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Xin Ruan
Tongji University
18Publications
6H-index
87Citations
Publications 18
Newest
Published on May 4, 2019in Structure and Infrastructure Engineering 2.43
Junyong Zhou2
Estimated H-index: 2
(GU: Guangzhou University),
Xin Ruan6
Estimated H-index: 6
(Tongji University)
+ 1 AuthorsColin Christopher Caprani12
Estimated H-index: 12
(Monash University)
AbstractTraffic micro-simulation is the newly developed approach for loading calculation of long span bridges. The approach is quite precise, but computationally expensive to consider the full extent of traffic loading scenarios during a bridge lifetime. To address this shortfall, an efficient multi-scale traffic modelling approach is proposed. The proposed approach uses micro- and macro-simulation with different load model varieties (LMVs), or fidelities (levels of detail) of traffic loading in...
Published on May 1, 2018in Structural Safety 3.52
Junyong Zhou2
Estimated H-index: 2
(Tongji University),
Xuefei Shi2
Estimated H-index: 2
(Tongji University)
+ 1 AuthorsXin Ruan6
Estimated H-index: 6
(Tongji University)
Abstract A novel framework for multi-lane factors (MLFs) for bridge traffic loading is proposed in this work. A general equation of MLF, consisting of a combination coefficient, a lane correction coefficient, and a share factor is established. The calculation methodology for lifetime MLF uses bivariate extreme-value theory based on coincident extreme lane loading events. Example application of the framework to a site using Weigh-In-Motion (WIM) data is demonstrated, in which traffic simulations ...
Published on Apr 3, 2017in Structure and Infrastructure Engineering 2.43
Xin Ruan6
Estimated H-index: 6
(Tongji University),
Junyong Zhou2
Estimated H-index: 2
(Tongji University)
+ 1 AuthorsColin Christopher Caprani12
Estimated H-index: 12
(Monash University, Clayton campus)
AbstractThis paper proposes a site-specific traffic load model for long-span multi-pylon cable-stayed bridge. Structural effects are primarily investigated based on influence lines, which are identified as either global effect (GE) or partial effect (PE) depending on the effective influenced region. GEs are further categorised as sensitive effect (SE), insensitive effect (ISE) or less sensitive effect (LSE), considering sensitivity to unbalanced traffic loading. Three on-bridge traffic states ar...
Published on Apr 3, 2017in Structure and Infrastructure Engineering 2.43
Airong Chen1
Estimated H-index: 1
(Tongji University),
Dan M. Frangopol52
Estimated H-index: 52
(Lehigh University),
Xin Ruan6
Estimated H-index: 6
(Tongji University)
Published on Oct 1, 2016in Journal of Bridge Engineering 1.84
Xin Ruan6
Estimated H-index: 6
(Tongji University),
Junyong Zhou2
Estimated H-index: 2
(Tongji University),
Colin Christopher Caprani12
Estimated H-index: 12
AbstractThe antisliding safety of the middle saddle is a key issue for the design of three-pylon suspension bridges. Vehicle load is the main adverse effect, especially unsymmetrical vehicle load. A general mechanical model on the saddle sliding behavior is reviewed and proposed, and then characteristics of load responses of the main cable are investigated to explore a simplified live load computational method. Based on the deterministic approach from codes and a reliability-based approach, the ...
Published on Aug 1, 2015in Risk Analysis 2.56
Xin Ruan6
Estimated H-index: 6
(Tongji University),
Zhiyi Yin1
Estimated H-index: 1
(Tongji University),
Dan M. Frangopol52
Estimated H-index: 52
(Lehigh University)
Recent studies indicate that absence of the consideration of risk attitudes of decisionmakers in the risk matrix establishment process has become a major limitation. In order to evaluate risk in a more comprehensive manner, an approach to establish risk matrices that integrates risk attitudes based on utility theory is proposed. There are three main steps within this approach: (1) describing risk attitudes of decisionmakers by utility functions, (2) bridging the gap between utility functions and...
Published on Jul 1, 2015in Engineering Structures 3.08
Zichao Pan1
Estimated H-index: 1
(TU Delft: Delft University of Technology),
Airong Chen3
Estimated H-index: 3
(Tongji University),
Xin Ruan6
Estimated H-index: 6
(Tongji University)
Abstract This paper mainly studied the spatial variability of the chloride caused by the inhomogeneous mesoscopic structure of the concrete in a numerical simulation approach. To conduct the research, a method to generate the random aggregate structure (RAS) based on elliptical and polygonal aggregates was firstly proposed. Secondly, the governing equation of the chloride diffusion process was numerically solved by the finite element method. Several important issues in this method, e.g, how to e...
Published on Feb 25, 2015in Computers and Concrete 1.89
Airong Chen3
Estimated H-index: 3
,
Zichao Pan2
Estimated H-index: 2
,
Xin Ruan6
Estimated H-index: 6
Published on Feb 1, 2015in Structure and Infrastructure Engineering 2.43
Xin Ruan6
Estimated H-index: 6
(Tongji University),
Yu Zhang1
Estimated H-index: 1
(Tongji University)
Concrete components of existing bridges often have complex and time-dependent stresses due to external load and internal degradation. The reliable information of the stress state plays an important role in performance assessment, life cycle prediction and strengthening and maintenance strategy. Some key bridge components generally carry predominant uniaxial loads, such as girders, towers and pillars, which make it meaningful to focus on the uniaxial in-situ stresses. This article presents a non-...
Published on Jan 1, 2015
Junyong Zhou2
Estimated H-index: 2
(Tongji University),
Xin Ruan6
Estimated H-index: 6
(Tongji University),
Colin Christopher Caprani12
Estimated H-index: 12
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