Ethiopian Construction Vacancy & Tender
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Ethiopian Construction Vacancy & Tender Daily updates on construction Engineering Works, job vacancies, tenders,News,Technology and bid announcements in Ethiopia & World Buy ads: https://telega.io/c/ETCONpWORK 📩 @Philemona7
نمایش بیشتر📈 تحلیل کانال تلگرام Ethiopian Construction Vacancy & Tender
کانال Ethiopian Construction Vacancy & Tender (@etconpwork) در بخش زبانی امهری بازیگری فعال است. در حال حاضر جامعه شامل 17 882 مشترک است و جایگاه 2 170 را در دسته حرفه و رتبه 1 924 را در منطقه أثيوبيا دارد.
📊 شاخصهای مخاطب و پویایی
از زمان ایجاد در невідомо، پروژه رشد سریعی داشته و 17 882 مشترک جذب کرده است.
بر اساس آخرین دادهها در تاریخ 15 سپتامبر, 2026، کانال فعالیت پایداری دارد. در ۳۰ روز گذشته تغییر اعضا برابر 245 و در ۲۴ ساعت گذشته برابر -5 بوده و همچنان دسترسی گستردهای حفظ شده است.
- وضعیت تأیید: تأیید نشده
- نرخ تعامل (ER): میانگین تعامل مخاطب 14.19% است و در ۲۴ ساعت نخست پس از انتشار، محتوا معمولاً 9.00% واکنش نسبت به کل مشترکان کسب میکند.
- دسترسی پستها: هر پست به طور میانگین 2 537 بازدید دریافت میکند. در اولین روز معمولاً 1 609 بازدید جمعآوری میشود.
- واکنشها و تعامل: مخاطبان بهطور فعال حمایت میکنند؛ میانگین واکنش به هر پست 4 است.
📝 توضیح و سیاست محتوایی
نویسنده این فضا را محل بیان دیدگاههای شخصی توصیف میکند:
“Ethiopian Construction Vacancy & Tender
Daily updates on construction Engineering Works, job vacancies, tenders,News,Technology and bid announcements in Ethiopia & World
Buy ads: https://telega.io/c/ETCONpWORK
📩 @Philemona7”
به لطف بهروزرسانیهای پرتکرار (آخرین داده در تاریخ 16 سپتامبر, 2026)، کانال همواره بهروز و دارای دسترسی بالاست. تحلیلها نشان میدهد مخاطبان بهطور فعال با محتوا تعامل دارند و آن را به نقطه اثرگذاری مهم در دسته حرفه تبدیل کردهاند.
17 882
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پستهای کانال
👉የኮንክሪት ስላብ ከተሞላ በኋላ Curing (ውኃ ማጠጣት) መቼ እና እንዴት መጀመር አለበት? 🏗️💧
በምስሉ ላይ እንደምታዩት፣ አዲስ የተሞላ የኮንክሪት ስላብ (Concrete Slab) ተገቢውን ጥንካሬ (Design Strength) እንዲያገኝ ውኃ ማጠጣት (Curing) ወሳኝ ደረጃ ነው።
💡 Curing መቼ መጀመር አለበት?
