로그인

Creep in concrete, the gradual deformation under prolonged stress, significantly impacts the integrity of structures. For reinforced concrete beams, it can be a vital design consideration, as it increases deflection, sometimes necessitating additional design measures. In columns, especially slender ones under eccentric loads, creep can cause buckling, compromising their stability. However, creep can be beneficial in indeterminate structures by mitigating stresses that arise from shrinkage, temperature fluctuations, or support movements, thus reducing potential cracking.

In massive concrete structures like dams, creep can result in cracking due to constraints during temperature cycles from hydration heat and subsequent cooling. High-rise buildings may experience differential creep, leading to partition movements and cracks. Additionally, exterior cladding fixed to columns that undergo creep can also develop cracks. For longevity and safety, provisions for accommodating potential movement and stress changes due to creep are essential in concrete structure design and maintenance.

Prestressed concrete elements, crucial in bridges, suffer from prestress loss over time due to creep, a problem once so significant it prompted the introduction of high-tensile steel to counter it.

장에서 10:

article

Now Playing

10.5 : Effects of Creep

Elasticity, Creep, and Shrinkage in Concrete

61 Views

article

10.1 : Elasticity in Concrete

Elasticity, Creep, and Shrinkage in Concrete

56 Views

article

10.2 : Dynamic Modulus of Elasticity of Concrete

Elasticity, Creep, and Shrinkage in Concrete

173 Views

article

10.3 : Creep in Concrete

Elasticity, Creep, and Shrinkage in Concrete

74 Views

article

10.4 : Factors Affecting Creep

Elasticity, Creep, and Shrinkage in Concrete

83 Views

article

10.6 : Shrinkage in Concrete

Elasticity, Creep, and Shrinkage in Concrete

46 Views

article

10.7 : Drying Shrinkage

Elasticity, Creep, and Shrinkage in Concrete

46 Views

article

10.8 : Carbonation Shrinkage

Elasticity, Creep, and Shrinkage in Concrete

88 Views

article

10.9 : Types of Non-structural Cracks in Concrete

Elasticity, Creep, and Shrinkage in Concrete

88 Views

article

10.10 : Mass Concreting

Elasticity, Creep, and Shrinkage in Concrete

36 Views

article

10.11 : Hot Weather Concreting

Elasticity, Creep, and Shrinkage in Concrete

42 Views

article

10.12 : Cold Weather Concreting

Elasticity, Creep, and Shrinkage in Concrete

34 Views

JoVE Logo

개인 정보 보호

이용 약관

정책

연구

교육

JoVE 소개

Copyright © 2025 MyJoVE Corporation. 판권 소유