Open AccessDevelopment of steel structure connections for seismic resistance using composite steel bolts/rubber
Author(s) -
Suhaib J. Ali,
Amer M. Ibrahim,
Sarmad Shafeeq
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/737/1/012014
Subject(s) - natural rubber , structural engineering , composite number , materials science , beam (structure) , composite material , corrosion , engineering
This study scoped to develop the connections of steel structures using composite steel bolts/rubber to connect beam-to columns joints of steel structures instead of conventional steel bolts. Four steel plane portal frames were tested under horizontal cyclic quasi-static load. The study included testing different diameters of composite steel bolts/rubber: 0.5 d bolt , 1.0 d bolt , and 1.5 d bolt , that are used to connect the beam with columns and these results were compared with traditional beam-to columns connections without rubber. The rubberized connections are working at high structural standards through reducing the effect of the stresses resulting from the earthquakes by absorbing damping process. They protect the bolts that are used in joints of steel structures from corrosion due to friction, and they are economically feasible because the rubber that was used for covering the bolts is taken from old tires. The experimental tests proved that using the rubber material around the bolts as much as one - half times bolt diameter raises the specimen’s resistance by 166.66%, increases the displacement by 163.30%, and reduces the strain by 48.13%, as compared with bolts that do not have a rubber (steel bolts only). All these results will be discussed in detail in this report.