Figures 6 4 and 6 5 show the configuration of shear panels vertical stiffeners

Figures 6 4 and 6 5 show the configuration of shear

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Figures 6-4 and 6-5 show the configuration of shear panels, vertical stiffeners and openings utilizing vertical core and horizontal core blocks respectively. Figures 6-6 and 6-7 give details of construction and reinforcement of shear panels utilizing vertical core and horizontal core blocks respectively. 6.1.2.3 Load bearing walls (internal and external) 6.1.2.3.1 Loading bearing walls other than shear walls shall be reinforced as follows: a) corners: three 12 mm diameter bars placed vertically with 6 mm diameter links; links spacing shall be at 400 mm centres for vertical core blocks and at 300 mm centres for horizontal core blocks - see Figures 6-8 and 6-9; b) intersections: four 12 mm diameter bars placed vertically with 6 mm diameter links; links spacing shall be at 400 mm centres for vertical core blocks and at 300 mm centres for horizontal core blocks see Figures 6-8 and 6-9; c) vertical wall reinforcement: single 12 mm diameter bars spaced 1.8m apart; see Figures 6-10 and 6-11; and d) horizontal wall reinforcement: two 6 mm bars or equivalent every third row; see Figures 6 -10 and 6-11 . 6.1.2.3.2 When vertical core blocks are used, the cores with reinforcement shall be filled with 1:2:4 nominal mix (refer to Table 4-5 ). Concrete shall be added after every second course of block erection and properly compacted; see Figure 6-10 . 6.1.2.3.3 When horizontal core blocks are used, stiffeners shall be introduced to accommodate the vertical reinforcement at the appropriate locations. In forming the stiffeners,1:2:4 nominal mix concrete shall be poured and compacted after total block erection in order to ensure good wall interlocking; see Figure 6-11. 6.1.2.4 Non-load bearing walls (internal) 6.1.2.4.1 The minimum reinforcement for non -load bearing walls shall be as follows: a) corners: one 12 mm diameter bar be placed vertically; b) intersections: one 12 mm diameter bar placed vertically; and c) vertical wall reinforcement: single 12 mm bars shall be spaced at a maximum of 2.5 m apart. Figures 6-12 and 6-13 show the location of reinforcement for non-load bearing walls constructed of vertical core and horizontal core blocks respectively. 6.1.2.4.2 When vertical core blocks are used, the cores with reinforcement shall be filled with grout or fine aggregate concrete of 1:2:4 nominal mix, as the work proceeds. 6.1.2.4.3 When horizontal core blocks are used, stiffeners shall be introduced to accommodate the vertical reinforcement at the appropriate locations. In forming the stiffeners,1:2:4 nominal mix concrete shall be poured and compacted after total block erection in order to ensure good wall interlocking.
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PCTTS 599: 20XX 86 6.1.2.5 Ring beams 6.1.2.5.1 All walls shall be finished at the top by a reinforced concrete ring beam not less than 200 mm in depth. 6.1.2.5.2 The minimum ring beam reinforcement shall be four 12 mm diameter bars with 6 mm diameter stirrups spaced at 300 mm between centres. The beam width shall be a minimum of 150 mm without plaster.
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