CN103993666A - Improved supporting system construction method suitable for large overhung outer floating plate roof - Google Patents
Improved supporting system construction method suitable for large overhung outer floating plate roof Download PDFInfo
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- CN103993666A CN103993666A CN201410223051.0A CN201410223051A CN103993666A CN 103993666 A CN103993666 A CN 103993666A CN 201410223051 A CN201410223051 A CN 201410223051A CN 103993666 A CN103993666 A CN 103993666A
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000007596 consolidation process Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009415 formwork Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract 3
- 238000007689 inspection Methods 0.000 abstract 1
- 208000037805 labour Diseases 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000009416 shuttering Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
Provided is an improved supporting system construction method suitable for a large overhung outer floating plate roof. A technological process comprises the steps of erecting a double-row ground standing type steel pipe scaffold, adding frame body supporting oblique rods and horizontal suspension rods, performing frame body strengthening treatment, arranging horizontal rod supporting rods, strengthening fasteners, arranging connecting wall rods, erecting an overhung parapet wall floating plate bottom cast support, performing stability checking calculation and performing supporting acceptance inspection. The formwork supporting system bearing requirement is achieved by performing strengthening treatment on an original outer scaffold system for construction and erecting an outer overhung bearing platform, normalized construction is quickly and rapidly achieved, the improved supporting system construction method is economic, safe and reliable, erection and demolition are convenient and flexible, revolving materials are saved, the construction efficiency is remarkably improved, and a construction period is obviously shortened. A series of complicated processes for a supporting system and the like used for ground formwork erection by adopting a traditional construction method are well avoided, and materials and labors are greatly saved, and the construction period is shortened.
Description
Technical field
The present invention relates to IPC International Classification of Patents E04B buildings in general constructing technology, the improvement support system construction method of the flare plank house face that is especially suitable for encorbelmenting greatly.
Background technology
At some, have in the building monomer construction of ancient customs characteristic, can often run into the outer length of choosing in parapet top and surpass the plate that wafts more than 2m, belong to overlength bridging piece, this class bridging piece bearing height in construction is higher, shuttering supporting difficulty, if adopt removed after original scaffold, on ground, again work the way of taking vertical support frame, spent material, artificial and the time is many.
Parapet refers to the parapet of building roof periphery, and Main Function, except maintenance safe, also can apply in bottom anti-hydraulic pressure brick and receive head, to avoid waterproofing course infiltration or roof rain water cross flow.According to Building technology rule predetermining, parapet is considered the effect of railing, as building more than 10 floors, height must not be less than 1.2 meters, and for avoiding owner deliberately to add high parapet, puts up squatter building after convenient, also specified altitude is the highest must not be over 1.5 meters.The effect of upper people's parapet is protection personnel's safety, and elevation of building is played to decoration function.Do not go up people's the effect of parapet except decoration for vertical face effect, also fixing malthoid.General on the roof of some unit buildings, become in building operations operation a kind of requisite and there is the part of closure.The height of parapet depends on whether go up people, does not go up people's height and should be not less than 800mm, and upper people's height should be not less than 1300mm.While having concrete to bear down on one, by floor end face, calculate and be as the criterion to the bottom surface of bearing down on one; While bearing down on one without concrete, by floor end face, calculate to parapet end face and be as the criterion.
Along with advancing by leaps and bounds of urban construction, architects bring into play intelligence and wisdom fully, and fantasy emerges the special building of many batches of moulding in succession.For example: the suspended structure at high altitude of highrise building, claim to waft again plate cornice, the building construction technology of this type is a difficult problem for construction always.Its reason mainly adopts the gimmick of High Large Cantilever, meets the demand of using function, and the frame girder on roof even encorbelments outside architectural plane, and the moulding on roof has become the significant scenery together of urban architecture.Especially, wherein some building span greatly, highly high, working load large, difficulty of construction is higher, in order to take into account economical rationality, to ensure the quality of products, guarantee safety, therefore improves corresponding advanced technology to support engineering construction.
