CN211173077U

CN211173077U - Cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system

Info

Publication number: CN211173077U
Application number: CN201921844851.9U
Authority: CN
Inventors: 杨锋; 赵海; 朱建红; 赵旭; 孙晓阳; 吴光辉
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-08-04
Anticipated expiration: 2029-10-30

Abstract

The utility model relates to a double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces, this die carrier system includes: the supporting frame body is supported at the position of the double-layer diagonal concrete grid structure to be formed, and a supporting curved surface adaptive to the inner surface of the double-layer diagonal concrete grid structure to be formed is formed on the top surface of the supporting frame body; the first supporting formwork structure is laid on the supporting curved surface and used for forming a layer of oblique concrete grid structure; and a second formwork structure erected on the first formwork structure for forming another layer of oblique concrete grid structure. The utility model discloses the design has the support curved surface on supporting the support body to the adaptation forms the support body that agrees with the change of curvature of curved surface in treating the double-deck skew concrete grid structure that forms, and satisfies the bearing capacity requirement of first formwork structure and second formwork structure, solves among the prior art the problem that the supporting legs scaffold is difficult to realize the many curvatures of shells class molding and supports.

Description

Cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system

Technical Field

The utility model relates to a construction engineering field refers in particular to a cast-in-place double-deck oblique crossing concrete grid structure die carrier system of many curved surfaces.

Background

The construction of the oblique crossing grid structure is a novel steel structure system or a steel pipe concrete structure system gradually formed in the 80 th 19 th century under the promotion of the development of a steel frame support body. However, at present, the design and construction of a cast-in-place multi-curved-surface diagonal concrete grid structure are extremely rare, and the construction difficulty is extremely high.

The important construction difficulty of the cast-in-situ multi-curved-surface diagonal concrete grid structure is the scaffold supporting engineering and the formwork engineering. The conventional supporting surface at the top of the supporting frame in the existing construction technology is mostly a plane, and the design of the space curved surface shape of a multi-curved-surface structure is difficult to realize.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces, solve current carriage top holding surface and mostly be the problem that the plane is difficult to realize the space curved surface form molding design of many curved surface structures.

The technical scheme for realizing the purpose is as follows:

the utility model provides a double-deck oblique crossing concrete lattice construction die carrier system of cast-in-place many curved surfaces, include:

the supporting frame body is supported at the position of the double-layer diagonal concrete grid structure to be formed, and a supporting curved surface adaptive to the inner surface of the double-layer diagonal concrete grid structure to be formed is formed on the top surface of the supporting frame body;

the first supporting formwork structure is laid on the supporting curved surface and used for forming a layer of oblique concrete grid structure; and

and the second formwork structure is supported on the first formwork structure and is used for forming another layer of oblique concrete grid structure.

The utility model discloses the design has the support curved surface on supporting the support body to the adaptation forms the support body that agrees with the change of curvature of curved surface in treating the double-deck skew concrete grid structure that forms, and satisfies the bearing capacity requirement of first formwork structure and second formwork structure, solves among the prior art the problem that the supporting legs scaffold is difficult to realize the many curvatures of shells class molding and supports.

The utility model discloses cast-in-place double-deck skew concrete grid structure die carrier system of many curved surfaces further improves and lies in, still locate including propping up outer support body on the first mode structure, outer support body top support in the bottom of second mode structure, just outer support body has the part to pass first mode structure and with it is fixed to support the support body and connect.

The utility model discloses a cast-in-place multi-curved surface double-deck diagonal concrete grid structure die carrier system's further improvement lies in, first formwork structure includes first die block, first top mould and presss from both sides the first lining mould that is located between first die block and the first top mould, set up the through hole on the first lining mould;

and the corresponding rod piece on the outer layer support frame body passes through the through hole and is fixedly connected with the support frame body.

The utility model discloses a further improvement of the cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system, which also comprises a radial multi-curvature keel laid on the support frame body and a circumferential circular secondary keel fixed on the radial multi-curvature keel;

the radial multi-curvature keel is matched with the curvature of the inner surface of the double-layer oblique concrete grid structure to be formed;

the circular secondary joist of hoop and the camber looks adaptation of the double-deck oblique crossing concrete grid structure internal surface that treats to form, the circular secondary joist of hoop support connect in the bottom of first template structure.

