CN103774861B - A kind of reinforcement means of grid structure bar - Google Patents
A kind of reinforcement means of grid structure bar Download PDFInfo
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- CN103774861B CN103774861B CN201410037245.1A CN201410037245A CN103774861B CN 103774861 B CN103774861 B CN 103774861B CN 201410037245 A CN201410037245 A CN 201410037245A CN 103774861 B CN103774861 B CN 103774861B
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Abstract
The present invention is a kind of reinforcement means of grid structure bar, its step is as follows: select the compression member needed reinforcement, centered by the sphere nodes of above-mentioned compression member end, 4 chord members connected with above-mentioned sphere nodes are provided with chord member reinforcing frame, chord member reinforcing frame is made up of 4 support bars be contained in often between adjacent two chord members, and the two ends of each support bar are connected with chord member by chord member Connection Block; 4 web members connected with above-mentioned sphere nodes are provided with web member reinforcing frame, and web member reinforcing frame is made up of 4 support bars be contained in often between adjacent two web members, and the two ends of each support bar are connected with web member by web member Connection Block; Be provided with hound between each chord member Connection Block and adjacent two web member Connection Blocks, form one at sphere nodes place by chord member reinforcing frame, web member reinforcing frame and hound and reinforce support group, improve the bearing capacity of strut bridging.
Description
Technical field
The present invention relates to a kind of reinforcement means, particularly a kind of reinforcement means of grid structure bar.
Background technology
The rod member of space truss structure, member bending (during pressurized) or rod member fracture (during tension) is there will be under excessive stresses effect, also the disconnected phenomenon of rust is there will be under corrosive environment, for ensureing that overall structure has the ability continuing carrying, meet normal using function, under normal circumstances the rod member destroyed is reinforced or replaced.
The method that existing space truss structure is reinforced:
1) rod member Shift Method: for the rod member needed reinforcement, when when have ready conditions change rod member, original rod member is replaced with the rod member that cross section is suitable; Another kind of mode is exactly increase rod member at two Nodes.
2) bar cross section method is increased: the method for increasing section is reinforced on former rod member, as increased cross section and the radius of inertia to improve former rod member such as steel pipe, angle steel, channel-section steel, reinforcing bar on former bar bar, and improves Anti-pull-press supporting capacity.
3) changed structural system method: on original structure, increases a kind of structural system (as arch, external prestressing tendon etc.), changes the stress of original structure system, reaches the object of reinforcing with this.
The shortcoming of existing space truss structure reinforcement means:
1) rod member Shift Method: space truss structure generation member bending or fracture, will inevitably cause two ball node spacing changes of connecting rod, to bending rod member, two ball node distances can diminish, and to the rod member broken, two ball node distances can become large.Accomplish displacement rod member and original rod member isometric, need very large External Force Acting before displacement, the spacing of two ball nodes adjusted to prerupture length, and then replaces, be difficult in Practical Project operation; Install for ease of displacement, generally all displacement rod member length is directly got the ball node distance after destruction, the length of this and original rod member is not etc.This can cause replaced after rod member stressed less or substantially do not stress, and original design can not coincide.
2) increase bar cross section method: joint steel pipe, angle steel, channel-section steel, reinforcing bar etc. on former rod member, common way adopts and is welded to connect.Be welded to connect the welding residual stress that can produce in various degree, rod member is in local high-temperature state simultaneously, can have a strong impact on the stress of original rod member, therefore higher to the technological requirement of welding, not easily meets the demands.
3) changed structural system method: the method workload is large, and waste time and energy, reinforcement cost is higher, and changes the stress of original system completely, has larger difference between original rod member and design bearing capacity before and after reinforcing.The stress of all rod members all needs to analyze, and is not suitable for the engineering structures of local stiffening.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides the reinforcement means that a kind of method is reasonable, effectively can improve the grid structure bar of strut bridging bearing capacity.
Technical problem to be solved by this invention is realized by following technical scheme, the present invention is a kind of reinforcement means of grid structure bar, be characterized in, its step is as follows: select the compression member needed reinforcement, centered by the sphere nodes of above-mentioned compression member end, 4 chord members connected with above-mentioned sphere nodes are provided with chord member reinforcing frame, chord member reinforcing frame is made up of 4 support bars be contained in often between adjacent two chord members, and the two ends of each support bar are connected with chord member by chord member Connection Block; 4 web members connected with above-mentioned sphere nodes are provided with web member reinforcing frame, and web member reinforcing frame is made up of 4 support bars be contained in often between adjacent two web members, and the two ends of each support bar are connected with web member by web member Connection Block; Be provided with hound between each chord member Connection Block and adjacent two web member Connection Blocks, form one at sphere nodes place by chord member reinforcing frame, web member reinforcing frame and hound and reinforce support group.
In the reinforcement means technical scheme of above-described grid structure bar: be equipped with at the sphere nodes place of two ends of compression member and reinforce support group.
In the reinforcement means technical scheme of above-described grid structure bar: described support bar or hound comprise sleeve and two studdles, the inner of two studdles is threaded connection in sleeve, thread rotary orientation on two studdles is contrary, is equipped with installing hole in the outer end of two studdles.
