Method for connecting vertical seams between adjacent load-bearing wallboards in floors

The invention discloses a method for connecting vertical seams between adjacent load-bearing wallboards in floors by the aid of added vertical reinforcing steel bars and post-poured concrete. The method includes firstly, laying the vertical reinforcing steel bars 2; secondly, welding and connecting the vertical reinforcing steel bars with one another by connecting reinforcing steel bars 3; thirdly, pouring the concrete 4. The method have the advantages that the prefabricated wallboards connected with one another by the aid of the method are firm in connection and good in safety; the vertical reinforcing steel bars are arranged in post-poured sections, and reinforcement ratios of the vertical reinforcing steel bars cannot be lower than reinforcement ratios of vertical distribution bars of walls; the prefabricated wallboards on two sides of each post-poured section can be connected with one another in extended connecting reinforcing steel bar welding and lapping or extended reinforcing steel bar, anchor ring and vertical joint bar combination modes.