H Beam Steel Weight Calculator

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H Beam Steel Weight Calculator

Your reliable tool for calculating H beam steel weights.

Calculate H Beam Steel Weight

Enter the standard H beam profile designation.
Enter the length of the H beam in meters.
Enter the density of steel in kg/m³ (typical value is 7850 kg/m³).

Calculation Results

— kg
Weight per Meter: — kg/m
Cross-Sectional Area: — cm²
Beam Volume: — m³
Formula Used: Total Weight = Length × Weight per Meter
Where Weight per Meter = Cross-Sectional Area (in m²) × Steel Density

Weight vs. Length

Visualizing how the total weight of an H beam changes with its length, assuming a constant cross-sectional area and steel density.

Typical H Beam Properties (Example: HEA/HEB Series)

H Beam Profile Nominal Area (cm²) Weight per Meter (kg/m)
HEA 100 27.5 21.6
HEA 120 35.1 27.6
HEA 140 43.0 33.8
HEA 160 51.2 40.2
HEA 180 59.8 47.0
HEA 200 68.7 54.0
HEA 220 78.0 61.2
HEA 240 87.7 68.8
HEA 260 97.7 76.8
HEA 280 108.1 85.0
HEA 300 119.0 93.6
HEB 100 34.5 27.1
HEB 120 45.4 35.6
HEB 140 56.8 44.6
HEB 160 68.8 54.0
HEB 180 81.4 63.8
HEB 200 94.6 74.2
HEB 220 108.4 85.0
HEB 240 122.8 96.3
HEB 260 137.8 108.1
HEB 280 153.4 120.4
HEB 300 169.7 133.1
This table provides approximate cross-sectional areas and weights per meter for common HEA and HEB H beam profiles, derived from standard steel construction tables. Actual values may vary slightly by manufacturer and specific grade.

What is H Beam Steel Weight?

The h beam steel weight refers to the mass of a specific length of an H-shaped steel structural profile. H beams, also known as wide-flange beams, are a type of steel I-beam with a wider flange than traditional I-beams. This wider flange provides greater stability and load-bearing capacity, making them essential in modern construction for columns, beams, and other structural components. Understanding the h beam steel weight is crucial for engineers, architects, contractors, and material suppliers to accurately estimate material requirements, transportation costs, structural loads, and overall project budgets.

Who Should Use This Calculator:

  • Structural Engineers: To determine material quantities and structural integrity.
  • Architects: For preliminary design and material selection.
  • Construction Project Managers: For cost estimation, budgeting, and logistics planning.
  • Steel Fabricators and Suppliers: To manage inventory and fulfill orders accurately.
  • DIY Enthusiasts and Builders: For smaller-scale construction projects requiring H beams.

Common Misconceptions about H Beam Steel Weight:

  • Myth: All H beams of the same length weigh the same. Reality: H beams come in various profiles (e.g., HEA, HEB, IPE) with different cross-sectional dimensions, leading to significant variations in weight even for the same length.
  • Myth: Steel density is constant across all steel types. Reality: While the nominal density of steel is around 7850 kg/m³, different steel alloys can have slightly varying densities. However, for most structural calculations, 7850 kg/m³ is a universally accepted standard.
  • Myth: Weight calculation is complex and requires specialized software. Reality: The fundamental calculation is straightforward multiplication, involving length, cross-sectional area, and density, which can be easily performed with a simple calculator like this one.

Accurate calculation of h beam steel weight ensures that structural designs are safe, economically viable, and efficiently executed. This tool helps demystify the process.

H Beam Steel Weight Formula and Mathematical Explanation

The calculation of the h beam steel weight is based on fundamental principles of mass and volume. The core idea is that the weight of an object is its volume multiplied by its density.

