CN109372255B - Cast-in-situ steep slope space curved roof template system and construction method thereof - Google Patents
Cast-in-situ steep slope space curved roof template system and construction method thereof Download PDFInfo
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- CN109372255B CN109372255B CN201811601779.7A CN201811601779A CN109372255B CN 109372255 B CN109372255 B CN 109372255B CN 201811601779 A CN201811601779 A CN 201811601779A CN 109372255 B CN109372255 B CN 109372255B
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- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 19
- 230000008859 change Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 230000000712 assembly Effects 0.000 claims description 21
- 238000000429 assembly Methods 0.000 claims description 21
- 239000002023 wood Substances 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000011150 reinforced concrete Substances 0.000 abstract description 4
- 230000001788 irregular Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 239000012634 fragment Substances 0.000 description 15
- 238000009415 formwork Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 241000357293 Leptobrama muelleri Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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Abstract
The utility model provides a cast-in-situ abrupt slope space curved roof template system and construction method thereof, template system includes bearing structure, top layer panel structure, two rows of montants top elevations of adjacent around the hall scaffold are the same or different, and two rows of montants are different around the elevation divide into one row of high pole and one row of low pole, and bearing structure still includes jacking coupling assembling and waist holds in the palm coupling assembling, and panel structure divide into a set of rectangle unit module that the level set up, board coupling assembling fixed connection is at four bights of every unit module, and template system still includes the abrupt slope timber square frame body of placing in unit module upside. The invention is suitable for cast-in-situ reinforced concrete space special-shaped curved surface roofs with irregular curvature change, larger curvature change, inclination angle of a plane unit larger than 45 degrees and larger thickness. The method has strong operability, can meet the bearing capacity, can greatly adapt to the construction method of curvature change of the curved surface, and has high market value.
Description
Technical Field
The invention relates to a roof template system, in particular to a roof template system with a space curved surface cast-in-situ structure and a construction method thereof.
Background
With the development of the times, the art requirements of the building design field on the building modeling are higher and higher, and various special-shaped structures are layered endlessly. Various types of curved surfaces are increasingly being used in building roofing modeling, such as steel trusses, thin film structures, and the like. Among them, the construction of curved roof structures, especially with cast-in-place concrete, is most difficult.
The heavy difficulty of cast-in-situ reinforced concrete curved surface structure lies in the template engineering and scaffold engineering, how to fit the curvature required by design with the template, and how to set up the corresponding scaffold, which greatly limit the construction of the space curved surface cast-in-situ structure roof. In general, two methods exist for forming a curved surface with a certain curvature by using template simulation, one is to customize a template with a corresponding curvature according to a designed curved surface, namely, a wood block is processed into a template with a corresponding curvature in a factory according to the curvature requirement, and the method has higher manufacturing cost, poorer reusability and suitability for a curved surface with smaller scale and high apparent quality requirement; in addition, the whole curved surface is divided into areas with small curvature change by using a common standard template with the thickness of 12mm, the curved surface of each area is simulated by using the bending of the template to a certain extent, and finally the whole curved surface is spliced.
Disclosure of Invention
The invention aims to provide a cast-in-situ steep slope space curved roof template system and a construction method thereof, which are used for solving the technical problems that the template supporting mode of the curved roof structure curved surface custom template of the existing reinforced concrete structure is high in cost and poor in reusability, and the curved surface of the whole area can not be fitted with the curved surface with large curvature change by utilizing the bending degree of the template.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the cast-in-situ steep slope space curved roof template system comprises a bottom supporting structure and a surface layer panel structure fixedly connected to the top of the supporting structure, wherein the supporting structure comprises a full-hall scaffold at the bottom, the full-hall scaffold is formed by interconnecting a group of bases, a group of vertical rods and a group of horizontal rods,
the elevation of the top ends of two rows of vertical rods adjacent to each other in front and back of the full-hall scaffold is the same or different, the front and back rows of vertical rods with different elevations are divided into a row of high rods and a row of low rods,
the supporting structure also comprises a group of jacking connecting components and a group of waist supporting connecting components, the number of the jacking connecting components is the same as that of the vertical rods and the waist supporting connecting components are fixedly connected to the top ends of the vertical rods, the waist supporting connecting components are fixedly connected to the positions of the top ends of the low rods and the high rods in horizontal projection,
the panel structure is divided into a group of horizontally arranged rectangular unit modules, each unit module comprises a template keel, a template panel and a template connecting assembly,
the template connecting components are fixedly connected at four corners of each unit module, the template connecting components are arranged on the jacking connecting components or the waist supporting connecting components, the front unit module and the rear unit module form a flush platform or a ladder-shaped platform,
the cast-in-situ steep slope space curved roof template system also comprises steep slope wood square frame bodies which are arranged on the upper sides of the unit modules and are in one-to-one correspondence with the unit modules, wherein the steep slope wood square frame bodies comprise horizontal control frames, a group of vertical control strips, a group of arc control strips and steep slope panels which are covered and fixedly connected to the top ends of the arc control strips,
the size of control frame suits with the unit module, vertical control strip sets up along the control frame equipartition, the top face of vertical control strip is the inclined plane that suits with this department roofing inclination, and the elevation of vertical control strip is different, the arc is to the top of control strip according to row fixed connection at the vertical control strip of row to guarantee that each arc is to the top face of control strip all closely laminating and fixed connection with the downside of abrupt slope panel be in order, abrupt slope panel is formed by the concatenation of a set of strip plank, and the abrupt slope panel surface concatenation on the square support body of adjacent abrupt slope is aligned, and the splice seam surface covers has the benefit seam strip.
