| 预应力筏板基础平衡荷载的选取 |
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| 引用本文： | 姚荣,梁云.预应力筏板基础平衡荷载的选取[J].扬州职业大学学报,2010,14(2):35-38. |
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| 作者姓名： | 姚荣 梁云 |
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| 作者单位： | 1. 扬州职业大学,江苏,扬州,225009
2. 扬州城市照明管理处,江苏,扬州,225002 |
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| 基金项目： | 扬州职业大学科研立项课题 |
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| 摘 要： | 在预应力超静定结构设计中选取合理平衡荷载值是高效运用等效荷载法的重要前提，根据预应力混凝土结构抗裂条件推导出预应力筏板基础平衡荷载的表达式，考虑土摩擦阻力对混凝土截面产生轴向预压损失时平衡荷载合理的选取，并以此确定预应力筋量。通过算例验证了公式的可行性，给出预应力筏板基础平衡荷载选取比例。
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| 关 键 词： | 预应力 筏板基础 平衡荷载 |
Selection of Balanced Loads on Pre-stressed Raft Foundation |
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| YAO Rong,LIANG Yun.Selection of Balanced Loads on Pre-stressed Raft Foundation[J].Journal of Yangzhou Polytechnic College,2010,14(2):35-38. |
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| Authors: | YAO Rong LIANG Yun |
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| Institution: | 1. Yangzhou Polytechnic College, Yangzhou 225009, China; 2. Engineering Department of City Lighting Management, Yangzhou 225002, China) |
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| Abstract: | It is an important premise to choose reasonable ratio of balanced loads in applying equivalent load method efficiently. Formula of balanced load about prestressed raft foundation is deduced based on crack resistance condition in pressed concrete structure. Considering the concrete section axial prepressing loss caused by soil restraint, reasonable ratio of balanced loads and quantity of prestressed wire is calculated. In light of the calculation case, it verifies the feasibility of the formula, and offers the reasonable ratio of balanced loads, which can be for the reference of engineering design. |
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| Keywords: | pre-stress raft foundation balanced load |
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