERRED-2, with different steel band connections). The tests evaluated lateral capacity, ED, stiffness, residual displacement, and failure modes. Key results demonstrated that PSP-ERREDs increased lateral load capacity by 35.6–46.7%, ED by 54–78%, and stiffness by 35.5–46.7%, while reducing residual displacement by 74.5–83.2% compared to P-NED at 6% drift ratio. Bolted and unbolted steel band connections exhibited effective and robust mechanical performance in PSP-ERREDs. The ERRED design facilitates structural damage control and post-earthquake repairs, offering a practical and cost-effective solution for resilient bridge infrastructure in seismic zones.

预制节段墩由于其快速组装和高效，在现代桥梁建设中越来越受欢迎，但其有限的耗能能力和抗震弹性限制了在高震区的部署。本研究提出了一种新型的外可更换环形能量耗散器（ERRED）与PSP （PSP-ERRED）集成，以增强地震恢复能力，实现震后快速修复，并提供可控的ED和自定心性能。对3个PSP试件进行了准静态循环加载试验：1个不带ERRED的常规PSP试件（P-NED）和2个PSP-ERRED试件（P-ERRED-1和P-ERRED-2，不同钢带连接方式）。测试评估了横向承载力、ED、刚度、残余位移和破坏模式。关键结果表明，在6%漂移比下，与P-NED相比，psp - erred的横向承载能力提高了35.6% - 46.7%，ED提高了54-78%，刚度提高了35.5-46.7%，剩余位移减少了74.5-83.2%。螺栓连接和非螺栓连接的钢带连接在psp - erred中表现出有效和稳健的力学性能。ERRED设计有助于结构损伤控制和震后修复，为震区弹性桥梁基础设施提供实用且经济的解决方案。

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引用次数: 0

Semi-active impact damper with genetic algorithm-optimized fuzzy control for structural vibration reduction under various excitations 基于遗传算法优化模糊控制的半主动冲击阻尼器在各种激励下的结构减振

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-30 DOI: 10.1016/j.soildyn.2026.110146

Zheng Lu , Tianyi Lou , Mengyao Zhou , Dianchao Wang , Jundong Fu

Conventional control strategies for semi-active impact dampers (SAIDs) rely on the precise prediction of the structure's return to static equilibrium position, limiting their applicability under complex excitations. To address these limitations, this study proposes a fuzzy control-enhanced SAID (FSAID) with a relay genetic algorithm (GA) optimized fuzzy controller. The efficacy of the proposed control strategy and its GA-based optimization is validated. This method introduces a novel fuzzy control strategy for the SAID system which operates independently of physical models. The damping performance of the FSAID and SAID is systematically compared in structures subjected to seismic and wind excitations. Under seismic waves, the FSAID achieves improvements up to 41.76 % and 30.28 % in peak and root mean square displacement reduction compared to the conventional SAID, respectively. Under wind loads, both the FSAID and SAID exhibit a decrease in the mass block's impact frequency compared to seismic scenarios. The SAID exhibits significantly reduced or nearly loss of its effectiveness, while the FSAID system maintains superior control performance of 14 %–22 % in displacement reduction. These results demonstrate the stronger robustness and adaptability of FSAID system in mitigating structural vibrations under diverse excitations.

传统的半主动冲击阻尼器控制策略依赖于对结构返回静力平衡位置的精确预测，限制了其在复杂激励下的适用性。为了解决这些限制，本研究提出了一种模糊控制增强型模糊控制器（FSAID），并采用继电器遗传算法（GA）优化模糊控制器。验证了所提控制策略及其基于遗传算法的优化的有效性。该方法引入了一种新的模糊控制策略，使该系统独立于物理模型运行。系统比较了两种结构在地震和风作用下的阻尼性能。在地震波作用下，FSAID与常规SAID相比，峰值和均方根位移分别减少了41.76%和30.28%。在风荷载作用下，与地震情景相比，FSAID和SAID均表现出质量块体撞击频率的降低。该系统的驱替效果显著降低或几乎丧失，而FSAID系统的驱替效果保持在14% - 22%的优异水平。结果表明，FSAID系统在多种激励下具有较强的鲁棒性和适应性。

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引用次数: 0

Probabilistic active control of a seismically excited building using probabilistic fuzzy logic controller 基于概率模糊控制器的地震激励建筑物概率主动控制

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-30 DOI: 10.1016/j.soildyn.2026.110131

