PRESENTING PAPER AT CIVERE: EARTHQUAKE RESISTANT STRUCTURES

PRESENTING PAPER AT CIVERE: EARTHQUAKE RESISTANT STRUCTURES

ABSTRACT 

After the devastating earthquakes in Killari (Maharashtra) on 30th sep 1993 and in Bhuj(Gujarat) on 26th January 2001, major concern is attracted towards earthquake resistively. In a developing nation like India commonly built structures are one to three storey RCC dwellings in rural areas, whereas in rural parts adobe and stone masonry construction is still a common practice. In such a scenario proposals of costlier constructions practices like ductile RCC or steel structures can find no place in affordable housing scheme. Therefore precast construction proved remedy to change over from adobe stone masonry to concrete construction. But the major disadvantage faced by precast products is its poor performance during earthquakes. The weakness is remedied in these proposals by amalgamation of two concepts in a new technique wherein combination of pre-cast structures and base isolation strategies is introduced. Emphasis on theoretical and experimental studies of base isolated precast frames is necessary in such cases. Research work is required for feasibility , analytical and experimental studies for base iso latticed precast structure before it can be implemented following are a few research guidelines ,
1) Different possible isolation systems for precast buildings can be collected and reviewed for technical merits and demerits constructability and versatility. Of particular importance is development of seismic design recommendations in codes for base isolated precast structure.