CN115961770B - A structure and method for erecting a ground-type external scaffolding passing through an overhanging eave - Google Patents
A structure and method for erecting a ground-type external scaffolding passing through an overhanging eave Download PDFInfo
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- CN115961770B CN115961770B CN202310040499.8A CN202310040499A CN115961770B CN 115961770 B CN115961770 B CN 115961770B CN 202310040499 A CN202310040499 A CN 202310040499A CN 115961770 B CN115961770 B CN 115961770B
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Abstract
本发明涉及一种穿过挑檐的落地式外脚手架搭设结构，在所述的挑檐上延其长度方向间隔均布有多组预埋套管，每组预埋套管为在挑檐宽度方向上相对设置的两个，所述的立杆穿装在该套管内，在挑檐的上端面上各套管的一侧均设置有木方，在宽度方向上的两木方之上搭置有横杆，该横杆通过连接件与外脚手架的立杆连接。本发明还涉及一种穿过挑檐的落地式外脚手架搭设方法，通过这种穿挑檐的外脚手架搭设方法，加快施工进度，减少了人力资源浪费，提高了施工效率。
The present invention relates to a floor-type external scaffolding erection structure that passes through an overhanging eave, wherein a plurality of groups of pre-buried sleeves are evenly distributed along the length direction of the overhanging eaves, each group of pre-buried sleeves is two that are arranged oppositely in the width direction of the overhanging eaves, the vertical poles are inserted into the sleeves, a wooden square is arranged on one side of each sleeve on the upper end surface of the overhanging eaves, a cross bar is arranged on the two wooden squares in the width direction, and the cross bar is connected to the vertical poles of the external scaffolding through a connecting piece. The present invention also relates to a floor-type external scaffolding erection method that passes through an overhanging eaves, by means of the external scaffolding erection method that passes through an overhanging eaves, the construction progress is accelerated, the waste of human resources is reduced, and the construction efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of building construction, and relates to a scaffold erection structure method, in particular to a floor type external scaffold erection structure penetrating through cornices and a floor type external scaffold erection method.
Background
The outer scaffold is widely used, and various floor-type outer scaffold, hanging scaffold, picking scaffold, hanging scaffold and the like are commonly used at present and are generally erected on the periphery of a building. The outer scaffold is mostly used for outer wall masonry and outer elevation decoration and reinforced concrete engineering. The external scaffold has the functions of building, including building external scaffold, such as formwork, external wall heat preservation and paint, and the like.
For building engineering with cornice structure, the floor type outer scaffold in the prior art firstly sits the bottom of the scaffold on the cornice of which the next layer is poured, and the cornice concrete structure strength of the layer meets the requirement, so that the outer scaffold can be continuously erected on the scaffold, and the construction progress is seriously influenced because the curing time of the concrete is long, generally about 28 days is required.
In the second prior art, the scaffold is erected on the outer side of the cornice, and the outer scaffold is fixed by the wall connecting piece, but the wall connecting piece is longer for the outer cornice with the width of more than or equal to 3m, so that the stability and the safety of the scaffold are not facilitated, and the standard requirement of the scaffold is exceeded.
At present, no method for solving the problem of safety in building the outer scaffold at the overhanging position and avoiding influence on the construction progress of the outer scaffold exists in the field of building the outer scaffold. In view of the above, the invention designs a floor type outer scaffold erection method penetrating through the cornices, which can ensure the normal functions of the outer scaffold and simultaneously solve the influence of the cornices on the erection of the outer scaffold, thereby accelerating the construction progress and reducing the construction cost.
Disclosure of Invention
The invention aims to provide a floor type outer scaffold erection structure and method penetrating through cornices, which can effectively solve the influence of the traditional cornices on the outer scaffold erection, thereby achieving the purposes of accelerating construction progress and saving cost.
The invention solves the technical problems by the following technical proposal:
The floor type outer scaffold erection structure comprises cornices and upright rods and cross rods of the outer scaffold, and is characterized by further comprising sleeves and battens, wherein a plurality of groups of embedded sleeves are uniformly distributed on the cornices along the length direction of the cornices at intervals, each group of embedded sleeves are two oppositely arranged in the width direction of the cornices, the upright rods are arranged in the sleeves in a penetrating mode, the battens are arranged on one side of each sleeve on the upper end face of each cornice, and the cross rods are arranged on the two battens in the width direction and are connected with the upright rods of the outer scaffold through connecting pieces.
Moreover, the sleeve is a PVC sleeve.
And the distance between the sleeve and the two outer walls is not more than 300mm.
