putlog

putlog

1. The calculation of strength and deflection of ledger is based on the design of every three spans within two strides, and the main rail is over the putlog.

大横杆按照三跨连续梁进行强度和挠度计算，大横杆在小横杆的上面。

2. The strength and deflection of putlog as easy supporting girder, and the ledger is over and supported by putlog.

小横杆按照简支梁进行强度和挠度计算，大横杆在小横杆的上面。

3. putlog hole

架眼

4. putlog (put-lock)

脚手架小横杆