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CE A434 – Timber Design

CE A434 – Timber Design. Lecture #1 Course Policies Introduction Loads. Course Policy Overview. Class Website: http://soe.uaa.alaska.edu/soe/courses/ce434/ Review: Objectives, Prerequisite, Outcomes Course Policies Schedule. Design Loads.

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CE A434 – Timber Design

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  1. CE A434 – Timber Design Lecture #1 Course PoliciesIntroduction Loads

  2. Course Policy Overview • Class Website: http://soe.uaa.alaska.edu/soe/courses/ce434/ Review: • Objectives, Prerequisite, Outcomes • Course Policies • Schedule

  3. Design Loads • Many loads are determined as UNIT LOADS are typically computed on either a horizontal or vertical projection. • Unit loads are a representative APPROXIMATION of the pressure acting over a surface. • Total load and it’s distribution on structural elements can often be determined using unit loads and TRIBUTARY AREAS. • See the Beginner’s Guide to Structural Mechanics and the textbook for more information about tributary areas and load computations.

  4. Figure TA.7Girder Tributary Areas Girder 3, AB Girder 3, BC Girder 2, AB Girder 2, BC Girder 1, AB Girder 1,BC As you click your mouse, different tributary areas will be highlighted.

  5. Figure TA.7Column Tributary Areas Col 3A Col 3B Col 3C Col 2A Col 2B Col 2C Col 1A Col 1B Col 1C As you click your mouse, different tributary areas will be highlighted.

  6. Figure TA.10Tributary Areas Joist Areas Girder Areas As you click your mouse, different tributary areas will be highlighted.

  7. ASCE 7-05 • The standard document for determining loads on structures is ASCE 7. • Load Types: • D: Dead Loads • L: Live Loads • LR: Roof Live Loads • S: Snow Loads • W: Wind Loads • E: Seismic Loads

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