ACI SP-246:2007 PDF Download

ACI SP-246:2007 is a collection of papers presented at the ACI 2007 Fall Convention that focuses on the effects of shrinkage and creep of concrete. The papers included in the standard are organized into four groups: design, construction, and behavior of bridge structures; effect of concrete shrinkage and creep on the design and construction of tall buildings; deflection and cracking serviceability of slabs, beams, and walls; and other problems and basic questions.

The standard covers a wide range of topics related to shrinkage and creep, including stress distribution of prestressed concrete structures, numerical analysis of viscoelastic behavior of concrete structures, the removal of temporary supports and creep effects in bridge construction, and the modeling and case study of creep and shrinkage in prebent composite beams for railway bridges. It also includes papers on the design optimization of continuous railway bridges, designing for creep and shrinkage effects in high-rise concrete buildings, and the impact of creep and shrinkage on the design of supertall buildings.

Furthermore, the standard addresses the effect of early age loading on deflection and shrinkage restraint cracking of slabs, the effect of shrinkage on short-term deflection of reinforced concrete beams and slabs, and the proposal of simple design equations for evaluating the flexural serviceability performance of reinforced high and low shrinkage HSC beams. It also includes papers on the influence of passive reinforcement on creep and shrinkage of concrete, investigation of cracking of mass concrete members induced by restrained contraction, and the development of a drying shrinkage updated model for hardened Chilean concretes.

Lastly, the standard covers topics such as the shrinkage effect on shear strength of reinforced high strength concrete beams, the application of Bernoulli's hypothesis to differential shrinkage problems, and the importance of time in understanding concrete behavior.