Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pile top deformation adjusting composite board for end-bearing rigid pile composite foundation
The invention relates to a pile top deformation adjusting composite plate for an end-bearing rigid pile composite foundation, which belongs to the technical field of foundation engineering, is arranged at the pile top of a rigid pile, and comprises an upper steel cover plate, a lower steel base plate, a stiffening hoop and a variable-strength foam concrete plate hooped by the stiffening hoop, the upper steel cover plate and the lower steel base plate are located on the two sides of the variable-strength foam concrete plate correspondingly, and a sandwich structure is formed by the three. The composite plate is arranged at the top of the rigid pile, when the stress of the top of the rigid pile exceeds a designed bearing capacity characteristic value, the foam concrete plates with different strengths yield in sequence, follow-up deformation is generated to continue to coordinate pile-soil settlement, and the method is different from an existing pile top adjusting device only depending on a rigidity control method. According to the method, single rigidity control can be converted into rigidity-first and strength-second control, the tolerance of the composite foundation to settlement deformation is increased, and the engineering practice operability of the end-bearing rigid pile composite foundation is greatly improved.
本发明涉及一种端承刚性桩复合地基桩顶变形调节复合板，属于地基基础工程技术领域，设于刚性桩的桩顶，包括上钢盖板、下钢垫板、加劲箍以及通过加劲箍箍紧的变强度泡沫混凝土板，其中上钢盖板和下钢垫板均活动嵌设于加劲箍内，且上钢盖板和下钢垫板分别位于变强度泡沫混凝土板的两侧，三者构成夹心结构。本发明通过在刚性桩顶位置布置复合板，当刚性桩顶应力超过设计承载力特征值时，不同强度的泡沫混凝土板先后屈服，产生后续变形来继续协调桩土沉降，与现行的桩顶调节装置仅靠刚度控制方法不同，本发明能将单一刚度控制转变成先刚度后强度控制，增大了复合地基对沉降变形的容差性，大大提高端承刚性桩复合地基工程实践可操作性。
Pile top deformation adjusting composite board for end-bearing rigid pile composite foundation
The invention relates to a pile top deformation adjusting composite plate for an end-bearing rigid pile composite foundation, which belongs to the technical field of foundation engineering, is arranged at the pile top of a rigid pile, and comprises an upper steel cover plate, a lower steel base plate, a stiffening hoop and a variable-strength foam concrete plate hooped by the stiffening hoop, the upper steel cover plate and the lower steel base plate are located on the two sides of the variable-strength foam concrete plate correspondingly, and a sandwich structure is formed by the three. The composite plate is arranged at the top of the rigid pile, when the stress of the top of the rigid pile exceeds a designed bearing capacity characteristic value, the foam concrete plates with different strengths yield in sequence, follow-up deformation is generated to continue to coordinate pile-soil settlement, and the method is different from an existing pile top adjusting device only depending on a rigidity control method. According to the method, single rigidity control can be converted into rigidity-first and strength-second control, the tolerance of the composite foundation to settlement deformation is increased, and the engineering practice operability of the end-bearing rigid pile composite foundation is greatly improved.
本发明涉及一种端承刚性桩复合地基桩顶变形调节复合板，属于地基基础工程技术领域，设于刚性桩的桩顶，包括上钢盖板、下钢垫板、加劲箍以及通过加劲箍箍紧的变强度泡沫混凝土板，其中上钢盖板和下钢垫板均活动嵌设于加劲箍内，且上钢盖板和下钢垫板分别位于变强度泡沫混凝土板的两侧，三者构成夹心结构。本发明通过在刚性桩顶位置布置复合板，当刚性桩顶应力超过设计承载力特征值时，不同强度的泡沫混凝土板先后屈服，产生后续变形来继续协调桩土沉降，与现行的桩顶调节装置仅靠刚度控制方法不同，本发明能将单一刚度控制转变成先刚度后强度控制，增大了复合地基对沉降变形的容差性，大大提高端承刚性桩复合地基工程实践可操作性。
Pile top deformation adjusting composite board for end-bearing rigid pile composite foundation
一种端承刚性桩复合地基桩顶变形调节复合板
LI YONGHUA (Autor:in) / CHEN GAOXIANG (Autor:in) / LIU XIANGANG (Autor:in) / YU CONGYING (Autor:in)
16.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
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