- የመጀመሪያው ደረጃ (Initial Curing)፦ ኮንክሪቱ መድረቅ እና ጠንካራ መሆን ሲጀምር — ማለትም ኮንክሪት ከተሞላ ከ6 እስከ 10 ሰዓታት በኋላ (Final Setting Time ላይ ሲደርስ) ወይም በሁለተኛው ቀን ጠዋት በቂ እርጥበት መስጠት መጀመር አለበት።
- የቆይታ ጊዜ (Duration)፦ የኮንክሪት ስላብ ቢያንስ ከ7 እስከ 14 ቀናት ተከታታይ ውኃ ማግኘት አለበት (Ordinary Portland Cement ከሆነ 7 ቀን፣ Rapid Hardening ወይም ሞቃታማ ቦታ ከሆነ እስከ 14 ቀን)።
💡 ውኃ የማጠጫ የተመደቡ ዘዴዎች፦
1️⃣ Ponding Method (ውኃ በግደብ መቋጠር)፦ በስላቡ ዙሪያ በጭቃ/በአሸዋ ግደብ በመስራት ውኃ እንዲቋጥር ማድረግ (ለስላብ በጣም ተመራጭ)።
2️⃣ Wet Covering (እርጥብ ጆንያ አልፎ አልፎ ማልበስ)፦ በጆንያ (Wet Gunny Bags) በመሸፈን አየር እንዳያደርቀው ማድረግ።
🚥Curing በሰዓቱ አለመጀመር የፕላስቲክ ሽሪንኬጅ ስንጥቅ (Plastic Shrinkage Cracks) እና የኮንክሪት ጥንካሬ መቀነስ ያስከትላል! 🤝
🌟የ C-25 Concrete Cost Breakdown & Detailed Calculation ከነ Excel እና PDF Note ከፈለጉ ከታች ባለው ሊንክ ያውርዱት👇
https://ye-buna.com/etconp?ref=product_detail&product=6a86960fc21e9_etconp
| 2 | https://youtu.be/YwtYGne4qSk?si=zqObV8PtaCr_O5RC | 1 221 |
| 3 | 👉ምርጥ ቤዝመንት ያለው G+5 ህንፃ ማለትም አርክቴክቸራል፣ስትራክቸራል፣ኤሌክትሪካል እና ሳኒተሪ ያካተተ በ Auto Cad የተሰራ ዲዛይን ከፈለጉ ከታች ባለው ሊንክ ያውርዱት👇
https://ye-buna.com/etconp?ref=product_detail&product=6a75638f22910_etconp | 1 324 |
| 4 | 👉የSurveying (ሰርቬይንግ) የስራ ቅደም ተከተል በአጠቃላይ እንዲህ ነው፦ ━━━━━━━━━━━━━━
1. Reconnaissance / Site Reconnaissance – ቦታውን ቀድሞ መመርመርና መረጃ መሰብሰብ።
2. Establish Control Points – BM, TBM, control points መመስረት።
3. Benchmark (BM) Establishment – የከፍታ መነሻ ነጥብ ማዘጋጀት።
4. Instrument Setup – Total Station, Level, GPS/GNSS ወዘተ በትክክል ማቆም።
5. Orientation / Backsight – መሳሪያውን ወደ known point በማዞር አቅጣጫ ማዘጋጀት።
6. Field Observation / Measurement – አንግል፣ ርቀት፣ elevation እና coordinates መለካት።
7. Detail Survey / Topographic Survey – የመሬት ቅርጽ፣ existing structures፣ road፣ drainage ወዘተ መሰብሰብ።
8. Leveling – RL/elevation ማስላት።
9. Data Download & Processing – የመለኪያ መረጃን ወደ computer ማስገባትና ማስላት።
10. CAD/Drawing Preparation – plan, profile, contour, setting-out drawing ማዘጋጀት።
11. Setting Out – ከdrawing ወደ ground የbuilding/road/grid/column points ማስተላለፍ።
12. As-Built Survey – የተገነባውን ስራ ከapproved drawing ጋር ማረጋገጥ።
13. Quality Control & Reporting – measurements መፈተሽ፣ errors ማረምና survey report ማዘጋጀት።
🌟በአጠቃላይ የSurveying (ሰርቬይንግ) የስራ ቅደም ተከተል፦
✏️Reconnaissance → Control Points → BM/TBM → Instrument Setup → Backsight → Measurement → Data Processing → Drawing → Setting Out → As-Built → Reporting
━━━━━━━━━━━━━━
🌐ለተጨማሪ መረጃ እና ሌሎች የኮንስትራክሽን ዘርፍ ዜናዎች የ YouTube ገፃችን ከታች ባለው ሊንክ በመግባት SubScribe አርገው ቤተሰብ ይሁኑ👇
https://youtube.com/@ethiopianconstruction7?si=ils307xXQQpIdCwG
@etconp | 1 420 |
| 5 | 👉Complete Guide to Reading Building Drawings
