U-shaped seismic dampers (यू-आकार के भूकंपीय डैम्पर) ऐसे निष्क्रिय धातु (passive metallic) उपकरण हैं जो भूकंप की ऊर्जा को बार-बार होने वाले प्लास्टिक विरूपण (plastic deformation) के माध्यम से समाप्त करते हैं. इन्हें इमारतों पर भूकंप के भार (earthquake loads) के प्रभाव को कम करने के लिए डिज़ाइन किया गया है. ये डैम्पर बीम (beams) के नीचे या ब्रेसिंग (bracing) में लगाए जा सकते हैं ताकि इमारत को अलग किया जा सके और उसे नम (damp) किया जा सके. इनकी अनूठी डिज़ाइन, जिसमें अलग-अलग मोटाई (thickness) और चौड़ाई (width) होती है, इनके बेहतर प्रदर्शन में योगदान करती है.
सामग्री:ये आमतौर पर उच्च-शक्ति वाले स्टील, विशेषकर कम-कार्बन स्टील (low-carbon steel) से बने होते हैं. Mg-Al alloys (मैग्नीशियम-एल्यूमीनियम मिश्र धातु) जैसे अन्य सामग्रियों का भी अध्ययन किया जा रहा है.
अनुप्रयोग (Applications):इनका उपयोग इमारतों में कंपन (vibration) को कम करने और भूकंप की ऊर्जा को अवशोषित करने के लिए किया जाता है. इनके अनुप्रयोग के उदाहरणों में इसहाया सिटी हॉल और जापानी रेड क्रॉस अस्पताल इशिनोमाकी शामिल हैं. इन्हें अन्य प्रकार के भूकंपीय अलगाव बियरिंग्स (seismic isolation bearings), जैसे कि रबर पैड (rubber pads), के साथ भी जोड़ा जा सकता है.
The standard specifications for red bricks used in construction should meet the following requirements to ensure quality and durability:
1. Physical Properties: - Size (Standard Modular Brick): - 190 mm × 90 mm × 90 mm (Nominal size including mortar joints) - Actual size:~ 230 mm × 110 mm × 70 mm (may vary slightly) - Weight: Typically 3.0 to 3.5 kg per brick - Density:1600-1920 kg/m³
2. Compressive Strength: - Minimum: 3.5 N/mm²(Class 3.5) - Standard: 7.0 N/mm² (Class 7.0) for load-bearing walls - Higher Grade: 10.5 N/mm²(Class 10.5) for heavy-duty construction
3. Water Absorption: - Should not exceed 20% of its dry weight when immersed in water for 24 hours. - Ideal range: 12% to 15%
4. Efflorescence: - Low to negligible (white salt deposits should not be excessive when tested as per IS codes).
5. Shape & Texture: - Uniform rectangular shape with sharp edges. - Smooth surface without cracks or lumps.
6. Soundness Test: - When struck together, bricks should produce a clear metallic ringing sound.
7. Hardness Test: - No impression should be left when scratched with a fingernail.
also called "lightweight or buoyant concrete, is made by reducing its density using lightweight aggregates or air-entraining techniques. Here’s a short guide:
Key Steps to Make Floating Concrete: 1. Lightweight Aggregates – Use porous materials like: - Expanded clay/shale - Perlite - Pumice - Polystyrene beads
2. High Air Content – Introduce air bubbles using: - Foaming agents - Aerated concrete techniques
3. Low Density Mix– Keep density below 1000 kg/m³ (water’s density is ~1000 kg/m³).
4. Waterproofing – Coat with waterproof materials (epoxy, acrylic) to prevent water absorption.
Thumb Rule for Stone Retaining Wall 1. General Rule: - The base thickness (bottom width)of the wall should be about 1/3 to 1/2 of the wall height. - The top width can be 12 to 18 inches (minimum).
Example: - If the wall is 6 feet (1.8 m) high, the base thickness should be around 2 to 3 feet (0.6 to 0.9 m). - The top width can be 1.5 feet (0.45 m).
2. Batter (Slope) Consideration: - Retaining walls should have a slight batter (slope) for stability (typically 1:10 to 1:20). - This means for every 1 foot height, the wall tapers inward by 1 to 2 inches.
3. For Red Soil (High Erosion Risk): - Since red soil is less cohesive and prone to erosion, a thicker wall (closer to 1/2 of height) is recommended. - Proper drainage is essential to prevent water pressure buildup.
Sardar Patil civil engineer
Sardar Patil civil engineer
30'x40' House design
youtube.com/shorts/VIzlkTk-FV...
2 months ago | [YT] | 16
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Sardar Patil civil engineer
U-shaped seismic dampers (यू-आकार के भूकंपीय डैम्पर) ऐसे निष्क्रिय धातु (passive metallic) उपकरण हैं जो भूकंप की ऊर्जा को बार-बार होने वाले प्लास्टिक विरूपण (plastic deformation) के माध्यम से समाप्त करते हैं. इन्हें इमारतों पर भूकंप के भार (earthquake loads) के प्रभाव को कम करने के लिए डिज़ाइन किया गया है. ये डैम्पर बीम (beams) के नीचे या ब्रेसिंग (bracing) में लगाए जा सकते हैं ताकि इमारत को अलग किया जा सके और उसे नम (damp) किया जा सके. इनकी अनूठी डिज़ाइन, जिसमें अलग-अलग मोटाई (thickness) और चौड़ाई (width) होती है, इनके बेहतर प्रदर्शन में योगदान करती है.
