CN203361471U - Cable-stay device applied to large-span cantilever floor structure - Google Patents
Cable-stay device applied to large-span cantilever floor structure Download PDFInfo
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- CN203361471U CN203361471U CN2013203482952U CN201320348295U CN203361471U CN 203361471 U CN203361471 U CN 203361471U CN 2013203482952 U CN2013203482952 U CN 2013203482952U CN 201320348295 U CN201320348295 U CN 201320348295U CN 203361471 U CN203361471 U CN 203361471U
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- Prior art keywords
- rod iron
- steel bar
- encorbelmenting
- floor structure
- node
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- 229910000754 Wrought iron Inorganic materials 0.000 claims description 76
- 229910000831 Steel Inorganic materials 0.000 abstract description 26
- 239000010959 steel Substances 0.000 abstract description 26
- 238000010276 construction Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of construction engineering, particularly to a cable-stay device applied to a large-span cantilever floor structure. The cable-stay device adopts a steel bar with the diameter larger than 150 mm; the tensile grade of the steel bar is higher than or equal to grade Q650; the steel bar adopts a sectional type combined structure and comprises a first steel bar, a second steel bar and a third steel bar; a length adjusting node is arranged between the first steel bar and the second steel bar; a connecting node is arranged between the second steel bar and the third steel bar. According to the structural stress characteristics, a large-diameter and high-strength steel bar device is adopted, an elastic pivot point is provided at a corresponding position at the middle part of a large span or on a upright post at a cantilever end, and load is transferred to the upright post through a floor or roof and then to the cable-stayed steel bar, so that the stress is clear.
Description
Technical field
The utility model relates to construction engineering technical field, specifically a kind of being used in greatly across the oblique drawing device in the floor structure of encorbelmenting.
Background technology
Along with social development, people are more and more higher for the requirement of building, and wherein for greatly, across the emerging in large numbers of (encorbelmenting) floor structure, its corresponding span is also increasing in outstanding behaviours.In the past usually adopt greatly the technology such as girder system, prestressed inclined stay cable, shaped steel diagonal member across the floor structure of encorbelmenting, exist that construction is complicated, construction quality is difficult to guarantee and the impact building is used function, a series of problem such as attractive in appearance.
Greatly across the floor structure of encorbelmenting as adopted girder system, have following problem: stressed complexity; The impact building is used function; The impact building is attractive in appearance.As adopt prestressed inclined stay cable, have following problem: the tension force of single rope is limited; Structure is partially gentle; The node area complexity; Exist the multiple tracks working procedure.As adopt shaped steel as diagonal member, and have following problem: steel strength is low, and cross section is large; Sheet material is thicker, the welding difficulty, and residual stress is larger; Many rod members discontinuity, be difficult to regulate; The node area complexity.
The utility model content
The utility model is by the problems referred to above that adopted major diameter high-strength steel bar device solves in greatly across the floor structure of encorbelmenting.Rod iron uses more usually in lightweight steel roofing and support system, but in greatly across the floor structure of encorbelmenting, use few, utilization along with Materials with High Strength, the occasion that rod iron uses is more and more, especially major diameter high-strength steel bar, by custom-designed supporting node, form major diameter high-strength steel bar oblique drawing device.
Concrete technical scheme is: be used in large across the oblique drawing device in the floor structure of encorbelmenting, comprising non-part and the multilayer part of encorbelmenting of encorbelmenting across the floor structure of encorbelmenting greatly, one oblique drawing device is arranged on described multilayer and encorbelments partly and described non-encorbelmenting between part, it is the rod iron that is greater than 150mm that described oblique drawing device adopts diameter, the tension grade of described rod iron is more than or equal to the Q650 level, described rod iron is the segmented combining structure, comprise the first rod iron, the second rod iron and the 3rd rod iron, be provided with the length adjustment node between described the first rod iron and the second rod iron, be provided with connected node between described the second rod iron and the 3rd rod iron.
