:
*Civil Engineering Learning Videos*
*Water Proofing of Concrete*
https://www.facebook.com/civilengineeringvideo/videos/159653901297627/
*Types of Cement*
https://www.facebook.com/civilengineeringvideo/videos/159646631298354/
*Transportation of concrete*
https://www.facebook.com/civilengineeringvideo/videos/159639971299020/
*THE BEST PRACTICES TO SET UP FORMWORK*
https://www.facebook.com/civilengineeringvideo/videos/159627467966937/
*Test for comprehensive strength of concrete-Cube Casting*
https://www.facebook.com/civilengineeringvideo/videos/159622824634068/
*Setting Out*
https://www.facebook.com/civilengineeringvideo/videos/159616374634713/
*Storage of Cement*
https://www.facebook.com/civilengineeringvideo/videos/159619707967713/
*Selection of Steel For RCC Type & Quality*
https://www.facebook.com/civilengineeringvideo/videos/159613334635017/
*READY MIX CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159587304637620/
*Problems In Plastering*
https://www.facebook.com/civilengineeringvideo/videos/159583611304656/
*Prevention Of Plastic Shrinkage Cracks*
https://www.facebook.com/civilengineeringvideo/videos/159581661304851/
*PLACING OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159578707971813/
*Painting Tips*
https://www.facebook.com/civilengineeringvideo/videos/159575327972151/
*method of plastering*
https://www.facebook.com/civilengineeringvideo/videos/159563154640035/
*How to Choose Quality Bricks*
https://www.facebook.com/civilengineeringvideo/videos/159558857973798/
*HOW TO CHOOSE GOOD QUALITY COARSE AGGREGATES*
https://www.facebook.com/civilengineeringvideo/videos/159556727974011/
*HOW TO ASSESS THE QUALITY OF FINE AGGREGATES*
https://www.facebook.com/civilengineeringvideo/videos/159552017974482/
*Flooring*
https://www.facebook.com/civilengineeringvideo/videos/159548834641467/
*FINISHING OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159444041318613/
*Fixing Door & Window Frames*
https://www.facebook.com/civilengineeringvideo/videos/159453594650991/
*FIELD TEST FOR COHESION OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159439217985762/
*EXCAVATION IN GRAVELY SOILS*
https://www.facebook.com/civilengineeringvideo/videos/159437571319260/
*EFFECT OF WATER ON CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159435234652827/
*Damp Proof Course (DPC)*
https://www.facebook.com/civilengineeringvideo/videos/159433187986365/
*Curing*
https://www.facebook.com/civilengineeringvideo/videos/159404707989213/
*Cover to Reinforcement*
https://www.facebook.com/civilengineeringvideo/videos/159392407990443/
*Construction Safety Tips*
https://www.facebook.com/civilengineeringvideo/videos/159387911324226/
*Concealed piping*
https://www.facebook.com/civilengineeringvideo/videos/159379287991755/
*COMPACTION OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159354527994231/
*COLUMN SHUTTERING*
https://www.facebook.com/civilengineeringvideo/videos/159350447994639/
*Chemical Admixtures*
https://www.facebook.com/civilengineeringvideo/videos/159348164661534/
*Backfilling & Plinth Filling*
https://www.facebook.com/civilengineeringvideo/videos/159339314662419/
*Anti Termite Treatment*
https://www.facebook.com/civilengineeringvideo/videos/159334511329566/
*Civil Engineering Learning Videos*
*Water Proofing of Concrete*
https://www.facebook.com/civilengineeringvideo/videos/159653901297627/
*Types of Cement*
https://www.facebook.com/civilengineeringvideo/videos/159646631298354/
*Transportation of concrete*
https://www.facebook.com/civilengineeringvideo/videos/159639971299020/
*THE BEST PRACTICES TO SET UP FORMWORK*
https://www.facebook.com/civilengineeringvideo/videos/159627467966937/
*Test for comprehensive strength of concrete-Cube Casting*
https://www.facebook.com/civilengineeringvideo/videos/159622824634068/
*Setting Out*
https://www.facebook.com/civilengineeringvideo/videos/159616374634713/
*Storage of Cement*
https://www.facebook.com/civilengineeringvideo/videos/159619707967713/
*Selection of Steel For RCC Type & Quality*
https://www.facebook.com/civilengineeringvideo/videos/159613334635017/
