Shun Chai

Southeast University

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Tong Guo

Southeast University

Jun Yang

Northwest Institute of Nuclear Technology

Zheheng Chen

Jiangsu University of Science and Technology

Zhiwei Yang

Beijing University of Posts and Telecommunications

Aiqun Li

Beijing University of Civil Engineering and Architecture

A.L. Zhang

Guangdong Medical College

H.X. Wang

Beijing University of Technology

Xue‐Chun Liu

Anhui Medical University

Zhongxiang Liu

Southeast University

L. Wu

Beijing Anzhen Hospital

Cooperative Institutions

Beijing University of Technology

Southeast University

Beijing University of Civil Engineering and Architecture

Beijing Advanced Sciences and Innovation Center

University of Science and Technology Beijing

Ministry of Education of the People's Republic of China

Xi'an Shiyou University

Chengdu University of Information Technology

Xi'an Jiaotong University

Xinjiang Agricultural University

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Experimental and numerical investigation on seismic behaviours of beam-column joints of precast prestressed concrete frame under given corrosion levels

Structures (2020)

Jun Yang Tong Guo Shun Chai

Precast concrete

Ductility (Earth science)

Prestressed concrete

10.1016/j.istruc.2020.07.007

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Citations (47)

Nonlinear Analysis of DIANA Modeling Cases

Springer eBooks (2020)

Shun Chai

Python

Response analysis

Graphical user interface

10.1007/978-981-15-2945-0_3

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Citations (0)

Probabilistic Fatigue Life Prediction of Bridge Cables Based on Multiscaling and Mesoscopic Fracture Mechanics

Applied Sciences (2016)

Zhongxiang Liu Tong Guo Shun Chai

Fatigue fracture of bridge stay-cables is usually a multiscale process as the crack grows from micro-scale to macro-scale. Such a process, however, is highly uncertain. In order to make a rational prediction of the residual life of bridge cables, a probabilistic fatigue approach is proposed, based on a comprehensive vehicle load model, finite element analysis and multiscaling and mesoscopic fracture mechanics. Uncertainties in both material properties and external loads are considered. The proposed method is demonstrated through the fatigue life prediction of cables of the Runyang Cable-Stayed Bridge in China, and it is found that cables along the bridge spans may have significantly different fatigue lives, and due to the variability, some of them may have shorter lives than those as expected from the design.

Mesoscopic physics

Bridge (graph theory)

10.3390/app6040099

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Citations (18)

Proposals for Further Improvements

Springer eBooks (2020)

Shun Chai

10.1007/978-981-15-2945-0_6

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Citations (0)

Flexural Behavior of Precast Concrete Segmental Box-Girders with Dry Joints

Advances in Civil Engineering (2020)

Shun Chai Tong Guo Zheheng Chen Jun Yang

Precast concrete segmental (PCS) box-girders are widely used in bridge construction, while studies on flexural behaviors of PSC box-girders with dry joints are insufficient. Six large-scale PCS box-girders with dry joints were tested to failure under two-point loading in this study. Strain increments, tendon forces, deflections at mid-span, and cracks were recorded during the tests. Multiple factors were investigated with regards to their influence on flexural performance of girders. It is found that most specimens failed due to the excessive force in tendons, while the specimen with external tendons failed due to concrete compressive crushing. Larger shear span ratio resulted in greater increase in tendon force and concrete strain during loading and, accordingly, the lowest ultimate flexural capacity. Lower concrete strength resulted in larger increase in concrete strain and tendon force during loading and relatively smaller deflection at failure. For the specimen with four segments, a significant increase in tendon force and smaller deflections at failure was observed as compared with specimen 1, though the failure load was similar. Numerical simulation is further conducted, where it is found that the area of prestressed tendon and the number of joints have a significant influence on ultimate flexural bearing capacity and deflection; besides, deflection control standard of PCS girders should be stricter than that of the integral cast girder. The corbel joints, in general, show better ultimate performance than the castle-shaped joints.

Precast concrete

Prestressed concrete

Ultimate load

Shear force

10.1155/2020/8895180

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Citations (5)

Finite Element Analysis for Civil Engineering with DIANA Software

Springer eBooks (2020)

Shun Chai

10.1007/978-981-15-2945-0

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