CN217000159U - Prestressed concrete space suspension structure system - Google Patents
Prestressed concrete space suspension structure system Download PDFInfo
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- CN217000159U CN217000159U CN202122764624.9U CN202122764624U CN217000159U CN 217000159 U CN217000159 U CN 217000159U CN 202122764624 U CN202122764624 U CN 202122764624U CN 217000159 U CN217000159 U CN 217000159U
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- 239000000725 suspension Substances 0.000 title claims abstract description 40
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 19
- 238000004873 anchoring Methods 0.000 claims abstract description 9
- 239000004567 concrete Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a prestressed concrete space suspension structure system which comprises a frame part and an overhanging part, wherein one end of the overhanging part is connected with the frame part, the frame part is used as a support, the other end of the overhanging part is used for suspension, the overhanging part comprises a prestressed overhanging beam, a non-prestressed overhanging beam and a prestressed hanging column, each non-prestressed overhanging beam is correspondingly hung below one prestressed overhanging beam through one prestressed hanging column, a first prestressed cable is arranged in the prestressed overhanging beam, the anchoring end of the first prestressed cable is arranged at the frame part, the tensioning end is arranged at the overhanging end of the prestressed overhanging beam, a second prestressed cable is arranged in the prestressed hanging column, the anchoring end of the second prestressed cable is arranged at the column top of the prestressed hanging column, and the tensioning end is arranged at the column bottom. Compared with the prior art, the utility model has the advantages of flexibly adapting to the limit requirements of various beam heights and the like.
Description
Technical Field
The utility model belongs to the technical field of a large cantilever concrete structure, and particularly relates to a prestressed concrete space suspension structure system.
Background
In the existing building, the overhanging model with larger span is usually needed for building model beauty. Because of the requirement of building effect, the steel structure can not be manufactured but only the concrete structure can be manufactured; compared with a steel structure, the concrete structure enables the height of the cantilever beam to be larger and heavier, and the cantilever beam cannot be made to be light and handy like the steel structure. For a large cantilever structure, the displacement of the cantilever end is large under the self-weight action of the structure, and the vertical load and the vertical earthquake action are control elements of the structure. For a building type with a large overhang, in order to meet the safety of a structure, the height of the structure needs to be increased, the section of a component is increased, the self weight of the structure is increased, the vertical load is increased due to the increase of the self weight of the structure, the height of the structure and the section of the component need to be further increased, a vicious circle is formed, and the effect of the building is difficult to achieve.
In general buildings, the height section of a beam is usually limited, and particularly, under the condition that the section of a large-span concrete cantilever beam is much larger than the height of a common beam, how to adapt to the building requirements to make a structural system with larger cantilever and smaller beam height is a technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a prestressed concrete space suspension structure system which is suitable for a multi-layer concrete suspension structure, is a structure system with larger suspension and smaller suspension height under the conditions that the limitation on the section of a bottom cantilever beam is high and the limitation on the section of an upper cantilever beam is low, and flexibly meets the limitation requirements on various beam heights.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a prestressed concrete space suspends structure system in midair, includes frame portion and the portion of encorbelmenting, the portion one end of encorbelmenting with the frame portion is connected to frame portion is for supporting, and the other end suspends in midair, the portion of encorbelmenting includes prestressing force cantilever beam, non-prestressing force cantilever beam and prestressing force davit, each non-prestressing force cantilever beam corresponds through a prestressing force davit and hangs in a prestressing force cantilever beam below, be provided with first prestressed cable in the prestressing force cantilever beam, the anchor end of this first prestressed cable is located the frame portion, and the end of straining is located the end of encorbelmenting of prestressing force cantilever beam, be provided with second prestressed cable in the prestressing force davit, the anchor end of this second prestressed cable is located the capital of prestressing force davit, and the end of straining is located the column bottom.
Further, the first prestressed cables are curve linear prestressed cables, and the first prestressed cables in the prestressed cantilever beams are different in line type.
Further, the second prestressed cable is a linear prestressed cable.
