Wraparound length

If the wraparound technique wUl be used for construction, calculate the wrapping length Lfi... 

If the wraparound technique is used, the wrapping length Lr is obtained in a manner similar to that shown previously except that distance Z should be measured to the middle of the layer and is reduced compared with what illustrated in Fig. 15.21. In fact, it is reasonably well established that the stress in reinforcement elements is maximal near the failure plane and falls off sharply to either side. As an approximation, 0.5 (Th will be used, which results in the following equation (Eq. [15.58]) ... 

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