共查询到19条相似文献,搜索用时 109 毫秒
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作者根据自己的工作经验,论述了底部框架一抗震墙在抗震设计中应注意的要点,及应该采取的抗震构造措施。 相似文献
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木工字梁的挠度计算方法探讨 总被引:1,自引:0,他引:1
对木工字梁的挠度进行了公式推导、试验、计算和验证分析。结果表明,考虑剪切变形时,实测挠度值与预测挠度值非常接近;忽略剪切变形时,实测值和预测值相差非常大。理论和实测证明了在计算木工字梁挠度时剪切变形是不可忽略的。采用试验方法可以得到木工字梁的EI和K值,其可用于准确预测木工字梁的挠度,为木工字梁挠度计算和预测提供了一种比较简单的方法。 相似文献
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基于静态弯曲性能的木质工字梁设计计算方法探讨 总被引:1,自引:0,他引:1
参照钢质工字梁静态弯曲理论,对木质工字梁(IJ)的“荷载一位移”曲线、IJ正应力理论计算值与实测值、IJ整梁挠度理论计算值与实测值的对比分析,结果认定:1)钢质工字粱的静态弯曲理论计算公式,可用于IJ弹性段应力和挠度的分析计算;2)IJ整梁静态弯曲性能的分析计算时,应注意IJ上翼缘压缩特性和下翼缘拉伸特性的差异。 相似文献
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作者着重的对设计中采用的槽模圈梁在施工中的复杂性提出了简便易行的施工工艺,是一项较好的新技术,本文由浅入深的论述了一些实际应用的效果。 相似文献
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本文通过对现浇粱板结构构造、承台拉梁和地下室底板受力的分析,提出了主梁有效高度的 确定方法及承台拉梁和地下室底板钢筋的构造措施。 相似文献
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In a previous paper we presented the efficacy of the extended distinct element method (EDEM) on the collapsing process simulation of timber-frame structures. The results obtained were qualitative, and the need for quantitative simulation was pointed out. In this report, we improved our simulating programs with the aim of establishing a quantitative simulation by EDEM. For this purpose, the parameters of the frame members (beam or column) were determined by comparing the simulated results of four-point bending tests with experimental results. Other parameters of plywood and joint members were determined by simulations of two rail shear and slip tests of joint parts, respectively. Using these parameters we made simulations of the collapsing process of an actual-size plywood-sheathed wall and at the same time carried out the experiments under similar conditions. Simulated load–displacement curves of the plywood-sheathed wall were similar to those obtained in the experiments, and the sequence of failure at nailed joints of the simulation model gave good agreement with that of the experimental collapsing processes. Using these processes, we believe that we established a basic quantitative simulation method to test the collapsing process of timber-frame structures.Part of this paper was presented at the 52nd Annual Meeting of the Japan Wood Research Society, Gifu, April 2002; and at the 7th World Conference of Timber Engineering, Malaysia, August 2002 相似文献
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