📐መፅሃፉ የህንፃን ድሮዊንግ በተግባር ለመረዳት እና ስለ ጠቅላላ አርክቴክቸር ሳይነስ የሚዳስስ ምርጥ መፅሐፍ ከታች ባለው ሊንክ ያውሩዱት👇
https://ye-buna.com/etconp?ref=product_detail&product=6aa7c4a30b34d_etconp | 1 402 |
| 6 | 👉የግንባታ ፌሮ ብረት አስተጣጠፍ (Rebar Bending) Stages ━━━━━━━━━━━━━━
🌟በግንባታ ሳይት የRebar አስተጣጠፍ ሂደት በአጠቃላይ እንዲህ ይከናወናል፦
1. Drawing/Bar Bending Schedule (BBS) ማጥናት
Bar diameter, shape, length, spacing እና quantity ማረጋገጥ።
2. Steel Cutting – መቁረጥ
ብረቱን በBBS መሰረት በትክክለኛው ርዝመት መቁረጥ።
3. Marking – ምልክት ማድረግ
Bend point, hook, crank ወዘተ የሚጀምርበትን ቦታ ማርክ ማድረግ።
4. Bending – ማጠፍ/ማስተጣጠፍ
Bar bending machine ወይም ተገቢውን manual tool በመጠቀም ብረቱን በDrawing/BBS የተጠየቀውን shape ማድረግ።
5. Shape & Dimension Checking – መፈተሽ
Length, angle, hook length, bend diameter እና shape ከBBS ጋር ማነፃፀር።
6 Identification & Bundling – መለየትና ማሰር
የተጠፈውን ብረት በBar Mark/Member መለያ መሰረት ማደራጀት።
7. Storage – በትክክል ማስቀመጥ
ከመሬት ከፍ ብሎ፣ ከጭቃና ከውሃ ተጠብቆ ማስቀመጥ።
8. Fixing/Installation – በStructure ላይ መግጠም
Footing, Column, Beam, Slab ወዘተ ላይ በDrawing መሰረት ማስቀመጥና በBinding Wire ማሰር።
🚥In Short:-
✅Drawing/BBS → Cutting → Marking → Bending → Checking → Bundling → Storage → Fixing
━━━━━━━━━━━━━━
🌟ለተጨማሪ ዓለም አቀፍ እና የሀገር ውስጥ የኮንስትራክሽን መረጃዎች ሌላኛው የቴሌግራም ቻናላችንን ይቀላቀሉ።
https://t.me/ETCONp | 1 629 |
| 7 | 👉የሳምንቱ ዓለም አቀፍ የኮንስትራክሽን ዜናዎችና ቴክኖሎጂዎች 🏗️🌍
☄ለዚህ ሳምንት ዓለም አቀፍ የኮንስትራክሽን እና የሪል ስቴት ዘርፍ ትኩረትን የሳቡ ዋና ዋና ክስተቶች፣ የዘመናዊ ቴክኖሎጂ ፈጠራዎች እና የግንባታ ማሻሻያዎች ከዚህ በታች ተዘርዝረዋል፦
አርቴፊሻል ኢንተለጀንስ (AI) በግንባታ ደህንነት ቁጥጥር ላይ በአውሮፓ እና በሰሜን አሜሪካ የሚገኙ ግንባር ቀደም የኮንስትራክሽን ኩባንያዎች የደህንነት ካሜራዎችን ከ AI ቴክኖሎጂ ጋር በማቀናጀት በግንባታ ቦታዎች ላይ ሊከሰቱ የሚችሉ አደጋዎችን አስቀድሞ የሚጠቁም ሥርዓት በስፋት እየተጠቀሙበት ይገኛሉ።
ቴክኖሎጂው ሠራተኞች የግንባታ እቃዎችን (ለምሳሌ ሄልሜት እና የደህንነት ማሰሪያዎችን) በትክክል ማጥለቃቸውን በራስ-ሰር በመከታተል የሥራ ላይ አደጋዎችን በከፍተኛ ሁኔታ መቀነስ ችሏል።
የካርቦን ልቀት ቅነሳ በሲሚንቶ ማምረቻዎች
ዓለም አቀፍ የሲሚንቶ አምራቾች ማህበር ባወጣው አዲስ ሪፖርት መሰረት፣ በግንባታ ግብአቶች ዘርፍ የሚወጣውን የካርቦን ዳይኦክሳይድ ልቀት በግማሽ ለመቀነስ የሚያስችሉ አዳዲስ 'ግሪን ሲሚንቶ' (Green Cement) አማራጮች ተጠናክረው ቀጥለዋል።
በተለይ እንደ ቮልካን አሽ እና በኢንዱስትሪ ቆሻሻዎች ላይ የተመሰረቱ የሲሚንቶ ማምረቻ ቴክኖሎጂዎች በፈረንሳይ እና ጀርመን በስፋት ወደ ሥራ እየገቡ ናቸው።
የትላልቅ ከተሞች የከርሰ ምድር መሠረተ ልማት እና አውቶሜትድ ቦይ ማዕቀፎች
በእስያ እያደጉ ባሉ መካከለኛ እና ታላላቅ ከተሞች፣ የትራፊክ መጨናነቅን እና የቧንቧ መስመር ጥገና ፈተናዎችን ለመቅረፍ ባለ ብዙ ደረጃ የከርሰ ምድር መሠረተ ልማት ኔትወርኮች እየተገነቡ ይገኛሉ።
እነዚህ ፕሮጀክቶች ሙሉ በሙሉ በሮቦቲክስ እና በዲጂታል መንታ (Digital Twin) ቴክኖሎጂዎች የሚታገዙ ሲሆን፣ የከተሞችን የረጅም ጊዜ ዘላቂነት እያረጋገጡ ይገኛሉ።
🚥በቅድመ-ግንባታ
(Prefabrication) እና ሞጁላር ህንፃዎች ላይ የሚታየው ዕድገት በአሜሪካ እና በMiddle East (መካከለኛው ምስራቅ) የሪል ስቴት ገበያ የጊዜ እና የወጪ ቆጣቢነቱን ከፍ ለማድረግ በፋብሪካ ተጠናቀው የሚገጠሙ የሞጁላር ህንፃዎች ፍላጎት ከዕለት ወደ ዕለት እየጨመረ ነው።
