Explanipedia

Parametric design and numerical analysis of super long span upper-support thrust-bearing concrete arch bridge Open

Yaojun Ge, Li Zheng, Zhuozhang Deng, Genshen Fang · 2025

With the progress of construction technology and the application of high-performance materials, arch bridges are constantly breaking the span records. This study conducts parametric design and numerical analysis on upper-support thrust-bea…

Revised modality-driven approach for enhanced analytical solutions to complex multi-mode coupled flutter: influence of suspension bridge configurations Open

Jinbo Zhu, Yongxin Yang, Jinjie Zhang, Haojun Xu, Yaojun Ge , et al. · 2025

Development and application of a tornado database for the Chinese mainland Open

Genshen Fang, Yi Zhang, Jinxin Cao, Weichiang Pang, Jin Wang , et al. · 2024

Time-domain state-space model formulation of motion-induced aerodynamic forces on bridge decks Open

Simian Lei, Luca Patruno, Claudio Mannini, Stefano de Miranda, Yaojun Ge · 2024

Motion-induced aerodynamic forces playa fundamental role in the stability and buffeting analysis of long-span bridges, which are traditionally performed in the frequency domain adopting the well-known approach based on flutter derivatives …

Full-Scale/Model Test Comparisons to Validate the Traditional Atmospheric Boundary Layer Wind Tunnel Tests: Literature Review and Personal Perspectives Open

Xiao-Xiang Cheng, Lin Zhao, Yaojun Ge, Jun Dong, Yang Peng · 2024

For this paper, full-scale/model test comparisons to validate the traditional atmospheric boundary layer (ABL) wind-tunnel simulation technique performed until now by the wind engineering community are systematically reviewed. The engineer…

Robustness Evaluation of Aerodynamic Flutter Stability and Aerostatic Torsional Stability of Long-Span Suspension Bridges Open

Qing Xia, Yaojun Ge · 2023

Structural robustness is defined by the international engineering community as the capabilities of structural systems that enable them to survive unforeseen or unusual circumstances. In order to highlight the unforeseen and unusual charact…

A New Research Scheme for Full-Scale/Model Test Comparison of Wind Effects on Pengcheng Cooling Tower Based on Sinusoidal Flow Field Simulations Open

Xiao-Xiang Cheng, Lin Zhao, Yaojun Ge, Baijian Wu, Jun Dong , et al. · 2023

When examining the history of wind engineering, it is evident that many full-scale/model test comparisons have found noticeable differences between the results. Although understanding the causes of these differences is important for practi…

Intelligent Identification and Verification of Flutter Derivatives and Critical Velocity of Closed-Box Girders Using Gradient Boosting Decision Tree Open

Neyu Chen, Yaojun Ge, Claudio Borri · 2023

Flutter derivatives (FDs) of the bridge deck are basic aerodynamic parameters by which flutter analysis determines critical flutter velocity (CFV), and they are traditionally identified by sectional model wind tunnel tests or computational…

Numerical simulation and validation of local wind environment of twin-box girder with wind barriers Open

Fengying Wu, Lin Zhao, Fengchan Cao, Yaojun Ge · 2023

Computational fluid dynamics (CFD) was used to reproduce wind fields around a twin-box girder. Wind tunnel tests and field measurements were conducted to verify the accuracy of the CFD results. Variations in wind speed at different heights…

Shape optimization of closed-box girder considering dynamic and aerodynamic effects on flutter: a CFD-enabled and Kriging surrogate-based strategy Open

Jie Zheng, Genshen Fang, Zilong Wang, Lin Zhao, Yaojun Ge · 2023

Shape optimization of single box girder allows the bridge to achieve the most favourable aerodynamic performance. Currently, aerodynamic optimization of bridge deck is usually achieved by traversing all potential schemes using wind tunnel …

Flutter Control of Active Aerodynamic Flaps Mounted on Streamlined Bridge Deck Fairing Edges: An Experimental Study Open

Zilong Wang, Lin Zhao, Hanlin Chen, Genshen Fang, Ke Li , et al. · 2023

Traditional aerodynamic measures with fixed geometric shapes make it difficult to relieve the wind-induced vibration issues under the continuous expansion of bridge spans. Active aerodynamic control measures would be an alternative way to …

Multiscale Time Series Decomposition for Structural Dynamic Properties: Long-Term Trend and Ambient Interference Open

Xiaolei Chu, Wei Cui, Shengyi Xu, Lin Zhao, Hua Guan , et al. · 2023

In structural health monitoring (SHM), variations of structural dynamic properties are paramount to indicate the health status of structures. Structural dynamic properties are time variant due to various long-term effects (e.g., structural…

Theoretical Analysis of Ultimate Main Span Length for Arch Bridge Open

Xianxiong Zhang, Zhuozhang Deng, Genshen Fang, Yaojun Ge · 2022

The advancement of construction techniques and high-performance sustainable materials enables the increase of span length for arch bridge. It is of great importance to study the theoretical ultimate span length of arch bridge. Based on the…

A New Research Scheme for Full-Scale/Model Test Comparisons to Validate the Traditional Wind Tunnel Pressure Measurement Technique Open

Xiao-Xiang Cheng, Lin Zhao, Shitang Ke, Yaojun Ge · 2022

A new research scheme for a full-scale/model test comparison is proposed for effectively validating the wind tunnel pressure measurement technique in this article. With the new research scheme and using quantifiable data, future full-scale…

