CN210086061U

CN210086061U - City viaduct single-column pier bent cap construction equipment

Info

Publication number: CN210086061U
Application number: CN201920114672.3U
Authority: CN
Inventors: 杨大伟; 刘迪祥; 刘帝; 李舜九
Original assignee: Hunan Road and Bridge Construction Group Co Ltd
Current assignee: Hunan Road and Bridge Construction Group Co Ltd
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2020-02-18
Anticipated expiration: 2029-01-23

Abstract

The utility model discloses a city viaduct single-column mound bent cap construction equipment, characterized by including fix the support post in the pier both sides, be located the pier both sides through the stress truss that stay cable supported by pier and support post and at the bent cap template that the stress truss laid. The utility model discloses can effectively solve current city overpass construction and cause the current not enough problem in space of traffic, have the advantage that the construction is safer, convenient and fast, practice thrift the cost.

Description

City viaduct single-column pier bent cap construction equipment

Technical Field

The utility model belongs to overpass construction equipment, concretely relates to city overpass single-column mound bent cap construction equipment.

Background

At present, the single-column pier capping beam of the urban viaduct generally adopts the whole enclosure of a construction area, and a full-space support construction capping beam is erected. The limitation of the existing construction process is as follows:

1. the traffic capacity is greatly reduced: the vehicles cannot pass after the full support is erected, and the passing capacity is greatly reduced even if a door opening reserved lane is erected;

2. increasing traffic guiding pressure: when the single-column pier capping beam is constructed by adopting a full-hall support method, the single-column pier capping beam directly occupies the passing space of original vehicles and pedestrians, and the traffic guiding pressure of other roads is increased;

3. foundation treatment needs to be carefully treated: before a full support is built, foundation reinforcement treatment is carefully carried out, and drainage measures are taken to prevent the engineering quality accidents caused by the fact that the foundation is soaked by rainwater;

4. the safety management difficulty is large: because the construction is carried out in the original road, the original multi-lane is suddenly changed into the single lane, the probability of mutual rear-end collision and collision of vehicles in the section is increased, and even the support is likely to shift and collapse due to collision of the vehicles with the collision-proof wall.

SUMMERY OF THE UTILITY MODEL

The utility model aims at that the construction causes the traffic space that passes not enough to current city overpass, provides a safer, construction convenience is swift, practice thrift the single post mound bent cap construction equipment of city overpass of cost.

Realize the utility model discloses the technical scheme that the purpose was adopted as follows:

the utility model provides a city viaduct single column mound bent cap construction equipment, including fixing the support post in the pier both sides, being located the pier both sides and passing through the bent cap template that the atress truss that suspension cable supported by pier and support post and laid at the atress truss.

The bottom of support post install on pre-buried in the bracket of pier with the pier is fixed, the support post top is provided with stretch-draw pretension platform, the pier stud end of atress truss install on pre-buried in the bracket of pier by the pier supports, the cantilever end of atress truss pass through anchor crossbeam and stretch-draw pretension platform with the stay cable connect by the support post supports.

Advantageous effects

The supporting upright posts, the bent cap templates, the stressed trusses, the embedded brackets, the tensioning and pre-tightening platform, the anchoring cross beams and the stay cables in the utility model are common materials for project construction, and the applicability is strong; foundation treatment is not needed, and cost is saved; the original road traffic space is not changed, the original traffic guidance scheme can be maintained, the bottleneck phenomenon can not be caused, and the safety is guaranteed; the supporting upright posts, the cover beam bottom die, the stressed truss, the embedded brackets, the tensioning and pre-tightening platform, the anchoring cross beam and the stay cables can be made into an assembly, the assembly and disassembly are simple and convenient to operate and can be repeatedly used, and the construction progress is accelerated; the top tension pre-tightening platform can adjust the stress state at any time, so that the stress is controllable, and the quality is guaranteed; the support upright posts and the stay cables are used for replacing the full-space support, so that the construction investment is reduced.

The technical scheme of the utility model is further explained in the following with the attached drawings.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view along AA in fig. 1.

Detailed Description

As shown in fig. 1 and 2, the capping beam construction device for the single-column pier of the urban viaduct provided by the utility model comprises supporting columns 3 fixed on both sides of the pier, stressed trusses 5 located on both sides of the pier and supported by the supporting columns 3 through stay cables 2, and capping beam templates 4 laid on the stressed trusses 5; the bottom of support post 3 install on pre-buried bracket 7 in the pier with the pier is fixed, 3 tops of support post are provided with stretch-draw pretension platform 1, the pier stud end of atress truss 5 install on pre-buried bracket 7 in the pier by the pier supports, the cantilever end of atress truss 5 pass through anchor crossbeam 6 and stretch-draw pretension platform 1 with stay cable 2 connect by support post 3 supports.

During the construction of the bent cap, the construction is carried out by adopting a diagonal draw buckle hanging bracket method, a support upright post 3 is arranged on a pre-buried bracket 7 by a crane, the crane lifts a stress truss 5, the pier stud end of the stress truss 5 is arranged on the pre-buried bracket 7, an anchored stay cable 2 is buckled and hung on a tensioning pre-tightening platform 1 by a cantilever end, the crane is removed, the length of the stay cable 2 is preset, the stress truss 5 is basically in a plane state of a bottom plate of the bent cap, a bottom die of the bent cap is laid, the stay cable 2 is adjusted, a reinforcing bar of the bent cap is bound, a side die is installed to form a bent cap template 4, and a bent cap concrete is poured in the bent cap template 4 to form.

Claims

1. The utility model provides a city elevated bridge single-column mound bent cap construction equipment, characterized by including fix the support post in the pier both sides, be located the pier both sides through the suspension cable by the stress truss that pier and support post supported and the bent cap template of laying at the stress truss, the bottom of support post install pre-buried on the bracket of pier with the pier is fixed, the support post top is provided with stretch-draw pretension platform, the pier column end of stress truss install pre-buried on the bracket of pier by the pier supports, and the cantilever end of stress truss passes through anchor crossbeam and stretch-draw pretension platform and is connected by with the suspension cable the support post supports.