Article
Engineering, Civil
Mauricio Diaz Arancibia, Pinar Okumus
Summary: High skew in bridges can cause issues such as deck cracking, in-plane superstructure displacements, and bearing distress. This study evaluated live load distribution and in-plane displacements in skewed bridges and found that bridge design details and skew angle can influence these factors. The American Association of Highway and Transportation Officials Load and Resistance Factor Design Bridge Design Specifications (AASHTO LRFD BDS) accurately predicted shear and moment distribution, but conservative predictions were made for live load distribution. Larger skew angles led to greater transverse displacements at girder bearings, while longitudinal displacements were not affected. Mixed bearing fixity arrangements limited superstructure transverse in-plane displacements.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Fengming Ren, Zhendan Zheng, Ming-Xiang Xiong, Jing Lin, Boyuan Liu
Summary: The study used glass fiber reinforced polymer (GFRP) tubes to reinforce concrete-filled multicellular steel tubular (CF-MCST) shear walls. Through fiber and finite element analyses, it was found that GFRP tubes had little effect on elastic stiffness but significantly improved load-carrying and energy-dissipating capacities of the CF-MCST shear walls under cyclic loads.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Muhammad Kashif Razzaq, Khaled Sennah, Faouzi Ghrib
Summary: This paper investigates the live load distribution factors of composite braces steel I-girder bridges under CHBDC truck loading conditions through a parametric study and 3D finite-element modeling. The study suggests that CHBDC equations may underestimate girder moments for certain span lengths and overestimate shear distribution factors in fatigue limit state.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2021)
Article
Engineering, Mechanical
Jingfeng Zhang, Chaokang Tong, Liang Feng, Wei Du, Fangwen Wu
Summary: This study investigates the residual load-carrying performance of reinforced concrete beams after impact through experimental and numerical analysis. The results show that the resistance and stiffness of the beams decrease after impact, and the reinforcement ratio of longitudinal reinforcements and the yield state of compressive reinforcements play a critical role in the residual performance.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Construction & Building Technology
Oday Asal Salih, Nathem A. H. AL-Saffar, Suhaib Yahya Kasim Al-Darzi
Summary: The rehabilitation of Mosul City's Second Bridge has greatly improved the city's infrastructure. Through laboratory experiments and numerical analysis, it was determined that using a square pad is more effective than roller supports in preventing local buckling.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
As'ad Munawir, Harimurti, Queen Arista Rosmania Putri Sumarsono
Summary: This study examines the response of bored piles with asymmetrical pile cap in the Auditorium Building of Brawijaya University to seismic loads using a 3D finite element-numerical approach. The study finds that the side slope of the pile cap can increase the lateral resistance, with the highest resistance occurring in the horizontal direction opposite to the loading direction. Additionally, the configuration of asymmetrical piles leads to increased deflection, but the values obtained from the 3D finite element method are within the recommended range.
APPLIED SCIENCES-BASEL
(2022)
Article
Construction & Building Technology
Ying Gao, Feiyang Xu, Xinmiao Meng, Ye Zhang, Hongda Yang
Summary: This study investigated the lateral torsional buckling of steel-timber composite beams with partial interaction, demonstrating that increasing timber thickness can enhance the stiffness and load-bearing capacity of connectors. Suppression of lateral torsional buckling substantially increased the maximum strength of composite beams. The interface shear stiffness was found to be a key factor in controlling the stiffness and failure modes of the beams.
