👉የጠቅላላ ሁኔታ ኮንስተራክሽን ውል (General Condition of contract)
.
▶የኮንስትራክሽን ሳይት ላይ አንድ ህንፃ ተቌራጭ ስራውን ለማከናወን ወደ ኮንስትራክሽን ሳይት የሚያስገባቸው የህንፃ ግብዓቶች ከኮንስትራክሽን ሳይት የማስወጣት መብቱ ምን ያህል
ነው ድረስ ነው?

▶አማካሪ/መሐንዲሱ/ ስራው አልቌል ብሎ እስካልተስማማ ድረስ እቃ ወይም ሰራተኛ ለማመላለስ ከሚወጣ መኪና በስተቀር ማንኛውም ለፕሮጀክቱ የተመደበ የህንፃ ግብዓት ከኮንስትራክሽን ሳይት እንዳይወጣ በደብዳቤ መከልከል ይቻላል።

83. Ownership of plant and material

83.1 All equipment, temporary works, plant and materials provided by the Contractor shall, when brought on the Site, be deemed to be exclusively intended for the execution of the works and the Contractor shall not remove the same or any part thereof, except for the purpose of moving it from
one part of the site to another, without the consent of the Engineer. Such consent shall, however, not be required for vehicles engaged in transporting any staff, labor, equipment, temporary works, plant or materials to or from the Site.

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📍 @ልደታ መርካቶ ህንፃ 6ኛ ፎቅ #644

YEHA Engineering | Interior | Training

Time history analysis provides the various mode shapes and direction of structure which varies as per specified time-acceleration function and these mode shapes varies as dynamic structural response under various loading.

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በ ቅርቡ በ ዩቲዩብ የ ETABS ቲቶሪያል እንጀምራለን

Soon we will start ETABS tutorial on our YouTube channel

መገጭ ግድብ ፕሮጀክት

የመገጭ ግድብን ለማጠናቀቅ ከሁለት አመታት በላይ ጊዜ ያስፈልጋል ተብሏል

ከተጀመረ 14 አመታት ያስቆጠረውን የመገጭ ግድብ ሙሉ ለሙሉ ለማጠናቀቅ ተጨማሪ ከሁለት አመታት በላይ ጊዜ እንደሚያስፈልግ የመስኖ እና ቆላማ አካባቢ ሚኒስቴር አስታወቀ። ግድቡ እስካሁን 65 በመቶ ተከናውኗል።

በአማራ ክልላዊ መንግሥት በጎንደር ከተማ አስተዳደር ጠዳ ወንዝ ላይ በ2001 ዓ.ም የተጀመረው እና አስራ አራት አመታትን ያስቆጠረው የመገጭ ግድብ የግንባታ ሂደት የመዘግየት ዋነኛ ምክንያት የግንባታ ግብአት እጥረት እንደሆነም ሚኒስቴሩ አስታውቋል።

የሚኒስቴሩ የሕዝብ ግንኙነት እና ኮሙኒኬሽን ሥራ አስፈጻሚ አቶ ብዙነህ ቶልቻ እንደሚሉት የመገጭ ግድብ ግንባታ በሚፈለገው ፍጥነት እየተሠራ ባይሆንም የግንባታ ሂደቱ እየተከናወነ ነው። ሆኖም ከፍተኛ የሆነ የብረት እና የሲሚንቶ አቅርቦት እጥረት መኖሩ ለግንባታው ሂደት መጓተት በቀዳሚነት የሚጠቀስ ነው።

የግብአት ዕጥረት ለመቅረፍ በተለይ የሲሚንቶ አቅርቦትን በቀጥታ ከፋብሪካ የሚያገኝበትን ሁኔታ በማመቻቸት እንዲሁም ከንግድና ቀጣናዊ ትስስር መሥሪያ ቤት ጋር በመነጋገር ለማቅረብ ጥረት ሲደረግ ቆይቷል። በዚህም ግንባታውን ከተቻለ ቀደም ብሎ ለማጠናቀቅ ካልሆነም በተያዘለት ጊዜ ለማጠናቀቅ ጥረት እየተደረገ ይገኛል ብለዋል።