A floor type outer scaffold erection method penetrating through cornices is characterized by comprising the following steps:
the method comprises the steps of 1, normally erecting an cornice inner scaffold and a layer of outer scaffold in a conventional manner, and pouring cornice floor slabs, wherein a vertically-through sleeve is pre-embedded on the cornice floor slabs before pouring, and the pre-embedded position of the sleeve is determined according to the position of the upright pole foot of the upper layer of outer scaffold erected in the future, so that the distance between the sleeve and the outer wall of the two layers is not more than 300mm;
step 2, daily maintenance is carried out for 3 days after the cornice floor slab is poured, a rebound instrument detects whether the strength of cornice concrete reaches 50% of the design strength, and if so, a channel and a working surface are provided for building and erecting an outer scaffold penetrating through the cornice;
and 3, enabling the vertical rods of the outer scaffold to penetrate through the cornice embedded sleeve, normally erecting a layer of floor type outer scaffold according to specifications, continuing erecting more than two layers of outer scaffold through the vertical rods penetrating through the sleeve, and arranging a wall connecting piece to ensure the stability of the outer scaffold.
When one layer is used for other operation and construction, the outer scaffold is required to be removed, whether the cornice floor reaches 100% of design strength is detected, and the inner scaffold and the outer scaffold below the cornice can be removed after the requirements are met.
The invention has the advantages and beneficial effects that:
1. The floor type outer scaffold erection structure and method for penetrating through the cornices can accelerate construction progress, reduce human resource waste and improve construction efficiency by the outer scaffold erection method for penetrating through the cornices;
2. the method has simple principle, does not need other auxiliary matched complex equipment, has low manufacturing cost, saves cost and has high economic benefit;
3. the method has strong practicability, can be widely popularized in the field of house construction and is comprehensively popularized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic view illustrating the construction of the present invention to erect an inner scaffold and the position of a layer of outer scaffold.
Reference numerals
1-Upright posts, 2-cross bars, 3-battens, 4-cornices, 5-sleeves and 6-wall connecting pieces.
Detailed Description
The invention is further illustrated by the following examples, which are intended to be illustrative only and not limiting in any way.
In the prior art, the outer scaffold is of a frame body structure on the same vertical surface, and is arranged on the outer side of the cornice, so that the outer scaffold is far away from two layers of wall surfaces, and unstable potential safety hazards exist after the longer wall connecting pieces are connected.
The floor type outer scaffold erection structure comprises cornices 4, upright rods 1 and cross rods 2 of the outer scaffold, and is characterized by further comprising sleeves 5 and battens 3, wherein the sleeves are PVC sleeves, a plurality of groups of embedded sleeves are uniformly distributed on the cornices along the length direction at intervals, each group of embedded sleeves are two oppositely arranged in the width direction of the cornices, the upright rods are arranged in the sleeves in a penetrating mode, and load on the upper portion of the scaffold is transmitted to the ground through the upright rods penetrating through the cornices, so that the purpose of floor support is achieved. When the concrete of corning of pouring reaches 100% design intensity, all set up the side of each sheathed tube on the up end of cornice and put the horizontal pole on two wood sides of width direction, this horizontal pole passes through the connecting piece and is connected with the pole setting of outer scaffold. The connecting piece is used for constructing the scaffold in the prior art. The distance between the sleeve and the two outer walls is not more than 300mm. The distance can use shorter wall connecting pieces, and the outer frame can be more stable.
When the outer scaffold at the lower end of the cornice is required to be dismantled due to construction, the load of the outer scaffold at the upper end of the cornice is transmitted to the cornice through square timber, so that the purpose that the outer scaffold at the upper part can be continuously used is achieved.
A floor type outer scaffold erection method penetrating through cornices is innovative in that the method comprises the following steps:
Step 1, normally erecting an inner cornice scaffold and a layer of outer scaffold in a conventional manner, wherein the inner scaffold supports a cornice bottom template, the layer of outer scaffold provides a working face and a face edge protection for steel bar binding and concrete pouring, when one layer of cornice floor slab is erected, a vertically through phi 60 sleeve is embedded in the sleeve, the sleeve is made of PVC, the embedded position of the sleeve is determined according to the positions of more than two layers of outer scaffold upright rod feet in future, and the distance between the sleeve and the outer wall of the two layers of outer scaffold is not more than 300mm;
Step 2, daily maintenance is carried out for 3 days after the cornice floor slab is poured, a rebound instrument detects whether the cornice concrete strength reaches 50% of the design strength or not, about 3 days or not, and if the cornice concrete strength reaches the condition that the cornice lower inner scaffold cross bar is removed, a channel and a working surface are provided for an outer scaffold (a layer of upper outer scaffold) penetrating through the cornice;
and 3, enabling the vertical rods of the outer scaffold to penetrate through the cornice embedded sleeve, normally erecting a layer of floor type outer scaffold according to specifications, continuing erecting more than two layers of outer scaffold through the vertical rods penetrating through the sleeve, and arranging the wall connecting piece 6 to ensure the stability of the outer scaffold.
When one layer is used for other operation construction and the outer scaffold is required to be removed, detecting whether the cornice floor reaches 100% of design strength, and removing the inner scaffold and the outer scaffold below the cornice after meeting the requirements.
