Elements of Construction Drawings and Details

Construction drawings are extremely essential for proper design, development and commissioning of building and civil structures.

Construction Drawings must be drawn to scale by the drafters and shall present all the necessary details for compliance with local building codes.

For Residential Home Construction it may contain information of construction materials, location of retaining walls and sections, type of beam used, connections between floor and interior/exterior walls and others. 

Construction Drawings shall contain following details:

• Site Plan drawings: Shows location of construction site with dimensions
• Floor Plan drawings: Shows location and sizes of all windows, doors, partitions, retaining walls, beam, columns, stairs and others.
• Foundation Details: Shows Footing dimensions, RCC details, Drain layout sizes, Slab details, etc.
• Structural Drawings: Includes construction details for building framing, footing, pile foundation, chimney, stairs and other design elements along with their shop drawings.
• Roof Framing Details: Shows roof truss dimensions, type, sizes and locations.
• Mechanical Drawings: Shows type and size of hvac or duct systems.
• Electrical Drawings: Shows location and size of conduits, home appliances, lighting, burglar alarms and others electrical systems.
• Plumbing Drawings: Shows details of piping, drainage units, water distribution diagrams, etc.

Building Floor Plan should contain:

• Floor dimensions (interior and exterior)
• Columns, beams and floor joists locations
• Doors/windows/partition sizes
• Doors/windows/partition locations
• 2-3 storey identification

Roof framing Plan should contain:

• Framing design plans/layout
• Spacing between Roof structural members
• Geometry of structural members
• Roof member connection diagrams
• Truss engineering drawings
• Connection details

Construction details should Contain:

• Concrete wall and wood connection sections
• Concrete porch and wood frame connection sections
• Roof sections
• Related structural members

Above mentioned drawings may not all inclusive of the code requirements for a given construction. Additional drawings and specifications may be needed by the local building department to approve the proposed building project.

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Importance of Structural Drafter in Construction & Structure Design

The structural engineering domain is explicitly linked with the construction of buildings, complexes, industrial facilities and other civil structures.

Structural drafting is the process of preparing construction documents that clearly describe the components involved, their details and structural drawings.

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Basic Load Calculations in Concrete Structural Design

For any structural design load calculations plays an important role in the overall performance of building.

All structural components and connections along the load path must have adequate strength to resist wind or snow loads in a manner that will not hamper structural stability and serviceability.

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Basic Drawing and Design of Roof Construction

Roof construction detailing play important role in the performance of building roof system. The success of any roofing system depends on its detailed design at projections, junctions, sections and on the quality of its on field application. As a structure depends on its foundations for support, so does the roofing system depend on its base.

For structures, most materials used in the foundations are mostly stable and footings are rarely subject to extreme fluctuations in temperature.

On contrast, the base is not always stable and members used in roofing system are subject to extreme changes in temperature and humidity. 

Provision must be made during construction of the roofing system to facilitate adequate working clearance. When planning new construction, the designer must consider prospective replacement of the roofing system. 

Anyone involved with the roof system after the time of construction should be aware that whatever component is added to the roof surface must be added for future repairs or replacement. 

For corrections during renovation can be very expensive, sometimes costing 4 to 5 times what they might cost during initial erection to facilitate adequate clearance for future replacement.

Showing details on a relatively large scale allows the designer to visualize the construction of the detail and allows the contractor to determine exactly what is shown on the detail drawing. 

Small scale drawings sometime result in the contractor's use of imagination in the construction of the detail, and the roofing contractor's imagination sometimes inclines towards the easiest not necessarily the best method of construction.

Most of the times the designer expects the detail to be terminated or joined to an adjacent assembly. An isometric drawing will help the designer to visualize how each component fits into the overall detail and whether the provisions must be made for differing elevations at juncture points. 3D isometric drawings drastically reduce the risk of wrong interpretation by the contractor.

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Benefits of Revit Structural Shop Drawings And Drafting

Revit Structures is the most versatile and widely accepted CAD tool in Building and Construction industry today.

Using Revit Structural designers can create comprehensive parametric intelligent BIM, CAD models from hand-drawn sketches or rough CAD drawings.

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Role of Structural Engineer in Building Construction

A Structural Engineer operates in the field of civil engineering that is engaged in efficient design, construction and maintenance of residential and commercial buildings, bridges, civic facilities and various other structures.

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Shop Drawing Submittal and Review Issues

Shop Drawings Services and their review process play a crucial role in any construction process.

While there is no substitute for professional judgment, liability risks can also arise during submittal review due to failure to maintain a highly organized, efficient, and timely review process.

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Structural Drafting Services By CAD Drafters

Do you need structural drafting services that comply with your standards & specifications?

OSD Structural consulting firm specializes in providing quality, high-speed and cost-effective structural drafting services to its clients across the globe.

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