Azadeh Jalali , Hashem Shariatmadar , Siamak Golnargesi

Due to the linguistic and probabilistic uncertainties in real-world structures, probabilistic active vibration control of buildings has been an issue of research interest in recent years. In this study, a probabilistic fuzzy logic controller (PFLC) was proposed as a novel probabilistic active control system, in which the fuzzy logic and probability theory were integrated simultaneously. The proposed approach was applied to a 20-story benchmark building with uncertain specifications under strong seismic excitation. The uncertain parameters were random samples with a Gaussian distribution by a 10 % dispersion coefficient. The findings of the PFLC have been compared with those of a linear quadratic Gaussian (LQG) controller, interval type-2 fuzzy (IT2F) controller and an uncontrolled structural model. The control algorithms were tested on pre-earthquake and post-earthquake evaluation models. The capability of the control techniques in reducing the outcomes of the evaluation models was determined from several evaluation criteria. The analysis results showed that the PFLC was more accurate than the LQG and IT2F controllers and performed better in reducing the evaluation criteria responses due to its consideration of random variability.

由于现实结构中存在语言和概率的不确定性，建筑物的概率主动振动控制成为近年来研究的热点问题。本文提出了一种将模糊逻辑和概率论相结合的新型概率主动控制系统——概率模糊控制器。将所提出的方法应用于一个规格不确定的20层基准建筑在强地震激励下。不确定参数为随机样本，离散系数为10%，呈高斯分布。将PFLC的结果与线性二次高斯（LQG）控制器、区间2型模糊（IT2F）控制器和非受控结构模型的结果进行了比较。在地震前和地震后评价模型上对控制算法进行了验证。控制技术在降低评价模型结果方面的能力是由几个评价标准决定的。分析结果表明，PFLC由于考虑了随机变异性，比LQG和IT2F控制器更精确，在减少评价标准响应方面表现更好。

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引用次数: 0

Rapid structural seismic response prediction using physics-informed inputs and scientific training strategies 使用物理信息输入和科学训练策略的快速结构地震反应预测

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering

Pub Date : 2026-01-30 DOI: 10.1016/j.soildyn.2026.110152

Yang Liu , Jiaqi Feng , Youshui Miao , Wei Hou

Rapid and accurate prediction of structural seismic responses is essential for effective earthquake hazard mitigation. Traditional nonlinear time-history analysis methods, while highly accurate, incur substantial computational costs. Conversely, simplified structural models and analyses enhance computational efficiency but compromise predictive accuracy. Recent machine learning (ML) approaches have emerged as promising alternatives; however, their effectiveness often remains constrained by insufficient training data and limited generalization capability. To overcome these limitations, this study proposes a novel deep learning method that integrates physics-informed input representations with scientifical training strategies. Specifically, response diagrams in the time domain, depicting linear response histories of single-degree-of-freedom systems, are introduced as model inputs. These diagrams effectively encode both the time and frequency characteristics of ground motions, as well as efficiently represent the solutions to the equations of motion. Leveraging these physics-informed features, several state-of-the-art deep learning architectures adapted from the image classification domain are systematically evaluated for their ability to predict nonlinear structural seismic responses. Additionally, the study investigates the influence of various optimizers and learning rate scheduling policies on model training and predictive performance, ensuring adherence to scientifically training strategies. Furthermore, a hybrid transfer-learning framework is developed, enabling effective fine-tuning of models for different structural systems using limited datasets. By combining physical insights with advanced ML techniques, the proposed approach significantly enhances computational efficiency, prediction accuracy, and generalization capability. Through its innovative incorporation of prior physics knowledge, this work offers a robust and efficient solution for rapid seismic response prediction.

快速准确地预测结构地震反应是有效减轻地震危害的必要条件。传统的非线性时程分析方法虽然精度高，但计算量大。相反，简化的结构模型和分析提高了计算效率，但损害了预测的准确性。最近的机器学习（ML）方法已经成为有前途的替代方案；然而，它们的有效性往往受到训练数据不足和泛化能力有限的限制。为了克服这些限制，本研究提出了一种新的深度学习方法，该方法将物理信息输入表示与科学训练策略相结合。具体来说，时域响应图描述了单自由度系统的线性响应历史，作为模型输入被引入。这些图有效地编码了地面运动的时间和频率特征，并有效地表示了运动方程的解。利用这些物理信息特征，从图像分类领域改编的几种最先进的深度学习架构被系统地评估了它们预测非线性结构地震反应的能力。此外，研究还考察了各种优化器和学习率调度策略对模型训练和预测性能的影响，以确保遵循科学的训练策略。此外，开发了一个混合迁移学习框架，能够使用有限的数据集对不同结构系统的模型进行有效的微调。通过将物理洞察与先进的机器学习技术相结合，该方法显著提高了计算效率、预测精度和泛化能力。通过创新地结合先前的物理知识，这项工作为快速地震反应预测提供了一个强大而有效的解决方案。

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引用次数: 0