Which Lapping Is Best And How?

[dr. rifat]

Hi,
Please anyone can tell me which column lapping is best and how?

Thanks in advanced.

RIFAT

 

[hokie66]

You will likely get different opinions on this, but the most popular way is to offset bend the bars. I prefer bringing the bars from below through straight, and offsetting the bars above the splice. The inclined part must be not steeper than 1:6, and extra ties should be provided to prevent the horizontal component from pushing the bars out.

If the columns below and above are different sizes, straight lapping bars are used.