radii high top sneakers-Count the amount of the basic methods of reinforced

-] Count the amount of the basic methods of reinforced steel
count the amount of the basic method
count the amount of the basic methods of reinforced
Chapter beam

a frame beam section, the calculation of the first cross bar
1, the upper part of the upper linking bar
through tendons (tendons on the long pass 1) length = length + pass across the net cross-bearing anchor the first end of the value of
2, end bearing negative reinforcement
side bearing a negative muscle length: the first row Ln / 3 + end bearing anchor value;
second row for the Ln / 4 + end bearing anchor value
3, the lower part of the lower steel reinforcement
clear span length = length + about bearing anchor value
Note: the lower points behind bars regardless of whether or not the calculated result is the same, so we marked the lower part of the beam longitudinal reinforcement can not enter the sub-row of information.
above three types of steel bearing anchor in question are involved, then, is how the software 03G101-1 on the bearing anchor to judge it?
Now we come to sum up the above three types of steel bearing anchor to determine the problem:
bearing width ≥ Lae and ≥ 0.5Hc +5 d, for the straight anchor, taking Max {Lae, 0.5Hc +5 d}.
end bearing steel anchor value = bearing width ≤ Lae or ≤ 0.5Hc +5 d, the anchor bend, take the Max {Lae, bearing width - the protective layer +15 d}.
intermediate bearing steel anchor value = Max {Lae, 0.5Hc +5 d}


4, lumbar muscle
structural steel: structural steel clear span length = length +2 × 15d
torsion bar: the algorithm with the linking bars
5, stretching
reinforcement length = (-2 × beam width of the protective layer) +2 × 11.9d (seismic hook value) +2 d
stretch root number: If we do not enter the square law given stretch of the fabric reinforcement spacing, then the stretch of the root number = (number of stirrups root / 2) × (number of structural reinforcement root / 2); if given a stretch of the cloth reinforcement spacing, then the root of the number of reinforcement bars = length of cloth / fabric reinforcement spacing.
6,
stirrup stirrup length = (beam width protective layer + -2 × -2 × protective layer high beam) +2 × 11.9d +8 d
stirrups root number = (encrypted zone length / encrypted area spacing +1) × 2 + (non-encrypted area length / non-encrypted area spacing -1) +1
Note: Because when the protective layer component deductions are deducted to the longitudinal reinforcement of the skin, then we can find,new radii shoes, pull bars and stirrups were in each layer of protection at a diameter of more than minus value; and we are reinforced in the budget calculation of length, are calculated according to the skin, so the software will automatically deduct more than the length of the supplementary return, As a result, an increase of the calculation stretch 2d, stirrup calculation increased 8d. (Shown below)


7, hanging bars
hanging anchor reinforcement length = 2 * length +2 * + times oblique beam width +2 * 50, which box beam height> 800mm angle = 60 °
≤ 800mm angle = 45 °
Second, the calculation of the middle cross bar
1, the middle of the middle bearing negative reinforcement
bearing negative reinforcement: the first row of the Ln / 3 + intermediate bearing value + Ln / 3;
second row for the Ln / 4 + intermediate bearing value + Ln / 4
Note: When both ends of the middle cross-bearing negative reinforcement extends the length of the inter-net and ≥ span, its bar length:
first row of the inter-net span + (Ln / 3 + pre intermediate bearing value) + (Ln / 3 + after the middle bearing value);
second row for The inter-net span + (Ln / 4 + before the middle bearing value) + (Ln / 4 + after the middle bearing value).
other steel cross bar calculated with the first calculation.
Third, the end of the first cross bar cross bar similar to the calculation
calculated

four cantilever cross bar calculation
1, reinforcement
software with 03G101-1, there are six in the software forms of cantilever steel, as shown below


here, we 2 #, 5 # and 6 # steel, for example for analysis:
2 # steel - on the cantilever tendons pass = ( through cross-) beam clear span length + width + height + secondary beam inside the 50mm steel beam from the second bend -4 protective layer from the steel of the ramp section + length + lower beams of steel anchor into the anchor value
5 + bearing # rebar - steel on the men row = Ln / 4 + bearing width +0.75 L
6 # bar - lower steel = Ln - protective layer +15 d
2, stirrups
(1), if cantilever cross-section of variable cross-section, then we must also enter the root end of the section size and high beam, which mainly affect the beam cross-section of the stirrup length calculation, the upper bar, when there is a long ramp, inclined section of the highly and the length of the lower bar; variable cross-section if the situation did not happen, we need only
(2), root of the cantilever is calculated stirrups should not subtract the width of the second beam; revised version of the 03G101-1 according to the 66. Section


