A kind of tube truss structure primary and secondary truss mutually passes through installation methodTechnical field
The present invention relates to space truss structure technical field of construction, specifically, being related to a kind of tube truss structure primary and secondary purlinFrame mutually passes through installation method.
Background technique
Truss structure is usually used in the public buildings such as workshop, exhibition center, gymnasium and the bridge of large span, tubular truss be byThe plane or space structure with triangular element of straight-bar composition, truss member are primarily subjected to axial tension or pressure, thusThe intensity that material can be made full use of saves material than solid web girder when span is larger, mitigates self weight and increases rigidity.
Tube truss structure common in the art, section elements form are usually up-side down triangle, wherein three main trussesFrame chord member connects and composes inversion triangular structure by web member, constitutes tubular truss unit, then by long straight jack truss chord member withEach tubular truss unit mutually passes through connection, final molding.
When Specific construction, since main couple chord member is located above overall structure, it is therefore desirable to by Large-scale Hoisting equipment intoRow high-altitude installation exercise.Specifically, hanging device slings jack truss chord member, juxtaposition after main couple chord member is set upIt is mutually passed through between two tubular truss units, then by rotating and upgrading rod piece.Under the prior art, the both ends of jack truss chord member are all mutually to pass throughMouthful, be all respectively necessary for mutually passing through with main couple pipe, thus during the installation process, when more rod pieces mutually pass through, in high vacancy working space byTo larger limitation, and when being transported by crane or tower crane, jack truss chord member position is difficult to keep stable, is difficult secondary purlinFrame chord member feeds node location to be welded.
In view of the above-mentioned problems, being to adjust hanging device repeatedly in such a way that artificial or jack pulls in the prior artThe position of the jack truss chord member of lifting after the relative securement of chord member position, then carries out time chord member welding installation.However, this above-mentionedKind method, although the requirement that high-altitude tubular truss mutually passes through construction is met to a certain extent, in length compared to original technologyIt is found in the practice and construction of phase, in such a way that above-mentioned this artificial or jack pulls, jack truss chord member is installed in feedingBehind position, it is excessive to pass through mouthful gap, and is easy to appear and passes through phenomena such as mouth tilts, is uneven, mutually passes through construction to seriously affectInstallation quality then causes truss structure integral construction quality to be difficult to ensure.
In view of this, should be improved to the prior art, to solve primary and secondary chord member of truss installation effectiveness in the prior artIt is low, the technical issues of installation quality is difficult to ensure.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention makes, a kind of easy with simplified process the purpose is to provideIn realization, primary and secondary chord member of truss installation positioning accuracy can be improved under high altitude operation environment, significantly improves chord member installation speed,Then shorten whole truss structure construction period, ensure that construction quality can reduce the tube truss structure primary and secondary of construction cost simultaneouslyTruss mutually passes through installation method.
To achieve the goals above, the present invention provides a kind of tube truss structure primary and secondary truss mutually to pass through installation method, describedTube truss structure primary and secondary truss mutually pass through installation method the following steps are included: step 1, preparation are for being arranged with jack truss chord memberTelescoping tube；Jack truss chord member, is then promoted to by hanging device pre- by the position absolute altitude between step 2, two main couples of confirmationInstallation site, and the telescoping tube is arranged in one end of the jack truss chord member；The jack truss chord member is not arranged by step 3One end of the telescoping tube is welded after mutually passing through with the positioning of main couple chord member, then will according to installation site on the main couple chord memberThe telescoping tube welds after mutually passing through after positioning after welding with the jack truss chord member with the main couple chord member, is installed.
Preferably, the telescoping tube is the hollow tube of both ends open, can offer notch on the nozzle of one side.
It is further preferred that multiple notches can be opened up according to rod piece size and live stress.
Further preferably, one end that the jack truss chord member is not arranged the telescoping tube, which is cut, to be formed intersection and connectsMouthful.
