CN104234307A - Length-adjustable compression strut for self-balanced pre-stressing cable-strut grid structure - Google Patents
Length-adjustable compression strut for self-balanced pre-stressing cable-strut grid structure Download PDFInfo
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- CN104234307A CN104234307A CN201310242239.5A CN201310242239A CN104234307A CN 104234307 A CN104234307 A CN 104234307A CN 201310242239 A CN201310242239 A CN 201310242239A CN 104234307 A CN104234307 A CN 104234307A
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- pipe fitting
- strut
- tubular rod
- rod segments
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Abstract
The invention provides a length-adjustable compression strut for a self-balanced pre-stressing cable-strut grid structure, which relates to the field of space steel structures and aims at solving the problems that the length of a compression strut which is unscrewed from a joint is limited, a joint member is overlarge and the like in the forming of a pre-stressing cable-strut grid structure. The length-adjustable compression strut is technically characterized by consisting of two segments of tubular strut components and a connecting piece, wherein internal threads are arranged on the inner tubular walls of the connected ends of the two segments of tubular strut components; the connecting piece is used for integrally connecting the two segments of tubular strut components by virtue of columnar external threads, and the self-length of the compression strut is controlled by controlling the length of the external threads screwed into the tubular strut components, wherein the external threads are arranged at two ends of the connecting piece. According to the length-adjustable compression strut, the effect of elongating each compression strut component by any length can be achieved, so that high prestress can be provided for the self-balanced pre-stressing cable-strut grid structure; the size of the joint member is greatly reduced, so that the elongating operation of each strut component is rapid and efficient to carry out.
Description
Technical field
The present invention relates to spatial steel structure, particularly relate to a kind of self-balancing type prestressed cable bar network.
Background technology
The spatial steel structure that self-balance prestress rope bar network is made up of flexible cable and rigidity depression bar, different from common network, the structure basic unit body of this structure is a kind of hexahedron be made up of flexible cable and depression bar.The rigidity of structure obtains from the tension force of drag-line.Due to the constructivity of self-balance prestress rope bar network on special, what structural system need adopt balance prestressed cable bar network need set up higher prestressing force in each depression bar and drag-line, therefore there is larger problem in practical in this depression bar method of extending from node component back-out depression bar, be mainly manifested in: structure node component need make particular design, the size being determined node component by the back-out technique of depression bar is comparatively large, and what cause dead load realizes structure formation by the method for extending the indirect stretch-draw flexible cable of compression web member.The method realizing the elongation of self-balance prestress rope bar network depression bar being seen in document at present arranges reverse screw thread at the two ends of depression bar, in advance the screw thread at two ends is screwed in the node component of end, during structure formation, depression bar is screwed out in the node component at two ends, thus realize the elongation of depression bar.Due to from significantly increasing, have impact on economy and the aesthetic property of engineering, and the back-out effect of depression bar is connected with comparatively large disturbances to depression bar and node, the reliability of the depression bar after back-out and the connection of node component is difficult to ensure.The present invention gives a kind of depression bar of the adjustable in length for self-balance prestress rope bar network, this depression bar can realize the elongation of depression bar easily when not disturbance depression bar is connected with node, forming process is safe, efficient, does not need heavy tensioning equipment.
Summary of the invention
The object of the invention is that size for solving the structure node component that method that when existing self-balance prestress rope bar network is shaped, depression bar screws out in the node component of two ends causes is large, the problem of structure economics difference, providing a kind of depression bar being applicable to the adjustable in length of self-balance prestress rope bar network.
Technical scheme of the present invention is: the single compression web member in common space lattice steel work is truncated into two sections, to be reconnected by two end-posts be integrated by connector.
The depression bar of described adjustable in length is made up of tubular rod segments 1, tubular rod segments 2 and connector 3 three part, its structure as shown in Figure 1, the tubular rod segments 1 sphere nodes component 4 corresponding to self-balance prestress rope bar network with one end of tubular rod segments 2 is connected, and the other end of tubular rod segments 1 and tubular rod segments 2 arranges the internal thread of certain length at the inner tubal wall of its end regions; Connector 3 is cylindrical components of a steel, processes the external screw thread of certain length at the two ends of connector 3, and the internal thread of externally threaded specification and tubular rod segments 1, tubular rod segments 2 inner tubal wall is supporting.After connector 3 is reliably connected with tubular rod segments 1 and tubular rod segments 2, rotating connector 3 can realize the change of the size a of depression bar.
