hello PHM!

POST & FOOTING:

20 x 20 cm ang mga poste... or increase ko pa sa 30 x 30 cm???

12 mm vertical reinforcement (or pwede gumamit ng 20 mm??o overkill na?) para sa mga poste at 10 mm rebar para sa stirrups. ang tanong ko dito ay kung ano ang stirrup spacing sa may malapit na sa footing?

tapos ano ang spacing ng steel reinforcement sa footing ng poste?

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My say to this :

First, what is the height of your proposed concrete fence ?

Make the skeleton (re-bar reinforcement, stirrup rings) of your post 20 X 20 cm and the forma nosing of 2", you'll end up having a 10 x 10 inch post to support your free standing 5" thick fence.

For the vertical reinforcement you may use the 12 mm or 16 mm corrugated bars, 20 mm is too over kill. For the stirrups or sing-sing, its usually the 10 mm corrugated steel bars.

And for the steel reinforcements, spacings of the rings starts with 15 cm (6") apart and then 30 cm (12") onwards.

For the footing, ang parilya mo ay 60 x 60 cm using 10 mm steel bars with 2 inside bars, vertical and horizontal w/ spacing of 20 cm apart.
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WALL FENCE & FOOTING::

5 inches CHB ang gagamitin

10 mm rebar para sa horizontal at vertical reinforcement ng wall fence

pagdating sa footing ng wall fence, ano po ba dapat ang spacing naman ng steel reinforcement? {yung vertical ties (stirrup pa rin ba tawag dun?) at yung horizontal reinforcement}

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My say to this :

Spacing of each post is 3 meters apart, now the footing of the CHB will be 2pcs of 10 mm bars, 6" apart to be placed on the trench with the concrete mix. The 2 pcs of horizontal bars will also be fitted with 6" connecting bars at 30cm apart. lalabas sya na parang maliit at mahabang hagdan.

Vertical reinforcement is placed 1 meter apart using 12 mm corrug. steel bars, the end part tied to the wall fence footing.

Horizontal bars are placed after each 3 pieces of CHB has been placed pataas (kamada) using 10 mm corrugated steel bars.
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maraming salamat!

Hope this helps !! :attack: :whistle:

napakaraming salamat sir rosy!

actually fino-"foreman" ko yung work online. nasa south luzon ako at the moment kasi nasa north luzon yung project. pinapakita na lang yung design via pictures sa mga karpintero.

BTW, 3 meters ang post height mula sa ibabaw ng post footing.

yung isang wall is 2.6 meters ang height mula sa ibabaw naman ng fence footing.

tapos yung natirang 2 wall fence ay 1.6 meters lang dahil lalagyan ko ng steel fence after the masonry work.

Vertical reinforcement is placed 1 meter apart using 12 mm corrug. steel bars, the end part tied to the wall fence footing.

Hope this helps !! :attack: :whistle:

hmmmm.....papano po tina-"tie down" yung vertical reinforcement sa footing reinforcement? ibend yung dulo tapos itie down sa connecting bars?

hmmmm.....papano po tina-"tie down" yung vertical reinforcement sa footing reinforcement? ibend yung dulo tapos itie down sa connecting bars?

Yup, that is how it is always done and the bended corr. bar measures 10 cm, hinde kuna ibinigay ang detalye kasi alam na yan ng kantero na gagawa. By the way with regards to the reinforcement steel bars in the trench, the tie in bars will measure 6" plus additional 2" bended on both ends na parang semi letter U or V.

ilan po ba ang lalim ng trench ng column footings and ChB wall? gaano kalalim yung hukay ng posted at CHB wall?

From the ground surface, lalim ng post or column footing is 1 m or 1.20 m. For the CHB footing, trench will be
0.50 m kung two CHBs ang naka baon.

fencing project lang yung ginagawa ngayon, parang andami ko nang frustration pagdating sa crew. pero patience lang dahil mahirap din maghanap ng laborer.

una, binigyan ko na ng drawing....pinakasimpleng drawing na nalalaman ko para lang hindi magkalituhan. nagkaproblema pa rin! yung hinukay para sa post at wall footing halos sakto lang dun sa dimension ng rebars. wala nang allowance na minimum 7.5 cm cover to steel.

buti inabisuhan ko nanay ko at anak ko na picture an bago buhusan.

isa pa yung sa corner post, nasa dulo ng steel mat yung poste hindi nakasentro. pero hindi naman nila totally fault ito. pinakiusapan ko lang kapitbahay na iadjust lang yung hukay para sumentro lang yung poste sa steel mat.

kaso ganun din pala ginawa nila sa front corner post kung saan wala namang problema sa espasyo.

sa steel reinforcement sa parilya, nilagyan ko lang ng 1 inch na bend sa dulo. ang nabasa daw nila 10 cm. maygad! maeexpose na yung dulo ng rebar.

bakod pa lang ito, papano na lang kung buong bahay na. kaya nagtataka ako, ilang bahay na kaya nagawa ng mga ito na ganito ang kanilang mga rule of thumb.

kelangan talaga ang personal supervision. well sa huli, pinakiusapan ko na lang (via phone) ng mahusay. i still have to treat them well para mahusay pa rin kahit papano yung ibibigay na trabaho.

OK thanks! try to get a client for fencing project at least may idea n aq mangontrata nalang. try and try...hehehehe