Step-by-Step Derivation:

  1. Determine the Cross-Sectional Area (A): The first step is to find the area of the H beam's cross-section. This area is unique to each specific H beam profile (e.g., HEA 200, IPE 300). These values are standardized and can be found in steel construction tables or manufacturer datasheets. For our calculator, this is often looked up based on the section type entered.
  2. Calculate the Beam Volume (V): Once the cross-sectional area is known, the volume is calculated by multiplying the area by the length of the beam. It's crucial to ensure consistent units; if the area is in square meters (m²) and the length is in meters (m), the volume will be in cubic meters (m³).
  3. Calculate the Total Weight (W): Finally, multiply the beam's volume by the density of steel. The density of steel is a standard value, typically taken as 7850 kilograms per cubic meter (kg/m³). This multiplication yields the total weight of the H beam in kilograms.

Variables Explanations:

  • H Beam Section Type: This identifies the specific profile of the H beam (e.g., HEA 200, W12x26). It determines the beam's dimensions and thus its cross-sectional area.
  • Length (L): The linear dimension of the H beam. This is typically measured in meters (m) for construction purposes.
  • Steel Density (ρ): The mass of steel per unit volume. This is a material property. For structural steel, it's commonly taken as 7850 kg/m³.
  • Cross-Sectional Area (A): The area of the beam's profile shape. This is determined by the specific H beam designation. It needs to be converted to m² for volume calculation.
  • Beam Volume (V): The total space occupied by the beam. Calculated as A × L.
  • Weight per Meter (W/L): A useful intermediate value, representing the weight of a 1-meter length of the beam. Calculated as (A in m²) × ρ.
  • Total Weight (W): The final calculated mass of the entire H beam. Calculated as V × ρ or L × (W/L).

Variables Table:

Variable Meaning Unit Typical Range/Value
H Beam Section Type Standard designation of the H beam profile N/A HEA 100 – HEB 1000, W sections, etc.
Length (L) Length of the H beam meters (m) 0.1 m to 50+ m
Steel Density (ρ) Mass per unit volume of steel kg/m³ Approx. 7850 kg/m³
Cross-Sectional Area (A) Area of the beam's profile cm² (converted to m² for calculation) 10 cm² to 1000+ cm²
Weight per Meter (W/L) Weight of a 1-meter segment of the beam kg/m 10 kg/m to 500+ kg/m
Total Weight (W) Total mass of the H beam kilograms (kg) Calculated result
This table defines the key variables used in the H Beam Steel Weight calculation, including their units and typical values or ranges encountered in practice.

Mathematical Formula Summary:

The primary formula is: Total Weight (W) = Length (L) × Weight per Meter (W/L)

To calculate the Weight per Meter:

Weight per Meter (W/L) = [Cross-Sectional Area (A) in m²] × Steel Density (ρ)

Note: Cross-sectional area is often provided in cm². To convert cm² to m², divide by 10,000 (since 1 m² = 100 cm × 100 cm = 10,000 cm²).

Therefore, if Area is in cm²:

Total Weight (W) = L (m) × [A (cm²) / 10,000] × ρ (kg/m³)

Practical Examples (Real-World Use Cases)

Understanding the h beam steel weight calculation is best illustrated with practical scenarios.

Example 1: Calculating Weight for a Bridge Girder

A structural engineer is designing a small pedestrian bridge and needs to know the weight of the main support girders. They specify using HEB 300 H beams, each 15 meters long.

  • Inputs:
    • H Beam Section Type: HEB 300
    • Length: 15 m
    • Steel Density: 7850 kg/m³
  • Lookup: From standard tables, the HEB 300 profile has a nominal cross-sectional area of approximately 169.7 cm² and a weight per meter of about 133.1 kg/m.
  • Calculation:
    • Weight per Meter (from table): 133.1 kg/m
    • Total Weight = Length × Weight per Meter
    • Total Weight = 15 m × 133.1 kg/m
    • Total Weight = 1996.5 kg
  • Interpretation: Each HEB 300 girder weighing approximately 1996.5 kg needs to be factored into the bridge's overall structural load, transportation, and erection planning. The total weight for two such girders would be nearly 4 metric tons.

Example 2: Estimating Material for a Warehouse Frame

A construction company is building a warehouse frame using lighter HEA 200 H beams. They need 50 beams, each 8 meters long, for the main portal frames.

