CN115961774A - Construction method of outer protection frame corresponding to engineering elevator - Google Patents
Construction method of outer protection frame corresponding to engineering elevator Download PDFInfo
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- CN115961774A CN115961774A CN202310075037.XA CN202310075037A CN115961774A CN 115961774 A CN115961774 A CN 115961774A CN 202310075037 A CN202310075037 A CN 202310075037A CN 115961774 A CN115961774 A CN 115961774A
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- 238000010276 construction Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000011120 plywood Substances 0.000 claims description 14
- 238000010408 sweeping Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 description 11
- 230000007306 turnover Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
The invention relates to a construction method of an outer protection frame corresponding to an engineering elevator, which comprises the following steps of 1) building a ground scaffold below two layers; 2) Dividing a plurality of floors with each accumulated floor height less than 20 meters from the second floor into a unit; 3) Mounting cantilever beams on the unit bottom floor slabs of each unit, and fixedly connecting two transverse supporting beams on the outer cantilever parts of the cantilever beams; 4) Manufacturing an outer protection unit frame body on the transverse supporting beam according to the height of each unit, wherein the outer protection unit frame body adopts a double-row double-upright-rod erecting mode, and each layer of the outer protection unit frame body is tied with the building; the elevator protection door is further arranged on the outer side of the material receiving platform, a segmented overhanging structure is adopted, all units can be synchronously installed and independently disassembled, the construction period is saved, and later-stage engineering elevator installation and construction are facilitated.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of an outer protection frame corresponding to an engineering elevator.
Background
Along with the development of building technology, more and more high-rise buildings are provided, after the construction of a main body structure is completed, construction materials such as floor building blocks and the like must be vertically transported through a construction elevator, and the construction elevator is installed on a main body frame and moves along the main body frame. The safety protection between the construction elevator and the building floor is a barrier for ensuring the operation safety of constructors, and the part of the protection structure is generally called as an outer protection frame of the elevator in construction. At the present stage, for buildings with lower floor number, the outer protective frame adopts a floor type scaffold, and the frame body is erected from the bottom layer to the top layer; on the other hand, when the building height is high, it is a serious risk (exceeding a partial project scope with a large risk of a certain scale) to set up the auxiliary scaffold for the construction elevator with a height of 50m or more according to the large project safety control regulation of the building department number 37 order and the number 31 Wen Wei. For example, if a building engineering structure with a building height of more than 50 meters is still erected by adopting a floor type scaffold, a special scheme for constructing the elevator protection frame needs to be compiled, and experts are organized to demonstrate the scheme. Meanwhile, if the building structure is designed with a certain shape, for example, when the first floor position (two floors) is designed with 1.5-3 m cornices, the outer protection frame of the construction elevator cannot be erected on the ground, construction lifting installation and erection of the outer protection frame are influenced, the position for installing the elevator needs to be determined in advance, a construction joint is reserved during structure construction, and after secondary structure engineering is completed and the protection frame of the construction elevator is dismantled, secondary construction of the structure at the position is carried out. Not only wastes materials and is difficult to construct, but also has great potential safety hazard and structural quality hazard in a long construction period.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the high-rise building with the cornice is designed, and a question cannot be built without a ground foundation; the integrated outer protection frame can only be used for completely dismounting the scaffold from top to bottom, so that the construction is troublesome and the material consumption is large.
