CN104278779A - Network cable for large decorative curtain wall and stretching formation method during mounting of network cable - Google Patents
Network cable for large decorative curtain wall and stretching formation method during mounting of network cable Download PDFInfo
- Publication number
- CN104278779A CN104278779A CN201410598272.6A CN201410598272A CN104278779A CN 104278779 A CN104278779 A CN 104278779A CN 201410598272 A CN201410598272 A CN 201410598272A CN 104278779 A CN104278779 A CN 104278779A
- Authority
- CN
- China
- Prior art keywords
- rope net
- rope
- curtain wall
- steel pipe
- drag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a network cable for a large decorative curtain wall and a stretching formation method during mounting of the network cable. Based on a construction-finished decorative modeling curtain wall keel, the decorative modeling curtain wall keel is a cylindrical-surface steel structural curtain wall keel formed by a plurality of ellipse steel pipes which are obliquely crossed with each other; the total mounting sequence of the network cable is that by matching the mounting sequence of the steel structure, the network cable is mounted layer by layer from bottom to top, large grids of the same layer of the network cable are mounted at first and small grids are mounted then according to the mounting completion condition of on-site steel structure; the stretching total principle of the network cable is layer-by-layer stretching for twice. Target prestress of the final network cable is realized by stretching in levels and per times; meanwhile, by utilizing per-time stretching and structural stress condition before stretching, the mounting and stretching sequences of the network cable are reasonably arranged, so that the problem of mounting and stretching formation of the prestress network cable in saddle-shaped grids of the cylindrical-surface steel structural curtain wall keel is effectively solved, and a reference is provided for similar engineering cases.
Description
Technical field
The present invention relates to construction techniques field, particularly a kind of rope net being applicable to a kind of larger decorative curtain wall of cylinder steel construction curtain wall keel and the method for installing Tension Forming thereof.
Background technology
Namely decorative faced curtain wall is arranged on the curtain wall of building wall external decoration function, at present, the application of decorative faced curtain wall is more and more extensive, its moulding is unique, pattern is different, obtain good visual effect, but because its architectural image is unique, stress form is rare, moulding is complicated, some difficult problems are brought to construction, especially curtain skeleton is provided with installation and the Tension Forming method of rear rope net, the present invention mainly solves installation and the Tension Forming method of the prestressed cable net be applicable in the shape of a saddle district lattice of cylinder steel construction curtain wall keel, it is the rope net mounting method carried out based on the ornamental moulding curtain skeleton of having constructed, described ornamental moulding curtain skeleton is the face of cylinder steel construction curtain wall keel formed by multiple oblique cross one another oval steel pipe, agent structure in the middle of face of cylinder steel construction curtain wall keel surround, socket with annex bottom it, by arranging that umbrella shaped support is connected with agent structure on facade, top is connected with roof structure by mast supporting, described oval steel pipe diagonal cross forms shape of a saddle district lattice one by one.
, baroque ornamental moulding curtain skeleton unique for above-mentioned moulding carries out the installation of rope net, and the prestressing force on the one hand owing to requiring in rope net is comparatively large, generally reach 30kN, and the structure that rope net connects is space endless tube, lower at global formation forward stability; On the other hand, this Cable Structure curtain wall build is large, form of structure and mechanical property uniqueness, large with the Cable Structure difference of general roof system and curtain wall, referential Engineering Projects is few, and the specification of the rope net of prior art medium-and-large-sized decorative faced curtain wall construction and guiding material shortage.
In its construction, technical problem urgently to be resolved hurrily has: the installation site degree of accuracy of (1) on-the-spot drag-line is low: all rope nets are all by turning to otic placode to be connected with steel work main joist, the final moulding of rope net with turn to the location of otic placode closely bound up, outer keel entirety is cylinder and tubular spatially, single outer keel is cubic oval shape, and complicated unique modeling structure makes to turn to the location of otic placode on oval steel pipe very difficult in in-site installation; (2) drag-line installs difficulty: rope net is attached on steel structure keel, and these keel and agent structure distance have more remote, rope net is filled in whole keel shoe, installation position sets high, periphery does not have structure to depend on, and how to carry out turning to the welding of otic placode and the installation of prestressed cable to be technical barriers; (3) rope net sequence of construction is unreasonable, causes graded crossing to be constructed, there is potential safety hazard: because the construction period is nervous, and for saving the engineering time, accelerating construction progress, during construction, outer keel and rope net carry out simultaneously, there is the potential safety hazard of upper and lower graded crossing construction; (4) the prestressing force pulling shaping of rope net is difficult: the prestressed cable of prior art is generally fixed in reliable structure, can directly stretch-draw in work progress, this engineering syndeton is space endless tube, lower weld is at annex, top sockets at roof system, and form space stretch-draw stress system, keel stiffness by itself is very little, if directly stretch-draw in installation keel process, larger prestressing force acts directly on outer keel and outer keel will be made to produce distortion; The oval steel pipe that rope net depends on is the steel pipe of diameter 400 wall thickness 10/20mm, only on outer keel crosspoint, thickness of steel pipe thickeies, the diameter of whole keel shoe reaches 110m, segmentation is needed to install during keel installation, need to arrange some temporary support structures, later stage temporary support structure needs to remove, and before and after removing, prestressing force needs to carry out Coordination Treatment, therefore, the prestress application how carrying out rope net is the emphasis of this engineering is also difficult point.
Summary of the invention
The object of the invention is provide a kind of rope net of larger decorative curtain wall and install the method for Tension Forming, solve installation and the Tension Forming problem of the prestressed cable net in the shape of a saddle district lattice of cylinder steel construction curtain wall keel, adopt classification, gradation stretch-draw realizes the target prestressing force of final rope net, simultaneously for coordinating gradation stretch-draw and the front structure stress condition met of stretch-draw, the installation of reasonable Arrangement rope net and tension sequence, solve referential Engineering Projects in prior art few, the specification of rope net construction of larger decorative curtain wall and the problem of guiding material shortage, the on-the-spot drag-line installation site degree of accuracy is low, drag-line installs difficult and rope net sequence of construction is unreasonable, graded crossing is caused to be constructed, there is the technical barrier of potential safety hazard, for Sinilar engineering case is offered reference.
