👉በግንባታ ሳይቶች የደህንነት ባለሙያ ምደባ ግዴታ ሊሆን ነው

በኮንስትራክሽን ዘርፍ ላይ ለሚፈጠሩ የደህንነት ስጋቶችና አደጋዎች አንዱ መንስኤ በቂ የግንባታ የደህንነት ባለሙያ ባለመኖሩ በመሆኑ፣ ይህንን ችግር ለመቅረፍ በአዲስ አበባ በግንባታ ሳይቶች ላይ የደህንነት ባለሙያ እንዲኖር እንደሚደረግ ተጠቁሟል።

የአዲስ አበባ ከተማ አስተዳደር ግንባታ ፍቃድና ቁጥጥር ባለስልጣን ከአጋር አካላት ጋር በመሆን ለ3 ቀናት የሚቆይ የግንባታ ደህንነት ስልጠና መሰጠት ጀምሯል።

በስልጠና ማስጀመሪያው የተገኙት በምክትል ከንቲባ ማዕረግ የአዲስ አበባ ከተማ ዋና ስራ አስኪያጅ ኢንጂነር ወንድሙ ሴታ፣ አዲስ አበባን እንደ ስሟ አዲስ፣ ለደህንነት የተመረጠችና ዘመናዊ ከተማ የምናደርጋት የኮንስትራክሽን ዘርፍን ይዘን ነው ብለዋል።

በኮንስትራክሽን ዘርፍ የሚሰማራ ዜጋ ሁሉ፣ ከአደጋ የፀዳ እና ደህንነቱ የተጠበቀ የሥራ ቦታ እንዲኖረው ለማድረግ በትኩረት እየተሠራ መሆኑንም ኢንጂነር ወንድሙ ሴታ ገልፀዋል።

በኮንስትራክሽን ዘርፍ ላይ ለሚፈጠሩ የደህንነት ስጋቶችና አደጋዎች አንዱ መንስኤ በቂ የግንባታ የደህንነት ባለሙያ ባለመኖሩ እንደሆነ ተገልጿል።

ይህንን ችግር ለመቅረፍ በቀጣይ በአዲስ አበባ በግንባታ ሳይቶች ላይ የደህንነት ባለሙያ እንዲኖር እንደሚደረግ ተጠቁሟል።

በተያዘው በጀት ዓመት ግንባታ ላይ የሚሠሩ ሁለት ሺህ ዜጎችን ስልጠና ለመስጠት መታቀዱ ተገልጿል።

ሰልጣኞች በበኩላቸው፣ የሥራ ላይ ደህንነትን ለማስጠበቅ ያለመ ስልጠና መሰጠቱ የሠራተኞችን ደህንነት ከመጠበቁ ባሻገር ከተማዋ ያለመችውን የግንባታ ጥራት ማስጠበቅ ይችላል ብለዋል።

Via AMN

@etconp

👉What Is Roof Structure On Building Construction

⏺A roof structure is the framework that supports the roof covering and transfers loads (such as weight, wind, snow, and seismic forces) to the walls and foundation of a building.

⏺The design and materials used depend on the building's style, climate, and architectural requirements.

📜Main Components of a Roof Structure:

1. Rafters
- Sloping beams that run from the ridge (top) to the eaves (edges) of the roof.
- Traditional in pitched roofs (e.g., gable or hip roofs).

2. Trusses
- Prefabricated triangular frameworks made of wood or steel.
- More cost-effective and stronger for large spans than rafters.
- Common in modern residential and commercial buildings.

3. Purlins
- Horizontal beams that support rafters or trusses, adding extra stability.
- Often used in metal roofing or large-span structures.

4. Ridge Board
- The top horizontal beam where rafters meet in a pitched roof.

5. Joists (Ceiling Joists)
- Horizontal beams that connect walls and support the ceiling below.

6. Battens
- Thin strips of wood or metal fixed to rafters/trusses to support roof tiles or sheets.

7. Decking (Sheathing)
- A layer (usually plywood or OSB) that provides a base for roofing materials like shingles or tiles.

