Author
Lieping Ye
Other affiliations: Chinese Ministry of Education
Bio: Lieping Ye is an academic researcher from Tsinghua University. The author has contributed to research in topics: Seismic analysis & Progressive collapse. The author has an hindex of 24, co-authored 68 publications receiving 2737 citations. Previous affiliations of Lieping Ye include Chinese Ministry of Education.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, a review of existing bond strength models and bond-slip models is presented, and the results of 253 pull tests on simple FRP-to-concrete bonded joints, leading to the conclusion that a more accurate model is required.
993 citations
TL;DR: In this paper, a column consisting of steel, concrete and fiber-reinforced polymer (FRP) is presented and assessed through experimental study, which can be regarded as a concrete-filled square steel tube (CFST) with a FRP-confined concrete core.
250 citations
TL;DR: In this article, a study of the mechanical behavior of 3D printed structures using cementitious powder is presented, in which compressive and flexural tests are conducted to determine the mechanical properties and failure characteristics of such materials.
239 citations
TL;DR: In this paper, a meso-scale finite element (FE) model implemented with the MSC program is presented for the simulation of interfacial debonding failures in a pull test, where very small nearly square elements (0.25-0.5 mm in size) are used with the fixed angle crack model (FACM) to capture the development and propagation of cracks in the concrete layer adjacent to the dhesive layer.
219 citations
TL;DR: In this article, a finite element method based numerical model encompassing fiber-beam element model, multilayer shell model, and elemental deactivation technique is proposed to predict the collapse process of high-rise buildings subjected to extreme earthquake.
Abstract: SUMMARY
Collapse resistance of high-rise buildings has become a research focus because of the frequent occurrence of strong earthquakes and terrorist attacks in recent years. Research development has demonstrated that numerical simulation is becoming one of the most powerful tools for collapse analysis in addition to the conventional laboratory model tests and post-earthquake investigations. In this paper, a finite element method based numerical model encompassing fiber-beam element model, multilayer shell model, and elemental deactivation technique is proposed to predict the collapse process of high-rise buildings subjected to extreme earthquake. The potential collapse processes are simulated for a simple 10-story RC frame and two existing RC high-rise buildings of 18-story and 20-story frame–core tube systems. The influences of different failure criteria used are discussed in some detail. The analysis results indicate that the proposed numerical model is capable of simulating the collapse process of existing high-rise buildings by identifying potentially weak components of the structure that may induce collapse. The study outcome will be beneficial to aid further development of optimal design philosophy. Copyright © 2012 John Wiley & Sons, Ltd.
192 citations
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TL;DR: In this paper, a review of existing bond strength models and bond-slip models is presented, and the results of 253 pull tests on simple FRP-to-concrete bonded joints, leading to the conclusion that a more accurate model is required.
993 citations
TL;DR: In this paper, the use of FRP (Fibre Reinforced Polymer) to strengthen steel structures has become an attractive option which may produce confident retrofitting of existing structures.
879 citations
TL;DR: In this article, the authors provide a critical review of existing research in this area, identifies gaps of knowledge, and outlines directions for further research, including the optimization of construction details, models for the bond behaviour between NSM fiber-reinforced polymer (FRP) and concrete, reliable design methods for flexural and shear strengthening, and the maximization of the advantages of this technique.
Abstract: Near-surface mounted (NSM) fiber-reinforced polymer (FRP) reinforcement is one of the latest and most promising strengthening techniques for reinforced concrete (RC) structures. Research on this topic started only a few years ago but has by now attracted worldwide attention. Issues raised by the use of NSM FRP reinforcement include the optimization of construction details, models for the bond behaviour between NSM FRP and concrete, reliable design methods for flexural and shear strengthening, and the maximization of the advantages of this technique. This paper provides a critical review of existing research in this area, identifies gaps of knowledge, and outlines directions for further research.
725 citations
TL;DR: In this article, a closed-form analytical solution is presented which is capable of predicting the entire debonding propagation process, in which the realistic bi-linear local bond slip law is employed.
673 citations
TL;DR: In this paper, a critical review and interpretation of existing research on fiber-reinforced polymer (FRP)-strengthened steel structures is provided. And the paper concludes with comments on future research needs.
454 citations