For realizing above-mentioned technical purpose, the technical scheme that the present invention takes is as follows:
A kind of rope net of larger decorative curtain wall, be connected on ornamental moulding curtain skeleton, described ornamental moulding curtain skeleton is the face of cylinder steel construction curtain wall keel formed by multiple oblique cross one another oval steel pipe, agent structure in the middle of face of cylinder steel construction curtain wall keel surround, socket with annex bottom it, by arranging that umbrella shaped support is connected with agent structure on facade, top is connected with roof structure by mast supporting, described oval steel pipe diagonal cross forms shape of a saddle district lattice one by one, it is characterized in that: the rope net of described larger decorative curtain wall comprises the unit rope net be arranged on one by one in shape of a saddle district lattice, the tapered end at the drag-line two ends of described unit rope net connects one respectively and turns to otic placode, the described otic placode that turns to is fixed with the oval steel-pipe welding surrounding shape of a saddle district lattice, described unit rope net is two-way single rustling sound net, comprises internal layer oblique cord and outer oblique cord, and internal layer oblique cord and outer oblique cord are each passed through two-way rope retainer ring to carry out being connected by pull.
Preferably, the disc of described two-way rope retainer ring is parallel to the wire side setting of unit rope net, it is from comprising outer ring, core ring and interior side ring outside to inside, described outer ring and core ring, carry out bolt between core ring and interior side ring respectively and fix, the one side that wherein outer ring and core latch closure close has the outer oblique cord groove for outer oblique cord; The one side of interior side ring and core loop contacts has the internal layer oblique cord groove passed through for internal layer oblique cord.
Preferred further, the outside of described two-way rope retainer ring is also provided with decorating structure.
Preferred, described decorating structure is be fixed on the medallion video disc outside two-way rope retainer ring at the bottom of dish.
The present invention also provides a kind of method of installation Tension Forming of rope net of above-mentioned larger decorative curtain wall, it is the rope net mounting method carried out based on the ornamental moulding curtain skeleton of having constructed, it is characterized in that, the rope net of described larger decorative curtain wall is two-way single rope curtain wall system, comprise the unit rope net be arranged on one by one in shape of a saddle district lattice, the staged and layered of oval steel pipe is coordinated to install, after this layer of oval penstock installation completes, the installation of this layer unit rope net can be carried out, successively classification is from bottom to up installed, and the Specific construction step of installation is as follows:
Step one, preparation of construction: quality inspection is carried out to the oval steel pipe of the temporary support structure of installation in position and first floor from bottom to top, confirm that the setting of temporary support structure also meets the requirements, oval steel pipe has been constructed in place simultaneously, and the size and shape of its shape of a saddle district lattice formed arranges and all meets designing requirement;
Step 2, select the shape of a saddle district lattice of construction: according to from bottom to top, the order of Ge Hou great district, first community lattice carries out constructing the selection of shape of a saddle district lattice;
Step 3, confirm drag-line stretch-draw direction and with oval steel pipe weld site: in conjunction with FEM (finite element) model software analysis confirm drag-line stretch-draw direction and with oval steel pipe weld site, and on oval steel pipe, mark all welding sites;
Step 4, installation zero prestressed internal layer oblique cord: according to the internal layer oblique cord stretch-draw direction designed in advance, the one Tou Yu district lattice oval steel pipe on one side of internal layer oblique cord is welded to connect, other end is connected with the oval steel-pipe welding on limit, lattice opposite, district, without prestressing force on internal layer oblique cord, adjacent inner layer oblique cord perfect parallelism is arranged and distance controlling between adjacent inner layer oblique cord is reasonable;
Step 5, installation zero prestressed outer oblique cord: install outer oblique cord according to the method for step 4, the drag-line in previous direction intersects to form the rope net of rule with it;
Step 6, fix two-way rope retainer ring at the crosspoint place of internal layer oblique cord and outer oblique cord: clamp with two-way rope retainer ring in the point of intersection of internal layer oblique cord and outer oblique cord, the drag-line of both direction is clamped together, internal layer oblique cord and outer oblique cord are placed in internal layer oblique cord groove and outer oblique cord groove respectively, make the drag-line of two-way rope retainer ring to retained part not apply power, drag-line can free stretch-draw;
Step 7, carry out the installation of unit rope net in other shape of a saddle district lattice of first floor: mounting method to step 6, is all constructed complete to this layer unit rope net with reference to step one;
Step 8, after the segmentation installation of the oval steel pipe of the second layer, carry out the installation of second layer unit rope net, after the segmentation installation of the oval steel pipe of third layer, carry out the installation of third layer unit rope net, mounting method reference step one is to step 6, successively carry out from top to bottom, carry out the construction of higher position by temporary support structure, the unit rope net to all shape of a saddle districts lattice is all constructed complete;
The first time stretch-draw of step 9, rope net: the average Suo Li being first time stretch-draw with the target Suo Li of 1/3 ~ 2/3 times, in units of a shape of a saddle district lattice, first time stretch-draw is carried out in layering from bottom to up, and carries out stretch-draw respectively to the drag-line of both direction;
The dismounting of step 10, temporary support structure: carry out after the first time stretch-draw of rope net completes, removes temporary structure and supports;
The second time stretch-draw of step 11, rope net: the average Suo Li being second time stretch-draw with target Suo Li, in units of a shape of a saddle district lattice, second time stretch-draw is carried out in layering from top to bottom, and carries out stretch-draw respectively to the drag-line of both direction;
The integrated regulation of step 12, rope net: integrated regulation checks whole cable net structure, finally mends stretch-draw for not meeting the requirements of local drag-line, and make rope rete cord power reach design stretching rope power, so far, rope net has been constructed.
Preferably, described oval steel pipe is divided into two-tube truss in the front office division of curtain wall, and opisthodome part is single steel pipe, and the unit rope net of lobby is arranged in the shape of a saddle district lattice of that root steel pipe formation in the outer part; The unit rope net of opisthodome is arranged between single steel pipe.
Preferably, in described step 4 and step 5, the concrete installation of drag-line comprises the following steps:
(1) measurement and positioning: utilize total powerstation to project on oval steel pipe by the precalculated position of otic placode that turns to;
(2) on oval steel pipe, paint the welding position turning to otic placode of mark drag-line one end;
(3) corresponding marked turn to the otic placode position mark drag-line other end turn to otic placode anchoring position;
(4) correspondence position of painting mark on oval steel pipe is fixed welding and is turned to otic placode;
(5) drag-line is installed: by drag-line through the connecting hole turned on otic placode, the rope head of drag-line is connected with turning to otic placode.
