Maria Q. Feng
Associate Professor, Civil & Environmental Engineering
The Henry Samueli School of Engineering
The Henry Samueli School of Engineering
PH.D., University of Tokyo
University of California, Irvine
Engineering Gateway E4139
Mail Code: 2175
Irvine, CA 92697
Engineering Gateway E4139
Mail Code: 2175
Irvine, CA 92697
Research Interests
Structural and Control Engineering, Windand Seismic Vibration of High-Rise Buildings, Damage Detection and Retrofit of Bridges, Robotics for Post-Earthquake Search and Rescue
Academic Distinctions
Appointments
Research Abstract
Engineering Dissipation Systems, Hybrid Control Systems, and Elastomeric Isolation Systems
Investigator: M.Q. Feng
Support: National Center for Earthquake Engineering Research
This goal of the researcher is to develop integrated protective systems for civil structures under earthquake and wind loads, which involve base isolation and energy dissipation through passive, semi-active (such as advanced variable dampers), active, and hybrid vibration control devices. In this effort, the systems are integrated optimally to achieve the following objectives: (1) control effectiveness even under nonlinear characteristics of structural and control behaviors, (2) cost-effectiveness, (3) energy-efficiency, (4) safety and reliability, and (5) maintainability. These five factors constitute an "integrated system." To achieve these purposes, extensive analytical and experimental studies are being performed. The implementation of these systems in bridges, buildings, and TV towers in U.S., Japan, and China also will be explored.
A Hybrid Sliding Isolation System with Controllable Friction Bearings
Investigator: M.Q. Feng
Support: National Science Foundation
Recently, a hybrid sliding base isolation system using computer-controllable friction bearings has been developed and proven to be much more effective in protecting sensitive and valuable equipment housed in buildings as well as the buildings themselves against earthquakes with a broad range of intensity and frequency in comparison with conventional passive base isolation systems. The current research intends to upgrade and implement this system in actual buildings by conducting a series of analytical and experimental investigations which permit new system design, three-dimensional control algorithm development, computer simulation analysis, and shaking table test. This system is planned to be installed in an existing office building in Japan.
Innovative Construction Robots
Investigator: M.Q. Feng
Support: Center for Infrastructure Research and Development
Robotic technologies have been introduced in the construction of civil structures to free workers from conventional "messy and hazardous work" and "heavy and repetitious labor," thus improving the working environment and efficiency. However, there still are definite needs for robots which can be used in construction sites where structural components, construction materials, and other items must be moved, but the usual cranes and other heavy duty equipment cannot be used for such reasons as space limitations, delicate requirements for placing items, and relatively small quantity of items to be moved at each time. To satisfy such needs, an innovative robot, called exoskeleton, is under research and development. Generally, an exoskeleton looks like a suit worn by a person, and provides protection from a dangerous environment and the capability of handling and transporting heavy objects far beyond the limit of a normal person. The most common expectation of the introduction of exoskeleton robots for construction industry is to supplement the shortage of labor and reduce manual labor.
Investigator: M.Q. Feng
Support: National Center for Earthquake Engineering Research
This goal of the researcher is to develop integrated protective systems for civil structures under earthquake and wind loads, which involve base isolation and energy dissipation through passive, semi-active (such as advanced variable dampers), active, and hybrid vibration control devices. In this effort, the systems are integrated optimally to achieve the following objectives: (1) control effectiveness even under nonlinear characteristics of structural and control behaviors, (2) cost-effectiveness, (3) energy-efficiency, (4) safety and reliability, and (5) maintainability. These five factors constitute an "integrated system." To achieve these purposes, extensive analytical and experimental studies are being performed. The implementation of these systems in bridges, buildings, and TV towers in U.S., Japan, and China also will be explored.
A Hybrid Sliding Isolation System with Controllable Friction Bearings
Investigator: M.Q. Feng
Support: National Science Foundation
Recently, a hybrid sliding base isolation system using computer-controllable friction bearings has been developed and proven to be much more effective in protecting sensitive and valuable equipment housed in buildings as well as the buildings themselves against earthquakes with a broad range of intensity and frequency in comparison with conventional passive base isolation systems. The current research intends to upgrade and implement this system in actual buildings by conducting a series of analytical and experimental investigations which permit new system design, three-dimensional control algorithm development, computer simulation analysis, and shaking table test. This system is planned to be installed in an existing office building in Japan.
Innovative Construction Robots
Investigator: M.Q. Feng
Support: Center for Infrastructure Research and Development
Robotic technologies have been introduced in the construction of civil structures to free workers from conventional "messy and hazardous work" and "heavy and repetitious labor," thus improving the working environment and efficiency. However, there still are definite needs for robots which can be used in construction sites where structural components, construction materials, and other items must be moved, but the usual cranes and other heavy duty equipment cannot be used for such reasons as space limitations, delicate requirements for placing items, and relatively small quantity of items to be moved at each time. To satisfy such needs, an innovative robot, called exoskeleton, is under research and development. Generally, an exoskeleton looks like a suit worn by a person, and provides protection from a dangerous environment and the capability of handling and transporting heavy objects far beyond the limit of a normal person. The most common expectation of the introduction of exoskeleton robots for construction industry is to supplement the shortage of labor and reduce manual labor.
Publications
Feng, M. Q. and Kim, J. M. (1998). "Identification of a Dynamic System Using Ambient Vibration Measurements", Accepted for publication in Journal of Applied Mechanics, ASME.
Feng, M. Q. (1998). "An Electro-Optical Accelerometer and Its Field Testing", Journal of Engineering Mechanics, ASCE, Vol. 124, No. 5.
Feng, M. Q. and Chai, W. (1997). "Design of a Mega-Sub Controlled Building System under Stochastic Wind Loads", Journal of Probabilistic Engineering Mechanics, Vol. 12, No. 3, pp. 149-162
Chai, W. and Feng, M. Q. (1997). "Vibration Control of Super Tall Buildings Subjected to Wind Loads", International Journal of Nonlinear Mechanics, Vol. 32, No. 4, pp. 657-668
Feng, M. Q. (1996). "An Experimental Study on an Electro-Optical Displacement Sensor", Nondestructive Testing and Evaluation, Vol. 13, pp. 5-14.
Feng, M. Q. and Mita, A. (1995). "Vibration Control of Tall Buildings Using Mega-Sub Structures", Journal of Engineering Mechanics, ASCE, Vol. 121, No. 10, pp. 1082-1088.
Feng, M. Q. (1994). "An Optical Fiber Sensor for Measurement of Dynamic Structural Response", Journal of Intelligent Material Systems and Structures, Vol. 5, No. 6, pp. 847-853
Link to this profile
https://faculty.uci.edu/profile/?facultyId=2336
https://faculty.uci.edu/profile/?facultyId=2336
Last updated
02/22/2002
02/22/2002