CN103615110B - Random oblique netted nine-squares beam Hyperbolic Roof construction method - Google Patents
Random oblique netted nine-squares beam Hyperbolic Roof construction method Download PDFInfo
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- CN103615110B CN103615110B CN201310367409.2A CN201310367409A CN103615110B CN 103615110 B CN103615110 B CN 103615110B CN 201310367409 A CN201310367409 A CN 201310367409A CN 103615110 B CN103615110 B CN 103615110B
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Abstract
A kind of random oblique netted nine-squares beam Hyperbolic Roof construction method, step is: secondary conversion, the surveying and locating nine-squares beam floor projection axis of preparation of construction, design drawing, set up steel tube fastener full hall scaffold support system, release the absolute altitude of stupefied wooden lower support cross bar at the bottom of nine-squares beam beam, on support rail the stupefied wood of colligation and lay base plate, measure release roof girder position, processing colligation nine-squares beam reinforcing bar, nine-squares beam lattice side form install and reinforce, install and reinforce nine-squares beam top board, slab reinforcement colligation, double curved surface roofing concrete placings.The present invention is by 3 d space coordinate technology, reasonably support system and the accurate location to double curved surface roofing and nine-squares beam, and optimised coagulation soil match ratio, can improve quality and the aesthetics of double curved surface roofing, and reduce difficulty of construction, improve efficiency of construction.
Description
Technical field
The present invention relates to a kind of random oblique netted nine-squares beam Hyperbolic Roof construction method, be applicable to the construction of random oblique netted nine-squares beam double curved surface roofing structure, be also applicable to the construction of the reinforced concrete structure roofing as slope, arc moulding.
Background technology
Along with the raising of people's aesthetical standard, modern design, unique arcuate building structural element have been not limited to plane structure system, but under the prerequisite meeting using function, have been developed by plane structure system to space structure system.The particularly appearance of hyperboloid structure, the perfection for art of building plays and provides wide prospect.Hyperboloid Mechanical Builds is novel, attractive in appearance, be applicable to the large roof structure of span.
Improving constantly in recent years along with people's living standard, the requirement of people to building is also more and more higher, not only only be satisfied with its using function, also more and more higher to the requirement of whole building Space, the auditorium of large space, exhibition room, conference room are more and more subject to the favor of building designers, all the time, nine-squares beam structure, with its rational loading characteristic and unique structural configuration mode, obtains applying comparatively widely in industrial, civilian and some public buildings.
Nine-squares beam structure belongs to grillage, for reinforced concrete well word girder construction, due to beam slab monobloc cast, respectively arrange there is no dividing of primary and secondary to beam, therefore, compared with arranging with other general structure, following distinguishing feature is had: (1) is each to beam collaborative work, shared and distribution floor load, have good space overall performance.(2) than general beam and slab structure, there is larger span-depth radio, limit and the architectural building needing again large span for by floor height, there is applicability widely.(3) owing to decreasing height and the deadweight of structure, beam section is also less than the primary and secondary beam in general beam and slab structure, has significant economic benefit.Difficult point is: nine-squares beam working load is uneven, beam, plate model hard loading gap are large, support system unbalance stress, and the structure position that can socket with support system is less, therefore the stability requirement of nine-squares beam form bracing system is high, needs the rigidity strengthening support system self in construction.
Summary of the invention
The object of the invention is for above-mentioned reinforced concrete well word beam structure construction difficult point, a kind of random oblique netted nine-squares beam Hyperbolic Roof construction method is provided, by 3 d space coordinate technology, reasonably support system and the accurate location to double curved surface roofing and nine-squares beam, optimised coagulation soil match ratio, improve quality and the aesthetics of double curved surface roofing, and reduce difficulty of construction, improve efficiency of construction.
