LIGHTWEIGHT CONSTRUCTION

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Presentation transcript:

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION PROGRAM OBJECTIVES: — Recognize lightweight construction — Identify the dangers of lightweight construction — Describe techniques of ventilating lightweight construction

LIGHTWEIGHT CONSTRUCTION CONVENTIONAL CONSTRUCTION: Conventional construction utilizes structural members that depend on size for strength. The greater the span for a structural member the larger it has to be to support a given load.

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION DEFINITION: Lightweight construction does not derive its strength from size. Is obtained from multiple members that are in compression and tension. Additionally, the strength of the individual structural member is dependent on the sum total of the other members; thus, if one member fails, other members may fail.

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION SIZE-UP Preplanning - Your district Onscene - Walk around structure sizing up old/new construction methods and, determine strengths and hazards by undressing the building in your mind

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION PLAN: Strategy and Tactics Life Safety Incident Stabilization Property Conservation TACTICS Search and Rescue Ventilation Fire Attack Forcible Entry Salvage etc...

LIGHTWEIGHT CONSTRUCTION IMPLEMENTATION

LIGHTWEIGHT CONSTRUCTION INDICATORS DWELLINGS Structures constructed in the last 20 years 2x4-inch rafter tails under the eaves COMMERCIALS Concrete tilt-up walls Fascias or “new style” buildings Flat roofs Buildings constructed in the last 20 years

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION STRUCTURAL MEMBERS USED IN LIGHTWEIGHT CONSTRUCTION: — Lightweight Beams — Wood Trusses — Metal Trusses — Flooring — Other

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION

LIGHTWEIGHT CONSTRUCTION KEY POINTS: Preplan your district, pay special attention to lightweight construction Size-up the scene, develop a plan, implement the plan, re-evaluate Communicate onscene types of construction and changes as they occur Risk vs. Benefit Great personal risk to save a life Least personal risk to save property

LIGHTWEIGHT CONSTRUCTION KEY POINTS CONT’D: Lightweight construction exposed to fire shortens the time to collapse Hotter fires and quicker response times lead to firefighters being at the scene during times of flashover and collapse Accountability with no freelancing is crucial. Know the plan, STAY TOGETHER LIVE TO FIGHT ANOTHER DAY