ይህ አሰራር የግንባታ ጊዜን እስከ 40 በመቶ መቀነስ እንደቻለ የዘርፉ ጥናቶች ያመለክታሉ።
🌟ለተጨማሪ ዓለም አቀፍ እና የሀገር ውስጥ የኮንስትራክሽን መረጃዎች ሌላኛው የቴሌግራም ቻናላችንን ይቀላቀሉ።
https://t.me/ETCONpWORK | 1 610 |
| 8 | 👉ባሁኑ ባለው ዋጋ የተሰራ፣ጨረታ ስትሞሉም የሚጠቅማቹ የመንገድ ስራ BOQ ከፈለጉ ከታች ባለው ሊንክ ያውርዱት👇
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| 9 |  👉የኮብልስቶን ንጣፍ አሰራር እና የቅስት (Fan Pattern) ዲዛይን ጥቅሞች! 🛣️🧱
🌟በምስሉ ላይ እንደምታዩት የኮብልስቶን ድንጋዮች በቅስት ቅርጽ (Segmental Arc / Fan Pattern) ተደርድረው የተነጠፉበት አሰራር በከተማ ውበት እና በመንገድ ግንባታ ላይ በርካታ ጥቅሞች አሉት፦
1️⃣ ከፍተኛ የሸክም ስርጭት (Load Distribution)፦ ድንጋዮቹ በቅስት/በክብ ቅርጽ መደረደራቸው የመጡትን የተሽከርካሪ እና የእግረኛ ጫናዎች በእኩል በመበተን ንጣፉ እንዳይነቀል ያደርጋል።
2️⃣ የዝናብ ውኃ ፍሰት እና መሬት መስመጥ መከላከል፦ በመገጣጠሚያዎች (Joints) መካከል ባሉ ክፍተቶች ውኃ ወደ መሬት እንዲሰርግ በማድረግ የመንገድ ላይ ውኃ መቋጠርን ይቀንሳል።
3️⃣ ዘላቂነት እና ውበት (Durability & Aesthetics)፦ ከተፈጥሮ ድንጋይ የሚዘጋጅ በመሆኑ ለአስርተ ዓመታት ያለ ከፍተኛ ጥገና የሚያገለግል እና ለአካባቢው የላቀ የሕንፃ/የመንገድ ውበት የሚሰጥ ነው።
ጥራት ያለው የኮብልስቶን አነጣጥ ስራ — ለመንገዶቻችን ጽዳት እና ውበት🤝
🌐ለተጨማሪ መረጃ እና ሌሎች የኮንስትራክሽን ዘርፍ ዜናዎች የ YouTube ገፃችን ከታች ባለው ሊንክ በመግባት SubScribe አርገው ቤተሰብ ይሁኑ👇
https://youtube.com/@ethiopianconstruction7?si=ils307xXQQpIdCwG
@etconp | 1 738 |
| 10 | 👉Complete Guide to Reading Building Drawings
📐መፅሃፉ የህንፃን ድሮዊንግ በተግባር ለመረዳት እና ስለ ጠቅላላ አርክቴክቸር ሳይነስ የሚዳስስ ምርጥ መፅሐፍ ከታች ባለው ሊንክ ያውሩዱት👇
https://ye-buna.com/etconp?ref=product_detail&product=6aa7c4a30b34d_etconp | 1 713 |
| 11 | 👉Complete Guide to Reading Building Drawings
📐መፅሃፉ የህንፃን ድሮዊንግ በተግባር ለመረዳት እና ስለ ጠቅላላ አርክቴክቸር ሳይነስ የሚዳስስ ምርጥ መፅሐፍ ከታች ባለው ሊንክ ያውሩዱት👇
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| 12 | 👉𝖧𝗈𝗐 𝖽𝗈 𝗌𝗎𝗋𝗏𝖾𝗒𝗈𝗋𝗌 𝗏𝖾𝗋𝗂𝖿𝗒 𝗆𝗈𝖽𝖾𝗋𝗇 𝗂𝗇𝗌𝗍𝗋𝗎𝗆𝖾𝗇𝗍 𝗈𝖻𝗌𝖾𝗋𝗏𝖺𝗍𝗂𝗈𝗇𝗌 𝖻𝖾𝖿𝗈𝗋𝖾 𝗂𝗇𝖼𝗈𝗋𝗉𝗈𝗋𝖺𝗍𝗂𝗇𝗀 𝗍𝗁𝖾𝗆 𝗂𝗇𝗍𝗈 𝖺𝗇 𝖾𝗌𝗍𝖺𝖻𝗅𝗂𝗌𝗁𝖾𝖽 𝗍𝗋𝖺𝗏𝖾𝗋𝗌𝖾 𝗇𝖾𝗍𝗐𝗈𝗋𝗄?
Modern surveying instruments can collect angles, distances, and coordinates rapidly, but electronically recorded observations are not automatically reliable.
Before new observations are incorporated into an established traverse network, surveyors verify that the measurements are consistent with the existing control and the required survey accuracy.
The work begins with checking the instrument itself.
The Total Station or GNSS receiver is confirmed to be suitable for the required accuracy, with appropriate calibration and operational checks completed.
For a Total Station, the surveyor checks the instrument setup carefully.
The instrument must be properly centered over the traverse station and accurately leveled.
The station identification, instrument height, prism height, prism constant, and measurement settings are also verified.
