Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge foundation structure at abrupt slope section and design method
The invention relates to the technical field of bridge engineering, in particular to an abrupt slope section bridge foundation structure and a design method.The abrupt slope section bridge foundation structure comprises an open cut foundation and a pile foundation, the pile foundation comprises a pile cap and a pile body, the pile foundation is arranged on the side close to an abrupt slope, and the open cut foundation is arranged on the side away from the abrupt slope; the design method comprises the steps that the average rigidity in the longitudinal bridge direction and the average rigidity in the transverse bridge direction within the section full width range are calculated, the rigidity ratio gamma xi in the longitudinal bridge direction and the rigidity ratio gamma yi in the transverse bridge direction are calculated, and the section stress sigma maxi and sigma mini after the foundation rigidity is considered are calculated; and the base size and the layer number of the open cut foundation are determined according to the condition that sigma < maxi > is smaller than [sigma], the pile top load Nz within the pile foundation range is calculated, and the length of the pile foundation is determined according to the pile top load Nz. The open-cut foundation and the pile foundation are effectively combined, the advantages of various foundations are exerted, and the open-cut pile foundation has the advantages of being low in engineering investment, small in occupied area, high in terrain adaptability, small in environmental damage and the like.
本发明涉及桥梁工程技术领域，具体涉及一种陡坡段桥梁基础结构及设计方法，陡坡段桥梁基础结构包括明挖基础和桩基础，桩基础包括桩承台和桩身，桩基础设置于靠近陡坡一侧，明挖基础设置于远离陡坡一侧，明挖基础和桩承台一并浇筑成型，设计方法包括计算截面全宽范围内的顺桥向平均刚度和横桥向平均刚度计算顺桥向刚度比值γxi和横桥向刚度比值γyi，计算考虑基础刚度后的截面应力σmaxi和σmini，根据σmaxi＜[σ]确定明挖基础的基底尺寸和层数，计算桩基础范围内的桩顶荷载Nz，根据桩顶荷载Nz确定桩基础的长度。本发明实现了明挖基础与桩基础的有效组合，发挥各种基础的优势，具有工程投资省、占地少、地形适应能力强、对环境破坏小等特点。
Bridge foundation structure at abrupt slope section and design method
The invention relates to the technical field of bridge engineering, in particular to an abrupt slope section bridge foundation structure and a design method.The abrupt slope section bridge foundation structure comprises an open cut foundation and a pile foundation, the pile foundation comprises a pile cap and a pile body, the pile foundation is arranged on the side close to an abrupt slope, and the open cut foundation is arranged on the side away from the abrupt slope; the design method comprises the steps that the average rigidity in the longitudinal bridge direction and the average rigidity in the transverse bridge direction within the section full width range are calculated, the rigidity ratio gamma xi in the longitudinal bridge direction and the rigidity ratio gamma yi in the transverse bridge direction are calculated, and the section stress sigma maxi and sigma mini after the foundation rigidity is considered are calculated; and the base size and the layer number of the open cut foundation are determined according to the condition that sigma < maxi > is smaller than [sigma], the pile top load Nz within the pile foundation range is calculated, and the length of the pile foundation is determined according to the pile top load Nz. The open-cut foundation and the pile foundation are effectively combined, the advantages of various foundations are exerted, and the open-cut pile foundation has the advantages of being low in engineering investment, small in occupied area, high in terrain adaptability, small in environmental damage and the like.
本发明涉及桥梁工程技术领域，具体涉及一种陡坡段桥梁基础结构及设计方法，陡坡段桥梁基础结构包括明挖基础和桩基础，桩基础包括桩承台和桩身，桩基础设置于靠近陡坡一侧，明挖基础设置于远离陡坡一侧，明挖基础和桩承台一并浇筑成型，设计方法包括计算截面全宽范围内的顺桥向平均刚度和横桥向平均刚度计算顺桥向刚度比值γxi和横桥向刚度比值γyi，计算考虑基础刚度后的截面应力σmaxi和σmini，根据σmaxi＜[σ]确定明挖基础的基底尺寸和层数，计算桩基础范围内的桩顶荷载Nz，根据桩顶荷载Nz确定桩基础的长度。本发明实现了明挖基础与桩基础的有效组合，发挥各种基础的优势，具有工程投资省、占地少、地形适应能力强、对环境破坏小等特点。
Bridge foundation structure at abrupt slope section and design method
一种陡坡段桥梁基础结构及设计方法
ZHONG YAWEI (Autor:in) / WANG CONG (Autor:in) / TAN QINGQUAN (Autor:in) / CHEN KEJIAN (Autor:in) / CHEN JIANFENG (Autor:in) / DAI SHENGYONG (Autor:in) / REN BIN (Autor:in) / GU RENQI (Autor:in) / HE YONG (Autor:in) / LIN RONGLI (Autor:in)
03.01.2023
Patent
Elektronische Ressource
Chinesisch
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