The utility model discloses cast-in-place double-deck bevel concrete grid structure die carrier system of many curved surfaces further improves and lies in, still including perpendicular shore in the slant of radial many curvatures fossil fragments bottom returns the vaulting pole, the slant returns the vaulting pole to be followed radial many curvatures fossil fragments interval is laid, just the slant return the vaulting pole with it is fixed to support the support body to connect.

The utility model discloses a further improvement of the cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system is that the diagonal back stay bar comprises a diagonal bar and an adjustable jacking connected with the top of the diagonal bar;

the inclined rod is fixedly connected with the corresponding part of the support frame body;

the adjustable jacking supports the bottom of the radial multi-curvature keel by adjusting the length of the adjustable jacking.

The utility model discloses cast-in-place double-deck skew concrete grid structure die carrier system of many curved surfaces further improves and lies in, still include fixed connection in radially look for the shape flitch on the circular secondary joist of hoop, radially look for the camber of shape flitch and the camber looks adaptation of the double-deck skew concrete grid structure internal surface of treating formation, just radially look for the shape flitch with first template structure fixed connection.

The utility model discloses a cast-in-place multi-curved surface double-deck diagonal concrete grid structure die carrier system's further improvement lies in, second formwork structure includes second die block, second top mould and presss from both sides the second lining mould of locating between second die block and the second top mould;

the second top die is a multi-curvature glass fiber reinforced plastic template, the shape of the multi-curvature glass fiber reinforced plastic template is matched with the shape of the space between the second lining dies, and an arc-shaped reinforcing plate is embedded in the multi-curvature glass fiber reinforced plastic template close to the surface.

The utility model discloses cast-in-place double-deck skew concrete lattice construction die carrier system of many curved surfaces further improves and lies in, the plane projection who supports the support body is circular, support the support body and include along radial horizon bar and the edge along radial horizon bar interval arrangement's pole setting, the height of pole setting risees gradually along radial outside-in, and the same ascending pole setting height of hoop.

The utility model discloses cast-in-place double-deck oblique crossing concrete grid structure die carrier system of many curved surfaces further improves and lies in, it still includes the hoop arc pole to support the support body, the hoop arc pole is arranged in the pole setting with the crossing department of radial horizon bar, and with the pole setting with radial horizon bar connects fixedly.

Drawings

Fig. 1 is the utility model discloses the three-dimensional structure schematic diagram of one deck oblique crossing concrete grid structure among the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Fig. 2 is the utility model discloses in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces three-dimensional structure schematic diagram of another layer oblique crossing concrete grid structure.

Fig. 3 is the utility model discloses support the top view of support body in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Figure 4 is the utility model discloses support the partial cross-sectional view of support body in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Fig. 5 to fig. 6 are the decomposition step schematic diagrams of the support frame body erection process in the cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system of the utility model.

Fig. 7 to 8 are the utility model discloses install radial positioning horizontal pole, hoop location horizontal pole, radial many curvatures fossil fragments and the circular secondary joist's of hoop decomposition step sketch map of support frame body in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Fig. 9 is an enlarged schematic view of a part of the structure in fig. 8.

Fig. 10 is the structural schematic diagram of the radial form-finding batten laid in the cast-in-place multi-curved surface double-layer oblique crossing concrete grid structure formwork system of the utility model.

Fig. 11 is an enlarged schematic view of a part of the structure in fig. 10.

Fig. 12 is the utility model discloses the structural schematic of first die block of installation in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Figure 13 is the utility model discloses the structural schematic of the first lining mould of installation in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Fig. 14 is the schematic structural diagram of the first lining form in the cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system of the utility model.

Fig. 15 is the utility model discloses the structural schematic of first structure reinforcing bar of installation and first top mould in the double-deck skew concrete grid structure die carrier system of cast-in-place many curved surfaces.

Fig. 16 is the utility model discloses the deciphering schematic diagram of first structure reinforcing bar in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Figure 17 is the utility model discloses the structural schematic of the node of first structure reinforcement in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Fig. 18 is the utility model discloses consolidate the schematic structure of first top mould in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Figure 19 is the utility model discloses the structural schematic of the stick that vibrates in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Fig. 20 is the structural schematic diagram of the installation second lining mold and the second top mold in the cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system of the utility model.