In the reinforcement means technical scheme of above-described grid structure bar: described chord member Connection Block comprises by two involutory clip bodies formed of semicircle, the dual-side of clip body is along being provided with the connecting bolt fixing two semicircles, the dual-side of clip body is also provided with support bar connecting hole along upper, be connected with two chord members to pick up the ears junction plate in the bottom of clip body, each chord member picks up the ears junction plate is equipped with hound connecting hole.
In the reinforcement means technical scheme of above-described grid structure bar: described web member Connection Block comprises by two involutory clip bodies formed of semicircle, the both sides of clip body and its underpart are connected with 4 web members respectively and pick up the ears junction plate, 2 web members being located at clip body both sides pick up the ears junction plate is equipped with support bar connecting hole, and 2 web members being located at clip body bottom pick up the ears junction plate is equipped with hound connecting hole.
Compared with prior art, the present invention has following technique effect:
1. reinforcement means of the present invention is centered by ball node, with periphery chord member and web member for the strong point, chord member and web member distance ball node comparatively near, and length is shorter, and himself stability is relatively better, improves the bearing capacity of strut bridging.
2. the reinforcing position of reinforcement means of the present invention is in the position near ball node, so that form good support effect, and the original uniaxial force member stress of not obvious change simultaneously feature.
3. all for Nodes chord members and web member are coupled together, form one and support group, support stiffness is easily protected, and can ensure that each compressed member such as chord member or web member all have supporting role in the two directions, improves compressed member stability bearing capacity in each direction.
4. each support bar or hound adopt the connected mode of adjustable in length, install and construct very convenient in engineering, and supporting rod machining is convenient can produce by mass machine.
5. the web member Connection Block at compression member and support and connection position or chord member Connection Block adopt clamp connection mode, office's press contacts face larger between clip and rod member, ensure that clamp connection place not easily produces and press by office the destruction caused; Meanwhile, ribs is set in the middle of the clip, prevents clip warpage, the reliability of the junction plate that ensures to pick up the ears.
6. this reinforcement means applied range, all can use in bolt-ball net frame and solder sphere rack.
Accompanying drawing explanation
Fig. 1 is the structural representation supporting group between chord member.
Fig. 2 is the structural representation supporting group between web member.
Fig. 3 is the structural representation supporting group between chord member and web member.
Fig. 4 is the structural representation of support bar.
Fig. 5 is the structural representation of chord member Connection Block.
Fig. 6 is the structural representation of web member Connection Block.
Detailed description of the invention
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
A kind of reinforcement means of grid structure bar, its step is as follows: select the compression member needed reinforcement, centered by the sphere nodes 5 of above-mentioned compression member end, 4 chord members 1 connected with above-mentioned sphere nodes 5 are provided with chord member reinforcing frame, chord member reinforcing frame is made up of 4 support bars 2 be contained in often between adjacent two chord members 1, and the two ends of each support bar 2 are connected with chord member 1 by chord member Connection Block 6; 4 web members 3 connected with above-mentioned sphere nodes 5 are provided with web member reinforcing frame, and web member reinforcing frame is made up of 4 support bars 2 be contained in often between adjacent two web members 3, and the two ends of each support bar 2 are connected with web member 3 by web member Connection Block 7; Be provided with hound 4 between each chord member Connection Block 6 and adjacent two web member Connection Blocks 7, form one at sphere nodes 5 place by chord member reinforcing frame, web member reinforcing frame and hound 4 and reinforce support group.
Grid structure bar of the present invention comprises some layers of rack, every layer of rack is provided with several sphere nodes 5, each sphere nodes 5 be provided with 4 be horizontally disposed with and respectively with adjacent 4 chord members that sphere nodes 5 connects 1, the bottom of each sphere nodes 5 is provided with 4 and arranges downwards and the web member 3 connected with 4 sphere nodes 5 on lower floor rack.So when selecting the compression member needed reinforcement, can be equipped with at sphere nodes 5 place of two of a compression member end and reinforce support group.
The inner that described support bar 2 or hound 4 comprise sleeve and two studdles, 17, two studdles 17 is threaded connection in sleeve 8, and the thread rotary orientation on two studdles 17 is contrary, is equipped with installing hole 9 in the outer end of two studdles 17.Both can amplify or shorten by turnbarrel 8 distance of two studdles 17 like this, thus have adjusted the length of whole support bar 2 or hound 4, and be convenient to install and construction.Hound 4 or support bar 2 can be fixedly connected with chord member Connection Block 6 or web member Connection Block 7 by the mode of welding.The Connection Block being preferably as follows structure removably connects.