The invention solves the problems and adopts the technical scheme that:
a construction method of an outer protection frame corresponding to an engineering elevator is carried out according to the following steps:
step one, C15 concrete is adopted at the bottom to make a hardened foundation with the thickness of 100mm, a ground scaffold is erected in a double-row double-upright-rod mode, and the ground scaffold is erected to the lower side of a second-floor slab in height;
dividing a plurality of floors with the accumulated floor height of less than 20 meters into a unit from the second floor;
step three, mounting cantilever beams on unit bottom floor slabs of each unit, wherein the inner ends of the cantilever beams are fixed with the unit bottom floor slabs through U-shaped anchor bars, and the outer ends of the cantilever beams extend to the outer side of the building outer wall to form outer cantilever parts; the two cantilever beams are respectively arranged at two sides of the building opening, and the outer cantilever part is fixedly connected with two transverse supporting beams;
manufacturing an outer protection unit frame body on the transverse support beam according to the height of each unit, wherein the outer protection unit frame body adopts a double-row double-upright-rod erecting mode, the longitudinal distance between upright rods is 1.5m, and the transverse distance between upright rods is 0.8m; the lower end of the outer protection unit frame body is upwards 200mm provided with a longitudinal floor sweeping rod, and a transverse floor sweeping rod is arranged above the longitudinal floor sweeping rod; installing horizontal tie rods layer by layer from the transverse sweeping rod upwards at step intervals of 2.0 meters, and tying each layer with a building;
step five, arranging a material receiving platform in each outer protection unit frame body corresponding to the position of the building hole, wherein the outer side of the material receiving platform is 5cm higher than the inner side of the material receiving platform; an elevator protective door is arranged on the outer side of the receiving platform.
Compared with the prior art, the invention adopting the technical scheme has the prominent characteristics that:
1) The problem that when a building structure is provided with a model and a first layer or a certain layer is provided with a structure with 1.5-3 m cornices, an outer protection frame of a construction elevator cannot be erected on the ground, and construction lifting installation and erection of the outer protection frame are affected is effectively solved. 2) The invention can be applied to the external protection frame of the building main body, and is synchronously constructed with the building main body, compared with the existing external protection frame of the building with one top opening, the invention has strong flexibility and higher turnover efficiency; the main frame body of the engineering elevator can be used for replacing a part which needs to be installed with the engineering elevator in the later construction stage, and when the drawknot structure of the main frame body of the engineering elevator and the building main body is installed, a unit of a certain outer protective frame can be detached independently, so that the erection work of the frame body is reduced.
Preferably, the invention further comprises:
the ground scaffold is made of phi 48x3.6mm steel pipes, the vertical distance between the vertical rods is 1.5m, the transverse distance between the vertical rods is 0.8m, and the step distance between the horizontal tie rods is 1.8 m.
The outer protection unit frame body is structurally characterized in that a short vertical pipe is embedded in the building, and the end part of a horizontal tie rod of the outer protection unit frame body is fixed with the short vertical pipe through a fastener.
The material receiving platform consists of a drawknot supporting structure and a plywood pavement, the drawknot supporting structure comprises a plurality of stressed rods which are densely distributed and arranged, and the stressed rods are drawedly fixed with the vertical rods or the horizontal drawknot rods of the outer protection unit frame body; the plywood decking is secured to the drawknot support structure; the plywood deck includes a bottom panel and left and right side panels; the horizontal distance between the plywood pavement and the elevator cage is 50-120 mm.
The left side face and the right side face of each outer protection unit frame body are provided with diagonal rod supports which are arranged in a zigzag mode, and the diagonal rod supports are fixed with the inner row of upright rods and the outer row of upright rods through rotating fasteners.
Drawings
FIG. 1 is a front elevational view of the ground scaffold of the present invention;
FIG. 2 is a side elevational view of the ground scaffold of the present invention;
FIG. 3 is a detailed front view of the frame body of the outer protective unit of the present invention;
FIG. 4 is a detailed view of the side structure of the outer protective unit frame of the present invention;
fig. 5 is a schematic structural view of the elevator safety protection door of the invention.
In the figure: 1. erecting a rod; 2. a horizontal tie bar; 3. a ground sweeping bar; 4. plywood decking; 5. a force-bearing rod; 6. a cantilever beam; 7. a transverse support beam; 8. a short riser; 9. obliquely supporting; 10. an elevator protective door.
Detailed Description
The invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.