Fig. 21 is the structural schematic diagram of the second top mold in the cast-in-place multi-curved surface double-layer diagonal concrete grid structure mold frame system of the utility model.

Fig. 22 is the utility model discloses consolidate the schematic structure of second top mould in the double-deck oblique crossing concrete grid structure die carrier system of cast-in-place many curved surfaces.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1, the utility model provides a double-deck bevel concrete lattice structure die carrier system of cast-in-place many curved surfaces for the inside bevel concrete lattice structure who is equipped with similar rhombus's hollow out construction of whole similar hemisphere of construction formation, refer to fig. 2, this bevel concrete lattice structure has inside and outside two-layer, the utility model provides a construction method is used for realizing the construction of this many curved surfaces's spherical shell bodily form's special-shaped structure, has high efficiency, low-cost and high-quality advantage. The utility model discloses a conventional material component multi-curved surface space spherical shell structure's whole shape supports the support body and can provides stable firm support for the double-deck die clamping system on upper portion, the utility model discloses still utilize the complicated fretwork form concrete of the reverse type of moulding plastics of the lining mould of rhombus, still improved the concrete vibration quality in the narrow and small space of complicated lines. The utility model discloses cast-in-place double-deck oblique crossing concrete grid structure die carrier system of many curved surfaces is explained below with the accompanying drawing.

Referring to fig. 4, the partial cross-sectional view of the support frame body in the cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system of the utility model is shown. Referring to fig. 18, the structural schematic diagram of the first top mold reinforced in the cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system of the present invention is shown. The cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system of the present invention is described below with reference to fig. 4 and 18.

As shown in fig. 4 and 18, the cast-in-place multi-curved surface double-layer diagonal concrete lattice structure formwork system of the present invention includes a support frame body 20, a first formwork structure and a second formwork structure, wherein the support frame body 20 is arranged at the position of the double-layer diagonal concrete lattice structure to be formed, and a support curved surface 20a adapted to the inner surface of the double-layer diagonal concrete lattice structure to be formed is formed on the top surface of the support frame body 20; the first formwork structure is laid on the supporting curved surface 20a to form a first formwork structure of a layer of oblique concrete grid structure; the second formwork structure is supported on the first formwork structure for forming another layer of oblique concrete grid structure.

The supporting curved surface 20a formed by the supporting frame body 20 provides a supporting and positioning function for the first supporting structure and the second supporting structure.

As shown in figure 1 and figure 2, the utility model discloses a cast-in-place double-deck oblique crossing concrete grid structure of many curved surfaces includes oblique crossing concrete grid structure 10a and oblique crossing concrete grid structure 10b, and two structures are all wholly hemispheroid form, and the top has an opening, is formed with the hollow out construction of a plurality of similar rhombuses in inside, and this hollow out construction's edge is the arc, has many curvature changes. The supporting base 11 is disposed at the bottom of the diagonal concrete grid structure 10a and the diagonal concrete grid structure 10b, the supporting base 11 includes a plurality of supporting columns 111, an inner ring beam 112 and an outer ring beam 113 disposed on the supporting columns 111, and a cross beam 114 supported and connected between the inner ring beam 112 and the outer ring beam 113, the plurality of supporting columns 111 are arranged in a circle and supported at the bottom of the corresponding inner ring beam 112 and outer ring beam 113. The diagonal concrete grid structure 10a is located on the inner ring beam 112, the diagonal concrete grid structure 10b is located on the outer ring beam 113, and cast-in-place construction is adopted for the diagonal concrete grid structure 10a and the diagonal concrete grid structure 10 b. The utility model discloses a die carrier system is used for cast-in-place construction diagonal concrete lattice structure 10a and diagonal concrete lattice structure 10 b.