Preferably, in the step 2, the depth that the jack truss chord member protrudes into the telescoping tube is greater than 150 millimeters.
It further preferably,, can be in the notch after jack truss chord member protrudes into the telescoping tube in the step 2Spot welding is carried out at position.
Still further preferably, it in the step 3, when jack truss chord member is connect with main couple chord member, can first pass throughWhat sanding machine removed that spot welding at the jack truss chord member notch position formed is fixed temporarily solder joint, then moving telescopic pipe, and canTo be positioned to the telescoping tube, then related subgroup according to the installation marking line on main couple chord member.
As described above with practice it is found that tube truss structure primary and secondary truss of the present invention mutually passes through installation method,It is to add telescoping tube in one end of jack truss chord member, so that when jack truss chord member is connect with main couple chord member, Ke YitongStretch the telescoping tube adjustment jack truss chord member and main couple chord member link position are crossed, solves to pass through lifting under high altitude operation environmentThe problem of being accurately positioned is difficult to when equipment hoisting jack truss chord member；Further through on the side nozzle of telescoping tube according to rod piece rulerVery little and stress condition opens up multiple notches, and temporary weld is carried out by way of spot welding so that jack truss chord member connection,It will not fall off in lifting and position fixing process, significantly improve the safety of high-altitude chord member of truss operation.In conclusion institute of the present inventionThe tube truss structure primary and secondary truss stated mutually passes through installation method by the above method, and primary and secondary truss can be made mutually to pass through installation process moreIt is convenient to add, and primary and secondary chord member of truss installation positioning accuracy can be improved under high altitude operation environment, significantly improves chord member installation speed,Then shorten whole truss structure construction period, ensure that construction quality can reduce construction cost simultaneously.
Detailed description of the invention
Fig. 1 is flow chart, shows tube truss structure primary and secondary truss Xiang Guanan described in one embodiment of the present of inventionThe process of dress method；
Fig. 2 is schematic diagram, is shown after telescoping tube described in one embodiment of the present of invention connect with jack truss chord memberThe structure mutually passed through with main couple chord member；
Fig. 3 is schematic diagram, shows the structure that jack truss chord member is mutually passed through with main couple chord member in the embodiment of the invention.
Specific embodiment
The implementation that tube truss structure primary and secondary truss of the present invention mutually passes through installation method described below with reference to the accompanying drawingsExample.Those skilled in the art will recognize, without departing from the spirit and scope of the present invention, can use eachThe different mode of kind is modified described embodiment.Therefore, attached drawing and description are regarded as illustrative in nature, rather thanFor limiting scope of protection of the claims.In addition, in the present specification, attached drawing is drawn not in scale, and identical attached drawingLabel indicates identical part.
Fig. 1 is flow chart, shows tube truss structure primary and secondary truss Xiang Guanan described in one embodiment of the present of inventionThe process of dress method.As shown in Figure 1, the tube truss structure primary and secondary truss mutually passes through installation side in this embodiment of the inventionMethod is the following steps are included: the telescoping tube of step 1, preparation for being arranged with jack truss chord member；Between step 2, two main couples of confirmationPosition absolute altitude, jack truss chord member is then promoted to by pre-installed position by hanging device, and in the jack truss chord memberOne end is arranged the telescoping tube；The jack truss chord member is not arranged one end of the telescoping tube and main couple chord member is determined by step 3Position is welded after mutually passing through, and is then welded the telescoping tube and the jack truss chord member according to installation site on the main couple chord memberIt welds, is installed with after mutually being passed through after main couple chord member positioning afterwards.
