| 肋形楼盖的一种有限元算法及内力分布 |
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| 引用本文： | 丁圣果,刘广宁,李绮文.肋形楼盖的一种有限元算法及内力分布[J].建筑结构,1999(6). |
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| 作者姓名： | 丁圣果 刘广宁 李绮文 |
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| 作者单位： | 贵州工业大学土建系!贵阳550003(丁圣果，刘广宁)，贵州省轻纺工业设计研究院!贵阳550003(李绮文) |
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| 摘 要： | 肋形楼盖是梁板协同工作体系，作者提出以十字交叉梁系杆元及矩形四节点板元共同集成总刚计算助形楼盖的直接刚度法，较传统的内力计算方法更为精确。对大量算例结果的分析表明：一般现浇板在次梁位置受正弯矩作用（下缘受拉）；考虑梁板协同作用，结构刚度可以提高３０％左右。
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| 关 键 词： | 肋形楼盖 现浇单向板 双向板 强度 刚度 |
Finite Element Algorithm of Ribbed Slabs System and its Distribution Form of Internal Force |
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| Ding Shenguo,Liu Guangning,Li Qiwen.Finite Element Algorithm of Ribbed Slabs System and its Distribution Form of Internal Force[J].Building Structure,1999(6). |
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| Authors: | Ding Shenguo Liu Guangning Li Qiwen |
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| Affiliation: | Ding Shenguo;Liu Guangning;Li Qiwen |
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| Abstract: | Girder-beam-slab system(cross intersect) is beams that work cooperating with slabs. The article shows direct stiffness method that decussates mast element of beam's system and slab element of rectangular four node's assemblages together total stiffness matrix so as to calculate ribbed slab, more accurate distribution of internal force of slab than traditional calculating methods. Summarization and analysis coming from many calculating examples show: cast-in-place plates at location of beams generally are subjected tO action of positive moment (the lower Of plates are subject to tensile stress); structural stiffness can increase 30% about, if the cooperation of beams with plates is considered. |
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| Keywords: | girder-beam-slab cast-in-place plate one-way slab two-way slab strength stiffiness |
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