阅读说明：本技术 预拼装核心筒内临时操作平台及其施工方法 (Temporary operation platform in pre-assembled core barrel and construction method thereof ) 是由 王宇 李永刚 阮晶 梁建勋 于 2019-08-31 设计创作，主要内容包括：本发明具体是一种预拼装核心筒内临时操作平台及其施工方法；其特征是：包括混凝土浇筑前预埋在和核心筒壁两侧的固定板卡槽、可转动的固定板、卡销、挡板、平台、吊耳和木方、木跳板,平台底部两侧设置可转动的固定板,在固定板的后方即平台的内侧设置卡销和挡板,当操作平台安装就位后,卡销和挡板用于限制固定板的转动；平台两侧设置吊耳,在平台上铺设木跳板并用木枋加固。本平台与预留卡槽连接稳固,四周无空缺,没有高空坠物风险。平台本身可在施工现场外拼装,且可以随层逐步提升。不使用满堂脚手架,省去了脚手架材料；节约了材料。适用于一般多、高层建筑电梯井的土建及砌筑阶段施工。(the invention particularly relates to a temporary operating platform in a pre-assembled core barrel and a construction method thereof; the method is characterized in that: the concrete pouring device comprises fixed plate clamping grooves, rotatable fixed plates, clamping pins, baffle plates, platforms, lifting lugs, battens and wood springboards, wherein the fixed plate clamping grooves, the rotatable fixed plates, the clamping pins, the baffle plates, the platforms, the lifting lugs, the battens and the wood springboards are pre-embedded on two sides of the wall of a core cylinder before concrete pouring, the rotatable fixed plates are arranged on two sides of the bottom of each platform, the clamping pins and the baffle plates are arranged behind the fixed plates, namely on the inner; lifting lugs are arranged on two sides of the platform, and a wood springboard is paved on the platform and reinforced by wood purlin. The platform is stably connected with the reserved clamping groove, no gap exists around the platform, and no high-altitude falling risk exists. The platform can be assembled outside a construction site and can be gradually lifted along with the layer. A full scaffold is not used, so that scaffold materials are saved; the material is saved. The method is suitable for civil engineering and masonry stage construction of the elevator shaft of common multi-story and high-rise buildings.)

1. A temporary operation platform in a pre-assembled core barrel is characterized in that: the concrete pouring device comprises fixed plate clamping grooves, rotatable fixed plates, clamping pins, baffle plates, platforms, lifting lugs, battens and wood springboards, wherein the fixed plate clamping grooves, the rotatable fixed plates, the clamping pins, the baffle plates, the platforms, the lifting lugs, the battens and the wood springboards are pre-embedded on two sides of the wall of a core cylinder before concrete pouring, the rotatable fixed plates are arranged on two sides of the bottom of each platform, the clamping pins and the baffle plates are arranged behind the fixed plates, namely on the inner sides of the platforms, and after; lifting lugs are arranged on two sides of the platform, and a wood springboard is paved on the platform and reinforced by wood purlin.

2. The construction method of the temporary operating platform in the pre-assembled core barrel as claimed in claim 1, is characterized in that: comprises that

Step 1, embedding embedded clamping grooves made of welded steel plates at an interval of 1m at two sides of a vertical wall of a core cylinder before pouring a floor beam plate; the clamping grooves need to be subjected to local concrete compression bearing capacity checking calculation according to the span of the actual project and the steel beam distance, and if the clamping grooves do not meet the requirement, the clamping grooves and the steel beam distance need to be adjusted;

Step 2, channel steel is used as a main beam, a rotatable platform fixing plate is arranged between the channel steel, the fixing plate can rotate around a pin shaft, and bayonet locks and baffles 5 for limiting the rotation of the fixing plate are arranged on two sides of the fixing plate; welding lifting lugs on the channel steel, and fixing after paving the wood balks and the wood springboards; the springboard is provided with a hole for hoisting; after the vertical wall of the core barrel is demoulded, the assembled platform is hoisted into the core barrel, and the rotatable fixing plate is fixed into the pre-buried clamping groove and is locked by the clamping pin and the baffle plate;

Step 3, after the platform is installed in place, the platform can be used as a construction platform, and a scaffold bound by steel bars can also be erected on the platform;

step 4, after the next layer of platform is poured and the form is removed, the platform can be directly hoisted to the next layer, and the fixing plate is automatically separated from the clamping groove during hoisting;

Step 5, taking out the clamping groove after the platform is disassembled, and then filling the clamping groove with grouting material; the reinforcing bar is not cut off during the draw-in groove installation, uses to accomplish the back and to fill with the grout material, does not have the weakening to core section of thick bamboo bearing capacity.

