In this paper, the two-dimensional vibration controls of a power transmission tower with a pounding tuned mass damper (PTMD) under multi-component seismic excitations are analyzed. A three-dimensional finite element model of a practical power transmission tower is established in ABAQUS (Dassasult Simulia Company, Providence, RI, USA). The TMD (tuned mass damper) and PTMD are simulated by the fi...

Collapsing building structures during recent earthquakes, especially in Northern and Eastern Kurdistan, including the 2003 earthquake Cewlig; 2011 Van; 2017 near Halabja province, has raised several concerns about safety of pre-seismic code buildings emergency facilities Erbil city. The seismic vulnerability assessment hospital as is one necessities which have a critical role recovery period fo...

The most used life-line structure of the modern day is the bridges, which has been developed significantly, with the most recent introduction being of the curved bridges. They provide an aesthetic look and are also very convenient at various crossings and cross-over. However, curved bridges have been observed to have poor seismic response. Pounding between the adjacent segments, in-plane deck r...

Curved high-pier rigid frame bridges (CHRF bridges) are unavoidably affected by near-fault ground motions (NFGMs), and seismic pounding between adjacent components of CHRF bridge has a significant effect on the performance bridges. The response laws under NFGMs need further investigation. In this study, influence with impulse directional effects dynamic was studied. Subsequently, responses were...

Four existing methods to calculate critical separation distances between adjacent nonlinear hysteretic structures are evaluated through Monte-Carlo simulations, for which seismic excitation is characterized as a nonstationary random process. All the methods use the well-known Double Difference Combination rule, but follow different approaches to calculate the correlation coefficient ρ. Results ...

The effect of an intensity measure’s (IM’s) sufficiency property on the probabilistic assessment reinforced concrete (RC) structures due to floor-to-floor structural pounding conditions is examined. In first part this investigation, efficiency and properties 23 scalar IMs are verified. Then, magnitude Mw distance Rrup examined as elements in a vector with efficient IM evaluate whether they have...

Abstract In this paper, three different damage indexes were used to detect nonlinear damages in two adjacent Reinforced Concrete (RC) structures considering pounding effects. 2-, 4- and 8-story benchmark RC Moment Resisting Frames (MRFs) selected for purpose with 60%, 75%, 100% of minimum separation distance also without any in-between gap. These analyzed using the incremental dynamic analysis ...