Lecture 7: Drawings Flashcards
The contract documents prepared by the
A/E or the designer includes but is not
limited to:
- Drawings
2. Specifications
Pre-drawing activities are also called what phase?
Conceptual phase
What drawings do the owners give their approval during?
Schematic drawings
Working drawings are also called what?
design development
What are the three phases for drawings being developed?
- Conceptual phase
- Schematic drawings
- Design development
- Are a method of communicating ideas in a graphic form
between different project parties. - Are the basis for measurement of quantities, and a visual
description of the scope of work - They convey the design intent and may show multiple
views
Drawings
What are the five things drawings must include?
- Location
- Identification
- Dimension and size
- Details and diagrams of connections
- Shape and form
- The A/E should start with a comprehensive
program stating the needs, functions, and
parameters of the proposed project. - An estimate of the number of sheets
needed will be prepared at this early
stage. - Ends with the owner’s approval and a
green light to proceed with design after
ensuring the objectives are met.
Pre-Drawing Activities
- Follow the first approval by the owner
- Starts with a DFR (Diagram of functional
Relationships) - Include schematic or outline drawings
- Should suggest as many feasible alternative solutions
as possible. - End with the second cycle of owner approval (Concept approval to start working drawings or design development DD).
- Good time to start VE efforts
Preliminary Drawings
Schematic or outline drawings which are:
- Single line drawings.
- Have minimum details.(minimum dimensions)
- Usually include free hand sketches and/or 3D models.
- Second cycle in the development of the design process
- Present a complete picture of the proposed project.
- Contain detailed dimensions.
- Contain details (Larger scale drawings).
- Used to obtain proper permits.(2 sets)
- Used by general and specialty contractors (as part of the bid documents) [Takeoff, pricing, etc.]
- Owner, A/E, and contractor will use them as reference during construction phase.
Working Drawings (Design Development)
Working Drawings must have the A/E’s seal of the design professional (For liability issues). This professional could be:
- Land surveyor
- Engineer (Different disciplines)
- Architect
- Etc.
How are sheets in Working Drawings ordered?
Sheets are ordered and numbered based on the construction
sequence (Site work, Structural, Mechanical, Electrical, Finishing,
Landscaping, etc.)
Three types of submittals
- Data Sheets
- Shop Drawings
- Samples
1. Third cycle in design development (Most detailed drawings). 2. A further detail based on the working drawings. 3. Prepared by GC (Responsible for accuracy and correctness), subs, suppliers, or manufacturers, and approved by A/E. 4. Examples include: a. Steel Connections b. Equipment installation procedures c. Formwork or falsework d. Rebar details
Shop drawings