In one embodiment, as shown in fig. 3 to 5, the plane projection of the support frame 20 is a circle, the support frame 20 includes radial horizontal rods 22 arranged along the radial direction and vertical rods 21 arranged along the radial horizontal rods 22 at intervals, the height of the vertical rods 21 gradually increases from the outside to the inside along the radial direction, and the heights of the vertical rods 21 in the same annular direction are the same. The uprights 21 are supported vertically on a supporting surface, which may be the ground or a floor surface. The vertical rods 21 are arranged at intervals in the circumferential and radial directions, the radial horizontal rods 22 are arranged at intervals in the radial direction and are also arranged at intervals in the height direction of the vertical rods 21, and the plurality of radial horizontal rods 22 connect the plurality of vertical rods 21 arranged in the radial direction together, so that the support frame body 20 connected in a staggered manner in the transverse direction and the longitudinal direction is formed.

Further, the support frame body 20 further comprises a circumferential arc-shaped rod 23, and the circumferential arc-shaped rod 23 is disposed at the intersection of the vertical rod 21 and the radial horizontal rod 22 and is fixedly connected with the vertical rod 21 and the radial horizontal rod 22. The annular arc-shaped rod 23 is of a closed circular structure, a plurality of vertical rods positioned on the same ring are connected together by the annular arc-shaped rod 23, and the radial horizontal rod 22 correspondingly connected with the vertical rods is also fixedly connected. The annular arc-shaped rods 23 are also arranged at intervals along the height direction of the vertical rod 21. Utilize hoop arc pole 23 to connect into whole with pole setting 21 and radial horizontal pole 22, improve the overall stability and the bulk strength of supporting frame body 20.

Still further, as shown in fig. 6, the support frame 20 further includes horizontal cross braces 24 and vertical cross braces 25, the horizontal cross braces 24 are disposed in a plane formed by the connection of the circumferential arc-shaped rods 23 and the radial horizontal rods 22, and are fixedly connected to the corresponding circumferential arc-shaped rods 23, the corresponding radial horizontal rods 22 and the corresponding vertical rods 21; the vertical cross braces 25 are arranged in a plane formed by the connection of the vertical rods 21 and the radial horizontal rods 22, and are fixedly connected with the corresponding vertical rods 21, the corresponding radial horizontal rods 22 and the corresponding annular arc-shaped rods 23. Preferably, the horizontal scissor supports 24 and the vertical scissor supports 25 are arranged in a pulled-through manner in the plane in which they are arranged, i.e. the horizontal scissor supports 24 and the vertical scissor supports 25 are arranged in the plane in which they are arranged from one end of the plane to the other end opposite to the one end.

Specifically, the support frame body 20 is formed by erecting a steel pipe scaffold, is integrally arranged in a circular tower shape, and is intersected with a radial horizontal rod 22 by an annular arc-shaped rod 23 on the plane, wherein the annular arc-shaped rod is a concentric circle with gradually increased radius, and the radial arc-shaped rod is uniformly divided at the same angle by taking the circle center as an intersection point. The circumferential arc-shaped rod 23 is formed into a corresponding radian by adopting a pipe bending machine through cold bending according to the circular radius of the position, and the vertical rod 21, the radial horizontal rod 22, the horizontal scissor brace 24 and the vertical scissor brace 25 all adopt straight steel pipes. When the horizontal cross brace 24 is provided, in order to avoid disconnection due to a break angle, the horizontal cross brace needs to be additionally provided to ensure continuity when the span is not satisfied.

The size of the support frame 20 is set according to the size of the diagonal concrete grid structure 10a to be supported. In this embodiment, support frame body 20 overall height is 23.7m, and radius 30m arranges in on building structure's one deck floor, and in order to avoid the load too big, adopts the back stay structure to consolidate in the bottom of this one deck floor, and this back stay structure preferred adopts steel pipe scaffold, sets up under the projection that supports frame body 20. Preferably, the support frame body 20 adopts fastener type steel pipe scaffold, the step pitch is 1200mm, the circumferential interval is 800mm, the outermost side of the longitudinal interval is 1200mm, the innermost side is 700mm, the 200mm position of the bottom of the vertical rod is provided with a floor sweeping rod, and two horizontal rods are encrypted at the top two-step pitch.

In order to further enhance the force stability of the support frame 20, as shown in fig. 4, a square frame 20 'is erected at the center of the support frame 20, the horizontal and longitudinal spacing of the square frame 20' is 1200mm × 1200mm, the step pitch is 1200mm, and the square frame and the support frame 20 are mutually tied for 3 spans.