Patents document discloses less, such as: Chinese Patent Application No. CN200910115141, the technical field of suspended structure at high altitude construction, refer in particular to a kind of suspended structure at high altitude construction, its technological process and key points for operation are: schematic design → bury underground built-in fitting → select steel pipe, fastener → i iron or shaped steel processing → i iron or shaped steel in place fixing → with φ 48 * 3.5 steel pipe transverses, make each shaped steel be connected into platform → set up steel pipe support support body → laying template, assembling reinforcement, concreting, adopt shaped steel to choose bearing platform support technology outward, solve high-altitude and compared with large span, chosen the problem of structure formwork difficulty outward.
Summary of the invention
The improvement support system construction method that the object of this invention is to provide a kind of flare plank house face that is suitable for encorbelmenting greatly, utilizes the outer bearing platform of choosing, and carries out formwork and the convenient support construction of structure and carries out.
Object of the present invention will realize by following technical measures: technological process comprises, set up the setting of double ground steel pipe scaffold → set up support body knighthead and horizontal hanging stick → carry out support body consolidation process → the arrange reinforcement → wall connecting rod of horizon bar strut → fastener → the carry out cantilevered parapet plate bed die that wafts and support the examination of set up → Stability Checking → support.
Especially, technological process is specially:
1. set up double ground steel pipe scaffold; After basement backfill compacting, parapet bear down on one under set up double ground steel pipe scaffold; The horizontal spacing of scaffold is 0.8m, vertical rod advance 1.6m, and step pitch is from 1.8m, the about 36m of support body height overall;
2. set up support body support rod and carry out support body consolidation process; The one, reserved 100 * 60 grooves in the following two floor plate places of the plate that wafts are chosen in wall top-hung, and by the bottom of rod as in groove, the displacement of anti-stopping bar pin, the other end and wall connecting rod are connected and fixed with right-angle coupler; The 2nd, outside scaffold, set up row's vertical rod as operating platform and guard rail, be connected and fixed with wall connecting rod; Parapet top-hung choose the template die plate that wafts interior row's rod for 1.6m, all the other are 0.8m;
3. horizon bar strut is set; The set spacing of choosing the template die plate that wafts due to parapet top-hung is from larger, and horizon bar load is excessive; Need to strengthen load-bearing capacity, its method is, at the middle part of horizon bar, strut is set for this reason;
4. the reinforcement of fastener; Rod, vertical rod all adopt two right-angle couplers with being connected of vertical equity bar, if the reason because of structure, can not with two fasteners, clip vertical rod and horizon bar simultaneously, below main stress fastener, add a fastener, its fastener must be close to main stress fastener;
5. the setting of wall connecting rod; Root at parapet reserves the support that φ 8mm reinforcing bar is made parapet scope, and wall connecting rod requires one to draw a top, and support wall connecting rod arranges M20 and spends blue bolt and φ 12.5mm wire rope, so that tension support body; At rod support point place, additional levels links bar, and level links bar and is connected with top layer pillar banding by short steel pipes; It is identical with fore-set that level links distance between tie rods;
6. carrying out the cantilevered parapet plate bed die that wafts supports and to set up; Adopt the thick clamping plate of 18mm as parapet and beam-slab template, 80 * 80 wooden a tree, used in making timber for boats are as bolster, and φ 48 * 3.5mm steel pipe and 80 * 80 short tops of wooden a tree, used in making timber for boats are as the vertical support of template;
7. the railing of scaffold floor protection; Scaffold floor is arranged on 3 wall connecting rods, is paved with tightly, leaves metope 100～150mm, with No. 8 galvanized wires, at two ends, with wall connecting rod, ties, and does not draw probe phenomenon; In side, at face, establish the high-grade sole of 180mm;
8. the sealing between scaffold body and building requires: the setting of blanket net: with safety net, be hung between scaffold and exterior wall, building is closed, and anti-falling stop people junk, net should not stretch tight too tightly; The colligation of blanket net requires: when safety net is installed, Bian Shengying is close with support, and tying point should be uniformly distributed, and distance must not be greater than 75cm, mooring points firm and reliable connection; Install plain net should be equal with horizontal plane or outer height in low, generally with 15 °, be advisable, when net is installed, should not tighten.
