外文翻譯——預應力混凝土建筑-建筑結構(已修改)
2025-06-01 05:26 本頁面
【正文】 外文資料： Prestressed Concrete Buildings Prestressed concrete has been widely and successfully applied to building construction of all types. Both precast pretensioned members and casttensioned structures are extensively employed, sometimes in petition with one another, most effectively in bination wit each other. Prestressed concrete offers great advantages for incorporation in a total building. It is perhaps the “integrative”aspects of these, that is, structure plus other functions, which have made possible the present growth in use of prestressed concrete buildings. These advantages include the following: Structural strength。 Structure rigidity。 Durability。 Mold ability, into desired forms and shapes。 Fire resistance。 Architectural treatment of surfaces。 Sound insulation。 Heat insulation。 Economy。 Availability, through use of local materials and labor to a high degree. Most of the above are also properties of conventionally reinforced concrete. Presrressing, however, makes the structural system more effective by enabling elimination of the technical of difficulty, ., cracks that spoil the architectural treatment. Prestressing greatly enhance the structure efficiency and economy permitting longer spans and thinner elements. Above all, it gives to the architectengineer a freedom for variation and an ability to control behavior under service conditions. Although prestressed concrete construction involves essentially the same consideration and practices as for all structures, a number of special points require emphasis or elaboration. The construction engineer is involved in design only to a limited extent. First, he muse be able to furnish advice to the architect and engineer on what can he done. Because of his specialized knowledge of techniques relating to prestressed concrete construction, he supplies a very needed service to the architectenginee
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