IS 12966 : Part 2 : 1990 Code of practice for galleries and other openings in dams: Part 2 Structural design

1 Scope

1.1 This standard lays down method of determining reinforcementaround openings in solid gravity dams constructed either inconcrete or in masonry, and are applicable to openings which can beanalysed as two dimensional problems.

1.2 The design of openings which are large in comparison withthe size of the dam is not considered in this standard. If d is themaximum cross-sectional dimension of the gallery of the opening, itis considered large when either of the following is complied with :

a) d ≥ 6 m, or

b) concrete or masonry cover any where around it is less than d.

2 References

IS 456 :1978Code of practice for plain and reinforcedconcrete

IS 457 :1957Code of practice for general construction of plain and reinforced concretefor dams and othermassive structures

IS 4410 : Part 8 :1968 Glossary of terms relating to river valleyprojects: Part 8 Dams and dam sections

IS 6512 :1984Criteria for design of solid gravity dams

IS 8605 :1977Code of practice for construction of masonry indams