Further, the linear pre-stressed cable is positioned at the center of the column section of the pre-stressed suspension column.
Further, the prestress cantilever beam is a variable-section cantilever beam.
Further, the non-prestressed cantilever beam is an equal-section cantilever beam.
Furthermore, the prestressed cantilever beam, the non-prestressed cantilever beam and the prestressed hanging pillar are integrally cast to form a whole.
Furthermore, the first prestressed cable is divided into two cables which are symmetrical with the central line of the prestressed cantilever beam at the tensioning end.
Further, the frame part comprises a frame column, a first prestressed frame beam and a second prestressed frame beam which are connected with each other to form a frame, the first prestressed frame beam is perpendicular to the prestressed cantilever beam, the second prestressed frame beam is parallel to the prestressed cantilever beam, a third prestressed cable is arranged in the first prestressed frame beam, and the first prestressed cable forms an anchoring end on the frame column.
Further, the third prestressed cable is a parabolic prestressed cable with an upward opening.
Compared with the prior art, the utility model has the following beneficial effects:
1. the construction requirement of a large-span cantilever structure for limiting the beam height can be met by arranging the prestressed cantilever beam comprising the prestressed cable and the prestressed suspension columns.
2. The utility model can flexibly distribute the stress of the upper cantilever beam and the lower cantilever beam by controlling the tension of the prestressed cable in the prestressed suspension post, thereby flexibly adapting to the limit requirements of various beam heights.
3. The prestressed frame beam provides a support for the prestressed cantilever beam and can provide a solution for a large-space cantilever system of the extraction column.
4. The prestressed suspension post is also internally provided with a prestressed cable, and the stress of the upper and lower cantilever beams can be flexibly distributed by controlling the tension control stress of the prestressed cable in the prestressed suspension post, so that the prestressed suspension post can flexibly adapt to the height limit requirements of various large-span cantilever beams, and can play a role of a second defense line.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present invention;
FIG. 2 is a schematic top view of an upper layer structure in an embodiment of the present invention;
FIG. 3 is a schematic top view of an underlying structure in an embodiment of the utility model;
FIG. 4 is a schematic cross-sectional view of a first prestressed frame beam construction of the present invention;
in the figure: 1. the prestressed cantilever beam comprises a first prestressed cantilever beam, 2 a second prestressed cantilever beam, 3 a third prestressed cantilever beam, 4 a prestressed suspension post, 5 a first non-prestressed cantilever beam, 6 a second non-prestressed cantilever beam, 7 a third non-prestressed cantilever beam, 8 a first prestressed frame beam, 9 a curve linear prestressed cable, 10 a first frame column, 11 a second frame column, 12 a second prestressed frame beam, 13 a linear prestressed cable and 14 a parabolic prestressed cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The embodiment provides a prestressed concrete space suspension structure system, which comprises a frame part and an overhanging part, wherein one end of the overhanging part is connected with the frame part, the frame part is used as a support, the other end of the overhanging part is used for suspension, the overhanging part comprises a prestressed overhanging beam, a non-prestressed overhanging beam and a prestressed hanging post, each non-prestressed overhanging beam is correspondingly hung below one prestressed overhanging beam through one prestressed hanging post, a first prestressed cable is arranged in the prestressed overhanging beam, the end part of the prestressed overhanging beam provides an upward inverted arch force, the anchoring end of the first prestressed cable is arranged at the frame part, the tensioning end is arranged at the overhanging end of the prestressed overhanging beam, a second prestressed cable is arranged in the prestressed hanging post, the upward tension is provided for the overhanging end of the non-prestressed beam, the tension is controlled by controlling the tension of the second cable, the magnitude of a pair of tension applied to the end parts of the upper and lower overhanging beams can be artificially controlled, the anchoring end of the second prestressed cable is positioned at the top of the prestressed hanging column, and the tensioning end is positioned at the bottom of the column. The prestressed cantilever beam and the prestressed suspension post which contain the prestressed cables are arranged, the stress of the prestressed cantilever beam is distributed flexibly from top to bottom by the tension control stress of the prestressed cables, and therefore the prestressed concrete space stress structure system is flexibly suitable for the height limit requirement of various large-span cantilever beam structures, can be provided for a large-span concrete structure, can be used for the large-span concrete cantilever structure system, and is suitable for the condition that the cross section height of the concrete cantilever beam is limited due to the fact that concrete needs to be subjected to cantilever modeling and the cantilever span is large in the building function.