other beam
a non-frame beam
In 03G101-1, for non-frame beam reinforcement simple explanation, dealing with different frame of steel beams lies:
1, ordinary beam stirrups settings no longer distinguish between encrypted and non encrypted area district issues;
2, lower longitudinal reinforcement anchored into the bearing only 12d;
3, the upper longitudinal bar anchored into the bearing, no longer consider 0.5Hc +5 d to determine value.
not entirely explain the instructions refer 03G101-1.
Second, the box beam
1, box beam of the bearing negative reinforcement extends the length of the Ln / 3;
2, the lower the value of longitudinal reinforcement dealing with the side bearing anchor frame beam;
3, the first row of the upper longitudinal bar anchorage length of reinforcement side bearing = bearing width - the protective layer + beam - protective layer + Lae, the second row of reinforcement anchorage length ≥ Lae;
4, the central tendon stretch Liang Liang straight anchor end of the level, and then lateral bending 15d;
5, stirrups encryption range ≥ 0.2Ln1 ≥ 1.5hb;
7, side of the structural steel frame with torsion bar to deal with the same beam.
Chapter wall
calculation of quantities in the steel wall is the most difficult calculation of the components embodied in:
1, shear walls, including walls, wall beams, Qiang Zhu, hole, we must consider their entire relationship;
2, shear walls are at right angles to the plane, T-angle, cross-angle, oblique angle of rotation forms;
3, shear walls in the facade There are a variety of hole;
4, there may be a single row of reinforced walls, double, multi-row, and may be different for each row of steel;
5, Qiang Zhu combination of a variety of stirrups;
6, even to distinguish between the top beam and the middle layer, based on the location of the hole there are different methods of calculation different.
need to calculate the amount of engineering



a section shear walls, the level of shear walls of reinforced


1, the wall side dark column when
A, lateral reinforcement pass through the outer wall of reinforced length = length - steel protective layer
= wall length inside - the protective layer + bending
B, lateral reinforcement does not pass through length = length of reinforced outer walls - inside the protective layer +0.65 Lae
bar length = wall length - bent
protective layer + dark Zhu and wall level with flat steel


root number = story / distance +1 (dark beams, with beams reinforced wall according to the level set)
2, the wall side to side column when
A, lateral reinforcement bars pass through the outer wall of a long length = - protective layer
inside wall of steel net length + = anchorage length (curved anchor, straight anchor)
B, lateral steel reinforcement does not pass through the outer wall of length = length - the protective layer +0.65 Lae
the inside wall of steel net length = length + anchorage length (curved anchor, straight anchor)
number of roots =-storey reinforced the level / distance +1 (dark beams, with beams reinforced wall according to the level set)
Note: If there are multiple rows of vertical shear and horizontal steel bars, one horizontal bar at the corner between the anchor measure with the level of the tendons of the medial wall of the anchor structure.
3, when the shear walls have holes
side wall


Zhu prominent shear walls when there are holes, the walls of the horizontal bars on both sides of the hole cut, respectively bending down to 15d.


Second, the vertical shear walls reinforced
1, first floor walls of the longitudinal reinforcement based Reinforcing + length = + stretching from the upper storey floor overlap length
2, the middle layer of the wall longitudinal reinforcement length = + stretching from the upper layers of the high overlap length
3, the top layer of the wall longitudinal reinforcement length = clear height + top vertical wall reinforcement anchorage length
net root number = wall length / distance +1 (vertical bars from the walls of the dark columns, arranged side started the column side 50mm)











no change in the middle section of the middle-tier layer of variable cross-section




top of the top interior wall
4, shear wall walls have holes,radii high top sneakers, the walls of the upper and lower vertical bars on both sides of the hole cut, respectively, lateral bending 15d.


three walls stretch
1, length = thickness of the wall - the protective layer + hook (hook length = 11.9 +2 * D)
2, root number = wall Net area / stretch the layout area
Note: the net wall area is simply less dark (side) column, dark (even) beams, ie the wall area - total area of ​​openings - the dark columns sectional area - dark beam area; < br> area is the stretch of gluten × vertical spacing of its horizontal distance.
Example: (8000 * 3840) / (600 * 600)