Preferred further, the temporary support structure in described step one, step 8 and step 10 comprises pylon and the opisthodome partial fixing gusseted on the body construction of lobby part.
Preferred further, in described step 6, in the outside of the outermost outer ring of two-way rope retainer ring, decorating structure is installed.
Preferred, described decorating structure is be fixed on the medallion video disc outside two-way rope retainer ring at the bottom of dish.
Compared with prior art, technical advantage of the present invention is:
1, by adopting finite element software external keel installation stage and final molding stage to carry out modeling Simulation, all rope nets being carried out accurate analog, thus determines the space coordinates of outer keel; During field conduct, the reference point according to being arranged on periphery carries out by total powerstation the accurate location that each turns to otic placode, solves the difficulty that the on-the-spot drag-line installation site degree of accuracy is low;
2, by the operating platform that the temporary support structure installed set by steel structure keel is constructed as rope net, described temporary support structure comprises pylon and the opisthodome partial fixing support triangle frame on the body construction of lobby part, hanging basket can also be set at keel top when Construction of High-rise, solve drag-line and difficult, that construction is inconvenient problem is installed;
3, according to the separation of oval steel tube framework, rope net fitting limit is divided into multilayer to carry out, and in installation process rope net and keel synchronous construction, namely can carry out this layer of rope net after installing this layer of keel to install, overall installation order is successively installed from bottom to up for coordinating Steel Structure Installation order, and same layer rope barrier lattice install sequencing according to on-the-spot Steel Structure Installation performance Xian great district Ge Hou community lattice; Ensure that construction speed, solve the problem that rope net sequence of construction in prior art is unreasonable, cause graded crossing construction, there is potential safety hazard;
4, the net prestressed loading classification of rope is carried out, the rope net stretch-draw overall principle is successively stretch-draw at twice, namely when rope net is successively installed from bottom to top with the target Suo Li of 1/3 ~ 2/3 times for stretching rope power successively carries out first time stretch-draw, rope net is installed and for the first time stretch-draw completes on temporary support structure; Rope net basic forming after first time stretch-draw completes, temporary support structure is removed, again from top to bottom with target Suo Li for stretching rope power successively carries out second time stretch-draw, both ensure that the safety of rope net stretch-draw, rope curtain wall installation quality and safe effect have also been obtained guarantee simultaneously, occur without security incident and improve safety stock, adding safety guarantee to construction constituent parts and constructor.
Accompanying drawing explanation
Fig. 1 to be the rope net construction that the present invention relates to keel construct construction flow chart synchronously carried out;
Fig. 2 is the flow chart of the drag-line construction that the present invention relates to;
Fig. 3 is the overall structure schematic diagram of agent structure and the ornamental moulding curtain wall that the present invention relates to;
Fig. 4 is the structural representation of the ornamental moulding curtain skeleton 1 that the oval steel pipe that the present invention relates to is formed;
Fig. 5-1 ~ 5-3 is the installation process schematic diagram of the unit rope net 2 that the present invention relates to;
Fig. 6 is the scheme of installation of the drag-line that the present invention relates to;
Fig. 7 is the mounting structure schematic diagram of the two-way rope retainer ring 23 that the present invention relates to;
Fig. 8 is the fractionation structural representation of the two-way rope retainer ring 23 that the present invention relates to;
Fig. 9 is the layout schematic diagram of the temporary support structure 4 that the present invention relates to;
Figure 10 is the structural representation of the pylon 41 in the temporary support structure that the present invention relates to;
Figure 11 is the structural representation of the gusseted 42 in the temporary support structure that the present invention relates to.
The oval steel pipe of Reference numeral: 1-ornamental moulding curtain skeleton, 11-, 12-shape of a saddle district lattice, 2-unit rope net, 21-drag-line, 211-internal layer oblique cord, the outer oblique cord of 212-, 22-turn to the outer oblique cord groove of side ring in the two-way rope retainer ring of otic placode, 23-, 231-outer ring, 232-core ring, 233-, 234-bolt, 235-pad, 24-rope head, 25-, 26-internal layer oblique cord groove, 27-decorating structure, 3-agent structure, 4-temporary support structure, 41-pylon, 42-gusseted.
Detailed description of the invention
The decorative faced curtain wall moulding that the present embodiment relates to is taken from red lantern, as Fig. 3 and Fig. 4, for obtaining the profile of red lantern, a lantern skin in its agent structure arranged outside, i.e. the steel construction curtain wall on the face of cylinder, keeps the distance of 5 ~ 21m between curtain wall and main structure body, its diameter is 110m, height is 60m about, and being made up of the rope net of moulding main joist, umbrella support, mast supporting, larger decorative curtain wall and perpendicular rope, is nonocclusive decorative faced curtain wall.Ornamental moulding curtain skeleton 1 adopts mutual oblique cross one another oval steel pipe 11, socket with annex bottom it, by arranging that umbrella shaped support is connected with agent structure on facade, top is connected with roof structure by mast supporting, oval steel pipe 11 bears circumferential pressure, and annex provides downward pulling force, and rope net provides the stability in vertical face and forms shear-resistant membrane, perpendicular rope is that the interior string of ring truss provides vertical contact, overall formation one independently strain space structure.Be provided with fixed bearing with annex connecting place bottom keel, umbrella support and main body junction are provided with three-dimensional fixed-hinged support, and umbrella support and steel worm-gearing junction are provided with elastic support.
According to Design Requirement Drawing, the segmentation of ornamental moulding curtain skeleton 1 lifted, main joist is all shelved in pylon 41 and gusseted 42.Main joist takes the mode of staged and layered lifting from bottom to top to install.Wherein oval steel pipe 11 intersects formation 56 shape of a saddle district lattice 12, is divided into seven layers, is provided with unit rope net 2 in district's lattice.Boundary shape and the size of each district lattice differ greatly, maximum span 33.3 meters, minimum span about 2.2 meters.Due to the requirement of permeability, drag-line is arranged fine and closely woven, and specification is little, and spacing is little, and radical is many.According to designing requirement, in the present embodiment, prestressed cable need apply the prestressing force of 30kN.The rope net of larger decorative curtain wall is two-way monolayer cable net, and drag-line adopts 20mm stainless steel cable, and the point of intersection of two-layer rope net is connected by two-way rope retainer ring 23, amounts to 2900 drag-lines 21.Drag-line two ends are connected with oval steel truss or oval steel tubular structure, the sleeve adjusting device that rope head 24 adopts compacting ground tackle, fork ear formula connector and two ends adjustable.Rope head 24 turns to otic placode 22 and oval steel pipe 11 pinned connection by one, can realize multiple-directional rotating.