The prestressed concrete spatial suspension structure provided in this embodiment is a two-layer structure system, the restriction requirement on the cross section of the cantilever beam on the next layer is high, and the restriction requirement on the cross section of the cantilever beam on the previous layer is low, and the specific arrangement mode of the structure system of the present invention is described by taking a section of a unit structure that can be continued of the structure system as an example.
As shown in fig. 1 to 3, the frame portion of the unit structure includes first frame columns 10, second frame columns 11, first prestressed frame beams 8, and second prestressed frame beams 12, the first frame columns 10 and the second frame columns 11 are arranged in a front-rear row, the first frame columns 10 are two, the second frame columns 11 are three, and are vertically fixed on the ground, the first prestressed frame beams 8 are bridged between the two first frame columns 10, that is, the first prestressed frame beams 8 are supported across the middle frameless column, and the second prestressed frame beams 12 are bridged between the adjacent first frame columns 10 and the second frame columns 11. Correspondingly, the overhanging part of the unit structure comprises a first prestressed overhanging beam 1, a second prestressed overhanging beam 2, a third prestressed overhanging beam 3, a first non-prestressed overhanging beam 5, a second non-prestressed overhanging beam 6, a third non-prestressed overhanging beam 7 and prestressed suspension posts 4, wherein the first non-prestressed overhanging beam 5, the second non-prestressed overhanging beam 6 and the third non-prestressed overhanging beam 7 are respectively hung at the end parts of the first prestressed overhanging beam 1, the second prestressed overhanging beam 2 and the third prestressed overhanging beam 3 through the prestressed suspension posts 4, and the second prestressed overhanging beam 2 takes the first prestressed frame beam 8 as a support. The prestressed cantilever beam, the non-prestressed cantilever beam, the prestressed suspension post, the prestressed frame beam and the frame post are all concrete structural members, and the prestressed cantilever beam, the non-prestressed cantilever beam and the prestressed suspension post are integrally cast to form a whole.
As shown in fig. 2, the first prestressed cantilever beam 1, the second prestressed cantilever beam 2, and the third prestressed cantilever beam 3 are all variable cross-section cantilever beams, and curve linear prestressed cables 9 of different linear types are arranged in the variable cross-section cantilever beams, so as to generate an upward inverted arch at the end of the cantilever beam. Specifically, the curved line type prestressed cables 9 in the first prestressed cantilever beam 1 and the third prestressed cantilever beam 3 extend to span to the second prestressed frame beam 12, the anchoring end is arranged on the left side of the second frame column 11, the tensioning end is arranged on the end parts of the first prestressed cantilever beam 1 and the third prestressed cantilever beam 3, the two prestressed cables which are symmetrical according to the beam center line are divided into the end parts, and the two prestressed cables are anchored on the boundary beams on the two sides of the prestressed suspension column 4. The second prestressed cantilever beam 2 takes the first prestressed frame beam 8 as a support, an upward inverted arch is generated at the end part of the cantilever beam through the curve linear prestressed cable 9, the anchoring end of the curve linear prestressed cable 9 in the second prestressed cantilever beam 2 is arranged at the left side of the second frame column 11, and the tensioning end is arranged at the end part of the second prestressed cantilever beam 2, is divided into two prestressed cables which are symmetrical according to the central line of the beam and is anchored on the side beams at two sides of the prestressed suspension column 4. The first non-prestressed cantilever beam 5, the second non-prestressed cantilever beam 6 and the third non-prestressed cantilever beam 7 are all cantilever beams with equal sections and are not provided with prestressed cables.