The template keel is a metal keel, the template keel is fixedly connected to the lower side of the template panel, the template keel comprises a frame keel and a reinforcing keel, the frame keel is fixedly connected to four sides of the template panel, the reinforcing keel is fixedly connected with two parallel opposite frame keels,
the cross section of frame fossil fragments is the Z shape, including top flange plate, web and bottom flange plate, top flange plate level and relative vertical web outwards stretch out, the bottom flange plate inwards buckles relative web and forms the crimp, four top flange plates form four right angle breach at the bight of frame fossil fragments, the template panel is full to be spread in the upside of frame fossil fragments, the edge parallel and level around the template panel and the edge of four top flange plates.
The template connecting components are metal connecting components, each template connecting component is fixedly connected to the lower sides of two adjacent upper flange plates, the template connecting components are bilaterally symmetrical and comprise flange connecting plates, transition connecting plates, top plates and limiting plates,
the flange connecting plate comprises two right-angle pieces which are fixedly connected at the lower side of the upper flange plate and at the internal angle position formed at the outer side of the web plate, the outer edge of the flange connecting plate is aligned with the right-angle notch of the frame keel,
the transition connecting plate is a right-angle piece, the transition connecting plate is vertically downward relative to the flange connecting plate and is fixedly connected with the flange connecting plate, the opening of the right-angle piece faces outwards, the opening is along the position of the right-angle notch,
the top plate is a square plate, the top plate is horizontally and centrally fixedly connected to the bottom of the transition connecting plate,
the limiting plate is a right-angle piece, and the opening of the right-angle piece is inwards fixedly connected with the lower sides of two adjacent edges of the transition connecting plate.
The jacking connecting components are metal connecting components, each jacking connecting component comprises a sleeve base, four ejector rods, a core pipe and a limiting ejector pipe,
the bottom of the sleeve base is sleeved on the top of each vertical rod,
the core pipe is inserted into the middle of the four ejector rods, the height of the core pipe is matched with the installation position of the template connecting component,
the limiting jacking pipe comprises an insertion pipe and a cover plate fixedly connected to one end of the insertion pipe, the insertion pipe is inserted into the top of the core pipe, the cover plate is clamped at the top end of the core pipe, the template connecting assembly is located below the cover plate, and the top of the jacking rod is tightly jacked on the lower side of the top plate and limited through a limiting plate.
The waist support connecting component comprises a split back plate, split bolts, a split face plate, a bearing plate and a top column,
the opposite-pulling backboard and the opposite-pulling panel are respectively arranged on the front side and the rear side of the vertical rod, and are hooped by the penetrated opposite-pulling bolts, the top of the opposite-pulling panel is horizontally bent outwards to form a supporting plate, and the upper side of the supporting plate is fixedly connected with a vertical jacking column corresponding to the limiting plate.
The control frame comprises frame battens with the sizes matched with the sizes of the unit modules, and further comprises two reinforcing battens which are fixedly connected between two opposite frame battens, wherein two reinforcing battens are arranged at intervals in parallel, the connecting positions are located at three points of the frame battens, 20 control strips of each steep slope batten frame body are arranged in total, 5 control strips are arranged in each row, 4 control strips are arranged in each row, and the control strips are uniformly distributed along the control frame.
