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Horizontal curved bridges are very common at intersections and at the changing angle of bridge alignment. Almost in every previous earthquake report, it can be seen that the columns of a curved segment experience torsional damage, and the curved decks are unseated from the abutment support. The main reason behind that phenomenon is the in-plane deck rotation which results because of the complex dynamic coupling between two longitudinal directional vibrations. The curved decks are susceptible to deck rotation because in a curved segment, the centre of mass and the centre of stiffness generally lie outside the bridge deck and are not located at the same point. The pounding with the abutment often increases the rotational tendency of the deck. In this paper, a classical mechanics-based approach is adopted to analytically estimate the deck rotation potential of curved bridge considering the deck-abutment pounding interaction. The deck-abutment pounding is modelled using non-smooth techniques considering the Newton's impact law in the normal and Coulomb's friction in the tangential direction. Within the scope of this paper, a parametric study is performed to get the ideal combination of the column and bent arrangement and the gap distance. Copyright © 2016 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

This article estimates and compares Total Factor Productivity Growth (TFPG) between the Small Scale Industries. (SSIs)/ Micro, Small and Medium Enterprises (MSMEs) and the large scale industries sectors of India over the period 1973-74 to 2006-07 based on state level data. Using non-parametric Data Envelopment Analysis and Malmquist productivity index methodology, the article finds decline in TFPG for the SSIs/MSMEs sector over the period 1987-88 to 2001-02 mainly due to severe technological regress which also continued during 2001-02 to 2006-07. The article thus concludes with suggestions on technological up gradation of the SSIs/MSMEs sector for higher TFPG over time. [ABSTRACT FROM AUTHOR]