*READY MIX CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159587304637620/
*Problems In Plastering*
https://www.facebook.com/civilengineeringvideo/videos/159583611304656/
*Prevention Of Plastic Shrinkage Cracks*
https://www.facebook.com/civilengineeringvideo/videos/159581661304851/
*PLACING OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159578707971813/
*Painting Tips*
https://www.facebook.com/civilengineeringvideo/videos/159575327972151/
*method of plastering*
https://www.facebook.com/civilengineeringvideo/videos/159563154640035/
*How to Choose Quality Bricks*
https://www.facebook.com/civilengineeringvideo/videos/159558857973798/
*HOW TO CHOOSE GOOD QUALITY COARSE AGGREGATES*
https://www.facebook.com/civilengineeringvideo/videos/159556727974011/
*HOW TO ASSESS THE QUALITY OF FINE AGGREGATES*
https://www.facebook.com/civilengineeringvideo/videos/159552017974482/
*Flooring*
https://www.facebook.com/civilengineeringvideo/videos/159548834641467/
*FINISHING OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159444041318613/
*Fixing Door & Window Frames*
https://www.facebook.com/civilengineeringvideo/videos/159453594650991/
*FIELD TEST FOR COHESION OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159439217985762/
*EXCAVATION IN GRAVELY SOILS*
https://www.facebook.com/civilengineeringvideo/videos/159437571319260/
*EFFECT OF WATER ON CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159435234652827/
*Damp Proof Course (DPC)*
https://www.facebook.com/civilengineeringvideo/videos/159433187986365/
*Curing*
https://www.facebook.com/civilengineeringvideo/videos/159404707989213/
*Cover to Reinforcement*
https://www.facebook.com/civilengineeringvideo/videos/159392407990443/
*Construction Safety Tips*
https://www.facebook.com/civilengineeringvideo/videos/159387911324226/
*Concealed piping*
https://www.facebook.com/civilengineeringvideo/videos/159379287991755/
*COMPACTION OF CONCRETE*
https://www.facebook.com/civilengineeringvideo/videos/159354527994231/
*COLUMN SHUTTERING*
https://www.facebook.com/civilengineeringvideo/videos/159350447994639/
*Chemical Admixtures*
https://www.facebook.com/civilengineeringvideo/videos/159348164661534/
*Backfilling & Plinth Filling*
https://www.facebook.com/civilengineeringvideo/videos/159339314662419/
*Anti Termite Treatment*
https://www.facebook.com/civilengineeringvideo/videos/159334511329566/
Facebook
Civil Engineering Video
Water Proofing of Concrete
:
Prakash G:
*8 CAUSES OF* *CRACKS IN* *CONCRETE YOU*
*SHOULD KNOW*
Cracking is one of the most common problems in concrete and it should be avoided seriously.
*Different causes of cracks in concrete are described below:*
*1. SHRINKAGE:*
Shrinkage is one of the major causes of cracking in hardened concrete. In drying shrinkage, the volume of concrete is gradually
decreased and if the component is restrained against free movement, tensile stresses are developed which causes cracks.
*2. TEMPERATURE CHANGES:*
The temperature variation in concrete results in the differential volume change. When the tensile strain capacity of concrete exceeds
due to the differential volume change, it will crack.
*3. CHEMICAL REACTION:*
Due to the alkaline nature of cement, it reacts with the carbon dioxide (CO2) present in the
atmosphere resulting in an appreciable increase in the volume of the materials which finally leads to cracking.
*4. POOR CONSTRUCTION PRACTICES:*
Poor construction practices such as adding excessive water to the mix, lack of curing, poor compaction, using low-grade materials, unreasonable placements of construction joints etc. are also responsible for cracking in
concrete.
*5. ERRORS IN DESIGN & DETAILING:*
Errors in design and detailing such as an inadequate amount of reinforcement, improper
design of foundation, precast members and slabs, improper selection of materials, lack of
sufficient contraction joints etc may result in excessive cracking.
*6. CONSTRUCTION OVERLOADS & EARLY FORMWORK REMOVAL:*
The load induced in the structure during construction can also lead to cracking especially at the younger stage when the formwork is removed earlier.