  • Inputs:
    • H Beam Section Type: HEA 200
    • Length: 8 m
    • Steel Density: 7850 kg/m³
  • Lookup: The HEA 200 profile has a nominal cross-sectional area of 68.7 cm² and a weight per meter of approximately 54.0 kg/m.
  • Calculation:
    • Weight per Meter (from table): 54.0 kg/m
    • Total Weight per Beam = Length × Weight per Meter
    • Total Weight per Beam = 8 m × 54.0 kg/m
    • Total Weight per Beam = 432 kg
    • Total Weight for 50 Beams = 50 × 432 kg
    • Total Weight for 50 Beams = 21,600 kg (or 21.6 metric tons)
  • Interpretation: The total steel required for these 50 beams is substantial. This calculation is critical for procurement, ensuring adequate budget allocation, and coordinating logistics for delivery and handling of over 21 tons of steel. This informs the structural analysis for the project.

These examples highlight how essential accurate h beam steel weight calculations are for various stages of a construction project, impacting cost, safety, and efficiency.

How to Use This H Beam Steel Weight Calculator

Our H Beam Steel Weight Calculator is designed for ease of use, providing accurate results quickly. Follow these simple steps:

  1. Input Beam Details:
    • H Beam Section Type: Enter the standard designation of the H beam you are using (e.g., "HEA 200", "IPE 300", "W10x20"). The calculator uses a lookup for common profiles to determine the cross-sectional area and weight per meter. If your specific profile isn't listed, you may need to manually input its properties if available or consult a comprehensive steel table.
    • Length of Beam: Enter the total length of the H beam in meters.
    • Steel Density: The default value is 7850 kg/m³, which is standard for most structural steel. You can adjust this if you are working with a specific steel alloy with a known different density.
  2. Validate Inputs: Ensure all entered values are positive numbers. The calculator provides inline error messages if an input is invalid (e.g., zero, negative, or empty).
  3. Calculate: Click the "Calculate Weight" button. The results will update instantly.
  4. Understand the Results:
    • Total Weight: This is the primary output, displayed prominently in kilograms (kg), representing the total mass of the H beam.
    • Weight per Meter: Shows the weight of a single meter of the specified H beam profile in kg/m.
    • Cross-Sectional Area: Displays the area of the beam's profile in square centimeters (cm²).
    • Beam Volume: Shows the total volume of the beam in cubic meters (m³).
  5. Use the Charts and Tables:
    • The Weight vs. Length chart provides a visual representation of how the beam's weight scales with its length.
    • The Typical H Beam Properties table offers a quick reference for common H beam profiles, aiding in selection and verification.
  6. Reset or Copy:
    • Click "Reset" to clear all fields and return to default values (HEA 200, 6m length).
    • Click "Copy Results" to copy the calculated total weight, intermediate values, and key assumptions to your clipboard for easy pasting into reports or documents.

Decision-Making Guidance:

Use the calculated h beam steel weight to:

  • Verify Material Orders: Ensure the quantity ordered matches the calculated requirement.
  • Estimate Shipping Costs: Weight is a primary factor in freight charges.
  • Plan for Handling and Lifting: Heavy beams require appropriate equipment (cranes, forklifts).
  • Check Structural Load Calculations: Confirm that the self-weight of the steel members is accounted for in the overall structural design and analysis.
  • Budgeting: Steel is often priced by weight, so an accurate estimate is key for project cost control.

Key Factors That Affect H Beam Steel Weight Results

While the core calculation is straightforward, several factors can influence the actual h beam steel weight and its application in projects:

