Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for improving integral type bridge abutment sustaining pile stress performance by H-shaped concrete pile
The invention relates to a method for improving integral type seamless bridge and bridge abutment pile foundation stress performance by an H-shaped concrete pile, and belongs to the field of bridges. The method comprises the following steps that (1) a sustaining pile is simulated through a finite element software and compared with an experiment pile, under the condition that the sustaining pile is in accordance with the experiment pile, the section of the sustaining is designed to an H-shaped section which enables a pile body to have optimal stress performance, and the strong axis and the weak axis of the H-shaped section are clear; (2) concrete with super high toughness is prepared; (3) moulding and bar laying are carried out, a concrete sustaining pile with super high toughness is divided into multiple units to be prefabricated, the end section of each unit is in a rectangular shape, and the middle section of each unit is in an H shape; (4) the multiple units are connected into a whole through connecting steel plates and bolts, the connecting position gradually changes from the solid rectangular section segment to the H-shaped section segment, and multiple threaded rods stretches out and at least stretches into the one fourth position of the next unit; (5) multiple threaded shearing nails are arranged on the pile head of the sustaining pile, and cast-in-place is carried out on the whole bridge abutment. The method can effectively reduce the horizontal anti-thrust rigidity of the pile, significantly increase the durability of the pile, and save the high maintenance cost.
Method for improving integral type bridge abutment sustaining pile stress performance by H-shaped concrete pile
The invention relates to a method for improving integral type seamless bridge and bridge abutment pile foundation stress performance by an H-shaped concrete pile, and belongs to the field of bridges. The method comprises the following steps that (1) a sustaining pile is simulated through a finite element software and compared with an experiment pile, under the condition that the sustaining pile is in accordance with the experiment pile, the section of the sustaining is designed to an H-shaped section which enables a pile body to have optimal stress performance, and the strong axis and the weak axis of the H-shaped section are clear; (2) concrete with super high toughness is prepared; (3) moulding and bar laying are carried out, a concrete sustaining pile with super high toughness is divided into multiple units to be prefabricated, the end section of each unit is in a rectangular shape, and the middle section of each unit is in an H shape; (4) the multiple units are connected into a whole through connecting steel plates and bolts, the connecting position gradually changes from the solid rectangular section segment to the H-shaped section segment, and multiple threaded rods stretches out and at least stretches into the one fourth position of the next unit; (5) multiple threaded shearing nails are arranged on the pile head of the sustaining pile, and cast-in-place is carried out on the whole bridge abutment. The method can effectively reduce the horizontal anti-thrust rigidity of the pile, significantly increase the durability of the pile, and save the high maintenance cost.
Method for improving integral type bridge abutment sustaining pile stress performance by H-shaped concrete pile
ZHUANG YIZHOU (Autor:in) / XU LIANG (Autor:in) / QIAN HAIMIN (Autor:in) / QIU NENG (Autor:in) / ZHOU GUOJIE (Autor:in)
20.05.2015
Patent
Elektronische Ressource
Englisch
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