this study proposes a new external-shearing and internal-framing structure, and introduces the merits and application scenarios of this new structure. With a one-staircase six-house pagoda-style residential building as the study case, we tested mechanical and seismic indicators of the proposed new structure, including the floor rigidity, the shear bearing capacity, the shear-weight ratio, the floor displacement ratio and the floor displacement angle, under different degrees of seismic fortification intensity. The test result shows that the new external-shearing and nternal-framing structure has good mechanical performance when applied to pagoda-style residential buildings, the structural control indicators meet the standards and the structure can be widely used in buildings below 33 floors with a degree of seismic fortification intensity ranging from 6 to 7.

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Combining the two-site cluster approximation with the discretized path-integral representation (DPIR) and Suzuki-Trotter formalism, the critical properties of anisotropic Heisenberg ferromagnet with a crystal field are studied. We find that the tricritical point can appear in the case of negative crystal field. And the exchange anisotropy not only reduces the critical temperature and tricritical point, but also makes re-entrant phenomena instead of the existence of the tricritical point when the exchange anisotropic parameter is larger than a critical value.