सामग्री:ये आमतौर पर उच्च-शक्ति वाले स्टील, विशेषकर कम-कार्बन स्टील (low-carbon steel) से बने होते हैं. Mg-Al alloys (मैग्नीशियम-एल्यूमीनियम मिश्र धातु) जैसे अन्य सामग्रियों का भी अध्ययन किया जा रहा है.
अनुप्रयोग (Applications):इनका उपयोग इमारतों में कंपन (vibration) को कम करने और भूकंप की ऊर्जा को अवशोषित करने के लिए किया जाता है. इनके अनुप्रयोग के उदाहरणों में इसहाया सिटी हॉल और जापानी रेड क्रॉस अस्पताल इशिनोमाकी शामिल हैं. इन्हें अन्य प्रकार के भूकंपीय अलगाव बियरिंग्स (seismic isolation bearings), जैसे कि रबर पैड (rubber pads), के साथ भी जोड़ा जा सकता है.
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Sardar Patil civil engineer
2 BHK house design
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Sardar Patil civil engineer
34 feet by 38 feet 2BHK House design
Living room : 15'6"x15'
kitchen and dining room :13'9"x13'
Bedroom 1 : 11'10"x 13'9"
Bedroom 2 : 11'4"x13'9"
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Sardar Patil civil engineer
The standard specifications for red bricks used in construction should meet the following requirements to ensure quality and durability:
1. Physical Properties:
- Size (Standard Modular Brick):
- 190 mm × 90 mm × 90 mm (Nominal size including mortar joints)
- Actual size:~ 230 mm × 110 mm × 70 mm (may vary slightly)
- Weight: Typically 3.0 to 3.5 kg per brick
- Density:1600-1920 kg/m³
2. Compressive Strength:
- Minimum: 3.5 N/mm²(Class 3.5)
- Standard: 7.0 N/mm² (Class 7.0) for load-bearing walls
- Higher Grade: 10.5 N/mm²(Class 10.5) for heavy-duty construction
3. Water Absorption:
- Should not exceed 20% of its dry weight when immersed in water for 24 hours.
- Ideal range: 12% to 15%
4. Efflorescence:
- Low to negligible (white salt deposits should not be excessive when tested as per IS codes).
5. Shape & Texture:
- Uniform rectangular shape with sharp edges.
- Smooth surface without cracks or lumps.
6. Soundness Test:
- When struck together, bricks should produce a clear metallic ringing sound.
7. Hardness Test:
- No impression should be left when scratched with a fingernail.
8. Thermal Conductivity:
- 0.6 – 1.0 W/mK (for better insulation).
9. Indian Standard (IS) Codes:
- IS 1077:1992 (Common Burnt Clay Building Bricks)
- IS 3495:1992 (Methods of Tests for Bricks)
10. Visual Inspection:
- No cracks, distortions, or irregularities.
- Uniform red color (indicates proper firing).
If the bricks meet these standards, they are suitable for construction purposes, including load-bearing walls, partitions, and masonry work.
Would you like additional details on testing methods?
3 months ago | [YT] | 29
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Sardar Patil civil engineer
Floating concrete youtube.com/shorts/PQPTswWWgy...
also called "lightweight or buoyant concrete, is made by reducing its density using lightweight aggregates or air-entraining techniques. Here’s a short guide:
Key Steps to Make Floating Concrete:
1. Lightweight Aggregates – Use porous materials like:
- Expanded clay/shale
- Perlite
- Pumice
- Polystyrene beads
2. High Air Content – Introduce air bubbles using:
- Foaming agents
- Aerated concrete techniques
3. Low Density Mix– Keep density below 1000 kg/m³ (water’s density is ~1000 kg/m³).
4. Waterproofing – Coat with waterproof materials (epoxy, acrylic) to prevent water absorption.
Applications:
- Floating platforms
- Marine structures
- Decorative ponds
Note:
Regular concrete (2400 kg/m³) sinks, but lightweight mixes with enough air/voids float.
Would you like a specific mix ratio?
4 months ago (edited) | [YT] | 21
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Sardar Patil civil engineer
Thumb Rule for Stone Retaining Wall
1. General Rule:
- The base thickness (bottom width)of the wall should be about 1/3 to 1/2 of the wall height.
- The top width can be 12 to 18 inches (minimum).
Example:
- If the wall is 6 feet (1.8 m) high, the base thickness should be around 2 to 3 feet (0.6 to 0.9 m).
- The top width can be 1.5 feet (0.45 m).
2. Batter (Slope) Consideration:
- Retaining walls should have a slight batter (slope) for stability (typically 1:10 to 1:20).
- This means for every 1 foot height, the wall tapers inward by 1 to 2 inches.
3. For Red Soil (High Erosion Risk):
- Since red soil is less cohesive and prone to erosion, a thicker wall (closer to 1/2 of height) is recommended.
- Proper drainage is essential to prevent water pressure buildup.
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Sardar Patil civil engineer
Happy Engineer's Day!
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Thanks for your support 🤗🎉
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Subscribe to my YouTube channel 👍
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