Pop Quiz
What is a DRAGLINE used for ?
A. For demoting building
B. For digging trenches
C. For trench excavation of clay
D. For bulk excavation of losse soils
👉Use discussion group
@engineersWorks
What is a DRAGLINE used for ?
A. For demoting building
B. For digging trenches
C. For trench excavation of clay
D. For bulk excavation of losse soils
👉Use discussion group
@engineersWorks
Quatio. ✔️Roller Compacted Concrete (RCC) ከኖርማሉ ኮንክሪት በምን ይለያል??
Ans. 👉Roller Compacted Concrete (RCC) ከኖርማሉ ኮንክሪት የሚለየው በ Mix ratio ነው፡፡ ይኸውም RCC ላይ የምንጠቀመው የውሀ መጠን በጣም አነስተኛ ነው፡፡ ኮንክሪቱ Compact የሚደረገው በሩሎ ወይም በ Roller Compactor ነው፡፡ በሀገራችንም ታላቁ የህዳሴ ግድብ (GRD) እና ግልገል ጊቤ 3 በዚህ ነው የተገነቡት፡፡ RCC ከኖርማሉ ኮንክሪት በተሻለ እድሜና ጥንካሬ አለው።
.
Quation. ✔️Bending moment ቢም ላይ ትልቅ ተፅዕኖ የሚኖረው በምን Axis ላይ ነው?
Ans. 👉A- Z axis ላይ
.
Quation. ✔️elastic እና inelastic ማቴሪያሎች ልዩነታቸው ምንድነው? ductility ምንድነው?
Ans. 👉Elastic material = load remove ሲደረግ ማቴሪያሉ ወደ ቀድሞ ቦታው የሚመለስ ከሆነ
.
Plastic / Inelastic Material = load remove ሲደረግ የተወሰነው የማቴሪያሉ አካል ወደ ቀድሞ ቦታው ሲመለስ ቀሪው አካሉ ደግሞ አይመለስም
.
Ductility = inelastic deformation ን የመቋቋም ብቃት
.
Quation. ✔️Toughness ምንድነው?
Ans. 👉Toughness = ክራክን የመቋቋም አቅም
.
Quation. ✔️Maximum እና Minimum Bending Moment ?
Ans. 👉Maximum Bending Moment = Shear Force Diagram(SFD) ከፖዘቲቭ ወደ ኔጌቲቭ የሚቀየርበት ነጥብ ላይ ነው Moment Maximum የሚሆነው
.
Minimum Bending Moment = SFD ከኔጌቲቭ ወደ ፖዘቲቭ የሚቀየርበት ነጥብ ላይ ይገኛል፡፡
Qution.✔️አንድ ህንፃ እኛ ዲዛይን ካደረግንበት ባነሰና በጣም ትንሽዬ በሆነ ሎድ ሊፈርስ ይችላል ? እንዴት??
.
Ans.👉ህንጻው መሸከም ከሚችለው ባነሰ በትንሽዬ ሎድ ሊፈርስ የሚችለው በሁለት ምክንያቶች ነው - በ Fatigue ና Creep
.
Fatigue = ሎዶቹ ትንንሽዬ ቢሆኑም እንኳን በሎድ ድግግሞሽ የተነሳ የህንጻው ጥንካሬ ሲደክም የሚፈጠር ነው፡፡ ይህ ሁኔታ በአብዛኛው የሚከሰተው ድልድዮች ላይ ነው - የመኪና ድግግሞሽ፡፡
.
Creep = አንድ ሎድ አንድ ቦታ ላይ ለብዙ ጊዜ በመቀመጡ ሳቢያ Strain ሲጨምር የሚፈጠር ነው፡፡
🙏🙏🙏Have a nice day for all engineer’s🙏🙏🙏
Ans. 👉Roller Compacted Concrete (RCC) ከኖርማሉ ኮንክሪት የሚለየው በ Mix ratio ነው፡፡ ይኸውም RCC ላይ የምንጠቀመው የውሀ መጠን በጣም አነስተኛ ነው፡፡ ኮንክሪቱ Compact የሚደረገው በሩሎ ወይም በ Roller Compactor ነው፡፡ በሀገራችንም ታላቁ የህዳሴ ግድብ (GRD) እና ግልገል ጊቤ 3 በዚህ ነው የተገነቡት፡፡ RCC ከኖርማሉ ኮንክሪት በተሻለ እድሜና ጥንካሬ አለው።
.
Quation. ✔️Bending moment ቢም ላይ ትልቅ ተፅዕኖ የሚኖረው በምን Axis ላይ ነው?