*7. ELASTIC DEFORMATION AND CREEP:*
The different components of the building such as wall, column, beam. slab etc undergo elastic deformation when loaded. The
deformation of concrete depends on the type of building materials used in the construction such as bricks, cement concrete blocks etc.
This unusual deformation of concrete results in cracking.
*8. CORROSION OF CONCRETE:*
The corrosion of steel develops a huge amount of iron oxides and hydroxide that have a much greater volume than the volume of metallic iron. Hence the volume is increases and leads to cracks.
https://t.me/construction2018
Prakash G:
*8 CAUSES OF* *CRACKS IN* *CONCRETE YOU*
*SHOULD KNOW*
Cracking is one of the most common problems in concrete and it should be avoided seriously.
*Different causes of cracks in concrete are described below:*
*1. SHRINKAGE:*
Shrinkage is one of the major causes of cracking in hardened concrete. In drying shrinkage, the volume of concrete is gradually
decreased and if the component is restrained against free movement, tensile stresses are developed which causes cracks.
*2. TEMPERATURE CHANGES:*
The temperature variation in concrete results in the differential volume change. When the tensile strain capacity of concrete exceeds
due to the differential volume change, it will crack.
*3. CHEMICAL REACTION:*
Due to the alkaline nature of cement, it reacts with the carbon dioxide (CO2) present in the
atmosphere resulting in an appreciable increase in the volume of the materials which finally leads to cracking.
*4. POOR CONSTRUCTION PRACTICES:*
Poor construction practices such as adding excessive water to the mix, lack of curing, poor compaction, using low-grade materials, unreasonable placements of construction joints etc. are also responsible for cracking in
concrete.
*5. ERRORS IN DESIGN & DETAILING:*
Errors in design and detailing such as an inadequate amount of reinforcement, improper
design of foundation, precast members and slabs, improper selection of materials, lack of
sufficient contraction joints etc may result in excessive cracking.
*6. CONSTRUCTION OVERLOADS & EARLY FORMWORK REMOVAL:*
The load induced in the structure during construction can also lead to cracking especially at the younger stage when the formwork is removed earlier.
*7. ELASTIC DEFORMATION AND CREEP:*
The different components of the building such as wall, column, beam. slab etc undergo elastic deformation when loaded. The
deformation of concrete depends on the type of building materials used in the construction such as bricks, cement concrete blocks etc.
This unusual deformation of concrete results in cracking.
*8. CORROSION OF CONCRETE:*
The corrosion of steel develops a huge amount of iron oxides and hydroxide that have a much greater volume than the volume of metallic iron. Hence the volume is increases and leads to cracks.
https://t.me/construction2018
Telegram
♻♻ميادين الاعمار♻♻
منصة عربية تسعى لتجويد وتعزيز ومشاركة كل ماهو مفيد وجديد في مجالات الهندسة المدنية والمعمارية والارتقاء وتطوير مهاراتك في مجالات العمل المختلفة وتساهمُ في النهوض بالحس الهندسي للمهندس
:
Some Civil Engineering Field Questions Answers
What is the FM(Fineness Modulus)?
Answer: FM( Fineness Modulus is an empirical figure obtained by summing up the cumulative percentage of materials retained on each of the sieve excluding 0.075 mm sieve and dividing the sum by 100.
What is the FM value for Sand and Stone?
Answer: For sand the FM value varies from 2.5-4.0 and for stone FM value varies between 6.5 8.0.
What is LAA?
Answer: LAA means Los Angeles Abrasion Test which represents the strength of stone to withstand with the abrasion that occurs during the life cycle of the stone.
If the W/C cement ration is less what will be the strength of concrete?
Answer: If W/C ratio decreases concrete strength will rise up.
What is Compaction?
Answer: Compaction is a process by which the volume of the soil decreases by using any mechanical devices and by pulling out the available air in the soil.
What is Consolidation?
Consolidation is a natural process by which the soil volume reduces and it becomes in compacted form by pulling out the water and decreasing the pore spaces between the particles
Say name of the compaction test methods?
Answer : 1. Standard Proctor Test 2. Modified Proctor Test
How can you measure workability of the concrete on field?