The backsight is then observed to confirm the orientation.
Where the survey procedure requires it, the direction is checked through additional observations rather than relying on a single sight.
Horizontal angles and distances to the new traverse station are then observed.
Important observations may be repeated, including observations on both faces of the instrument where appropriate.
The repeated results are compared to identify abnormal differences before the data are accepted.
GNSS observations require their own checks.
The receiver configuration, antenna information, observation method, correction source, coordinate reference system, and solution quality are reviewed.
Where GNSS is being connected to existing traverse control, the resulting coordinates are compared with the known control within the specified accuracy.
The new observations are also checked against the geometry of the existing network.
A new traverse connection may be observed from more than one control station, or the traverse may be closed onto established control.
These independent relationships provide stronger evidence that the new measurements are consistent with the network.
Any significant discrepancy is investigated before the observation is incorporated.
Surveyors review the original field data, station identification, orientation, instrument settings, observation conditions, and coordinate computations to determine whether the problem comes from the new observation or the existing control.
The objective is not simply to make the new measurements agree with the established network.
The observations must be independently supported and shown to satisfy the required accuracy before they become part of the control framework.
Once the observations pass the necessary checks, they can be incorporated into the traverse computation and, where appropriate, adjusted with the rest of the network.
This process protects the established control from being weakened by a single unreliable observation.
It also ensures that modern instruments improve the efficiency of traverse surveying without replacing the fundamental principles of independent verification and quality control.
Here is something to think about:
If a new Total Station traverse connection disagrees with established control while the instrument passes its calibration checks, what other evidence should a surveyor examine before accepting or rejecting the new observations?
