CN202347525U - Prestress bow-shaped steel circuit purlin - Google Patents
Prestress bow-shaped steel circuit purlin Download PDFInfo
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- CN202347525U CN202347525U CN 201120450004 CN201120450004U CN202347525U CN 202347525 U CN202347525 U CN 202347525U CN 201120450004 CN201120450004 CN 201120450004 CN 201120450004 U CN201120450004 U CN 201120450004U CN 202347525 U CN202347525 U CN 202347525U
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- shaped steel
- steel
- purlin
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- musical instrument
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Abstract
The utility model relates to the technical field of a steel structure, in particular to a prestress bow-shaped steel circuit purlin which is used in a large-scale steel structure beam, a metro pit or a large deep pit, and aims to solve the problems of short horizontal distance support, insufficient upper and lower bending strength of a steel circuit purlin in a containment support. The prestress bow-shaped steel circuit purlin comprises a bar-shaped steel circuit purlin, and is characterized in that an intermediate column vertical to the bar-shaped steel circuit purlin is arranged under the middle part of the bar-shaped steel circuit purlin; a plurality of lateral columns with gradually reduced length are respectively arranged on two ends of the bar-shaped steel circuit purlin by taking the intermediate column as a center; bottom ends of the intermediate column and all lateral columns are provided with steel cable grooves, and steel strings pass through the steel cable grooves; and a steel string fixing device is respectively arranged on the outer side of the shortest two columns of the lateral columns. According to the prestress bow-shaped steel circuit purlin, the excavation and construction space in the pit can be increased, and the number and workload of steel supports are reduced.
Description
Technical field
The utility model relates to the steel work technical field, relates in particular to a kind of prestressing force bow shaped steel that is used for large-scale steel structure beam, subway foundation pit or large-scale deep foundation ditch and encloses purlin.
Background technology
Steel encloses the main member in the supporting of going along with sb. to guard him that purlin is steel structure girder, subway foundation pit or deep foundation ditch, and the structure that steel encloses purlin should be fit to safety specifications, is fit to again make; It is numerous in variety that existing steel encloses purlin, and form of structure differs, and encloses purlin like patent announcement number for the steel that supports construction in a kind of subway engineering of CN201554026U people; Its purpose is to solve H shaped steel is carried out perforate, reduces the shortcoming of H shaped steel ability to bear, and is whole rectangular; It is I-shaped that section is, and the riser of I-shaped is a sealed hollow, and the riser outside fixed interval of I-shaped has some webs; I-shaped steel encloses purlin inside and has sealed hollow; Reduce rigidity, improve intensity, adopt i iron or channel-section steel or steel plate to be spliced.To from from top to down pressure flexural strength shortcoming, horizontal range was little during pattern foundation pit supporting structure when this structure was installed.And for example the application number submitted of the applicant is that a kind of bridge arch shaped steel of CN2011203021764 encloses purlin; It is characterized in that the below that the Two bors d's oeuveres steel encloses purlin is provided with an arch tube; Arch tube is the reclinate arc in two ends; The two ends of arch tube are connected with the hypomere of a Three kinds of hors d'oeuvres pier stud respectively; The upper end of Three kinds of hors d'oeuvres pier stud and Two bors d's oeuveres steel enclose that purlin is vertical and be connected the below that the Two bors d's oeuveres steel encloses one section of purlin end, and arch tube and Two bors d's oeuveres steel enclose and be provided with some groups of bridge opening junction plates in the neutral gear between the purlin, and this structure fabrication is comparatively more complicated than this application.