Lower mask body introduces the construction and installation technology of the cable net structure of this larger decorative curtain wall.
Described unit rope net 2 is filled in shape of a saddle district lattice 12, is two-way single rope, coordinates the erection sequence of oval steel pipe 11, intersect with oval steel pipe and carry out, successively classification is from bottom to up installed, and as Fig. 1 and Fig. 2, the Specific construction step that the successively classification of rope net is installed is as follows:
Step one, preparation of construction: the segmental hoisting quality checking oval steel pipe 11, confirm that the oval steel pipe of instantly constructing has been constructed in place, the size and shape of its shape of a saddle district lattice 12 formed arranges and all meets designing requirement, and the setting of temporary support structure 4 also meets the requirements; Described temporary support structure 4 comprises pylon 41 and the opisthodome partial fixing gusseted 42 on the body construction of lobby part, it undertakes the effect of temporary support steel structure keel, and lobby part refers to Fig. 9, Figure 10 and Figure 11 for supporting the pylon of outer keel and opisthodome part for the layout of the gusseted supporting outer keel; Oval steel pipe is that segmentation successively lifts, and can carry out the rope net construction in district's lattice of this formable layer after every one deck has lifted.In addition, described oval steel pipe 11 due to lobby part curtain wall and agent structure distance larger--maximumly reach about 20m, be difficult to arrange umbrella support, therefore oval steel pipe 11 is divided into ring truss in the front office division of curtain wall, described ring truss is connected with roof structure by strut at top; Opisthodome part is single steel pipe, and the unit rope net of lobby is arranged in the shape of a saddle district lattice of that root steel pipe formation in the outer part; The unit rope net of opisthodome is arranged between single steel pipe.
Meanwhile, set up SURVEYING CONTROL NETWORK, the rule of interior network point reconnaissance is, phase intercommunication video between each point can form a closed loop wire; Point position is laid in the place being not affected or less affected by construction infection as far as possible; Point position should get around beam, post etc., in order to avoid upwards pilot measurement time be obstructed; After internal locus of control upwards pilot measurement, namely with institute's pilot measurement control point for establishing website, in total powerstation, layout point coordinate is treated in input, and total powerstation calculates automatically treats that layout point is arrived at a station the distance and bearing angle of the heart, elevation angle under design coordinate system.Establishing website to set up total powerstation, directed as backsight point with another known point, total powerstation automatically calculate put some azimuth, position and a distance.First dial angle with position of facing left, dial in the sight line of angle at total powerstation and set up prism or reflector plate, measure its distance, move to required separation distance point position, release and treat layout point, and demarcate on the spot.Layout point is treated with method demarcation again with the right position of dish.A line is done in right twice layout point position of facing left, and line mid point is treats layout point.After setting-out terminates, measure the coordinate of point to be located, and compare with design load, if in the scope that limit difference allows, then carry out lower some setting-outs; If it is poor to exceed limit, search reason, again setting-out.If it is excessive to run into elevation angle, exceeds the measurement of elevation scope of total powerstation, then should use diagonal eyepiece.Release all points at this intervisibility, proceed to next control point and continue setting-out, check the point of station institute setting-out simultaneously, compare and measure the difference of value and design load, if in limit difference scope, qualified, otherwise analyze reason, again setting-out.Between different layers, the point of energy intervisibility also should check.
Step 2, select the shape of a saddle district lattice 12 of construction: according to from bottom to top, the order of Ge Hou great district, first community lattice carries out constructing the selection of shape of a saddle district lattice 12;
Step 3, confirm drag-line 21 stretch-draw direction and with oval steel pipe 11 weld site: in conjunction with FEM (finite element) model software analysis confirm drag-line stretch-draw direction and with oval steel pipe weld site, and on oval steel pipe, mark all welding sites; Initial setting concentrates stretching plan, whole prestressed cable net stretching process is simulated, adopts finite element software ANSYS, consider that structure has Double Nonlinear, i.e. geometrical non-linearity and material nonlinearity, considers geometrical large distortion and Stress stiffening effect in calculating.Integrated comparative, finally determines final stretching plan and tension sequence.As long as the software finite element software that the present invention relates to, does not have particularity as which kind of software, as long as can calculate loading characteristic, object is force analysis, guarantees that by the theory calculate of design arrangement otic placode and drag-line be safe.Utilize computer software, FEM (finite element) calculation is the mode that present engineering structures is also easy to the solution computational problem expected very naturally, very general.Conventional finite element software is ANSYS, SAP2000 etc., this engineer applied ANSYS.
Step 4, installation zero prestressed outer oblique cord 212: as Fig. 6 and Fig. 5-1, according to the outer oblique cord stretch-draw direction designed in advance, the one Tou Yu district lattice oval steel pipe on one side of outer oblique cord is welded to connect, other end is connected with the oval steel-pipe welding on limit, lattice opposite, district, without prestressing force on outer oblique cord, adjacent outward layer oblique cord perfect parallelism setting and distance controlling between adjacent inner layer oblique cord is reasonable; From 52kg to 85kg not etc., the concrete mounting method of drag-line is single cable weight:
(1) measurement and positioning: utilize total powerstation to project on oval steel pipe 11 by the precalculated position of otic placode 22 that turns to;
(2) on oval steel pipe 11, paint the welding position turning to otic placode 22 of mark drag-line one end;
(3) corresponding marked turn to the otic placode position mark drag-line other end turn to otic placode 22 anchoring position;
(4) correspondence position of painting mark on oval steel pipe is fixed welding and is turned to otic placode 22;
(5) drag-line is installed: by drag-line through the connecting hole turned on otic placode 22, the rope head 24 of drag-line is connected with turning to otic placode 22.
