5. DRAWINGS OF BUILDING COMPONENTS

The drawings of different components of a building are to be prepared for the data given using AutoCAD software.

This statement indicates that the section focuses on creating architectural drawings of building components using AutoCAD, a popular software for drafting and designing. Students will learn how to accurately depict various building elements based on specified data.

Think of AutoCAD as a digital version of a drawing board where architects sketch their building plans. Just like using a pencil and ruler to make precise drawings, AutoCAD allows students to manipulate designs with greater ease and accuracy.

A. CROSS SECTION OF MASONRY WALL FOUNDATION, RCC COLUMNS WITH ISOLATED AND COMBINED FOOTINGS

Exercise 5.1 Draw a cross section of a S.S. Masonry foundation to be provided for a load bearing wall 300mm thick in Burnt Brick Masonry in superstructure of a residential building.

This part introduces the first exercise where students are required to create a cross-sectional drawing of a structural masonry foundation. The specifications include the thickness of the wall, type of materials (Burnt Brick), and the implications for the building's superstructure, which must support the overall structure.

Imagine you're building a sandcastle. You need a solid base to support all the layers above it. Similarly, in construction, a strong foundation made of bricks supports the walls and roof of a building.

Use following data:

• Width of foundation = 1.20m
• Depth of foundation below GL = 1.20m
• Width of PCC = 1.20m
• Thickness of PCC in 1:3:6 = 75mm.

This chunk lists the specific dimensions and material properties the students will use for the drawing. The foundation's width, depth, and the proportions for Plain Cement Concrete (PCC) are essential for ensuring the foundation's strength and stability.

Consider building a large bookshelf. The wider and deeper the base of the bookshelf, the more weight it can hold without tipping. Similarly, the foundation must be adequately sized to support the weight of the building above.

Details for footings include:

• Width and Depth of First Footing: 1.05m and 0.375m respectively,
• Width of Second Footing: 0.90m,
• Depth of Second Footing: 0.375m,
• Thickness of DPC in 1:2:4 = 100mm.

This segment provides additional specifications for the isolated footings that will further support the walls. Understanding these details helps ensure stability and proper load distribution in the foundation design.

Think of a tree. Strong roots (footings) spread out widely to support the trunk and branches (the building). Each footing acts like a root, anchoring the structure firmly in place.

Exercise 5.2 Draw a cross section of a S.S. Masonry foundation for a partition wall 150mm thick in Burnt Brick Masonry in a residential building.

This exercise tasks students with drawing a cross-section of a thinner masonry foundation for a partition wall, emphasizing the importance of distinguishing between load-bearing and non-load-bearing walls in design.

It's like building a room divider in your home. While you need a strong structure for outer walls, the inner walls can be lighter and less robust, just like a partition doesn't have to bear as much weight.

Exercise 5.3 Prepare a working drawing for an isolated column footing (RCC) for a column size 300mm x 300mm reinforced with #8 of 12mm HYSD-steel as main bars together with 2 legged 8ϕ stirrups at 200c/c.

In this exercise, students will create a detailed drawing for an isolated column footing. They will learn about reinforcement, including the size and spacing of steel bars, which is crucial for the strength and safety of the concrete structure.

Consider the legs of a table. Just as the legs support the tabletop, column footings support the columns of a building that keep everything stable and balanced.

Exercise 5.4 Prepare a working drawing for an isolated rectangular RCC column and footing with specified sizes and reinforcement details.

Here, students are tasked with drawing a rectangular RCC column and its corresponding footing, reinforcing the need to understand scaling dimensions and the importance of concrete strength in construction.

Just like choosing the right type of support beams when building a treehouse, selecting the correct dimensions and reinforcement ensures that the column can carry its share of the weight safely.

Exercise 5.5 Draw plan, sectional elevation, and cross section of a slab type combined footing with specified details.

This exercise directs students to draw a combined footing, incorporating various dimensions and reinforcement strategies. It emphasizes the complexity involved in ensuring that multiple columns can be supported by a single footing.

Think of a multi-level cake where each layer supports the one above it. In construction, combined footings work similarly by distributing weight from the columns across a single structure.

B. DIFFERENT TYPES OF BONDS IN BRICK MASONRY Exercise 5.6 Draw two consecutive courses for corner joints of walls in English bond.

This segment shifts focus to the different types of bonds used in brick masonry, specifically the English bond, which combines bricks in a staggered pattern for strength. Students learn to visualize how bricks interact in various configurations.

When you stack blocks, you can create stronger structures by staggering them, preventing weakness at seams. Just as in block stacking, the English bond strengthens brick walls through careful placement.

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