Advantage of the present invention and effect: original construction is carried out to consolidation process by external scaffolding system and build the outer bearing platform of choosing, reach form bracing system load bearing requirements, the convenient normalized construction of realizing fast, economic security is reliable, take tear open convenient, flexible, save circulation material, efficiency of construction significantly improves, and the duration obviously shortens.Avoided preferably from ground, starting to set up the series of complex operations such as support frame that formwork is used in traditional construction method, saved greatly material, artificial and duration.
Accompanying drawing explanation
Fig. 1 is that the parapet in the embodiment of the present invention 1 is risen the plate form bracing system structural representation that wafts of encorbelmenting.
Fig. 2 is horizon bar ruggedized construction schematic diagram in Fig. 1.
Fig. 3 is that in Fig. 1, wall connecting rod is set up structural representation.
Fig. 4 is Fig. 1 additional levels contact bar structural representation.
Fig. 5 is the process flow diagram in the embodiment of the present invention 1.
Reference numeral comprises: steel tube poles 1, flooring framework 2, groove 3, outer rod 4, wall connecting rod 5, right-angle coupler 6, wire rope 7, flower basket bolt 8, wall-connecting piece 9, additional levels contact bar 10, wooden a tree, used in making timber for boats 11, structural column 12, top connecting rod 13, wood link plate 14, clamping plate 15, tensioner screw rod 16, parapet 17, flare plate 18, horizon bar 19, lengthen and prolong bar 20, additional holder post 21, interior rod 22, cross bar 23, short steel pipes 24.
The specific embodiment
The principle of the invention is, utilizes original scaffold, sets up row's vertical rod as operating platform and guard rail outside it, and in parapet top-hung, chooses to waft below plate two layers and set up the method that rod and structure unloading wire rope are realized shuttering supporting.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1: as shown in Figure 5, technological process comprises, sets up the setting of double ground steel pipe scaffold → set up support body knighthead and horizontal hanging stick → carry out support body consolidation process → the arrange reinforcement → wall connecting rod of horizon bar strut → fastener → the carry out cantilevered parapet plate bed die that wafts and supports the examination of set up → Stability Checking → support.
In aforementioned, technological process is specially:
1. set up double ground steel pipe scaffold; After basement backfill compacting, parapet bear down on one under set up double ground steel pipe scaffold; The horizontal spacing of scaffold is 0.8m, vertical rod advance 1.6m, and step pitch is from 1.8m, the about 36m of support body height overall;
2. set up support body support rod and carry out support body consolidation process; The one, reserved 100 * 60 grooves in the following two floor plate places of the plate that wafts are chosen in wall top-hung, and by the bottom of rod as in groove, the displacement of anti-stopping bar pin, the other end and wall connecting rod are connected and fixed with right-angle coupler; The 2nd, outside scaffold, set up row's vertical rod as operating platform and guard rail, be connected and fixed with wall connecting rod; Parapet top-hung choose the template die plate that wafts interior row's rod for 1.6m, all the other are 0.8m;
3. horizon bar strut is set; The set spacing of choosing the template die plate that wafts due to parapet top-hung is from larger, and horizon bar load is excessive; Need to strengthen load-bearing capacity, its method is, at the middle part of horizon bar, strut is set for this reason;
4. the reinforcement of fastener; Rod, vertical rod all adopt two right-angle couplers with being connected of vertical equity bar, if the reason because of structure, can not with two fasteners, clip vertical rod and horizon bar simultaneously, below main stress fastener, add a fastener, its fastener must be close to main stress fastener;
5. the setting of wall connecting rod; Root at parapet reserves the support that φ 8mm reinforcing bar is made parapet scope, and wall connecting rod requires one to draw a top, and support wall connecting rod arranges M20 and spends blue bolt and φ 12.5mm wire rope, so that tension support body; At rod support point place, additional levels links bar, and level links bar and is connected with top layer pillar banding by short steel pipes; It is identical with fore-set that level links distance between tie rods;