A steep roof construction method using a cast-in-situ steep slope space curved roof template system comprises the following construction steps:
step one, deepening design: the method comprises the steps of establishing a curved roof model by adopting three-dimensional modeling software, horizontally projecting the curved roof model onto the curved roof plan by utilizing the curved roof plan provided by the original design, projecting the curved roof model into rectangular unit cells, determining the design elevation and the positioning of four corners of each rectangular unit cell and a steep slope wood square frame body by combining the projection with the curved roof model, and then marking the design elevation and the positioning on the plan to form a construction drawing, wherein the construction is directly carried out on site according to the construction drawing;
step two, manufacturing a unit module: step two, manufacturing a unit module: processing and connecting the unit modules in a factory according to the size of the rectangular unit cells on the construction drawing, and simultaneously manufacturing a template connecting assembly, a jacking connecting assembly and a waist supporting connecting assembly, wherein the mounting positions of the template connecting assemblies are fixedly connected at the four corners of the unit modules;
step three, manufacturing a steep slope square frame body: each unit cell is provided with a group of uniformly distributed control points for controlling the elevation of each control bar, and a steep slope square frame body is manufactured according to the elevation of each control point;
step four, building a full scaffold: according to the vertical projection and elevation erection of each unit, overlapping of the full-hall scaffold is carried out on site according to the size of the rectangular unit lattice on the design drawing, and the transverse distance and the longitudinal distance of the full-hall scaffold are adapted to the size of the rectangular unit lattice;
step five, installing a connecting assembly: sleeving jacking connection assemblies at the tops of the vertical rods, and installing waist support connection assemblies at the positions of the horizontal projection of the top ends of the low rods to the high rods;
step six, installing a unit module: according to the design elevation of the construction drawing corresponding to four corners of each rectangular unit cell, adjusting the height and horizontal position of each jacking connection assembly, then paving each unit module one by one to enable each unit module to be horizontal, respectively arranging four template connection assemblies of each unit module on the jacking connection assemblies and the waist support connection assemblies corresponding to four corners of each unit module, horizontally arranging the unit modules, and correspondingly forming a horizontal platform or a trapezoid step platform in front and back rows;
step seven, installing a steep slope wood square frame body: installing each steep slope wood square frame body on the upper side of the unit module according to the design position;
step eight, filling gaps of the template: a seam filling strip is fixedly covered on the surface of the plate seam between two adjacent steep slope panels, and the seam filling strip is made of iron sheet;
step nine, binding reinforcing steel bars and pouring concrete:
according to the design drawing, the steel bar lofting is carried out, the curved roof model is cut according to the steel bar spacing, the steel bar shape is extracted, the length of the steel bar is measured and then used as the basis for steel bar blanking, and for the roof with larger curvature change, the density of the steel bar cushion block is increased at the position with large curvature change; the slump of the concrete of the curved roof is 90mm-110mm; and 2-3 reinforcing steel bars are bound on the top of the top layer of reinforcing steel bars, the thickness of the protective layer is controlled, namely, the casting elevation is achieved, and the added reinforcing steel bars are taken out when casting is completed.
The size of the rectangular unit cell, i.e., the unit module, is 1.2m×1.2m.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the principle of the invention is that the whole curved surface is divided into a plurality of basic units, each unit can be approximately regarded as a plane for a roof with a slow gradient, and when the inclination angle of a unit module is larger than 45 degrees for a roof with a steep gradient, the unit curved surface of each angle is simulated by using the unit module of the plane and the steep slope square frame body, and the units are smoothly transited, so that the curved surface meeting the design requirement is finally formed.
The invention designs a unit module and a corresponding connecting component, a template panel of the unit module adopts a standard-size common plywood template, a keel can adopt a standard steel back edge, a corner is provided with the template connecting component, a support system is a scaffold, a jacking connecting component and a waist supporting connecting component are arranged on the scaffold and are respectively connected with the template connecting components of four adjacent unit modules, and the heights of four feet of the modules are controlled through the jacking elevation of a vertical rod, so that the unit module becomes a horizontal platform or a ladder-shaped platform. And a certain number of locating points are selected for each steep slope timber frame unit, the vertical control timber with different lengths is fixed at each locating point according to the elevation of the locating point, and the steep slope panel is fixed at the top of the timber to form a curved surface, so that the design curvature of a curved roof can be well simulated. The ejector rod on the jacking connecting assembly and the ejector column on the waist supporting connecting assembly are directly jacked on the template connecting assembly, and the template connecting assembly is directly connected with the keels, so that load can be directly transmitted to the scaffold through the jacking.
The unit modules and the jacking are connected in a clamping groove mode, the module keels are prefabricated in a factory, and the unit modules can be formed by only installing the panel once on site, so that the operation steps of template construction are simplified, the operation time is greatly saved, and the construction efficiency is improved.
In the prior art, because of complex process and variable elevation of the template, the curved surface template system has more manpower and material resources compared with the common roof floor template system, and the curved surface is formed by splicing standard units. The standard unit is a customized integrated module, and the standard unit is fixed with the scaffold after the panel is fixed on the unit module, so that the standard unit is very convenient to install and detach, and the working efficiency is greatly improved; compared with the traditional template back edge system, the standard module has more turnover times, each unit component can be reused, and a large amount of cutting loss of the wood and the panel is saved; compared with the custom curved surface template which has higher manufacturing cost and can not be reused, the custom curved surface template is more economical and practical for a large amount of roof engineering, improves the turnover rate of materials and saves the cost.