ADVANCES IN STRUCTURAL ENGINEERING
(2022)
Article
Engineering, Marine
Yi Wang, Jun Huang, Menglan Duan, Chengong Sun, Xiongfei Wang
Summary: This paper studies the change and deformation laws of lateral indentation in pipe-in-pipe (PIP) structure through experimental and numerical methods, and observes three stages of deformation behavior for PIP during lateral indentation. The effects of the diameter and wall thickness of inner and outer pipes on the relationship between the indentation load and lateral indentation were also studied, providing a reference for the design and analysis of PIP structures.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Ocean
Sanjay Nimbalkar, Sudip Basack
Summary: This paper presents an in-depth study on pile groups in clay subjected to cyclic lateral loading. A three-dimensional dynamic finite element model is developed to analyze the axial and lateral pile capacities and displacements. The results are validated by comparison with available test data, and design curves are constructed based on extensive parametric studies with field data.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2022)
Article
Construction & Building Technology
Mingze Wu, Shenggang Fan, Hang Zhou, Yunlong Han, Dun Liang
Summary: This study conducted a series of experimental research on the fire resistance of stainless steel-concrete composite beams. The results showed that the specimens of stainless steel-concrete composite beams exhibited a bending-shear failure mode in fire tests. Moreover, the load ratio had a key influence on the fire resistance of the composite beams.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2022)
Article
Engineering, Marine
Lan Lin, Fa-cheng Wang
Summary: This study systematically investigates the structural behavior on one classic type CFST rock-socketed pile under lateral loading through the finite element analysis, from the pile member behavior to the cross-sectional confinement effect between the constitutive components. The influence of the steel tube on the lateral displacement, critical load, and pile-soil interaction is analyzed. The findings may promote more efficient design and construction of the CFST pile under lateral load.
Article
Construction & Building Technology
Huayan Chen, Fengxuan Wang, Caisong Luo, Mianyue Yang, Chaojiang Fu, Bizhen Wang, Youfeng Lin
Summary: The mechanical behavior of concrete-filled steel tubes (CFST) subjected to lateral impact was studied using drop hammer testing and finite element analysis (FEM). The results showed that the maximum stress occurred in the steel tube part and fixed support, while other parts remained in the elastic or elastoplastic stage. The distribution of inertial force in CFST was significantly influenced by impact velocity, while impact mass and cross-sectional steel ratio had no discernible impact.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Cagri Demir, Murat Dicleli
Summary: Design equations are proposed to calculate the internal forces in hammer-head bridge pier components under the effect of live loads. The equations are validated using a finite element model of an existing bridge and sensitivity analyses on a benchmark bridge. The results show that the number of girders, girder spacing, girder type, slab thickness, and overhang distance significantly affect the magnitude and distribution of the girder live load support reactions and hammer-head pier forces. Parametric analyses and regression analyses are performed to obtain equations for estimating the maximum internal forces in the pier components.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Mehrdad Hejazi, Amir Mehdian
Summary: This paper investigates the performance of Persian skewed brick masonry arch bridges under uniform and line loads, including three types of arches. Two-span and six-span bridges are analyzed using the three-dimensional non-linear finite element method, considering various parameters. The study determines suitable ranges of skew angle for maximum load-bearing capacity for different loadings and arch types.
Article
Engineering, Civil
Wen-ting Zhang, Chun-sheng Wang, Meng-yi Yang
Summary: The modern composite cable-stayed bridge has a wider deck and exhibits a significant shear lag effect in the slab. It is crucial to investigate the shear lag phenomena of the main beam under both dead and live loads. This study proposes a simplified method for evaluating the effective width considering superposition of axial forces.
STRUCTURE AND INFRASTRUCTURE ENGINEERING
(2023)
Article
Materials Science, Characterization & Testing
Devin K. Harris, Amir Gheitasi, Marc Hansen
JOURNAL OF TESTING AND EVALUATION
(2020)
Article
Engineering, Civil
Mohamad Alipour, Devin K. Harris
ENGINEERING STRUCTURES
(2020)
Article
Engineering, Civil
M. S. Dizaji, M. Alipour, D. K. Harris
Summary: This paper introduces a novel method for detecting and reconstructing internal damage in structural members using structural health monitoring and digital image correlation techniques. Results demonstrate the successful extraction of detailed internal damage information, showing promise as a subsurface damage detection method.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Mechanical
M. Shafiei Dizaji, M. Alipour, D. K. Harris
Summary: This research uses 3D-DIC to detect internal anomalies of structural components and infer material properties based on boundary measurements. The study demonstrates successful detection of subsurface defects and correlation with experimental responses during loading.
