COMMUNITY FORUM

cadman

08:41AM | 04/21/99
Bvmisc
Please Help !

I am in the process of refininshing my basement. I would like to remove one (preferably two) lally columns. The foundation measures 24' x 42' (exterior), all floor joists are 2x8's; main beam is 3) 2x8's spiked together; knee wall is stick built 2x4 construction; lally columns about 6'-11" apart (5 of them).

My plan is as follows:
1) Have head room to add 2) 16'- 2x12's to both sides of beam (6'-8" headroom under).
2) Add bearing wall from 15'-3" to next post (@ approx. 21' [CL] point along main beam).
3) According to tables I've read, span for 4) 2x12's (from memmory, don't have tables handy) is about 12'9".

My question(s), If I were to support gable end of beam by the foundation thickness (~10"),
and leave existing beam in place, and bolt through all 7) 2x's [2 rows staggered, 3 1/2" apart, @ 16 o.c.) and attach together with 1/2" hardware, can I extend new beam to about a 15'-3" span and remove the two columns, (or only the first one) and still maintain the required structural support for the floor above (Split level home).

According to some old (1940/50's vintage) Audel books I've read, and doing some quick Pcs calculations found there, I should be able to. Don't really know for sure. Would like a little back-up.

If my idea is not valid as it stands, any other suggestions as to how you may have solved a similar situation?

Thanks in advance,
cadman

Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

Anonymous

Post_new_button or Login_button
Register

To make this reflective design, pour water into a mason jar until it is about three-quarters full then add a small sprig o... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled entryway will get you in the outdoor mood. Grab your coat... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR carpet tiles are a simple and affordable way to customize a floor covering for any space. You can make anything from ... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... The vibrant green of Granny Smith apples make a beautifully natural alternative to the traditional evergreen wreath. Brigh...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon