Dissertation > Excellent graduate degree dissertation topics show

Temperature Control and Crack Prevention of Mass Concrete for Foundation of High-rise Building

Author: ZhouYunChuan
Tutor: BaiLiang
School: Kunming University of Science and Technology
Course: Engineering Mechanics
Keywords: mass concrete temperature field temperature stress temperature control simulation crack prevention
CLC: TU755
Type: Master's thesis
Year: 2009
Downloads: 123
Quote: 0
Read: Download Dissertation

Abstract


The cracking phenomenon of mass concrete of foundation slab for high-rise building is becoming the emphasis of all the engineers, crack prevention of concrete is very important in guaranteeing the quality of the engineering. Crack prevention of mass concrete is system engineering, it include many links, one of the most important program is to control the temperature of the concrete, in the mean time, we should pay attention to other programs, such as the choice of primary materials, concrete design, job practice and so on, there are many places needs to be studied.(1)The basic analyze principle and normal solving methods of and the temperature field and the temperature stress are analyzed and sum up from theory. A state of massive concrete three-dimensional unsteady temperature field and temperature stress finite element analysis of the basic calculation steps is highlighted.(2)The author use MIDAS simulate the temperature field of a building foundation of a high-rise building of Kunming, combine the actual situation with engineering. The temperature and temperature stress variation with time under temperature control measures for changing the parameters are calculated and analyzed. The author makes a number of views about the use of temperature indicators, temperature control concept, finite element program for simulation analysis as a complementary means of temperature-controlled management.①the appropriate temperature control indicators for specific works are decided by strengthening the experiment.②the key to control the temperature of the mass concrete is the control of both the temperature and the temperature stress.③finite element program for analysis and forecasting capabilities and engineering practice combine.(3)Based on the current developments in concrete technology, the author think that except the temperature control, there probably other factors that result the crack of mass concrete, such as the mistaken multi-component concrete design, biased structural design, incomplete measures for construction technology and construction management. The author summaries some correct points, successful experience and measures about materials, design, construction, management of crack prevention in mass concrete, the purpose is to explore the beneficial results to serve the engineering practice. Besides there is supplementary formulation about how to handle cracks of mass concrete, these measures and the conclusion can be applied in engineering practice.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study of Interaction between Epoxy Molecules and Carbon Fiber Surface with Molecular Simulation,TB332
  3. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  4. Study on Springback of High-Strength Steel Stamping,TG386
  5. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  6. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  7. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  8. Study on Contact Fatigue Life Based on Grease Variation with Temperature,TH117.22
  9. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  10. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  11. Research on Orbital Control Method for Space Rendezvous and Docking,V526
  12. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  13. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  14. Single Neuron PID Control for Electro-Hydraulic Servo Unit of Ship Rudder,U666.152
  15. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  16. Analysis and Study of Abutment Stability in Concrete High Arch Dam by Three-Dimensional Nonlinear Finite Element Method,TV642.4
  17. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  18. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  19. Numerical Simulation of Biomass Direct Reburning,TK16
  20. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  21. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11

CLC: > Industrial Technology > Building Science > Construction > The project and the type of work > Concrete and reinforced concrete works
© 2012 www.DissertationTopic.Net  Mobile