Browse Forums General Discussion 1 Jul 31, 2015 9:00 am Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Structural Engineer..Details, Photos, Q&A? 3Aug 01, 2015 10:22 am Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 7Aug 01, 2015 12:38 pm Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 8Aug 01, 2015 1:34 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 12Aug 10, 2015 11:46 am Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 13Aug 10, 2015 6:30 pm Hi StructuralBIMGuy, I write further to my thread "Extra Slab Costs due to 2m of Controlled Fill" To recap : I am building a 22sq single story house on recently developed vacant land in the Keysborough area of Melbourne. I have just received a contract from the builder which includes an item for an Engineer designed concrete waffle slab (Class P) of $10K. The Soil Test report classifies the site as ‘P’ due to the depth of filling encountered. Fill was encountered to a depth of 2000mm, 2200mm and 2100mm respectively in the 3 bore holes. My question is : Is $10K a reasonable price for the upgrades involved ? The builders breakdown of the costs are as follows : 1. Upgrade slab to 385mm overall height including additional concrete, 300mm high waffle pod and Upgrade slab steel including 1-N12 to internal rib, 3-L12 to external rib and additional N12 to top of external rib in lieu of Class M with 310mm overall height, 225mm high waffle pod and steel consisting of SL72, 1-N12 internal and 3-L11 to bottom of external – Charge $4,490.00 2. Concrete bored piers to the Garage. Note: We have minimum charges from our concrete contractor for them to make special trip to site to complete piers – Charge $1,575.00 3. Extend concrete waffle pod slab into the Front Porch and Outdoor Living to accommodate soil reactivity as noted in the Soil Report – Charge $3,605.00 The following are the slab specifications : Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Your comments / thoughts would be greatly appreciated. Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 14Aug 10, 2015 7:25 pm Hi Belongabank The extra over is pretty easy to work out and check and from the information you have provided I suggest you do check them. How 1. Determine what was allowed in the original price 2. From your floor plans (not provided) you will need to work out l/m, m^2 (Areas) and m^3 (Volumes) 3. In AS 2870-2011 figure 3.4 lists a simple to follow table for waffle raft based on Site classification, Type of construction, Data for beams and slabs ie concrete and rebar 4. Use a spreadsheet to calculate the extra-over and apply realistic rates and builders margin 5. This will provide you with the information you need to evaluate the extra costs Please leave a PM for further assistance Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 15Aug 10, 2015 9:38 pm StructuralBIMGuy Hi Tomcat IMO that overhang will need to be repaired This will depend on whether or not you intend having a path/sloping apron around the perimeter? Also do you have the original engineering drawings/details for the edge beam/footings? Thank you Yes engineering plan is here: https://mmmanderine.files.wordpress.com ... report.pdf Our soil is E-D P - extremely reactive clay with uncontrolled fill. We levelled our block (built up at back). We do intend to have a 1 metre wide concrete path around perimeter to protect slab from surface water. We did a little research and found suggestions of fitting angle iron to the slab to support the overhanging bricks. My husband is mechanically minded (not an engineer of course) and he thought this sounded reasonable if the angle iron was galvanized and say at least 5mm thick. What do you think though please person of knowledge ... aka Mr Structural Engineer Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 16Aug 10, 2015 10:05 pm Hi Tomcat There are probably a few ways you could support the brick overhang but I am not sure if I would go with a galvanised angle in contact with the ground Irrespective of what the ground pH levels are like? Since the builder is responsible for the fix, I would be leaning more towards a concrete ledge incorporating the path perhaps (just a thought)? Does your contract have your builder putting in the concrete path by chance? Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 17Oct 18, 2015 10:52 pm Hi StructuralBIMGuy appreciate your opinion on the below support beam(s) that support our first level addition (masterbedroom that is supported over deck area) and also the welding used for the galv posts. The picture was taken approx. 3-4 weeks after install and has remained exposed for approx. 8-9mths as the reno is not yet complete!!! thanks in advance oh the engineering plans advise the beams were to be 200 UB 22 Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 18Oct 19, 2015 9:22 am Hi Chica Unfortunately. the photos aren't visible?, and sometimes when they are they may be difficult to analyse Also can I request the photos be taken a particular way as follows (which makes its easier, thanks 1. Photos depending on where they are taken from should be top or bottom Isometric, also front on elevation if possible 2. Site photos should include a wide shot showing the entire member, eg entire beam and close ups of the support eg wall supports, joist connection and any members that you think are relevant 3. Include a reference scale eg tape measure in the photos 4. A photo of the plan or sketch of the room where the beam sits also include a scale &/or Dimensions. eg Span between supports walls 5. My engineering details (3D) in most cases can be matched to your photo view Some examples are here on my Google+ account . BTW you will need a Google account, gmail, etc to access https://plus.google.com/u/2/communities ... 2205285216 Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 19Jun 18, 2016 5:00 pm Hi StructuralBIMGuy
Just want to ask you please about demolish and build of a new single dwelling development next to our house. DA copy sent to us,noted that the fill is 450mm and retaining wall to be built by client. Now that the house and the retaining wall are completed, we noted that the retaining wall at its highest is 900mm. Could this possibly happen legally? Also, the boundary fence is not on top of the retaining wall but beside it on the lower level. Our fence which is 1800mm is effectively now 900mm. As a result we have now problems with privacy both visual and acoustic. There are 2 windows from their house, that look straight into our veranda and no privacy screening was required. Is this legal? Sunlight coming to our veranda had also been reduced by the added height of the fill. What are the rules about privacy? We are in NSW. We approached the council and they informed us that the noncompliance is just minor and no action required. Yesterday we also found out that no DA was given for the construction of the retaining wall yet from what we read, a structural engineer is required to approve the job if it is above 600mm. What can we do? Any suggestion would be very much appreciated. Note: StructuralBIMGuy Apology for the mistake of addressing it to a wrong person. Re: Structural Engineer..Details, Photos,Help Needed, Q&A? 20Jun 19, 2016 12:54 pm Thanks for the generous offer StructuralBIMguy. Here are some questions relating to my new timber framed house I'm currently designing and planning to owner/build in central QLD. It's on the coast, remote site, steep slope (average pier height 2.4m), soil type S, wind rating C4, fire rating BAL19. (1) do you have a recommendation on a steel subfloor system to use ? (I've looked at Stratco, Stramit/SteelMax, Spantec, OneSteel Duragal.) (2) I favour steel subfloor over timber subfloor so I can get longer bearer/joist spans for the same price. Is my reasoning correct? (2) re timber rafters & beams: for similar section sizes are LVLs stronger than LGLs and solid timber? (3) do you have a recommendation on how to protect a steel sub floor system against corrosion on the coast? (I'm currently planning to paint it with Ormonoid SilverShield bitumen paint.) (4) re bracing & strength: would a 120mm timber stud for external walls offer any significant advantages over the traditional 90mm stud? (I'm guessing it would but by how much ?) 3 6389 The engineering is the engineering. It's irrelevant how much material you have. Unless it fits the requirements of your design the engineer can't "make"it work. You might… 7 9656 |