Abstract: A splice tube assembly and corresponding system for connecting multiple fiber-reinforced polymer rebars include a polymeric tube that is externally covered by a reinforcing layer to control radial expansion of grout within the polymeric tube and of the polymeric tube itself, and the polymeric tube may be internally provided with locking structures for mechanically interlocking with the grout, ensuring that the splice tube assembly functions as a unit for transferring loads from a first rebar, extending from a first end of the polymeric tube, to a second rebar, extending from a second end of the polymeric tube.

Abstract: A splice tube assembly and corresponding system for connecting multiple fiber-reinforced polymer rebars include a polymeric tube that is externally covered by a reinforcing layer to control radial expansion of grout within the polymeric tube and of the polymeric tube itself, and the polymeric tube may be internally provided with locking structures for mechanically interlocking with the grout, ensuring that the splice tube assembly functions as a unit for transferring loads from a first rebar, extending from a first end of the polymeric tube, to a second rebar, extending from a second end of the polymeric tube.

Abstract: A splice assembly and corresponding system for connecting multiple fiber-reinforced polymer rebars include a polymeric tube that is externally covered by a reinforcing layer to control radial expansion of grout within the polymeric tube and of the polymeric tube itself, and the polymeric tube may be internally provided with locking structures for mechanically interlocking with the grout, ensuring that the splice assembly functions as a unit for transferring loads from a first rebar, extending from a first end of the polymeric tube, to a second rebar, extending from a second end of the polymeric tube.

Abstract: A method for assessing the impact of a disrupting event on a structure, such as building, vis-à-vis its multiple interrelated systems as well as the occupants of the structure is disclosed. The method, which may be embodied in computer readable code stored on a computer readable storage medium and executable by a computer or similar workstation, can be applied to structures that are in the design phase, construction phase, as well as the post-construction phase. The invention allows the impact of a disrupting event, including the response of building occupants to the disrupting event, to be simulated and assessed from infancy and throughout the life of the structure, and used to assess various design alternatives when allocating resources.

Abstract: A composite structural reinforcing strip is affixed to a structure to be reinforced (such as a bridge span, foundation pillar, or similar structure) by the use of several fasteners which extend through the strip and into the structure. The reinforcing strip preferably includes elongated continuous parallel fibers which have lengths extending along the length of the strip, and nondirectional fibers distributed transversely across the strip, with a polymer matrix affixing the parallel and nondirectional fibers. The strip may be placed on the structure to be reinforced, and may be attached thereon by actuating a common powder-actuated fastener gun to send fasteners through the strip and into the structure.

Abstract: A reinforced paperboard tube is constructed by depositing a polymeric matrix with embedded fibers on a paperboard tube by use of pultrusion processes, resulting in a composite tube with a paperboard inner surface and a composite polymer/fiber outer surface. The resulting composite tube exhibits desired strength and dynamic properties greater than those provided by either the original paperboard tube or the added polymer/fiber shell taken alone. The composite tube is particularly useful in the manufacture of paper or other sheet or strand materials which are rolled onto tubes during manufacturing, since the composite tube allows a low-diameter tube upon which such materials can be wound at very high speeds without the dynamic instability that would otherwise result if plain paperboard or polymer tubes of the same diameter and length were used.

Abstract: A composite structural reinforcing strip is affixed to a structure to be reinforced (such as a bridge span, foundation pillar, or similar structure) by the use of several fasteners which extend through the strip and into the structure. The reinforcing strip preferably includes elongated continuous parallel fibers which have lengths extending along the length of the strip, and nondirectional fibers distributed transversely across the strip, with a polymer matrix affixing the parallel and nondirectional fibers. The strip may be placed on the structure to be reinforced, and may be attached thereon by actuating a common powder-actuated fastener gun to send fasteners through the strip and into the structure.