摘要
水工混凝土结构的真实应力状态是很复杂的,施工中与设计计算的应力状态有相当大的差别,引起差别的原因包括:施工过程、温度应力、结构型式、地基变形及材料与其力学特性等,从发生裂缝的机理分析入手,采用仿真温控计算,结合工程实践,提出了裂缝防治措施,对防止裂缝具有明显的效果,提高了水工混凝土结构的坚固与耐久性。
The souls of concrete are firmness and endurance. Cracks of concrete affect construction quality. The true stress state of hydraulic concrete structure is very complex. There exists much more difference between stress state in construction and design. The reasons to difference include construction process ,temperature stress, structure type ,foundation deformation, materials and its mechanical property etc. Based on the crack mechanism, crack prophylactico-therapeutic measures are put forward by using emulated temperature control calculation and combining with engineering practice. These measures have obvious effects to crack prevention and enhance the firmness and endurance hydraulic concrete structure.
出处
《水科学与工程技术》
2008年第3期1-6,共6页
Water Sciences and Engineering Technology
关键词
钢筋混凝土
结构
裂缝
温度应力
约束
干缩变形
仿真计算
reinforced concrete
structure
crack
temperature stress
restrain
shrinkage deformation
Simulate suppuration