Technical Field

The invention relates to the field of building construction, in particular to a temporary operating platform in a pre-assembled core barrel and a construction method thereof.

Background

The core barrel is used as an important lateral force resisting component of a multi-story shear wall structure or a frame-shear wall, and the common building function is used as an elevator shaft or a staircase. When a core barrel is constructed on a construction site, a platform is often required to be erected inside the core barrel, the platform is usually a full scaffold, and the height of the full scaffold is always the top of the building. A large amount of materials and labor are wasted, the efficiency is low, and huge potential safety hazards exist.

disclosure of Invention

The invention aims to overcome the defects and provide a temporary operating platform in a pre-assembled core barrel, which is convenient to operate and high in safety, and a construction method thereof.

In order to achieve the above object, the present invention is realized by:

A temporary operating platform in a pre-assembled core barrel comprises fixed plate clamping grooves, rotatable fixed plates, clamping pins, baffles, platforms, lifting lugs, battens and springboards, wherein the fixed plate clamping grooves are pre-embedded in two sides of the wall of the core barrel before concrete pouring, the rotatable fixed plates are arranged on two sides of the bottom of each platform, the clamping pins and the baffles are arranged behind the fixed plates, namely on the inner side of the platform, and after the operating platform is installed in place, the clamping pins and the baffles are used for limiting the rotation of the fixed plates so as to position the operating platform; lifting lugs are arranged on two sides of the platform, and a wood springboard is paved on the platform and reinforced by wood purlin.

The construction method of the temporary operating platform in the pre-assembled core barrel comprises the following steps

Step 1, embedding embedded clamping grooves made of welded steel plates at an interval of 1m at two sides of a vertical wall of a core cylinder before pouring a floor beam plate; the clamping grooves need to be subjected to local concrete compression bearing capacity checking calculation according to the span of the actual project and the steel beam distance, and if the clamping grooves do not meet the requirement, the clamping grooves and the steel beam distance need to be adjusted;

Step 2, channel steel is used as a main beam, a rotatable platform fixing plate is arranged between the channel steel, the fixing plate can rotate around a pin shaft, and bayonet locks and baffles 5 for limiting the rotation of the fixing plate are arranged on two sides of the fixing plate; welding lifting lugs on the channel steel, and fixing after paving the wood balks and the wood springboards; the springboard is provided with a hole for hoisting; after the vertical wall of the core barrel is demoulded, the assembled platform is hoisted into the core barrel, and the rotatable fixing plate is fixed into the pre-buried clamping groove and is locked by the clamping pin and the baffle plate;

Step 3, after the platform is installed in place, the platform can be used as a construction platform, and a scaffold bound by steel bars can also be erected on the platform;

Step 4, after the next layer of platform is poured and the form is removed, the platform can be directly hoisted to the next layer, and the fixing plate is automatically separated from the clamping groove during hoisting;

Step 5, taking out the clamping groove after the platform is disassembled, and then filling the clamping groove with grouting material; the reinforcing bar is not cut off during the draw-in groove installation, uses to accomplish the back and to fill with the grout material, does not have the weakening to core section of thick bamboo bearing capacity.

This platform has following advantage:

1. the safety is high: the platform is connected with the reserved clamping groove firmly, has no vacancy around and has no risk of falling objects from high altitude.

2. The operation is simple and convenient: the platform can be assembled outside a construction site and can be gradually lifted along with the layer.

3. and (3) material saving: a full scaffold is not used, so that scaffold materials are saved; the platform turnover efficiency is high, and materials are saved.

4. The application range is wide: the method is suitable for civil engineering and masonry stage construction of the elevator shaft of common multi-story and high-rise buildings. The scaffold with small height can be erected on the platform to perform operations such as steel bar binding.

Drawings

FIG. 1 is a first schematic view of the construction sequence of the present invention.

FIG. 2 is a second schematic view of the construction sequence of the present invention.

FIG. 3 is a third schematic view of the construction sequence of the present invention.

FIG. 4 is a fourth schematic view of the construction sequence of the present invention.

FIG. 5 is a fifth schematic view of the construction sequence of the present invention.

FIG. 6 is a sixth schematic view of the construction sequence of the present invention.