Step 5, installation zero prestressed internal layer oblique cord 21: as Fig. 5-2, install internal layer oblique cord 211 according to the method for step 4, the drag-line in previous direction intersects to form the rope net of rule with it;
Step 6, fix two-way rope retainer ring 23 at the crosspoint place of internal layer oblique cord 211 and outer oblique cord 212: clamp with two-way rope retainer ring 23 in the point of intersection of internal layer oblique cord 211 and outer oblique cord 212, the drag-line of both direction is clamped together, internal layer oblique cord 211 and outer oblique cord 212 are placed in internal layer oblique cord groove 26 and outer oblique cord groove 25 respectively, make the drag-line of two-way rope retainer ring to retained part not apply power, drag-line can free stretch-draw; As shown in Figure 7 and Figure 8, the disc of two-way rope retainer ring 23 is parallel to the wire side setting of unit rope net 2, it is from comprising outer ring 231, core ring 232 and interior side ring 233 outside to inside, described outer ring 231 and core ring 232, carry out bolt between core ring 232 and interior side ring 233 respectively and fix, the one side that wherein outer ring 231 and core ring 232 fasten has the outer oblique cord groove 25 of the outer oblique cord of confession; The one side that interior side ring 233 and core ring 232 fasten has the internal layer oblique cord groove 26 passed through for internal layer oblique cord.Each two-way rope retainer ring nearly weighs 2.0kg, every drag-line is installed 4-15 and overlaps two-way rope retainer ring, be also provided with decorating structure 27 in the outside of two-way rope retainer ring, for being fixed on the medallion video disc outside two-way rope retainer ring at the bottom of dish in the present embodiment.For meeting duration progress during construction, on ground, two-way rope retainer ring is decomposed, platen 1 and platen 2 are fixed on outer drag-line, and platen 3 is fixed on internal layer oblique cord, finally three platens of the oblique drag-line of Nodes constraint both direction are connected with to connecting bolt serial connection and are fixed.According to construction schedule needs, cable curtain wall can be divided into multiple operation section, carry out drag-line installation work simultaneously.The protection work to drag-line and bidirectional nodes connecting parts should be carried out in drag-line installation process, if any damage, factory repair should be contacted in time or change respective material.
Step 7, carry out the installation of unit rope net 2 in other shape of a saddle district lattice 12 of first floor: mounting method to step 6, is all constructed complete to this layer unit rope net with reference to step one;
Step 8, after the segmentation installation of the oval steel pipe 11 of the second layer, carry out the installation of second layer unit rope net 2, after the segmentation installation of the oval steel pipe 11 of third layer, carry out the installation of third layer unit rope net 2, mounting method reference step one is to step 6, successively carry out from top to bottom, the construction of higher position is carried out by temporary support structure, district's lattice of the present embodiment are divided into seven floor, carry out the installation of other floor district lattice inhaul from bottom to up, the bidirectional cable to all districts lattice is all constructed complete.
The first time stretch-draw of step 9, rope net:
Because this object of construction production is more special, what adopt is the construction of main body steel work limit, the cross-operation order of stainless drag-line limit stretch-draw, when agent structure does not complete unloading, drag-line is installed and is just substantially looked for shape to complete, and treat that steel work completes unloading, the internal stress of steel truss is redistributed until be finally out of shape, then adjusts Suo Li until reach designing requirement.Structure constraint is bottom curtain wall be fixed bearing with annex connecting place, and umbrella support and main body junction are three-dimensional fixed-hinged support, and umbrella support and steel worm-gearing junction are elastic support; Support additional constraint condition provides additional vertical constraint for structure at all strong points for support jig, comprises and retraining up and down.Bearing installation, can enter first time stretch-draw after connection inspection is errorless.
Stretch-draw time sequencing: primary stretch-draw time, should complete when temporary support structure does not unload, and complete and substantially look for shape, while main joist segmentation is installed, namely the installation of rope barrier lattice is carried out, but not Prestressing, its installation should observe " from bottom to up, from little lattice to large lattice; front and back formed symmetrical synchronous coordination " principle, install drag-line successively, two-layer oblique drag-line is connected and fixed by two-way rope retainer ring, forms the nought state of rope net.
Prestressing force size is determined: analyze stretching rope power as calculated smaller, every Gen Suoliyue 30KN, so little to overall structure deformation effect.First time stretch-draw reaches design prestress value 50%, and second time stretch-draw reaches design prestress value 100%; The first time layering stretch-draw of rope net take 15KN as stretching rope power, successively carries out stretch-draw from bottom to up, in units of district's lattice, carries out stretch-draw, seven layers altogether.15KN Suo Li is the average Suo Li after the whole stretch-draw of rope net completes, and after consideration rope net and cord clip deadweight, each floor rope net and same district Ge Neisuo rete cord power exist certain inhomogeneities.
Generally speaking, first time stretch-draw time with the target Suo Li of 1/3 ~ 2/3 times for the average Suo Li of stretch-draw, in units of district's lattice, first time stretch-draw is carried out in layering from bottom to up, and respectively stretch-draw is carried out to the drag-line of both direction, adopt the construction method that jack tension power controls in stretching process, and stretching process monitored over time is carried out to part drag-line stress.In addition, monitor the distortion at control point in cable curtain wall during stretch-draw, immediately oblique drag-line is adjusted, to guarantee that it meets design requirement.After stretch-draw, measure the shape of cable curtain wall, guarantee that its shape meets design requirement, if do not met design requirement, the length tackling oblique drag-line adjusts comprehensively.
The dismounting of step 10, temporary support structure: the dismounting carrying out support jig after the first time stretch-draw of rope net completes, supports layering and remove in batches, first remove the gusseted of opisthodome, then lobby part pylon is removed in layering from top to bottom.
The second time stretch-draw of step 11, rope net: the average Suo Li being second time stretch-draw with target Suo Li, in units of district's lattice, first time stretch-draw is carried out in layering from bottom to up, and carries out stretch-draw respectively to the drag-line of both direction, now removes support jig.The present embodiment rope net second time layering stretch-draw is stretching rope power with 3t, makes rope rete cord power reach design stretching rope power.Due to rope net and cord clip effect of weight, 3t Suo Li is average Suo Li, and Ge Ji district lattice inner top and the bottom in each district all exist certain Suo Li non-uniform phenomenon.
The integrated regulation of step 12, rope net: integrated regulation checks whole cable net structure, finally mends stretch-draw for not meeting the requirements of local drag-line, and make rope rete cord power reach design stretching rope power, so far, rope net has been constructed.