6. carrying out the cantilevered parapet plate bed die that wafts supports and to set up; Adopt the thick clamping plate of 18mm as parapet and beam-slab template, 80 * 80 wooden a tree, used in making timber for boats are as bolster, and φ 48 * 3.5mm steel pipe and 80 * 80 short tops of wooden a tree, used in making timber for boats are as the vertical support of template;
7. the railing of scaffold floor protection; Scaffold floor is arranged on 3 wall connecting rods, is paved with tightly, leaves metope 100～150mm, with No. 8 galvanized wires, at two ends, with wall connecting rod, ties, and does not draw probe phenomenon; In side, at face, establish the high-grade sole of 180mm;
8. the sealing between scaffold body and building requires: the setting of blanket net: with safety net, be hung between scaffold and exterior wall, building is closed, and anti-falling stop people junk, net should not stretch tight too tightly; The colligation of blanket net requires: when safety net is installed, Bian Shengying is close with support, and tying point should be uniformly distributed, and distance must not be greater than 75cm, mooring points firm and reliable connection; Install plain net should be equal with horizontal plane or outer height in low, generally with 15 °, be advisable, when net is installed, should not tighten.
In the embodiment of the present invention, flooring floor height 3250mm; Parapet 17 bottom seats are at building structure 33.80m absolute altitude end face, parapet 17 upper end 35.37m absolute altitudes, the high 1375mm of parapet 17, the wide 2500mm of flare plate 18, the high 746mm of flare plate 18 outside stile wall, flare plate 18 bottom surface updip 100mm; Steel tube poles 1 external diameter 48mm wall thickness 3.5mm, steel tube poles 1 is set up by ground, adjacent steel tube poles 1 spacing 1600mm; In parapet 17 inner sides, erectting the wooden a tree, used in making timber for boats 11 of installing is 80mm * 80mm, high 150mm; The wooden a tree, used in making timber for boats 11 of installing in top connecting rod 13 upper horizontal is 80mm * 80mm, and length is or 300mm; The thick 18mm of clamping plate 15, the thick 250mm of parapet 17, additional holder post 21 upper ends exceed on flare plate 18 outside stile walls along 1500mm; The long 3000mm of bar 20 is prolonged in lengthening, interior rod 22 lower ends of original support system are installed on the groove 3 that the top level structure face outer rim of 30.55m absolute altitude outputs, groove 3 is 100 * 60mm, and in this group, rod 22 upper ends connect respectively the wall connecting rod 5 and steel tube poles 1 and cross bar 23 connected nodes at original support system top by right-angle coupler 6; The lower end that improve to strengthen the outer rod 4 of setting up is installed on the groove 3 that under the top layer of 27.30m absolute altitude, one deck structural plane outer rim is outputed, the outer rod of this group 4 upper ends are outward-dipping prolongs the outer side gusset of bar 20 with the steel tube poles 1 in original support system outside with lengthening respectively and is connected, or prolongs the outer side gusset of bar 20 with additional holder post 21 bottoms and lengthening and be connected.Adjacent additional levels contact bar 10 spacing are identical with corresponding structural column 12 spacing, and additional levels contact bar 10 is inner by structural column 12 corresponding to the horizontal banding of short steel pipes 24;
In the present invention, adopt welding short steel rod on shaped steel, the vertical rod of steel tube frame is inserted thereon, guarantees not occurred level displacement of support body vertical rod; Short steel pipes is welded in employing on section steel beam, and support body horizon bar utilizes fastener bar connection therewith, both convenient, guarantees that again support system is stable, guarantees operating platform stability and safety simultaneously; The feature of bearing platform is that mounting or dismounting are convenient, and the weight of solid memder is less, and technique is simply without specific (special) requirements, and occupied ground is few, is convenient to high-altitude application, and construction technology is simple, cost is low, safe and reliable, practical; Be conducive to organize civilized construction, there is higher promotional value.Be applicable to parapet top-hung and choose the form bracing systems such as the flare width such as plate are large, bearing height the is high construction of wafing of cornicing, encorbelment of the plate that wafts, high-rise roof.
