1 / 15

Architecture

zan
Download Presentation

Architecture

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Architecture Intro to Floor Joist and Sub flooring

    2. What are Floor Joists? They provide support for the floor Their sizes range from 2x6 to 2x12 Their spans (how far apart they are spaced) range from 12” to 24”

    4. Their size depends on 4 concepts: Length of the space to be covered Load to be supported Grade of the wood (specie of wood) Distance joists are spaced Normally 16” O.C.

    5. Different types of Loads on floors Live load– the weight from non stationary things…..people, beds, dressers, etc Live load weight is 40 lbs. Square foot Dead load—the weight from stationary items…..walls, chimneys, windows, etc Dead load weight varies

    6. What is a Load Bearing Wall? A wall that holds the weight of the house Concrete Block wall Cast concrete Frame construction

    7. Stairs and Chimneys They require more support, so double joists are used for the openings Pg 197 fig. 11-10

    8. Cross Bridging This can be used on plain wooden trusses to keep them straight over the years. (strengthen the joists) Not normal today with special types of joists being made

    10. Cantilevered Joists Produces an expanded floor space without the expanded foundation plan—garrison style house Twice the overhang must be on the inside Pg 201 fig. 11-18

    12. Sub Flooring Usually ˝ “ 4’x8’ sheets Plywood grain direction at right angels to the joists Stronger Staggered Expansion joints

    13. Sub Flooring Cont. If they are glued and nailed they create: Stronger Squeak free structures

    14. Platform Framing Sill is the starting point Supports joists Normally a 2x6 Header joist all the way around The joists flush against header sitting on sill Then the sub floor is placed on top of joists

More Related