The invention is suitable for cast-in-situ reinforced concrete space special-shaped curved surface roofs with irregular curvature change, larger curvature change, inclination angle of a plane unit larger than 45 degrees and larger thickness. The size of the unit modules is 0.6m to 1.5m under relatively economical unit division. Unlike common thin-shell concrete curved surface roofs, a common template system cannot completely solve the problems of curved surface positioning and curve fitting degree, and cannot meet the bearing capacity requirement. The construction method has strong operability, can meet the bearing capacity, can be matched with the construction method with curved surface curvature change to a great extent, and has high market value.
Drawings
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a plan view of a curved roof of the present invention.
Fig. 2 is a schematic side view of the structure of fig. 1.
Fig. 3 is a partial enlarged view of fig. 2.
Fig. 4 is an enlarged view of a portion of the jacking connection assembly of fig. 3.
Fig. 5 is an enlarged view of a portion of the lumbar support connection assembly of fig. 3.
Fig. 6 is a schematic perspective view of a unit module.
Fig. 7 is a schematic plan view of a steep slope timber frame.
Reference numerals: 1-jacking connection assembly, 11-sleeve base, 12-ejector pin, 13-core pipe, 14-limit ejector pipe, 2-unit module, 21-template keel, 211-frame keel, 2 a-upper flange plate, 2 b-web, 2 c-lower flange plate, 212-reinforced keel, 22-template panel, 23-template connection assembly, 231-flange connection plate, 232-transition connection plate, 233-top plate, 234-limit plate, 3-full-hall scaffold, 31-base, 32-vertical bar, 33-horizontal bar, 4-curved roof plan view, 5-rectangular unit cell, 6-waist support connection assembly, 61-split back plate, 62-split bolt, 63-split panel, 64-bearing plate, 65-ejector pin, 7-steep slope timber square frame body, 71-control frame, 72-vertical control bar, 73-slope panel, 711-frame timber square, 712-reinforced timber square, 74-arc direction control bar.
Detailed Description
Embodiments referring to fig. 1-7, a cast-in-situ steep slope space curved roof template system comprises a bottom supporting structure and a surface layer panel structure fixedly connected to the top of the supporting structure, wherein the supporting structure comprises a full-hall scaffold 3 at the bottom, and the full-hall scaffold is formed by interconnecting a group of bases 31, a group of vertical rods 32 and a group of horizontal rods 33.
The elevation of the top ends of two rows of vertical rods 32 adjacent to each other in front and back of the full-hall scaffold 3 is the same or different, and the front and back rows of vertical rods with different elevations are divided into a row of high rods and a row of low rods, and the inclination angle of the top connecting line between the high rods and the low rods is not less than 45 degrees. The full-hall scaffold is a disc-buckle scaffold.
The supporting structure further comprises a group of jacking connecting assemblies 1 and a group of waist supporting connecting assemblies 6, the number of the jacking connecting assemblies is the same as that of the vertical rods 32, the jacking connecting assemblies are fixedly connected to the top ends of the vertical rods 32, and the waist supporting connecting assemblies 6 are fixedly connected to the positions from the top end horizontal projection of the low rods to the high rods.
The panel structure is divided into a set of horizontally arranged rectangular unit modules, and each unit module 2 comprises a formwork keel 21, a formwork panel 22 and a formwork connecting assembly 23.
The template fossil fragments 21 are metal fossil fragments, template fossil fragments 21 fixed connection is at the downside of template panel 22, and template fossil fragments 21 include frame fossil fragments 211 and strengthen fossil fragments 212, frame fossil fragments 211 fixed connection is at the four sides of template panel 22, strengthen fossil fragments 212 fixed connection two parallel relative frame fossil fragments 211.
The cross section of frame fossil fragments 211 is the zigzag, including upper flange plate 2a, web 2b and lower flange plate 2c, upper flange plate 2a level and relative vertical web 2b outwards stretch out, the inwards bending type of relative web 2b of lower flange plate 2c forms the crimp, and four right angle breach are formed at the bight of frame fossil fragments 211 to four upper flange plates 2a, template panel 22 is fully spread in the upside of frame fossil fragments 211, template panel 22 peripheral edge and four upper flange plate 2 a's marginal parallel and level.