Rope net install the whole work progress of stretch-draw be mainly divided into first time stretch-draw, remove temporary support structure process, remove temporary support structure after second time stretching process totally three steps, the constructional aspect controlling these three construction stages is the key of whole Construction Course Analysis.Below, the stretching process of the Suo Wangshi in work progress is analyzed:
Adopt finite element software ANSYS, consider the geometrical non-linearity of structure and material nonlinearity, and geometrical large distortion and Stress stiffening effect, based on ANSYS platform and related specifications, the secondary development checking of bearing capacity program of steel beam column and drag-line.For: (1) conducts oneself with dignity: steel density is 7.85 × 103kg/m3; Cord clip weight gets 150N; Do not consider rope net and cord clip Gravitative Loads during force finding, when other is analyzed, count the two deadweight again; (2) pretension: work progress is for carry out stretch-draw at twice, and the pretension of first time stretch-draw is 1.5T, the pretension of second time stretch-draw is 3T; (3) support restraint condition: structure constraint: be fixed bearing with annex connecting place bottom curtain wall, umbrella support and main body junction are three-dimensional fixed-hinged support, and umbrella support and steel worm-gearing junction are elastic support, and vertical rigidity is 40000N/mm; (4) support additional constraint condition: support jig provides additional vertical constraint for structure at all strong points, comprises and retraining up and down; Install at steel structure and rope net, the first time stretch-draw of rope net time there is support additional constraint, complete support removing after first time stretch-draw completes, no longer there is support additional constraint afterwards.
1, first time tension process analysis
The first time layering stretch-draw of rope net take 1.5t as stretching rope power, successively carries out stretch-draw from bottom to up.1.5t Suo Li is the average Suo Li after the whole stretch-draw of rope net completes, and after consideration rope net and cord clip deadweight, each floor rope net and same district Ge Neisuo rete cord power exist uniformity scarcely.After layering stretch-draw rope rete cord power and steel structure equivalent stress as shown in the table:
2, temporary support structure process analysis procedure analysis is removed
The dismounting of support jig is carried out after completing in the first time layering stretch-draw of rope net.Support layering to remove in batches, first remove opisthodome support triangle frame, then be divided into five layers of dismounting lobby part pylon from top to bottom.
Layering carries out support jig dismounting in batches, and rope rete cord power and the change of steel work equivalent stress are as shown in following table and figure below.As can be seen from chart, removing moulding bed affects all less for rope rete cord power and steel work equivalent stress.Remove rope rete cord power and steel structure stress situation after temporary support structure process as shown in table 2 below:
3, rope net second time layering stretch-draw
Rope net second time layering stretch-draw take 3t as stretching rope power, tension sequence is successively stretch-draw from top to bottom, support jig is removed during this time stretch-draw, for finally mending pulling anchor cable stage, rope rete cord power is made to reach design stretching rope power, due to rope net and cord clip effect of weight, 3t Suo Li is average Suo Li, and Ge Ji district lattice inner top and the bottom in each district all exist certain Suo Li non-uniform phenomenon.After second time layering stretch-draw rope rete cord power and steel structure stress situation as shown in table 3 below:
In addition, in stretching process, should be noted that following some:
1, before rope net is installed, set up SURVEYING CONTROL NETWORK, its rule is: phase intercommunication video between each point, can form a closed loop wire; Point position is laid in the place being not affected or less affected by construction infection as far as possible; Point position should get around beam, post etc., in order to avoid upwards pilot measurement time be obstructed.
2, the construction method adopting jack tension power to control in stretching process, and stretching process monitored over time is carried out to part drag-line stress, cable force monitoring equipment adopts portable dynamometer.
3, after stretch-draw, measure the shape of cable curtain wall, guarantee that its shape meets design requirement, if do not met design requirement, the length tackling oblique drag-line adjusts comprehensively.
4, before each stretch-draw and unloading, application finite element software, consider that structure has Double Nonlinear--geometrical non-linearity and material nonlinearity, consider geometrical large distortion and Stress stiffening effect in calculating.
To sum up, the present invention satisfactorily completes the installation work of whole rope net curtain wall, also provides good reference function for running into similar engineering later.
Claims (10)
1. the rope net of a larger decorative curtain wall, be connected on ornamental moulding curtain skeleton (1), described ornamental moulding curtain skeleton (1) is the face of cylinder steel construction curtain wall keel formed by multiple oblique cross one another oval steel pipe (11), agent structure (3) in the middle of face of cylinder steel construction curtain wall keel surround, socket with annex bottom it, by arranging that umbrella shaped support is connected with agent structure on facade, top is connected with roof structure by mast supporting, described oval steel pipe (11) diagonal cross forms shape of a saddle district lattice (12) one by one, it is characterized in that: the rope net of described larger decorative curtain wall comprises the unit rope net (2) be arranged on one by one in shape of a saddle district lattice (12), the tapered end (24) at the drag-line two ends of described unit rope net (2) connects one respectively and turns to otic placode (22), the described otic placode (22) that turns to is welded and fixed with the oval steel pipe (11) surrounding shape of a saddle district lattice, described unit rope net (2) is two-way single rustling sound net, comprises internal layer oblique cord (211) and outer oblique cord (212), and internal layer oblique cord (211) and outer oblique cord (212) are each passed through two-way rope retainer ring (23) to carry out being connected by pull.
2. the rope net of a kind of larger decorative curtain wall according to claim 1, it is characterized in that: the disc of described two-way rope retainer ring (23) is parallel to the wire side setting of unit rope net (2), it is from comprising outer ring (231), core ring (232) and interior side ring (233) outside to inside, described outer ring (231) and core ring (232), carry out bolt between core ring (232) and interior side ring (233) respectively and fix, the one side that wherein outer ring (231) and core ring (232) fasten has the outer oblique cord groove (25) for outer oblique cord; The one side that interior side ring (233) contacts with core ring (232) has the internal layer oblique cord groove (26) passed through for internal layer oblique cord.
3. the rope net of a kind of larger decorative curtain wall according to claim 1, is characterized in that: the outside of described two-way rope retainer ring (23) is also provided with decorating structure (27).
4. the rope net of a kind of larger decorative curtain wall according to claim 3, is characterized in that: described decorating structure (27) is for being fixed on the medallion video disc outside two-way rope retainer ring at the bottom of dish.
