Arch bar construction method

A construction method and arch slab technology, which is applied in the direction of construction, building structure, and building material processing, etc., can solve the problems that affect the construction progress, cumbersome installation process, complicated process, etc., and achieve good arch slab structure and simple construction process Effect

Inactive Publication Date: 2014-05-07
SHAANXI LONGHAI ENG CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the construction of the existing arch slab, concrete is poured many times, which makes the pr

Method used

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the examples.

[0012] The present invention mainly includes two major parts of assembling and hoisting of arch plates.

[0013] In the assembly link, the preparation before assembly is carried out first. The arch slab assembly frame is made according to the span, width and sag height of the arch slab after assembly, and the assembly frame is welded with 18-caliber channel steel. In the span direction, two channel steels with a diameter of 18 are used, and the distance between them is 1.5m. Constraint baffles are made at both ends according to the 15mm span of the arch plate, and a sagittal shelf is set in the middle of the span. A lead screw with a diameter of P=38mm and a length of 500mm is set on the top of the vertical frame, and an E18 channel steel movable support is placed on the top of the lead screw. The ground at the lower part of the assembly frame is tamped and leveled wit...

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Abstract

An arch bar construction method comprises the following steps that (1) an arch bar splicing frame is manufactured according the span, the width and the rise of a spliced arch bar, two steel channels are used in the span direction, the two steel channels are connected into a whole by using another steel channel, restraint baffles are manufactured at the two ends of the arch bar splicing frame according to the span of the arch bar, a rise frame is arranged in the midspan, screw rods are arranged on the top of the rise frame, a steel channel movable support is arranged on the tops of the screw rods, and the ground on the lower portion of the arch bar splicing frame is rammed and leveled up through sleepers; (2) the arch bar is spliced in the sequence of convex beams, bolt pull rods, a first half-span arch bar and a second half-span arch bar, wherein the convex beams are arranged on the splicing frame, bolts are arranged on the upper portions of the convex beams, and the two half-span arch bars are respectively arranged on the splicing frame; when the arch plates are mounted, hanging beam bolts fall along with the splicing of the arch bars and are inserted into reserved holes in an arch shell ribbed beam in time; after the two half-span arch bars are spliced, lower chord bolt caps and bolt caps on the arch shell ribbed beam are tightened, the four screw rods on the rise frame are loosened, and a transverse support is demounted.

Description

technical field [0001] The invention relates to an arch slab construction method. Background technique [0002] The arch slab is a structure that uses cast-in-place concrete to combine arch ribs and arch waves into a whole. At present, there are corrugated or broken line arch plates commonly used. The arch foot section of the vault should be provided with transverse steel bars at appropriate places on the top of the arch slab, and connected with the anchor bars of the arch ribs and the longitudinal steel bars at the top of the arch slab to strengthen the integrity of the arch ring. During the construction process of the existing arch slab, concrete is poured many times, which makes the process complicated and the installation process cumbersome, which affects the construction progress. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a construction method for arch ...

Claims

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Application Information

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IPC IPC(8): E04G21/14E04G21/16
Inventor 刘斌
Owner SHAANXI LONGHAI ENG CONSTR
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