مدیریت ساخت و مدیریت پروژه
Hossein SamadYar
Abstract
Conventional concretes, which are designed, mixed, transported and processed by traditional methods, cannot be used to achieve the desired specifications for special applications or to achieve specific requirements. Strength alone cannot answer all the properties related to concrete, especially its durability, ...
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Conventional concretes, which are designed, mixed, transported and processed by traditional methods, cannot be used to achieve the desired specifications for special applications or to achieve specific requirements. Strength alone cannot answer all the properties related to concrete, especially its durability, and it is necessary to consider its reliability and durability in addition to the issue of resistance and bearing loads during the service life of concrete for different areas. In recent years, on the reinforcement used in reinforced concrete structures, developments in concrete have been placed at the top of the research programs of some countries of the world. The opinion of most experts and practitioners of concrete works has been drawn to this issue that strength alone cannot answer all the properties of concrete, especially its durability, and it is necessary to design concrete for different areas in addition to the issue of resistance and bearing loads during the service life. Its reliability and durability should also be considered. In recent years, there has been a huge change in concrete technology and the emergence of new concretes.
مدیریت ساخت و مدیریت پروژه
Hossein SamadYar
Abstract
One of the effective methods in improving the seismic behavior of structures is the use of light steel structures (LSF) systems. The (LSF) system, which is made of cold-rolled steel sections (CFS), has been widely used in the industrial production of commercial and residential buildings for about 20 ...
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One of the effective methods in improving the seismic behavior of structures is the use of light steel structures (LSF) systems. The (LSF) system, which is made of cold-rolled steel sections (CFS), has been widely used in the industrial production of commercial and residential buildings for about 20 years, and as a suitable alternative to traditional construction methods. It has found a special place in the construction industry of advanced countries. These types of systems receive a small amount of lateral force during severe earthquakes, and due to two special properties, i.e. prefabricated structural members and suitable thermal insulation, these systems are widely used in The advanced countries of the world are used to build residential houses. Wooden buildings show good resistance against earthquakes. In a wooden structure, low to moderate vulnerability to earthquakes is usually observed. One of the reasons for the good performance of these buildings against earthquakes is their light weight compared to other types. Also, the presence of many non-structural components such as load-bearing walls increases the amount of energy wasted by the building against earthquakes. In addition, the presence of many joints increases the malleability of the building.
