抄録
In the previous paper (part-1), proposed equations to calculate simply and accurately the crack width of partially prestressed concrete flexural members are induced and examined showing the good agreement with experimental data. For the availability of practical use of partially prestressed concrete members for which crack control is to be made in its structural design, the crack width of designed section should be calculated more easily and quickly. This paper describes on the process to the calculation charts of crack width from equations given in the previous paper (part-1) and on the method how to use it. One useful example of method to determine easily the stress of reicforcing steel which is need in the calculation of crack width is also shown herein. The calculation charts are divided into three parts-the first one is on the average crack spacing (l_<av>), the second one is on the average change in strain in reinforcing steel (⊿ε_<s・av>) and the third one is on the product of l_<av> and ⊿ε_<s・av>. With the value of the stress of reinforcing steel, we can determine the crack width of designed section very quickly by those charts with almost the same accuracy compared to the value by proposed equations.
