masonry development length equations

Where can I find information on the recent history and near future of the ACI development length equations for masonry reinforcement?

The Florida Building Code references ACI 530-05 equation 3-15 for strength design but for allowable stress design they have replaced ACI 530-05 equation 2-9 with ld=0.002*db*fs.

Thanks.

 

Christopher Banbury, PE

President

 

Ark Engineering, Inc.

PO Box 10129, Brooksville, FL 34603

22 North Broad ST, Brooksville, FL 34601

Phone: (352) 754-2424

Fax: (352) 754-2412

www.arkengineering.net