Referring to fig. 1, a construction method of an outer protection frame corresponding to an engineering elevator is performed according to the following steps:
step one, hardening a foundation with the thickness of 100mm at the bottom by adopting C15 concrete, and erecting a ground scaffold in a double-row double-upright-rod mode; the ground scaffold is made of phi 48x3.6mm steel pipes, the vertical distance between the vertical rods 1 is 1.5m, the transverse distance between the vertical rods 1 is 0.8m, and the step distance between the horizontal tie rods 2 is 1.8 m; the ground scaffold is highly erected to the lower side of the second floor, see fig. 1 and 2.
And step two, from the two floors, dividing each floor into a unit, wherein the accumulated height of each floor in each unit is less than 20 meters.
Step three, mounting an cantilever beam 6 on a unit bottom floor of each unit, fixing the inner end of the cantilever beam 6 with the unit bottom floor through a U-shaped anchor bar, and extending the outer end of the cantilever beam 6 to the outer side of the building outer wall to form an outer cantilever part; the two cantilever beams 6 are respectively arranged on two sides of the building opening, and the outer cantilever part is fixedly connected with two transverse supporting beams 7.
Manufacturing an outer protection unit frame body on the transverse supporting beam 7 according to the height of each unit, wherein the outer protection unit frame body adopts a double-row double-upright-rod erecting mode, and the longitudinal distance between upright rods 1 is 1.5m, and the transverse distance between upright rods 1 is 0.8m; the lower end of the outer protection unit frame body is upwards provided with a longitudinal floor sweeping rod 3 by 200mm, and a transverse floor sweeping rod is arranged above the longitudinal floor sweeping rod 3; from the horizontal pole of sweeping the floor upwards, according to step interval 2.0 meters level by level installation horizontal drawknot pole 3, every layer all with the building drawknot. Specifically, the tie structure is that a short vertical pipe 8 is pre-embedded on a building, and the end part of a horizontal tie rod 2 of an outer protection unit frame body is fixed with the short vertical pipe 8 through a fastener.
And fifthly, arranging a material receiving platform in each outer protection unit frame body corresponding to the position of the building opening, wherein the outer side of the material receiving platform is 5cm higher than the inner side of the material receiving platform.
An external open-close elevator protective door 10 is arranged opposite to the material receiving platform and the elevator cage. The horizontal material of elevator guard gate 10 is square pipe, and is vertical for the round steel (be convenient for pass through the fastener with the stand and be connected), highly is 1800mm, and the bolt is in the elevator side, and the steel sheet is sealed for the inboard of door, and the door is closed at spraying suggestion "notice safety, the free hand. The safety protection door is constructed as shown in figure 5.
As each unit frame body of the sectional type overhanging outer protection provided by the invention is independent protection in the main body construction stage, belongs to an open type protection frame, and needs to be provided with the diagonal rod support 9, the unit is in a zigzag shape from bottom to top, the diagonal rod support 9 is continuously arranged between the inner row vertical rods and the outer row vertical rods up and down, the diagonal rod support 9 is fixed on the extending end of the vertical rod 1 or the transverse horizontal rod (namely, the horizontal drawknot rod 2) which is intersected with the diagonal rod support by adopting a rotary fastener, and the structure of the overhanging type protection side face is shown as figure 4.
The material receiving platform consists of a tie supporting structure and a plywood pavement 4, wherein the tie supporting structure comprises a plurality of stress rods 5 which are densely distributed and fixed with cross rods or vertical rods of the outer protection unit frame body; the plywood decking 4 is secured to the drawknot support structure; plywood shop front 4 includes bottom plate and left and right curb plate, and the plywood carries out totally closed processing, and the horizontal distance between plywood shop front and the elevator cage is 50mm ~ 120mm. Detail view 3 of the sectional overhanging type upright surface structure.
The invention has the following characteristics:
the protective frame is synchronously erected with the outer protective frame of the main structure, and is formed in one step without secondary erection.
The material loss is reduced, and the labor cost and the material cost are saved.