Answer: Workability can be measured by slump test.
What is the normal slump value for concrete?
Answer: Normally slump vale varies between 50 mm-100 mm for normal concrete.
What is the dimensions of Slump Mold?
Answer: Height=12 inch, Top width=4 inch and bottom width= 8 inch
What are the types of slump?
Answer: Slump in concrete are of three types:
True slump
Shear slump
Collapse slump
What is Dewatering?
Answer: Dewatering means removing the water from any specified construction place so that the construction work can run smoothly.
What is Hydration?
Answer: Hydration is the reaction between cement and water.
What test is done to measure the required compaction on field?
Answer: Compaction test by sand cone replacement method.
Why do we use steel in concrete? why not other metals?
We use steel in concrete as the co-efficient of thermal expansion of concrete and steel is almost same and steel has very good strength to withstand with the tensile loads.
How do designers design the compressed member when there is no use of steel?
Answer: Then it was designed to produce very small to no tensile stress in the section so that the section will be very large.
What is Geo-textile?
Answer: Geo-textile is a permeable synthetic fabric that is produced from plyestar,ploy ethylene to separate the soil or to filter the materials, or to protect the banks from being eroded.
What types soil is sand?
Answer: Sand is cohesionless soil
https://t.me/construction2018
Some Civil Engineering Field Questions Answers
What is the FM(Fineness Modulus)?
Answer: FM( Fineness Modulus is an empirical figure obtained by summing up the cumulative percentage of materials retained on each of the sieve excluding 0.075 mm sieve and dividing the sum by 100.
What is the FM value for Sand and Stone?
Answer: For sand the FM value varies from 2.5-4.0 and for stone FM value varies between 6.5 8.0.
What is LAA?
Answer: LAA means Los Angeles Abrasion Test which represents the strength of stone to withstand with the abrasion that occurs during the life cycle of the stone.
If the W/C cement ration is less what will be the strength of concrete?
Answer: If W/C ratio decreases concrete strength will rise up.
What is Compaction?
Answer: Compaction is a process by which the volume of the soil decreases by using any mechanical devices and by pulling out the available air in the soil.
What is Consolidation?
Consolidation is a natural process by which the soil volume reduces and it becomes in compacted form by pulling out the water and decreasing the pore spaces between the particles
Say name of the compaction test methods?
Answer : 1. Standard Proctor Test 2. Modified Proctor Test
How can you measure workability of the concrete on field?
Answer: Workability can be measured by slump test.
What is the normal slump value for concrete?
Answer: Normally slump vale varies between 50 mm-100 mm for normal concrete.
What is the dimensions of Slump Mold?
Answer: Height=12 inch, Top width=4 inch and bottom width= 8 inch
What are the types of slump?
Answer: Slump in concrete are of three types:
True slump
Shear slump
Collapse slump
What is Dewatering?
Answer: Dewatering means removing the water from any specified construction place so that the construction work can run smoothly.
What is Hydration?
Answer: Hydration is the reaction between cement and water.
What test is done to measure the required compaction on field?
Answer: Compaction test by sand cone replacement method.
Why do we use steel in concrete? why not other metals?
We use steel in concrete as the co-efficient of thermal expansion of concrete and steel is almost same and steel has very good strength to withstand with the tensile loads.
How do designers design the compressed member when there is no use of steel?
Answer: Then it was designed to produce very small to no tensile stress in the section so that the section will be very large.
What is Geo-textile?
Answer: Geo-textile is a permeable synthetic fabric that is produced from plyestar,ploy ethylene to separate the soil or to filter the materials, or to protect the banks from being eroded.
What types soil is sand?
Answer: Sand is cohesionless soil
https://t.me/construction2018
Telegram
♻♻ميادين الاعمار♻♻
منصة عربية تسعى لتجويد وتعزيز ومشاركة كل ماهو مفيد وجديد في مجالات الهندسة المدنية والمعمارية والارتقاء وتطوير مهاراتك في مجالات العمل المختلفة وتساهمُ في النهوض بالحس الهندسي للمهندس
#نسب خلط الخرسانة الحجمية
https://t.me/construction2018
خرسانه العادية
يحتاج 0.8 م3 زلط + 0.4 م3 رمل + 5 شكائر اسمنت + 125 لتر ماء.