Claims (1)
1. the improvement support system construction method of flare plank house face is suitable for encorbelmenting greatly, it is characterized in that, technological process comprises, sets up the setting of double ground steel pipe scaffold → set up support body knighthead and horizontal hanging stick → carry out support body consolidation process → the arrange reinforcement → wall connecting rod of horizon bar strut → fastener → the carry out cantilevered parapet plate bed die that wafts and supports the examination of set up → Stability Checking → support.
The improvement support system construction method of the flare plank house face that is suitable for encorbelmenting greatly as claimed in claim 1, is characterized in that, technological process is specially:
1. set up double ground steel pipe scaffold; After basement backfill compacting, parapet bear down on one under set up double ground steel pipe scaffold; The horizontal spacing of scaffold is 0.8m, vertical rod advance 1.6m, and step pitch is from 1.8m, the about 36m of support body height overall;
2. set up support body support rod and carry out support body consolidation process; The one, reserved 100 * 60 grooves in the following two floor plate places of the plate that wafts are chosen in wall top-hung, and by the bottom of rod as in groove, the displacement of anti-stopping bar pin, the other end and wall connecting rod are connected and fixed with right-angle coupler; The 2nd, outside scaffold, set up row's vertical rod as operating platform and guard rail, be connected and fixed with wall connecting rod; Parapet top-hung choose the template die plate that wafts interior row's rod for 1.6m, all the other are 0.8m;
3. horizon bar strut is set; The set spacing of choosing the template die plate that wafts due to parapet top-hung is from larger, and horizon bar load is excessive; Need to strengthen load-bearing capacity, its method is, at the middle part of horizon bar, strut is set for this reason;
4. the reinforcement of fastener; Rod, vertical rod all adopt two right-angle couplers with being connected of vertical equity bar, if the reason because of structure, can not with two fasteners, clip vertical rod and horizon bar simultaneously, below main stress fastener, add a fastener, its fastener must be close to main stress fastener;
5. the setting of wall connecting rod; Root at parapet reserves the support that φ 8mm reinforcing bar is made parapet scope, and wall connecting rod requires one to draw a top, and support wall connecting rod arranges M20 and spends blue bolt and φ 12.5mm wire rope, so that tension support body; At rod support point place, additional levels links bar, and level links bar and is connected with top layer pillar banding by short steel pipes; It is identical with fore-set that level links distance between tie rods;
6. carrying out the cantilevered parapet plate bed die that wafts supports and to set up; Adopt the thick clamping plate of 18mm as parapet and beam-slab template, 80 * 80 wooden a tree, used in making timber for boats are as bolster, and φ 48 * 3.5mm steel pipe and 80 * 80 short tops of wooden a tree, used in making timber for boats are as the vertical support of template;
7. the railing of scaffold floor protection; Scaffold floor is arranged on 3 wall connecting rods, is paved with tightly, leaves metope 100～150mm, with No. 8 galvanized wires, at two ends, with wall connecting rod, ties, and does not draw probe phenomenon; In side, at face, establish the high-grade sole of 180mm;