  1. H Beam Profile Designation: This is the most significant factor. Different profiles (e.g., HEA vs. HEB, or different sizes within the same series like HEA 100 vs. HEA 300) have vastly different cross-sectional dimensions (flange width, web thickness, height). A wider flange or thicker web directly increases the cross-sectional area and thus the weight per meter. For example, an HEB profile is generally heavier than an HEA profile of the same nominal depth due to thicker flanges and webs, indicating a higher load-bearing capacity. This affects structural analysis significantly.
  2. Beam Length: This is a direct multiplier. A longer beam will weigh proportionally more. Accurate measurement or specification of beam length is critical for procurement and load calculations. Errors in length directly translate to errors in calculated weight.
  3. Steel Density Variations: While 7850 kg/m³ is the standard, actual steel density can vary slightly depending on the specific alloy composition and temperature. For most structural engineering purposes, this variation is negligible. However, in highly specialized applications or when extreme precision is required, using the exact density of the specific steel grade (e.g., S275, S355) might be necessary. This impacts the ultimate mass.
  4. Manufacturing Tolerances: Steel sections are manufactured to specific standards (e.g., EN 10034 for H beams). There are acceptable tolerances for dimensions like flange thickness, web thickness, and profile height. These small variations can lead to slight deviations from the nominal weight per meter. For critical structural applications, engineers may account for a small percentage buffer.
  5. Coating and Protective Layers: If the H beam is galvanized, painted, or coated with other protective layers, this adds extra weight. The thickness and type of coating will influence the final weight. This is typically a minor addition compared to the steel's weight itself but can be relevant for very large projects or when precise weight accounting is needed.
  6. Corrosion: Over time, steel exposed to the elements can experience corrosion (rusting), which adds mass to the surface. However, structural design codes typically require allowances for potential loss of material due to corrosion over the structure's lifespan, rather than an increase in weight due to rust buildup. The focus is usually on preventing excessive section loss which would reduce load capacity.
  7. Section Modifications: If beams are cut, welded, or modified in any way from their standard profile during fabrication, the resulting weight might differ from the calculation based on the original profile. For example, welding stiffeners or splice plates adds material. This emphasizes the importance of accurate shop drawings and fabrication procedures.

Considering these factors ensures a more robust understanding of the h beam steel weight in real-world engineering and construction scenarios, impacting everything from cost estimation to structural safety and adherence to specific building codes.

Frequently Asked Questions (FAQ) about H Beam Steel Weight

What is the difference between HEA, HEB, and HEM H beams?

HEA (European Standard Heavy – Normal) beams are lighter than HEB beams of the same depth, offering a balance between strength and weight. HEB (European Standard Heavy – Extra) beams have thicker flanges and webs, providing greater load-bearing capacity but are heavier. HEM (European Standard Heavy – Medium) beams fall in between HEA and HEB in terms of dimensions and weight.

How accurate is the standard steel density of 7850 kg/m³?

The value 7850 kg/m³ is a widely accepted average density for most common structural steels (like S235, S275, S355). While slight variations exist between specific steel alloys, this value is sufficiently accurate for nearly all structural calculations, including estimating h beam steel weight for projects.

Can I use this calculator for Imperial (US) beam sizes (e.g., W-beams)?

This calculator is primarily designed for metric H beam profiles (like HEA, HEB). While the underlying principle (Weight = Volume × Density) is the same, the input for "H Beam Section Type" and the lookup tables are geared towards metric standards. For US W-beams, you would need to input the section designation (e.g., W12x26) and ensure the cross-sectional area and weight per foot (or meter) are correctly identified, typically from AISC or manufacturer data. The core calculation logic can be adapted.

What if my specific H beam section isn't in the calculator's default lookup?

If your specific H beam profile isn't recognized by the calculator, you'll need to find its cross-sectional area (A) from a reliable source like steel construction manuals or manufacturer specifications. Ensure you convert this area to square meters (m²) by dividing cm² by 10,000. Then, you can manually calculate the weight per meter using the formula: A (m²) × Density (kg/m³). Alternatively, some advanced versions of such calculators might allow manual input of Area and Weight per Meter.

Does the calculated weight include any safety factors?

No, the calculator provides the theoretical or nominal weight based on the specified dimensions and standard steel density. Structural engineering design codes (e.g., Eurocodes, AISC) require engineers to apply load factors and material safety factors to the calculated dead loads (which include the steel's self-weight) to ensure structural safety. The calculated weight serves as the base value for these further design considerations.

How does steel grade affect H beam weight?

The steel grade (e.g., S275, S355) primarily affects the steel's yield strength and tensile strength, not its density. Therefore, the grade of steel typically does not significantly change the h beam steel weight for a given profile and length. All common structural steel grades have very similar densities around 7850 kg/m³.

