This paper presents investigation carried out, including experimental and numerical studies, on low-rise shear-dominated brick masonry structures for the calculation of force reduction factor R. Basic experimental tests were conducted on masonry constituent materials for mechancial characterization. In-plane quasi-static cyclic tests were conducted on twelve full scale brick masonry walls, to u...

The effects of plan asymmetry on the earthquake response of one­ story systems are identified by comparing the dynamic response of an asymmetric­ plan system and the corresponding symmetric-plan system for a wide range of system parameters-uncoupled lateral vibration period, uncoupled torsional-to-lat­ eral frequency ratio, stiffness eccentricity, and yield factor. Elastic as weI! as in­ elasti...

the nonlinear static pushover analysis technique is mostly used in the performance-based design of structures and it is favored over nonlinear response history analysis. however, the pushover analysis with fema load distributions losses its accuracy in estimating seismic responses of long period structures when higher mode effects are important. some procedures have been offered to consider thi...

recently, two of the authors have introduced the collapse capacity spectrummethodology, which allows the assessment of the collapse capacity of highly inelastic p-deltasensitive regular frame structures without performing non-linear time-history analyses. the mainingredient of this method is the collapse capacity spectrum, which represents the seismic collapsecapacity of an inelastic non-deteri...

Reflection electron energy loss spectra from some insulating materials (CaCO3, Li2CO3, and SiO2) taken at relatively high incoming electron energies (5-40 keV) are analyzed. Here, one is bulk sensitive and a well-defined onset of inelastic excitations is observed from which one can infer the value of the band gap. An estimate of the band gap was obtained by fitting the spectra with a procedure ...

Experiments have been undertaken in a wave basin with the hinged attenuator-type energy converter M4 6-float configuration two hinges for power take off (PTO), moored to single-point buoy. This follows previous experiments inelastic cables giving very high snap loads. The PTO was disengaged these tests. aims are i) use elastic mooring cable reduce loads of system, stiffnesses tested, and ii) st...