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Chat History Crack Width - RC Sect... Torsion Check - RC Sec... RC Section Analysis Crack Width Prev. Steps: Rc Section Analysis Crack Width 01 Strength 30 MPa Steel Strength 500 MPa Design Action + Type Value My 125 kNm Generate This is the report you need, hope it can help you! Short Summary βœ“ The Max. Crack Width of the section : 0.03 mm artifact RC_section_analysis_crack_width.pdf πŸ“Š Check Section Moment Capacity Check Section Shear Resistance ⭐ Check Footing Bearing Stress Type your target structural design here ... Section Width 500 mm Height 700 mm Reinforcement Shear Notation:R12@150C/C Tension Layer:1-3T32 Material Concrete Strength 30 MPa Steel Strength 500 MPa Design Action My 125 kNm RC Section Analysis Crack Width For diagram, we assumed: cover, c = 50 mm 700 mm 500 mm Fig. 1 RC Beam Section Effective Depth d = h - cc - Ο† stirrup - Ο† tension /2 = 700 mm - 50 mm - 12 mm - 32 mm /2 = 622 mm Compression in Conc., F = 0.5bxΞ΅ c E c Compression in Steel, F = A sc E s Ξ΅ sc Tension in Steel, F = A st E s Ξ΅ st Section

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Moment Capacity (Cl. 6.3.2) MEd = (fyk/Ξ³s) βˆ— As βˆ— z = (460MPa/1.15) βˆ— 1472.62mm2 βˆ— 318.6mm = 187.67 kNm

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Check RC Moment Capacity Can you help to check the moment? Got it! You want to check the RC Section Moment. What is the section? What is the width and height of the section? βš™οΈ Get Default Param πŸ“Š Check Section Moment Let's get the default section. Here is the parameter. Section Type Value Width Height Type your target structural design here ...

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crack_width_check.pdf 1 / 4 100% Project: Yuen Long Project A/H/K/HF/dsg.hl Date: 2026-01-26 Title: By: KS Checked: Geometry RC section analysis crack width - Section Width 500 mm Height 700 mm Reinforcement Shear Notation R12@150c/c Tension Design action RC section analysis crack width - Design action My 125 kNm Material RC section analysis crack width - Material Concrete Strength 30 MPa Steel Strength 500 MPa RC Section Analysis Crack Width For diagram, we assumed: cover, c = 50 mm R12@150c/c Height = 700 mm 500 mm Fig. 1 RC Beam Section Effective Depth d = h - cc - Ο† stirrup - Ο† tension /2 = 700 mm - 50 mm - 12 mm - 32 mm /2 = 622 mm Page 1

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Section
TypeValue
Width
Height
Reinforcement
Tension Layer 1:
T
Width = 300 mm Height = 520 mm 3T25

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βœ… Moment Capacity of the Section : 187.67 kNm

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Section
Width 300 mm
Height 520 mm
Reinforcement
Tension Layer 1:3T25
Material
Concrete
Strength 30 MPa
Steel
Strength 460 MPa

RC Section Analysis Moment

For diagram, we assumed:
cover, c=50 mm
shear rebar dia.=8 mm
3T25 300 mm h = 520 mm Fig. 1 RC Beam Section
Effective Depth
d = hβˆ’ccβˆ’Ο•shearβˆ’Ο•tension/2h - cc - \phi_{shear} - \phi_{tension} /2
= 520 mm - 50 mm - 8 mm - 25 mm /2
= 449.5 mm
Neutral Axis x
xux_{u} = (fyk/Ξ³s)βˆ—AsΞ·βˆ—Ξ±ccβˆ—(fck/Ξ³c)\frac{(f_{yk}/\gamma_{s}) * A_{s}}{\eta * \alpha_{cc} * (f_{ck} / \gamma_{c}) }
= (460MPa/1.15)βˆ—1472.62mm20.9βˆ—1.5βˆ—(30MPa/1.5)\frac{(460 MPa/1.15) * 1472.62 mm^2}{0.9 * 1.5 * (30 MPa / 1.5) }
= 72.72 mm
Check Neutral Axis x, if 0.125d ≀ x ≀ 0.45d:
0.125d ≀ xu≀0.45dx_{u} ≀ 0.45d
56.19 ≀ 72.72 ≀ 202.28
Therefore, x=72.72 mm
Hence, Level Arm
z = dβˆ’(Ξ»βˆ—x)/2d - ( \lambda * x ) / 2
= 449.5 mm - ( 0.9 * 72.72 mm ) / 2
= 318.6 mm
Moment Capacity
MEdM_{Ed} = (fyk/Ξ³s)βˆ—Asβˆ—z( f_{yk}/\gamma_{s} ) * A_{s} * z
= (460MPa/1.15)βˆ—1472.62mm2βˆ—318.6mm( 460 MPa/1.15 ) * 1472.62 mm^2 * 318.6 mm
= 187.67 kNm

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