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| 1 | Influence of earthquake ground motion incoherency on multi-support structures显示文摘A linear response history analysis method is used to determine the influence of three factors: geometric incoherency, wave-passage, and local site characteristics on the response of multi-support structures subjected to differential ground motions. A one-span frame and a reduced model of a 24-span bridge, located in Las Vegas, Nevada are studied, in which the influence of each of the three factors and their combinations are analyzed. It is revealed that the incoherency of earthquake ground motion can have a dramatic influence on structural response by modifying the dynamics response to uniform excitation and inducing pseudo-static response, which does not exist in structures subjected to uniform excitation. The total response when all three sources of ground motion incoherency are included is generally larger than that of uniform excitation. | 杨庆山 M.Saiid Saiidi 王航 Ahmad Itani | 2002 | Earthquake Engineering and Engineering Vibration2002，1，2： | 9 |
| 2 | Investigation of effect of near-fault motions on substandard bridge structures显示文摘The objective of this study was to investigate the effects of near-fault ground motions on substandard bridge columns and piers. To accomplish these goals, several large scale reinforced concrete models were constructed and tested on a shake table using near- and far-field ground motion records. Because the input earthquakes for the test models had different characteristics, three different measures were used to evaluate the effect of the input earthquake. These measures are peak shake table acceleration, spectral acceleration at the fundamental period of the test specimens, and the specimen drift ratios. For each measure, force-displacement relationships, strains, curvatures, drift ratios, and visual damage were evaluated. Results showed that regardless of the measure of input or response, the near-fault record generally led to larger strains, curvatures, and drift ratios. Furthermore, residual displacements were small compared to those for columns meeting current seismic code requirements. | Austin Brown M. Saiid Saiidi | 2011 | Earthquake Engineering and Engineering Vibration2011，10，1： | 7 |
| 3 | Computational studies on the seismic response of the State Route 99 bridge in Seattle with SMA/ECC plastic hinges显示文摘This paper reports a computational study on the seismic response of a three-span highway bridge system incorporating conventional and novel substructure details for improved seismic performance.The bridge has three continuous spans supported by two single-column piers and integral abutments founded on drilled shafts.It will be the first full-scale highway bridge to use superelastic shape memory alloy bars (SMA)and engineered cementitious composite (ECC)to mitigate column plastic hinge damage and minimize residual displacements after a strong earthquake. A three-dimensional computational model capturing the nonlinear constitutive response of the novel materials and the effects of dynamic soil-structure interaction was developed to assess the seismic response of the bridge in finite-element software OpenSees.Two versions of the same bridge were analyzed and compared,one with conventional cast-in-place reinforced concrete columns,and the other with top plastic hinges incorporating Nickel-Titanium (NiTi)SMA reinforcing bars and ECC.The novel SMA/ECC plastic hinges were found to substantially reduce damage and post-earthquake residual displacements in the bridge substructure,but led to larger maximum drifts relative to the bridge with conventional reinforced concrete plastic hinges.The analysis results suggested that the novel plastic hinges could lead to improved post-earthquake serviceability of bridges after intense earthquakes. | Jiping GE M.Saiid SAIIDI Sebastian VARELA | 2019 | Frontiers of Structural and Civil Engineering2019，13，1： | 3 |
| 4 | Seismic restrainer design methods for simply supported bridges显示文摘 | Saiidi M Randall M Maragakis E | 2001 | Journal of Bridge Engineering ASCE2001，6，5： | 1 |
| 5 | Shake table studies and analysis of a two-span RC bridge model subjected to a fault rupture 显示文摘 | Saiidi M Vosooghi A Choi H | 2014 | ASCE Journal of Bridge Engineering2014，19，8： | 1 |
| 6 | Prestressed force effect on vibration frequency of concrete bridges 显示文摘 | Saiidi M Douglas B Feng S | 1994 | Journal of structure Engineering1994，120，7： | 1 |
| 7 | Seismic performance of two-column bents-part I:retrofit with carbon fiber-reinforced polymer fabrics显示文摘 | PULIDO C SAIIDI M S SANDERS D | 2005 | ACI Structural Journal2005，101，4： | 1 |
| 8 | Fatigue response of new graphite/epoxy-concrete girder 显示文摘 | Kavlicoglu B M Saiidi M Gordaninejad F | 2003 | Journal of Composites for Construction ASCE2003，7，1： | 1 |
| 9 | Prestress force effect on vibration frequency of concrete bridges 显示文摘 | Saiidi M Douglas B Feng S | 1994 | Journal of Structural Engineering1994，120，7： | 1 |
| 10 | A Simple nonlinear seismic analysis of R/C structures 显示文摘 | Saiidi M Sozen M | 1981 | Journal of the Structural Division ASCE1981，，： | 1 |
| 11 | Prestress force effect on vibration frequency of concrete bridges 显示文摘 | Saiidi M Douglas B Feng S | 1994 | Journal of Structural Engineering1994，120，7： | 1 |
| 12 | Simple nonlinear seismic analysis of R/C structure 显示文摘 | Saiidi M Sozen M A | 1981 | Journal of Structural Division ( ASCE )1981，107，8： | 1 |
| 13 | Hysteretic modelsforreinforcedconcrete显示文摘 | Saiidi M | 1982 | JournalofStructuralDivision ASCE1982，108，5： | 1 |
| 14 | Simple nonlinear seismic analysis of R/C structures显示文摘 | SAIIDI M SOZEN M A | 1981 | ASCE1981，107，5： | 1 |
| 15 | Prestress force effect on vibration frequency of concrete bridges显示文摘 | Saiidi M Douglas B Feng S | 1994 | Journal of Structural Engineering1994，120，7： | 1 |
| 16 | Seismic restrainer design methods for simply supported bridges显示文摘 | RANDAL M MARAGAKIS E | 2001 | J Bridge Eng2001，6，5： | 1 |
| 17 | Emergency repair of an RC bridge column with fractured bars using externally bonded prefabricated thin CFRP laminates and CFRP strips显示文摘 | Yang Yang Sneed L Saiidi M S | 2015 | Composite Structures2015，133，： | 1 |
| 18 | Hysteresis models for reinforced concrete 显示文摘 | SAIIDI M | 1982 | Journal of Structure Division ASCE1982，108，5： | 1 |
| 19 | Necrotising fasciitis显示文摘 | Saiidy Hasham Paolo Matteucci Paul R W Stanley | 2005 | BMJ2005，330，9： | 1 |
| 20 | Douglas,B,Feng,S,Prestress force effect on vibration frequency of concrete bridges显示文摘 | Saiidi M | 1994 | Journal of Structural Engineering1994，120，7： | 1 |
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