♦️الخرسانه المسلحة
- 1م3 خرسانه مسلحه يحتاج 0.8 م3 زلط + 0.4 م3 رمل + 7 شكائر اسمنت + 175 لتر ماء.
- نسب الخلط فى الموقع للخرسانه المسلحه ( 1/7 م3 ) 4 غلق زلط + 2 غلق رمل + شيكارة اسمنت + 25 لتر ماءاو 2 براويطه زلط + 1 براويطه رمل + شيكارة اسمنت + 25 لتر ماءاو مغرفة اللودر الصغير زلط + 0.5 مغرفه رمل + شيكارة اسمنت + 25 لتر ماء .
♦️ملاحظات :
▪️يراعى تركيب كانه بعيون لاشاير العمود فى مستوى حديد الاساسات العلوى و فى اعلى الاشاير للحفاظ على المسافه بين الاسياخ
يراعى تركيب كانه بعيون اعلى اشاير عمود الدور للحفاظ على المسافه بين الاسياخ.
▪️يراعى تجهيز سكه للبراويطة اثناء الصب للحفاظ على حديد التسليح.
▪️يراعى اخذ 6 مكعبات لكل 100 م ³
▪️يراعى اخذ 6 مكعبات لكل يوم صب اذا قلت الكمبه عن 100 م3 خرسانة يراعى تركيب كليبسات و برندات لاشاير الحوائط قبل الصب.
▪️يراعى رش النجاره بالماء قبل الصب.
▪️يراعى استلام النجاره و الحداده قبل الصب و التأكد من تقوية النجارة.
▪️زمن الشك الابتدائى للخرسانه 45 دقيقه من الشك النهائى للخرسانه 10 ساعات
مدة فك الشدات ( من 7 – 28 يوم .
▪️القواعد و اللبشه و رقاب الاعمده الفك فى اليوم التالى للصب .
▪️الاسقف و الكمرات المده ( ضعف البحر الاصغر + يومان )ا.
▪️الاعمده و الحوائط الفك فى اليوم التالى للصب .
▪️الكابولى المده ( 4 أضعاف البروز + يومان ).
▪اقل مسافه بين الاسياخ لا تعيق الصب قطر اكبر سيخ او سم 2.اوالمقاس الاعتبارى للركام الاكبر .
https://t.me/construction2018
خرسانه العادية
يحتاج 0.8 م3 زلط + 0.4 م3 رمل + 5 شكائر اسمنت + 125 لتر ماء.
♦️الخرسانه المسلحة
- 1م3 خرسانه مسلحه يحتاج 0.8 م3 زلط + 0.4 م3 رمل + 7 شكائر اسمنت + 175 لتر ماء.
- نسب الخلط فى الموقع للخرسانه المسلحه ( 1/7 م3 ) 4 غلق زلط + 2 غلق رمل + شيكارة اسمنت + 25 لتر ماءاو 2 براويطه زلط + 1 براويطه رمل + شيكارة اسمنت + 25 لتر ماءاو مغرفة اللودر الصغير زلط + 0.5 مغرفه رمل + شيكارة اسمنت + 25 لتر ماء .
♦️ملاحظات :
▪️يراعى تركيب كانه بعيون لاشاير العمود فى مستوى حديد الاساسات العلوى و فى اعلى الاشاير للحفاظ على المسافه بين الاسياخ
يراعى تركيب كانه بعيون اعلى اشاير عمود الدور للحفاظ على المسافه بين الاسياخ.
▪️يراعى تجهيز سكه للبراويطة اثناء الصب للحفاظ على حديد التسليح.
▪️يراعى اخذ 6 مكعبات لكل 100 م ³
▪️يراعى اخذ 6 مكعبات لكل يوم صب اذا قلت الكمبه عن 100 م3 خرسانة يراعى تركيب كليبسات و برندات لاشاير الحوائط قبل الصب.
▪️يراعى رش النجاره بالماء قبل الصب.
▪️يراعى استلام النجاره و الحداده قبل الصب و التأكد من تقوية النجارة.
