In this article, the mechanical behaviors of four kinds of specimens (i.e. aramid fiber–reinforced polymer sheets, steel-epoxy adhesive joints, concrete cubes, and aramid fiber–reinforced polymer-to-concrete joints) were evaluated, respectively, after the specimens were immersed in 35 g/L NaCl solution for up to 360 days. Test results show that (a) except for the tensile strength of the aramid fiber–reinforced polymer sheet related to an immersion time of 45 days being 5.0% higher than that of the control sheet, the change in the sheet’s tensile strength with the immersion time is not obvious, and the tensile strength of the sheet related to an immersion time of 360 days is almost the same as that of the control sheet; (b) the effect of the salt solution on the modulus of elasticity of the aramid fiber–reinforced polymer sheet is more significant than that on the tensile strength of the sheet, and the elastic modulus of the sheet related to an immersion time of 360 days is 11.1% lower than that of the control sheet; (c) the shear strength of the steel-epoxy adhesive joint experiences severe degradation after being immersed in the salt solution, but the compressive strength of the aged concrete cube is generally larger than that of the control cube; and (d) the maximum local shear stress in the aramid fiber–reinforced polymer-to-concrete joint generally shows a fluctuating increase with the increase in the immersion time, meanwhile the fracture energy of the joint generally increases with the increase in the immersion time, but the failure pattern of the joint with shorter immersion time is different from that with longer immersion time.
To investigate the fire behaviours of earthquake-damaged concrete columns, eight reinforced concrete specimens were subjected to cyclic loadings at room temperature. The pre-damaged specimens and one control specimen without pre-damage were then tested in an ISO 834 fire. The experimental parameters of the columns included the intended drift ratio, axial load ratio, volumetric transverse reinforcement ratio and shear span ratio. The test results revealed the following. Compared with the drift ratio, the axial load ratio had a more significantly adverse effect on spalling of the column's concrete cover during the cyclic loading test. When the axial load ratio was 0·5, the influence of drift ratio in the range 0 to 1/65 on the fire endurance of the pre-damaged columns was limited, but fire endurance dropped dramatically for a drift ratio of 1/40. When the axial load ratio was less than 0·25, the fire endurance of the pre-damaged columns was still satisfactory even for an extremely large drift ratio (e.g. 1/26). The fire endurance of the pre-damaged columns increased to some extent with a reduction in shear span ratio.
With the development of economic globalization and the implementation of "One Belt, One Road", Sino-foreign cooperative education has developed rapidly. However, the relevant work of Sino-foreign cooperative education cannot keep up with the development of its scale, which leads to the low quality of running schools and becomes a bottleneck for the development of Sino-foreign cooperative education. The design of courses is the difficulty of Sino-foreign cooperation in running schools, and it is also the core of the quality of running schools. Taking the opportunity to participate in the special training of vocational education mode in TAFE NSW College in Australia, the authors studied the characteristics of the vocational qualification certificate and courses of TAFE NSW College, and proposed some suggestions for the course design of Sino-foreign cooperative education.
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