Introduction
1 Concrete Bridge Cracks Causes
1.1 Causes of the cracks
1.2 Analysis of cracks
1.2.1Analysis of temperature stress
1.2.2Temperature control and measures to prevent cracks
2 Effets of Temperatures
2.1 Current Models for the Behavior at Elevated Temperatures
2.2 Effets of Temperature stress thinkness
2.2.1 Temperature control
2.2.2 the variation of temperature of mass concrete
2.2.3 The Variation of the Thermal Stress in Mass Concrete
2.2.4 Temperature Control and Crack Prevention of Mass Concrete
3 Therminal Stress
3.1 Causes of Thermal stress the crack
3.1.1 The thermal stress of concrete can be approximately represented as
3.2 kinds of thermal stress
3.2.1 Thermal stress of massive concrete structure
3.2.2 Shrinkage cracks caused Analysis
3.2.3 Steel corrosion cracks cause
4 Construction Caused Cracks
4.1 Cracks of raw materials
4.2 bridge crack control and technology measures
4.2.1 Design plan
4.2.2 Bridge deck concrete measures crack
4.2.3 Supports measures cracking
5 Calculation and Application of Mass Concrete Construction Temperature
5.1 Calculation analysis
5.2 Analysis and calculation of concrete temperature
5.2.1 Temperature of various materials
5.2.2 Formula for calculating the temperature of large concrete Maximum adiabatic temperature rise
6 Materials
6.1 Choise of materials
6.2 Site construction operation
6.2.1 Concrete temperature control–
6.2.2 Quality of construction technology
6.2.3 PRESTRESS LOSSES
6.2.4 Prestressed concrete continuous beam bridge
7 Conclusion
致谢
参考文献