Open Access
ARTICLE
Jiuqing Zhou1,2,3, Daming Lin4, Leifa Li1,2,3, Guanghui Zhang1,2,3, Shumao Qiu4,*
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2025.060298
（This article belongs to the Special Issue: Advanced Data Mining in Bridge Structural Health Monitoring)
Abstract The objective of this research is to assess the seismic behavior of the continuous T-beam bridge located at Kulungou in Xinjiang. In addition to traditional static and modal analyses, this study introduces a novel approach by comprehensively examining the performance of the bridge during construction stages, under ultimate load capacities and seismic load. Compliance with regulatory standards is verified by the static analysis, which also yields a thorough comprehension of stress distribution across various stages of construction. By unveiling the initial 100 vibration modes, the modal analysis has significantly enhanced our comprehension and established a… More >
Open Access
ARTICLE
Chunling Yan1,2, Renzhang Yan1,2,*, Zhenxiu Zhan1, Xiyang Chen1, Yu Han3
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2025.058780
Abstract
The steel tube arch rib in a large-span concrete-filled steel tube arch bridge has a large span and diameter, which also leads to a larger weld seam scale. Large-scale welding seams will inevitably cause more obvious welding residual stress (WRS). For the purpose of studying the influence of WRS from large-scale welding seam on the mechanical properties of steel tube arch rib during arch rib splicing, test research and numerical simulation analysis on the WRS in arch rib splicing based on the Guangxi Pingnan Third Bridge, which is the world’s largest span concrete-filled steel… More >
Open Access
REVIEW
Ahed Habib1,*, Zaid A. Al-Sadoon2, Murat Saatcioglu3, Ausamah Al Houri4, Mohamed Maalej2, Salah Al-Toubat2, Mazen Shrif2
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2025.059524
Abstract Squat reinforced concrete (RC) shear walls are essential structural elements in low-rise buildings, valued for their high strength and stiffness. However, research on their seismic behavior remains limited, as most studies focus on tall, slender walls, which exhibit distinct failure mechanisms and deformation characteristics. This study addresses this gap by conducting an extensive review of existing research on the seismic performance of squat RC shear walls. Experimental studies, analytical models, and numerical simulations are examined to provide insights into key factors affecting wall behavior during seismic events, including material properties, wall geometry, reinforcement detailing, and More >
Open Access
ARTICLE
Zhishui Sheng1, Hong Jiang1, Gang Liu2, Fulai Zhang3, Wei Zhang3,*
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.059662
Abstract Concrete materials are employed extensively in a variety of large-scale structures due to their economic viability and superior mechanical properties. During the service life of concrete structures, they are inevitably subjected to damage from impact loading from natural disasters, such as earthquakes and storms. In recent years, the phase-field model has demonstrated exceptional capability in predicting the stochastic initiation, propagation, and bifurcation of cracks in materials. This study employs a phase-field model to focus on the rate dependency and failure response of concrete under impact deformation. A viscosity coefficient is introduced within the phase-field model… More >
Open Access
ARTICLE
Jingxiang Zhou1, Qiaoling Zhou1,*, Chunlian Liang1, Yulu Guo1, Zhao Xiao2, Yingfeng Xu1
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.058501
Abstract
Streamlined box girders serve as a prevalent choice for the primary structural elements in large-span suspension bridge designs. With the increase in traffic demands, the design of such girders is evolving towards wider bridge decks and larger aspect ratios (B/D). To obtain more effective and aerodynamic design shapes for streamlined box girders, it is essential to investigate the impact of B/D on their aerodynamic performance. Accordingly, in this study we investigate the buffeting responses of large-span suspension bridges using girders of varying aspect ratios (B/D of 7.5, 9.3, and 12.7). First, the aerodynamic coefficients… More >
Open Access
ARTICLE
Zhe Gong1, Ge Yan2, Jie Ma1, Chang-Lin Yan2, Fu-Kang Shen1, Hu Li3, Hua-Ping Wang1,*
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.057916
（This article belongs to the Special Issue: Sensing Data Based Structural Health Monitoring in Engineering)
