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。

Preface The cracking of massive concrete structures due to thermal stresses is a problem which had puzzled engineers for a long time. ¡°No dam without crack¡± is the actual state of concrete dams in the world. The theory of thermal stress and temperature control of mass concrete is established by the writer in this book under the direc-tion of which the problem of cracking of massive concrete structures had been solved, and several concrete dams without crack have been successfully constructed in China in recent years which indicates that the history of ¡°No dam without crack¡± has ended. Mass concrete is important for the economical construction of a country. For example, more than 1...