8. Fascia & Soffit
- Fascia: Vertical board at the roof’s edge, supporting gutters.
- Soffit: Horizontal underside of the eaves, providing ventilation.

⭐️Types of Roof Structures:

1. Pitched (Sloped) Roofs
- Gable Roof: Two sloping sides meeting at a ridge (△ shape).
- Hip Roof: All sides slope downward to the walls.
- Mansard Roof: Four-sided with two slopes on each side.

2. Flat Roofs
- Nearly horizontal with a slight slope for drainage.
- Common in commercial buildings; uses membranes (EPDM, TPO) or built-up roofing (BUR).

3. Curved Roofs
- Arched or dome-shaped, often seen in modern or industrial designs.

4. Gambrel Roof
- Similar to a barn roof, with two slopes on each side.

🏷Materials Used in Roof Structures:

- Wood (common for rafters & trusses in homes).
- Steel (used in trusses for large buildings).
- Concrete (in flat roofs or heavy-load structures).
- Engineered Wood (e.g., glulam beams for long spans).

🏷Functions of a Roof Structure:

✔ Load-Bearing – Supports roof weight, snow, wind, and live loads.
✔ Protection – Shields from weather (rain, sun, snow).
✔ Insulation & Ventilation – Helps regulate temperature and moisture.
✔ Aesthetic Appeal – Defines architectural style.

@etconp

👉ጥቆማ ለ ትምህርት ፈላጊዎች

💫በ School of Built Environment
በ Department of Architecture, አዲስ አበባ ዩኒቨርስቲ የሚሰጠውን የድህረ ምረቃ ፕሮግራም ለመከታተል መረጃውን ከተያያዘው ምስል ማግኘት ይቻላል።

@etconp

👉In slab and beam construction, the terms top bar, bottom bar, and negative bar refer to the placement and function of reinforcement steel (rebar) within the structural elements.

🏷Here's a breakdown of each:

🚧1. Bottom Bar

⏺Location: Placed at the bottom of the slab or beam.

⏺Purpose:

- Resists positive bending moments (sagging) in the mid-span regions.
- Helps carry tensile stresses that occur at the bottom when the slab/beam bends downward.

⏺Example: Used in the center of a simply supported beam where maximum sagging occurs.

🚧2. Top Bar

⏺Location: Placed at the top of the slab or beam.

⏺Purpose:

- Resists negative bending moments (hogging) near supports (like columns or fixed ends).
- Handles tensile stresses at the top when the beam/slab bends upward.

⏺Example: Used near beam-column junctions or continuous supports where the slab/beam tends to bend upwards.

🚧3. Negative Bar (A type of top reinforcement)

⏺Location: Specifically placed in the top zone over supports (like beams or columns).

⏺Purpose:

- Counteracts negative moments (hogging) that develop due to restraint at supports.
- Prevents cracks at the top surface near supports.

⏺Key Difference from General Top Bar:
- Negative bars are additional reinforcement concentrated over supports, while general top bars may run along the entire span.


⭐️Practical Application

- In a continuous slab, bottom bars run along the span, while top (negative) bars are added over beams to prevent cracking.
- In cantilever beams/slabs, top bars are crucial since the entire section experiences negative moment.

⏺Understanding these reinforcements ensures proper structural behavior under loads.

@etconp

👉በአዲስ አበባ ብቻ 141 ሰዎች በሕንፃ ግንባታ ሥራ ላይ በደረሰ አደጋ ሕይወታቸው ማለፉ ተገለጸ

🚧ከ 2015 እስከ 2017 በጀት ዓመት በተሰራ ጥናት መሠረት በሁለት ዓመት ውስጥ ብቻ 141 ሰዎች በሕንጻ  የግንባታ ሥራ ላይ በደረሰ አደጋ ሕይወታቸው ማለፉን የአዲስ አበባ ግንባታ ፈቃድና ቁጥጥር ባለስልጣን ለአሐዱ አስታውቋል።