የመገጭ ግድብ 77.1 ሜትር ከፍታ እና 890 ሜትር ስፋት ያለው ሲሆን 185 ሚሊዮን ሜትር ኪዩብ ውሃ የመያዝ አቅም አለው። ከሚይዘው ውሃም 116 ሚሊዮን ሜትር ኪዩብ ውሃ በጎንደር እና አካባቢው ለመስኖ ልማት የሚውል ሲሆን ከ14 እስከ 17 ሺህ ሄክታር መሬት በማልማት ከ34 ሺህ በላይ ገበሬዎችን ተጠቃሚ ያደርጋል ብለዋል።

Via አዲስ ዘመን

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👉Stone Masonry Construction:

🚧Stone is the most durable, strong and weather-resistant construction material compared with any others. These are less affected by daily wear and tear.

🌟Masonry structures made out of stone hence last for a longer period. It has a life period of 300 to 1000 plus years. Due to it's numerous advantageous, it is widely used in masonry construction.

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👉What is Liquidated damage?

➡ስራ ተቌራጩ ለወሰደው ውል በግዜ ላለመጨረሱ ለባለቤት ወይም ለውል ሰጪው አካል የሚከፍለው የካሳ ክፍያ ሲሆን∷

⚡️የጠቅላላ ኮንስትራክሽን ውል ይህ ሳይሆን ሲቀር ከዚህ በታች በተጠቀሰው ቅጣት መሰረት ስራ ተቌራጩ መቅጣት እነደሚቻል ይጠቅሳል።

1. ቅጣቱ 0.1 ፐርሰንት ወይም የጠቅላላ ፕሮጀክቱን አንድ አንድ
ሺኛ (1/1000) ላልፈፀመው ስራ ቀናት በየቀኑ ሊቀጣ ይገባል።

2. ነገር ግን ስራ ተቌራጩ በጠቅላላው ሊቀጣ የሚችለው የፕሮጀክቱን አስር 10% (አስር ፐርሰንት) ሊበልጥ አይገባም።

⏩"Liquidated damages" means the compensation stated in the contract as being payable by Contractor to the Public Body for failure to perform the contract or part thereof within the periods under the contract, or as payable by Contractor to the Public Body for any specific breach identified in the contract;

(a) A penalty of 0.1% or 1/1000 of the value of undelivered Service for each day of delay until actual delivery or performance,

(b) The cumulative penalty to be paid by the Contractor shall not exceed 10% of the contract price.