Summary of the invention
The objective of the invention is for solve existing subway foundation ditch or large-scale deep foundation ditch go along with sb. to guard him steel in the supporting enclose the purlin horizontal range prop up shield a shortcoming or fault, the not enough problem of flexural strength up and down; Provide a kind of prestressing force bow shaped steel of reasonable in design to enclose purlin, adopt with bar shaped steel and enclose the purlin post to which the strings of a musical instrument are attached vertically downward, and constitute the arc bottom; Be in the steel hinge rope of arcuation with installation; Two ends have high strength, large span characteristics with fastening devices tension steel hinge rope, have increased the excavation and construction space in the foundation ditch greatly.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: a kind of prestressing force bow shaped steel encloses purlin; Comprise that bar shaped steel encloses purlin; It is characterized in that described shaped steel encloses purlin middle part below and is provided with bar shaped steel and encloses the vertical middle post to which the strings of a musical instrument are attached of purlin; With the middle post to which the strings of a musical instrument are attached is that middle mind-set stripe shape steel encloses the purlin two ends and is respectively equipped with the limit post to which the strings of a musical instrument are attached that some length reduce gradually; The middle post to which the strings of a musical instrument are attached is provided with cable trough with all post to which the strings of a musical instrument are attached bottoms, limit, is installed with the steel strand cable in the cable trough, and the shortest two outsides in the post to which the strings of a musical instrument are attached of limit are respectively equipped with steel strand cable fastening devices.Bar shaped steel encloses purlin, the middle post to which the strings of a musical instrument are attached and the limit post to which the strings of a musical instrument are attached and constitutes middle high, the low bow-shaped structural in two ends jointly; The limit post to which the strings of a musical instrument are attached encloses the purlin length overall by steel and selects the quantity configuration; When steel encloses the effect that purlin receives the foundation ditch uniformly distributed load; Steel encloses the power that the purlin interlude receives, and is delivered to the two ends that steel encloses purlin through the middle post to which the strings of a musical instrument are attached by the steel strand cable.And steel encloses the two ends of purlin and props up through the steel supporting form, and a lot of roads steel in the middle of so just can saving supports, and the support interval that steel supports is also widened greatly.Because the steel strand cable applied certain prestressing force, have certain flexible force transmission on the one hand, on the other hand, when steel encloses the stressed variation of purlin when reducing, steel strand capacity discharges certain stress, to reach the steady relatively of supporting.This device is fit to adopt heavy steel to support.
As preferably, described steel strand cable fastening devices comprises with bar shaped steel encloses the vertical cable wire cover reinforced seat of purlin, and the bottom of cable wire cover reinforced seat is provided with the cable wire cover.Cable wire cover reinforced seat mainly is used for fixing the cable wire cover, and when practical application, this reinforced seat and steel enclose the position, right angle that purlin is connected can add the triangle reinforcing rib.
As preferably, the curved setting of described steel strand cable, steel strand cable curved bottom is the rope groove, the rope groove in the cable trough that the middle post to which the strings of a musical instrument are attached and all post to which the strings of a musical instrument are attached bottoms, limit are provided with is along the arc setting at steel strand cable place.The low arcuate structure in middle high both sides makes the middle part on the steel strand cable receive power effectively and transmits to two ends, and cable trough has been avoided the turnover of steel strand cable angle of arrival property along the arc setting of steel strand cable.
As preferably, described cable wire is arranged with cone-shaped inner hole, is provided with sleeve in the endoporus of cable wire cover, and the endoporus of sleeve cooperates with steel strand cable diameter, and the profile of sleeve is and cable wire overlaps the identical taper of cone-shaped inner hole tail end position tapering.Cable wire cover and sleeve are a kind of modes of steel strand cable of being strained and fixed.
As preferably, the endoporus of described cable wire cover is along the arc setting at steel strand cable place.The endoporus of cable wire cover carries over the arc extended line at steel strand cable two ends.
As preferably, described cable trough is a U font structure, and the radian of the bottom circular arc of U font structure cooperates with the external diameter radian of steel strand cable (8).One end of cable wire cover is open, though U font structural openings is down, and tension or have loosening steel strand cable can in the U groove, do trace slightly to move and can not break away from U-lag.
As preferably, the cable wire cover reinforced seat in the described steel strand cable fastening devices is welded as a whole with the minor face post to which the strings of a musical instrument are attached.Steel strand cable fastening devices is positioned at the outside of the minor face post to which the strings of a musical instrument are attached, and both not only reduce integrally-built volume for one at weldering, have also strengthened the pulling force that steel strand cable fastening devices reality can be born.
