Quantity Survey & Estimation – Lecture # 4

Quantity Survey & Estimation – Lecture # 4

Table of Content

    • Arch Masonry
    • An estimate of 4 types of Arches Masonry
    • Masonry Steps
    • Calculation of Simple Masonry Steps

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Quantity Survey & Estimation – Lecture # 4 – PDF

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Quantity Survey & Estimation – Lecture # 4 – Excerpt

Quantity Survey & Estimation

Course Instructor

Engr. Shad Muhammad

Lecturer, Department of Civil Engineering

Qurtuba University of Science & IT, D. I. Khan.

Review of Lecture # 3

Introduction to Center Line Method

General Consideration in Center Line Method

Example # 1 & 2 on “Center Line Method”

Discussion of Assignment #2

Taking Quiz#1

Content of Lecture # 4

Arch Masonry

Estimate of 4 types of Arches Masonry

Masonry Steps

Calculation of Simple Masonry Steps

Arch Masonry Calculations

The quantities of masonry work in arch is calculated by multiplying the mean length of arch by breadth of wall and by the thickness of arch.

In the case of culvert, the quantity of arch masonry work is equal to the length of arch face to face * mean length of arch * thickness of arch.

Arch Masonry Calculations

  1. Segmental Arch with Span & Angle Given

Length and Special Considerations

  1. Segmental Arch of 60o

Length and Special Considerations

  1. Semi-Circular Arches

Length and Special Considerations

  1. Flat Arches

Length and Special Considerations

Estimating of Steps

Steps are usually constructed when the construction of the building has progressed sufficiently & the earthwork in foundation for step needs excavation afresh.

The earthwork in excavation for steps is usually neglected.

Estimating of Steps

Estimating of Steps

Estimating of Steps

Problem: Estimating the quantities of Earthwork, Concrete, Brickwork, and Finishing work of different types of steps from the drawings.

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