The present invention realizes the technical scheme that above-mentioned purpose takes: a kind of random oblique netted nine-squares beam Hyperbolic Roof construction method, comprises the following steps:
(1) preparation of construction: get out design drawing, equipment and instrument and constructional materials;
(2) secondary conversion of design drawing: utilize CASS Become the picture software to carry out secondary detailingi to roofing beam slab CAD electronic edition drawing, proposes roofing beam slab and the projection three-dimensional coordinate on ground thereof;
(3) surveying and locating nine-squares beam floor projection axis: by AutoCAD and space measurement setting-out technique, according to the projection three-dimensional graph paper of roofing beam slab on ground of secondary detailingi, on terrace bed course, measuring goes out nine-squares beam Axis Cross point floor projection coordinate point, releases nine-squares beam floor projection axis according to nine-squares beam Axis Cross point floor projection coordinate point;
(4) steel tube fastener full hall scaffold support system is set up: the vertical rod of full hall scaffold is arranged on the crosspoint of nine-squares beam floor projection axis, and bottom of upright rod arranges base and backing plate; In vertical rod apart from ground 180-220mm eminence, to sweep the floor bar along horizontal direction in length and breadth by the programming in vertical bottom rail, rod end is along vertical horizontally set top girt; Outside full hall scaffold, border arranges vertical bridging continuously from the bottom to top, and arranges horizontal cross brace, at the word diagonal braces vertically arranged between bridging continuously to adjacent two in length and breadth on bottom, the top and bar of sweeping the floor of vertical bridging continuously;
(5) absolute altitude of the support rail under stupefied wood at the bottom of nine-squares beam beam is released: according to hyperboloid nine-squares beam Beam Elevation figure, calculate the absolute altitude of support rail; With level gauge the absolute altitude measuring of support rail in vertical rod, the vertical rod electric welding machine exceeding beam bottom mother plate part blows;
(6) the stupefied wood of colligation, laying beam bottom mother plate on support rail: tie up stupefied wood on support rail, stupefied wood ties up into the arch of distortion according to support rail iron wire; Be paved with after stupefied wood from roofing both sides toward middle spliced girder soffit formwork;
(7) measure releasing roof girder position: the nine-squares beam position coordinates produced according to designing requirement and CAD 3D model, snap the line is located in beam bottom mother plate face, determines plan-position and the bulk of nine-squares beam; On beam bottom mother plate, measuring goes out nine-squares beam axis, then draws beam sideline;
(8) process colligation nine-squares beam reinforcing bar: the setting-out of nine-squares beam reinforcing bar computer, blanking is processed, and presses center line colligation nine-squares beam reinforcing bar at the bottom of nine-squares beam beam;
(9) each side form of nine-squares beam is installed and is reinforced: utilize AutoCAD software to carry out side form setting-out, be then unified in processing space and be processed into nine-squares beam side form square frame; Put at nine-squares beam reinforcing bar the nine-squares beam side form square frame that processes and reinforce;
(10) install and reinforce nine-squares beam top board;
(11) slab reinforcement colligation: on slab reinforcement and nine-squares beam, muscle is positioned at same layer and is pressed on nine-squares beam under muscle, and firm with nine-squares beam reinforcing bar binding; After slab reinforcement colligation, between each nine-squares beam top board and slab reinforcement, add cushion block;
(12) double curved surface roofing concrete placings: build by isohypse division casting area zonal cooling and carry out, nine-squares beam is hoisted by lower and carries out stratified continuous pouring vibration compacting, last layer concrete is built before next layer concrete initial set, topmost one deck is built together with plate concrete, does not stay horizontal construction joint.
In described step (4), also have additional a vertical rod at the line mid point of adjacent two nine-squares beam floor projection Axis Cross points.
In described step (4), the spacing of sweeping the floor between bar and top girt is distributed equally, thus after determining step pitch, at the vertical horizontally set girt at each step pitch place.
In described step (4), the spreading of vertical rod adopts and carries out clasp connected mode.
The beneficial effect that the present invention can obtain is as follows:
(1) adopt the intellectuality of CASS Become the picture software to extract the three-dimensional coordinate of nine-squares beam compared with traditional artificial calculating, increase work efficiency, save the construction period more than 8%, thus reduce construction cost.
