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Exposed column foot joint of a composite pier column and a construction method thereof

A technology of column foot joints and construction methods, which is applied to bridges, bridge parts, bridge construction, etc., can solve problems such as bridge pier column damage, accelerated concrete cracks, and impact on bridge safety, achieving convenient construction, simple structure, and clear force transmission Effect

Pending Publication Date: 2018-12-18
ZHEJIANG UNIV CITY COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when an earthquake occurs, under the action of earthquake load, the corrosion of steel bars will rapidly accelerate the expansion of concrete cracks, which will lead to premature failure of pier columns, seriously affecting the safety of bridges

Method used

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  • Exposed column foot joint of a composite pier column and a construction method thereof
  • Exposed column foot joint of a composite pier column and a construction method thereof
  • Exposed column foot joint of a composite pier column and a construction method thereof

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as Figure 1-3 As shown, the exposed column foot node of a composite bridge pier column provided by the present invention includes GFRP pipe 1, section steel 2, concrete 3, shoe beam 4, steel bar 5, steel bottom plate 6 and anchor bolt 7; Covered in the middle of the GFRP pipe 1, the lower end of which is welded with a shoe beam 4; the shoe beam 4 is welded to the steel bottom plate 6; several steel bars 5 are welded on the steel bottom plate 6, and concrete is poured between the shaped steel 2 and the GFRP pipe 1 3, and form a prefabricated GFRP pipe-concrete-steel composite column structure with the steel base plate 6; a number of anchor bolt holes 8 are opened on the steel base plate 6, and the steel base plate 6 passes through the anchor bolts 7 passing through the anchor bolt holes 8, and the foundation Embedded board connections.

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Abstract

The invention discloses an exposed column foot joint of a composite pier column and a construction method thereof. The column foot joint comprises a GFRP pipe, section steel, a concrete, a shoe beam,a reinforcing bar, a steel bottom plate and an anchor bolt. The section steel is nested in the middle of the GFRP pipe, and the lower end of the section steel is welded with a shoe beam; Boot beam and steel bottom plate welding; The steel base plate is welded with a number of reinforcing bars, section bars and GFRP pipes for pouring concrete and forming a precast GFRP pipe with the steel base plate Concrete-Steel composite column structure; The steel base plate is provided with a plurality of anchor bolt holes, and the steel base plate is connected with the foundation pre-embedded plate through anchor bolts passing through the anchor bolt holes. The invention discloses an exposed column foot joint, which is suitable for prefabricating GFRP-Concrete-Profile steel composite column, clear force transmission, simple structure, easy construction; The GFRP pipe, concrete and section steel are connected with the foundation by welding steel bar on the steel base plate and welding boot beam with section steel. The axial force and bending moment can be transferred effectively by connecting GFRP pipe, concrete and section steel with the foundation.

Description

technical field [0001] The invention belongs to the field of FRP, concrete and steel combined structures, and in particular relates to an exposed column base node of a combined pier column and a construction method thereof. Background technique [0002] With the development of my country's economy and society, bridge construction is becoming more and more common. my country is a country with frequent earthquakes, and the losses caused by earthquakes are incalculable. The role of bridges in the transportation system is very important. When an earthquake occurs, once a bridge collapses or is damaged as an important life channel, it will seriously affect the rescue work and lead to aggravated loss of life and property. A large number of practices have shown that one of the main causes of bridge earthquake damage is the destruction of pier columns. Only with sufficient strength and ductility and reliable foundation nodes can the pier columns work normally during strong earthquak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00
Inventor 邢丽张茹曹庆帅
Owner ZHEJIANG UNIV CITY COLLEGE
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