PROBLEM TO BE SOLVED: To provide a frame connection/fixation tool which allows a user to perform the positioning and the connection/fixation of a pipe frame by one-touch operation, and to provide a multipurpose pipe house which can be used in various ways according to the purpose of use.SOLUTION: A frame connection/fixation tool is the connection/fixation tool of a frame which is attached to a crossing part of a pipe frame 22, and includes an overlapping frame connection/fixation tool 11 and a penetrating frame connection/fixation tool. The overlapping frame connection/fixation tool is pushed and fitted into the crossing part of the pipe frame 22 from one direction, and a protruding part 15 is fitted into and connected/fixed to a positioning through-hole 23 made in the pipe frame 22 to form a pipe house unit, which is covered with a roof sheet from above the pipe house unit to form a multipurpose pipe house.SELECTED DRAWING: Figure 1
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