(2) random nine-squares beam reinforcing bar and nine-squares beam grid template first adopt computer setting-out, reproduce field processing and fabricating, avoid the field measurement actual quantities operation that this road of manufacture and installation is loaded down with trivial details again, accelerate efficiency of construction, save the construction period more than 4%, cost saving.
(3) situ wet workload is little, and airborne dust, noise, road are dropped, sewage pollution is little, and on-the-spot cleaning amount is little.
(4) do not have any impact to environment in operating process, computer setting-out, reduces number of times of doing over again, and saves material, reduces building waste.
(5) by 3 d space coordinate technology, reasonably support system and the accurate location to double curved surface roofing and nine-squares beam, optimised coagulation soil match ratio, thus reach designing requirement, actual measurement shows, random nine-squares beam double curved surface roofing is without common quality defect, surface curve is smooth, beautiful design, achieves design idea and content with funtion and quality requirement.
Accompanying drawing explanation
Fig. 1 is the process chart of random oblique of the present invention netted nine-squares beam Hyperbolic Roof construction method.
Fig. 2 is ground axial grid of the present invention and intersection point elevation schematic diagram.
Fig. 3 is of the present invention according to supported rod erecting top mark height curved surface schematic diagram at the bottom of axis grid intersection point elevation generation nine-squares beam beam.
Fig. 4 is of the present invention according to nine-squares beam axis and supported rod erecting top mark height curved surface, extracts nine-squares beam crossing point of axes place curved surface elevation, the schematic diagram that namely top mark of support shuttering vertical rod is high.
Fig. 5 is X, the Y-coordinate figure of nine-squares beam crossing point of axes of the present invention.
Fig. 6 is the Z coordinate diagram of nine-squares beam crossing point of axes of the present invention.
Fig. 7 is bridging arrangement diagram of the present invention.
Fig. 8 is beam bottom mother plate of the present invention and side form supporting figure.
Fig. 9 is roofing concrete placings isohypse division figure of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
As shown in Figure 1, a kind of random oblique netted nine-squares beam Hyperbolic Roof construction method, carries out according to following concrete steps:
One, preparation of construction
1, according to design drawing and related specifications requirement, the special scheme that establishment is relevant is also organized and is expounded through peer review.
2, because random oblique netted nine-squares beam double curved surface roofing surveying and locating difficulty is large, accuracy is high, the mapping company needing certain qualification specialty carries out space setting-out to roofing beam slab, therefore will select to determine credit worthiness before construction, public praise surveys and draws company preferably.
3, the design of foundation mounts will meet the requirement of bearing capacity, plans consolidation, carries out the construction of curved surface roof structure after terrace concrete bed course of first constructing again.
4, main plant instrument: bar cropper 2, angle-bender 2, bar straightener 2, die head threading machine 1, 30KWA A.C. welder 2 ~ 4, Φ 500mm carpenter disk electric saw 2, Portable electric saw 8, 2, bangle cucurbit, planer surfacer 1, nail hammer, Churn drill (joining drill hammer and wood drill head), invar tape, spirit level, messenger wire hangs down, portable ladder, total powerstation 1, 1, transit, level gauge 1, 1, tower crane, flat concrete vibrator 2, insert concrete vibrator 10, concrete mixing station 1 overlaps, concrete transfer pump 2 ~ 4 overlaps.
5, material prepares: 48 × 3.5 steel pipes (fastener is supporting), 50 × 100 × 4000mm lumps of wood, 1830 × 915 × 15mm veneer,
split bolt, Φ 14 reinforcing bar liner, interleaving agent, retarding agent, No. 14 galvanized wires, 5cm iron nail, sand, stone, cement, reinforcing bars.
Two, the secondary conversion of design drawing
By the mapping company of specialty, utilize CASS Become the picture software to carry out secondary detailingi to roofing beam slab CAD electronic edition drawing, propose roofing beam slab and the projection three-dimensional coordinate on ground thereof, for next step space measurement setting-out is prepared.
