Abstract: The subject invention pertains to a completely new pile splicing system called Grouted Sleeve Coupler Splice (GSCS) for Precast Concrete Piles (PCPs) as an innovative alternative splicing method for connecting driven PCP segments. The provided splicing method is applicable for preplanned situations and provides a durable, labor-friendly, rapid, and economical foundation construction method. In this system, to improve the structural performance, the entire sleeve coupler and a portion of the dowels are partially debonded in short lengths from surrounding concrete. This connection system is novel in conjunction with PCPs and for connecting separate precast pile segments. The provided system offers a completely unique and new method of connecting and splicing PCP segments and other prismatic prefabricated piles.

Abstract: Connection systems and methods for connecting cross-frames to girders in skewed structure. A Tee section can be welded to a girder, and cross-frame members can be welded to the flange of the Tee section. The flange of the Tee section can have main cut-outs to separate the web of the Tee section from the flange of the girder. The flange of the Tee section can optionally have edge cut-outs for providing airflow, such as in humid regions with high potential for corrosion.

Abstract: Fiber reinforced plastic (FRP) sheet or jacket systems and methods are provided as an alternative splicing method to connect driven pile segments or other structural members. These systems are applicable to both unforeseen and preplanned splicing situations and can be used in the unforeseen condition when other splice systems may fail to provide the required capacity.

Abstract: Near-Surface Mounting Bar (NSMB) Pile Splice systems and methods are provided as an alternative splicing method to connect driven precast concrete pile segments. These systems are applicable to both unforeseen and preplanned splicing needs and provide excellent advantage especially for the unforeseen condition when other splice systems fail to provide the required capacity. These systems offer completely unique and new methods of connecting and splicing precast prestressed concrete pile segments and all other prismatic precast concrete elements.

Abstract: Systems and methods are provided to detect and determine the location and relative significance of joint damage in structures including bridges, and particularly including accelerated bridge construction (ABC) bridges, based on measured changes in bridge dynamic or static response parameters and model updating methods. These systems and methods may use a detailed finite element model to calculate the sensitivity of joint damages in the structure response parameters for a particular loading configuration and the change of state in the structure obtained through instrumentation and response monitoring of the structure compared to a prior condition of the structure in order to identify potential damages.