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6010 = 2 6 .1 3 230 2430 = 10 .565 230

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(REF TABLE1)

(2)

H1 H2 M1 M2 M3 L1 L2

NO.

(1)

1 2 3 4 5 6 7

8.35 8.35 8.35 0.35 0.25 0.25 0.25

3.5 (3) 0.50 0.50 0.50 0.44 0.41 0.36 0.31

5.0 (4) 0.75 0.74 0.74 0.59 0.56 0.53 0.42

7.5 (5) 1.00 0.96 0.96 0.81 0.75 0.67 0.53

10 (6) 1.16 1.09 1.06 0.94 0.87 0.76 0.58

12.5 (7) 1.31 1.19 1.13 1.03 0.95 0.83 0.61

15 (8) 1.45 1.30 1.20 1.10 1.02 0.90 0.65

17.5 (9) 1.59 1.41 1.27 1.17 1.10 0.97 0.69

20 (10) 1.91 1.62 1.47 1.34 1.25 1.11 0.73

25 (11) 2.21 1.85 1.69 1.51 1.41 1.26 0.78

30 (12) 2.5 2.1 1.9 1.65 1.55 1.4 0.85

35 (13)

3.05 2.5 2.2 1.9 1.78 1.06 0.95

40 (14)

WHICH HEIGHT TO WIDTH RATIO DOES NOT EXCEED 0.75 AND CRUSHING STRENGTH IN N/MM2 IS NOT LESS THAN

BASIC COMPRESSIVE STRESSES IN N/mm2 CORRESPONDING TO MASONRY UNITS OF

allowed for such masonry at the discretion of the desions.

related to intrinsic strength of the stone and allowable working stones on excess of those given in the table

stress for coarsed walling of similar materials. NOTE5- The strength of ashlar masonry (natural stone masony of massive type with thin joints) is closely

table. NOTE4- The Permissible stress for random rubble masonry may be taken as 75 percent of the corresponding

cured. NOTE3- Linear interpolation is permissible for units having cruhing strengths between those given in the

NOTE1- The table is valid for slenderness ratio up to 6 and loading with zero eccentricity. NOTE2- The values given for basic compressive stress are applicable only when the masonry is properly

MORTAR TYPE

SL.

(Clause 5.4.1)

TABLE 8 BASIC COMPRESSIVE STRESSES FOR MASONRY (AFTER 28 DAYS)


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10 7 5 4

HEIGHT TO THICKNESS RATIO (2)

NOTE 1- For intermediate values, linear interpolation is permissible. NOTE2- Height is to e reckoned from 15 cm below ground level or top of footing foundation block, whichever is higher, and up to the top edge of the well. NOTE3- The thickness should be measured including the thickness of the plaster.

Up to 285 575 860 1150

N/m2

DESIGN WIND PRESSURE (1)

TABLE 11 HEIGHT TO THICKNESS RATIO OF FREE-STANDING WALLS RELATED TO WIND SPEED


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GANDHI CEMENT PIPE COMPANY Chinna Dharapuram, Karur (Dt). Cell: 94432-16429, 98430-32179.

NATHAN CEMENT PIPE COMPANY Kangeyam Main Road, Nallur,Thirupur - 6. Cell: 94431-06579, 92443-06579. Branches: Erode Poondurai

Avinasi Road Anaipudur

Arulpuram Palladam Road


PORCH 15'0"X17'0"

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OUTSIDE


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Nagakanni Amman Thunai

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