1, as shown in Figure 2, ground axial grid and intersection point elevation are proposed.
2, as shown in Figure 3, supported rod erecting top mark height curved surface at the bottom of nine-squares beam beam is generated according to axis grid intersection point elevation.
3, nine-squares beam axis is introduced.
4, as shown in Figure 4, according to nine-squares beam axis and supported rod erecting top mark height curved surface, extract nine-squares beam crossing point of axes place curved surface elevation, namely the top mark of support shuttering vertical rod is high.
5, as shown in Figure 5 and Figure 6, CASS software automatically generates nine-squares beam axis and to tell somebody what one's real intentions are three-dimensional coordinate, and wherein Fig. 5 is nine-squares beam crossing point of axes X, Y-coordinate figure, Fig. 6 be nine-squares beam crossing point of axes Z elevation map.
Three, surveying and locating nine-squares beam floor projection axis
Survey technology is put by AutoCAD and space, the projection three-dimensional graph paper of roofing beam slab on ground of design is related to according to secondary in-depth, on terrace bed course, measuring goes out nine-squares beam Axis Cross point floor projection coordinate point, releases nine-squares beam floor projection axis according to nine-squares beam Axis Cross point floor projection coordinate point.
Four, steel tube fastener full hall scaffold support system is set up
1, because the absolute altitude of double curved surface roofing is mainly controlled by vertical rod, for the ease of the control of double curved surface roofing absolute altitude, full hall frame vertical rod is arranged on the crosspoint of nine-squares beam floor projection axis; The distance L (1000mm<L<1500mm) of roofing irregular nine-squares beam floor projection axis; In order to meet support system and force request, between irregular nine-squares beam floor projection axis, adding a vertical rod and the spacing between vertical rod and vertical rod for being greater than 500mm, being less than 750mm; Support system horizon bar step pitch is 900mm.
2, should arrange base and backing plate bottom every root steel tube poles, backing plate width cloth is less than 200*200, and plate thickness must not be less than 50mm.In vertical rod apart from ground 200mm eminence, bar of sweeping the floor should be established by the program in vertical bottom rail in edge in length and breadth horizontal direction.Rod end should along vertical horizontally set one girt.The spacing of sweeping the floor between bar and top girt, meeting under stencil design determined girt stride requirements condition, is distributed equally after determining step pitch, at each step pitch place in length and breadth to should respectively establish one girt.Pushing up most, step pitch two girt is middle should add one girt.
3, as shown in Figure 7, bridging should establish vertical setting continuously from the bottom to top in border, outside; Middle in length and breadth to the bridging should establishing vertical continous way from the bottom to top every about 10m, its width is preferably 4 ~ 6m, and arranges horizontal cross brace at the top at bridging position, bar place of sweeping the floor; Also in length and breadth to the word diagonal brace increased between adjacent two vertical continous way bridgings, at the position having horizontal cross brace, should should increase by one horizontal cross brace in each bridging middle.Vertical bridging was arranged to top continuously the end of by, and bridging rod member bottom and ground hold out against, and angle is 45 °.
4, vertical rod spreading forbids overlap joint, must adopt and connect clasp, and the banjo fixing butt jointing of adjacent two vertical rods must not in synchronous, and the distance that banjo fixing butt jointing vertically staggers should not be less than 500mm, and each connector center should not be greater than 1/3 of step pitch apart from host node.
5, forbid the steel tube poles of epimere and hypomere steel tube poles to stagger to be fixed on girt.
Five, the absolute altitude of the support rail under stupefied wood at the bottom of nine-squares beam beam is released
According to hyperboloid nine-squares beam Beam Elevation figure, calculate the absolute altitude of support rail; With level gauge the absolute altitude measuring of support rail on steel tube poles, the vertical rod electric welding machine exceeding beam bottom mother plate part blows.