The horizontal cross braces 4 on the support frame body 20 span × 4, one is arranged every 5 steps, the vertical cross braces 5 steps 5 span, and the frame body outer periphery and the inside cross 5 span 4 steps.

The support body outside is peripheral and inside moves 4 steps with great ease 5 and sets up continuous vertical bridging from the end to supreme, and the support body is swept ground pole and top, 4 steps at middle part and is set up horizontal bridging 4 × 4 and stride, because of the support body is circular support body, for guaranteeing that the bridging does not break off because of the dog-ear, horizontal bridging is pulled through and is arranged, meets the condition that unsatisfied 4 × 4 strides, adds the steel pipe fastener overlap joint, makes it satisfy the construction requirement.

In one embodiment, as shown in fig. 7 and 8, the supporting frame further comprises a radial multi-curvature keel 43 laid on the supporting frame body 20 and a circumferential circular cross keel 45 fixed on the radial multi-curvature keel 43; the radial multi-curvature keel 43 is matched with the curvature of the inner surface of the double-layer oblique concrete grid structure to be formed; the circular secondary joist 45 of hoop and the camber looks adaptation of the double-deck oblique crossing concrete grid structure internal surface that treats to form, the circular secondary joist 45 of hoop support connect in the bottom of first template structure.

Preferably, the circular secondary joist 45 of hoop is closed circular structure, through radial many curvatures fossil fragments 43 and with support frame body 20 fixed connection, radial many curvatures fossil fragments 43 are laid along the hemisphere face that supports curved surface 20a at the interval on the radial direction, the circular secondary joist 45 of hoop is laid along the hemisphere face that supports curved surface 20a at the interval on the hoop, this circular secondary joist 45 of annular's wholeness is good, it can be even the transmission for radial many curvatures fossil fragments 43 under it with the effort of the spherical shell concrete structure construction that will treat to form, and then transmit for support frame body 20 by radial many curvatures fossil fragments 43, pass power route reliable and stable, can provide firm stable supporting role for the spherical shell concrete structure construction that treats to form.

Further, the supporting frame further comprises oblique back-supporting rods 44 vertically supported at the bottom of the radial multi-curvature keel 43, the oblique back-supporting rods 44 are arranged at intervals along the radial multi-curvature keel 43, and the oblique back-supporting rods 44 are fixedly connected with the supporting frame body 20. The radial multi-curvature keel 43 is firmly supported on the support frame body 20 through the arranged oblique stay bar 44, the oblique stay bar 44 can uniformly transmit the pressure applied to the radial multi-curvature keel 43 to the support frame body 20, and the stability of the whole stress can be ensured.

Preferably, the diagonal bracing bar 44 comprises a diagonal rod 441 and an adjustable top support 442 connected to the top of the diagonal rod 441; the inclined rod 441 is fixedly connected with a corresponding part of the support frame body 20; the adjustable jacking 442 bears against the bottom of the radial multi-curvature keel 43 by adjusting its own length.

Still further, as shown in fig. 7 and 9, a radial positioning cross bar 41 is further included, the radial positioning cross bar 41 is laid along the radial direction, the radial positioning cross bar 41 is fixedly connected with a corresponding portion of the support frame 20, and an end of the radial positioning cross bar 41 protrudes out of the support frame 20 to form a positioning end for installing a radial multi-curvature keel 43. The radial multi-curvature keel 43 is provided with a mounting base by a radial positioning cross bar 41, and a positioning end formed on the radial positioning cross bar 41 protrudes out of the outermost side of the support frame body 20 by a distance to form a positioning end, preferably, the length of the positioning end is greater than or equal to 250 mm.

The spherical shell body forming machine further comprises a circumferential positioning cross rod 42 arranged on the positioning end, the curvature of the circumferential positioning cross rod 42 is matched with the curvature of the inner surface of a concrete structure of a spherical shell body to be formed, and the circumferential positioning cross rod 42 is fixedly connected with a radial multi-curvature keel 43. Utilize hoop location horizontal pole 42 to support and connect radial many curvatures fossil fragments 43, this hoop location horizontal pole 42 is fixed at the location end of radial location horizontal pole 41, and this hoop location horizontal pole 42 also just locates the outside of supporting frame body 20 for the effect of location support is played in the installation to radial many curvatures fossil fragments 43. Preferably, the circumferential positioning rail 42 is a closed circular structure, the circumferential positioning rail 42 is spaced from the bottom of the support frame 20 to the top, and the circumference of the circumferential positioning rail 42 is gradually reduced from the bottom of the support frame 20 to the top.

