| Continuous Basalt Fiber (CBF) is made by crude basalt ore. The fiber has these characteristics, such as high intensity, low density, low thermal conductivity, low moisture rate, nicer dielectric properties, chemical stability to corrosion medium and low price.In order to study the effect and action of Basalt Continuous Fiber Reinforced Polymer (BFRP) strengthening in the integral structure, the compatibility torional spandrel beams and eccentricity compression"一"shaped columns of the unbonded prestressed slab-column structure model with slab and special-shaped column which has destroyed are strengthened with BFRP, through the 16-points vertical static loads tests of the strengthened monolithic structure specimen, the bearing performance of the strengthened member is studied and analyzed. The results show: BFRP play a better role, the old torsional cracks of spandrel beams are observably restricted, and the new cracks are enormously delayed the appearance time. The rigidity of the strengthened members is better recovered, compared with the former result. Because of good compatibility of BFRP and the member, BFRP has no desquamation breakage and shares in the force of reinforcing steel bar, strengthening member still have great bearing capacity. The effect of narrow space of BFRP hoop is better, the increasing layers of the BFRP can result in reduce of strength efficiency.In addition, on the basis of experiment study, in this thesis the torsional spandrel beam is analyzed with spatial truss model theory of inclined compressioneld considering concrete softening, the torsion and torsion angle per load step is calculated with the program compiled by turbo C, compared with the actual result, the result obtained with the theory can better inosculate to the actual result.At last,the disadvantages of this thesis are pointed out, and some recommendations for future research are set forth.
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