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Corrugated steel plate shear walls (CSPSWs) can be applied to high‐rise building structures to serve as lateral load‐bearing and energy‐dissipating members. Arranging stiffeners on corrugated steel plates shows substantial potential to further improve the seismic performance of ordinary CSPSWs. This study experimentally and numerically investigated the hysteretic behavior of unstiffened and stiffened CSPSWs. Cyclic quasi‐static tests were conducted on four, 1/2‐scale, two‐story, single‐bay specimens with different corrugation orientations, including two specimens with unstiffened corrugated steel plates and two specimens installed with stiffened corrugated steel plates equipped with two pairs of stiffeners. According to the hysteretic curves of different specimens, the effects of corrugation orientations and arrangement of stiffeners were revealed in terms of the skeleton curves, energy‐dissipating capacity, and stiffness degradation. Then, finite element (FE) models, which were applied to gain a deeper understanding of the experimental results, were established, and validated against the test results. This study demonstrated that the arrangement of stiffeners was effective in improving the seismic performance of CSPSWs regarding the ultimate shear strength and energy‐dissipating capacity, while the influence of corrugation orientations on the performance of the specimens involved in this study could be ignored. [ABSTRACT FROM AUTHOR]

Fiberboard which is not flame retardant and releases formaldehyde is widely used in residents' life, which brings serious problems. Now, we use water glass and Al2(SO4)3 to form zeolite precursor, and use UP as adhesive to prepare zeolite‐based flame retardant formaldehyde‐free medium density fiberboard in situ within a few minutes. The molecular sieve structure was characterized by SEM, TEM, BET, and XRD. At the same time, we put forward the possible mechanism of zeolite formation according to the internal temperature and pressure test during fiberboard production. Wood fiber is coated with zeolite, which separates pyrolysis gas from air and avoids further combustion, resulting in low heat release, low smoke and toxic carbon monoxide emission, high residue, and good flame retardant performance. Furthermore, the formaldehyde emission of the formaldehyde‐free flame retardant board is 0.047 mg/L, which proves that it does not contain formaldehyde. [ABSTRACT FROM AUTHOR]