#SurveyQuality #TotalStation #TraverseSurveying #SurveyControl #LandSurveying
@etconp | 1 886 |
| 13 | 👉Complete Guide to Reading Building Drawings መፅሃፉ የህንፃን ድሮዊንግ በተግባር ለመረዳት የተዘጋጀ ጠቃሚ የዲጂታል ምርጥ መጽሐፍ ነው።
📚በመጽሐፉ ውስጥ፦
📐ስለ Architecture በጥልቀት ምትማሩበት
🏠 የFloor Plan እና Floor System
🏗️ የStructural Drawing
🏠 የRoof Plan እና Truss
📐 Elevation እና Section
🚪 Door & Window Schedule
📏 Drawing Symbols እና Details
✅ Drawing Review Checklists
እና ሌሎች በርካታ የስዕል ንባብ መሠረታዊ እውቀቶችን ያካትታል 👇
https://ye-buna.com/etconp?ref=product_detail&product=6aa7c4a30b34d_etconp | 855 |
| 14 | 🔧 1. Common Construction Methods in Ethiopia
• Load-bearing Construction: Masonry walls support roof/floor loads – common in low-rise housing
• Reinforced Concrete Frame: Beams and columns form skeleton – standard for mid/high-rise buildings
• Precast Construction: Factory-made structural elements – saves time and ensures quality (less common locally)
• Formwork Systems: Timber, steel or plastic formworks used for casting concrete; EBCS recommends proper bracing
• Traditional Methods: Cob, adobe and stone masonry – still used in rural housing and cultural preservation
🧱 2. Key Building Materials in Ethiopia
• Cement: OPC and PPC are commonly used; comply with ES 1177 (Ethiopian Standard)
• Aggregates: Crushed stone and river sand – must meet MoWUD’s quality testing guidelines
• Reinforcement Steel: High-yield deformed bars preferred for structural work (check for bending & rust)
• Concrete Blocks: Widely used for non-load bearing walls; quality varies by local manufacturer
• Local Materials: Teff straw, bamboo, eucalyptus poles – used in traditional and low-cost housing
🧪 3. Material Quality Control Practices
• Cement Tests: Fineness, setting time, and compressive strength
• Concrete Work: Slump test (fresh), cube test (hardened) – done on-site or in lab
• Steel Rebar: Tensile test, elongation, and bend test – required before use
• Bricks/Blocks: Water absorption and compressive strength checks essential before masonry work
📌 4. Ethiopian Context Considerations
• Material Sourcing: Many sites rely on nearby quarries or local suppliers – quality control must be strict
• Labor Skills: Vary by region – some areas excel in stone masonry while others in RC frame work
• Weather Adaptation: Rainy season affects concrete curing, excavation, and material storage
