The present invention provides a laced composite system comprising, a sandwiched filler material between upper and lower cover plates (1), the said cover plates being provided with the plurality of perforations (2) along the length, plurality of reinforcing members (3) being passed through the said perforations to connect the said cover plates, plurality of transverse/ cross rods (4) being attached at the outer side of the said cover plates to hold the said reinforcing members in order to enhance the ductility and rotational capacity of the said laced composite system to resist the suddenly applied dynamic load. This method of fabrication avoids welding in total. This system possesses high quality due to part fabrication in factory, rapid installation and provision for integration of multiple units. Strength of the infilled material is effectively utilized.