Eerc

R. Pradeep Kumar, D. Srinagesh, T. Seshunarayana, R. K. Chadha, Narender Bodige*, G. Suresh, D. Hima Chandan and C. V. R. Murty Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, India CSIR-National Geophysical Research Institute, Hyderabad 500 007, India Department of Civil Engineering, Anurag Group of Institutions, Hyderabad 501 301, India Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, India

ABSTRACT: Earthquake performance of RC bare frame has been well documented in the past. Also, damage patterns in reinforced concrete frames during the past earthquakes have been extensively studied. However, more recently, several destructive earthquakes, ...

Rapid urbanization leads to more demand for construction of commercial buildings in Indian cities. The ease construction and more space demand of buildings are constrained in conventional buildings. To overcome constrained, the flat slab buildings evolved and practiced recent time in urban cities. It is becoming more popular for multistoried commercial buildings but experiences larger displacements under lateral load effect caused by earthquakes. These buildings need urgent to assess the vulnerability of buildings. In this fragility analysis is carried out, and it is useful for the evaluation of the probability of structural damage due to earthquakes as a function of ground motion indices. This paper is an attempt made to develop the fragility curves for seven-storey RC commercial buildings and a comparison made between the bare frame, flat slab, flat slab with drop, flat slab with drop and perimeter beam buildings without and with exterior infill walls. The building models are anal...

ABSTRACT: Earthquake performance of RC bare frame has been well documented in the past. Also, damage patterns in reinforced concrete frames during the past earthquakes have been extensively studied. However, more recently, several destructive earthquakes, ...

This paper presents a metamaterial inspired dual-band bandpass filter. The filter discussed is constructed using two parallel-coupled lines, interconnected with two circular shaped stubs. The designed filter offers a 3 dB fractional bandwidth of 70.6% and 26.2% with centre frequencies of 1.77 GHz and 4.13 GHz for first and second pass band. Both the pass bands are separated by a stop band of 1.2 GHz. This filter offers compactness with electrical size of 0.10λ0×0.08λ0, given λ0 is wavelength in free space at centre frequency of first passband. The average group delay for both the pass bands are 0.4 ns and 0.6 ns respectively. The modeling of proposed filter is carried out by high frequency structural simulator ANSYS HFSS 14.0 3D software. It is useful in global systems for mobile communications (GSM) at 1800 MHz and fixed satellite service (3.7–4.2 GHz).

This paper presents a metamaterial inspired dual-band bandpass filter. The filter discussed is constructed using two parallel-coupled lines, interconnected with two circular shaped stubs. The designed filter offers a 3 dB fractional bandwidth of 70.6% and 26.2% with centre frequencies of 1.77 GHz and 4.13 GHz for first and second pass band. Both the pass bands are separated by a stop band of 1.2 GHz. This filter offers compactness with electrical size of 0.10λ0×0.08λ0, given λ0 is wavelength in free space at centre frequency of first passband. The average group delay for both the pass bands are 0.4 ns and 0.6 ns respectively. The modeling of proposed filter is carried out by high frequency structural simulator ANSYS HFSS 14.0 3D software. It is useful in global systems for mobile communications (GSM) at 1800 MHz and fixed satellite service (3.7–4.2 GHz).