Wherein, in connector 3, tubular rod segments 1, tubular rod segments 2, the screw thread direction of screw thread need ensure when single direction rotation connecting elements 3, the external screw thread at its two ends synchronously can be screwed in (or synchronously screwing out tubular rod segments 1 and tubular rod segments 2) in tubular rod segments 1 and tubular rod segments 2.
Wherein, the externally threaded part that arranges at connecting elements 3 two ends is cylindric, and residue position is prism (as hexagonal prism or eight prisms) so that adopt the apparatuses such as spanner to twist operation to its enforcement;
Wherein, tubular rod segments 1 is identical with the physical characteristic such as material, cross section of tubular rod segments 2, and its specification is determined by the designing requirement of self-balance prestress rope bar network.
The invention has the beneficial effects as follows:
The contribution of the present invention to prior art is mainly reflected in lower two aspects:
1) elongation of rod member is from the adjustment of rod member its length, has nothing to do with the size of the node component of structure, and therefore the significantly minimizing of the size of node component, saves steel, reduces the deadweight of structure.
2) adopt rod member length adjuster of the present invention can realize the elongation effect of the compression member of arbitrary dimension, larger degree of prestressing can be provided for self-balance prestress rope bar network.
Accompanying drawing explanation
Fig. 1 is the described depression bar organigram for the adjustable in length of self-balance prestress rope bar network, wherein: the sphere nodes 4 of tubular rod segments 1, tubular rod segments 2, connector 3, self-balance prestress rope bar network; A is the elevation of described rod member, and B is the cross-section structure of described rod member, and C is elevation and the plan view of connector 3.
Detailed description of the invention
In conjunction with such as Fig. 1, present embodiment is described, the depression bar of described adjustable in length is made up of three parts: tubular rod segments 1, tubular rod segments 2 and connector 3.One end of tubular rod segments 1 and tubular rod segments 2 need be mounted on self-balance prestress rope bar network node component, and the other end of tubular rod segments 1 and tubular rod segments 2 arranges the internal thread of certain length at the inner tubal wall of its end regions; The two ends of connector 3 are processed into has externally threaded cylinder, and the internal thread of externally threaded specification and tubular rod segments 1, tubular rod segments 2 inner tubal wall is supporting.When the screw thread direction of screw thread can realize single direction rotation connecting elements 3, the external screw thread at connector 3 two ends synchronously can be screwed in tubular rod segments 1 and tubular rod segments 2.
For the depression bar of described adjustable in length, before rope bar network integral assembling, first the male thread portion at connector 3 two ends is screwed in tubular rod segments 1 and tubular rod segments 2 completely, then the depression bar of whole that is formed by tubular rod segments 1, connector 3, tubular rod segments 2 welded or be bolted on node component corresponding in rope bar network, when needing to implement stretch-draw forming to the drag-line of structure, connector 3 is twisted with mechanical wrench is unidirectional, the size a of depression bar self is extended, until reach predetermined state.
Claims (4)
1. the depression bar for the adjustable in length of self-balance prestress rope bar network, it is characterized in that: described length-adjustable depression bar is made up of pipe fitting (1), pipe fitting (2), connecting elements (3) three part: pipe fitting (1) sphere nodes (4) corresponding to in network one end of pipe fitting (2) is reliably connected, pipe fitting (1) is connected by connecting elements (3) with the other end of pipe fitting (2).The inner tubal wall of end regions the internal thread of certain length is set; Connecting elements (3) is the twin-screw component of a steel, screw thread on the screw rod at two ends on screw thread and pipe fitting (1), pipe fitting (2) inner tubal wall is supporting, the screw rod at connecting elements (3) two ends can synchronously screw in pipe fitting (1) and pipe fitting (2) or synchronously screw out pipe fitting (1) and pipe fitting (2) by single direction rotation connecting elements (3), thus changes the size (a) of depression bar.
2. the depression bar of a kind of adjustable in length for self-balance prestress rope bar network according to claim 1, is characterized in that: the inner tubal wall of the end regions that tubular rod segments (1), tubular rod segments (2) are connected with connector (3) possesses the internal thread of certain length; Tubular rod segments (1) need be not less than the general extension demand of this depression bar with the length sum of the middle internal thread arranged of tubular rod segments (2).
