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Mechanical Bar Splices For Accelerated Construction Of Bridge Columns, Puskar Kumar Dahal
Mechanical Bar Splices For Accelerated Construction Of Bridge Columns, Puskar Kumar Dahal
Electronic Theses and Dissertations
Mechanical bar splicing is an alternative method of connecting reinforcing bars in concrete structures compared to conventional lap splicing mainly to reduce bar congestion in joints. Recently, mechanical bar splices, which are also referred to as bar couplers, have been used to connect precast members to accelerate construction of concrete bridges and buildings. Current codes prohibit the use of couplers in the plastic hinge regions of bridge columns in high seismic zones. This may be because of a lack of systematic test data on the coupler performance, limited experimental studies on mechanically spliced bridge columns, and an engineering precaution. The …
Effects Of Mechanical Bar Splices On Seismic Performance Of Reinforced Concrete Buildings, Abdullah Al Hashib
Effects Of Mechanical Bar Splices On Seismic Performance Of Reinforced Concrete Buildings, Abdullah Al Hashib
Electronic Theses and Dissertations
Mechanical bar splices, which are commonly referred to as couplers, are currently used in reinforced concrete structures to directly connect steel bars in lieu of conventional lap splicing. With proper detailing, couplers can be utilized to connect precast beams and columns to accelerate the construction. However, the experimental and analytical studies regarding their effect on the performance of RC moment-resisting frames (MRFs) are scarce. Current ACI 318 restricts the use of couplers in plastic hinge regions of special moment-resisting frames (SMRFs). Nevertheless, they can be incorporated at any location of the intermediate and ordinary MRFs. The seismic performance of RC …