@etconp | 1 850 |
| 15 | 👉Here are 50 points for a Construction expert
1. Unit weight of steel is 7850 kg/m³.
2. Height of the wall is 4m.
3. Unit weight of concrete is approximately 2400 kg/m³.
4. Standard brick size is 190mm x 90mm x 90mm.
5. Compressive strength of M20 concrete is 20 MPa.
6. Slump test measures the workability of concrete.
7. The minimum curing period for concrete is 7 days.
8. Shear force and bending moment diagrams are used to analyze beam loads.
9. The modulus of elasticity of steel is 200 GPa.
10. Water-cement ratio affects concrete strength and durability.
11. Effective span of a beam is the distance between centers of supports.
12. The permissible stress in mild steel (Fe250) is 250 MPa.
13. Dead load includes the self-weight of structural elements.
14. Live load includes the weight of occupants and movable objects.
15. The maximum deflection limit for beams is L/250.
16. Reinforced concrete design follows the principles of limit state design.
17. Young’s modulus of concrete ranges from 25 to 35 GPa.
18. The coefficient of thermal expansion of concrete is 10-6 /°C.
19. In RCC, tensile strength is provided by steel reinforcement.
20. Shear reinforcement is provided in the form of stirrups.
21. Clear cover for rebar in beams is typically 25mm.
22. Clear cover for rebar in slabs is typically 20mm.
23. Standard consistency of cement paste is about 30%.
24. The fineness modulus of fine aggregate ranges from 2.2 to 3.2.
25. The Poisson's ratio for steel is approximately 0.3.
26. The unit weight of water is 1000 kg/m³.
27. Specific gravity of cement is around 3.15.
28. The initial setting time of ordinary Portland cement is 30 minutes.
29. The final setting time of ordinary Portland cement is 10 hours.
30. Slump values for structural concrete typically range from 75 to 125 mm.
31. Maximum size of coarse aggregate in RCC is 20mm.
32. The tensile strength of concrete is approximately 10% of its compressive strength.
33. The allowable bearing capacity of soil should be determined through soil tests.
34. Plate load test is used to determine the bearing capacity of soil.
35. Permeability of soil affects the design of foundations and drainage systems.
36. Standard penetration test (SPT) assesses soil compaction and bearing capacity.
37. The unit weight of sand is approximately 1600 kg/m³.
38. Soil compaction increases the bearing capacity of soil.
39. Angle of repose indicates the stability of granular materials.
40. Cohesion is a measure of the shear strength of cohesive soils.
41. A cantilever beam is fixed at one end and free at the other.
42. Fixed-end moments are moments developed at fixed supports.
43. Bending stress in a beam is calculated using the formula σ = My/I.
44. Torsion in beams is caused by twisting moments or torques.
45. A simply supported beam has supports at both ends.
46. The moment of inertia of a rectangular section is bd³/12.
47. Deflection in beams can be calculated using integration methods.
48. Reinforcement bars should be free of rust and other contaminants.
49. Development length is the length required to transfer stress to concrete.
50. Hooked bars are used to anchor reinforcement in concrete.
👉የ RC ዲዛይን ላይ ሙሉ ቴምፕሌቶች ከፈለጉ ማለትም
⏺Calculation of Design Coefficients
⏺Design of Slabs
⏺Design of Flat Slabs
⏺Design of Beams
⏺Design of Sections Under M & N
⏺Shear Design & Checks
⏺Design for Torsion
⏺Design of Rectangular Columns
⏺Design of Circular Columns
⏺Design of Isolated Footings
Isolated Footings Under Moment እና ሌሎች👇
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| 16 | 👉ምርጥ ቤዝመንት ያለው G+5 ህንፃ ማለትም አርክቴክቸራል፣ስትራክቸራል፣ኤሌክትሪካል እና ሳኒተሪ ያካተተ በ Auto Cad የተሰራ ዲዛይን ከፈለጉ ከታች ባለው ሊንክ ያውርዱት👇
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| 17 |  👉በምስሉ ላይ እንደሚታየው ለስላብ ኮንክሪት ማፍሰሻ ዝግጅት ከእንጨት ሰሌዳዎች ይልቅ Plywood Sheets በጥራት ተዘርግተው ከላይ የቢም እና የስላብ ብረቶች እየተዘጋጁ ይገኛሉ።
📌 በምስሉ ላይ የሚታዩ እና የፕላይዉድ ዋና ዋና የምህንድስና ጥቅሞች፦
🔹 Smooth Concrete Surface (ልሙጥ ኮንክሪት)፦ ፕላይዉድ መጠቀም የኮንክሪቱ የታችኛው ክፍል (Soffit) በጣም ልሙጥ ሆኖ እንዲወጣ ያደርጋል፤ ይህም ከኮንክሪት በኋላ የሚሰራውን የፕላስተር ወጪ በእጅጉ ይ ቀንሳል።
