Search Results - "Dai, Lizhao"

Concrete cracking prediction under combined prestress and strand corrosion by Wang, Lei, Dai, Lizhao, Bian, Hanbing, Ma, Yafei, Zhang, Jianren

“…This study investigates strand corrosion-induced concrete cracking under various prestress experimentally and analytically. Experimental data on the critical…”
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Monitoring of Corrosion-Induced Degradation in Prestressed Concrete Structure Using Embedded Piezoceramic-Based Transducers by Jiang, Tianyong, Kong, Qingzhao, Peng, Zhong, Wang, Lei, Dai, Lizhao, Feng, Qian, Huo, Linsheng, Song, Gangbing

“…Corrosion-induced cracking in prestressed concrete elements has been one of the most dominant factors that can cause the deterioration of concrete structures…”
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Secondary transfer length and residual prestress of fractured strand in post-tensioned concrete beams by Dai, Lizhao, Xu, Wengang, Wang, Lei, Yi, Shanchang, Chen, Wen

“…An experimental study is performed on five post-tensioned concrete beams to explore the effects of different fracture positions on secondary transfer length…”
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Concrete Cracking Prediction Including the Filling Proportion of Strand Corrosion Products by Wang, Lei, Dai, Lizhao, Zhang, Xuhui, Zhang, Jianren

“…The filling of strand corrosion products during concrete crack propagation is investigated experimentally in the present paper. The effects of stirrups on the…”
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Shear Behavior of Corroded Post-Tensioned Prestressed Concrete Beams with Full/Insufficient Grouting by Wang, Lei, Hu, Zhuo, Yi, Ju, Dai, Lizhao, Ma, Yafei, Zhang, Xuhui

“…This paper experimentally studied the shear behavior of corroded post-tensioned prestressed concrete beams with full grouting. The effects of insufficient…”
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Meso-scale modeling of concrete cracking induced by 3D corrosion expansion of helical strands by Dai, Lizhao, Long, Dixuan, Wang, Lei

“…•A three-dimensional corrosion expansion model of helical strand is proposed.•A meso-scale numerical model is built to simulate the corrosion-induced…”
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Prestress Loss Diagnostics in Pretensioned Concrete Structures with Corrosive Cracking by Dai, Lizhao, Bian, Hanbing, Wang, Lei, Potier-Ferry, Michel, Zhang, Jianren

“…AbstractConcrete cracking induced by strand corrosion can degrade bond strength and lead to prestress loss. A novel model is proposed to predict…”
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3D meso-scale modeling of bond behavior between helical strand and concrete by Dai, Lizhao, Tao, Yihao, Yuan, Ping, Wang, Lei

“…Excellent interfacial bonding is the foundation for the strand and concrete working together. Helical structure of strand causes its rotation during the…”
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Secondary anchorage and residual prestressing force in locally corroded PT beams after strand fracture by Dai, Lizhao, Chen, Yang, Wang, Lei, Ma, Yafei

“…•The secondary anchorage of corrosion-induced fractured strand is explored.•The residual prestressing force generated by secondary anchorage is conformed.•An…”
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Multi-stage damage identification method for PC structures based on machine learning driven by piezoelectric singular feature by Dai, Lizhao, Ou, Lingzhi, Yi, Shanchang, Wang, Lei

“…•A multi-stage damage identification method for PC structures is proposed.•The singular value vector in the piezoelectric signal is extracted as the damage…”
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Structural performance degradation of cable-stayed bridges subjected to cable damage: model test and theoretical prediction by Ma, Yafei, Peng, Anyin, Wang, Lei, Dai, Lizhao, Zhang, Jianren

“…The performance of concrete cable-stayed bridge deteriorates under the influences of adverse environments and loads. This paper performs a segment model test…”
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Prediction of corrosion-induced retraction slip of prestressing strand in pre-tensioned concrete beams by Dai, Lizhao, Chen, Peng, Luo, Xin, Wang, Lei, Zhang, Jianren

“…An experimental study is conducted on ten pre-tensioned concrete (PC) beams with different local corrosion degrees and positions to investigate the effect of…”
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A global model for corrosion-induced cracking in prestressed concrete structures by Dai, Lizhao, Wang, Lei, Zhang, Jianren, Zhang, Xuhui

“…A global model is proposed in this study to predict prestressed concrete (PC) cracking induced by strand corrosion. The proposed model considers the three…”
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Failure analysis of corroded PC beams under flexural load considering bond degradation by Wang, Lei, Zhang, Xuhui, Zhang, Jianren, Dai, Lizhao, Liu, Yongming

“…An analysis model is proposed in the present study to predict the failure of corroded prestressed concrete (PC) beams under flexural load. The corrosion…”
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Experimental study on fatigue behavior of UHPC joint in negative moment region of π-shaped steel–concrete composite beams by Jiang, Tianyong, Zhao, Jie, Wang, Lei, Jiang, Mai, Dai, Lizhao

“…To improve the crack resistance of concrete bridge decks in the negative moment region of π-shaped steel–concrete composite beam, a novel ultra-high…”
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A detection method integrating modal deflection curvature difference and natural frequency for structural stiffness degradation by Wang, Lei, Chen, Rui, Dai, Lizhao, Huang, Ke, Zhang, Jiabin, Tang, Cui

“…•A detection method is proposed to realize the structural damage localization and quantification.•Numerical studies are performed to demonstrate the proposed…”
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Transfer length prediction in pre-tensioned concrete beams under corrosive cracking by Dai, Lizhao, Chen, Hong, Wang, Lei, Ma, Yafei, Zhang, Jianren

“…An analytical model is proposed to predict the transfer length in pre-tensioned concrete (PC) beams under corrosive cracking. The coupling effects of Hoyer…”
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Flexural Capacity Prediction of Corroded Prestressed Concrete Beams Incorporating Bond Degradation by Dai, Lizhao, Wang, Lei, Bian, Hanbing, Zhang, Jianren, Zhang, Xuhui, Ma, Yafei

“…AbstractStrand corrosion can cause the flexural capacity deterioration of prestressed concrete (PC) beams. An analytical model incorporating the effects of…”
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Prefabricated prestressed variable truss to strengthen RC beams based on the concept of geometrically unstable system by Wang, Lei, Wu, Binghui, Dai, Lizhao, Zhang, Xuhui

“…A new prefabricated prestressed variable truss (PPVT) system based on the concept of geometrically unstable system is proposed for the strengthening of…”
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Sensor fault detection, localization, and reconstruction for online structural identification by Huang, Ke, Yuen, Ka‐Veng, Wang, Lei, Jiang, Tianyong, Dai, Lizhao

“…Summary In this study, a novel sensor fault detection, localization, and reconstruction approach is proposed for online structural identification. The proposed…”
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