A5100406227- Structural Health Monitoring Techniques
- Asphalt Pavement Performance Evaluation
- Seismic Performance and Analysis
- Infrastructure Maintenance and Monitoring
- Innovative concrete reinforcement materials
- Concrete Corrosion and Durability
- Structural Response to Dynamic Loads
- Vibration Control and Rheological Fluids
- Seismic and Structural Analysis of Tall Buildings
- Wind and Air Flow Studies
- Structural Engineering and Vibration Analysis
- Fire effects on concrete materials
- Aerodynamics and Fluid Dynamics Research
- Dam Engineering and Safety
- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Grouting, Rheology, and Soil Mechanics
- Hydraulic flow and structures
- Concrete and Cement Materials Research
- Structural Behavior of Reinforced Concrete
- Tunneling and Rock Mechanics
- Structural Integrity and Reliability Analysis
- Ultrasonics and Acoustic Wave Propagation
- Masonry and Concrete Structural Analysis
- Polymer Nanocomposites and Properties
University of Shanghai for Science and Technology
2024
Henan Province Water Conservancy Survey and Design Research
2024
China University of Mining and Technology
2022-2023
Ministry of Transport
2023
Guangxi University
2021
Berkshire Hathaway (United States)
2018-2021
Baker Hughes (United States)
2020
University of California, Berkeley
2015-2018
ORCID
2018
Harbin Institute of Technology
2018
Summary The replaceable coupling beam (RCB) is an innovative structural component developed to increase the seismic resilience of reinforced concrete (RC) shear wall structures. In this study, two 1/5‐scale 5‐story 3‐dimensional RC structures—one with conventional beams and other RCBs—were designed, constructed, tested on a shaking table. failure pattern, dynamic properties, responses, including acceleration, displacement, story force, strain 2 structures are compared under earthquake...
Abstract Asphalt exhibits self‐healing ability, though at a lower rate. In this study, urea formaldehyde–epoxy resin (UFE) microcapsules were prepared using polyurea formaldehyde as the wall and epoxy core material, which in turn applied to fabricate UFE–styrene butadiene styrene modified asphalt (abbreviated UBS asphalt). Scanning electron microscopy transmission analyses revealed well‐coated have globular geometry with obvious folds wall. Ductility test showed 90% higher healing rate of...
Damage in a structure alters its dynamic characteristics. Significant research has been conducted damage detection and structural health monitoring using dynamics-based techniques. But simultaneously determining the presence, severity, location of existing methods can still prove challenging. In this study, new practical method called Local Factor (LDF) is presented, which capable at same time. By including characteristics intact local LDF method, influence nonlinearity, imperfections,...
Resistance of asphalt mix to low-temperature cracking and rutting at high temperature is very important ensure the service performance pavement under seasonal changes in loading. However, it challenging balance improvement such resistance by using additives, e.g., anti-rutting agent (ARA). This study focuses on improving flexibility incorporating crumb rubber (CR) ARA. The properties prepared modified were evaluated laboratory performing wheel tracking, three-point bending, indirect tensile,...
Summary The Tall Building Initiative project of Pacific Earthquake Engineering Research Center has been expanded to investigate the seismic performance and possible retrofit existing tall buildings. A candidate 35‐story steel building with representative details from early 1970s was analyzed following several guidelines, which revealed a wide range potential inadequacies. Thus, two‐level approach examined that focused on achieving collapse prevention limit state under major basic safety...
The feasibility and cost-effectiveness of various retrofit techniques to improve the seismic performance an existing 35-story steel building are examined. Three types supplemental energy dissipation devices used in conjunction with basic measures achieve collapse prevention objective current standards. Devices considered include fluid viscous dampers (FVDs), wall dampers, buckling restrained braces. placement was kept same all three cases, considering overall architectural, programmatic,...
The study focused on the influence of various engineering factors strength rigid airport pavement. Based different test schemes, we established indoor and outdoor tests, compared results, quantitatively analyzed impact mechanical damage, maintenance conditions, construction technology splitting We further fitted correction coefficients core samples with height–diameter ratios. Dempster-Shafer (D-S) evidence theory gray correlation analysis were used to analyze between influencing pavement...
In the current recycling process of reclaimed asphalt pavement (RAP), due to serious damage aggregate gradation and large amount aged still wrapped around surface treated aggregate, low rate poor performance recycled mixture are major problems RAP. view shortcomings RAP technology, it is urgent research new treatment methods design specialized asphalt-stripping equipment solve existing problems. this paper, based on theoretical analysis EDEM discrete element simulation, a principle prototype...
Abstract This article uses ultra‐high performance concrete (UHPC) to repair damaged and analyzes the durability of repaired concrete. Among them, three erosion solutions with a mass concentration 2.8% NaCl + 0.29% Na 2 SO 4 , 5% NaCl, 10% were designed soak specimens for 1 3 months. Taking SWC test group as an example, when block undergoes 30 dry wet cycles depth is 20 mm, difference in chloride ion under different diffusion dimensions not significant. After 90 cycles, at inside...
Abstract Herein, tannic acid‐terephthalyl chloride (TA‐TPC) was prepared and applied for the preparation of TA‐TPC‐Rubber to composite styrene butadiene (SBS)‐modified asphalt (SBSMA). Fourier transform infrared spectroscopy scanning electron microscopy indicated that TA‐TPC successfully attached surface rubber powder (RP), which improved bonding between RP SBSMA. Fluorescence analysis showed formed a complete crosslinking network structure in SBSMA, while thermogravimetry proved higher...
The Pacific Earthquake Engineering Research (PEER) Center has expanded its Tall Building Initiative project to include the seismic performance of existing tall buildings. A candidate 35-story steel building with representative details from that era was analyzed. Pushover analysis and nonlinear dynamic response history results for as-built are discussed in a companion paper. In this paper, potential retrofit approach using viscous dampers is presented. criteria focused on reducing story...
The seismic performance of new tall buildings located in regions high hazard has been recently investigated by Pacific Earthquake Engineering Research (PEER) Center under its Tall Buildings Initiative (TBI) program. Building now expanded to assess the existing buildings. being considered are 20 stories or more height, and constructed on West Coast U.S. between about 1960 1990. During this period, several hundred were California, but earthquake-resistant design procedures had not yet fully...
The aerodynamic forces of the system were obtained based on a 3D model, and dynamic analysis model train‐bridge coupling was established to compare vibration responses train bridge with without wind barrier fully consider shielding effect train‐induced system. results show that combined direction operating are at an angle. Although shape leading trailing cars is same, their load values not same due influence wind. Because perforations, vortex between train’s windward surface varies in...