Hoisting structure of UHPC short rib precast slab

A prefabricated plate and hoisting technology, applied in the erection/assembly of bridges, bridge parts, bridge materials, etc., can solve the problems of difficult demoulding, damage to prefabricated plates and molds, and plate rib extrusion inner membrane, etc., to avoid difficulty in demoulding Effect

Pending Publication Date: 2021-04-09
湖南中路华程桥梁科技股份有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above-mentioned characteristics of the UHPC low-rib bridge deck, the precast slab is hoisted from the formwork and during the hoisting process, there is a large deformation in the long side direction. If the liftin

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  • Hoisting structure of UHPC short rib precast slab
  • Hoisting structure of UHPC short rib precast slab

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Embodiment Construction

[0015] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0016] Such as figure 1 , figure 2 As shown, this is a UHPC low-rib precast panel hoisting structure of the embodiment, including a UHPC low-rib precast panel 1, and the upper plane of the UHPC low-rib precast panel 1 is pre-embedded with more than two internal thread hoisting connections symmetrically with the central axis. Device 2, the internal thread hoisting connection devices 2 are arranged in pairs, and the two internal thread hoisting connection devices 2 are arranged symmetrically in the width direction of the UHPC low-rib prefabricated slab 1 . The internal thread lifting connection device 2 includes an annular steel bar 201 and an internal thread sleeve 20...

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Abstract

The invention discloses a hoisting structure of a UHPC short rib precast slab, which comprises a UHPC short rib precast slab, a plurality of internal thread hoisting connecting devices are symmetrically embedded in the upper plane of the UHPC short rib precast slab with the central axis as the symmetry axis, and a rigid hanging bracket is arranged on the upper plane of the UHPC short rib precast slab and tightly attached to the UHPC short rib precast slab. The rigid hanging bracket is connected with the UHPC short rib precast slab into a whole after being connected with the internal thread hoisting connecting device through the connecting rod, and hoisting equipment hooks the rigid hanging bracket to hoist the UHPC short rib precast slab. According to the hoisting structure of the UHPC short rib precast slab, the cross arm, the screw rod and the internal thread hoisting connecting device pre-buried in the UHPC short rib precast slab are closely connected between the rigid hanging bracket and the UHPC short rib precast slab, and the rigid hanging bracket and the UHPC short rib precast slab are connected into a whole, so that the rigidity of the UHPC short rib precast slab is enhanced; and the phenomena of difficult demolding, cracking of the bottom of the prefabricated slab and the like caused by too large deformation of the UHPC short rib prefabricated slab in the hoisting process are avoided.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a UHPC low-rib prefabricated board hoisting structure. Background technique [0002] UHPC low-rib bridge deck is a new type of bridge deck in recent years. It is suitable for steel-UHPC composite structure bridges. Effectively reduce the self-weight of the bridge deck and avoid the risk of cracking commonly faced by ordinary concrete bridge decks. [0003] The UHPC low-rib bridge deck is composed of panels and longitudinal ribs (or transverse ribs). The panels are thin (no more than 10cm) and require high manufacturing precision; The stiffness in the long side direction is small and the deformation is large. Due to the above-mentioned characteristics of the UHPC low-rib bridge deck, the precast slab is hoisted from the formwork and during the hoisting process, there is a large deformation in the long side direction. If the lifting is not synchronized or the precast slab is dist...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/12E01D101/24E01D101/26
CPCE01D21/00E01D19/125E01D2101/24E01D2101/26
Inventor 江五四王武兵喻满刘兆丰刘旭东马威姜波钱杰
Owner 湖南中路华程桥梁科技股份有限公司
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