EXPERIMENTAL TECHNIQUES
(2022)
Article
Computer Science, Artificial Intelligence
Tianshu Li, Mohamad Alipour, Devin K. Harris
Summary: This study introduces a new method to extract condition information from untapped resources using natural language processing, achieving a 94.12% F1 score with a sequence labeling model. The proposed approach demonstrated improvements compared to baseline models and showed the capability of detecting condition changes with respect to previous inspection records.
ADVANCED ENGINEERING INFORMATICS
(2021)
Article
Construction & Building Technology
Tianshu Li, Mohamad Alipour, Devin K. Harris
Summary: This study improves the consistency of bridge condition rating by using narrative descriptions from inspection reports, proposing a data-driven framework for two applications. By employing recurrent neural networks and an attention mechanism, a hierarchical architecture was developed to enhance the performance of condition recommendation.
AUTOMATION IN CONSTRUCTION
(2021)
Article
Engineering, Civil
Tianshu Li, Mohamad Alipour, Bridget M. Donaldson, Devin K. Harris
Summary: Bat inventory surveys on bridges, structures, and dwellings are crucial for protecting endangered bat species. This paper utilizes deep learning to develop an image classification system that identifies bat indicators with 92.0% accuracy. A prototype web application has been created to facilitate user interaction and classification of stain images, expected to aid in bat inventory surveys and conservation efforts.
TRANSPORTATION RESEARCH RECORD
(2021)
Article
Engineering, Civil
Mehrdad S. Dizaji, Devin K. Harris, Bernie Kassner, Jeffrey C. Hill
Summary: The collaborative investigation on the Mecklenburg Bridge conducted by UVA and the Virginia Transportation Research Council focused on using 3D-DIC deformation measurements and laser scanning to assess the behavior of the repaired bridge beam. Results showed that buckling did not occur, offering a method to evaluate the effectiveness of repaired steel beam ends.
JOURNAL OF CIVIL STRUCTURAL HEALTH MONITORING
(2021)
Article
Engineering, Multidisciplinary
Mehrdad S. Dizaji, Devin K. Harris, Mohamad Alipour
Summary: This paper introduces a novel technique that combines full-field three-dimensional digital image correlation (3D-DIC) measurements with a topology optimization framework to detect internal or unseen damage in structural steel members. The method uses optical cameras to measure surface strains and deformations, and then employs an optimization approach to detect existing damage and reconstruct subsurface abnormalities. Experimental tests on large-scale structural steel beams demonstrate the feasibility and accuracy of the proposed method.
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2022)
Article
Construction & Building Technology
Shuzhen Yang, Devin K. Harris
Summary: Ensuring the safety and reliability of infrastructures requires accurate and rapid condition assessment. Image technologies as a non-destructive evaluation tool offer opportunities to achieve this by resolving surface flaws and defects and linking observable features to operational performance.
ADVANCES IN STRUCTURAL ENGINEERING
(2023)
Article
Engineering, Civil
Abdou K. Ndong, Muhammad M. Sherif, Bernie Kassner, Devin K. Harris, Osman E. Ozbulut
Summary: This study explores the potential use of refined analysis methods to increase load ratings of concrete T-beam bridges by reducing live-load distribution factors. Finite-element models of 25 in-service bridges were developed to analyze the effects of different vehicle loadings, including special hauling vehicles. The study suggests that refined analysis can improve rating factors for special hauling vehicles, but may result in larger shear distribution factors.
JOURNAL OF BRIDGE ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Shuzhen Yang, Devin K. Harris
Summary: Knowing the health condition of a structure during its service life is essential. This study explores the use of high-resolution 3D laser scanning as a non-destructive evaluation tool to create precise computational models. A direct scan-to-model strategy is proposed, along with a localized pathway to update only the damaged parts of the finite element model, reducing computational costs. The pathways are validated through laboratory-scale tensile testing and provide a foundation for establishing the link between visually observable geometric and numerical models used by engineers to understand system performance.