ሕይወታቸውን ያጡ ዜጎች በሁሉም የእድሜ ክልልና ፆታ የሚገኙ መሆናቸውን የገለጹት የባለስልጣን መስሪያቤቱ ም/ዋና ዳይሬክተር ኢንጂነር አበበ እሸቱ ናቸው።

በተደረገው ጥናት መሠረት የሞታቸው መንስኤ ተብለው የተለዩት፤ የመጀመሪያው ጥንቃቄ ባልተሞላበት መንገድ የደህንነት ቀበቶ፣ ጫማ እና ኮፍያ የመሳሰሉትን ሳያደርጉ ሲሰሩ የነበሩ ሠራተኞች ከከፍታ ላይ መውደቃቸው ስለመሆኑ ተናግረዋል።

ከዚህ ሌላም በግንባታው ቦታ ላይ በሚያጋጥም የኤሌክትሪክ አደጋ ሲሆን፤ የተላጠ ኤሌክትሪክ በሚይዙበት ወቅት ወይም መብራት ሳያጠፉ በሚሰሩበት ጊዜ የሚከሰት እንደሆነ ተናግረዋል።

በተጨማሪም ከላይ ብሎኬት ወይም ድንጋይ በመውደቁ ከሥር ያለውን ባለሙያ ሔይወት ያጠፋበት ሁኔታ ስለመኖሩ ም/ዋና ዳይሬክተሩ አንስተዋል።

ሕይወታቸውን ካጡ ዜጎች መካከል አብዛኞቹ የሕንፃ ግንባታ ሠራተኞች መሆናቸውን አንስተው፤ አንዳንዶች ግን ህንፃውን ለመጎብኘት ወይም ለመግዛት የሚሄዱ ሰዎች ላይ ጭምር አደጋው መከሰቱን ገልጸዋል።

ም/ዋና ዳይሬክተሩ አክለውም እነዚህ አደጋዎችም በቀላሉ ጥንቃቄ ቢደረግ ኖሮ መከላከል እና የሞት አደጋን ማስቀረት የሚቻልበት ሁኔታ እንደነበረ አስረድተዋለ።

በመሆኑም የሕንፃ ግንባታ ደህንነትን በተመለከተ በሰፊው እየተሰራ በሚገኝበት በዚህ ወቅት፤ ከበፊቱ የሞት አደጋ እየቀነሰ ስለመምጣቱ ተናግረዋል።

Via አሐዱ ሬዲዮ

@etconp

👉Why Bars Are Bent In Slabs Near At Support

📜Bent up bars: Are the main reinforcements bent at a suitable angle to act as shear reinforcements.

⏺Reinforcements are bent up to the supports/ends where greater compressive force occurs.

📍Bars Are Bend Near At Support To

🔰1- To resist shear force.

🔰2-To resist (NBM) adjacent at supports.

🔰3- To increment the strength of RCC in the slab.

🔰4- Bent Up bar can abate the amount of steel.

🔰5- Bent up bars in the slab is more strong form normal slab.

🔰6- Bent up bars sufficiently increase the deformation capacity of slabs as compared to those not having bars bent.

🔰7- By extending bars up to supports, we can also lower the risk of brittle failure due to higher compressive stresses causing the structure to collapse.

💫There are two patterns to bend the bars

🚧1- Single lattice system

🚧2- Double lattice system

⏺Bent up bars (any type) are always provided with vertical or inclined stirrups.

⏺Bent up bars are used for the economization of material.

