Architects

Architects plan and design buildings and other structures.

Architects typically do the following:

  • Seek new work by marketing and giving presentations
  • Consult with clients to determine requirements for structures
  • Estimate materials, equipment, costs, and construction time
  • Prepare, design, and structure specifications
  • Direct workers who prepare drawings and documents
  • Prepare scaled drawings of the project
  • Prepare contract documents for building contractors
  • Manage construction contracts
  • Visit worksites to ensure that construction adheres to architectural plans

People need places to live, work, play, learn, worship, meet, govern, shop, and eat. Architects are responsible for designing these places, whether they are private or public; indoors or outdoors; or rooms, buildings, or complexes.

Architects discuss with clients the objectives, requirements, and budget of a project. In some cases, architects provide various predesign services, such as feasibility and environmental impact studies, site selection, cost analyses and land-use studies, and design requirements. For example, architects may determine a building's space requirements by researching its number and types of potential users.

After discussing and agreeing on the initial proposal, architects develop final construction plans that show the building's appearance and details for its construction. Accompanying these plans are drawings of the structural system; air-conditioning, heating, and ventilating systems; electrical systems; communications systems; plumbing; and, possibly, site and landscape plans.

In developing designs, architects must follow building codes, zoning laws, fire regulations, and other ordinances, such as those requiring easy access by people who are disabled.

Computer-aided design and drafting (CADD) and building information modeling (BIM) technology have replaced traditional drafting paper and pencil as the most common methods for creating designs and construction drawings.

Architects also may help clients get construction bids, select contractors, and negotiate construction contracts.

As construction proceeds, architects may visit building sites to ensure that contractors follow the design, keep to the schedule, use the specified materials, and meet work-quality standards. The job is not complete until all construction is finished, required tests are conducted, and construction costs are paid.

Architects often work with workers in related professions. For more information on these occupations, see the profiles on civil engineers, urban and regional planners, interior designers, and landscape architects.


Carpenters

Carpenters construct and repair building frameworks and structures--such as stairways, doorframes, partitions, and rafters--made from wood and other materials. They also may install kitchen cabinets, siding, and drywall.

Carpenters typically do the following:

  • Follow blueprints and building plans to meet the needs of clients
  • Install structures and fixtures, such as windows and molding
  • Measure, cut, or shape wood, plastic, fiberglass, drywall, and other materials
  • Construct building frameworks, including wall studs, floor joists, and doorframes
  • Help put up, level, and install building framework with the aid of large pulleys and cranes
  • Inspect and replace damaged framework or other structures and fixtures
  • Instruct and direct laborers and other construction trade helpers

Carpenters are one of the most versatile construction occupations, with workers usually doing a variety of tasks. For example, some carpenters insulate office buildings; others install drywall or kitchen cabinets in homes. Those who help construct large buildings or bridges often make the wooden concrete forms for cement footings or pillars. Some carpenters build braces and scaffolding for buildings.

Carpenters use many different hand and power tools to cut and shape wood, plastic, fiberglass, or drywall. They commonly use handtools, including squares, levels, and chisels, as well as many power tools, such as sanders, circular saws, and nail guns. Carpenters put materials together with nails, screws, staples, and adhesives, and do a final check of their work to ensure accuracy. They use a tape measure on every project because proper measuring increases productivity, reduces waste, and ensures that the pieces being cut are the proper size.

The following are types of carpenters:

Residential carpenters typically specialize in new-home, townhome, and condominium building and remodeling. As part of a single job, they might build and set forms for footings, walls and slabs, and frame and finish exterior walls, roofs, and decks. They frame interior walls, build stairs, and install drywall, crown molding, doors, and kitchen cabinets. Highly-skilled carpenters may also tile floors and lay wood floors and carpet. Fully-trained construction carpenters are easily able to switch from new-home building to remodeling.

Commercial carpenters typically remodel and help build commercial office buildings, hospitals, hotels, schools, and shopping malls. Some specialize in working with light gauge and load-bearing steel framing for interior partitions, exterior framing, and curtain wall construction. Others specialize in working with concrete forming systems and finishing interior and exterior walls, partitions, and ceilings. Highly skilled carpenters can usually do many of the same tasks as residential carpenters.

Industrial carpenters typically work in civil and industrial settings where they put up scaffolding and build and set forms for pouring concrete. Some industrial carpenters build tunnel bracing or partitions in underground passageways and mines to control the circulation of air to worksites. Others build concrete forms for tunnels, bridges, dams, power plants, or sewer construction projects.


Forensic Science Technicians

Forensic science technicians help investigate crimes by collecting and analyzing physical evidence. Most technicians specialize in either crime scene investigation or laboratory analysis.