▪️زمن الشك الابتدائى للخرسانه 45 دقيقه من الشك النهائى للخرسانه 10 ساعات
مدة فك الشدات ( من 7 – 28 يوم .
▪️القواعد و اللبشه و رقاب الاعمده الفك فى اليوم التالى للصب .
▪️الاسقف و الكمرات المده ( ضعف البحر الاصغر + يومان )ا.
▪️الاعمده و الحوائط الفك فى اليوم التالى للصب .
▪️الكابولى المده ( 4 أضعاف البروز + يومان ).
▪اقل مسافه بين الاسياخ لا تعيق الصب قطر اكبر سيخ او سم 2.اوالمقاس الاعتبارى للركام الاكبر .
Telegram
♻♻ميادين الاعمار♻♻
منصة عربية تسعى لتجويد وتعزيز ومشاركة كل ماهو مفيد وجديد في مجالات الهندسة المدنية والمعمارية والارتقاء وتطوير مهاراتك في مجالات العمل المختلفة وتساهمُ في النهوض بالحس الهندسي للمهندس
معجزة الصوت في القرآن
أراد الله. سبحانه وتعالى، أن يكون القرآن الكريم معجزة النبي ـ صلى الله عليه وسلم ـ ذو وجوه متعددة من الإعجاز فهو معجزة في أسلوبه وبلاغته وهو أيضاً معجزة سمعية وصوتية، وحياً وبلاغاً، وتلاوة وترتيلاً..
والسمع هو سيد وسائل الإدراك الإنساني والكلام لا يسمى كلاماً إلا إذا كان بصوت وعند قراءة كلمات مكتوبة فإنها في الحقيقة تستثير في نفسك أصواتها المنظومة والتي تدل على معانيها، أي أنها تجري على لسانك وقلبك ولو كنت صامتا.
وقد أثبت العلم الحديث أن الصوت صورة من صور الطاقة وينتقل على شكل موجات، وعند وصول الصوت إلى الأذن تبدأ إرهاصات الإدراك السمعي والتي تنتهي بالفهم والتخيل والرغبة والرهبة والحب والبغض وكافة المشاعر الإنسانية المرتبطة بالمؤثر الصوتي سواء كان له معنى في ذاته أو أثار في نفسك قصصاً وذكريات وتنشأ عن ذلك الفكرة والنية، والعزيمة والإرادة والفعل وذلك وفقاً لما يمكن أن يحمل الصوت المسموع من معاني ومفاهيم ونغم وهدير مما يكون له تأثيره على النفس والجسد ( Psychosomatic effects ) وقد أولي العلماء هذا كثير من الاهتمام والتفكير في معجزة القرآن الشفائية والتي أخبرنا بها المولى ـ عز وجل ـ في كتابه الكريم فقد ارتبط الشفاء بذات آيات القرآن الكريم في عدة مواضيع قال تعالى (
قد جاءتكم موعظة من ربكم وشفاء لما في الصدور
تلاوة لشيخ عبد المطلب بن عاشوراء سورة الكهف لقراءة ورش بن نافع من طريق الاصفهاني قراءة ربما اول مرة تسمعها مع القارئ عبد المطلب بن عاشوراء تقشعر لها الابدان
اصغط على الصورة واستمتع بسماع كلام الله الذي لا يأتيه الباطل من بين يديه ولا من خلفه تنزيل من حكيم حميد
https://youtu.be/M8LFRHK2uHY
أراد الله. سبحانه وتعالى، أن يكون القرآن الكريم معجزة النبي ـ صلى الله عليه وسلم ـ ذو وجوه متعددة من الإعجاز فهو معجزة في أسلوبه وبلاغته وهو أيضاً معجزة سمعية وصوتية، وحياً وبلاغاً، وتلاوة وترتيلاً..
والسمع هو سيد وسائل الإدراك الإنساني والكلام لا يسمى كلاماً إلا إذا كان بصوت وعند قراءة كلمات مكتوبة فإنها في الحقيقة تستثير في نفسك أصواتها المنظومة والتي تدل على معانيها، أي أنها تجري على لسانك وقلبك ولو كنت صامتا.
