Construction work tutorial of small RC Building

[email protected] ‐ 1

CONSTRUCTION WORK TUTORIAL

Introduction

This tutorial is explaining about simplest way to build RC (Reinforced Concrete) building located in Doha, Qatar. This

project is chosen as a sample for this tutorial because it is only small room and less material to use so that it becomes

relatively much easier to understand to be constructed by Civil Engineer. Some requirements are prepared to

commence constructing this building which is given in the video list below:

1st Tutorial : Short overview and Construction Stages (Structural Work)

2nd Tutorial : Finish Stages (Architectural Work)

3rd Tutorial : Step by Step Construction Schedule in Primavera P6 V16.2

4th Tutorial : Step by Step Construction Design in STAAD.Pro V8i SS6

Construction stage in the first tutorial was recorded in short video uploaded into Youtube, which is accessible through

this address https://www.youtube.com/watch?v=eihemHVX3cU

Any enquiries do not hesitate to email me at [email protected]

1st Tutorial : Short overview and Construction Stages (Structural Work)

1. Project schedule

As the first step to understand this construction work, prior to begin this work, all major work items has to

be put inside giant schedule including planned duration as a basic requirement to provide labour, material,

equipment and cost.

We are operating Oracle Primavera P6 V16.2 as project schedule software to breakdown all necessary works

to be followed by field civil engineer. Besides explaining Primavara P6 in this tutorial, we also compare it with

MS Project 2016 to whom is familiar working in MS Project only.

Some main tasks in doing this project consist of Work Breakdown Structure (WBS) as a list below:

1. Foundation

2. Ground beam and slab

3. RC (Reinforced Concrete) and Steel column

4. Masonry / Concrete block

5. Roof frame and sheet

6. Finishes (Architectural and MEP Work)

This simple building will be constructed following the schedule below:


2. 3D View

Expected final completion of this building can be seen in the figure below

Top View

Rear View


3. Construction Stages

Physically, main construction stages of RC/Steel structure are following sequence figures below:

1. Soil Excavation for shallow foundation 2. Lean concrete and timber formwork for pad footing.

3. Spacer is required to receive proper concrete cover at bottom side

4. Reinforcement bar for pad footing and pedestal. Concrete cover shall be considered following regulation.

5. Strengthened formwork by adding some timbers to prevent any damages while using vibrator.

6. Concrete pouring on the pad footing using Fc’35 MPa or C35/40


7. Formwork dismantling; in case any crack or honeycomb on the concrete surface, it shall be either rectified by Sika/Fosroc grouting or concrete injection.

8. Timber formwork is provided as a casing of concrete pedestal

9. Each footing has pedestal and it is ready now to be backfilled by imported soil

10. After backfilling and compaction, each footing is connected by ground beam. Underneath ground beam, we shall overlay compacted soil by polythene sheet and lean concrete.

11. Reinforcement bar and timber formwork are installed along ground beam line.

12. Make sure that all formworks have been strengthened on both side (in the picture, formwork is strengthened one side only)


13. One day after concrete pouring, Formwork can be dismantled; in case any crack or honeycomb on the concrete surface, it shall be either rectified by Sika/Fosroc grouting or concrete injection. Within 3 days, this fresh concrete must be cured by clean water to maintain temperature and shrinkage effect

14. Next step is to pour the concrete for column. Prior to cast it, we have to fabricate timber formwork properly and fix it with additional support for strengthening in order to reduce any damage while using vibrator.

15. One day after concrete pouring, Formwork can be dismantled; in case any crack or honeycomb on the concrete surface, it shall be either rectified by Sika/Fosroc grouting or concrete injection. Within 3 days, this fresh concrete must be cured by clean water to maintain temperature and shrinkage effect

16. While fixing steel column on the ground beam and concrete column, we shall backfill and compact the floor area as per requirement. Base plate and bolt fixing is not visible in this picture. It will be discussed in the further topic.

17. Steel beam fixing and preparation for concrete floor can be done in the same time. After compaction, we have to apply polythene sheet, lean concrete and spacer to receive concrete cover for reinforcement bar (Wiremesh)

18. Final step is to install reinforcement bar (wiremesh) for the concrete slab and concrete pouring as the last stage of this structural work. Curing by water on the RC slab within 3 days is a must to be done to achieve expected quality as per requirement.

Construction work tutorial of small RC Building

Engineering

Transcript of Construction work tutorial of small RC Building