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Title

Large-Scale Testing of a Precast Bent for Accelerated Bridge Construction in Seismic Zones

Organization

Department: Civil & Environmental

University: Idaho State University College: Science & Engineering Department: Civil & Environmental 15

Document Attachments

Resource	Length	Width	Thickness
Paper	0	0	0

Specimen Elements

City

Pocatello

Coverage

Unknown to Unknown

Creator

Jared Cantrell

Publisher

Idaho State University

Type

Thesis

Is Complete

No

Date Published

6/8/2021

Archive

digital

City: Pocatello

Degree

Master

Document Attachments

Abstracts

Accelerated Bridge Construction (ABC) has gained popularity around the United States in recent decades. ABC offers many advantages over traditional cast-in-place(CIP), such as reduced traffic disruption and rapid erection, among numerous others. Despite these advantages, application of ABC in seismic regions is still a challenge due to difficulties associated with developing equivalent response from precast connections as that of CIPduring seismic loading. In this research, a new precast pier system is proposed to emulate the traditional CIPseismic design (i.e. formation of plastic hinges during earthquakes). The precast elements are connected using fully encased concrete-filled steel tubes. Large-scale experimental testing of equivalent precast and CIP bents is carried out to investigate the seismic performance of the proposed pier system and to compare it against the traditional cast-in-place construction. Experimental results exhibit good performance of the precast connection when subjected to quasi-static cyclic loading. The performance of the precast connection during experimental testing of piers has outperformed the CIP benchmark specimen in ductility and strength. Key Words: Accelerated Bridge Construction; ABC; precast concrete; large-scale testing; seismic; bridges; concrete-filled steel tube; cast-in-place bent; precast bent