Discover the intricate details of constructing balconies, ramps, and shear walls through a detailed analysis of sheet S-503, focusing on slab sections and their specifics. This article provides a comprehensive understanding of construction plans and blueprints, highlighting various aspects such as rebar placements, welding instructions, pore strip maintenance, and more.
Key Insights
- The article discusses various elements of balcony construction, including the varying lengths and the downward slope of the slab. It also mentions the use of epoxy-coated rebar to prevent rusting and the incorporation of a blockout for railing installation.
- In the construction of pore strips, the article underscores the importance of leaving the pore strip open for a minimum of 28 days after concrete placement on each side. It also stresses the necessity of full shoring on each side until the pore strip has reached its design strength.
- The piece elaborates on the construction of shear walls and their reinforcement, emphasizing the role of rebars and hooks in maintaining structural integrity. It also covers the construction of suspended CMU masonry walls and the incorporation of tenons at ramps.
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Let's review sheet S-503, slab sections and details. So let's begin by looking at the typical details at the balcony. You can see the centerline of the structural grid.
You'll see that the length varies by balcony. You'll notice that the top of the slab slopes down, so we have the length from the centerline to the face. The balcony slopes down a half an inch from the face of the column to the exterior face.
They're saying that the rebar right through here on the front on the U is all epoxy coated because we don't want to have those rebars rust. There's a note here, three and a half by three and a half by three inch deep blockout at rail post, so this way they can put the balcony railing. And you can see too that they have a bent rebar in through here.
There's a typical detail at a pour strip. You can see the rebar. You can see the tenons.
You can see how it's being connected together. There's also a note that's saying pour strip shall remain open for a minimum of 28 days after placement of concrete on each side of pour strip, and then slab shall remain fully shored on each side until pour strip is cast and has reached 100% of design strength. These are transitions at the ramp.
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So again, you can see the bent rebar, and you can see that we're adding additional strength here and at this point, and we have our class B lap typical here, here, and here, and here using bent bars. We have the shear walls. So this is a typical slab reinforcing its shear walls next to openings.
So again, this is the shear wall. Here is the opening, and it's talking about the rebar with the hooks that are number fours. We have other rebars, and they're saying go to the shear wall plan.
Typical slab reinforcing its shear wall, and so they're saying number four. We have a section at a suspended CMU, masonry wall. So you can see that there's a plate here that's buried into the floor above.
Here are welding instructions. Here's a bond beam, bond beam down here. Here we have a section at tenons at ramp.
So again, they're showing the connections that are going on here. Banded ET cables, see plan for quantities and ordinance. Here's a shear wall, and here's a column, and it does have a note that says rebar not shown, and that's the last of the details that are on this sheet.
So let's go on to our next drawing.