At crime scenes, forensic science technicians, also known as crime scene investigators, typically do the following:

  • Walk through the scene to determine what and how evidence should be collected
  • Take photographs of the crime scene and evidence
  • Make sketches of the crime scene
  • Keep written notes of their observations and findings, such as the location and position of evidence as it is found
  • Collect all relevant physical evidence, including weapons, fingerprints, and bodily fluids
  • Catalog and preserve evidence before transferring it to a crime lab

Crime scene investigators may use tweezers, black lights, and specialized kits to identify and collect evidence. In addition to processing crime scenes, they may also attend autopsies.

In laboratories, forensic science technicians typically do the following:

  • Identify and classify crime scene evidence through scientific analysis
  • Explore possible links between suspects and criminal activity using the results of chemical and physical analyses
  • Consult with experts in related or specialized fields, such as toxicology, about the evidence and their findings
  • Reconstruct crime scenes based on scientific findings

Forensic science technicians reconstruct crime scenes by carefully studying information gathered by investigators and conducting scientific tests on physical evidence. For example, lab technicians may look at photographs of blood splatter patterns and conduct ballistics tests on bullets found at the crime scene to determine the direction from which a shot was fired.

Forensic science technicians who work in laboratories use chemicals and laboratory equipment such as microscopes when analyzing evidence. They also use computer databases to examine fingerprints, DNA, and other evidence collected at crime scenes in order to match them to people and things that have already been identified. Most forensic science technicians who perform laboratory analysis specialize in a specific type of evidence analysis, such as DNA or ballistics.

All forensic science technicians prepare written reports that detail their findings and investigative methods. They must be able to explain their reports to lawyers, detectives, and other law enforcement officials. In addition, forensic science technicians may be called to testify in court about their findings and methods.


Civil Engineers

Civil engineers design and supervise large construction projects, including roads, buildings, airports, tunnels, dams, bridges, and systems for water supply and sewage treatment.

Civil engineers typically do the following:

  • Analyze survey reports, maps, and other data to plan projects
  • Consider construction costs, government regulations, potential environmental hazards, and other factors in planning stages
  • Test soils to determine the adequacy and strength of foundations
  • Test building materials, such as concrete, asphalt, or steel, for use in particular projects
  • Provide cost estimates for materials, equipment, or labor to determine a project's economic feasibility
  • Use design software to plan and design transportation systems, hydraulic systems, and structures in line with industry and government standards
  • Oversee, or participate in, surveying to establish reference points, grades, and elevations to guide construction
  • Present their findings to the public on topics such as bid proposals, environmental impact statements, or property descriptions

Many civil engineers hold supervisory or administrative positions ranging from supervisor of a construction site to city engineer. Others work in design, construction, research, and teaching. They work with others on projects and may be assisted by civil engineering technicians and technologists.

The federal government employs about 12,100 civil engineers to do many of the same things done in private industry, except that the federally employed civil engineers may also inspect projects to be sure that they comply with regulations.

Civil engineers work on complex projects, so they usually specialize in one of several areas.

Geotechnical engineers work to make sure that foundations are solid. They focus on how structures built by civil engineers, such as buildings and tunnels, interact with the earth (including soil and rock). Additionally, they design and plan for slopes, retaining walls, and tunnels.

Structural engineers design and assess major projects, such as bridges or dams, to ensure their strength and durability.

Transportation engineers plan and design everyday systems, such as streets and highways, but they also plan larger projects, such as airports, ports, and harbors.


Mechanical Engineers

Mechanical engineering is one of the broadest engineering disciplines. Mechanical engineers research, design, develop, build, and test mechanical devices, including tools, engines, and machines.

Mechanical engineers typically do the following:

  • Analyze problems to see how a mechanical device might help solve the problem
  • Design or redesign mechanical devices, creating blueprints so the device can be built
  • Develop a prototype of the device and test the prototype
  • Analyze the test results and change the design as needed
  • Oversee the manufacturing process for the device

Mechanical engineers use many types of tools, engines, and machines. Examples include the following:

  • Power-producing machines such as electric generators, internal combustion engines, and steam and gas turbines
  • Power-using machines, such as refrigeration and air-conditioning
  • Industrial production equipment, including robots used in manufacturing
  • Other machines inside buildings, such as elevators and escalators
  • Machine tools and tools for other engineers
  • Material-handling systems, such as conveyor systems and automated transfer stations

Like other engineers, mechanical engineers use computers extensively. Computers help mechanical engineers to do the following:

  • Produce and analyze designs
  • Simulate and test how a machine is likely to work
  • Generate specifications for parts
  • Monitor the quality of products
  • Control manufacturing and production

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