Title:
Time-dependent behavior of pin-bearing bolted connections in pultruded fiber reinforced polymer composites under normal and elevated temperatures

dc.contributor.advisor Scott, David W.
dc.contributor.author Anwar, Javaid
dc.contributor.committeeMember Zureick, Abdul-Hamid
dc.contributor.committeeMember Muhanna, Rafi L.
dc.contributor.committeeMember Gentry, Russell T.
dc.contributor.committeeMember Stewart, Lauren
dc.contributor.department Civil and Environmental Engineering
dc.date.accessioned 2017-08-17T18:59:38Z
dc.date.available 2017-08-17T18:59:38Z
dc.date.created 2017-08
dc.date.issued 2017-07-12
dc.date.submitted August 2017
dc.date.updated 2017-08-17T18:59:38Z
dc.description.abstract Fiber-reinforced polymer (FRP) members can offer significant advantages such as high strength-to-weight and stiffness-to-weight ratios, resistance to corrosion, non-conductivity, design flexibility, and ease of installation. The successful assembly of structural systems made of FRP materials requires connections between elements; these connections must be considered when assessing the overall behavior of the structure. A large number of previous studies have focused on the influence of various connection parameters on the short-term response of bolted connections in pultruded FRP composites; however, few have examined their long-term behavior. This research study examines the short- and long-term response of an E-glass/polyester pultruded FRP material subjected to single pin-bearing loads. The investigation involves experiments on single-bolt tension connections under a double-lap shear configuration at normal and elevated service temperatures. Elevated temperature tests are conducted at 43.3, and 60°C (110, and 140°F). The effect of specific connection parameters including diameter-to-thickness ratios, bolt-hole clearances, and bolt tightening torques on the short-term bearing strength of a connection is evaluated. Based on the short-term test results, time-dependent pin-bearing tests are conducted at various load levels and temperature exposures. Sustained load tests are carried out on material coupons for time durations of up to 1,000 hours. Based on the experimental results, and similar to design procedures developed for wood and for pultruded FRP structures, a semi-empirical predictive model is proposed for the time-dependent behavior of the pultruded FRP materials subjected to single pin-bearing loads. Finally, an equation is proposed to estimate the time-dependent pin-bearing strength of a connection that considers the effect of temperature and connection conditions.
dc.description.degree Ph.D.
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/58676
dc.language.iso en_US
dc.publisher Georgia Institute of Technology
dc.subject Fiber-reinforced polymer (FRP) composites
dc.subject Pin-bearing
dc.subject Creep
dc.subject Connections
dc.subject Pultrusion
dc.title Time-dependent behavior of pin-bearing bolted connections in pultruded fiber reinforced polymer composites under normal and elevated temperatures
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Scott, David W.
local.contributor.corporatename School of Civil and Environmental Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication 58fcfcfe-cc5d-452b-9016-ff0bf3434aa2
relation.isOrgUnitOfPublication 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
thesis.degree.level Doctoral
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