Abstract Vacuum pressure vessels are one of the critical components in the aerospace field, and understanding the mechanical behavior feature is particularly important for safe operation. Therefore, it is meaningful to obtain the stress and strain distributions in the key positions of the vacuum tank, which can contribute to the safe performance assessment, operation efficiency, and fault analysis. Hence, this paper provides the distribution characteristics and variation rules of stress and tank strain of vacuum under different internal and external pressures through the elastic theoretical analysis and iteration method. The quasi-distributed fiber Bragg grating (FBG) sensors… More >
Open Access
ARTICLE
Yang Wang1, Zhe Wu2,*, Kaixing Zhang3, Youzhi Wang2,*
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.058451
Abstract A steel-concrete composite cable-stayed bridge features integrated steel girders and concrete decks linked by shear connectors to support loads, but stress concentration in wet joints can lead to cracking. In-situ tests were conducted on key sections of steel-concrete composite cable-stayed bridges to analyze the stress-strain evolution of wet joints under environmental factors, constraints, and complex construction processes. The coordinated working performance of the bridge decks was also analyzed. The results indicate that temperature is the key factor affecting the stresses and strains in wet joint concrete. Approximately 7 days after casting the wet joint concrete, the… More >
Open Access
REVIEW
Jie Zou1,2, Ping Wu2,*, Jianwei Chen3, Weijie Fan2, Yidong Xu2
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.058864
Abstract As an essential part of the urban infrastructure, underground utility tunnels have a long service life, complex structural performance evolution and dynamic changes both inside and outside the tunnel. These combined factors result in a wide variety of disaster risks during the operation and maintenance phase, which make risk management and control particularly challenging. This work first reviews three common representative disaster factors during the operation and maintenance period: settlement, earthquakes, and explosions. It summarizes the causes of disasters, key technologies, and research methods. Then, it delves into the research on the intelligent operation and More >
Open Access
ARTICLE
Yuanyin Song1, Wenwei Wang2,*
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.055382
（This article belongs to the Special Issue: Health Monitoring and Rapid Evaluation of Infrastructures)
Abstract To meticulously dissect the cracking issue in the transverse diaphragm concrete, situated at the anchor point of a colossal large-span, single cable plane cable-stayed bridge, this research paper adopts an innovative layered modeling analysis methodology for numerical simulations. The approach is structured into three distinct layers, each tailored to address specific aspects of the cracking phenomenon. The foundational first layer model operates under the assumption of linear elasticity, adhering to the Saint Venant principle. It narrows its focus to the crucial zone between the Bp20 transverse diaphragm and the central axis of pier 4’s support,… More >
Open Access
ARTICLE
Wenhai Zhao1, Wanrun Li1,2,*, Ximei Li1,2, Shoutu Li3, Yongfeng Du1,2
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.057759
（This article belongs to the Special Issue: Sensing Data Based Structural Health Monitoring in Engineering)
Abstract Addressing the current challenges in transforming pixel displacement into physical displacement in visual monitoring technologies, as well as the inability to achieve precise full-field monitoring, this paper proposes a method for identifying the structural dynamic characteristics of wind turbines based on visual monitoring data fusion. Firstly, the Lucas-Kanade Tomasi (LKT) optical flow method and a multi-region of interest (ROI) monitoring structure are employed to track pixel displacements, which are subsequently subjected to band pass filtering and resampling operations. Secondly, the actual displacement time history is derived through double integration of the acquired acceleration data and… More >
Open Access
ARTICLE
Yueshun Chen1,2,*, Yupeng Zhou1, Cao Yin3
Structural Durability & Health Monitoring, DOI:10.32604/sdhm.2024.057005
（This article belongs to the Special Issue: Sensing Data Based Structural Health Monitoring in Engineering)
Abstract Computed tomography (CT) can inspect the internal structure of concrete with high resolution, but improving the accuracy of measurements remains a key challenge due to the reliance on complex image processing and significant manual intervention. This study aims to optimize CT scanning parameters to enhance the accuracy of measuring crack widths and rebar volumes in reinforced concrete. Nine sets of specimens, each with varying rebar diameters and concrete cover thicknesses, were scanned before and after corrosion using an Optima CT scanner, followed by three-dimensional reconstructions using Avizo software. The effects of threshold values and “Erosion” More >
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