As preferably; Described shaped steel encloses purlin and comprises two i iron that are arranged in parallel; Be provided with the some middle reinforcing ribs that are parallel to each other between two i iron; The outside of two i iron is respectively equipped with the some outer reinforcing ribs that are parallel to each other, the auxilliary respectively base plate of establishing in the upper and lower plane of two i iron.This device is fit to heavy steel and supports class, and bar shaped steel encloses purlin and adopts two i iron knots.
As preferably, described being positioned on the outer reinforcing rib that bar shaped steel encloses the purlin two-end part is respectively equipped with the hanger hole.The usefulness of lifting by crane when the hanger hole is used for work such as transportation, installation, dismounting.
As preferably, described is that middle mind-set stripe shape steel encloses the limit post to which the strings of a musical instrument are attached that the purlin two ends are provided with middle post to which the strings of a musical instrument are attached symmetric arrangement with the middle post to which the strings of a musical instrument are attached, and the arc of steel strand cable is a section of circular arc.The symmetrically arranged limit post to which the strings of a musical instrument are attached is an even number spare, and two of the symmetry post to which the strings of a musical instrument are attached height of aiding the border areas equates, makes the steel strand cable stressed evenly, to reach the balance of total.
The beneficial effect of the utility model is: increased shoveling and construction space in the foundation ditch greatly, reduced supported amount and workload that steel supports simultaneously.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the A-A sectional structure sketch map of the utility model Fig. 1.
Fig. 3 is the C-C sectional structure sketch map of the utility model Fig. 1.
Fig. 4 is the left TV structure sketch map of the utility model Fig. 1.
Fig. 5 is the B-B sectional structure sketch map of the utility model Fig. 1.
Fig. 6 is a kind of cable trough structural representation of the utility model.
Among the figure: 1. a shaped steel encloses purlin, 2. cable wire cover reinforced seat, 3. cable wire cover, the 4. end post to which the strings of a musical instrument are attached, 5. second post to which the strings of a musical instrument are attached, 6. in the middle of the post to which the strings of a musical instrument are attached, 7. cable trough, 8. steel strand cable, 9. outer reinforcing rib, 10. i iron, 11. centre reinforcing ribs, 12. base plates.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Referring to Fig. 1, Fig. 2; A kind of prestressing force bow shaped steel of present embodiment encloses purlin; If the bar shaped steel that level is one 12 meters long encloses purlin 1; Bar shaped steel encloses 12 meters long i iron 10 that purlin 1 comprises two parallel settings, along middle reinforcing rib 11 of the 1.5 meters welding in every interval, middle part of two i iron 10 length directions.Outer reinforcing rib 9 of the 1 meter welding in every interval, the outside of two i iron 10; Totally 13; Be positioned on the outer reinforcing rib 9 that bar shaped steel encloses purlin 1 two-end part and be respectively equipped with the hanger hole, like Fig. 3, shown in Figure 4, the auxilliary respectively base plate 12 of establishing on the upper and lower plane of two i iron 10.
Bar shaped steel enclose purlin 1 middle part below establish one and enclose the vertical middle post to which the strings of a musical instrument are attached 6 of purlin 1 with bar shaped steel, enclose purlin 1 two ends 4 the limit posts to which the strings of a musical instrument are attached that are symmetrically distributed with the middle post to which the strings of a musical instrument are attached 6 for middle mind-set stripe shape steel, the middle post to which the strings of a musical instrument are attached 6 is highly the highest; Both sides outwards shorten successively; The the shortest limit post to which the strings of a musical instrument are attached of end positions is the end post to which the strings of a musical instrument are attached 4, and between the end post to which the strings of a musical instrument are attached 4 and the middle post to which the strings of a musical instrument are attached 6 is second post to which the strings of a musical instrument are attached 5, and the middle post to which the strings of a musical instrument are attached 6, second post to which the strings of a musical instrument are attached 5, the end post to which the strings of a musical instrument are attached 4 bottoms are respectively equipped with cable trough 7; Cable trough 7 is a U font structure; As shown in Figure 6, be installed with the steel strand cable 8 of circular shape in the cable trough 7, the rope groove in the cable trough 7 is along the arc setting of steel strand cable 8.