Article
Engineering, Civil
Abdou K. Ndong, Muhammad M. Sherif, Bernie Kassner, Osman E. Ozbulut, Devin K. Harris
Summary: Recent revisions to federal guidelines require state DOTs to rate bridges with SHVs and EVs. This research used refined analysis to calculate live load distribution factors of steel girder bridges considering the impacts of SHVs and EVs. Finite element models of 21 steel girder bridges from Virginia were used to determine the distribution factors under different lane loading conditions. The developed models can identify bridges that can be improved through refined analysis.
ENGINEERING STRUCTURES
(2023)
Proceedings Paper
Engineering, Mechanical
Mehrdad Shafiei Dizaji, Mohamad Alipour, Devin K. Harris, Zhu Mao
Summary: Most critical defects in structural components are not visible at the surface, making their detection challenging. This research proposes a method using optical cameras and 3D-DIC technique for damage identification. The behavior of the structural component is represented and used for reconstructing subsurface abnormalities through an inverse problem. The goal of this research is to demonstrate the feasibility and practicability of the proposed method through experiments.
ROTATING MACHINERY, OPTICAL METHODS & SCANNING LDV METHODS, VOL 6
(2023)
Article
Engineering, Civil
Mohamad Alipour, Devin K. Harris
JOURNAL OF CIVIL STRUCTURAL HEALTH MONITORING
(2020)
Article
Engineering, Civil
Renbing An, Jiacong Yuan, Yi Pan, Duhang Yi
Summary: Traditional timber structures built on sloped land are more susceptible to seismic damage compared to structures built on flat land. The upper portion of the structure is found to be the weak point on sloped land, with potential issues such as tenon failure and column foot sliding.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Elyas Bayat, Federica Tubino
Summary: The current design guidelines for assessing floor vibration performance do not consider the influence of variability in the walking path on the dynamic response of floors. This study investigates the dynamic response of floors under a single pedestrian walking load, taking into account the randomness of the walking path and load. The effectiveness of the current guidelines in predicting floor response is critically assessed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Gao Ma, Chunxu Hou, Hyeon-Jong Hwang, Linghui Chen, Zhenhao Zhang
Summary: Minimizing earthquake damage and improving repair efficiency are the main principles of resilient structures. This study proposed a repairable column with UHPC segments and replaceable energy dissipaters. The test results showed that the columns with UHPC segments and replaceable dissipaters exhibited high strength, deformation capacity, and energy dissipation.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Kartheek S. M. Sonti, Pavan Kumar Penumakala, Suresh Kumar Reddy Narala, S. Vincent
Summary: In this study, the compressive behavior of alumina hollow particles reinforced aluminum matrix syntactic foams (AMSF) was investigated using analytical, numerical, and experimental methods. The results showed that the FE solver ABAQUS could accurately predict the elastic and elastio-plastic behavior of AMSFs. The study also suggested that FE models have great potential in developing new materials and composites under compression loading.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Zheqi Peng, Xin Wang, Zhishen Wu
Summary: In this study, the statistical modeling of fiber-reinforced polymer (FRP) cables using the classic fiber bundle model is explored. The study considers important features of large-scale multi-tendon FRP cables, such as initial random slack and uneven tensile deformation among tendons. A parametric study and reliability analysis are conducted to predict the load-displacement relation and design thousand-meter-scale FRP cables. The study emphasizes the relation between the reliability index beta of the cable and the safety factor gamma of the FRP material.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Yanchao Shi, Shaozeng Liu, Ye Hu, Zhong-Xian Li, Yang Ding
Summary: This paper introduces a damage assessment method for reinforced concrete (RC) columns under blast loading, using modal parameter measurement as the evaluation index. The validity of the proposed method is validated through numerical and experimental analysis. The results show that this modal-based damage assessment method is applicable for non-destructive evaluation of blast-induced damage of RC columns.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Xiaolin Zou, Maosheng Gong, Zhanxuan Zuo, Qifang Liu