Section Qiang Zhu
a wall, longitudinal reinforcement
1, first floor vertical Qiang Zhu reinforcement length = base + Reinforcing + floor stretching from the upper storey of the lap length
2, Qiang Zhu middle layer of the longitudinal reinforcement length = + stretching from the upper layers of the high overlap length
3, top Qiang Zhu length = longitudinal reinforcement anchorage length of the top layer of clear height +
Note: If side column, top to distinguish between anchoring edge, the corner posts, to distinguish between outer and inner steel reinforcement. Because the side frame column can be seen as columns, so the anchor is also the same with the frame column.
Second, the hoops: calculated based on design drawings free combination.
wall shear beam
a third quarter, even beam


1, the force coupling beam reinforcement
top hole reinforcement length = width + right and left anchor value Lae
middle layer with the length of beam longitudinal reinforcement = hole width + right and left anchor value Lae
2, stirrups


top beams, longitudinal bars are arranged within the length of stirrups that N = ( LAE-100/150 +1) * 2 + (hole width -50 * 2) / distance +1 (top)
middle layer beams, stirrups arranged within the hole, and then each side plus a hole that is N = (hole width -50 * 2) / distance +1 (middle layer)
Second, the dark beam
1, the dark beam reinforcement net length = length + anchor
2, stirrups

< br>
Chapter structural steel columns
KZ connection


Chapter
a base layer, column reinforcement
foundation dowels = foundation slab thickness - the protective layer + stretching from the upper bar length + Max {10D, 200mm}


Second, the base within the stirrup stirrups
based role play a solid role only, it can be said to prevent the steel in the casting by the scratch when moving. Is usually calculated by 2 (the software is based on three).



a middle layer of the second chapter, column longitudinal reinforcement
1, KZ middle layer of the longitudinal reinforcement = story - out of the current layer on the ground floor height + out ground floor height
two column stirrups
1, KZ middle layer of the root of the number of stirrups one encrypted area = N / + N + spacing encrypted area of ​​non-encrypted / non-encrypted area spacing -1
03G101 -1, the stirrups on the encrypted area of ​​the column as follows
1) the first floor of the encrypted column stirrup area has three, namely: the length of the lower stirrup encrypted area to take Hn / 3; upper take Max {500 , long side column size, Hn / 6}; beam nodes within the encryption; if the column lap banding, lap within the same time it needs to be encrypted.
2) above the first floor column stirrups are: on the lower part of the encrypted area of ​​stirrup lengths were taken Max {500, column length edge size, Hn / 6}; beam nodes within the encryption; if the column uses banding lap, lap within the same time it needs to be encrypted. KZ III
top top
different because of their location, into corner posts, side column and the column, and thus the top of column longitudinal reinforcement anchorage varies. (See 03G101-1 No. 37, 38 pages)
one prism



prism top longitudinal reinforcement length = Hn + top layer of clear height steel anchor value, then the prism value of the top steel anchor How to consider it?
curved anchor (Lae): Leung - protective layer +12 d
a, the inside reinforcement anchorage length of straight anchor (Lae): Leung - protective layer

1.5Lae
b, lateral reinforcement anchorage length for a column at the top of the first layer: Leung - protective layer + column width - the protective layer +8 d
column at the top of the second layer: Leung - protective layer + column width - Protection layer
Note: In GGJ V8.1, the length of the inside bend steel anchor anchor (Lae): Leung - protective layer +12 d
direct anchoring (Lae): Leung - protective layer
lateral reinforcement anchorage length = Max {1.5Lae, Leung - protective layer + column width - the protective layer}
Second, the top side column
side column longitudinal reinforcement length = Hn + top layer of clear height steel anchor value, then top steel anchor side column value is how to consider it?
side column of the top longitudinal reinforcement steel anchor and anchor into the inside of the outer steel anchor:
a, the inside length of curved steel anchor anchor (Lae): Leung - protective layer +12 d
straight Anchor (Lae): Leung - protective layer
b, lateral reinforcement anchorage length: 1.5Lae
Note: GGJ V8.1, the length of the inside bend steel anchor anchor (Lae) : Leung - protective layer +12 d
direct anchoring (Lae): Leung - protective outer layer
reinforcement anchorage length = Max {1.5Lae, Leung - protective layer + column width - the protective layer}
Third,radii footwear uk, the column