Six, the stupefied wood of colligation, laying beam bottom mother plate on support rail
Support rail is tied up stupefied wood, and stupefied wood ties up into the arch of distortion according to support rail iron wire, and stupefied wood first steps up with step fastener, then uses iron wire tighten; Be paved with after stupefied wood from roofing both sides toward middle spliced girder soffit formwork.The supporting figure of beam bottom mother plate as shown in Figure 8, on steel tube poles 6, tie up on support rail 5 by base plate stupefied wooden 7, and beam bottom mother plate 4 is assembled on base plate stupefied wooden 7 by the absolute altitude of support rail 5.
Seven, releasing roof girder position is measured
According to the nine-squares beam position coordinates that designing requirement and CAD 3D model are produced, snap the line is located in beam bottom mother plate face, determines plan-position and the bulk of nine-squares beam; On beam bottom mother plate, measuring goes out nine-squares beam axis, then draws beam sideline.
Eight, colligation nine-squares beam reinforcing bar is processed
1, technological process: nine-squares beam reinforcing bar computer setting-out → blanking processing → on-the-spot colligation → concealment acceptance.
2, nine-squares beam is short in direction beam steel bar colligation.By the long Simple support frame setting up a beam muscle of the every 5m in beam sideline, bracing frame is put beam gluten, then wears cloth beam stirrup and be tied on beam first row gluten, then wear muscle at the bottom of cloth beam and carry out colligation.Short in beam overall binding order: first tie up one that centre is the highest, then it to be short in beam to carry out colligation successively toward both sides lower.Often tie up out a short Yi Tiaoliang adjacent with eminence immediately across beam to carry out " face drawknot ", namely with the reinforcing bar drag hook of 1 Φ 14 by the spacing of 4m by the gluten drawknot of two beams in case beam is toppled over towards lower.
3, nine-squares beam long span direction beam steel bar colligation, long span direction roof beam structure in short across on the beam of direction.First by beam sideline short across beam gluten between wear cloth long span beam gluten, then wear cloth beam stirrup and be tied on beam first row gluten, then wear muscle at the bottom of cloth beam and carry out colligation.
4, nine-squares beam waist muscle carries out wearing cloth colligation from lower to upper.
5, nine-squares beam drag hook colligation.
Nine, each side form of nine-squares beam is installed and is reinforced
Adopt CAD 3D modeling, generate nine-squares beam threedimensional model.Calculate space coordinates and each side form size of nine-squares beam of nine-squares beam each point according to model, and with regard to beam lattice side form numbering, be then unified in processing space and be processed into nine-squares beam side form square frame; The stupefied wooden spacing 200mm of each side form of nine-squares beam, stupefied 2 400 of wooden a tree, used in making timber for boats master, split bolt spacing 400 × 450mm, every root split bolt limit is tied up a Φ 14 reinforcing bar liner to ensure beam width.Put at nine-squares beam reinforcing bar the nine-squares beam side form square frame that processes and reinforce; As shown in Figure 8, at the bottom of the beam of side form body of wall, times stupefied 8 to be arranged on beam bottom mother plate 4 and to be fixed by wooden a tree, used in making timber for boats 2 and screw rod through walls 3 the supporting figure of side form, and top board veneer 1 is by 9 being fixed at the bottom of beam on times stupefied 8 at the bottom of plate.
Ten, install and reinforce nine-squares beam top board
11, slab reinforcement colligation
After nine-squares beam mounting of roof plate completes, colligation double curved surface roofing slab muscle can be started.Now, nine-squares beam reinforcing bar colligation completes, only the remaining slab reinforcement imported in the middle of nine-squares beam.Slab reinforcement should be positioned at same layer with muscle on nine-squares beam, and firm with nine-squares beam reinforcing bar binding.For ensureing the effective force of power, slab reinforcement will to be pressed on nine-squares beam under muscle.
After roof panel reinforcing bar binding, between each nine-squares beam top board and roofing slab reinforcement, add cushion block; Roof panel bears that muscle is put by designing requirement, colligation is good, and at the bottom of plate, muscle and plate are born and arranged split heads by spacing 500mm between muscle and colligation is good.