Summary: This paper proposes an efficient framework for assessing the collapse capacity of structures in earthquake engineering. The framework is based on an accurate equivalent single-degree-of-freedom (ESDOF) system, calibrated by a meta-heuristic optimization method. The proposed framework has been validated through case studies, confirming its accuracy and efficiency.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jie Hu, Weiping Wen, Chenyu Zhang, Changhai Zhai, Shunshun Pei, Zhenghui Wang
Summary: A deep learning-based rapid peak seismic response prediction model is proposed for the most common two-story and three-span subway stations. The model predicts the peak seismic responses of subway stations using a data-driven approach and limited information, achieving good predictive performance and generalization ability, and demonstrating significantly higher computational efficiency compared to numerical simulation methods.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jin Ho Lee, Jeong-Rae Cho
Summary: A simplified model is proposed to estimate the earthquake responses of a rectangular liquid storage tank considering the fluid-structure interactions. The complex three-dimensional structural behavior of the tank is represented by a combination of fundamental modes of a rectangular-ring-shaped frame structure and a cantilever beam. The system's governing equation is derived, and earthquake responses such as deflection, hydrodynamic pressure, base shear, and overturning moment are obtained from the solution.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
W. J. Lewis, J. M. Russell, T. Q. Li
Summary: The work discusses the key features and advantages of optimal 2-pin arches shaped by statistically prevalent load and constant axial stress. It extends the design space of symmetric arches to cover asymmetric forms and provides minimum values of constant stress for form-finding of such arches made of different materials. The analysis shows that constant stress arches exhibit minimal stress response and have potential implications for sustainability and durability of future infrastructure.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Wen-ming Zhang, Han-xu Zou, Jia-qi Chang, Tian-cheng Liu
Summary: Saddle position is crucial in the construction and control of suspension bridges. This study proposes an analytical approach to estimate the saddle positions in the completed bridge state and discusses the calculation under different definitions. The relationship between the saddle position and the tower's centerline is analyzed, along with the eccentric compression of the tower. The feasibility of the proposed method is verified through a real-life suspension bridge.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Shaise K. John, Alessio Cascardi, Yashida Nadir
Summary: This study experimentally investigated the use of TRM material for reinforcing concrete columns. The results showed that increasing the number of textile layers effectively increased the axial strength. Additionally, the choice of fiber type and hybrid textile configuration also had a significant impact on strength improvement. A new design model that considers the effects of both the confining matrix and textile was proposed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chandrashekhar Lakavath, S. Suriya Prakash
Summary: This study experimentally investigated the shear behavior of post-tensioned UHPFRC girders, considering factors such as prestress level, fiber volume fraction, and types of steel fibers. The results showed that increasing prestress and fiber dosage could enhance the ultimate load-carrying capacity of the girders, reduce crack angle, and increase shear cracking load.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Vahid Goodarzimehr, Siamak Talatahari, Saeed Shojaee, Amir H. Gandomi
Summary: In this paper, an Improved Marine Predators Algorithm (IMPA) is proposed for size and shape optimization of truss structures subject to natural frequency constraints. The results indicate that IMPA performs better in solving these nonlinear structural optimization problems compared to other state-of-the-art algorithms.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chun-Xu Qu, Jin-Zhao Jiang, Ting-Hua Yi, Hong-Nan Li
Summary: In this paper, a computer vision-based method is proposed to monitor the deformation and displacement of building structures by obtaining 3D coordinates of surface feature points. The method can acquire a large number of 3D coordinates in a noncontact form, improve the flexibility and density of measurement point layout, and is simple and cost-effective to operate.
ENGINEERING STRUCTURES
(2024)
