（中南建筑设计院股份有限公司， 武汉 430071）

［摘要］地下室柱下独基的受力及配筋如何考虑底板水浮力对其的影响，是困扰设计人员的一个难题。如何合理有效的布置锚杆，并在设计中准确地考虑其对独基及底板的不利作用，是个很有意义的研究课题。本文以某实际工程为背景，对几种常见的抗浮锚杆布置方式进行了比较分析，验证了在几种布置方式下，抗浮锚杆受力差异不大，较为均匀；底板及独基受力分析结果表明，抗浮锚杆均匀布置于底板中间部位，避开基础，能有效地减小基础底部弯矩和配筋，且底板受力均匀，弯矩及配筋较小；并对独基加底板这种基础形式下，抗浮锚杆的布置方式给出了合理的建议。

［关键词］抗浮锚杆； 基础； 地下室底板； 基底弯矩；

中图分类号： TU473.2 文献标识码： A文章编号：  1002-848X(2016)S2-0524-04

Analysis on the influence of the arrangement of anti-floating anchor on

 the base plate and reinforcement

Zou Jie, Xiao Fei

(Central-South Architectural Design Institute Co., Ltd., Wuhan 430071, China)

Abstract: The stress states of the single-foundation under the column of the basement and how to consider the influence of bottom water buoyancy on the reinforcement is a difficult problem which troubles the structural engineer. Therefore, the research subject is of vital significance. It focuses on how to arrange the anchor bolts reasonably and effectively and making an accurate considering in design about the adverse effect of the anchors on single-foundation and the base plate .Based on the actual project, the arrangement methods of several common anti-floating anchors were compared and analyzed, which verified that although they were arranged differently, there is little difference on the stress states of anti-floating anchors. They all were uniform. In addition, the results of stress states analysis on the bottom board and the single foundation indicate that if the anti floating anchor is uniformly arranged on the bottom board with the foundation avoided, the bending moment and the reinforcement of the base bottom can be effectively reduced, and the stress states of the bottom board can be uniform, and the bending moment and the reinforcement can be small as well. Then, reasonable suggestions can be found on how to arrange anti-floating anchors in this basic form with single-foundation and bottom board.

Keywords: anti-floating anchor; foundation; base plate; base moment