Author: Thinakaran R
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TYPES OF SERVICE DRAWINGS USED FOR PRECAST DETAILING
Types of Service drawings: Crane drawing Lift drawing PT drawing (Post tension) Mechanical service drawing Electrical service drawing Fire service drawing Steel detail drawings Hydraulic service drawing Crane drawings Refer crane drawings for loading platform location, Crane tonnage & its relevant circles and other crane related data’s. (Refer Fig.01) Fig .01 (Ref. Crane drawing) 2.…
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HEADER WITH DETAILS
In-situ or Precast element present above the door or window opening is called header. (Ref.Fig.01&02) Usually, the height of header will be small, and it will have more load impact for the smaller load distribution area. For structural stability that header needs to have high strength. If structural engineer didn’t specify more strength means it…
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GROUT TUBE WITH DETAILS
GROUT TUBES: Grout Tubes are hollow components and are made of plastic or thin sheet metals. (Refer Fig.01) Grout tubes are cast into precast elements which create a void to locate and connect the elements (between two precast elements or in-situ to precast elements) together using starter bars or dowel bars. Once the elements are…
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DOWEL BAR WITH DETAILS
Dowel bars: Dowels are short straight steel bars and also cogged bars, used to provide mechanical or structural connection between two precast elements or in-situ to precast elements. (Refer Fig.01) (Fig.01) Dowel bars Purpose of Dowel bars: Dowel bars used to maintain the horizontal and vertical alignments of slab and precast panel. (Ref Fig.02) Dowel…
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STRUCTURAL CORE PLAN AND ELEVATION DRAWINGS STUDY
Core plan shows the core wall, shear wall and overall slab boundary. (Only if it is provided by separate structural engineer specifically working for cores & shear walls). Also, it’s shown the elevation number and viewing direction. (Only if it is provided by separate structural engineer specifically working for cores & shear walls) – Refer…
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ARCH STAIR PLAN DETAILS AND DRAWING STUDY
Stair or fire stair drawings are used to find the stair landing RL, landing slab set-out (X-axis distance), fire penetrations and stair pressurization riser details. (Refer Fig .01 & 02) This drawing package are provided by architect separately in arch consultant drawings. The main things for this drawing are to take the value of stair…
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ARCH ELEVATION DETAILS AND DRAWING STUDY
For Architecture elevation, mainly we used for door/window openings height and its location details. (If any other service drawings available means we have to consider that too). This elevation helps to take the FFL/SSL value of each level. It’s showing also the RL of parapet and roof level walls. For patterns, grooves and other elevation…
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THE USAGE OF NEAR FACE(NF) AND FAR FACE(FF) INDICATION ON SHOP DRAWINGS
Near face (NF): Near face is a front view of the precast wall. Far Face (FF): Far face is an outside view or trowel face or table face of the precast wall. Near face and Far face indication playing a major role on shop drawings to identify the component placing for factory people while manufacturing…
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RIGGING DIAGRAM AND IT’S USES
The rigging detailed diagrams are shown on shop drawings. (Ref Fig.01,02 & 03) The rigging diagrams are designed based on the precast panel profiles. It is indicating the lifting point position of precast panels for both factory and site. Erection engineer will be approved the rigging diagram details. The site people are preplanning to lifting…
