Search
Now showing items 1-6 of 6
Strain Softening with Creep and Exponential Algorithm
Publisher: American Society of Civil Engineers
Abstract: A constitutive relation that can describe tensile strain softening with or without simultaneous creep and shrinkage is presented, and an efficient time‐step numerical integration algorithm, called the exponential algorithm, ...
Triple Power Law for Concrete Creep
Publisher: American Society of Civil Engineers
Abstract: An improved creep law for concrete at constant temperature and water content is proposed. It gives the creep rate as a product of power functions of the load duration, the age at loading and the current age of concrete. ...
Stress‐Induced Thermal and Shrinkage Strains in Concrete
Publisher: American Society of Civil Engineers
Abstract: A previous material model for the increase of creep of concrete caused by simultaneous drying is extended to describe the effect of both drying and wetting, as well as the increase of creep caused by temperature changes, ...
Rate‐Type Concrete Creep Law with Reduced Time
Publisher: American Society of Civil Engineers
Abstract: For creep analysis of large structural systems, the linear aging integral‐type creep law needs to be converted to a rate‐type form which consists of a system of first‐order linear differential equations with age‐dependent ...
Long-Term Deflection Control in Cantilever Prestressed Concrete Bridges. I: Control Method
Publisher: American Society of Civil Engineers
Abstract: Creep and shrinkage of concrete may lead to excess long-term deflection in concrete members, especially in prestressed concrete structures. The long-term vertical deflection of a segmentally constructed prestressed concrete ...
Long-Term Deflection Control in Cantilever Prestressed Concrete Bridges. II: Experimental Verification
Publisher: American Society of Civil Engineers
Abstract: This paper continues the preceding study on the long-term deflection control of prestressed concrete bridges. In this paper, an experimental study is first presented. The objectives of the experimental program are to check ...
CSV
RIS