CN-117344617-B - Steel concrete superposition Liang Qiaoliang and installation method thereof

CN117344617BCN 117344617 BCN117344617 BCN 117344617BCN-117344617-B

Abstract

The invention discloses a steel concrete superposed beam bridge, which comprises a plurality of superposed beam bodies and two rows of steel concrete upright posts, wherein the superposed beam bodies are arranged in a position between the two rows of steel concrete upright posts side by side, both sides of the superposed beam bodies are provided with rough surface grooves, the inner side wall of the upper end of a bracket beam is provided with a notch groove, the top of the superposed beam body is provided with a sealing plate, the bottom of the notch groove is provided with a pushing mechanism, and a sliding distance adjusting mechanism is arranged in a slideway and used for adjusting the horizontal angle of the superposed beam body. When concrete is poured on the upper part of the superposed beam body, the concrete enters the rough surface groove through the liquid leakage groove opening, so that the adjacent superposed beam bodies are connected, the stability and the structural strength of connection between the adjacent superposed beam bodies are effectively guaranteed, gaps are avoided between the adjacent superposed beam bodies, the concrete can be effectively blocked through the height of the pushing mechanism adjusting sealing plate, the horizontal angle of the superposed beam body is adjusted by the sliding distance adjusting mechanism, the safety is improved, meanwhile, the angle adjustment can be accurately controlled, and the installation efficiency is improved.

Inventors

LI ZHEN
LI WEIJUN
LIU NENGWEN
Zhou jinqiao
HUANG MUJUAN
CHEN XIAOBO
WU YULIN
TANG XIONG

Assignees

中铁五局集团第二工程有限责任公司
中铁五局集团有限公司

Dates

Publication Date: 20260508
Application Date: 20231021

Claims (8)

1. A steel concrete laminated beam bridge comprises a plurality of laminated beam bodies and two rows of steel concrete upright posts, and is characterized in that a bracket beam with an integrated structure is fixedly arranged at the upper end position of the inner side of each steel concrete upright post, a plurality of laminated beam bodies are arranged between the two rows of steel concrete upright posts side by side in a stacking mode, two ends of each laminated beam body are placed on corresponding bracket beams, rough grooves are formed in two sides of each laminated beam body, a plurality of liquid leakage grooves communicated with the rough grooves are uniformly and vertically formed in two sides of the top of each laminated beam body, a notch groove is formed in the inner side wall of the upper end of each bracket beam, a sealing plate is arranged at the top of each laminated beam body, two ends of each sealing plate are placed on the notch grooves at corresponding positions, a pushing mechanism is arranged at the bottom of each notch groove and used for adjusting the height of each sealing plate, sliding distance adjusting mechanisms are arranged in the sliding tracks penetrating through the two ends of each bracket beam, and the sliding distance adjusting mechanisms are used for adjusting the horizontal angle of each laminated beam body; The pushing mechanism comprises a protection box, a jack post and a bolt, wherein the protection box is fixedly arranged on the inner side wall of a bracket beam, a threaded hole is formed in the bottom of the protection box, the bolt is arranged in the threaded hole, a jack is formed in the bottom of the notch groove, the jack post is inserted into the jack hole, a second sliding slot communicated with the protection box is formed in the inner side wall of the jack hole, a sliding plate is fixedly arranged on one side of the jack post, the sliding plate is inserted into the protection box through the second sliding slot, and the top of the bolt is in contact with the bottom of the sliding plate.
2. The reinforced concrete composite Liang Qiaoliang as set forth in claim 1, wherein the sliding distance adjusting mechanism comprises a slide block and a plurality of rollers, a first sliding slot is formed in the upper portion of the bracket beam along the length direction, the first sliding slot is communicated with the slide way, the slide block is inserted into the slide way through the first sliding slot, the plurality of rollers are located at the bottom of the slide way, and the rollers are in rolling contact with the bottom of the slide block.
3. The reinforced concrete composite Liang Qiaoliang as set forth in claim 1, wherein the sealing plate is composed of a steel plate and a rubber plate, and the rubber plate is fixedly adhered to the upper surface of the steel plate.
4. The reinforced concrete composite Liang Qiaoliang as set forth in claim 1, wherein said roughened surface recess surface is a granular roughened surface.
5. The reinforced concrete composite Liang Qiaoliang as set forth in claim 1, wherein two rows of upwardly projecting tie bars are disposed within the composite beam body, the two rows of tie bars being connected by a plurality of tie bars.
6. The reinforced concrete composite Liang Qiaoliang as set forth in claim 1, wherein the embedded ribs are fixedly installed at two ends of the upper portion of the composite beam, two ends of each embedded rib are inserted into the composite beam and welded with the plurality of tie bars, and the middle portions of the embedded ribs are in a convex arc shape.
7. A method of installing a steel reinforced concrete composite girder bridge according to any one of claims 1 to 6, characterized by the steps of: A. Lifting the superposed beam body to a position above the two rows of steel concrete upright posts by adopting a crane; B. placing two ends of a sealing plate in the notch groove; C. The oil cylinder is arranged at the outer end part of the slideway, and then the superposed beam body is placed on the bracket beam through a crane; D. Starting the oil cylinders at the two ends of the slide rail to stretch out and draw back, pushing the sliding block to move on the rolling shaft, and enabling the sliding block to deflect the end part of the bearing superposed beam body to adjust the horizontal angle; E. Repeating the operation to install a plurality of superposed beam bodies on the reinforced concrete upright post side by side, and after the horizontal angle adjustment of the superposed beam bodies is finished, rotating bolts, pushing the sliding plate by the bolts, so that the sealing plate is attached to the bottom of the superposed beam bodies for sealing; F. and pouring concrete to the upper part of the superposed beam body.
8. The method according to claim 7, wherein the roller is removed from the slideway after the adjustment of the horizontal angle of the laminated beam body in the step D is completed.