Ans. 👉A- Z axis ላይ
.
Quation. ✔️elastic እና inelastic ማቴሪያሎች ልዩነታቸው ምንድነው? ductility ምንድነው?
Ans. 👉Elastic material = load remove ሲደረግ ማቴሪያሉ ወደ ቀድሞ ቦታው የሚመለስ ከሆነ
.
Plastic / Inelastic Material = load remove ሲደረግ የተወሰነው የማቴሪያሉ አካል ወደ ቀድሞ ቦታው ሲመለስ ቀሪው አካሉ ደግሞ አይመለስም
.
Ductility = inelastic deformation ን የመቋቋም ብቃት
.
Quation. ✔️Toughness ምንድነው?
Ans. 👉Toughness = ክራክን የመቋቋም አቅም
.
Quation. ✔️Maximum እና Minimum Bending Moment ?
Ans. 👉Maximum Bending Moment = Shear Force Diagram(SFD) ከፖዘቲቭ ወደ ኔጌቲቭ የሚቀየርበት ነጥብ ላይ ነው Moment Maximum የሚሆነው
.
Minimum Bending Moment = SFD ከኔጌቲቭ ወደ ፖዘቲቭ የሚቀየርበት ነጥብ ላይ ይገኛል፡፡
Qution.✔️አንድ ህንፃ እኛ ዲዛይን ካደረግንበት ባነሰና በጣም ትንሽዬ በሆነ ሎድ ሊፈርስ ይችላል ? እንዴት??
.
Ans.👉ህንጻው መሸከም ከሚችለው ባነሰ በትንሽዬ ሎድ ሊፈርስ የሚችለው በሁለት ምክንያቶች ነው - በ Fatigue ና Creep
.
Fatigue = ሎዶቹ ትንንሽዬ ቢሆኑም እንኳን በሎድ ድግግሞሽ የተነሳ የህንጻው ጥንካሬ ሲደክም የሚፈጠር ነው፡፡ ይህ ሁኔታ በአብዛኛው የሚከሰተው ድልድዮች ላይ ነው - የመኪና ድግግሞሽ፡፡
.
Creep = አንድ ሎድ አንድ ቦታ ላይ ለብዙ ጊዜ በመቀመጡ ሳቢያ Strain ሲጨምር የሚፈጠር ነው፡፡
🙏🙏🙏Have a nice day for all engineer’s🙏🙏🙏
What is the name of this machine ?
A. Damper
B. Digger
C. Tele-handler
D. Back hoe loader
@engineer03
@engineersWorks
A. Damper
B. Digger
C. Tele-handler
D. Back hoe loader
@engineer03
@engineersWorks
✍️Difference between Theodolite and Total
station?
👉Theodolite and Total Station, as only
civil engineers or students would know, are land surveying instruments used to deduce
information about the plot under consideration for construction (buildings, bridges, roads, highways, dams, etc.)
👉A theodolite is basically a telescope
with both a vertical and horizontal axis. The angle of each axis can be measured with fairly accurate precision as long as the operator knows how to use the theodolite and knows basic trigonometry.
👉A theodolite needs two people to measure and align the angles.
A Theodolite specialises in angle measurements ( horizontal and vertical ) to the precision of degree ( new ones can precisely measure angles in seconds, 1/3600th of a degree ). Usually, it consists of a telescope mounted on two rotating disks or dials ( marked with degrees from 0 to 360 ).
👉The telescope can be rotated horizontally as well as vertical.
👇🏼👇🏼👇🏼
https://telegram.me/engineer03
station?
👉Theodolite and Total Station, as only
civil engineers or students would know, are land surveying instruments used to deduce
information about the plot under consideration for construction (buildings, bridges, roads, highways, dams, etc.)
👉A theodolite is basically a telescope
with both a vertical and horizontal axis. The angle of each axis can be measured with fairly accurate precision as long as the operator knows how to use the theodolite and knows basic trigonometry.
👉A theodolite needs two people to measure and align the angles.
A Theodolite specialises in angle measurements ( horizontal and vertical ) to the precision of degree ( new ones can precisely measure angles in seconds, 1/3600th of a degree ). Usually, it consists of a telescope mounted on two rotating disks or dials ( marked with degrees from 0 to 360 ).
👉The telescope can be rotated horizontally as well as vertical.
👇🏼👇🏼👇🏼
https://telegram.me/engineer03
👉Construction materials Price in Addis Ababa:
⏱September - December 2019:
👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼
⏱September - December 2019:
👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