The outside of the end post to which the strings of a musical instrument are attached 4 is provided with steel strand cable fastening devices; Cable wire cover 3 is provided with cone-shaped inner hole; Sleeve is housed in the endoporus; Sleeve is to overlap the identical bullet of 3 cone-shaped inner hole tail end position taperings with cable wire, and the endoporus of sleeve cooperates with steel strand cable 8 diametric clearance, and the endoporus of cable wire cover 3 is towards the arcuate directions along steel strand cable 8 places.
As shown in Figure 5, the end post to which the strings of a musical instrument are attached 4 is integrally welded with cable wire cover reinforced seat 2, and the middle post to which the strings of a musical instrument are attached, the limit post to which the strings of a musical instrument are attached adopt two parallel i iron to add the junction plate of the lower plane of burn-oning and the middle stiffener between the i iron forms.
During work; Because this device prestressing force bow shaped steel encloses the effect that purlin receives the foundation ditch even load; Prestressing force bow shaped steel encloses power that the purlin middle part receives and can transmit to two ends through steel strand cable 8 through the middle post to which the strings of a musical instrument are attached 6, second post to which the strings of a musical instrument are attached 5, the end post to which the strings of a musical instrument are attached 4, is supported by the steel at two ends and bears decomposition.
The foregoing description is the explanation to the utility model, is not the qualification to the utility model, any protection domain that structure after the simple transformation of the utility model, technology is all belonged to the utility model.
Claims (10)
1. a prestressing force bow shaped steel encloses purlin; Comprise that bar shaped steel encloses purlin (1); It is characterized in that described shaped steel encloses purlin (1) middle part below and is provided with bar shaped steel and encloses the vertical middle post to which the strings of a musical instrument are attached (6) of purlin (1); For enclosing purlin (1) two ends, middle mind-set stripe shape steel is respectively equipped with the limit post to which the strings of a musical instrument are attached that some length reduce gradually with the middle post to which the strings of a musical instrument are attached (6); The middle post to which the strings of a musical instrument are attached (6) and all post to which the strings of a musical instrument are attached bottoms, limit are provided with cable trough (7), are installed with steel strand cable (8) in the cable trough (7), and the shortest two outsides in the post to which the strings of a musical instrument are attached of limit are respectively equipped with steel strand cable fastening devices.
2. prestressing force bow shaped steel according to claim 1 encloses purlin, it is characterized in that described steel strand cable fastening devices comprises that enclosing the vertical cable wire of purlin (1) with bar shaped steel overlaps reinforced seat (2), and the bottom of cable wire cover reinforced seat (2) is provided with cable wire cover (3).
3. prestressing force bow shaped steel according to claim 1 and 2 encloses purlin; It is characterized in that the curved setting of described steel strand cable (8); Steel strand cable (8) curved bottom is the rope groove, and the rope groove in the cable trough (7) that the middle post to which the strings of a musical instrument are attached (6) and all post to which the strings of a musical instrument are attached bottoms, limit are provided with is along the arc setting at steel strand cable (8) place.
4. prestressing force bow shaped steel according to claim 2 encloses purlin; It is characterized in that described cable wire cover (3) is provided with cone-shaped inner hole; Be provided with sleeve in the endoporus of cable wire cover (3); The endoporus of sleeve cooperates with steel strand cable (8) diameter, and the profile of sleeve is and the identical taper of cable wire cover (3) cone-shaped inner hole tail end position tapering.
5. prestressing force bow shaped steel according to claim 4 encloses purlin, it is characterized in that the arc setting of the endoporus of described cable wire cover (3) along steel strand cable (8) place.
6. prestressing force bow shaped steel according to claim 1 and 2 encloses purlin, it is characterized in that described cable trough (7) is U font structure, and the radian of the bottom circular arc of U font structure cooperates with the external diameter radian of steel strand cable (8).
