Sealing structure for the bottom of a beam space between precast panels

A sealing structure for sealing the bottom of a beam space between precast panels, comprising:

• a first precast panel and a second precast panel formed with a first group of thru apertures and a second group of thru apertures, respectively, and substantially aligned to each other along a single plane and spaced from each other by a space, each of the first precast panel and the second precast panel defining an inner edge adjacent to the space;
• a soft pad abutting the space for sealing a bottom of the space, said soft pad extending from the inner edge of the first precast panel to the inner edge of the second precast panel;
• a plate abutting the soft pad and extending from the inner edge of the first precast panel to the inner edge of the second precast panel;
• a fastening device securing a first side of the plate and an opposite second side of the plate to the first precast panel and the second precast panel, respectively, so as to assist the soft pad in the sealing of the bottom of the space by clamping the soft pad between the plate and the first and the second precast panels, the fastening device having an end(s) extending through at least a number of thru apertures of the first group of thru apertures and the second group of thru apertures and secured to a first surface of the first precast panel and a second surface of the second precast panel, which are opposite to the soft pad, wherein the fastening device does not contact the soft pad.