基于三水准设防的抗浮锚杆系统设计方法
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1.中交建冀交高速公路投资发展有限公司;2.河北工业大学;3.沧州交通学院土木建筑工程学院;4.河北工业大学土木与交通学院

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X947

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国家自然科学基金(52278342);国家重点研发项目(2017YFC0805404)


The Design Method for Anti-floating Bolt System Based on Three-level Fortification
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1.Zhong Jiao Jian Ji Jiao Highway Investment Development Co.LTD;2.Hebei University of Technology

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    摘要:

    为减少抗浮设计不合理而引发的地下结构破坏,因此,将抗震与消防工程设计理念引用到抗浮设计中。基于抗震设防设计理念与抗浮锚杆锚固的工作机理,提出了地下结构的抗浮锚杆系统中三水准设防设计方法,并明确了该设计方法的实施思路。通过地下结构的抗浮锚杆系统中三水准设防设计方法,以某写字楼地下室的抗浮锚杆失效工程为案例,研究了抗浮锚杆设计的优化方案。结果表明:通过抗浮锚杆系统的失效机理,确定了三水准设防设计理念下的锚固件长度、锚杆抗拔承载力、锚杆间距等参数值,均满足设计要求。可见提出地下结构的抗浮锚杆系统中三水准设防设计方法,为地下结构抗浮锚杆系统安全管理提供依据。

    Abstract:

    In order to reduce the damage of underground structure caused by unreasonable anti- floating design, the design concept of the anti-seismic and fire protection engineering was introduced into anti-floating design. Based on the concept of anti-seismic fortification design and the working mechanism of anti-floating bolt, the three-level fortification design method for anti-floating bolt system of underground structures was proposed, and the implementation idea of the design method was clarified. And then the three-level fortification design method was imported into the anti-floating bolt system. The anti-floating bolt design was optimized based on the failure project of the anti-floating bolt on the basement of a certain office building. The results show that based on the failure mechanism of the anti-floating bolt system, the parameter values such as anchorage length, bolt pull-out capacity, and bolt spacing were determined for the three-level fortification design concept, which met design demand. It is concluded that the three-level fortification design method for anti-floating bolt system of underground structures provides a basis for the safety management of anti-floating bolt system.

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耿斌斌,乔建刚,李娟,等. 基于三水准设防的抗浮锚杆系统设计方法[J]. 科学技术与工程, , ():

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  • 收稿日期:2023-09-21
  • 最后修改日期:2024-05-26
  • 录用日期:2024-06-05
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