Jianzhu Gangjiegou Jinzhan某会议中心观众厅的屋顶结构梁采用了双索实腹式预应力钢梁。借助有限元软件，对高空一次性张拉、地面一次性张拉以及分阶段张拉三种张拉施工方法进行了比较，同时针对张拉过程中可能存在的不同步张拉情况开展了敏感性分析。此外，还对预应力钢梁在施工阶段的全过程以及后期施工荷载作用下的应力和变形进行了分析，并与施工监测结果进行对比。结果表明：预应力张拉偏差在5%以内，对钢梁的应力、变形及稳定性影响均能够有效控制；有限元分析结果与监测数据吻合较好；在整个施工过程以及后期施工荷载的作用下，结构的各项技术指标均在规范要求范围内。
谢贻军 +5 more
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[Research progress on immune microenvironment imbalance and targeted interventions in osteoarthritis comorbid with diabetes mellitus]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiSun Y, Yang Y.
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[Medical prior-guided TabMap deep learning model for ovarian cancer prediction and interpretability analysis]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhu J, Tan S, Huang F, Cai G, Zhen X.
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Nan Fang Yi Ke Da Xue Xue BaoLi M +8 more
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Sheng Wu Yi Xue Gong Cheng Xue Za ZhiTang Z, Xu J, Jin Z, Li J.
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Nan Fang Yi Ke Da Xue Xue BaoXu L, Li K, Yu M, Zhi Q, An S.
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Zhongguo Dang Dai Er Ke Za ZhiYuan Y, Tang LH, Guan LR.
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Zhongguo Dang Dai Er Ke Za ZhiFeng TT, Zhang DF, Lei ZX.
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Zhongguo Dang Dai Er Ke Za ZhiZhou B, Yang Y.
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Jianzhu Gangjiegou Jinzhan火灾会严重威胁高强钢结构的安全。高强钢受火作用后，其力学性能发生显著劣化，在外部荷载产生的复杂应力状态下易发生断裂破坏，从而导致整体结构发生倒塌，因此需要准确掌握高强钢火灾后的断裂性能。合理的本构模型是准确预测高强钢火灾后断裂性能的重要前提，且该模型需适用于不同应力状态。因此，本文以Q690高强钢为研究对象，通过设计光滑圆棒试件、缺口圆棒试件及平板槽口试件以考虑不同应力状态；将试件分别进行200~1 000 ℃的高温加热，再采用自然冷却和浸水冷却两种方式冷却；随后对受火后的试件进行拉伸试验，从而获得荷载-
柴鸿羽, 蔡文玉
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