The template connecting components 23 are fixedly connected at four corners of each unit module 2, the template connecting components 23 are arranged on the jacking connecting components 1 or the waist supporting connecting components 6, the front unit module and the rear unit module form a flat platform or a ladder-shaped platform,
the template connecting components 23 are metal connecting components, each template connecting component is fixedly connected to the lower sides of two adjacent upper flange plates 2a, and the template connecting components 23 are bilaterally symmetrical and comprise flange connecting plates 231, transition connecting plates 232, top plates 233 and limiting plates 234.
The flange connection plate 231 includes two right angle members fixedly connected to the lower side of the upper flange plate 2a at the female angle position formed at the outer side of the web plate 2b, the outer edge of the flange connection plate 231 is aligned with the right angle notch of the frame keel 211,
the transition connection plate 232 is a right angle member, the transition connection plate 232 is vertically downward relative to the flange connection plate 231 and is fixedly connected with the flange connection plate, the opening of the right angle member faces outwards, and the opening is along the right angle notch.
The top plate 233 is a square plate, and the top plate 233 is horizontally and centrally fixedly connected to the bottom of the transition connecting plate 232.
The limiting plate 234 is a right angle member, and the opening of the right angle member is inward and fixedly connected along the lower sides of two adjacent edges of the transition connecting plate 232.
The jacking connection assemblies 1 are metal connection assemblies, and each jacking connection assembly comprises a sleeve base 11, four ejector rods 12, a core tube 13 and a limiting jacking tube 14.
The bottom of the sleeve base 11 is sleeved on the top of each vertical rod 32.
The core pipe is inserted into the middle of the four ejector rods, and the height of the core pipe is matched with the installation position of the template connecting assembly.
The limiting jacking pipe 14 comprises an insertion pipe and a cover plate fixedly connected to one end of the insertion pipe, the insertion pipe is inserted into the top of the core pipe, the cover plate is clamped at the top end of the core pipe, the template connecting assembly is located below the cover plate, and the top of the jacking rod 12 is tightly jacked on the lower side of the top plate 233 and limited through a limiting plate 234.
The lumbar support connection assembly 6 includes a split back plate 61, split bolts 62, a split face plate 63, a support plate 64 and a top post 65.
The opposite pulling back plate 61 and the opposite pulling face plate 63 are respectively arranged at the front side and the rear side of the vertical rod, and are hooped by the penetrated opposite pulling bolts 62, the top of the opposite pulling face plate 63 is horizontally and outwards bent to form a supporting plate 64, and the upper side of the supporting plate 64 is fixedly connected with a vertical jacking column 65 corresponding to the limiting plate 234.
The cast-in-situ steep slope space curved roof template system further comprises steep slope timber square frame bodies 7 which are arranged on the upper sides of the unit modules and correspond to the unit modules one by one, wherein the steep slope timber square frame bodies comprise horizontal control frames 71, a group of vertical control strips 72, a group of arc control strips 74 and steep slope panels 73 which are fixedly connected to the top ends of the arc control strips 74 in a covering mode.
The size of control frame 71 suits with unit module 2, vertical control strip 72 sets up along the control frame equipartition, the up end of vertical control strip 72 is the inclined plane that suits with this department roofing inclination, and the elevation of vertical control strip 72 is different, arc is to control strip 74 according to the top of being listed as vertical control strip of row fixed connection to guarantee that each arc is to the top face of control strip 74 and the downside inseparable and fixed connection of abrupt slope panel are in order, abrupt slope panel 73 is formed by the concatenation of a set of strip plank, and the abrupt slope panel surface concatenation on the adjacent abrupt slope square support body is aligned, and the splice seam surface covers has the seam filling strip.
The steep roof construction method using the cast-in-situ steep slope space curved roof template system comprises the following construction steps:
step one, deepening design: the method comprises the steps of establishing a curved roof model by adopting three-dimensional modeling software, horizontally projecting the curved roof model onto a curved roof plan view 4 by utilizing a curved roof plan view provided by an original design, projecting the curved roof model into rectangular unit cells 5, determining the design elevation and the positioning of four corners of each rectangular unit cell and a steep slope square frame body 7 by combining the projection with the curved roof model, and then marking the design elevation and the positioning on the plan view to form a construction drawing, wherein the construction is directly carried out on site according to the construction drawing.
Step two, manufacturing a unit module: preprocessing the unit module 2 in a factory according to the size of the rectangular unit cell on the construction drawing, and simultaneously manufacturing a template connecting assembly 23, a jacking connecting assembly 1 and a waist supporting connecting assembly 6, wherein the installation positions of the template connecting assemblies 23 are fixedly connected at the four corners of the unit module 2; the rectangular unit cells 5, namely the unit modules 2, are 1.2mx1.2m, namely standard unit cells, and are matched with the module of the disc buckle type scaffold, and the auxiliary unit cells are supplemented by 1.2mx0.9mand 0.9mx0.6m and are used for the positions of curved surface edge corners and the like.
