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4 votes
Accepted

What is the splice length for two reinforcement bars in tension of different diameter?

The use of the smaller diameter is theoretically correct. What is a splice? It is when tension force in a rebar is transferred to the concrete via adhesion and then to another rebar. Since concrete ...
Wasabi's user avatar
  • 13.1k
4 votes

How to structurally bind bamboo stems for loads?

Bamboo in its natural shape is very prone to splitting. Having any kind of hole will reduce its high bending strength resistance significantly. In addition, bamboo culm does not have a constant ...
Niaz's user avatar
  • 41
3 votes

How to provide lateral support for adjacent masonry during installation of steel UC in an old cavity wall?

Disclaimer - No contract exists between us. This post is provided as information and opinion only and does not form "advice" in any way. Although I am a Chartered Civil Engineer I have zero ...
AndyT's user avatar
  • 3,143
2 votes

How could an MGA's frame/chassis best be improved?

There are really two aspects to this: Will increasing roll stiffness improve handling to an extent which offsets any increase in weight by adding extra chassis members ? If yes, what is the best ...
Chris Johns's user avatar
  • 15.2k
2 votes

Percentage area of steel for a retaining wall - standard formula doesn't make sense to me?

I am not sure which guidance manual you are looking at, but it must in turn be referring to EN1992-1-1 section 9.2.1.1. This section defines the minimum amount of reinforcement in a beam or slab in ...
ingenørd's user avatar
  • 1,288
2 votes

Orthogonal to Orthoradial reinforcement

The fact that design of concrete slabs or beams uses straight reinforcing bars running orthogonally doesn't have much to do with the geometry of slab, beam or a deck, etc. It has to do with the fact ...
kamran's user avatar
  • 22.4k
2 votes

Rebar lap splice tail bend

Lap Splices: Lap Splice (left), Splice by Mechanical Coupler (right): You need to check the governing structural code of your local for rules and requirements.
r13's user avatar
  • 8,174
2 votes

Jointed reinforced concrete tie-bar smoothness

It depends on the type of the joint: The smooth dowel is used in an "expansion/contraction joint" to allow for free (lateral) movement due to thermal expansion/contraction of the concrete on ...
r13's user avatar
  • 8,174
1 vote

Help! How to cement plaster outer wall. If gap between the two walls are 1 feet only?

Depends on how wide your wall is. But there are pumps with small flexible hoses of 20 feet long. You can use a 20 foot pipe or handle and reach the spray nuzzle to the right space. Here is a link to ...
kamran's user avatar
  • 22.4k
1 vote
Accepted

Can a reinforced hose develop an internal restriction due to thermal expansion?

No, the zip tie and conduit won't cause the pipe to develop an internal restriction. Even squeezing the outer cover will not compress the inner sleeve... There are metal pipe clamps that will ...
Solar Mike's user avatar
  • 15.8k
1 vote

How to provide lateral support for adjacent masonry during installation of steel UC in an old cavity wall?

I would recommend a temporary shoring of the wall by attaching a vertical 3" x 6" board to the wall near the location of new column. This board will be attached to the wall by 5x 1/4 inch anchor ...
kamran's user avatar
  • 22.4k
1 vote
Accepted

How could an MGA's frame/chassis best be improved?

The overall stiffness of the frame is determined by the stiffness of the side beams augmented primarily by the three tubular cross members. An interesting academic exercise would be to evaluate how ...
Dave Tweed's user avatar
  • 6,884
1 vote

How to determine reinforcement design strip widths and locations

This question has no clear answer in its current form. The strip method is a lower bound approach (meaning that you approach the optimum solution from the safe side) based on beam analogy. So in ...
Mr. P's user avatar
  • 318

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