Preferably, the circumferential positioning rail 42 is used as a first step of shape-finding of the curved surface, and the circumferential positioning rail 42 is cold-bent by the pipe bender to form a corresponding radian according to the circular positioning radius of the position, which generally requires 3 to 4 times of cold bending. This hoop location horizontal pole 42 is along radial level 22 from supreme equipartition arrangement down to it is fixed through radial location horizontal pole 41 drawknot with pole setting 21, and this hoop location horizontal pole 42 stretches out the pole setting 21 certain distance in the outside, and hoop location horizontal pole 42 is closed circular structure, and it will receive the effort along the circumference evenly transmit for radial location horizontal pole 41 and pole setting 21.

For strengthening the stability of radial positioning horizontal pole 41, with radial positioning horizontal pole 41 along the radial of the pole setting 21 that supports support body 20, every step interval all sets up one along by the structure outside from top to bottom, adopt the fastener fixed radial positioning horizontal pole 41 at least with 3 pole settings 21 that lean on the outside to stretch out the outside pole setting and be not less than 250 mm.

The radial multi-curvature keels 43 and the annular circular secondary keels 45 are the second step and the third step of curved surface shape finding, double steel pipes of cold bending of the pipe bender are adopted according to the vertical positioning radian and the circular positioning radius of the positions, and the annular circular secondary keels 45 are uniformly distributed along the annular direction from bottom to top at intervals of 300 mm. In order to ensure that the radial multi-curvature keel 43 is stressed uniformly and does not deform, the oblique back-supporting rods 44 are arranged along the radial multi-curvature keel 43 at the interval of 500mm, the adjustable jacking 442 of the oblique back-supporting rods 44 is vertically connected and fixed with the bottom of the radial multi-curvature keel 43, and the adjustable jacking needs to be customized and enlarged due to the fact that the double steel pipes of the radial multi-curvature keel 43 are connected through fasteners and have a certain interval. The inclined rod 441 and the vertical rod of the inclined back-bracing rod 44 are not less than 3 times in a pulling way.

Specifically, the upper load is uniformly transmitted to the radial multi-curvature keel 43 through the annular circular secondary keel 45, and then transmitted to the annular positioning cross rod 42, the radial positioning cross rod 41 and the oblique back-bracing rod 44 through the radial multi-curvature keel 43, so that the vertical rod 21 is further transmitted, and the stress stability of the whole body is enhanced.

In one embodiment, as shown in fig. 10 and 11, the formwork structure further comprises a radial form-finding batten 46 fixedly connected to the annular circular secondary joist 45, the curvature of the radial form-finding batten 46 is matched with the curvature of the inner surface of the double-layer diagonal concrete grid structure to be formed, and the radial form-finding batten 46 is fixedly connected with the first formwork structure.

The curvature of the radial form finding battens 46 is adapted to the curvature of the inner surface of the diagonal concrete grid structure to be formed. Preferably, the radial shape-finding battens 46 are 50mm by 80mm battens, and are thicknessed into a required curvature shape by a thicknesser, the thickness direction of the radial shape-finding battens 46 is perpendicular to the annular circular secondary keel 45, the radial shape-finding battens 46 are radially arranged, the distance is less than 200mm, and the annular circular secondary keel 45 is fixedly connected by steel nails.

In one embodiment, as shown in fig. 12, 13 and 15, the first supporting mold structure includes a first bottom mold 31, a first top mold 32 and a first lining mold 33 sandwiched between the first bottom mold 31 and the first top mold 32, and a first structural steel bar 34 is disposed on the first bottom mold 31 between the first lining mold 33.

