阅读说明：本技术 一种斜拉桥装配式组合挡块及其使用方法 (Assembled combined stop block of cable-stayed bridge and use method thereof ) 是由 王骞 刘胜高 曾明刚 李忠贤 张营 岳琳 肖世钦 王斐度 陈性祥 罗双全 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种斜拉桥装配式组合挡块及其使用方法。包括有钢梁,钢梁下端设有支座,支座下端活动设有支座垫石,支座两侧的钢梁上分别设有固定挡块,两侧固定挡块相对内侧的下端均设有槽口,槽口上活动设有装配式挡块,装配式挡块与支座垫石之间为后浇带。本发明具有施工简单,使用方便,避免切割止推挡块,能满足施工要求,缩短工期,降低成本的有益效果。(The invention discloses an assembled combined stop block of a cable-stayed bridge and a using method thereof. Including the girder steel, the girder steel lower extreme is equipped with the support, and the activity of support lower extreme is equipped with the support stone backing, is equipped with fixed dog on the girder steel of support both sides respectively, and the relative inboard lower extreme of the fixed dog in both sides all is equipped with the notch, and the activity is equipped with the assembled dog on the notch, is the post-cast strip between assembled dog and the support stone backing. The invention has the advantages of simple construction, convenient use, avoiding cutting the thrust stop block, meeting the construction requirement, shortening the construction period and reducing the cost.)

1. The utility model provides a cable-stay bridge assembled combination dog which characterized in that: including girder steel (1), girder steel (1) lower extreme is equipped with support (6), and support (6) lower extreme activity is equipped with support stone (7), is equipped with fixed dog (2) on girder steel (1) of support (6) both sides respectively, and the lower extreme of the relative inboard of both sides fixed dog (2) all is equipped with notch (8), and the activity is equipped with assembled dog (4) on notch (8), is post-cast strip (5) between assembled dog (4) and support stone (7).

2. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the assembled stop block (4) is connected to the notch (8) of the fixed stop block (2) through a bolt (3).

3. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the assembled stop block (4) is 3-10cm higher than the post-cast strip (5).

4. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the upper end of the assembly type check block (4) is shorter than the lower end longitudinal bridge direction, and the included angle between the edge of the assembly type check block (4) departing from the post-pouring belt (5) and the vertical direction is 2-4^o。

5. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the fixed stop block (2) is connected to the lower end of the steel beam (1) through welding.

6. A method for using the fabricated combination block for cable-stayed bridges according to any one of claims 1 to 5, wherein: the method comprises the following steps:

A. welding the fixed stop block (2) on two sides of a support (6) at the lower end of the steel beam (1), connecting the assembled stop block (4) on a notch (8) of the fixed stop block (2) through a bolt (3), and then transporting the steel beam (1) to a construction site;

B. installing a support (6) at the lower end of the steel beam (1) on a support base stone (7), pouring reinforced concrete on a post-pouring belt (5) between the assembled stop block (4) and the support base stone (7), and continuously installing other components;

C. after the full bridge is folded, the bolt (3) of the fixed stop block (2) and the assembled stop block (4) is removed, the assembled stop block (4) on the notch (8) is moved downwards, and the assembled stop block (4) is separated and taken out.

7. The method for using the fabricated combination block of a cable-stayed bridge according to claim 6, wherein: and in the step B, after the post-cast strip (5) between the assembled stop block (4) and the support base cushion stone (7) is cast with the reinforced concrete for 8-15 days, other components are continuously installed.

8. The method for using the fabricated combination block of a cable-stayed bridge according to claim 6, wherein: and in the step C, after the full bridge is closed, the bolt (3) for fixing the stop block (2) and the assembled stop block (4) is removed, the assembled stop block (4) is knocked downwards, the assembled stop block (4) on the notch (8) moves downwards, and the assembled stop block (4) is separated and taken out.

Technical Field

The invention relates to a cable-stayed bridge consolidation stop block, in particular to an assembled combined stop block of a cable-stayed bridge and a using method thereof.

Background

A cable-stayed bridge is also called a diagonal tension bridge, is a bridge with a main beam directly pulled on a bridge tower by a plurality of guys, and is a structural system formed by combining a pressure-bearing tower, a pulled guy and a bending-bearing beam body.

At present, thrust blocks are respectively arranged on two sides of a support at the lower end of a main beam of a cable-stayed bridge, and the cable-stayed bridge and the thrust blocks are a whole, in a steel structure factory, the thrust stop block and a steel beam (main beam) are welded into a whole, a support at the lower end of the main beam of the cable-stayed bridge is placed on a poured support cushion stone in the installation process, and a post-pouring belt of 40-60 cm is respectively reserved between the support base cushion and the thrust stop blocks at the two sides of the lower end of the steel beam, after the support at the lower end of the steel beam is placed on the support cushion stone, the post-pouring belts at two sides of the support cushion stone are poured by reinforced concrete, the thrust stop blocks at two sides of the steel beam and the support cushion stone are fixed, the cable-stayed bridge is prevented from moving in the installation or rotation process, after the full bridge is folded, parts of the thrust stop blocks close to the two sides of the post-cast strip are manually cut off, and the cut-off parts are larger than the sliding distance of the steel beam support, so that the conversion of a bridge structure system is completed. In the above-mentioned in-process, there is the construction complicacy, and when the manual work cuts off the thrust dog, can destroy the original anticorrosive structure of thrust dog, current most adoption oxygen cutting simultaneously can heat cutting part and around, can all have the influence to thrust dog and girder steel structure, and danger coefficient is high in the cutting process simultaneously, and it is very complicated to polish, handle such as anticorrosive to cutting part after the cutting.