5. the method for the installation Tension Forming of the rope net of the larger decorative curtain wall as described in Claims 1 to 4 any one, it is the rope net mounting method carried out based on the ornamental moulding curtain skeleton (1) constructed, it is characterized in that, the rope net of described larger decorative curtain wall is two-way single rope curtain wall system, comprise the unit rope net (2) be arranged on one by one in shape of a saddle district lattice (12), the staged and layered of oval steel pipe (11) is coordinated to install, after the installation of this layer of oval steel pipe (11), the installation of this layer unit rope net (2) can be carried out, successively classification is from bottom to up installed, the Specific construction step of installing is as follows:
Step one, preparation of construction: quality inspection is carried out to the oval steel pipe (11) of the temporary support structure (4) of installation in position and first floor from bottom to top, confirm that the setting of temporary support structure also meets the requirements, oval steel pipe has been constructed in place simultaneously, and the size and shape in its shape of a saddle district lattice (12) formed arranges and all meets designing requirement;
Step 2, select the shape of a saddle district lattice of construction: according to from bottom to top, the order of Ge Hou great district, first community lattice carries out constructing the selection in shape of a saddle district lattice (12);
Step 3, confirm drag-line (21) stretch-draw direction and with oval steel pipe (11) weld site: in conjunction with FEM (finite element) model software analysis confirm drag-line stretch-draw direction and with oval steel pipe weld site, and on oval steel pipe, mark all welding sites;
Step 4, installation zero prestressed outer oblique cord (212): according to the outer oblique cord stretch-draw direction designed in advance, the one Tou Yu district lattice oval steel pipe on one side of outer oblique cord is welded to connect, other end is connected with the oval steel-pipe welding on limit, lattice opposite, district, without prestressing force on outer oblique cord, adjacent outward layer oblique cord perfect parallelism setting and distance controlling between adjacent inner layer oblique cord is reasonable;
Step 5, installation zero prestressed internal layer oblique cord (211): install internal layer oblique cord (211) according to the method for step 4, the drag-line in previous direction intersects to form the rope net of rule with it;
Step 6, fix two-way rope retainer ring (23) at the crosspoint place of internal layer oblique cord (211) and outer oblique cord (212): clamp with two-way rope retainer ring (23) in the point of intersection of internal layer oblique cord (211) and outer oblique cord (212), the drag-line of both direction is clamped together, internal layer oblique cord (211) and outer oblique cord (212) are placed in internal layer oblique cord groove (26) and outer oblique cord groove (25) respectively, make the drag-line of two-way rope retainer ring to retained part not apply power, drag-line can free stretch-draw;
Step 7, carry out the installation in other shape of a saddle districts lattice (12) interior unit rope net (2) of first floor: mounting method to step 6, is all constructed complete to this layer unit rope net with reference to step one;
Step 8, after the segmentation installation of the oval steel pipe (11) of the second layer, carry out the installation of second layer unit rope net (2), after the segmentation installation of the oval steel pipe (11) of third layer, carry out the installation of third layer unit rope net (2), mounting method reference step one is to step 6, successively carry out from top to bottom, carry out the construction of higher position by temporary support structure, the unit rope net to all shape of a saddle districts lattice is all constructed complete;
The first time stretch-draw of step 9, rope net: the average Suo Li being first time stretch-draw with the target Suo Li of 1/3 ~ 2/3 times, in units of a shape of a saddle district lattice, first time stretch-draw is carried out in layering from bottom to up, and carries out stretch-draw respectively to the drag-line of both direction;
The dismounting of step 10, temporary support structure: carry out after the first time stretch-draw of rope net completes, removes temporary structure and supports;
The second time stretch-draw of step 11, rope net: the average Suo Li being second time stretch-draw with target Suo Li, in units of a shape of a saddle district lattice, second time stretch-draw is carried out in layering from top to bottom, and carries out stretch-draw respectively to the drag-line of both direction;
The integrated regulation of step 12, rope net: integrated regulation checks whole cable net structure, finally mends stretch-draw for not meeting the requirements of local drag-line, and make rope rete cord power reach design stretching rope power, so far, rope net has been constructed.
6. the method for the installation Tension Forming of the rope net of a kind of larger decorative curtain wall according to claim 5, it is characterized in that: described oval steel pipe (11) is divided into two-tube truss in the front office division of curtain wall, opisthodome part is single steel pipe, and the unit rope net of lobby is arranged in the shape of a saddle district lattice of that root steel pipe formation in the outer part; The unit rope net of opisthodome is arranged between single steel pipe.
7. the method for the installation Tension Forming of the rope net of a kind of larger decorative curtain wall according to claim 5, is characterized in that: in described step 4 and step 5, the concrete installation of drag-line comprises the following steps:
(1) measurement and positioning: utilize total powerstation to project on oval steel pipe (11) by the precalculated position of otic placode (22) that turns to;
(2) on oval steel pipe (11), paint the welding position turning to otic placode (22) of mark drag-line one end;
(3) corresponding marked turn to the otic placode position mark drag-line other end turn to otic placode (22) anchoring position;
(4) correspondence position of painting mark on oval steel pipe is fixed welding and is turned to otic placode (22);
(5) drag-line is installed: by drag-line through the connecting hole turned on otic placode (22), the rope head (24) of drag-line is connected with turning to otic placode (22).
8. the method for the installation Tension Forming of the rope net of a kind of larger decorative curtain wall according to claim 5, is characterized in that: the temporary support structure (4) in described step one, step 8 and step 10 comprises pylon (41) and the opisthodome partial fixing gusseted on the body construction (42) of lobby part.
9. the method for the installation Tension Forming of the rope net of a kind of larger decorative curtain wall according to claim 5, is characterized in that: in described step 6, installs decorating structure (27) in the outside of the outermost outer ring of two-way rope retainer ring (23).
