Bailey Panels are Comprising upper & lower chord member, montant and raker welded. One end of the upper & lower chord member is female, and the other end is male, both with pin hole. While splicing the trusses, insert the male end of one truss into the female end of the other, aiming the pin hole and inserting the pin. Holes’ function of truss: chord member bolt hole is used for splicing dual deck or reinforced bridge, by inserting the truss bolt or chord member bolt into the chord member bolt hole, so as to connect the dual deck truss or the truss and reinforced chord member; brace hole is used for installing brace, while the truss is used as girder, use the two middle holes; while used as bridge feet, use the two end holes, so as to strengthen the connection of two rows of trusses; wind bracing hole is used for connecting the sway brace; brace hole on end montant is used for installing brace, raker and yoke plate; hole of transom bolt & nut is used for installing transom bolt & nut. There are four transom pads, with bolt on it for limiting the transom position.