Step three, manufacturing a steep slope square frame body: each rectangular unit cell 5 is provided with a group of uniformly distributed control points for controlling the elevation of each control strip 72, and a steep slope square frame body 7 is manufactured according to the elevation of each control point; for a steep roof, the height of a ladder platform is required to be determined according to the elevation of the roof, the position of the platform is determined by comprehensively considering the construction easiness and the stability of a batten, the length of a control strip is not more than 600mm, and adjacent platforms are combined as much as possible when the height difference of the adjacent platforms is small, so that the working efficiency is improved.
The steep slope panel is paved by cutting the panel into strips with the length of 100mm-200mm and arranging wood Fang Beileng due to larger curvature change, and the panel is fixedly connected with the control strip, so that the control panel needs to be carefully bent to a certain extent in the process, and is enabled to be more close to the curvature change of a curve.
Step four, building a full scaffold: and erecting a vertical rod and a horizontal rod according to the vertical projection and elevation of each unit, and carrying out lap joint of the full-hall scaffold on site according to the size of the rectangular unit lattice 5 on the design drawing, wherein the transverse distance and the longitudinal distance of the full-hall scaffold are matched with the size of the rectangular unit lattice 5.
Step five, installing a connecting assembly: the top of each vertical rod 32 is sleeved with a jacking connection assembly 1, and a waist support connection assembly 6 is arranged at the position from the horizontal projection of the top end of the lower rod to the high rod.
Step six, installing a unit module: according to the construction drawing, the height and the horizontal position of each jacking connection assembly 1 are adjusted corresponding to the design elevation at four corners of each rectangular cell 5, then each unit module 2 is paved one by one correspondingly to enable the unit modules to be horizontal, four template connection assemblies of each unit module 2 are respectively arranged on the jacking connection assemblies 23 and the waist support connection assemblies 6 corresponding to the four corners of the unit module, and the unit modules are horizontally arranged and form a horizontal platform or a trapezoid step platform in a front row and a rear row.
Step seven, installing a steep slope wood square frame body: and installing each steep slope wood square frame body on the upper side of the unit module according to the designed position, fixing the steep slope wood square frame body on the step platform by nails and the like, and paying attention to not damage the wood square in the process.
Step eight, filling gaps of the template: and seam repairing strips are fixedly covered on the surfaces of the plate seams between two adjacent steep slope panels, and are made of iron sheets.
Step nine, binding reinforcing steel bars and pouring concrete:
according to the design drawing, the steel bar lofting is carried out, the curved roof model is cut according to the steel bar spacing, the steel bar shape is extracted, the length of the steel bar is measured and then used as the basis for steel bar blanking, and for the roof with larger curvature change, the density of the steel bar cushion block is increased at the position with large curvature change; the slump of the concrete of the curved roof is 90mm-110mm; and 2-3 reinforcing steel bars are bound on the top of the top layer of reinforcing steel bars, the thickness of the protective layer is controlled, namely, the casting elevation is achieved, and the added reinforcing steel bars are taken out when casting is completed.
Because of the specificity of the curved roof, the steel bar lofting needs to be specially calculated, and the section of the steel bar direction can be conveniently obtained according to the three-dimensional modeling drawing, so that the construction is convenient. According to the structural characteristics of the curved surface, the problems of steel bar binding, supporting systems, concrete pouring and the like are researched, the traditional roof formwork construction method is broken through, and the method has reference significance for similar projects.
The support system has the advantages of uniform stress, definite force transmission, simple process, proper measures, safety and reliability. The curved surface is divided into independent units, corresponding elevation and position are determined from the deepening design stage, inspection and control are facilitated, and engineering construction quality is guaranteed.