Extreme wind speed prediction in mountainous area with mixed wind climates Open

Teng Ma, Wei Cui, Lin Zhao, Yejun Ding, Genshen Fang , et al. · 2022

In addition to common synoptic wind system, the mountainous terrain forms a local thermally driven wind system, which makes the mountain wind system have strong terrain dependence. Therefore, in order to estimate the reliable design wind s…

Deep learning representation of flow time history for complex flow field Open

Qingliang Zhan, Chunjin Bai, Yaojun Ge · 2022

Flow analysis and low-dimensional representation model is of great significance in studying the complex flow mechanism. However, the turbulent flow field has complex and unstable spatiotemporal evolution feature, and it is difficult to est…

Flow feature extraction models based on deep learning Open

Qingliang Zhan, Yaojun Ge, Chunjin Bai · 2022

Extraction and recognition of the features of flow field is an important research area of fluid mechanics. However, the wake flow field of object immersed in fluid is complicated in the case of medium- and high-Reynolds number, thus it is …

From individual to collective: Collective memory from a psychological perspective Open

Yaojun Ge, Hai Li · 2021

共享现实和网络聚合等心理机制; 另一方面, 聚焦于既存的记忆, 阐释了集体记忆有效性的心理原则, 同时, 记忆的身份关联性得到了确证。集体记忆心理学研究仍需拓展视野, 加强对文化记忆的有效性研究, 密切关注媒介技术变革引发的记忆变化, 积极推进本土化研究。关键词集体记忆, 对话, 流行病学, 交流记忆, 文化记忆

openVFIFE: An Object-Oriented Structure Analysis Platform Based on Vector Form Intrinsic Finite Element Method Open

Biao Tan, Shuyang Cao, Genshen Fang, Jinxin Cao, Yaojun Ge · 2021

The vector form intrinsic finite (VFIFE) method is a new and promising structural analysis technique that has many advantages as compared with the conventional finite element method (FEM) in analyzing the complex behaviors of a structure. …

Life-cycle assessment for flutter probability of a long-span suspension bridge based on field monitoring data Open

Xiaolei Chu, Hung Nguyen Sinh, Wei Cui, Lin Zhao, Yaojun Ge · 2021

Assessment of structural safety status is of paramount importance for existing bridges, where accurate evaluation of flutter probability is essential for long-span bridges. In current engineering practice, at the design stage, flutter crit…

A Novel Shape Finding Method for the Main Cable of Suspension Bridge Using Nonlinear Finite Element Approach Open

Weiliang Zhu, Yaojun Ge, Genshen Fang, Jinxin Cao · 2021

The determination of the final cable shape under the self-weight of the suspension bridge enables its safe construction and operation. Most existing studies solve the cable shape segment-by-segment in the Lagrangian coordinate system. This…

Post flutter energy map for H-shaped bridge girder Open

Lin Zhao, Chuanxin Hu, Zhiyong Zhou, Yaojun Ge · 2021

In this study, with the help of the three-degree-of-freedom random forced vibration device developed independently by Tongji University, high-precision measurement of bridge aerodynamic force under large torsional amplitude was realized, a…

Estimation of tropical cyclone wind hazards in coastal regions of China Open

Genshen Fang, Lin Zhao, Shuyang Cao, Ledong Zhu, Yaojun Ge · 2020

Coastal regions of China feature high population densities as well as wind-sensitive structures and are therefore vulnerable to tropical cyclones (TCs) with approximately six to eight landfalls annually. This study predicts TC wind hazard …

Estimation of Tropical Cyclone Wind Hazards in Coastal Regions of China Open

Genshen Fang, Lin Zhao, Shuyang Cao, Ledong Zhu, Yaojun Ge · 2020

Coastal regions of China feature high population densities as well as wind-sensitive structures and are therefore vulnerable to tropical cyclones (TCs) with approximately 6~8 landfalls annually. This study predicts TC wind hazard curves in…

Evolution Mechanism of Wind Vibration Coefficient and Stability Performance during the Whole Construction Process for Super Large Cooling Towers Open

Shitang Ke, Peng Zhu, Lu Xu, Yaojun Ge · 2019

Wind-induced damage during the construction process and the evolution of damage over time are important reasons for the wind-induced destruction of large cooling towers. In fact, wind vibration coefficient and stability performance will ev…

Towards Scientific Discovery, Technological Innovation and Engineering Creation Open

Yaojun Ge · 2019

Data-based wind disaster climate identification algorithm and extreme wind speed prediction Open

Wei Cui, Teng Ma, Lin Zhao, Yaojun Ge · 2019

An extreme wind speed estimation method that considers wind hazard climate types is critical for design wind load calculation for building structures affected by mixed climates. However, it is very difficult to obtain wind hazard climate t…

State-of-the-Art Technology in the Construction of Sea-Crossing Fixed Links with a Bridge, Island, and Tunnel Combination Open

Yaojun Ge, Yong Yuan · 2019

Wind Load Characteristics and Action Mechanism on Internal and External Surfaces of Super-Large Cooling Towers under Wind-Rain Combined Effects Open

Shitang Ke, Wenlin Yu, Yaojun Ge · 2018

By focusing on wind-rain two-way coupling algorithm, simulation iterations of wind field and raindrops in the world highest cooling tower (210m) in northwest China were carried out using continuous phase and discrete phase models based on …

Sensitivity Analysis of Geometrical Parameters on the Aerodynamic Performance of Closed-Box Girder Bridges Open

Yongxin Yang, Rui Zhou, Yaojun Ge, Yanliang Du, Lihai Zhang · 2018

In this study, the influence of two critical geometrical parameters (i.e., angles of wind fairing, α; and lower inclined web, β) in the aerodynamic performance of closed-box girder bridges was systematically investigated through conducting…

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