As shown in fig. 4, the first prestressed frame girder 8 generates an inverted arch effect by providing the parabolic prestressed cables 14 opened upward to provide an upward supporting force to the second prestressed cantilever girder 2.
The prestressed suspension post 4 is provided with a linear type linear prestressed cable 13 which is positioned at the center of the cross section of the prestressed suspension post, the anchoring end is positioned at the bottom of the post, and the tensioning end is positioned at the top of the post.
When the structure system is used, the prestressed cables arranged in the prestressed cantilever beam and the first prestressed frame beam 8 are simultaneously tensioned firstly, and then the prestressed cables in the prestressed suspension columns 4 are tensioned, wherein the prestressed cables have different linear types in different components, and the tensioning control stress can be different in different components.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a prestressed concrete space suspends structure system in midair, its characterized in that, includes frame portion and the portion of encorbelmenting, the portion of encorbelmenting one end with frame portion connects to frame portion is for supporting, and the other end suspends in midair, the portion of encorbelmenting includes prestressing force cantilever beam, non-prestressing force cantilever beam and prestressing force davit, each non-prestressing force cantilever beam corresponds through a prestressing force davit and hangs in a prestressing force cantilever beam below, be provided with first prestressing force cable in the prestressing force cantilever beam, the anchor end of this first prestressing force cable is located frame portion, and the end of straining is located the end of encorbelmenting of prestressing force cantilever beam, be provided with second prestressing force cable in the prestressing force davit, the anchor end of this second prestressing force cable is located the capital of prestressing force davit, and the end of straining is located the column bottom.
2. The prestressed concrete spatial suspension structure system according to claim 1, wherein said first prestressed cables are curvilinear linear prestressed cables, and the linear shape of said first prestressed cables is different in each of said prestressed cantilever beams.
3. The prestressed concrete spatial suspension structural system according to claim 1, wherein said second prestressed cables are linear prestressed cables.
4. The prestressed concrete spatial suspension structure system according to claim 3, wherein said linear prestressed cables are located at the center of the column section of the prestressed suspension posts.
5. The prestressed concrete spatial suspension structure system of claim 1, wherein said prestressed cantilever beam is a variable cross-section cantilever beam.
6. The prestressed concrete spatial suspension structure system of claim 1, wherein said non-prestressed cantilever beam is an equi-section cantilever beam.
7. The prestressed concrete spatial suspension structure system according to claim 1, wherein said prestressed cantilever beam, non-prestressed cantilever beam and prestressed suspension post are integrally cast into one body.
8. The prestressed concrete spatial suspension structure system according to claim 1, wherein said first prestressed cable is divided into two cables at the tension end, which are symmetrical about the center line of the prestressed cantilever beam.
9. The prestressed concrete spatial suspension structure system according to claim 1, wherein said frame portion comprises a frame post, a first prestressed frame girder and a second prestressed frame girder which are connected to each other to form a frame, said first prestressed frame girder is arranged perpendicular to said prestressed cantilever girder, said second prestressed frame girder is arranged parallel to said prestressed cantilever girder, a third prestressed cable is arranged in said first prestressed frame girder, said first prestressed cable forms an anchoring end on said frame post.
10. The prestressed concrete spatial suspension system according to claim 9, wherein said third prestressed cables are parabolic prestressed cables with an opening facing upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764624.9U CN217000159U (en) | 2021-11-12 | 2021-11-12 | Prestressed concrete space suspension structure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764624.9U CN217000159U (en) | 2021-11-12 | 2021-11-12 | Prestressed concrete space suspension structure system |
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| Publication Number | Publication Date |
|---|---|
| CN217000159U true CN217000159U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122764624.9U Active CN217000159U (en) | 2021-11-12 | 2021-11-12 | Prestressed concrete space suspension structure system |
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|---|---|
| CN (1) | CN217000159U (en) |
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2021
- 2021-11-12 CN CN202122764624.9U patent/CN217000159U/en active Active
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