The construction period is saved, the construction progress is accelerated, and the construction safety is ensured.
The floor type protective frame is erected to a height of more than 50m and needs expert demonstration, and the sectional erection of the invention does not need expert demonstration, thereby saving the construction period and the authentication cost.
The invention effectively solves the problem that when the building structure is provided with a model and the first floor or a certain floor is designed with a structure with a cornice of 1.5-3 meters, the outer protection frame of the construction elevator cannot be erected on the ground, so that the construction lifting installation and the erection of the outer protection frame are influenced; the invention can be applied to the external protection frame of the building main body, and is synchronously constructed with the building main body, compared with the existing external protection frame of the building with one top opening, the invention has strong flexibility and higher turnover efficiency; the unit of one outer protective frame can be independently dismantled when the drawknot structure of the main frame body of the engineering elevator and the building main body is installed, so that the erection work of the frame body is reduced; the integral outer protection frame is divided into a plurality of small assembly units from bottom to top, so that synchronous construction of all units is realized, and the installation period of the outer protection frame is greatly shortened; each unit of the outer protection frame is provided with an independent supporting foundation, the lower unit does not bear the frame body weight of the upper unit, and the load of the whole frame body is decomposed to a plurality of bearing points, so that the outer protection frame is firmer, and the engineering safety is improved; the invention can save labor cost and accelerate construction progress.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims and their equivalents.
Claims (5)
1. A construction method of an outer protection frame corresponding to an engineering elevator is carried out according to the following steps:
step one, adopt C15 concrete to do the hardened foundation of 100mm thick in the bottom, adopt the form of double pole setting up ground scaffold, its characterized in that:
the ground scaffold is highly erected to the lower side of the second floor;
dividing a plurality of floors with the accumulated floor height of less than 20 meters into a unit from the second floor;
step three, mounting a cantilever beam on the unit bottom floor slab of each unit, wherein the inner end of the cantilever beam is fixed with the unit bottom floor slab through a U-shaped anchor bar; the outer end of the cantilever beam extends to the outer side of the building outer wall to form an outer cantilever part; two cantilever beams are arranged and are respectively arranged on two sides of the building opening; two transverse supporting beams are fixedly connected to the outer cantilever part;
manufacturing an outer protection unit frame body on the transverse support beam according to the height of each unit, wherein the outer protection unit frame body adopts a double-row double-upright-rod erecting mode, the longitudinal distance between upright rods is 1.5m, and the transverse distance between upright rods is 0.8m; a longitudinal floor sweeping rod is arranged 200mm upwards at the lower end of the outer protection unit frame body, and a transverse floor sweeping rod is arranged on the longitudinal floor sweeping rod; installing horizontal tie rods layer by layer from the transverse sweeping rod upwards at step intervals of 2.0 meters, and tying each layer with a building;
step five, arranging a material receiving platform in each outer protection unit frame body corresponding to the position of the building opening, wherein the position, far away from the outer side, of the material receiving platform is 5cm higher than the inner side of the material receiving platform; an elevator protection door is arranged on the outer side of the receiving platform.
2. The construction method of the outer protection frame corresponding to the engineering elevator according to claim 1, characterized in that: the ground scaffold adopts phi 48x3.6mm steel pipes; the vertical distance between the vertical rods is 1.5m; the transverse distance between the vertical rods is 0.8m, and the step distance between the horizontal tie rods is 1.8 m.
3. The construction method of the outer protection frame corresponding to the engineering elevator according to claim 1, characterized in that: the outer protection unit frame body is structurally characterized in that a short vertical pipe is embedded in the building, and the end part of a horizontal tie rod of the outer protection unit frame body is fixed with the short vertical pipe through a fastener.