@etconp

ADVERTISMENT

ታምራት ፕሌት እና ጄ ቦልት አቅራቢ

✅የምንሰጣቸው አገልግሎቶች

🔅 ፕሌት any Size & thickness
🔅 ጄ ቦልት (ጥርስ ማዉጣትና ማጠፍ)

🔅 የተለያዩ  [modefic] ስራዎችን እንሰራለን።

♦️ ማንኛዉንም ብረታ ብረት እንገዛለን።

☎️ስልክ 0904040477 ወይም 0911016833 ደውለው ያግኙን
📱ቴሌግራም ላይ ፦https://t.me/heavenic1

አድራሻ፦  ቁ 1.መርካቶ
                ቁ.2 አየር ጤና  ኪዳነ ምህረት

ጥራትና ታማኝነት መለያችን ነው።
ታምራት ፕሌት እና ጄ ቦልት አቅራቢ

👉The North Direction Mark (often represented as a North Arrow) is a standard element on floor plans, site plans, and blueprints for several important reasons:

🚧1. Orientation & Clarity

- Helps users (architects, engineers, builders, clients) understand the directionality of the building or site in relation to true north, magnetic north, or project north.
- Ensures everyone reads the plan consistently, avoiding confusion during construction or site analysis.

🚧2. Sunlight & Shadow Analysis

- Critical for solar studies—determining how sunlight enters the building at different times of the day/year.
- Affects decisions on window placement, shading devices, and energy efficiency.

🚧3. Wind & Ventilation Planning

- Architects and engineers use the north arrow to assess prevailing wind directions, which influences natural ventilation strategies.

🚧4. Legal & Regulatory Compliance

- Many building codes and zoning laws require a north arrow to verify proper site orientation and compliance with setback, sunlight access, or environmental regulations.

🚧5. Construction & Surveying Accuracy

- Contractors and surveyors rely on the north mark to align the structure correctly on the site.
- Ensures foundations, roads, and utilities are placed as designed.

🚧6. Standard Practice in Drafting

- A universally recognized convention in architectural, engineering, and cartographic drawings for consistency.

💫Types of North Arrows

- True North (Geographic North) – Points toward the Earth’s North Pole.
- Magnetic North – Aligns with the Earth’s magnetic field (used in compass readings).
- Project North (Assumed North) – Sometimes rotated for drawing convenience (must be clearly noted).

💫Where Is It Placed?

- Typically in the title block, legend, or a prominent corner of the drawing.
- Often accompanied by a scale bar and graphic scale for reference.

📜Conclusion

⏺The North Direction Mark is essential for accurate design, legal compliance, and construction precision.

⏺Without it, misinterpretations could lead to costly errors in building placement, energy performance, or regulatory violations.

@etconp

👉 INTERCON Construction Chemicals 

● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Wall Putty, Prime Coat
● Concrete Repair Mortar
● Floor hardener, Epoxy
● Grout, Self-level mortar
● Quartz paint, Contextra
● Tile Adhesive & Tile Joint Fillers 
● Geotextiles and other construction chemicals and materials

Tel: 0961955555
Address: Signal, around signal mall

👉በሊዝ የተያዘ መሬት ላይ ግንባታ መጀመሪያና ማጠናቀቂያ የጊዜ ገደብ

✂️ሀ) ግንባታ ማስጀመሪያ

አንድ ግለሰብ/ድርጅጥ በከተማ ቦታ ላይ በሊዝ የተረከበው ቦታ ላይ የሊዝ ውል ከፈረመበት ቀን ጀምሮ ለቦታው በተቀመጠው ደረጃ መረሰት ግንባታ እንዳለበት የሚደነግግ የጊዜ ጣሪያ ተቀምጧል።

በሊዝ ቦታ ላይ የግንባታ መጀመሪያ የጊዜ ጣሪያ፦ ለአንሰተኛ ደረጃ ግንባታዎች = 6 ወር፣ ለመካከለኛ ደረጃ ግንባታዎች = 9 ወር፣ እና ለከፍተኛ ደረጃ ግንባታዎች = 18 ወር ነው።

