大体积混凝土温度应力与温度控制

Preface

About the Author

1 Introduction

2 Conduction of Heat in Mass Concrete， Boundary Conditions， and Methods of Solution

3 Temperature Field in the Operation Period of a Massive Concrete Structure

4 Placing Temperature and Temperature Rise of Concrete Lift due to Hydration Heat of Cement

5 Natural Cooling of Mass Concrete

6 Stress-Strain Relation and Analysis of Viscoelastic Stress of Mass Concrete

7 Thermal Stresses in Fixed Slab or Free Slab

8 Thermal Stresses in Concrete Beams on Elastic Foundation

9 Finite Element Method for Computing Temperature Field

10 Finite Element Method for Computing the Viscoelastic Thermal Stresses of Massive Concrete Structures

11 Stresses due to Change of Air Temperature and Superficial Thermal Insulation

12 Thermal Stresses in Massive Concrete Blocks

13 Thermal Stresses in Concrete Gravity Dams

14 Thermal Stresses in Concrete Arch Dams

15 Thermal Stresses in Docks， Locks， and Sluices

16 Simulation Analysis， Dynamic Temperature Control， Numerical Monitoring， and Model Test of Thermal Stresses in Massive Concrete Structures

17 Pipe Cooling of Mass Concrete

18 Precooling and Surface Cooling of Mass Concrete

19 Construction of Dam by MgO Concrete

20 Construction of Mass Concrete in Winter

21 Temperature Control of Concrete Dam in Cold Region

22 Allowable Temperature Difference， Cooling Capacity， Inspection and Treatment of Cracks， and Administration of Temperature Control

23 Key Principles for Temperature Control of Mass Concrete

Appendix： Unit Conversion

References

Index

大体积混凝土结构，体积巨大，通常不配置钢筋，由混凝土本身承受拉应力。拉应力主要由温度变化引起，因此控制温度应力是大体积混凝土结构设计和施工的一个重要问题。以混凝土坝为例，体积巨大，分层施工，建造周期长达数年，受环境温度变化和施工过程影响，坝体温度应力变化十分复杂，过去无法计算，实际上是“无坝不裂”。本书介绍了作者建立的混凝土温度应力和温度控制的完整理论体系，包括重力坝、拱坝、水闸、船坞、隧洞、浇筑块、地基梁等各种大体积混凝土结构温度场和应力场的精细计算方法，控制温度防止裂缝的技术措施和设计与施工准则。在该理论指引下，我国已在世界上首次建成数座无裂缝混凝土坝，证明这一套理论是正确而切实可行的。在坝工技术上取得了比较重要的成就，曾先后获得国家自然科学奖、国家科技进步奖和国际大坝会议荣誉奖。