Civil Engineering and Architecture 10(7): 3264-3289, 2022 http://www.hrpub.org DOI: 10.13189/cea.2022.100736 Seismic Pushover Analysis of Global Emulative Response of Precast Reinforced Concrete Frames with Dextra Groutec Couplers Charmaine Kay M. Guanlao 1,* , Gilford B. Estores 2 1 School of Civil, Environmental and Geological Engineering, Master of Science in Civil Engineering, Mapua University, Manila, 1002, Philippines 2 School of Civil, Environmental and Geological Engineering, Faculty of Civil Engineering, Mapua University, Manila, 1002, Philippines Received June 14, 2022; Revised August 3, 2022; Accepted September 19, 2022 Cite This Paper in the Following Citation Styles (a): [1] Charmaine Kay M. Guanlao, Gilford B. Estores , "Seismic Pushover Analysis of Global Emulative Response of Precast Reinforced Concrete Frames with Dextra Groutec Couplers," Civil Engineering and Architecture, Vol. 10, No. 7, pp. 3264 - 3289, 2022. DOI: 10.13189/cea.2022.100736. (b): Charmaine Kay M. Guanlao, Gilford B. Estores (2022). Seismic Pushover Analysis of Global Emulative Response of Precast Reinforced Concrete Frames with Dextra Groutec Couplers. Civil Engineering and Architecture, 10(7), 3264 - 3289. DOI: 10.13189/cea.2022.100736. Copyright©2022 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License Abstract The effects of Dextra Groutec couplers on the global performance of precast reinforced concrete frames are investigated by comparing the performance criteria of conventional RC structures to that of the said structures such that precast elements are connected end-to-end using these couplers. As couplers provide continuity of the reinforcement, precast elements that are connected using this mechanism can perform as a unit, and the entire structural system can be considered emulative as long as the structural performance is comparable to that of the conventionally designed cast-in-place. Dextra couplers inherently have lower strain compared to reinforcing rebar, affecting the global performance of a structure if placed within critical regions such as near the beam-column connection. The present study is conducted therefore to perform a comparative study to determine the effect of these couplers on the emulative behavior of the precast frames to the cast-in-place frames by considering the following factors: Coupler location, Dextra Groutec Coupler size and length, and the story height of the frame. Static pushover analysis of 30 models is carried out using the finite element software, Seismostruct. Pushover curves are compared based on the three criteria such as global ultimate displacement, displacement ductility, and energy dissipation. The results revealed that the Dextra Groutec Couplers reduce the capacity of the precast frame according to the three performance criteria. Hybrid configuration, where the bottom part is CIP and the upper part is precast connected by couplers is found to be the most viable option to obtain an emulative response. The longer and bigger Dextra Groutec coupler, S28 also manifested more inferior performance compared to S25. Lastly, the height of the structure is not a strong factor in the emulative response except for the hybrid and coupler placed at D distance away from the joint face configurations. Keywords Couplers, Precast, Pushover, Emulative, Seismostruct 1. Introduction Precast concrete is a type of concrete that is prepared off-site, usually in a controlled environment. The casting and curing of concrete are done on a plant and are transported to a site for erection. Precast concrete structures have long been utilized in the global construction industry for several decades because of the numerous advantages they offer. Reduction of on-site construction duration and manpower implies that project