Grouting needle beam holes
Grouting needle beam holes
(OP)
Hi fellas,
I need to cut a 5m wide opening in existing precast wall.
Wall is 20cm thick (7cm concrete + 6cm styrofoan + 7cm concrete)
I suggested temporary shoring using needle beams spaced 70cm or so and "jacked" via regular steel post supports .
Do i need to specify some sort of special grout around beams before jacking the wall - I suspect contractor will probably cut larger irregular holes - and I am worried about wall cracking or wall layers separating.
Thx.
I need to cut a 5m wide opening in existing precast wall.
Wall is 20cm thick (7cm concrete + 6cm styrofoan + 7cm concrete)
I suggested temporary shoring using needle beams spaced 70cm or so and "jacked" via regular steel post supports .
Do i need to specify some sort of special grout around beams before jacking the wall - I suspect contractor will probably cut larger irregular holes - and I am worried about wall cracking or wall layers separating.
Thx.






RE: Grouting needle beam holes
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Grouting needle beam holes
I haven't spec'd grout either.
RE: Grouting needle beam holes
www.PeirceEngineering.com
RE: Grouting needle beam holes
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Grouting needle beam holes
Regarding grouting - Did you use some sort of special grout-like product (Sika etc.)?
Kootk, jayrod thanx for the input - I guess I did exaggerate with sloppines of the hole being made. I am a bit worried since the wall is composite (conc+styrofoam) that layers will separate.
RE: Grouting needle beam holes
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Grouting needle beam holes
www.PeirceEngineering.com
RE: Grouting needle beam holes
I ended up trough bolting some channels for extra safety.
Contractor cored round holes for needle beams and plugged wooden wedges inside.
RE: Grouting needle beam holes
www.PeirceEngineering.com