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👉ADMIXTURES
~~~~~
➡Admixtures are the special ingredients added during concrete mixing to enhance the properties and performance of fresh concrete. Various types of
admixtures are available in the market which is used in construction work.

▶FUNCTION OF ADMIXTURES

1. To accelerate or retard the setting time of fresh
concrete.
2. To improve the workability or flow ability of concrete.
3. To increase the strength and durability of concrete.
4. To reduce the heat of hydration.
5. To reduce the segregation and bleeding.
6. To decrease the permeability.
7. To achieve other desired properties.

▶TYPES OF ADMIXTURES:

1. ACCELERATING ADMIXTURES: This admixture is added in concrete or mortar for
increasing the rate of hydration of hydraulic cement and for shortening the setting time. Calcium chloride (CaCl2) is the most widely used
accelerating admixture.

2. RETARDING ADMIXTURES:
Retarding admixtures delay the initial rate of hydration of cement and extend the setting time of cement paste.
This admixture can be used in high temperature and where the concrete has to be transported to a long distance. It is also suitable for using in grouting oil wells.

3. AIR-ENTRAINING ADMIXTURES: Air entraining admixtures help to produce a certain amount of air bubbles in the concrete mixture.
The main goal of this admixture is to increase the resistance against freeze-thaw degradation and cohesion.
It also improves the workability of fresh concrete without changing the setting or the rate of hardening.

4. WATER REDUCING ADMIXTURES: As the name suggest, water reducers are added to a concrete mixture, mortar or grout to increase the flow ability without increasing the water content.

⏺Advantages Of Water Reducing Admixtures

1. The rate of concrete placement is faster.
2. Strength, durability, density etc. are significantly improved.
3. Segregation, permeability and cracking are reduced.

🌟SPECIAL ADMIXTURES:

1. Super plasticizing admixtures.
2. Corrosion-inhibiting admixtures.
3. Grouting admixtures.
4. Coloring admixtures etc.

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👉ውድ ቤተሰቦቻችን እስቲ ዛሬ የ እረፍት ቀናቹ ነው

🌟ስለዚህ ቻናል ያላቹ ማነኛውም አስተያየት ፃፉልን

🚧እንዲሁም የምትፈልጉት ማነኛውም ጥያቄ መፅሐፍ ወይም ሶፍትዌር ካለም መጠየቅ ትችላላቹ።

📩 @Philemona7 መልእክታቹ አስቀምጡልን🙏

@etconp

👉በነገራችን ላይ የመወያያ ግሩፓችን @COTMp በቀን ብዙ ጥያቄዎች ይስተናገዱበታል።

🚧ከ 8700 በላይ ቋሚ አባላት አለው።

🚧ብዙዎቻችን እንደ ቤተሰብ ሆነንበታል ምክንያቱም ሁሉም ጥያቄዎ ለመመለስ በደስታ የሚጠብቅበት ግሩፕ ነው።

⚡️እንዲሁም ይበልጥ ተጋግዘን ለመማር ወዳጅዎ Add Member ያርጉት።

🔖ጥያቄ? ካለዎት፣ ሌሎችን ማገዝ ከፈለጉ ከታች ባለው ሊንክ ይቀላቀሉን።👇

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ምክንያት ?

Reason

📍 somewhere in Africa

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👉Most Influential Civil Engineers Throughout History

🌟Squire Whipple (1804 - 1888)

Known as the “Father of Iron Bridge Building”, Squire Whipple was born in in Hardwick Massachusetts and graduated from the private Union College in New York. He quickly became known as a highly skilled bridge builder and he is particularly celebrated for the bowstring arch truss design which he patented in 1841.

Squire Whipple designed and built a weight lock scale that had a capacity of 300 tons, which proved especially useful to build bridges. He used his invention to weigh canal boats and also built several short span iron bridges for the New York and Erie Railroad. His patented designs include the Bowstring iron-bridge truss and the Lift draw bridge. Although Several of Squire’s bridge designs became known around the world, and many of which are still in use, he’s perhaps best known for his work on the Erie Canal.

#ConstructionHistory

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👉ስለ ሐመር ቴስት

➡ሐመር ቴስት/Hammer test/ አፍራሽ ያልሆነ (Non destructive) የአርማታ ጥንካሬ ደረጃ ማወቂያ ፍተሻ ሲሆን ትክክለኛ እና ፈጣን መመርመሪያ ዘዴ ነው።

▶ሐመር ቴስት የሚከናወንበት መንገድ ስፕሪንግ መቆጣጠርያ ያለውን ክብደት መለኪያ መሳርያ ከላይ በምስል እንደሚታየው የአርማታውን ገፅ ተጭኖ በመያዝ መልሶ የሚመታበትን አሀዝ
ልኬት መዝግቦ በመያዝ ይሆናል።

▶የሐመር ቴስት አላማውም ከዚህ በታች የተዘረዘሩትን ያካትታል፤

1. የአርማታ የመታመቅ አቅም/compressive strength/
ለማወቅ።

2. የአርማታውን አንድ አይነትነት ወይም ወጥነት ለመገምገም።

3. የአርማታውን ክብደት የመሸከም አቅምን ከተወሰነለት ዲዛይን አንፃር ትክክል መሆኑን ለማረጋገጥ።

▶የሐመር ቴስት ከማሰራት በፊት ሊደረግ የሚገባ ቅድመ ሁኔታዎች

1) የአርማተዉ ገፅ የለሰለሰ፣ንፁህ እና ደረቅ መሆን ይጠበቅበታል
2) ናሙና የሚወሰደው ቦታ ቢያንስ 20ሚሊ ሜትር ከጠርዝ ሊርቅ ይገበዋል።

3) ስድሰት (6) ንባብ ከእያንዳንዱ የአርማታ አካል ይወሰዳል፤ አማካይ ስሌት ተሰርቶ ጥንካሬ መለኪያ ይደረጋል።

4) አርባ አምስት(45) ቀን የሞለው አርማታ መሆን ይጠበቅበታል።

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