وقد أثبت العلم الحديث أن الصوت صورة من صور الطاقة وينتقل على شكل موجات، وعند وصول الصوت إلى الأذن تبدأ إرهاصات الإدراك السمعي والتي تنتهي بالفهم والتخيل والرغبة والرهبة والحب والبغض وكافة المشاعر الإنسانية المرتبطة بالمؤثر الصوتي سواء كان له معنى في ذاته أو أثار في نفسك قصصاً وذكريات وتنشأ عن ذلك الفكرة والنية، والعزيمة والإرادة والفعل وذلك وفقاً لما يمكن أن يحمل الصوت المسموع من معاني ومفاهيم ونغم وهدير مما يكون له تأثيره على النفس والجسد ( Psychosomatic effects ) وقد أولي العلماء هذا كثير من الاهتمام والتفكير في معجزة القرآن الشفائية والتي أخبرنا بها المولى ـ عز وجل ـ في كتابه الكريم فقد ارتبط الشفاء بذات آيات القرآن الكريم في عدة مواضيع قال تعالى (
قد جاءتكم موعظة من ربكم وشفاء لما في الصدور
تلاوة لشيخ عبد المطلب بن عاشوراء سورة الكهف لقراءة ورش بن نافع من طريق الاصفهاني قراءة ربما اول مرة تسمعها مع القارئ عبد المطلب بن عاشوراء تقشعر لها الابدان
اصغط على الصورة واستمتع بسماع كلام الله الذي لا يأتيه الباطل من بين يديه ولا من خلفه تنزيل من حكيم حميد
https://youtu.be/M8LFRHK2uHY
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♻♻ميادين إلاعمار♻♻:
CUTTING LENGTH FOR
RECTANGULAR STIRRUPS:-
Rectangular column or rectangular beam is the most commonly used shape of the column in any construction. In this shape of beam or column, a rectangular stirrup is usually adopted.
1. Considering the below Rectangular column size
230mm x 450mm for calculation purpose
2. Adopting Dia of Bar used for stirrups is 8mm
3. Deducting the concrete cover 20mm from all sides
x = 230 – 20-20 =190mm
y = 450-20-20 = 410mm
4. Total Length of the hooks:
From fig, There are two hooks which means
9d+9d = 18d
5. Total Length of Bends:
From above fig, There are 3 bends which are
bent at an angle of 90' and two bends are bent
at an angle of 135'
Total bend length
= 3 x 90' Bend length + 2 x
135' Bend length
= 3 x 2d + 2 x 3d = 12d = 12 x8 = 96mm
Total Cutting length of Rectangular Stirrup = Perimeter of Rectangle + Total Hook length – Total Bend Length
= 2 (x+y) +18d – 12d = 2(190 + 410) + 18 x 8 – 12 x 8 =1248mm = 1.248m
https://t.me/construction2018
CUTTING LENGTH FOR
RECTANGULAR STIRRUPS:-
Rectangular column or rectangular beam is the most commonly used shape of the column in any construction. In this shape of beam or column, a rectangular stirrup is usually adopted.
1. Considering the below Rectangular column size
230mm x 450mm for calculation purpose
2. Adopting Dia of Bar used for stirrups is 8mm
3. Deducting the concrete cover 20mm from all sides
x = 230 – 20-20 =190mm
y = 450-20-20 = 410mm
4. Total Length of the hooks:
From fig, There are two hooks which means
9d+9d = 18d
5. Total Length of Bends:
From above fig, There are 3 bends which are
bent at an angle of 90' and two bends are bent
at an angle of 135'
Total bend length
= 3 x 90' Bend length + 2 x
135' Bend length
= 3 x 2d + 2 x 3d = 12d = 12 x8 = 96mm
Total Cutting length of Rectangular Stirrup = Perimeter of Rectangle + Total Hook length – Total Bend Length
= 2 (x+y) +18d – 12d = 2(190 + 410) + 18 x 8 – 12 x 8 =1248mm = 1.248m
https://t.me/construction2018
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♻♻ميادين الاعمار♻♻
منصة عربية تسعى لتجويد وتعزيز ومشاركة كل ماهو مفيد وجديد في مجالات الهندسة المدنية والمعمارية والارتقاء وتطوير مهاراتك في مجالات العمل المختلفة وتساهمُ في النهوض بالحس الهندسي للمهندس