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Restoring force model of assembled piers connected with grouting sleeves and a mortise hybrid joint

Journal of Traffic and Transportation engineering(English Edition) 2024年

作者： Shangshun Lin Jianshuai Zhang Zhiqing Qin Shiji Ye Jinbing Zhao fujian provincial key laboratory of advanced Technology and information in civil engineering， fujian University of Technology fujian Communications Planning & Design Institute Co.，Ltd. 3. Haoyao Times (fujian) Group Co.，Ltd.

In order to investigate the simplified calculation method of the rebound model of the grouted sleeve and mortise-and-tenon hybrid-connected assembled reinforced concrete piers， quasi-static tests were conducted on three types of piers: cast-in-place piers (SZT-1)， single-span assembled piers (SG-1)， and double-span assembled piers (SGT-1). It was found that the damage modes and seismic performance of the SGT-1 specimens were similar to those of SG-1， while the seismic performance of the hybrid-connected assembled piers was better than that of SZT-1. Parametric analyses were carried out using experimentally-validated finite-element models to investigate the effects of parameters such as axial compression ratio， slenderness ratio， longitudinal reinforcement ratio， concrete strength， and the dimensions and materials of the protruding tenon and steel pipe on the seismic performance of the piers. In addition， the skeleton curve eigenvalue formula and rebound model are proposed， which can be used for elastic-plastic analysis and calculation of hybrid connection assembled piers.

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BiIO4 Nanoflakes for the Degradation of Phenol under Simulated Solar Light Irradiation

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Chinese Journal of Structural Chemistry 2019年第8期38卷 1404-1413页

作者： LIU Min-Yi LIU Qing-Ying ZHENG Yi-Fan LIN Guo-Liang SONG Xu-Chun Department of Chemistry Fujian Normal UniversityFuzhou350007China College of Ecological Environment and Urban Construction Fujian University of TechnologyFuzhou350118China Research Center of Analysis and Measurement Zhejiang University of TechnologyHangzhou310014China fujian provincial key laboratory of advanced technologyand information in civil engineering Fuzhou350118China

BiIO4 nanoflakes were successfully prepared through a facile hydrothermal method. The as-prepared BiIO4 was characterized by scanning electron microscope(SEM), high-resolution transmission electron microscopy(HRTEM), X-ray diffraction(XRD), energy-dispersive spectroscopy(EDS) and ultraviolet visible diffuse reflectance spectroscopy. BiIO4 nanoflakes showed excellent photocatalytic activity for the degradation of phenol solution under simulated solar irradiation. The influence of synthesis temperature on the morphology, size and photocatalytic performance of BiIO4 was investigated. BiIO4 prepared under 140 ℃ exhibited the highest removal rate of phenol under simulated solar light irradiation. In addition, the parametric studies such as the effect of catalyst loading and phenol solution pH were carried out to optimize the reaction conditions. The active species trapping experiment demonstrated that h+ and ·OH are the major active species during the photocatalytic process.

关键词： BiIO4 nanoflakes photocatalytic

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