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1 预应力混凝土与预应力技术 预应力混凝土是预加应力混凝土的简称,从荷载概念出发可定义为“预应力混凝土是根据需要人为地引入某一反向荷载,用以部分或全部抵消使用荷载的一种加筋混凝土”。举个通俗例子:对要求承受1000kN轴向拉力的混凝土拉杆,如预先施加1000kN轴心压力,则在使用荷载下拉力与压力抵消,
1 Prestressed concrete and prestressed technology Prestressed concrete is an abbreviation of prestressed concrete. Starting from the concept of load, it can be defined as “Prestressed concrete artificially introduces a reverse load as required to partially or completely offset the use load. A reinforced concrete." Take a common example: For concrete rods that are required to withstand an axial tension of 1000 kN, if a 1000 kN axial pressure is applied in advance, then the load is used to pull down the force and the pressure is offset.