Because more than two layers of outer scaffold are erected on the basis of one layer of outer scaffold, the upper wood or steel pipe is supported below the cross rod of the outer scaffold at the two layers of cornice floor before the scaffold is dismantled, so that the upper outer scaffold is ensured not to fall.
Compared with the prior art, the method for erecting the outer scaffold penetrating through the cornices can erect the outer scaffold on the upper layer without waiting for 100% of design strength of the cornice floor slab, and avoids hidden troubles of poor safety and stability of the outer scaffold caused by the ultralong wall connecting piece. The construction progress of project main engineering is greatly accelerated, the manpower resource waste is reduced, and the material turnover efficiency and the construction efficiency are improved. The outer scaffold penetrating the cornice meets the standard requirements of outer scaffold erection in the aspects of safety and stability, and has good use condition in the engineering construction process.
Although the embodiments of the present invention and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, modifications and changes are possible without departing from the spirit and scope of the invention and the appended claims. Accordingly, the scope of the invention is not limited to that disclosed in the examples and figures.
Claims (4)
1. The floor type outer scaffold erection method through the cornice is characterized by being realized based on a floor type outer scaffold erection structure through the cornice, wherein the floor type outer scaffold erection structure through the cornice comprises cornice, upright rods of the outer scaffold, cross rods, sleeves and battens, a plurality of groups of embedded sleeves are uniformly distributed on the cornice along the length direction at intervals, each group of embedded sleeves are two oppositely arranged in the width direction of the cornice, the upright rods are arranged in the sleeves in a penetrating manner, battens are arranged on one side of each sleeve on the upper end face of the cornice, and the cross rods are arranged on the two battens in the width direction and are connected with the upright rods of the outer scaffold through connecting pieces;
the method for erecting the floor type outer scaffold penetrating through the cornices comprises the following steps of:
Before pouring, embedding a vertically through sleeve on the cornice, and determining the embedded position of the sleeve according to the position of the upright rod foot of the upper outer scaffold, so as to ensure that the distance between the sleeve and the outer wall of the two layers is not more than 300mm;
Step 2, daily maintenance is carried out for 3 days after the cornice floor slab is poured, a rebound instrument detects whether the strength of cornice concrete reaches 50% of the design strength, and if so, a channel and a working surface are provided for erecting an upper outer scaffold;
and 3, enabling the vertical rods of the outer scaffold to penetrate through the cornice embedded sleeve, normally erecting a layer of floor type outer scaffold according to specifications, continuing erecting more than two layers of outer scaffold through the vertical rods penetrating through the sleeve, and arranging a wall connecting piece to ensure the stability of the outer scaffold.
2. The method of building a floor-standing outer scaffold through a cornice as claimed in claim 1, wherein the sleeve is a PVC sleeve.
3. The method of building a floor-standing outer scaffold through a cornice of claim 1, wherein the sleeve on the side of the outer walls is no more than 300mm from the outer walls.
4. The method for erecting the floor type outer scaffold penetrating through the cornice according to claim 1, wherein when one layer is subjected to other operation and construction, the outer scaffold is required to be dismantled, whether the cornice floor reaches 100% of design strength is detected, and the inner scaffold and the outer scaffold below the cornice can be dismantled after the requirements are met.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310040499.8A CN115961770B (en) | 2023-01-11 | 2023-01-11 | A structure and method for erecting a ground-type external scaffolding passing through an overhanging eave |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310040499.8A CN115961770B (en) | 2023-01-11 | 2023-01-11 | A structure and method for erecting a ground-type external scaffolding passing through an overhanging eave |
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| Publication Number | Publication Date |
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| CN115961770A CN115961770A (en) | 2023-04-14 |
| CN115961770B true CN115961770B (en) | 2025-04-29 |
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| CN118441880B (en) * | 2024-06-26 | 2025-08-08 | 中国二十二冶集团有限公司 | Cornice foot hand rest supporting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203856182U (en) * | 2014-05-15 | 2014-10-01 | 中航天建设工程有限公司 | Novel cantilever scaffold structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2538905Y (en) * | 2002-04-17 | 2003-03-05 | 中国建筑第一工程局第三建筑公司 | External use ultra-high single-row of scaffold |
| CN211736290U (en) * | 2019-11-12 | 2020-10-23 | 淮安市建筑工程质量检测中心有限公司 | A kind of shell section large-span overhanging eaves high-altitude erecting formwork work platform |
| CN212802412U (en) * | 2020-06-22 | 2021-03-26 | 北京建工集团有限责任公司 | Tower type scaffold for artificial passage |
| CN217581226U (en) * | 2022-04-08 | 2022-10-14 | 中国联合工程有限公司 | Roof cornice board support frame system |
| CN115506566A (en) * | 2022-06-23 | 2022-12-23 | 中国五冶集团有限公司 | High-rise building component support system that encorbelments |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203856182U (en) * | 2014-05-15 | 2014-10-01 | 中航天建设工程有限公司 | Novel cantilever scaffold structure |
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