| 摘要 |
The present invention provides a joint structure of iron framework capable of enhancing workability and strength. The joint structure of iron framework 1 is a joint structure of iron framework for connecting a hollow rectangular steel beam 4 to a hollow rectangular steel column 2 via a coupling member 3 . The coupling member 3 includes: a rectangular cylinder 31 fitted to an outer periphery of the hollow rectangular steel column 4 and firmly attached to the hollow rectangular steel column 4 ; a U-shaped receiving member 4 provided to a side surface of the rectangular cylinder 31 for connecting the hollow rectangular steel beam 4 , the U-shaped receiving member 32 having a bottom portion 32 b protruded from the side surface of the rectangular cylinder 31 , having a U-shaped opening portion 32 located to face upward, having a U-shaped end surface firmly attached to the side surface of the rectangular cylinder 31 ; and a lid 33 firmly attached to the U-shaped receiving member 32 in a state of covering the upper surface of the hollow rectangular steel beam 4 mounted in the U-shaped receiving member 32.
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