10. the method for the installation Tension Forming of the rope net of a kind of larger decorative curtain wall according to claim 9, is characterized in that: described decorating structure (27) is for being fixed on the medallion video disc outside two-way rope retainer ring at the bottom of dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598272.6A CN104278779B (en) | 2014-10-31 | 2014-10-31 | The rope net of a kind of larger decorative curtain wall and the method for installation Tension Forming thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598272.6A CN104278779B (en) | 2014-10-31 | 2014-10-31 | The rope net of a kind of larger decorative curtain wall and the method for installation Tension Forming thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104278779A true CN104278779A (en) | 2015-01-14 |
| CN104278779B CN104278779B (en) | 2016-08-31 |
Family
ID=52254081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410598272.6A Expired - Fee Related CN104278779B (en) | 2014-10-31 | 2014-10-31 | The rope net of a kind of larger decorative curtain wall and the method for installation Tension Forming thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104278779B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107357954A (en) * | 2017-06-06 | 2017-11-17 | 西安电子科技大学 | A kind of knitted wire mesh mechanical characteristic analysis based on FInite Element |
| CN107700852A (en) * | 2017-09-12 | 2018-02-16 | 湖南建工集团装饰工程有限公司 | Drag-line and frame structure combination process construction technology in a kind of curtain wall construction |
| CN112227570A (en) * | 2020-09-22 | 2021-01-15 | 北京江河幕墙系统工程有限公司 | Precise tensioning process for ultra-long vertical cable of cable net curtain wall |
| CN112324150A (en) * | 2020-10-15 | 2021-02-05 | 广东省建筑设计研究院有限公司 | Single-layer saddle-shaped cable net tensioning construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3936634B2 (en) * | 2002-07-05 | 2007-06-27 | Ｙｋｋ Ａｐ株式会社 | Tension truss structure and curtain wall |
| CN2923866Y (en) * | 2006-07-15 | 2007-07-18 | 白宝鲲 | Grib-arm telescopic permitted of point-supported curtain wall |
| CN103216105A (en) * | 2013-04-18 | 2013-07-24 | 成军 | Construction method of overhanging inhaul cable type hyperbolic glass curtain wall |
| KR101373003B1 (en) * | 2012-05-31 | 2014-03-13 | 하나산업 주식회사 | Tension adjusting apparatus for wire |
| CN204311622U (en) * | 2014-10-31 | 2015-05-06 | 中国建筑第二工程局有限公司 | A kind of shape of a saddle prestressed cable net |
-
2014
- 2014-10-31 CN CN201410598272.6A patent/CN104278779B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3936634B2 (en) * | 2002-07-05 | 2007-06-27 | Ｙｋｋ Ａｐ株式会社 | Tension truss structure and curtain wall |
| CN2923866Y (en) * | 2006-07-15 | 2007-07-18 | 白宝鲲 | Grib-arm telescopic permitted of point-supported curtain wall |
| KR101373003B1 (en) * | 2012-05-31 | 2014-03-13 | 하나산업 주식회사 | Tension adjusting apparatus for wire |
| CN103216105A (en) * | 2013-04-18 | 2013-07-24 | 成军 | Construction method of overhanging inhaul cable type hyperbolic glass curtain wall |
| CN204311622U (en) * | 2014-10-31 | 2015-05-06 | 中国建筑第二工程局有限公司 | A kind of shape of a saddle prestressed cable net |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107357954A (en) * | 2017-06-06 | 2017-11-17 | 西安电子科技大学 | A kind of knitted wire mesh mechanical characteristic analysis based on FInite Element |
| CN107700852A (en) * | 2017-09-12 | 2018-02-16 | 湖南建工集团装饰工程有限公司 | Drag-line and frame structure combination process construction technology in a kind of curtain wall construction |
| CN112227570A (en) * | 2020-09-22 | 2021-01-15 | 北京江河幕墙系统工程有限公司 | Precise tensioning process for ultra-long vertical cable of cable net curtain wall |
| CN112227570B (en) * | 2020-09-22 | 2021-10-08 | 北京江河幕墙系统工程有限公司 | Precise tensioning process for ultra-long vertical cable of cable net curtain wall |
| CN112324150A (en) * | 2020-10-15 | 2021-02-05 | 广东省建筑设计研究院有限公司 | Single-layer saddle-shaped cable net tensioning construction method |
| CN112324150B (en) * | 2020-10-15 | 2022-08-19 | 广东省建筑设计研究院有限公司 | Single-layer saddle-shaped cable net tensioning construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104278779B (en) | 2016-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105569358A (en) | Construction method of special-shaped curved surface roof with large span and multiple curvatures | |
| CN105926448B (en) | A kind of construction method of the Cable stayed Bridge Main Tower in the double rope faces of the only tower of curve | |
| CN104074358B (en) | The construction method of prefabricated building | |
| CN102660996B (en) | Multilevel multi-curve single-layer welding ball steel structure net rack and construction method thereof | |
| CN109138446A (en) | A kind of Node In Large-span Pipe Truss hanging method | |
| CN114086669B (en) | Modularized rapid construction method for large-scale space special-shaped curved surface steel net rack | |
| CN103615064B (en) | A kind of Cable dome and installation method thereof | |
| CN104278779B (en) | The rope net of a kind of larger decorative curtain wall and the method for installation Tension Forming thereof | |
| CN104453248B (en) | Complex irregular-shaped multi-layer net rack construction method based on layered modular assembling technology | |
| CN101100902A (en) | Inclined drawing steel truss high-supported formwork structure system and construction method thereof | |
| CN205558304U (en) | Hoist and mount system of large -scale steel gallery truss | |
| CN105926765B (en) | The regular polygon of falling umbrella steel structure module and its installation method | |
| CN101451378A (en) | 'Drip shaped' radial monolayer steel pipe reticulated shell block and installation method | |
| CN109235902A (en) | Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude dissipates splicing method | |
| CN104695715A (en) | Construction method of beam string structure of roof | |
| CN103938875A (en) | Ground single body tensioning lifting construction method of single layer suspendome | |
| CN204311622U (en) | A kind of shape of a saddle prestressed cable net | |
| CN109138452A (en) | Heavy construction bolt sphere steel pipe rack entirety fast lifting construction technology | |
| CN113356597A (en) | Lifting process of large-span net rack and truss combined roof | |
| CN109763568B (en) | Suspended dome grid structure construction method | |
| CN110409837A (en) | A kind of large-span double-layer steel screen roof system sub-unit construction method for hanging | |
| CN104878867A (en) | Ceiling joist and double-layer construction platform integrated structure and manufacturing method thereof | |
| CN106544959B (en) | The construction method of king-tower lifting segment and bridge main tower saddle containing saddle | |
| CN107152084A (en) | One kind lifting self-forming GFRP latticed shell structures and its construction method | |
| CN114525877A (en) | Stadium combined roof based on large-cantilever inclined triangular truss and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160831 Termination date: 20161031 |