CN204311622U - A kind of shape of a saddle prestressed cable net - Google Patents

Abstract

A kind of shape of a saddle prestressed cable net, be connected on ornamental moulding curtain skeleton, described ornamental moulding Curtain wall frame 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, oval steel pipe diagonal cross forms saddle-shaped district lattice one by one, shape of a saddle prestressed cable net is be arranged on the rope net in shape of a saddle district lattice, the tapered end at its two ends connects one respectively and turns to otic placode, turns to otic placode to be welded and fixed with the oval steel tubing portions surrounding shape of a saddle district lattice; Shape of a saddle prestressed cable net is two-way single rustling sound net, comprises internal layer oblique cord and outer oblique cord, is undertaken connecting by pull between the drag-line of both direction at crosspoint place by bidirectional cable fixture.The utility model structure is simple, convenient construction and Tension Forming, solves the problem that moulding is difficult, complex structure is not easy to installation and Tension Forming of specific moulding curtain skeleton rope net, for Sinilar engineering provides effective reference.

Description

A kind of shape of a saddle prestressed cable net

Technical field

The utility model relates to construction techniques field, particularly a kind of prestressed cable net be applicable in the shape of a saddle district lattice of cylinder steel construction curtain wall keel.

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 utility model 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 wall frame 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 saddle-shaped district lattice one by one.

, baroque ornamental moulding curtain skeleton unique for above-mentioned moulding carries out the shape-designing of rope net, on the one hand because the prestressing force required in rope net is larger, 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, and large with the Cable Structure difference of general roof system and curtain wall, referential Engineering Projects is few, and the specification of shape of a saddle prestressed cable net construction in prior art and guiding material shortage.Therefore, high to the modeling requirement of rope net, existing cable net structure is complicated, is not easy to the ornamental moulding curtain skeleton of this kind of moulding complexity, is not easy to install and Tension Forming.

Utility model content

The utility model object is to provide a kind of shape of a saddle prestressed cable net, the technical barrier solving the modeling requirement of cylinder steel construction curtain wall keel to rope net high, existing cable net structure complexity, be not easy to the ornamental moulding curtain skeleton of this kind of moulding complexity, be not easy to installation and Tension Forming, for Sinilar engineering case is offered reference.

For realizing above-mentioned technical purpose, the technical scheme that the utility model is taked is as follows:

A kind of shape of a saddle prestressed cable net, 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: described shape of a saddle prestressed cable net 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.

Further, described decorating structure is be fixed on the medallion video disc outside two-way rope retainer ring at the bottom of dish.

Preferred, 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.

Compared with prior art, technical advantage of the present utility model is: the utility model structure is simple, the design of unit rope net greatly facilitates construction, according to the separation of oval steel tube framework, rope net fitting limit is divided into multilayer during construction 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; Convenient construction and Tension Forming, solve the problem that moulding is difficult, complex structure is not easy to installation and Tension Forming of specific moulding curtain skeleton rope net, for Sinilar engineering provides effective reference.

Accompanying drawing explanation

Fig. 1 is the structural representation of the cylinder steel construction curtain wall keel of the oval steel pipe formation that the utility model relates to;

Figure 21-23 is the installation process schematic diagrames of the unit rope net 2 that the utility model relates to;

Fig. 3 is the scheme of installation of the drag-line 2 that the present invention relates to;

Fig. 4 is the mounting structure schematic diagram of the two-way rope retainer ring 23 that the present invention relates to;

Fig. 5 is the fractionation structural representation of the two-way rope retainer ring 23 that the present invention relates to;

Fig. 6 is the layout schematic diagram of the temporary support structure 4 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, 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. 1, 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, is made up of moulding main joist, umbrella support, mast supporting, shape of a saddle prestressed cable net 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 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.Shape of a saddle prestressed cable net 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 adopts compacting ground tackle, fork ear formula connector and two ends adjustable.Rope head 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 this shape of a saddle prestressed cable web frame.

Described unit rope net 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 carry out with oval steel pipe, and successively classification is from bottom to up installed, and 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, lobby part for supporting the pylon of outer keel and opisthodome part for supporting the layout of the gusseted of outer keel, as Fig. 6; 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 utility model 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. 3 and Figure 21, 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 inner layer oblique cord perfect parallelism setting and distance controlling between adjacent outward 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 of drag-line is connected with turning to otic placode 22.

Step 5, installation zero prestressed internal layer oblique cord 211: as Figure 22, 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: as Figure 23, 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 4 and Figure 5, the card of two-way rope retainer ring 23 is parallel to the wire side setting of unit rope net, 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 being 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, being fixed on the decoration video disc of the redness outside dual floppy disk fixture in the present embodiment for trying to get to the heart of a matter.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 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, after the segmentation installation of the oval steel pipe 11 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, 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 following table.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 utility model satisfactorily completes the installation work of whole rope net curtain wall, also provides good reference function for running into similar engineering later.

Claims (5)

1. a shape of a saddle prestressed cable net, 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: described shape of a saddle prestressed cable net comprises the unit rope net 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 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 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. a kind of shape of a saddle prestressed cable net 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, 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. a kind of shape of a saddle prestressed cable net 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. a kind of shape of a saddle prestressed cable net 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. a kind of shape of a saddle prestressed cable net according to claim 1, 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.