3. the depression bar of a kind of adjustable in length for self-balance prestress rope bar network according to claim 1, it is characterized in that: connecting elements (3) is steel components, its two ends are cylindric, residue position is prism, arrange external screw thread at the circular cylinder shaped portion at connecting elements (3) two ends, in external screw thread and pipe fitting (1), pipe fitting (2), internal thread is supporting.
4. the depression bar of a kind of adjustable in length for self-balance prestress rope bar network according to claim 1, it is characterized in that: in the external screw thread at connector (3) two ends and tubular rod segments (1), tubular rod segments (2), the screw thread direction of internal thread must ensure when single direction rotation connecting elements (3), the external screw thread at connection member (3) two ends synchronously can be screwed in tubular rod segments (1) and tubular rod segments (2) or synchronously screw out tubular rod segments (1) and tubular rod segments (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310242239.5A CN104234307A (en) | 2013-06-19 | 2013-06-19 | Length-adjustable compression strut for self-balanced pre-stressing cable-strut grid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310242239.5A CN104234307A (en) | 2013-06-19 | 2013-06-19 | Length-adjustable compression strut for self-balanced pre-stressing cable-strut grid structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104234307A true CN104234307A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310242239.5A Pending CN104234307A (en) | 2013-06-19 | 2013-06-19 | Length-adjustable compression strut for self-balanced pre-stressing cable-strut grid structure |
Country Status (1)
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| CN (1) | CN104234307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067361A (en) * | 2015-07-27 | 2015-11-18 | 天津大学 | Space structure collapse test mechanical initial damage device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276733A (en) * | 1979-07-25 | 1981-07-07 | Liftech Consultants, Inc. | Method of constructing and erecting a dome-shaped structure |
| CN2440867Y (en) * | 2000-08-14 | 2001-08-01 | 刘连莹 | Lattice shell construction frame with curve adjustable cylindrical column surface |
| CN201116474Y (en) * | 2007-10-25 | 2008-09-17 | 金川集团有限公司 | Stope pedestrian inner well supporting device |
| CN101639091A (en) * | 2009-08-24 | 2010-02-03 | 北京航空航天大学 | Mechanism for adjusting length of rod rope |
| CN201679808U (en) * | 2010-03-18 | 2010-12-22 | 金城集团有限公司 | Telescopic rod |
| CN202449811U (en) * | 2012-02-10 | 2012-09-26 | 山河智能装备股份有限公司 | Device for regulating length of push rod of pallet truck |
| CN202592739U (en) * | 2012-06-05 | 2012-12-12 | 济南昌林气囊容器厂有限公司 | Pull rod device |
| CN203742072U (en) * | 2013-06-19 | 2014-07-30 | 东北林业大学 | Compression rod with adjustable length for self-balancing pre-stressed cable strut grid structure |
-
2013
- 2013-06-19 CN CN201310242239.5A patent/CN104234307A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276733A (en) * | 1979-07-25 | 1981-07-07 | Liftech Consultants, Inc. | Method of constructing and erecting a dome-shaped structure |
| CN2440867Y (en) * | 2000-08-14 | 2001-08-01 | 刘连莹 | Lattice shell construction frame with curve adjustable cylindrical column surface |
| CN201116474Y (en) * | 2007-10-25 | 2008-09-17 | 金川集团有限公司 | Stope pedestrian inner well supporting device |
| CN101639091A (en) * | 2009-08-24 | 2010-02-03 | 北京航空航天大学 | Mechanism for adjusting length of rod rope |
| CN201679808U (en) * | 2010-03-18 | 2010-12-22 | 金城集团有限公司 | Telescopic rod |
| CN202449811U (en) * | 2012-02-10 | 2012-09-26 | 山河智能装备股份有限公司 | Device for regulating length of push rod of pallet truck |
| CN202592739U (en) * | 2012-06-05 | 2012-12-12 | 济南昌林气囊容器厂有限公司 | Pull rod device |
| CN203742072U (en) * | 2013-06-19 | 2014-07-30 | 东北林业大学 | Compression rod with adjustable length for self-balancing pre-stressed cable strut grid structure |
Non-Patent Citations (1)
| Title |
|---|
| 付浩然等: "单元拼装式自平衡预应力网格结构成型方法的研究", 《中国建筑金属结构》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067361A (en) * | 2015-07-27 | 2015-11-18 | 天津大学 | Space structure collapse test mechanical initial damage device |
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| PB01 | Publication | ||
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Application publication date: 20141224 |