Disclosure of Invention

The invention aims to provide a cable-stayed bridge assembled combined stop block and a using method thereof. The invention has the characteristics of simple construction, convenient use, capability of avoiding cutting the thrust stop block, meeting construction requirements, shortening construction period and reducing cost.

The technical scheme of the invention is as follows: the utility model provides a cable-stay bridge assembled combination dog, including the girder steel, the girder steel lower extreme is equipped with the support, and the activity of support lower extreme is equipped with the support stone backing, is equipped with fixed dog on the girder steel of support both sides respectively, and the relative inboard lower extreme of the fixed dog in both sides all is equipped with the notch, and the activity is equipped with the assembled dog on the notch, is the post-cast strip between assembled dog and the support stone backing.

In the assembled combined stop block for the cable-stayed bridge, the assembled stop block is connected to the notch of the fixed stop block through a bolt.

In the assembled combined stop block for the cable-stayed bridge, the assembled stop block is 3-10cm higher than the post-cast strip.

In the assembled combined check block for the cable-stayed bridge, the upper end of the assembled check block (4) is shorter than the lower end longitudinal bridge, and the included angle between the edge of the assembled check block (4) departing from the post-cast strip (5) and the vertical direction is 2-4^o。

In the assembled combined stop block for the cable-stayed bridge, the fixed stop block is connected to the lower end of the steel beam through welding.

The use method of the assembled combined stop block of the cable-stayed bridge comprises the following steps:

A. welding the fixed stop blocks on two sides of a support at the lower end of the steel beam, connecting the assembly type stop blocks to notches of the fixed stop blocks through bolts, and then transporting the steel beam to a construction site;

B. mounting a support at the lower end of the steel beam on a support cushion stone, pouring reinforced concrete in a post-pouring zone between the assembled stop block and the support cushion stone, and continuously mounting other components;

C. after the full bridge is closed, the bolts for fixing the check blocks and the assembly check blocks are removed, the assembly check blocks on the notches are moved downwards, and the assembly check blocks are separated and taken out.

In the using method of the assembled combined stop block of the cable-stayed bridge, in the step B, after the post-cast strip between the assembled stop block and the support base cushion stone is poured with the reinforced concrete for 8 to 15 days, other components are continuously installed.

In the step C, after the full bridge is folded, the bolt for fixing the stop block and the assembled stop block is removed, the assembled stop block is knocked downwards, so that the assembled stop block on the notch moves downwards, the assembled stop block is separated and taken out, and the conversion of the bridge structure system is completed.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through A, in a steel structure factory, the fixed stop blocks are welded on two sides of a support at the lower end of a steel beam, and after the assembled stop blocks are connected to notches of the fixed stop blocks through bolts, the steel beam is transported to a construction site; B. mounting a support at the lower end of a steel beam on a support base stone, pouring reinforced concrete on a post-pouring belt between an assembly type stop block and the support base stone, continuously mounting a cable-stayed bridge after the post-pouring belt is solidified, and fixing the assembly type stop block and a fixed stop block at two sides of the steel beam and the support base stone by pouring the post-pouring belt at two sides of the support base stone through reinforced cement in the process of mounting the cable-stayed bridge so as to prevent the cable-stayed bridge from moving in the mounting or turning process; C. after the full bridge is folded, removing bolts of the fixed stop block and the assembly stop block, knocking the assembly stop block downwards to enable the assembly stop block on the notch to move downwards, separating and taking out the assembly stop block, enabling the taken-out assembly stop block to be reusable, guaranteeing the sliding distance of the steel beam support through notches on two sides of the post-cast strip, and completing the conversion of a bridge structural system; the invention avoids the technical defect that the conversion of a bridge structure system is completed by manually cutting off part of the thrust stop blocks close to the two sides of the post-cast strip after the full bridge is folded, wherein the cut-off part is larger than the sliding distance of the steel beam support, realizes simple construction and convenient use, avoids cutting the thrust stop blocks and can meet the construction requirements.

2. The invention does not adopt manual cutting to remove the thrust stop block, so that the original anti-corrosion structure can not be damaged, the structures of the stop block and the steel beam can not be influenced, the processing of polishing, anti-corrosion and the like on the cutting part is not needed, the construction period is shortened, and the cost and the labor intensity of workers are greatly reduced.

In conclusion, the anti-thrust stop block has the advantages of being simple in construction, convenient to use, capable of avoiding cutting the anti-thrust stop block, capable of meeting construction requirements, capable of shortening construction period and capable of reducing cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is a schematic view of the assembled block (4) of the present invention after removal;

fig. 4 is a schematic structural view of the fabricated stopper (4) of the present invention.

The labels in the figures are: 1-steel beam, 2-fixed stop block, 3-bolt, 4-fabricated stop block, 5-post-cast strip, 6-support, 7-support cushion stone and 8-notch.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.