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Architecture Department
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THE EFFECT OF REINFORCED CONCRETE ON SAFETY OF RESIDENTIAL BUILDINGS IN NIGERIA
CHAPTER ONE
INTRODUCTION
Residential Building: This is defined as the building which sleeping accommodation is provided for normal residential purposes. It is provided with or without cooking or dining or both facilities. Residential building includes one or two story or multi-family dwelling, lodging or rooming houses, dormitories, and apartment houses.
The residential building can be owned by an individual or co-operative association. Each resident or resident household has membership in the co-operative association. In non-equality co-operative members have occupancy right to a specific suite within the housing co-operative as outlined in their "occupancy agreement" or "proprietary lease" which is essentially a lease. In ownership co-operatives occupancy rights are transferred to the purchaser by way of the title transfer.
The major function of the residential building is for the accommodation, both for private and the public users.
LIMIT STATE DESIGN BS 8110
BS 8110 is a British standard for the design and construction of reinforced and pre - stressed concrete structure.
This theory came into existence as a result of the discrepancies between the behaviour of materials by elastic analysis and that which occur in practice.
Although BS 8110 is used for most civil engineering and building structures, bridges and water-retaining structures, this are covered by separate standards of (BS 5400 and BS 8007).
Limit sate design requires the structure to satisfies two principal criteria, that is the Ultimate Limit State (ULS) and the serviceability Limit State (SLS). A limit state is a set of performance criteria (eg. vibration level, deflection, strength, stability, buckling, twisting, collapse) that must be met when the structure is subjected to loads. This later leads to checks for the protection for instance deflection and cracks checks.
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