A Construction and Method of Segmental Connection of Prefabricated Assembled Bridge Piers

A prefabricated assembly and segment technology, applied in the erection/assembly of bridges, bridges, bridge construction, etc., can solve problems such as weak connection of prefabricated pier segments

Active Publication Date: 2019-08-09
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

UHPC is applied between prefabricated pier segments in the connection, making full use of the excellent compressive and tensile properties of UHPC, thus solving the problem of weak prefabricated pier segment connections

Method used

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  • A Construction and Method of Segmental Connection of Prefabricated Assembled Bridge Piers
  • A Construction and Method of Segmental Connection of Prefabricated Assembled Bridge Piers
  • A Construction and Method of Segmental Connection of Prefabricated Assembled Bridge Piers

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Embodiment Construction

[0028] The following is attached figure 1 — attached Figure 7 The specific embodiment of the present invention is further described:

[0029] A construction and method for segmental connection of prefabricated assembled bridge piers, step 1: prepare pre-embedded segment 7, prefabricated steel tube concrete segment 2 and inner sleeve connecting steel tube 11 in a factory, the specific steps are as follows:

[0030] 1 First cut the steel plate into the target size, and then open the bolt holes 16, the UHPC pouring inlet 15, and the UHPC pouring outlet 14 at the corresponding positions.

[0031] 2 The pre-embedded segment 7 is composed of a prefabricated segmental steel pipe 12, an end plate 5, a stiffener 8 and an anchor bolt 4. The prefabricated steel pipe segment 12 is obtained by welding steel plates. The prefabricated steel pipe segment 12 is welded to the end plate 5 , and the stiffeners 8 are welded around the prefabricated steel pipe segment 12 and the end plate 5 . ...

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Abstract

The invention discloses a connecting structure and method for precast assembled pier segments, and belongs to the field of bridge engineering. The connecting structure is a precast assembled steel tube concrete pier based on connection of ultra-high performance concrete (UHPC), an inner sleeve connecting steel pipe and a high-strength bolt. The connecting structure comprises a bearing platform, apre-buried segment, a precast steel tube concrete segment, the inner sleeve connecting steel pipe and a cover beam. The exteriors of the precast steel tube concrete segment and a pre-buried segment are precast steel pipe segments. The precast steel tube concrete segment is partially filled with concrete, and reserved heights of the two ends of the precast steel tube concrete segment are half thatof the inner sleeve connecting steel pipe. The UHPC is applied to the precast pier segments during connection, excellent compressive and tensile properties of the UHPC are fully utilized, and the problem of weak connection of the precast pier segments is solved.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and in particular relates to a structure and method for segmental connection of prefabricated assembled bridge piers. Background technique [0002] Concrete-filled steel pipe piers are widely used in urban bridges, high-pier bridges in mountainous areas, and sea-crossing bridges because of their high strength and stiffness, as well as excellent ductility and energy dissipation capacity. It is used in bridge construction in high-intensity areas. With the rapid development of urban traffic, mountain bridges and sea-crossing bridges, the demand for rapid bridge construction in limited sites has become increasingly prominent. At the same time, in the current urban bridge construction, owners and residents have put forward higher requirements for bridge construction, that is, in addition to ensuring the safety and durability of the bridge structure, it is also necessary to avoid or reduce traffic in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00
Inventor 韩强姜克杰许坤陈龙
Owner BEIJING UNIV OF TECH
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