The step of installation is mutually passed through to the truss of truss structure primary and secondary described in one embodiment of the invention with reference to the accompanying drawingIt is described in detail.Fig. 2 is schematic diagram, shows telescoping tube described in one embodiment of the present of invention and jack truss chord member connectsConnect the structure mutually passed through with main couple chord member afterwards.Fig. 3 is schematic diagram, shows jack truss chord member and master in the embodiment of the inventionThe structure that chord member of truss mutually passes through.Referring to Fig. 2 and Fig. 3, in this embodiment of the invention, telescoping tube as shown in Figure 2 is first prepared1, telescoping tube 1 is the hollow tube of both ends open, and one side opening can be according to rod size size and rod piece scene stressSituation opens up multiple notches 11, in this embodiment of the invention, opens up three notches 11 in 1 side nozzle position of telescoping tube,The other side of telescoping tube 1 intersection interface 12 is cut using numerical control intersection cutting equipment.The side of jack truss chord member 2 uses numberControl intersection cutting equipment and cut intersection interface, the other side is arranged telescoping tube 1 above-mentioned, then, in 11 position of notch intoRow spot welding forms tack weld, so that the telescoping tube 1 in transport, lifting and position fixing process of jack truss chord member 2 will not fall off.In addition, it is noted that the depth that jack truss chord member 2 protrudes into telescoping tube 1 should be greater than 150 millimeters.In practice of construction, inAnnular stop marking line 21 is done at 150 millimeters of bar one end on 2 pole face of jack truss chord member, in this way, when jack truss chord member 2 and stretchingWhen the draw 1 connects, it should ensure that the limit marking line 21 does not expose the nozzle of telescoping tube 1.
Relative position and absolute altitude between two adjacent main couples are confirmed using optics observing and controlling, after confirmation is errorless, using liftingThe jack truss chord member 2 for being equipped with telescoping tube 1 is promoted to pre-installed position by equipment, and between two main couple chord members 3.Jack trussChord member 2 is symmetrically installed according to the main couple structure from overall space truss both ends to the order of intermediate main couple structure.After the lifting in place of jack truss chord member 2, one end positioned according to the marking line on main couple chord member 3, mutually passed through, spot welding.It is anotherOne end is removed in abovementioned steps first with sanding machine and is fixed temporarily solder joint in what 1 notch spot welding of telescoping tube was formed, is stretched by movementThe draw 1 compares the positioning that the marking line on main couple chord member 3 carries out telescoping tube 1, then completes mutually to pass through and spot welding.
After checking truss size, telescoping tube 1 and jack truss chord member 2 are welded and fixed, then weld jack truss chord member 2 and main truss3 phase of frame chord member passes through weld bond, last decoupling device, and the above process completes the jack truss chord member installation of whole truss structure repeatedly.
As described above with practice it is found that tube truss structure primary and secondary truss of the present invention mutually passes through installation method,It is to add telescoping tube in one end of jack truss chord member, so that when jack truss chord member is connect with main couple chord member, Ke YitongStretch the telescoping tube adjustment jack truss chord member and main couple chord member link position are crossed, solves to pass through lifting under high altitude operation environmentThe problem of being accurately positioned is difficult to when equipment hoisting jack truss chord member；Further through on the side nozzle of telescoping tube according to rod piece rulerVery little and stress condition opens up multiple notches, and temporary weld is carried out by way of spot welding so that jack truss chord member connection,It will not fall off in lifting and position fixing process, significantly improve the safety of high-altitude chord member of truss operation.In conclusion institute of the present inventionThe tube truss structure primary and secondary truss stated mutually passes through installation method by the above method, and primary and secondary truss can be made mutually to pass through installation process moreIt is convenient to add, and primary and secondary chord member of truss installation positioning accuracy can be improved under high altitude operation environment, significantly improves chord member installation speed,Then shorten whole truss structure construction period, ensure that construction quality can reduce construction cost simultaneously.
Tube truss structure primary and secondary truss according to the present invention is described in an illustrative manner above with reference to attached drawing mutually to pass throughInstallation method.It will be understood by those skilled in the art, however, that the tube truss structure primary and secondary truss proposed for aforementioned present inventionInstallation method is mutually passed through, various improvement can also be made on the basis of not departing from the content of present invention.Therefore, protection model of the inventionEnclosing should be determined by the content of appended claims.