12, double curved surface roofing concrete placings
1, before disturbing concrete, foreign material in cleaning template, rinse moistening template with water, have copied horizontal elevation mark.Put up construction passage, be familiar with the concrete placings route etc. that section chief specifies and confide a technological secret.
2, as shown in Figure 9, nine-squares beam roofing concrete placings should adopt pumping of concrete, divide casting area zonal cooling by isohypse (absolute altitude relative to ± 0.00) during concrete placings to build and carry out, the every 800mm discrepancy in elevation in thing both sides divides a casting area, nine-squares beam carries out stratified continuous pouring vibration compacting by the hoist order of (namely by east, west → centre) of lower, last layer concrete must be built before next layer concrete initial set, topmost one deck is built together with plate concrete, does not stay horizontal construction joint.
LIFT height should according to design feature, reinforcing bar density determine, be generally 1.25 times of vibrator agency part length, maximum must not more than 50cm.Each casting area primary concreting.
3, concrete slump: 110 ~ 130mm.Slump strictly should be pressed coordination in works and be controlled.
4, build concrete should carry out continuously, the initial setting time is slightly long; Because difficulty of construction is large, segmentation builds that seam between two sections of concretes is longer, constuction joint area is comparatively large, and concrete need add retarding agent.
5, concrete pouring vibrating method.Use poker vibrator to insert soon to pull out slowly, slotting point is evenly distributed, pointwise is moved, order is carried out, must not omit, accomplish even jolt ramming, moving interval is not more than 1.5 times (being generally 30-40cm) of the operating radius that vibrates, vibrate last layer time should insert lower floor 5cm, to eliminate the seam of two interlayers.The moving interval of surface vibrator (or claiming plate vibrator), the flat board that can ensure vibrator to cover the part edge that shaken.
6, the level of flooring concrete and the control of planeness
(1) level of flooring concrete controls to adopt bar dowel stake to control, and bar dowel Ф 162000 is arranged in length and breadth, L=thickness of slab, and absolute altitude controls reinforcing bar and beam slab muscle firm welding.
(2) flooring planeness controls after concrete tamping, and adopt the long iron roller of 6m to even up, and then catch up with flat with 3m long chi a tree, used in making timber for boats, light is received in iron plate compacting.
7, concreting is complete should be in good time surperficial by wood float mill pressure, in case produce shrinkage crack; Jolt ramming forbids constructor to walk above after rubbing with the hands and putting down before final set.
13, concrete curing, form removal
1, concrete curing
Concrete maintenance and form removal are identical with conventional, and summer should adopt water seasoning, and winter can first covered with plastic film, then carries out covering and heat insulating water-preserving curing with gunnysack and straw screen or mat.This engineered cementitious adopts portland cement, and the concrete casting water curing time is not less than 7d; The concrete curing time of Mixed With Admixture is not less than 14d.As temperature on average lower than 5 DEG C time, must not water seasoning be taked.
2, concrete form removal
(1), after concrete structure pouring, some strength is reached, can form removal.On the template dismounting date, the intensity that should reach by design feature and concrete is determined, concrete strength is main to be determined according to the pressure testing result with condition test specimen.
(2) required concrete strength during cast-in-place structural form removal
(3) form removal order: beam bottom mother plate → nine-squares beam side form → nine-squares beam top board.
(4), during form removal, concrete strength must reach table requirement of strength and can remove.Follow during form removable first to prop up and tear open afterwards, rear principle of first tearing open, prevents template and hard object from colliding, and forbids with crowbar sled and beats with sledgehammer.
(5) template pulled down and annex answer on-call maintenance to maintain, and clean out brush oil or release agent, and the neat stacking of classification.