7. prestressing force according to claim 2 bow shaped steel encloses purlin, it is characterized in that the cable wire cover reinforced seat (2) in the described steel strand cable fastening devices is welded as a whole with the minor face post to which the strings of a musical instrument are attached.
8. prestressing force bow shaped steel according to claim 1 and 2 encloses purlin; It is characterized in that described shaped steel encloses purlin (1) and comprises two i iron that are arranged in parallel (10); Be provided with the some middle reinforcing ribs (11) that are parallel to each other between two i iron (10); The outside of two i iron (10) is respectively equipped with the some outer reinforcing ribs (9) that are parallel to each other, the auxilliary respectively base plate (12) of establishing in the upper and lower plane of two i iron (10).
9. prestressing force according to claim 8 bow shaped steel encloses purlin, it is characterized in that being positioned on the outer reinforcing rib (9) that bar shaped steel encloses purlin (1) two-end part being respectively equipped with the hanger hole.
10. prestressing force bow shaped steel according to claim 1 and 2 encloses purlin; It is characterized in that describedly enclosing the limit post to which the strings of a musical instrument are attached that purlin (1) two ends are provided with the middle post to which the strings of a musical instrument are attached (6) symmetric arrangement with the middle post to which the strings of a musical instrument are attached (6) for middle mind-set stripe shape steel, the arc of steel strand cable (8) is a section of circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120450004 CN202347525U (en) | 2011-11-15 | 2011-11-15 | Prestress bow-shaped steel circuit purlin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120450004 CN202347525U (en) | 2011-11-15 | 2011-11-15 | Prestress bow-shaped steel circuit purlin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202347525U true CN202347525U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120450004 Expired - Fee Related CN202347525U (en) | 2011-11-15 | 2011-11-15 | Prestress bow-shaped steel circuit purlin |
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| Country | Link |
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| CN (1) | CN202347525U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839675A (en) * | 2012-09-25 | 2012-12-26 | 上海新强劲工程技术有限公司 | Long-span pre-stress fish belly sill for foundation pit support and mounting method thereof |
| CN103161169A (en) * | 2013-03-13 | 2013-06-19 | 上海强劲地基工程股份有限公司 | Prestressed girder for foundation pit supporting |
| CN105256809A (en) * | 2015-09-25 | 2016-01-20 | 江苏东合南岩土科技股份有限公司 | Prestressed H-type steel supporting structure and construction method thereof |
| CN108560563A (en) * | 2018-05-24 | 2018-09-21 | 东南大学 | A kind of deep foundation pit support prestressing force fish belly sill that drag-line can be locked |
| CN108677964A (en) * | 2018-05-24 | 2018-10-19 | 东南大学 | A kind of prestressing force fish belly sill of the deep foundation pit support with anti-rotation rope |
-
2011
- 2011-11-15 CN CN 201120450004 patent/CN202347525U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839675A (en) * | 2012-09-25 | 2012-12-26 | 上海新强劲工程技术有限公司 | Long-span pre-stress fish belly sill for foundation pit support and mounting method thereof |
| CN102839675B (en) * | 2012-09-25 | 2014-12-24 | 上海新强劲工程技术有限公司 | Method of long-span pre-stress fish belly sill for foundation pit support |
| CN103161169A (en) * | 2013-03-13 | 2013-06-19 | 上海强劲地基工程股份有限公司 | Prestressed girder for foundation pit supporting |
| CN103161169B (en) * | 2013-03-13 | 2015-06-17 | 上海强劲地基工程股份有限公司 | Prestressed girder for foundation pit supporting |
| CN105256809A (en) * | 2015-09-25 | 2016-01-20 | 江苏东合南岩土科技股份有限公司 | Prestressed H-type steel supporting structure and construction method thereof |
| CN108560563A (en) * | 2018-05-24 | 2018-09-21 | 东南大学 | A kind of deep foundation pit support prestressing force fish belly sill that drag-line can be locked |
| CN108677964A (en) * | 2018-05-24 | 2018-10-19 | 东南大学 | A kind of prestressing force fish belly sill of the deep foundation pit support with anti-rotation rope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20161115 |