A5100772005- Structural Engineering and Vibration Analysis
- Seismic and Structural Analysis of Tall Buildings
- Seismic Performance and Analysis
- Structural Load-Bearing Analysis
- Structural Behavior of Reinforced Concrete
- Wind and Air Flow Studies
- Civil and Geotechnical Engineering Research
- BIM and Construction Integration
- Structural Analysis and Optimization
- Geotechnical Engineering and Soil Stabilization
- Grouting, Rheology, and Soil Mechanics
- Topology Optimization in Engineering
- Vibration Control and Rheological Fluids
- Geotechnical Engineering and Underground Structures
- Innovations in Concrete and Construction Materials
- Geotechnical Engineering and Soil Mechanics
- Fire effects on concrete materials
- Concrete Properties and Behavior
- Engineering Structural Analysis Methods
- Mechanical stress and fatigue analysis
- 3D Surveying and Cultural Heritage
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Advanced Surface Polishing Techniques
- Building Energy and Comfort Optimization
Tongji University
2011-2024
Shanghai Tongji Urban Planning and Design Institute
2011-2024
Daqing Oilfield General Hospital
2024
Daqing Oilfield of CNPC
2024
Guizhou University
2024
Lanzhou Jiaotong University
2023
Hebei University of Technology
2006-2022
Shenyang Jianzhu University
2010-2022
China University of Mining and Technology
2021
Tianjin University of Technology
2017-2020
TC4 titanium alloy and 5083 aluminum with different groove shapes were joined by laser-MIG hybrid welding–brazing using ER4043 filler wire. The effects of shape on the weld formation, intermetallic compounds tensile property Ti/Al butt joints investigated. welds without obvious defects could be obtained grooves I-shape V-shape Ti side, while quality Al side both sides slightly worse. interfacial (IMCs) brazing interface homogeneous in sides, which had similar thickness composed TiAl3. Unlike...
Since the GaN epitaxial film grown on r-plane sapphire substrates is semi-polar, strong built-in electric field inside thin cannot be produced, and luminous efficiency of significantly improved. However, breaking energy Al-O bond higher than Al-Al c-plane. So it's difficult to get high removal rate for CMP. The influence different chelating agents CMP was studied in order improve processing accuracy. only about 0.5 μm/h without adding such new agent slurry. But increased rapidly 1 when 0.2...
This paper first critically reviews a seismological model and then three-segment curve (in log-log space) to the Q-f relationship is proposed overcome potential biased estimation in long-period range by "coda wave" method. The optimal curve-fitting process performed determine for Hong Kong region. calibrated factors are incorporated with stochastic simulation procedure generate synthetic ground motions, which validated through comparison seismic records. impact of motions on response...
In this study, the rotating welding process of Chinese fir (Keteleeriafortunei) in Guizhou, China, was systematically analyzed. The effects conditions, including dowel-to-guide hole diameter ratio, time, depth, base surface, angle, and dowel type, on performance welded were explored. Moreover, physical chemical changes oftheChinese interface during revealed by Fourier-Transform Infrared Spectroscopy (FT-IR), X-ray Photoelectron (XPS), Diffraction (XRD), Scanning Electron Microscopy (SEM)....
Stiffened Deep Cement Mixed (SDCM) pile technique has provided a new approach for treating soft. soil. The main focus of this paper is the bearing behavior and capacity prediction single SDCM pile. Static load tests data 67 piles collected from six different districts in China are analyzed paper. capacity, load-settlement curve failure modes studied. According to mechanism pile, predict Sectioning Summarizing method, proposed. To calculate one should be divided into two segments: upper...
<p>Earthquake actions for tall buildings are significant due to great building height and huge mass, thus numerous controlled by earthquake actions. Inadequate lateral stiffness may cause excessive damage non-structural components, story drift limitations under specified in Chinese Code. code also specifies minimum base shear limits ensure the force resisting capacity. A sensitivity analysis method constraints is derived this study based on response spectrum method. The optimal...
The recycled aggregate is dealt with in three ways, the first way to keep intact; second wrap cement slurry of Water-cement ratio 0.55 for 30 minutes, and then place it at room temperature 7 days; third immerse water 24 hours. Three kinds different separately used mixing concrete. strength slump concrete coarse contents are tested. Experiments show that produced by using immersed selecting a suitable mix has higher slump，which can be industrialized. And then, 40% steel-reinforced beams,...
<p>Applied widely to increase the lateral stiffness of supper tall buildings, outriggers can effectively reduce vibration period as well structural deflection under wind loads and earthquake actions. Based on feature mega frame-core wall structures, this paper discussed optimal design outrigger trusses. The location number are optimized by adopting sensitivity vectors algorithm (SVA) method proposed authors. Using principle virtual work Rayleigh method, relationships between member...
<p> With the increase of height and flexibility modern super tall buildings, structural natural vibration period become longer longer. The long components dominant factor in design buildings. Due to lack sufficient ground motion records with rich components, current researches on were not fully conducted. To avoid serious damages caused by excessive responses, buildings is commonly requested be below certain limit Asian building development practices. key factors which may cause...
<p>Earthquake actions for tall buildings are significant, thus numerous controlled by earthquake actions. Inadequate lateral stiffness may cause excessive damage to non-structural components, story drift limitations under specified in Chinese Code. Response spectrum analysis is one of the most common methods seismic structures. A sensitivity method carried out based on response methodunder constraint.The sensitivities constraint each mode related design variables first determined from...
In order to investigate self-excited vibration mechanism of wheel-rail lateral contact system, a two DOF elasticity position wheelset model is established which considers the dry friction; investigated from energy point view. It shows that: bifurcation diagram this system has supercritical Hopf bifurcation. The derives part traction energy; creep rate in act as feedback system. stability depends mainly on total removed and imported into
<p> Due to its excellent lateral stiffness and space flexibility, the frame-core wall structures are widely applied in super high-rise buildings. Energy dissipation technology can be tall buildings reduce seismic responses of main realize optimal structural design for structure. As an effective energy device, viscous damper generate damping force by viscosity effects liquid. velocity-dependent nature, dampers dissipate under different earthquake levels, even frequent with small...
<p> Mega steel reinforced concrete columns with complex embedded steels become widely applied in the structural system of contemporary super-tall buildings. The moisture distribution has significant influence on deformation performance mega columns. However, effects differential are actually not considered current design practice SRC been analyzed using numerical simulation author’s previous studies. In order to verify analysis results, a monitoring program Shanghai Tower was obtain...
In this study, a C‐ALS underground cavity scanner was used to detect the shapes of mining goafs. addition, GTS software adopted establish three‐dimensional geological model based on status stopes, data, and mechanical parameters each rock mass analyze roof areas regard morphology study area, thin plate theory obtained field sampling formula established for thicknesses reserved protective layers in curved gobs obtained. The thickness then successfully verified. detection results showed that...