Described chord member Connection Block 6 comprises by two involutory clip bodies 10 formed of semicircle, arranges ribs in the middle of in clip body 10.The dual-side of clip body 10 is along being provided with the connecting bolt 11 fixing two semicircles, and during installation, two semicircles of clip body 10 encase chord member 1, are fixed by two semicircles by connecting bolt 11.The dual-side of clip body 10 is also provided with support bar connecting hole 13 along upper, and the two ends being contained in the support bar 2 on chord member 1 are bolted in support bar connecting hole 13.Be connected with two chord members to pick up the ears junction plate 12 in the bottom of clip body 10, each chord member picks up the ears junction plate 12 is equipped with hound connecting hole.Chord member junction plate 12 of picking up the ears is arranged downwards, is convenient to fixing hound 4.
Described web member Connection Block 7 comprises by two involutory clip bodies 10 formed of semicircle, arranges ribs in the middle of in clip body 10.The both sides of clip body 10 and its underpart are connected with 4 web members respectively and pick up the ears junction plate 14,2 web members being located at clip body 10 both sides pick up the ears junction plate 14 is equipped with support bar connecting hole 15,2 web members being located at clip body 10 bottom pick up the ears junction plate 14 is equipped with hound connecting hole 16, are convenient to support bar 2 or hound 4 connects.
Claims (3)
1. the reinforcement means of a grid structure bar, it is characterized in that, its step is as follows: select the compression member needed reinforcement, centered by the sphere nodes of above-mentioned compression member end, 4 chord members connected with above-mentioned sphere nodes are provided with chord member reinforcing frame, chord member reinforcing frame is made up of 4 support bars be contained in often between adjacent two chord members, and the two ends of each support bar are connected with chord member by chord member Connection Block; 4 web members connected with above-mentioned sphere nodes are provided with web member reinforcing frame, and web member reinforcing frame is made up of 4 support bars be contained in often between adjacent two web members, and the two ends of each support bar are connected with web member by web member Connection Block; Be provided with hound between each chord member Connection Block and adjacent two web member Connection Blocks, form one at sphere nodes place by chord member reinforcing frame, web member reinforcing frame and hound and reinforce support group; Described chord member Connection Block comprises by two involutory clip bodies formed of semicircle, the dual-side of clip body is along being provided with the connecting bolt fixing two semicircles, the dual-side of clip body is also provided with support bar connecting hole along upper, be connected with two chord members to pick up the ears junction plate in the bottom of clip body, each chord member picks up the ears junction plate is equipped with hound connecting hole; Described web member Connection Block comprises by two involutory clip bodies formed of semicircle, the both sides of clip body and its underpart are connected with 4 web members respectively and pick up the ears junction plate, 2 web members being located at clip body both sides pick up the ears junction plate is equipped with support bar connecting hole, and 2 web members being located at clip body bottom pick up the ears junction plate is equipped with hound connecting hole.
2. the reinforcement means of grid structure bar according to claim 1, is characterized in that: be equipped with at the sphere nodes place of two ends of compression member and reinforce support group.
3. the reinforcement means of grid structure bar according to claim 1, it is characterized in that: described support bar or hound comprise sleeve and two studdles, the inner of two studdles is threaded connection in sleeve, thread rotary orientation on two studdles is contrary, is equipped with installing hole in the outer end of two studdles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410037245.1A CN103774861B (en) | 2014-01-26 | 2014-01-26 | A kind of reinforcement means of grid structure bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410037245.1A CN103774861B (en) | 2014-01-26 | 2014-01-26 | A kind of reinforcement means of grid structure bar |
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| CN103774861A CN103774861A (en) | 2014-05-07 |
| CN103774861B true CN103774861B (en) | 2016-01-27 |
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| CN104631849B (en) * | 2015-02-16 | 2016-11-23 | 中冶建工集团有限公司 | A kind of stair face limit construction protection railing and installation method |
| CN104975726A (en) * | 2015-06-12 | 2015-10-14 | 徐州市产品质量监督检验中心 | Grid structure rod element composite reinforcing method |
| CN107366440A (en) * | 2017-08-25 | 2017-11-21 | 中冶建筑研究总院有限公司 | A kind of reinforcing device and method of bolt-ball net frame pull bar and node |
| CN108560946A (en) * | 2018-05-09 | 2018-09-21 | 中建七局安装工程有限公司 | Replace the tool of grid node |
| CN108952204B (en) * | 2018-08-30 | 2024-04-19 | 安徽省建筑科学研究设计院 | Connection structure for reinforcing net rack |
| CN109610870B (en) * | 2018-12-20 | 2020-12-25 | 浙江明城建设有限公司 | A consolidate bearing structure for building engineering |
| CN111236689B (en) * | 2020-03-13 | 2021-08-03 | 广东楠通建设工程有限公司 | Steel structure node reinforcing method for assembly type building |
| CN113529979A (en) * | 2021-07-30 | 2021-10-22 | 中建七局安装工程有限公司 | Exempt from welded rack node reinforced structure |
| CN115075587A (en) * | 2022-07-28 | 2022-09-20 | 中铁上海工程局集团有限公司 | Assembling equipment and construction method |
| CN115929075A (en) * | 2023-01-06 | 2023-04-07 | 中建八局第二建设有限公司 | Upper bearing type steel net rack reinforcing system |
| CN116084728A (en) * | 2023-01-09 | 2023-05-09 | 清华大学 | Reinforcing structure and loop bar |
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