Maximum slenderness ratio of load bearing walls for a dwelling having more than 2 storeys(i) Shall not exceed 12 if lime mortar is used(ii) Shall not exceed 18 if cement lime mortar 1 : 2 : 9 is used(iii) Shall not exceed 24 if cement mortar 1 : 6 is used

Design of Masonry Structures
Maximum slenderness ratio of load bearing walls for a dwelling having more than 2 storeys(i) Shall not exceed 12 if lime mortar is used(ii) Shall not exceed 18 if cement lime mortar 1 : 2 : 9 is used(iii) Shall not exceed 24 if cement mortar 1 : 6 is used

(ii) and (iii) are correct

(i) and (iii) are correct

(i) and (ii) are correct

(i) and (ii) and (iii) are correct

(ii) and (iii) are correct

(i) and (iii) are correct

(i) and (ii) are correct

(i) and (ii) and (iii) are correct

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Design of Masonry Structures
Consider the following statements:1. Masonry in rich cement mortar though having good strength with high shrinkage is much liable for surface cracks.2. Lime mortar possesses poor workability and poor water retentivity and also suffers high shrinkage.3. Masonry in lime mortar has better resistance against rain penetration and is less liable to crack when compared to masonry in cement mortar.Which of these statements are correct?

2 and 3

1, 2 and 3

1 and 3

1 and 2

2 and 3

1, 2 and 3

1 and 3

1 and 2

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Design of Masonry Structures
A 200 mm thick brick masonry wall made of modular bricks carries an axial load of 30 kN/m from wall above and an eccentric load of 20 kN/m from RCC floor acting at a distance of 47.5 mm from the centre line of the wall. The resultant eccentricity ratio is

0.095

0.105

0.1

0.09

0.095

0.105

0.1

0.09

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Design of Masonry Structures
The mode of failure of a very short masonry member having h/t ratio of less than 4 is by

Any of the above

Shear

Buckling

Vertical tensile splitting

Any of the above

Shear

Buckling

Vertical tensile splitting

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Design of Masonry Structures
The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of

2

1.2

1.4

1.6

2

1.2

1.4

1.6

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Design of Masonry Structures
In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as

Larger of (B) and (C)

Actual thickness of the stronger leaf

Sum of thickness of both leaves

Two-third of the sum of thickness of both the leaves

Larger of (B) and (C)

Actual thickness of the stronger leaf

Sum of thickness of both leaves

Two-third of the sum of thickness of both the leaves

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Design of Masonry Structures

Design of Masonry Structures Maximum slenderness ratio of load bearing walls for a dwelling having more than 2 storeys(i) Shall not exceed 12 if lime mortar is used(ii) Shall not exceed 18 if cement lime mortar 1 : 2 : 9 is used(iii) Shall not exceed 24 if cement mortar 1 : 6 is used

Design of Masonry Structures A 200 mm thick brick masonry wall made of modular bricks carries an axial load of 30 kN/m from wall above and an eccentric load of 20 kN/m from RCC floor acting at a distance of 47.5 mm from the centre line of the wall. The resultant eccentricity ratio is

Design of Masonry Structures The mode of failure of a very short masonry member having h/t ratio of less than 4 is by

Design of Masonry Structures The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of

Design of Masonry Structures In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as

Design of Masonry Structures
Maximum slenderness ratio of load bearing walls for a dwelling having more than 2 storeys(i) Shall not exceed 12 if lime mortar is used(ii) Shall not exceed 18 if cement lime mortar 1 : 2 : 9 is used(iii) Shall not exceed 24 if cement mortar 1 : 6 is used

Design of Masonry Structures
A 200 mm thick brick masonry wall made of modular bricks carries an axial load of 30 kN/m from wall above and an eccentric load of 20 kN/m from RCC floor acting at a distance of 47.5 mm from the centre line of the wall. The resultant eccentricity ratio is

Design of Masonry Structures
The mode of failure of a very short masonry member having h/t ratio of less than 4 is by

Design of Masonry Structures
The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of

Design of Masonry Structures
In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as