top longitudinal reinforcement in the column length = Hn + top layer of clear height steel anchor value, then the column top steel anchor value is how to consider it?
top longitudinal reinforcement in the column length of the anchor bend anchor (Lae): Leung - protective layer +12 d
direct anchoring (Lae): Leung - protective layer
Note: In GGJ V8.1 , the processing above.
Chapter board
In practical engineering, we know that board is divided into panels and Slab, Slab analysis here mainly the case of fabric reinforcement.
Ligament are: muscle force (one-way or two-way, single or double), bearing negative reinforcement, the distribution of tendons, additional reinforcement (additional radiation corner bars, additional reinforcement hole), shoring bars ( when the support bar on the lower layer).
one
software tendon force, tendon force is based on the length axis of network computing.
axis force reinforcement length = size + left + right anchor + anchor both ends of the hook (if it is grade Ⅰ bars).
root number = (axis length - reduction value) / fabric reinforcement spacing +1
Second, the distribution of negative reinforcement and negative reinforcement bars
negative reinforcement length = length + left + right bending bending
the number of negative reinforcement root = (cloth reinforcement range - reduction value) / fabric reinforcement spacing +1
distribution of muscle length = length of the range of negative reinforcement layout - deduct the value of negative reinforcement negative reinforcement
number = root distribution of muscle type of negative reinforcement The length of the interface in the negative reinforcement / distribution of reinforcement spacing +1
three additional reinforcement (additional radiation corner bars, hole additional reinforcement), supporting steel (double-layer steel support when the upper and lower)
direct calculation based on the actual situation reinforcement length, root number can, in the software input method can be used directly enter the calculation.
Chapter Frequently Asked Questions Why do reinforced
calculation, 135o hooks in software we calculated the 11.9d?


stirrup our calculation software is actually taken 11.9D hook with the results of measuring the difference, we know that hook straight length is 10D, so the difference should be measured 1.9D, 1.9D Here we derive about the origins of this measure of difference:
calculated in accordance with the results of the skin is 1000 + 300; if it is calculated according to the center line :1000-D / 2-d +135 / 360 * 3.14 * (D / 2 + d / 2) * 2 +300, where D is the specification to take the minimum radius of 2.5d, this time behind the formula used by the results of the previous formula is: 1.87d ≈ 1.9d.
beam in the existence of two hanging bars how to deal with?
information in the input box with hanging bars And behind the second beam width according to one correspondence with hanging bars, such as input into the 250/300 (2B22 beam width corresponds to 250; 2B25 beam width corresponds to 300)
When the beam in the middle of both sides of the bearing steel is not the same software is how to handle it?
When the beam is not reinforced on both sides of the intermediate bearing the same time, we have the right software directly into the current cross-bearing negative reinforcement and negative reinforcement coming across the left bearing steel. Software to calculate the principle is reinforced on both sides of the same bearing, through; different is the anchor; input format to determine the principle is the same through different then the anchor. At right bearing negative reinforcement for the 5B22, the next cross-bearing negative reinforcement for the left-5B22 +2 B20, the five reinforced by bearing 22, two anchoring the bearing 20.
beam is variable cross-section in the software how to deal with it?
In software, the beam of variable cross-section of two types:
1, when the height difference of> 1 / 6 of the beam is high, regardless of the format is the same on both sides, both sides reinforced by anchoring all calculated. Bending length is 15d + elevation.
2, when the height difference of <1 / 6 of the beam is high, bearing both sides of the steel according to different conditions to determine treatment.
If frame column concrete strength to change how we handle column longitudinal reinforcement?
If frame column concrete strength grade changes, the handling of column longitudinal reinforcement are two cases:
1, if the column longitudinal reinforcement using electroslag welding, according to the top of the concrete strength column set;
2, if the column longitudinal reinforcement lap banding, such as 1 or 2 layers of C45, 3 ~ 10 layers of C35, the column to create two separate components: one for the C45, 3-layer, but only a 3-layer type member section size and storey, purpose is to keep the top layer 2 calculated as anchor; another component to establish a 10-layer, 1 to 2 layers only enter the member section size and storey, reinforced 3-layer information from the start input, so can solve the problem.


spiral reinforcement per meter length of circular column formula: L = N (P * P + (D-2b + do) ^ 2 * π ^ 2) ^ 0.5 + two hook length
where:
N = spiral turns, N = L / P (L circular column for the component length that is longer)
P = pitch
D = diameter
do = spiral component rebar diameter
b = cover thickness.
addition:
theoretical mass = Rebar reinforced calculate the length * of the steel reinforcement per meter
theory of the total consumption of steel quality = quality * [1 + bar ( iron) loss rate]
theoretical mass calculation shortcut bar:
theoretical mass = Rebar diameter steel square (in millimeters) * 0.00617