Detailed Description

The invention is further illustrated by the following specific examples.

a temporary operating platform in a pre-assembled core barrel comprises fixed plate clamping grooves, rotatable fixed plates, clamping pins, baffles, platforms, lifting lugs, battens and springboards, wherein the fixed plate clamping grooves are pre-embedded in two sides of the wall of the core barrel before concrete pouring, the rotatable fixed plates are arranged on two sides of the bottom of each platform, the clamping pins and the baffles are arranged behind the fixed plates, namely on the inner side of the platform, and after the operating platform is installed in place, the clamping pins and the baffles are used for limiting the rotation of the fixed plates so as to position the operating platform; lifting lugs are arranged on two sides of the platform, and a wood springboard is paved on the platform and reinforced by wood purlin.

The construction method of the temporary operating platform in the pre-assembled core barrel comprises the following steps

Step 1, embedding embedded clamping grooves made of welded steel plates at an interval of 1m at two sides of a vertical wall of a core cylinder before pouring a floor beam plate; the clamping grooves need to be subjected to local concrete compression bearing capacity checking calculation according to the span of the actual project and the steel beam distance, and if the clamping grooves do not meet the requirement, the clamping grooves and the steel beam distance need to be adjusted;

step 2, channel steel is used as a main beam, a rotatable platform fixing plate is arranged between the channel steel, the fixing plate can rotate around a pin shaft, and bayonet locks and baffles 5 for limiting the rotation of the fixing plate are arranged on two sides of the fixing plate; welding lifting lugs on the channel steel, and fixing after paving the wood balks and the wood springboards; the springboard is provided with a hole for hoisting; after the vertical wall of the core barrel is demoulded, the assembled platform is hoisted into the core barrel, and the rotatable fixing plate is fixed into the pre-buried clamping groove and is locked by the clamping pin and the baffle plate;

step 3, after the platform is installed in place, the platform can be used as a construction platform, and a scaffold bound by steel bars can also be erected on the platform;

Step 4, after the next layer of platform is poured and the form is removed, the platform can be directly hoisted to the next layer, and the fixing plate is automatically separated from the clamping groove during hoisting;

Step 5, taking out the clamping groove after the platform is disassembled, and then filling the clamping groove with grouting material; the reinforcing bar is not cut off during the draw-in groove installation, uses to accomplish the back and to fill with the grout material, does not have the weakening to core section of thick bamboo bearing capacity.

As shown in FIG. 1 ~ and FIG. 6, in actual operation, the construction and use method of the temporary platform can be implemented according to the following steps

a) before the floor beam slab is poured, pre-embedded clamping grooves 1 (shown in figure 1) made of welded steel plates are embedded in two sides of a vertical wall of a core cylinder at an interval of 1 m. The draw-in groove needs to carry out the local pressurized bearing capacity of concrete according to the span of actual engineering and girder steel interval and calculates by checking, if not need adjustment draw-in groove and girder steel interval when satisfying.

b) the main beam is made of 12 channel steel 6, a rotatable platform fixing plate 2 is arranged between the channel steels, the fixing plate can rotate around a pin shaft 3, and clamping pins 4 and baffle plates 5 for limiting the rotation of the fixing plate are arranged on two sides of the fixing plate. And (3) welding a lifting lug 7 on the channel steel, and fixing the channel steel after paving a wood balk 8 and a wood springboard 9. The springboard is provided with a hole 10 for hoisting. And d, hoisting the assembled platform into the core barrel after the vertical wall of the core barrel is demoulded, fixing a rotatable fixing plate into the pre-embedded clamping groove 1 in the step a, and locking the fixing plate by a clamping pin 4 and a baffle plate 5. (as shown in FIG. 2)

c) The platform can be used as a construction platform after being installed in place, and a scaffold for binding steel bars can also be erected on the platform.

d) after the next layer of platform is poured and the form is removed, the platform can be directly hoisted to the next layer, and the fixed plate 2 is automatically separated from the clamping groove 1 during hoisting.

e) And taking out the clamping groove 1 after the platform is dismantled, and then filling the clamping groove with grouting material. The reinforcing bar is not cut off during the installation of draw-in groove 1, uses to accomplish the back and to fill with the grout material, does not have the weakening to core section of thick bamboo bearing capacity.

this platform has following advantage:

1. The safety is high: the platform is connected with the reserved clamping groove firmly, has no vacancy around and has no risk of falling objects from high altitude.

2. The operation is simple and convenient: the platform can be assembled outside a construction site and can be gradually lifted along with the layer.

3. And (3) material saving: a full scaffold is not used, so that scaffold materials are saved; the platform turnover efficiency is high, and materials are saved.

4. the application range is wide: the method is suitable for civil engineering and masonry stage construction of the elevator shaft of common multi-story and high-rise buildings. The scaffold with small height can be erected on the platform to perform operations such as steel bar binding.