Assessment on Effect of Vertical Component Earthquake Ground Acceleration on Building Structure
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Date
2016-12
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Addis Ababa University
Abstract
This thesis is concerned with effect of vertical component earthquake ground
acceleration on the response of reinforced building structure. Basically the
study focuses to assess the effect of vertical component earthquake ground
acceleration within zone 4 and near fault area of Ethiopia. To achieve these
objectives varying source distance and soil profile were used to analyze
selected building in linear response spectrum analyses. The results like axial
force, shear force and bending moment were used to know effect of vertical
component of earthquake ground acceleration. From these, ignoring vertical
component of earthquake ground acceleration at near fault causes
considerable amount of internal response. The effect of vertical earthquake
ground acceleration decreased as epicentral distance increased and become
almost similar with effect of lateral earthquake ground acceleration at far
distance. To sum up this, source distance, soil profile and magnitude of
earthquake were a main factor to determine peak response of vertical
earthquake component at near source.
Generally, including vertical component earthquake ground acceleration in
design of reinforced concrete building structure within zone 4 of Ethiopia is not
that much important compared to the lateral components. But vertical
component earthquake ground acceleration should be considered if the
proposed building structure is sited around near faults.
KEYWORDS: Vertical earthquake component, internal response, near fault,
near source factor
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Keywords
Vertical earthquake component, internal response, near fault, near source factor