Is it better to use HEA or HEB beams for heavy loads?

For heavier loads, HEB beams are generally preferred over HEA beams of the same depth because they have thicker flanges and webs, resulting in a larger cross-sectional area and greater stiffness and strength. This increased strength comes at the cost of higher weight and material cost. The choice depends on a balance between load requirements, structural efficiency, and budget.

What is the significance of the chart showing weight vs. length?

The chart visually demonstrates the linear relationship between an H beam's length and its total weight. It helps users quickly understand that doubling the length, for instance, will double the weight, assuming the beam's profile and steel density remain constant. This is fundamental for scaling up designs and estimating material quantities for larger structures.

© Your Company Name. All rights reserved. | Disclaimer: This calculator is for informational purposes only. Always consult with a qualified structural engineer for specific project designs.
var beamProperties = { "HEA 100": {"area_cm2": 27.5, "weight_per_meter_kg": 21.6}, "HEA 120": {"area_cm2": 35.1, "weight_per_meter_kg": 27.6}, "HEA 140": {"area_cm2": 43.0, "weight_per_meter_kg": 33.8}, "HEA 160": {"area_cm2": 51.2, "weight_per_meter_kg": 40.2}, "HEA 180": {"area_cm2": 59.8, "weight_per_meter_kg": 47.0}, "HEA 200": {"area_cm2": 68.7, "weight_per_meter_kg": 54.0}, "HEA 220": {"area_cm2": 78.0, "weight_per_meter_kg": 61.2}, "HEA 240": {"area_cm2": 87.7, "weight_per_meter_kg": 68.8}, "HEA 260": {"area_cm2": 97.7, "weight_per_meter_kg": 76.8}, "HEA 280": {"area_cm2": 108.1, "weight_per_meter_kg": 85.0}, "HEA 300": {"area_cm2": 119.0, "weight_per_meter_kg": 93.6}, "HEA 320": {"area_cm2": 130.2, "weight_per_meter_kg": 102.5}, "HEA 340": {"area_cm2": 141.8, "weight_per_meter_kg": 111.8}, "HEA 360": {"area_cm2": 153.8, "weight_per_meter_kg": 121.4}, "HEA 400": {"area_cm2": 179.0, "weight_per_meter_kg": 140.7}, "HEA 450": {"area_cm2": 206.1, "weight_per_meter_kg": 161.8}, "HEA 500": {"area_cm2": 234.6, "weight_per_meter_kg": 184.7}, "HEA 550": {"area_cm2": 264.5, "weight_per_meter_kg": 208.9}, "HEA 600": {"area_cm2": 295.8, "weight_per_meter_kg": 234.5}, "HEB 100": {"area_cm2": 34.5, "weight_per_meter_kg": 27.1}, "HEB 120": {"area_cm2": 45.4, "weight_per_meter_kg": 35.6}, "HEB 140": {"area_cm2": 56.8, "weight_per_meter_kg": 44.6}, "HEB 160": {"area_cm2": 68.8, "weight_per_meter_kg": 54.0}, "HEB 180": {"area_cm2": 81.4, "weight_per_meter_kg": 63.8}, "HEB 200": {"area_cm2": 94.6, "weight_per_meter_kg": 74.2}, "HEB 220": {"area_cm2": 108.4, "weight_per_meter_kg": 85.0}, "HEB 240": {"area_cm2": 122.8, "weight_per_meter_kg": 96.3}, "HEB 260": {"area_cm2": 137.8, "weight_per_meter_kg": 108.1}, "HEB 280": {"area_cm2": 153.4, "weight_per_meter_kg": 120.4}, "HEB 300": {"area_cm2": 169.7, "weight_per_meter_kg": 133.1}, "HEB 320": {"area_cm2": 186.6, "weight_per_meter_kg": 146.1}, "HEB 340": {"area_cm2": 204.1, "weight_per_meter_kg": 159.5}, "HEB 360": {"area_cm2": 222.2, "weight_per_meter_kg": 173.3}, "HEB 400": {"area_cm2": 259.4, "weight_per_meter_kg": 203.0}, "HEB 450": {"area_cm2": 298.4, "weight_per_meter_kg": 233.7}, "HEB 500": {"area_cm2": 339.2, "weight_per_meter_kg": 265.4}, "HEB 550": {"area_cm2": 381.8, "weight_per_meter_kg": 298.6}, "HEB 600": {"area_cm2": 426.2, "weight_per_meter_kg": 333.3}, "IPE 80": {"area_cm2": 13.9, "weight_per_meter_kg": 10.9}, "IPE 100": {"area_cm2": 19.1, "weight_per_meter_kg": 