STRUCTURAL MASONRYSubject Code: CVPE 772 Credit: 4:0:0Total contact hrs 56 Duration of SEE: 3hrs CIE: 50 SEE Marks: 100

Course Contents:

UNIT -IIntroduction, Masonry units, materials and types: History of masonry, Characterics of Brick, stone, clay block, concrete block, stabilized mud block masonry units Strength, modulus of elasticity and water absorption. Masonry materials Classification and properties of mortars,Selection of mortars.

Students will be able to reproduce basic knowledge of mathematics, science and engineering in the areas of analysis of components such as stone, brick and mortar (L1)Students will be able to Understand to classify different types of masonry units available in the present market (L2)Students will be able to apply the modulus of elasticity to calculate lateral stresses in a brick mortar prism. (L3).

UNIT -IIStrength of Masonry in Compression: Behavior of Masonry under compression, strength and elastic properties, influence of masonry unit and mortar characteristics, effect of masonry unit height on compressive strength, influence of masonry bonding patterns of strength, prediction of strength of masonry in Indian context, failure theories of masonry under compression. Effects of slenderness and eccentricity, effect of the rate of absorption, effect of curing, the effect of ageing, the workmanship on compressive strength

Students will be able to define the effects of slenderness ratio and eccentricity.(L1)Students will be able to Understand to classify the failure theories of masonry under compression (L2)Students will be able to expose to various quality control aspects of the civil engineering materials by performing different lab test on materials. (L3)

UNIT -IIIFlexural and shear bond, flexural strength and shear strength: Bond between masonry unit and mortar, tests for determining flexural and shear bond strengths, factors affecting bond strength, effect of bond strength on compressive strength, orthotropic strength properties of masonry in flexure, shear strength of masonry, test procedures for evaluating flexural and shear strength. Permissible stresses:Permissible compressive stress, stress reduction and shape reduction factors, increase in permissible stresses for eccentric vertical and lateral loads, permissible tensile and shear stresses.

Students will be able to apply code dictated loading conditions for structural members toDetermine the most critical loading condition for member design in bending and axial forces.(L3) Students will be able to derive the expressions for lateral stresses in brick mortar prism subjected to axial compressive stress, based on elastic analysis. (L4)Students will be able to analyze the spatial stiffness of of the building and check analytically stiffening wall(L4)students will be able to solve engineering problems of masonry structural system subjected to gravity loading. (L6)

UNIT -IVDesign of load bearing masonry buildings: Permissible compressive stress, stress reduction and shape reduction factors, increase in permissible stresses for eccentric vertical and lateral loads, permissible tensile and shear stresses, Effective height of walls and columns, opening in walls, effective length, effective thickness, slenderness ratio, eccentricity, load dispersion, arching action, lintels; Wall carrying axial load, eccentric load with different eccentricity ratios, wall with openings, freestanding wall; Design of load bearing masonry for buildings up to 3 to 8 storeys using BIS codal provisions.

Students will be able to evaluate the impact of engineering solutions on the society (L5)Students will be able to practice the culture of professional and ethical responsibilities by following codal provisions in the analysis, design and detailing masonry (L5)Students will be able to predict contemporary issues regarding failure of structures due to wrong design,Use of poor quality of materials and faulty construction methods (L6)

UNIT -VEarthquake resistant masonry buildings:behavior of masonry during earthquakes, concepts and design procedure for earthquake resistant masonry, BIS codal provisionsMasonry arches, domes and vaults: Components and classification of masonry arches, domes and vaults, historical buildings, construction procedure

Students will be able to analyze and design masonry arches and domes. (L4)Students will be able to solve engineering problems of masonry structures subjected to seismic loading. (L6)Students will be able to perform the seismic design of brick masonry buildings with reference to IS standards. (L6)Students will be able to rewrite the problems that involve review of standard code provisions and guidelines to produce an efficient design of masonry members. (L6)

BLOOMS LEVEL COs

CO 1 Reproduce basic knowledge of mathematics, science and engineering in the areas of analysis of components such as stone, brick and mortar. (L1)CO 2 expose to various quality control aspects of the civil engineering materials by performing different lab test on materials. (L2)

CO 3 Calculate engineering problems of masonry structural system subjected to gravity, wind and seismic loadings. (L3)CO 4 Derive the expressions for lateral stresses in brick mortar prism subjected to axial compressive stress, based on elastic analysis (L4)

CO 5 Rewrite the problems that involve review of standard code provisions and guidelines to produce an efficient design of masonry members. (L6)