DESIGN OF MASONRY STRUCTURES QUIZ

Minimum thickness of stiffening wall for 1 to 3 storeys shall not be less than

30 cm

15 cm

20 cm

10 cm

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The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is

More than 1/24

Less than or equal to 1/24

Less than or equal to 1/12

Less than or equal to 1/6

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Consider the following statements:A high lime content in a composite cement-lime mortar results in1. Slow hardening.2. Quick setting.3. Weaker mortar.

2 and 3 are correct

1 and 3 are correct

1 and 2 are correct

1, 2 and 3 are correct

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Consider the following statements regarding provision of chases in masonry,(i) No chase should be permitted in a half brick load-bearing wall,(ii) Vertical chases should not be closer than 2 m in any stretch of a wall,(iii) Chases should be provided near to bearings of beams and lintels.

(i) and (ii) are correct

(i) and (iii) are correct

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

(ii) and (iii) are correct

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If the ratio of center to center spacing of intersecting walls to actual thickness of intersecting wall is more than 20, then the stiffening coefficient for wall proper will be

Between 0 and 1

1

Greater than 1

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The effective height of free standing non-load bearing wall and column respectively will be

2.0H and 2.0H

1.0H and 1.0H

1.5H and 1.5H

2.0H and 1.5H

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If the horizontal cross-sectional area of a wall is 1200 cm², then the basic stress shall be multiplied by a reduction factor equal to

0.85

0.6

0.95

0.75

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The timber floor not spanning on the masonry wall but properly anchored to the wall gives

Lateral restraint but not rotational restraint

Both lateral and rotational restraints

Rotational restraint but not lateral restraint

Neither lateral nor rotational restraint

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Consider the following statements regarding provision of chases in masonry,<br/>(i) No chase should be permitted in a half brick load-bearing wall,<br/>(ii) Vertical chases should not be closer than 2 m in any stretch of a wall,<br/>(iii) Chases should be provided near to bearings of beams and lintels.

(i) and (ii) are correct

(i) and (iii) are correct

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

(ii) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than

Vi x height of longer opening

Ax height of shorter opening

Vt x height of shorter opening

Vt x height of longer opening

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