Claims (4)
1. a random oblique netted nine-squares beam Hyperbolic Roof construction method, is characterized in that, comprise the following steps:
(1) preparation of construction: get out design drawing, equipment and instrument and constructional materials;
(2) secondary conversion of design drawing: utilize CASS Become the picture software to carry out secondary detailingi to roofing beam slab CAD electronic edition drawing, proposes roofing beam slab and the projection three-dimensional coordinate on ground thereof;
(3) surveying and locating nine-squares beam floor projection axis: by AutoCAD and space measurement setting-out technique, according to the projection three-dimensional graph paper of roofing beam slab on ground of secondary detailingi, on terrace bed course, measuring goes out nine-squares beam Axis Cross point floor projection coordinate point, releases nine-squares beam floor projection axis according to nine-squares beam Axis Cross point floor projection coordinate point;
(4) steel tube fastener full hall scaffold support system is set up: the vertical rod of full hall scaffold is arranged on the crosspoint of nine-squares beam floor projection axis, and bottom of upright rod arranges base and backing plate; In vertical rod apart from ground 180-220mm eminence, to sweep the floor bar along horizontal direction in length and breadth by the programming in vertical bottom rail, rod end is along vertical horizontally set top girt; Outside full hall scaffold, border arranges vertical bridging continuously from the bottom to top, and arranges horizontal cross brace, at the word diagonal braces vertically arranged between bridging continuously to adjacent two in length and breadth on bottom, the top and bar of sweeping the floor of vertical bridging continuously;
(5) absolute altitude of the support rail under stupefied wood at the bottom of nine-squares beam beam is released: according to hyperboloid nine-squares beam Beam Elevation figure, calculate the absolute altitude of support rail; With level gauge the absolute altitude measuring of support rail in vertical rod, the vertical rod electric welding machine exceeding beam bottom mother plate part blows;
(6) the stupefied wood of colligation, laying beam bottom mother plate on support rail: tie up stupefied wood on support rail, stupefied wood ties up into the arch of distortion according to support rail iron wire; Be paved with after stupefied wood from roofing both sides toward middle spliced girder soffit formwork;
(7) measure releasing roof girder position: the nine-squares beam position coordinates produced according to designing requirement and CAD 3D model, snap the line is located in beam bottom mother plate face, determines plan-position and the bulk of nine-squares beam; On beam bottom mother plate, measuring goes out nine-squares beam axis, then draws beam sideline;
(8) process colligation nine-squares beam reinforcing bar: the setting-out of nine-squares beam reinforcing bar computer, blanking is processed, and presses center line colligation nine-squares beam reinforcing bar at the bottom of nine-squares beam beam;
(9) each side form of nine-squares beam is installed and is reinforced: utilize AutoCAD software to carry out side form setting-out, be then unified in processing space and be processed into nine-squares beam side form square frame; Put at nine-squares beam reinforcing bar the nine-squares beam side form square frame that processes and reinforce;
(10) install and reinforce nine-squares beam top board;
(11) slab reinforcement colligation: on slab reinforcement and nine-squares beam, muscle is positioned at same layer and is pressed on nine-squares beam under muscle, and firm with nine-squares beam reinforcing bar binding; After slab reinforcement colligation, between each nine-squares beam top board and slab reinforcement, add cushion block;
(12) double curved surface roofing concrete placings: build by isohypse division casting area zonal cooling and carry out, nine-squares beam is hoisted by lower and carries out stratified continuous pouring vibration compacting, last layer concrete is built before next layer concrete initial set, topmost one deck is built together with plate concrete, does not stay horizontal construction joint.
2. random oblique according to claim 1 netted nine-squares beam Hyperbolic Roof construction method, it is characterized in that, in described step (4), also have additional a vertical rod at the line mid point of adjacent two nine-squares beam floor projection Axis Cross points.
3. random oblique according to claim 1 netted nine-squares beam Hyperbolic Roof construction method, it is characterized in that, in described step (4), the spacing of sweeping the floor between bar and top girt is distributed equally, thus after determining step pitch, at the vertical horizontally set girt at each step pitch place.
4. random oblique according to claim 1 netted nine-squares beam Hyperbolic Roof construction method, is characterized in that, in described step (4), the spreading of vertical rod adopts and carries out clasp connected mode.
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