4. The construction method of the outer protection frame corresponding to the engineering elevator according to claim 1, characterized in that: the material receiving platform consists of a drawknot supporting structure and a plywood pavement, the drawknot supporting structure comprises a plurality of stressed rods which are densely distributed and arranged, and the stressed rods are drawedly fixed with the vertical rods or the horizontal drawknot rods of the outer protection unit frame body; the plywood decking is secured to the bracing support structure; the plywood deck includes a bottom panel and left and right side panels; the horizontal distance between the plywood pavement and the elevator cage is 50-120 mm.
5. The construction method of the outer protection frame corresponding to the engineering elevator according to claim 1, characterized in that: the left side and the right side of each outer protection unit frame body are provided with diagonal rod supports which are arranged in a zigzag manner, and the diagonal rod supports are fixed with the vertical rods through rotating fasteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310075037.XA CN115961774A (en) | 2023-02-07 | 2023-02-07 | Construction method of outer protection frame corresponding to engineering elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310075037.XA CN115961774A (en) | 2023-02-07 | 2023-02-07 | Construction method of outer protection frame corresponding to engineering elevator |
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| CN115961774A true CN115961774A (en) | 2023-04-14 |
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| CN202310075037.XA Pending CN115961774A (en) | 2023-02-07 | 2023-02-07 | Construction method of outer protection frame corresponding to engineering elevator |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202324571U (en) * | 2011-11-01 | 2012-07-11 | 江苏瑞峰建设集团有限公司 | Overhanging type double-row scaffold |
| CN206174436U (en) * | 2016-10-31 | 2017-05-17 | 中建八局第一建设有限公司 | Hard protector of scaffold that encorbelments frame steel sheet |
| CN207314879U (en) * | 2017-09-22 | 2018-05-04 | 四川省第十五建筑有限公司 | A kind of new construction elevator material receiving |
| CN210508317U (en) * | 2019-08-12 | 2020-05-12 | 安徽仁天建筑脚手架安装有限公司 | Overhanging type assembled floor-stopping device for construction elevator |
| CN210858054U (en) * | 2019-07-12 | 2020-06-26 | 中建四局第五建筑工程有限公司 | Regularization construction elevator connects material platform |
| CN211447708U (en) * | 2019-11-06 | 2020-09-08 | 中国建筑第二工程局有限公司 | Super high-rise building construction elevator feeding platform support system that encorbelments |
| CN114753610A (en) * | 2021-10-30 | 2022-07-15 | 上海宝冶集团有限公司 | Construction method of basket type overhanging scaffold |
| CN115627912A (en) * | 2022-09-19 | 2023-01-20 | 上海宝冶集团有限公司 | Construction method of assembled externally-mounted flower basket type overhanging scaffold |
-
2023
- 2023-02-07 CN CN202310075037.XA patent/CN115961774A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202324571U (en) * | 2011-11-01 | 2012-07-11 | 江苏瑞峰建设集团有限公司 | Overhanging type double-row scaffold |
| CN206174436U (en) * | 2016-10-31 | 2017-05-17 | 中建八局第一建设有限公司 | Hard protector of scaffold that encorbelments frame steel sheet |
| CN207314879U (en) * | 2017-09-22 | 2018-05-04 | 四川省第十五建筑有限公司 | A kind of new construction elevator material receiving |
| CN210858054U (en) * | 2019-07-12 | 2020-06-26 | 中建四局第五建筑工程有限公司 | Regularization construction elevator connects material platform |
| CN210508317U (en) * | 2019-08-12 | 2020-05-12 | 安徽仁天建筑脚手架安装有限公司 | Overhanging type assembled floor-stopping device for construction elevator |
| CN211447708U (en) * | 2019-11-06 | 2020-09-08 | 中国建筑第二工程局有限公司 | Super high-rise building construction elevator feeding platform support system that encorbelments |
| CN114753610A (en) * | 2021-10-30 | 2022-07-15 | 上海宝冶集团有限公司 | Construction method of basket type overhanging scaffold |
| CN115627912A (en) * | 2022-09-19 | 2023-01-20 | 上海宝冶集团有限公司 | Construction method of assembled externally-mounted flower basket type overhanging scaffold |
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