Claims (3)
1. The utility model provides a cast-in-situ abrupt slope space curved roof template system, includes bottom sprag structure, fixed connection at the top layer panel structure at the bearing structure top, bearing structure includes full hall scaffold frame (3) of bottom, and full hall scaffold frame is formed its characterized in that by a set of base (31), a set of montant (32) and a set of horizon bar (33) interconnect:
the elevation of the top ends of two rows of vertical rods (32) adjacent to each other in front and back of the full-hall scaffold (3) is the same or different, the front and back rows of vertical rods with different elevations are divided into a row of high rods and a row of low rods,
the supporting structure also comprises a group of jacking connecting components (1) and a group of waist supporting connecting components (6), the number of the jacking connecting components is the same as that of the vertical rods (32) and the jacking connecting components are fixedly connected to the top ends of the vertical rods (32), the waist supporting connecting components (6) are fixedly connected to the positions from the horizontal projection of the top ends of the low rods to the high rods,
the panel structure is divided into a group of horizontally arranged rectangular unit modules, each unit module (2) comprises a template keel (21), a template panel (22) and a template connecting assembly (23),
the template connecting components (23) are fixedly connected at four corners of each unit module (2), the template connecting components (23) are arranged on the jacking connecting components (1) or the waist supporting connecting components (6) in a falling mode, the front unit module and the rear unit module form a flush platform or a ladder-shaped platform,
the cast-in-situ steep slope space curved roof template system also comprises steep slope timber square frame bodies (7) which are arranged on the upper sides of the unit modules and are in one-to-one correspondence with the unit modules, wherein the steep slope timber square frame bodies comprise horizontal control frames (71), a group of vertical control strips (72), a group of arc control strips (74) and steep slope panels (73) which are fixedly connected to the top ends of the arc control strips (74) in a covering manner,
the size of the control frame (71) is matched with that of the unit modules (2), the vertical control strips (72) are uniformly distributed along the control frame, the top end surfaces of the vertical control strips (72) are inclined planes matched with the roof inclination angles at the positions, the elevation of the vertical control strips (72) is different, the arc direction control strips (74) are fixedly connected to the tops of the vertical control strips in a column mode according to the columns, so that the top end surfaces of the arc direction control strips (74) are tightly adhered to the lower sides of the steep slope panels and are fixedly connected to be aligned, the steep slope panels (73) are formed by splicing a group of strip-shaped wood plates, the surfaces of the steep slope panels on adjacent steep slope square frame bodies are spliced and aligned, and the surfaces of splicing seams are covered with seam filling strips;
the template keel (21) is a metal keel, the template keel (21) is fixedly connected to the lower side of the template panel (22), the template keel (21) comprises a frame keel (211) and a reinforcing keel (212), the frame keel (211) is fixedly connected to four sides of the template panel (22), the reinforcing keel (212) is fixedly connected with two parallel opposite frame keels (211),
the cross section of the frame keel (211) is Z-shaped, the frame keel comprises an upper flange plate (2 a), a web plate (2 b) and a lower flange plate (2 c), the upper flange plate (2 a) horizontally and vertically extends outwards relative to the web plate (2 b), the lower flange plate (2 c) is inwards bent relative to the web plate (2 b) to form a bent edge, four right-angle notches are formed in the corners of the frame keel (211) by the four upper flange plates (2 a), the template panel (22) is fully paved on the upper side of the frame keel (211), and the peripheral edges of the template panel (22) are flush with the edges of the four upper flange plates (2 a);
the template connecting components (23) are metal connecting components, each template connecting component is fixedly connected to the lower sides of two adjacent upper flange plates (2 a), the template connecting components (23) are bilaterally symmetrical and comprise flange connecting plates (231), transition connecting plates (232), top plates (233) and limiting plates (234),
the flange connecting plate (231) comprises two right angle pieces which are fixedly connected with the lower side of the upper flange plate (2 a) and the internal angle position formed by the outer side of the web plate (2 b), the outer edge of the flange connecting plate (231) is aligned with the right angle notch of the frame keel (211),
the transition connecting plate (232) is a right-angle piece, the transition connecting plate (232) is vertically downward relative to the flange connecting plate (231) and is fixedly connected with the flange connecting plate, the opening of the right-angle piece faces outwards, the opening is along the position of the right-angle notch,
the top plate (233) is a square plate, the top plate (233) is horizontally and centrally fixedly connected to the bottom of the transition connecting plate (232),
the limiting plates (234) are right-angle pieces, and openings of the right-angle pieces are inwards fixedly connected along the lower sides of two adjacent edges of the transition connecting plates (232);
the jacking connecting components (1) are metal connecting components, each jacking connecting component comprises a sleeve base (11), four ejector rods (12), a core tube (13) and a limiting jacking tube (14),
the bottom of the sleeve base (11) is sleeved on the top of each vertical rod (32),
the core pipe is inserted into the middle of the four ejector rods, the height of the core pipe is matched with the installation position of the template connecting component,
the limiting jacking pipe (14) comprises an insertion pipe and a cover plate fixedly connected to one end of the insertion pipe, the insertion pipe is inserted into the top of the core pipe, the cover plate is clamped at the top end of the core pipe, the template connecting assembly is located below the cover plate, and the top of the jacking rod (12) is tightly jacked to the lower side of the top plate (233) and limited through a limiting plate (234);
the waist support connecting component (6) comprises a split back plate (61), split bolts (62), a split face plate (63), a bearing plate (64) and a jacking column (65),
the opposite-pulling backboard (61) and the opposite-pulling face plate (63) are respectively arranged on the front side and the rear side of the vertical rod, and are hooped by penetrating opposite-pulling bolts (62), the top of the opposite-pulling face plate (63) is horizontally outwards bent to form a supporting plate (64), and the upper side of the supporting plate (64) is fixedly connected with a vertical jack post (65) corresponding to the limiting plate (234);
the control frame (71) comprises frame battens (711) with the sizes matched with the sizes of the unit modules, and further comprises two reinforcing battens (712) which are fixedly connected and are opposite to each other, wherein the two reinforcing battens (712) are arranged at intervals in parallel, the connecting positions are located at the trisection points of the frame battens (711), 20 control strips (72) of each steep slope batten frame body are arranged at the same time, 5 control strips are arranged in each row, 4 control strips are arranged in each row, and the control strips are uniformly distributed along the control frame (71).