🔹 Watertight Joints (የሲሚንቶ ውኃ አለመፍሰስ)፦ የፕላይዉድ ሉሆች ሰፊና እኩል በመሆናቸው በመካከላቸው ያለው ክፍተት በጣም አነስተኛ ነው፤ ይህም የሲሚንቶ ውኃ (Cement Slurry Leaks) እንዳይፈስ ይከላከላል።
🔹 Speed & Efficiency in Construction፦ በትናንሽ የእንጨት ሰሌዳዎች ከሚሰራው ይልቅ በትልልቅ የፕላይዉድ ሉሆች ፎርምወርክ ማንጠፍ የሳይት ስራውን በጣም ፈጣንና ቀልጣፋ ያደርገዋል።
⚠️ ለጥራት እና ለደህንነት የሚረዱ ወሳኝ የሳይት ማስታወሻዎች፦
1️⃣ Form Oil / Mold Release Agent፦ ኮንክሪት ከመፈሰሱ በፊት በፕላይዉዱ ላይ የፎርምወርክ ዘይት (Form Release Oil) መቀባት ፕላይዉዱ ከኮንክሪት ጋር እንዳይጣበቅ እና በቀላሉ እንዲነሳ ይረዳል።
2️⃣ Sealing Edge Joints፦ በፕላይዉድ ሉሆች መካከል ያሉትን ጥቂት ክፍተቶች በማስኪንግ ቴፕ ወይም በፎም (Tape/Foam) ማሸግ የሲሚንቶ ውኃ ፍሰትን ሙሉ በሙሉ ያስቀራል።
3️⃣ Reusability & Care፦ ፎርምወርክ በሚነቀልበት ጊዜ ፕላይዉዱ እንዳይሰባበር ጥንቃቄ ማድረግ፤ በጥሩ ሁኔታ ከተያዘ ለበርካታ ጊዜያት (Multiple Reuses) ማገልገል ይችላል።
@etconp | 1 952 |
| 18 |  👉በህንፃ ግንባታ ላይ በብዛት የምንጠቀመው "Dog-legged Staircase"! 🪜🏗️
🌟በምስሉ ላይ እንደሚታየው በሁለት ደረጃዎች (Flights) ተከፍሎ የ 180 ዲግሪ አቅጣጫ ለውጥ የሚያደርገው የደረጃ አይነት ዶግ-ሌግድ ስታርኬስ (Dog-legged Staircase) ይባላል።
💡 የ Dog-legged Staircase ዋና ዋና ባህሪያት እና ጥቅሞች፦
1️⃣ ቦታ ቆጣቢነት (Space Efficiency)፦ አነስተኛ ቦታ በሚፈልጉ የመኖሪያና የንግድ ህንፃዎች ውስጥ በቀላሉ የሚገነባ እና ቦታ የማያባክን ነው።
2️⃣ የመሃል ክፍተት አለመኖር (No Open Well)፦ በሁለቱ ደረጃዎች መካከል ክፍት ቦታ (Open space/Well) ስለሌለ ደህንነቱ የተጠበቀ ነው።
3️⃣ ቀላል አሰራር (Simple Construction)፦ የቅርጽ (Formwork) እና የብረት ዝርጋታ (Rebar Detailing) ስራው ከሌሎች የደረጃ አይነቶች አንጻር ቀላል እና ፈጣን ነው።
ጥራት ያለው የደረጃ ግንባታ — ለህንፃዎ ምቾት እና ደህንነት ዋና መሰረት ነው🤝
🌐ለተጨማሪ መረጃ እና ሌሎች የኮንስትራክሽን ዘርፍ ዜናዎች የ YouTube ገፃችን ከታች ባለው ሊንክ በመግባት SubScribe አርገው ቤተሰብ ይሁኑ👇
https://youtube.com/@ethiopianconstruction7?si=ils307xXQQpIdCwG
@etconp | 1 730 |
| 19 | 👉Elements of a Building Structure 🏗️
🏛A building is made up of several interconnected structural and functional elements.
🚥Each element has a specific role in providing strength, stability, protection, comfort, and durability.
1. Weathering Course – Protects the roof/parapet from rainwater and weather effects.
2. Coping – A sloped protective layer on top of a parapet that helps drain rainwater.
3. Parapet Wall – Low wall constructed above roof level for safety and edge protection.
4. Ceiling – Provides a finished surface below the roof slab and conceals services.
5. RCC Roof Slab – Reinforced concrete slab that carries roof loads and transfers them to supporting members.
6. Lintel – Horizontal structural member provided above doors and windows to support masonry above openings.
7. Sunshade/Chhajja – Projects beyond openings to provide shade and protect doors/windows from rain.
8. Window – Provides natural light, ventilation, and external views.
9. Window Sill – The bottom horizontal portion of a window opening.
10. Brick Wall – Provides enclosure, separation, and protection; its structural role depends on the building system.
11. Damp-Proof Course (DPC) – Prevents moisture from rising through walls by capillary action.
12. Flooring – Provides a durable and finished walking surface.
13. Ground Level (GL) – Reference level indicating the existing or finished surrounding ground.
14. Footing – Transfers and distributes column/wall loads safely to the supporting soil.
15. PCC/Base Concrete – Provides a clean, level and stable base beneath the footing.
🌟Important Construction Points
RCC members should be designed and detailed according to the applicable structural code and project design.
Proper reinforcement, concrete cover, anchorage and development length are essential for RCC durability and strength.
Concrete requires adequate compaction and curing.
DPC and proper roof drainage are important for controlling moisture.
Actual dimensions and thicknesses must be based on structural design, architectural requirements, loads, soil conditions and applicable local codes.
Note: The image mentions IS 456:2000, which is the Indian code for plain and reinforced concrete—not “IS 456:200.” IS 13920 relates to ductile detailing of RC structures for seismic resistance.
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| 20 | 👉ኳንቲቲ ሰርቨይንግ በቀላሉ ለመረዳት እና ቴክ ኦፍ እንዲሁም Cost Breakdown ለማዘጋጀት የሚጠቅም ምርጥ መፅሐፍ ከታች ባለው ሊንክ ያውርዱት👇
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