Modularized transverse bracing and assembling method

The invention relates to a modularized transverse connection and an assembling method, the transverse connection comprises standard modules and a middle module, the two sides of the middle module are connected with the standard modules through first node plates, each standard module is provided with n1 segments in the length direction, n1 is an odd number, the segments are cubic frames, and n1 is an odd number; each section comprises two oppositely-arranged first truss pieces and two oppositely-arranged second truss pieces, the length of each first truss piece and the length of each second truss piece are both L1, the adjacent sections are connected through first gusset plates, the two sections at the end of the transverse linkage are used for being connected with stand columns through the first gusset plates, the length of the standard module is n1 * L2, and the length of the standard module is n1 * L2. L1 is the sum of L1 and the thickness of the first node plate, L2 is the sum of L1 and the thickness of th