question 2: what do you think of the building plate reinforcement diagram? As shown in the following figure:
The reinforcement in the middle of the drawing is negative reinforcement (full name: negative moment reinforcement), the reinforcement on the left side is 18 in diameter, with a spacing of 2, and the reinforcement on the left and right sides of the axis is 22, and the reinforcement with a diameter of 16 and a spacing of 15 is stress reinforcement, with the length as usual. Plate reinforcement and distribution reinforcement, which are not shown in your drawings, are perpendicular to the stress reinforcement and bound with each other to form a reinforcement skeleton. Simply put, there are three kinds of general plate reinforcement: stress reinforcement, negative reinforcement, distribution reinforcement, special ones such as roof, and additional temperature reinforcement.
question 3: how do you think the reinforcement of the slab is the upper reinforcement or the lower reinforcement? In the construction drawing, upper and left are used to indicate lower iron, while lower and right are used to indicate upper iron, and according to the actual situation of one-way and two-way slabs, it can be divided into full-spread upper iron and bearing upper iron (taking 1/4 of the span in the stress direction)
Question 4: What do you think of the reinforcement of the building slab (with pictures)? This is the reinforcement at the bearing of the slab, such as the leftmost representative, grade 3 steel with a diameter of 18, with a spacing of 2 on both sides. On the drawing, the opening down or to the right represents the upper reinforcement of the slab, and the opening up or to the left represents the reinforcement of the lower part of the slab. For example, the leftmost one is the upper reinforcement. At present, the boards are all double-layered and bidirectional, with one layer above and one layer below. If you don't understand, ask me again ~
Question 5: How to distinguish whether the reinforcement of the slab is upper or lower on the drawing? The straight hook is the upper part, and the 135-degree hook is the lower part
Question 6: What do you think of the reinforcement diagram of the plate? The thick red line of 5 points indicates the upper reinforcement at the plate support, the above value indicates the reinforcement amount, [email protected] indicates the reinforcement diameter of 7 and the spacing of 1, and the following number indicates the length without edges. How can there be a steel bar with a diameter of 7? Inexplicable)
The thick brown line indicates the long reinforcement at the bottom of the slab, and the above value indicates the reinforcement amount.
question 7: what do you think of the beam reinforcement diagram? I can't see the picture clearly, but I can guess:
1. The numbers above and below the beam indicate the upper and lower reinforcement, 24*4 indicates the size, φ 8 @ 1/2 (2) indicates the spacing of 2, and the encrypted area is 1,(2) indicates.
2. KL 1 (6)
24 * 7
φ 8 @ 15/2 (2)
2 φ 2
indicates a frame beam, (6) indicates 6 spans, with a size of 24, a width of 7 and a stirrup spacing of 2, and an encryption area of 15.
Third, C4 φ 14
You should be mistaken, it should be G4φ 14, which refers to structural reinforcement, which is usually added when the web is greater than 45.
are you satisfied now? ! Hehe, I'm Tang Haichao, QQ26189766
Question 8: What should I think of the size of the cover rib of the reinforced plate? My suggestion
The most basic thing you should do is
often buy a book of steel workers, which is old and ok
or an old one > Look at the small magazine
Your problem is solved immediately
Question 9: How to identify gluten or bottom reinforcement in the plate reinforcement diagram? Look at the formula of steel bar hook
If the drawing is pressed up north and down south, left west and right east, then
the steel bar hook faces north, west is bottom reinforcement
The steel bar hook faces south and east is gluten.