A computerized online engineering tool system for specifying the various components of a holdown system that assemble a run comprising a tie rod extending inside a frame wall structure from the foundation up through the walls to the top floor, and bearing members and tension devices securing the tie rod to the wall. The propagation member having a first end and a second end and including a plurality of gas exit holes. Subsequently, the request from the terminal includes the load information, so that the congestion control system controls the regulation of the request from the terminal based on the load information included in the request.