| 大跨预应力混凝土空心板的振颤及防范 |
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| 引用本文： | 王勃,刘广义,王劲. 大跨预应力混凝土空心板的振颤及防范[J]. 低温建筑技术, 2002, 0(4): 94-95 |
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| 作者姓名： | 王勃 刘广义 王劲 |
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| 作者单位： | 1. 哈尔滨工业大学土木工程学院,150090
2. 吉林省林业公安干警学校,长春,130021 |
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| 摘 要： | 由于高强钢铰线预应力混凝土空心板厚度减少 ,刚度降低 ,自振频率降低 ,在室内各种振动荷载作用下虽然强度和挠度满足要求 ,但有时使用者会感到不舒适。基于加拿大国家建筑法规提出了当单块预应力混凝土空心板的基频不满足限值时应采用装配整体式方案。为保证装配整体式预应力楼盖共同工作 ,应浇筑混凝土现浇层 ,用正交异性板理论分析楼板基频。通过分析得知加设现浇层可增加楼盖的基频和刚度 ,避免振颤
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| 关 键 词： | 高强钢绞线 共振 基频 装配 |
| 文章编号： | 1001-6864(2002)04-0094-02 |
| 修稿时间： | 2002-01-07 |
VIBRATION OF LONG-SPAN PRESTRESSED CONCRETE HOLLOW SLAB AND PRECAUTION |
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| WANG Bo LIU Guangyi WANG Jin. VIBRATION OF LONG-SPAN PRESTRESSED CONCRETE HOLLOW SLAB AND PRECAUTION[J]. Low Temperature Architecture Technology, 2002, 0(4): 94-95 |
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| Authors: | WANG Bo LIU Guangyi WANG Jin |
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| Affiliation: | WANG Bo 1 LIU Guangyi 1 WANG Jin 2 |
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| Abstract: | The structural design addresses the lightest weight and the longest span.The thickness of prestressed concrete hollow slab could be reduced,and the stiffness and basic frequency could be decreased.Subjected to indooraction,floor is qualified in resistance and deflection.But occupant may feel discomfort.To ensure integrity,concrete should be cast on the floor,through which the basic frequency and stiffness of floor could be improved and vibration could be avoided. |
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| Keywords: | High strength steel strand Resonance Basic frequency Assemble |
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