国内外已有试验研究表明，有粘结预应力FRP筋混凝土梁的破坏模式包括界限破坏、受压破坏与受拉破坏三种。
The failure modes of concrete beams prestressed with bonded FRP tendons can be classified into three types: the balanced failure, compression-controlled failure and tension-controlled failure.
根据这种方法推导出简便的无粘结预应力筋极限应力计算公式。
Based on the method, a simple formula calculating, the ultimate strength of unbonded prestress tendons was deduced.
通过低周往复水平荷载试验，对无粘结预应力板墙结构的工作特性，以及无粘结预应力筋在水平荷载下的变化规律进行了分析。
Rased on the experimental researches, the characteristic behavior of slab and wall structure with unbounded prestressing in the slab under low frequency cyclic loading have been studied.
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