Description

Steel concrete superposition Liang Qiaoliang and installation method thereof Technical Field The invention relates to the technical field of steel concrete bridges, in particular to a steel concrete superposition Liang Qiaoliang and an installation method thereof. Background In the existing prefabricated building mode, the prefabricated beams are limited by the length of the beams, the production environment, the transportation and installation conditions and the like, so that the beams are prefabricated in sections, the steel concrete bridge is composed of a superposed beam and a bridge deck, the bridge deck is installed on the superposed beam after concrete pouring, a crane is required to be adopted for erection of the superposed beam during installation, and if the crane meets a bridge in a turning section during erection, a worker is required to hold the superposed beam to push the superposed beam to swing so as to adjust the horizontal angle. Disclosure of Invention The invention aims to provide a reinforced concrete laminate Liang Qiaoliang with convenient angle adjustment and safe installation process and an installation method thereof. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a steel concrete laminated beam bridge comprises a plurality of laminated beam bodies and two rows of steel concrete upright posts, and is characterized in that a bracket beam with an integrated structure is fixedly arranged at the upper end position of the inner side of each steel concrete upright post, a plurality of laminated beam bodies are arranged between the two rows of steel concrete upright posts in a stacking mode side by side, two ends of each laminated beam body are placed on corresponding bracket beams, rough surface grooves are formed in two sides of each laminated beam body, a plurality of liquid leakage grooves communicated with the rough surface grooves are vertically formed in two sides of the top of each laminated beam body, a notch groove is formed in the inner side wall of the upper end of each bracket beam, a sealing plate is arranged at the top of each laminated beam body, two ends of each sealing plate are placed on the corresponding notch grooves, a pushing mechanism is arranged at the bottom of each notch groove and used for adjusting the height of each sealing plate, sliding distance adjusting mechanisms are arranged in the sliding tracks penetrating through the two ends of each bracket beam, and the sliding distance adjusting mechanisms are used for adjusting the horizontal angle of each laminated beam body. Further, the sliding distance adjusting mechanism comprises a sliding block and a plurality of rolling shafts, a first sliding slot opening is formed in the upper portion of the bracket beam along the length direction, the first sliding slot opening is communicated with the sliding way, the sliding block is inserted into the sliding way through the first sliding slot opening, the rolling shafts are located at the bottom of the sliding way, and the rolling shafts are in rolling contact with the bottom of the sliding block. Further, pushing mechanism includes protection box, jack-prop and bolt, protection box fixed mounting is at the bracket roof beam inside wall, and the screw hole has been seted up to protection box bottom, the bolt is installed at threaded hole, the jack has been seted up to breach tank bottom portion, the jack-prop is inserted and is located in the jack, and the second slide slot of intercommunication in the protection box has been seted up to the jack-prop one side fixed mounting has the slide, and the slide passes through the second slide slot and inserts to locate in the protection box, bolt top and slide bottom contact. Further, the sealing plate is composed of a steel plate and a rubber plate, and the rubber plate is fixedly adhered to the upper surface of the steel plate. Further, the surface of the rough surface groove is a granular rough surface. Further, two rows of upwardly protruding embedded ribs are arranged in the superposed beam body, and the two rows of embedded ribs are connected through a plurality of lacing wires. Further, embedded bars are fixedly installed at two ends of the upper portion of the laminated beam, two ends of each embedded bar are inserted into the laminated beam and welded with the plurality of tie bars, and the middle portions of the embedded bars are in a protruding arc shape. The method for installing the steel concrete laminated beam bridge comprises the following steps: A. Lifting the superposed beam body to a position above the two rows of steel concrete upright posts by adopting a crane; B. placing two ends of a sealing plate in the notch groove; C. The oil cylinder is arranged at the outer end part of the slideway, and then the superposed beam body is placed on the bracket beam through a crane; D. Starting the oil cylinders at the two ends of the slide rail to stretch out and