Preferably, the diameter of described rod iron is 200mm.
The top of described the first rod iron is top node, and the tail end of described the 3rd rod iron is bottom node, and above-mentioned two nodes all adopt pin joint.
Further, the connected node between the length adjustment node between described the first rod iron and the second rod iron, described the second rod iron and the 3rd rod iron all adopts the sleeve mechanical connection.
The beneficial effect of the utility model device and job practices thereof:
A, according to structure feature, adopt major diameter high-strength steel bar device, in large span centre section relevant position or the end column place of encorbelmenting, provide elastic support, load reaches column by the flooring roofing, then reaches the oblique pull rod iron, stressed clear and definite.
B, rod iron is applied to certain prestressing force, can regulate the amount of deflection of floor structure.
Due to the rod iron overlength, be divided into three sections in c, construction, the length of by rod iron adjustment node, connected node, regulating rod iron, eliminate alignment error and guarantee that many bodies of rod are stressed evenly.
The accompanying drawing explanation
Fig. 1 is that the utility model is greatly across the overall installation structural representation of the floor structure oblique drawing device of encorbelmenting;
Wherein 1, the non-part of encorbelmenting; 2, the part column of encorbelmenting; 3, temporary supporting; 4, the first rod iron; 5, rod iron length adjustment node; 6, rod iron connected node; 7, the 3rd rod iron; 8, the first rod iron top pin joint; 9, the 3rd rod iron tail end pin joint; 10, the second rod iron.
The specific embodiment
The utility model is used in Suning by major diameter high-strength steel bar device and easily purchases in general headquarters' project (A district), encorbelments greatly in three layers of this project ends, and the maximum of encorbelmenting reaches 18.7m.Use function and requirement attractive in appearance according to building, can not adopt girder system, by with prestressed inclined stay cable, shaped steel diagonal member scheme comparison after, finally adopt major diameter high-strength steel bar device
As shown in Figure 1, comprising non-part and the multilayer part of encorbelmenting of encorbelmenting across the floor structure of encorbelmenting greatly, one oblique drawing device is arranged on described multilayer and encorbelments partly and described non-encorbelmenting between part, it is the rod iron that is greater than 150mm that described oblique drawing device adopts diameter, the tension grade of described rod iron is more than or equal to the Q650 level, described rod iron is the segmented combining structure, comprise the first rod iron, the second rod iron and the 3rd rod iron, be provided with the length adjustment node between described the first rod iron and the second rod iron, between described the second rod iron and the 3rd rod iron, be provided with connected node.
Preferably, the diameter of described rod iron is 200mm.
The top of described the first rod iron is top node, and the tail end of described the 3rd rod iron is bottom node, and above-mentioned two nodes all adopt pin joint.
Further, the connected node between the length adjustment node between described the first rod iron and the second rod iron, described the second rod iron and the 3rd rod iron all adopts the sleeve mechanical connection.
Use the job practices of described oblique drawing device, comprise following construction sequence:
The first step, the non-part of encorbelmenting of structure bind;
Second step, establish temporary supporting, encorbelment part girder steel, steel column are installed;
The 3rd step, structure arch camber, initially install rod iron;
The 4th step, the successively floor of constructing, and the length of regulating rod iron by the rod iron adjustment node;
The 5th step, remove temporary supporting.
In the 3rd construction sequence, the node layer of wearing of described rod iron does not come in contact with floor, makes the barred body of rod iron in the axial tension state.
The beneficial effect of the utility model device and job practices thereof:
The beneficial effect of the utility model device and job practices thereof:
A, according to structure feature, adopt major diameter high-strength steel bar device, in large span centre section relevant position, (or the end column place of encorbelmenting), provide elastic support, load reaches column by flooring (roofing), then reaches the oblique pull rod iron, stressed clearly.
B, rod iron is applied to certain prestressing force, can regulate the amount of deflection of floor structure.