2. A steep roof construction method using the cast-in-situ steep slope space curved roof template system of claim 1, characterized by the following construction steps:
step one, deepening design: the method comprises the steps of establishing a curved roof model by adopting three-dimensional modeling software, horizontally projecting the curved roof model onto a curved roof plan (4) by utilizing a curved roof plan provided by an original design, projecting the curved roof model into rectangular unit cells (5), determining the design elevation and the positioning of four corners of each rectangular unit cell and a steep slope square frame body (7) by combining the projection with the curved roof model, and then marking the design elevation and the positioning on the plan to form a construction drawing, wherein the construction is directly carried out on site according to the construction drawing;
step two, manufacturing a unit module: step two, manufacturing a unit module: processing and connecting the unit modules (2) in a factory according to the size of rectangular unit cells on a construction drawing, and simultaneously manufacturing a template connecting assembly (23), a jacking connecting assembly (1) and a waist supporting connecting assembly (6), wherein the mounting positions of the template connecting assemblies (23) are fixedly connected at the four corners of the unit modules (2);
step three, manufacturing a steep slope square frame body: each rectangular unit cell (5) is provided with a group of uniformly distributed control points for controlling the elevation of each control strip (72), and a steep slope wood square frame body (7) is manufactured according to the elevation of each control point;
step four, building a full scaffold: according to the vertical projection and elevation erection of each unit, overlapping of the full-hall scaffold is carried out on site according to the size of the rectangular unit lattice (5) on the design drawing, and the transverse distance and the longitudinal distance of the full-hall scaffold are adapted to the size of the rectangular unit lattice (5);
step five, installing a connecting assembly: the top of each vertical rod (32) is sleeved with a jacking connecting component (1), and a waist support connecting component (6) is arranged at the position of the horizontal projection of the top end of the low rod to the high rod;
step six, installing a unit module: according to the design elevation of the four corners of each rectangular unit cell (5) corresponding to a construction drawing, the height and the horizontal position of each jacking connection assembly (1) are adjusted, then each unit module (2) is paved one by one to be horizontal, the four template connection assemblies of each unit module (2) are respectively arranged on the jacking connection assemblies (23) and/or the waist support connection assemblies (6) corresponding to the four corners of the unit module, the unit modules are horizontally arranged, and the front row and the rear row of the unit modules are correspondingly formed into a horizontal platform or a trapezoid step platform;
step seven, installing a steep slope wood square frame body: installing each steep slope wood square frame body on the upper side of the unit module according to the design position;
step eight, filling gaps of the template: a seam filling strip is fixedly covered on the surface of the plate seam between two adjacent steep slope panels, and the seam filling strip is made of iron sheet;
step nine, binding reinforcing steel bars and pouring concrete:
according to the design drawing, the steel bar lofting is carried out, the curved roof model is cut according to the steel bar spacing, the steel bar shape is extracted, the length of the steel bar is measured and then used as the basis for steel bar blanking, and for the roof with larger curvature change, the density of the steel bar cushion block is increased at the position with large curvature change; the slump of the concrete of the curved roof is 90mm-110mm; and 2-3 reinforcing steel bars are bound on the top of the top layer of reinforcing steel bars, the thickness of the protective layer is controlled, namely, the casting elevation is achieved, and the added reinforcing steel bars are taken out when casting is completed.
3. The construction method of the cast-in-situ steep slope space curved roof template system according to claim 2, wherein the construction method comprises the following steps: the rectangular unit cells (5), i.e. the unit modules (2), have a size of 1.2m x 1.2m.
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| CN111997365A (en) * | 2020-08-26 | 2020-11-27 | 天津市丙辉建材科技开发有限公司 | Method for manufacturing and supporting slope concrete structure |
| CN113107188A (en) * | 2021-04-15 | 2021-07-13 | 中信国安建工集团有限公司 | Large-diameter spherical concrete roof construction and construction supporting template and construction method thereof |
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