مقارنة تأثير أنواع مختلفة من الملدنات الفائقة على خواص الخرسانة الاعتيادية
#59863
20 كانون الأول 20221 أيامجامعة المثنىكلية الهندسة
نبذة مختصرة عن الحلقة النقاشية
يتم في هذه الحلقة النقاشية استعراض ومقارنة تأثير أنواع مختلفة من الملدنات الفائقة على الخواص الأساسية للخرسانة الاعتيادية كالهطول ومقاومة الانضغاط بأعمار مختلفة. المقارنة تتم بالاعتماد على نتائج البحوث السابقة في هذا المجال للوصول إلى رؤيا أوضح عن سلوك الخرسانة تحت تأثير هذه المضافات.
Behaviour and design of steel and composite beams with large web openings
#59857
14 تشرين الثاني 20221 أيامجامعة المثنىكلية الهندسة
نبذة مختصرة عن الحلقة النقاشية
"This presentation presents an introduction to the behaviour and design of such beams under static loading. Codes of design are reviewed in deep to show the differences.
A summary will be presented to show the best code in terms of cost and strength"
Behaviour of Concrete Beams Reinforced with Hybrid FRP/Steel Bars
#59855
29 تشرين الثاني 20221 أيامجامعة المثنىكلية الهندسة
نبذة مختصرة عن الحلقة النقاشية
Steel reinforced concrete presented excellent structural and economic performance. Steel reinforcing bars are ductile and have high elastic modulus, however, the performance of steel reinforced concrete structures is seriously affected by the exposure to harsh environmental conditions, causing significant corrosion in steel reinforcement over time. This phenomenon can cause serious consequences on the structures such as cracking, spalling and losing the bond between steel bars and concrete, which eventually may lead to losing the serviceability and requiring fundamental repair works. The costly maintenance of steel reinforced concrete structures highlighted the need to find new construction materials that can offer better resistance system against the deterioration of reinforced concrete structures. On the other hand, the use of fibre reinforced concrete has recently received much worldwide interest owing to its superior material characteristics such as a superior tensile strength to weight ratio and its high resistance to corrosion. However, FRP has been criticized for its relatively brittle and low elastic modulus. Therefore, the use of hybrid reinforcement(steel/FRP) in structures seems a promising solution for enhancing the efficiency of these materials and producing a strong construction system.
In passive solar building design, windows, walls, and floors are made to collect, store, reflect, and distribute solar energy, in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the use of mechanical and electrical devices.
Sustainability Assessment of Construction Materials: Available Criteria and Indicators
#59852
8 تشرين الثاني 20221 أيامجامعة المثنىكلية الهندسة
نبذة مختصرة عن الحلقة النقاشية
The construction industry is criticized for causing striking impacts on the environment; Therefore, the industry seeks to adopt sustainable practices to reduce these impacts. One such practice is to introduce the concept of sustainable materials to industry, however, there is no single agreed upon definition of what "sustainable building materials" are, and they are generally considered environmentally friendly materials.