Analysis of structure

ANALYSIS  OF  STRUCTURE:---The moments and forces due to design loads on continues slabs may be obtained by the method as prescribed in section for the solid slabs Alternatively the slabs may be designed as a series of simply supported spans provided they are not exposed to weather or corrosive conditions, wide cracks may develop at the supports and the engineer in charge shall satisfy himself that these will not impair finishes or lead to corrosion of the reinforcement The recommendations given regarding maximum distance between bars apply to areas of the solid concrete in this form of the construction The curtailment, anchorage and cover to reinforcement shall be described at least fifty percent of the total main reinforcement and shall be carried through at the bottom on the bearing and anchored in accordance with the described manner Where a slab, which is continues over supports , has to be simply supported and reinforcement shall be provided over the supports to control the cracking This reinforcement shall have a cross sectional area of not less than one quarter that required in middle of the adjoining spans and shall extend at least one tenth of the clear span in to the adjoining spans The thickness of the  flat slab shall be generally controlled by the considerations of span to effective depth ratios The structures adjacent to the joint should preferably be supported on  separate columns or walls but not necessarily on separate foundation The reinforcement shall not extend across an expansion joint and the break between the sections shall be complete It is also recommended that structures exceeding 45 meters in length shall be divided by the one or more expansion joints The diameter of the reinforcing bars shall not exceed one eighth of the total thicknees of the slab.