15.0}, "IPE 120": {"area_cm2": 24.7, "weight_per_meter_kg": 19.4}, "IPE 140": {"area_cm2": 30.6, "weight_per_meter_kg": 24.0}, "IPE 160": {"area_cm2": 37.1, "weight_per_meter_kg": 29.1}, "IPE 180": {"area_cm2": 43.9, "weight_per_meter_kg": 34.5}, "IPE 200": {"area_cm2": 51.1, "weight_per_meter_kg": 40.1}, "IPE 220": {"area_cm2": 58.7, "weight_per_meter_kg": 46.1}, "IPE 240": {"area_cm2": 66.7, "weight_per_meter_kg": 52.4}, "IPE 270": {"area_cm2": 77.0, "weight_per_meter_kg": 60.4}, "IPE 300": {"area_cm2": 87.8, "weight_per_meter_kg": 68.9}, "IPE 330": {"area_cm2": 100.0, "weight_per_meter_kg": 78.5}, "IPE 360": {"area_cm2": 112.6, "weight_per_meter_kg": 88.4}, "IPE 400": {"area_cm2": 127.0, "weight_per_meter_kg": 99.4}, "IPE 450": {"area_cm2": 143.2, "weight_per_meter_kg": 112.3}, "IPE 500": {"area_cm2": 160.9, "weight_per_meter_kg": 126.7}, "IPE 550": {"area_cm2": 180.3, "weight_per_meter_kg": 141.7}, "IPE 600": {"area_cm2": 201.4, "weight_per_meter_kg": 157.8} }; var chart = null; var chartData = []; function updateChart() { var ctx = document.getElementById("weightLengthChart").getContext("2d"); var maxLen = 20; // Max length for chart display var step = maxLen / 10; // Number of data points var labels = []; var dataPoints = []; var currentWeightPerMeter = parseFloat(document.getElementById("weightPerMeter").innerText.replace(" kg/m", "")); var currentSectionType = document.getElementById("sectionType").value.trim(); if (!isNaN(currentWeightPerMeter) && currentWeightPerMeter > 0) { for (var i = 0; i <= 10; i++) { var len = (i * step).toFixed(1); labels.push(len + " m"); var totalWeight = parseFloat(len) * currentWeightPerMeter; dataPoints.push(totalWeight.toFixed(2)); } } else { // Default data if weight per meter is not valid labels = ["0 m", "2 m", "4 m", "6 m", "8 m", "10 m", "12 m", "14 m", "16 m", "18 m", "20 m"]; dataPoints = ["0.00", "108.00", "216.00", "324.00", "432.00", "540.00", "648.00", "756.00", "864.00", "972.00", "1080.00"]; // Example for HEA 200 } chartData = { labels: labels, datasets: [{ label: 'Total Weight (kg)', data: dataPoints, borderColor: '#004a99', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: true, tension: 0.1 }] }; if (chart) { chart.destroy(); } chart = new Chart(ctx, { type: 'line', data: chartData, options: { responsive: true, maintainAspectRatio: false, scales: { x: { title: { display: true, text: 'Length of H Beam (m)' } }, y: { title: { display: true, text: 'Total Weight (kg)' }, beginAtZero: true } }, plugins: { legend: { display: false // Hide legend for single series }, title: { display: true, text: 'H Beam Total Weight vs. Length' } } } }); } function calculateWeight() { var sectionTypeInput = document.getElementById("sectionType"); var lengthInput = document.getElementById("length"); var densityInput = document.getElementById("density"); var sectionType = sectionTypeInput.value.trim(); var length = parseFloat(lengthInput.value); var density = parseFloat(densityInput.value); // Error handling var sectionTypeError = document.getElementById("sectionTypeError"); var lengthError = document.getElementById("lengthError"); var densityError = document.getElementById("densityError"); sectionTypeError.style.display = "none"; lengthError.style.display = "none"; densityError.style.display = "none"; var isValid = true; if (sectionType === "") { sectionTypeError.innerText = "H Beam Section Type cannot be empty."; sectionTypeError.style.display = "block"; isValid = false; } else if (!beamProperties[sectionType]) { sectionTypeError.innerText = "Invalid H Beam Section Type. Please check the table or enter a known profile."; sectionTypeError.style.display = "block"; isValid = false; } if (isNaN(length) || length <= 0) { lengthError.innerText = "Length must be a positive number."; lengthError.style.display = "block"; isValid = false; } if (isNaN(density) || density 0) { total_weight_kg = weight_per_meter_kg * length; } else { // Fallback if weight_per_meter is not available in lookup (shouldn't happen with current data) total_weight_kg = area_m2 * density * length; } document.getElementById("totalWeight").innerText = total_weight_kg.toFixed(2) + " kg"; document.getElementById("weightPerMeter").innerText = weight_per_meter_kg.toFixed(2) + " kg/m"; document.getElementById("crossSectionalArea").innerText = area_cm2.toFixed(1) + " cm²"; document.getElementById("beamVolume").innerText = beam_volume_m3.toFixed(3) + " m³"; updateChart(); } function resetCalculator() { document.getElementById("sectionType").value = "HEA 200"; document.getElementById("length").value = "6"; document.getElementById("density").value = "7850"; document.getElementById("sectionTypeError").style.display = "none"; document.getElementById("lengthError").style.display = "none"; document.getElementById("densityError").style.display = "none"; calculateWeight(); // Recalculate with default values } function copyResults() { var totalWeight = document.getElementById("totalWeight").innerText; var weightPerMeter = document.getElementById("weightPerMeter").innerText; var crossSectionalArea = document.getElementById("crossSectionalArea").innerText; var beamVolume = document.getElementById("beamVolume").innerText; var sectionType = document.getElementById("sectionType").value; var length = document.getElementById("length").value; var density = document.getElementById("density").value; var copyText = "— H Beam Steel Weight Calculation Results —\n\n"; copyText += "Inputs:\n"; copyText += "- H Beam Section Type: " + sectionType + "\n"; copyText += "- Length: " + length + " m\n"; copyText += "- Steel Density: " + density + " kg/m³\n\n"; copyText += "Results:\n"; copyText += "- Total Weight: " + totalWeight + "\n"; copyText += "- Weight per Meter: " + weightPerMeter + "\n"; copyText += "- Cross-Sectional Area: " + crossSectionalArea + "\n"; copyText += "- Beam Volume: " + beamVolume + "\n\n"; copyText += "Formula: Total Weight = Length × Weight per Meter"; navigator.clipboard.writeText(copyText).then(function() { // Alert user or show a toast notification (optional) var originalText = this.innerText; this.innerText = 'Copied!'; setTimeout(() => { this.innerText = originalText; }, 1500); }.bind(this), function(err) { console.error('Failed to copy text: ', err); alert('Failed to copy results. Please copy manually.'); }); } // Initialize current year for footer document.getElementById("currentYear").innerText = new Date().getFullYear(); // Initialize FAQ accordions var faqItems = document.querySelectorAll('.faq-item h3'); faqItems.forEach(function(item) { item.addEventListener('click', function() { var parent = this.parentElement; parent.classList.toggle('active'); var content = parent.querySelector('.faq-content'); if (parent.classList.contains('active')) { content.style.display = 'block'; } else { content.style.display = 'none'; } }); }); // Initial calculation and chart update on page load document.addEventListener('DOMContentLoaded', function() { calculateWeight(); updateChart(); });

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