Construction Systems


PowerPoint Notes Student Notes Construction Systems Diagram Balsa Bridge Design Brief



Define Construction Technology

Effective use of materials, labor, equipment, methods, and management resources to produce a structure on site.

What is the most basic reason behind construction?

Shelter

List the Advantages and Disadvantages of Construction.

Advantages Disadvantages
Provides safer, more comfortable homes. Can pollute the environment through erosion.
Provides better transportation. Can ruin natural landscapes.
Provides utilities and sanitary systems. Can deplete natural resources.
Promotes economic development.


What are the 5 CONSIDERATIONS to selecting a building site?

  • Location
  • Cost
  • Accessibility
  • Physical Considerations
  • Zoning Laws

What are the 4 major types of construction?

  • Residential
    • To provide HOUSING. Normally wood frame buildings.
  • Industrial
    • To provide facilities for INDUSTRY. Large structures used primarily for manufacturing. Made of Steel, Concrete, Brick, and Glass.
  • Commercial
    • For COMMERCE and GOVERNMENT needs. Large structures used for business or education. Made of Steel, Concrete, Brick, and Glass.
  • Public Works
    • For PUBLIC WORKS Facilities. Construction that benefits society as a whole.


Describe and list some examples of each type of construction.

Residential-buildings are dwellings that people live in. These buildings can be single-family or multifamily dwellings such as mobile homes, apartments, condominiums, or personal homes. Multifamily units include duplexes and townhouses. A duplex is two apartments together under one roof. A townhouse is a two story single unit but usually is arranged beside other similar units. Townhouses are also referred to as row houses.

Industrial-structures, such as Factories or Warehouses, that are designed and constructed to specifications that meet the requirements of the processes conducted by the particular industry. For example, a foundry must have a large open space for gantry cranes and extremely huge exhaust systems. Concrete floors must be poured much thicker than in residential or standard commercial structures.

Commercial-structures that are used for business or government purposes such as Shopping Centers, Restaurants, City Halls / Capitol Buildings, Military Bases and Public Schools. Materials and techniques used in commercial construction are different from those used in residential construction. For example, building codes may require steel framing for public-use buildings to reduce fire risks. However, single family dwellings may only require wood frames due to the reduced wear and tear on the structure and the cost effectiveness. Architects, structural engineers, and sometimes civil engineers work on the design and construction of these sorts of structures.

Public Works-consist of structures intended for public use such as roadways, bridges, utilities, water, sewage, state parks power plants and water treatment facilities. These are the sorts of projects that civil engineers and structural engineers will work on.


List the 10 Residential Construction Subsystems.

  • Foundation
  • Floor
  • Walls
  • Roofing
  • Plumbing
  • Electricity
  • HVAC
  • Interior finishing
  • Exterior finishing
  • Landscape

Construction systems can be organized into subsystems of inputs, processes, outputs, and feedback. For example, for a foundation wall subsystem, the contractor is a human input, concrete is a material input, and a power screed is an example of a tool as an input. People are the most important input in a construction process. A variety of trades and occupations come together to complete the process successfully. The processes involved in the construction of a foundation wall include estimating its costs, forming, pouring, and screeding or masonry if it is made with concrete block. The outputs include a footing and a foundation wall that support the load of the structure. Among the feedback one can gain from the system, performing a slump test to make sure the concrete is of the right consistency is a common approach.

Below is a detailed account of the Construction Process.

  1. Preparing the Site
    • Surveying
    • Clearing
    • Laying Out
  2. Foundation
    • Footing
    • Foundation Wall
    • Concrete Slab
  3. Superstructure
    • Floors
    • Walls
    • Roofs
  4. Enclosing the Structure
    • Exterior Walls
    • Windows & Doors
    • Roofing
  5. Installing Utilities
    • Electrical
    • Plumbing
    • HVAC
  6. Finish Work
    • Drywall
    • Painting
    • Molding
    • Flooring
  7. Exterior Finishing
    • Painting
    • Gutters
    • Siding & Masonry
    • Driveway & Sidewalk
    • Landscaping


What are structural materials?

Materials used to support heavy loads or to hold the structure rigid.

List the structural materials used in construction.

Concrete, Lumber, Masonry, Metals and Other Materials.

Concrete is a COMPOSITE. It consists of:

  • Binder - Portland Cement (Clay and Limestone)
  • Water
  • Aggregate - Sand and Rocks (used to take up space.)
  • Admixtures - Colors, Accelerators, & Decelerators.

Lumber

  • Hardwoods vs. Softwoods
  • Dimensional Lumber - Used to build framework for walls, floors, and roofs.
  • Siding & Overhangs
  • Engineered wood materials
    • Engineered wood materials have been developed to help make the best use of our wood supply. For example, plywood, particle board, wafer board, and Oriented Strand Board (OSB) are engineered wood panels made by mixing woods from small, crooked trees that would otherwise be unprofitable to harvest.

Masonry

  • Bricks - Solid vs. Cored
  • Concrete Blocks
  • Mortar
    • Masonry Cement
    • Sand
    • Water
  • Masonry Siding

Metals

  • Steel
    • I - Beams
    • Steel Studs
  • Copper Wire
  • Re-bar - Concrete reinforcement.

Other Materials

  • Glass
  • Insulation
  • Drywall - a.k.a. Sheetrock or Wallboard
  • Asphalt Roofing
  • Flooring





Extra Credit Questions

What ancient leader was responsible for the very first building code and what did it say?

What are the 6 different types of bridges we discussed in class?

What is the world's oldest wooden structure?

Who received the largest land grant ever given to an English subject for only two beaver skins per year?

What is considered the largest house in the United States?

What is the legal term used to describe the right of the U. S. government to condemn private land for public use?

What place famous for its astronomical property values and mansions, was nothing more than bean fields in 1900?




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