8. the sealing requirement between scaffold body and building; The setting of blanket net: with safety net, be hung between scaffold and exterior wall, building is closed, anti-falling stop people junk, net should not stretch tight too tightly; The colligation of blanket net requires: when safety net is installed, Bian Shengying is close with support, and tying point should be uniformly distributed, and distance must not be greater than 75cm, mooring points firm and reliable connection; Install plain net should be equal with horizontal plane or outer height in low, generally with 15 °, be advisable, when net is installed, should not tighten.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106441689A (en) * | 2016-07-13 | 2017-02-22 | 上海建工集团股份有限公司 | Real-time automatic monitor system for wireless torque wrench |
| CN107227814A (en) * | 2017-06-19 | 2017-10-03 | 中国建筑第二工程局有限公司 | Sectional construction method for large cantilever concrete structure |
| CN107268965A (en) * | 2017-05-25 | 2017-10-20 | 上海建工四建集团有限公司 | The attachment conversion method of monoblock type scaffold without lifting operating mode |
| CN111411772A (en) * | 2020-04-23 | 2020-07-14 | 广州市房屋开发建设有限公司 | Unloading formwork support system and construction method thereof |
| CN113235891A (en) * | 2021-04-29 | 2021-08-10 | 上海宝冶集团有限公司 | Outer throwing frame protection method |
| CN113922740A (en) * | 2021-09-24 | 2022-01-11 | 中冶集团武汉勘察研究院有限公司 | Flexible photovoltaic support using flat roof parapet as support and installation method thereof |
| CN115853314A (en) * | 2022-12-09 | 2023-03-28 | 中国一冶集团有限公司 | Parapet top overhanging component supporting device and construction method |
| CN116856695A (en) * | 2023-06-07 | 2023-10-10 | 中铁九局集团第四工程有限公司 | High-altitude cantilever structure formwork support construction method and support structure |
| CN119754550A (en) * | 2025-02-10 | 2025-04-04 | 中国建筑第五工程局有限公司 | A structural support system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441689A (en) * | 2016-07-13 | 2017-02-22 | 上海建工集团股份有限公司 | Real-time automatic monitor system for wireless torque wrench |
| CN107268965B (en) * | 2017-05-25 | 2023-10-31 | 上海建工四建集团有限公司 | Attachment conversion method of integral scaffold without lifting working condition |
| CN107268965A (en) * | 2017-05-25 | 2017-10-20 | 上海建工四建集团有限公司 | The attachment conversion method of monoblock type scaffold without lifting operating mode |
| CN107227814A (en) * | 2017-06-19 | 2017-10-03 | 中国建筑第二工程局有限公司 | Sectional construction method for large cantilever concrete structure |
| CN107227814B (en) * | 2017-06-19 | 2019-05-03 | 中国建筑第二工程局有限公司 | Sectional construction method for large cantilever concrete structure |
| CN111411772A (en) * | 2020-04-23 | 2020-07-14 | 广州市房屋开发建设有限公司 | Unloading formwork support system and construction method thereof |
| CN113235891A (en) * | 2021-04-29 | 2021-08-10 | 上海宝冶集团有限公司 | Outer throwing frame protection method |
| CN113922740A (en) * | 2021-09-24 | 2022-01-11 | 中冶集团武汉勘察研究院有限公司 | Flexible photovoltaic support using flat roof parapet as support and installation method thereof |
| CN113922740B (en) * | 2021-09-24 | 2023-06-02 | 中冶集团武汉勘察研究院有限公司 | Flexible photovoltaic bracket using parapet wall of flat roof as support and mounting method thereof |
| CN115853314A (en) * | 2022-12-09 | 2023-03-28 | 中国一冶集团有限公司 | Parapet top overhanging component supporting device and construction method |
| CN115853314B (en) * | 2022-12-09 | 2024-07-05 | 中国一冶集团有限公司 | Parapet top overhanging component supporting device and construction method |
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| CN119754550A (en) * | 2025-02-10 | 2025-04-04 | 中国建筑第五工程局有限公司 | A structural support system |
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Application publication date: 20140820 |