C, the construction in due to the rod iron overlength, be divided into three sections, the length of by rod iron adjustment node, connected node, regulating rod iron, eliminate alignment error and guarantee that many bodies of rod are stressed evenly, described rod iron adjustment node and connected node are all by the sleeve mechanical connection, and convenient the installation and construction, avoid Site Welding, can apply certain prestressing force, the distortion of adjustment structure simultaneously.
Claims (4)
1. be used in large across the oblique drawing device in the floor structure of encorbelmenting, comprising non-part and the multilayer part of encorbelmenting of encorbelmenting across the floor structure of encorbelmenting greatly, one oblique drawing device is arranged on described multilayer and encorbelments partly and described non-encorbelmenting between part, it is characterized in that, it is the rod iron that is greater than 150mm that described oblique drawing device adopts diameter, the tension grade of described rod iron is more than or equal to the Q650 level, described rod iron is the segmented combining structure, comprise the first rod iron, the second rod iron and the 3rd rod iron, be provided with the length adjustment node between described the first rod iron and the second rod iron, be provided with connected node between described the second rod iron and the 3rd rod iron.
2. according to claim 1ly be used in greatly across the oblique drawing device in the floor structure of encorbelmenting, it is characterized in that, the diameter of described rod iron is 200mm.
3. according to claim 1ly be used in greatly across the oblique drawing device in the floor structure of encorbelmenting, it is characterized in that, the top of described the first rod iron is top node, and the tail end of described the 3rd rod iron is bottom node, and above-mentioned two nodes all adopt pin joint.
According to claim 1 be used in large across the oblique drawing device in the floor structure of encorbelmenting, it is characterized in that, the connected node between the length adjustment node between described the first rod iron and the second rod iron, described the second rod iron and the 3rd rod iron all adopts the sleeve mechanical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203482952U CN203361471U (en) | 2013-06-18 | 2013-06-18 | Cable-stay device applied to large-span cantilever floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203482952U CN203361471U (en) | 2013-06-18 | 2013-06-18 | Cable-stay device applied to large-span cantilever floor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203361471U true CN203361471U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203482952U Expired - Lifetime CN203361471U (en) | 2013-06-18 | 2013-06-18 | Cable-stay device applied to large-span cantilever floor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203361471U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190652A (en) * | 2017-06-05 | 2017-09-22 | 中建三局集团有限公司 | One kind collection bundled tube intersects long cantilever class stayed-cable bridge structure system and construction method |
| CN113668688A (en) * | 2021-07-09 | 2021-11-19 | 中建一局集团建设发展有限公司 | Three-layer overhanging steel structure with quick construction and land saving and construction method thereof |
| CN115928883A (en) * | 2022-11-29 | 2023-04-07 | 北京城建六建设集团有限公司 | Structure and construction method for preventing displacement of continuous overhanging layer of building |
-
2013
- 2013-06-18 CN CN2013203482952U patent/CN203361471U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190652A (en) * | 2017-06-05 | 2017-09-22 | 中建三局集团有限公司 | One kind collection bundled tube intersects long cantilever class stayed-cable bridge structure system and construction method |
| CN113668688A (en) * | 2021-07-09 | 2021-11-19 | 中建一局集团建设发展有限公司 | Three-layer overhanging steel structure with quick construction and land saving and construction method thereof |
| CN113668688B (en) * | 2021-07-09 | 2022-07-12 | 中建一局集团建设发展有限公司 | Three-layer overhanging steel structure with quick construction and land saving and construction method thereof |
| CN115928883A (en) * | 2022-11-29 | 2023-04-07 | 北京城建六建设集团有限公司 | Structure and construction method for preventing displacement of continuous overhanging layer of building |
| CN115928883B (en) * | 2022-11-29 | 2024-02-13 | 北京城建六建设集团有限公司 | Structure structure for preventing displacement of continuous overhanging layer of building and construction method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
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| CX01 | Expiry of patent term |