ሆኖም ግን እስንደአካባቢው ነባራዊ ሁኔታ ወይም በተለያዩ ምክንያቶች በተጠቀሱት የጊዜ ገደቦች ግንባታ ሳይጀመር ቢቀር ለአንድ ዙር ብቻ የሚፈቀድ ለአንሰተኛ ደረጃ ግንባታዎች  6 ወር፣ ለመካከለኛ ደረጃ ግንባታዎች 9 ወር፣ ለከፍተኛ ደረጃ ግንባታዎች አንድ ዓመት ተጨማሪ የግንባታ ማስጀመሪያ ጊዜ በግንባታ ፍቃድ ሰጪው አካል ከማስጠንቀቂያ ደብዳቤ ጋር ሊሰጣቸው ይችላል።

✂️ለ) ግንባታ ማጠናቀቂያ

በሊዝ ቦታ ላይ ግንባታ የማጠናቀቂያ የጊዜ ገደብ፦ ለአንሰተኛ ደረጃ ግንባታዎች 24 ወራት፣ ለመካከለኛ ደረጃ ግንባታዎች 36 ወራት፣ እና ለከፍተኛ ደረጃ ግንባታዎች  48 ወራት ነው።

ነገር ግን የአካባቢው የግንባታ ፍቃድ ሰጪ አካል ካመነበት የግንባታውን ውስብስብነት እያየ ሊያራዝምለት ይችላል።

ሆኖም ግን ለግንባታ ማጠናቀቂያ የሚሰጠው ጊዜ በማንኛውም ምክንያት (ሁኔታ) ቢሆን ለአንሰተኛ ደረጃ ግንባታዎች  2 ዓመት 6 ወር፣ ለመካከለኛ ደረጃ ግንባታዎች 4 ዓምት፣ እና ለከፍተኛ ደረጃ ግንባታዎች ከአምስት ዓመት መብለጥ የለበትም።

@etconp

👉Calling all architecture students and recent graduates (2017 E.C.)!

🚧Join us for the first Information Session of the Student Design Competition – Celebrating Sustainable Design and Urban Culture 🌍✨

📅 Monday, 18 August 2025
🕓 4:00 PM – 5:00 PM | 10 to 11 Local Time
📍 Google Meet → https://meet.google.com/zdp-dshg-wwi

📜This is your opportunity to:

✅ Get clarity on the competition guidelines
✅ Ask questions directly to the organizers
✅ Prepare your best pavilion design idea!

ℹ️ No registration needed for the competition or the info session — just join in!

@etconp

👉ፉካ (Grooving) ምንድነው?

💫In building construction, grooving serves several important purposes, primarily related to concrete slabs, pavements, and masonry walls.

📜Here are the key purposes of grooving:

🚧1. Control of Cracking (Contraction Joints)

- Grooves are cut into concrete slabs to create controlled joints that help prevent random cracking caused by shrinkage, temperature changes, or settling.
- By providing a weakened plane, cracks are directed along the groove rather than appearing randomly.

🚧2. Enhancing Skid Resistance

- In pavements, roads, and industrial floors, grooving improves traction by creating a textured surface.
- This is especially important in airport runways, highways, and parking garages to prevent skidding in wet conditions.

🚧3. Expansion Joints

- Grooves allow for thermal expansion and contraction of concrete, reducing stress buildup that could lead to cracks or buckling.

🚧4. Aesthetic and Architectural Design

- Grooves can be used decoratively in concrete walls, floors, and facades to create patterns or textures.
- They help in segmenting large surfaces for visual appeal.

🚧5. Drainage Improvement

- In pavements and outdoor slabs, grooves can channel water away, reducing ponding and improving safety.

🚧6. Structural Stress Relief

- In masonry and brickwork, grooves (such as control joints) help manage movement due to thermal changes or settling.

⭐️Common Applications:

- Concrete floors & pavements (control joints)
- Roads & runways (skid resistance)
- Brick & masonry walls (expansion control)
- Decorative concrete finishes

🔰Methods of Grooving:

- Saw-cutting (post-placement)
- Tooled joints (during concrete finishing)
- Formed grooves (using inserts before pouring)

❇️Grooving is a preventive and functional technique that enhances durability, safety, and aesthetics in construction.

@etconp