The first bottom die 31 is laid on the radial form-finding batten 46, the curvature of the first bottom die 31 is adapted to the curvature of the inner surface of a diagonal concrete grid structure to be formed, the first bottom die 31 is attached to the radial form-finding batten 46, the first bottom die 31 and the radial form-finding batten 46 are connected and fixed through steel nails, the first bottom die 31 is a glued wood template with the thickness of 12mm, after being cut into × 600mm of 300mm, the glued wood template is transversely and fully laid and fixed on the radial form-finding batten 46, a groove for hiding a lamp is reserved on the surface of the diagonal concrete grid structure, after the first bottom die 31 is installed, a lamp groove control line is released according to trend of the lamp groove, a wood light line is roughly installed, the wood light line is fixed through a self-tapping screw from one side of the radial form-finding batten 46, in order to ensure that the surface of a poured concrete structure is smooth, slurry is not attached or irregular bulges and dents, after the wood light line is installed, secondary treatment is carried out on the joint of the first bottom die 31, in the embodiment, atomic ash is uniformly filled and polished to be smooth, and.

A first lining mold 33 is installed on the first bottom mold 31, and as shown in fig. 13 and 14, the first lining mold 33 is installed on the first bottom mold 31 according to the position of the hollow portion to be formed. The first lining mold 33 is a multi-curvature light hard mold plate with a surface of 4mm thick glass fiber reinforced plastic and an internal injection molding foaming polyurethane filler. The first lining die 33 is manufactured by adopting CNC numerical control engraving to form a multi-curved-surface diamond lining die female die according to a designed three-dimensional template and then repeatedly performing injection molding on polyurethane and glass fiber reinforced plastic materials through die turnover. When the first lining die 33 is installed, the vertical central axis, the top elevation and the bottom elevation are precisely controlled to accurately position. A temporary fixing structure can be arranged at the bottom of the first lining form 33, the first lining form 33 is temporarily fixed on the first bottom form 31 by the temporary fixing structure, after the subsequent first structural steel bars 34 are bound, the temporary fixing structure can be removed, and the first lining form 33 can be clamped by the first structural steel bars 34.

Further, when the first lining form 33 is attached, the first lining form 33 is attached and fixed to the first bottom form 31, and when a gap is formed between the first lining form 33 and the first bottom form 31, the gap is filled with the foamed polyurethane; and (3) coating a layer of putty on the surface of the first lining mold 33, polishing to form a putty surface layer, and coating a layer of release agent on the putty surface layer.

The utility model discloses utilize first lining mould to set up in first template structure, demolish this first lining mould again after concreting in order to form required hollow out construction molding, have the advantage that the shaping is effectual, when making first lining mould, can make corresponding lining mould according to required figurative camber accurately, compare in present plank sheathing piece together and customization steel mould, can be very big save construction cost and reduce the construction degree of difficulty, and shaping quality and effect are good.

After the first lining form 33 is mounted on the first bottom form 31, the first structural reinforcing bars 34 are bound on the first bottom form 31, and the reinforcing bars are bound from bottom to top in a segmented manner during binding. Referring to fig. 1, the oblique concrete grid structure 10a is in the shape of an oblique concrete column except for a hollow structure, the first structural steel bars 34 are disposed in the oblique concrete column, when the first structural steel bars 34 are bound, the construction space is located between adjacent gambling formwork 33, the construction space is narrow, the oblique concrete column is an irregular variable cross section, and accordingly the first structural steel bars 34 are a multi-curvature complex woven steel bar mesh with an irregular variable cross section. When the first structure reinforcing bar 34 of ligature bottommost, can lay the stirrup in first structure reinforcing bar 34 earlier and set for the position, then alternate main muscle in the stirrup, carry out position control with the main muscle according to the camber of first structure, after the main muscle and the stirrup of fixed connection good bottom, set up the hook muscle between main muscle. Then when ligature upper portion reinforcing bar, the radian of main muscle in the adjustment lower part reinforcing bar makes its and the camber of waiting to form unanimous, then locates the top of main muscle in the lower part reinforcing bar with the stirrup cover in the upper portion reinforcing bar, then with the main muscle butt joint that corresponds in main muscle in the upper portion reinforcing bar and the lower part reinforcing bar, again with the stirrup in the upper portion reinforcing bar remove to the position of settlement and with the main muscle fixed connection that corresponds in the upper portion reinforcing bar. After the main reinforcements and the stirrups are fixed, the hook reinforcements are connected between the main reinforcements in a pulling and tying mode.

Specifically, as shown in fig. 16, square closed stirrups 342 are provided in the corresponding tie spaces of the first structural reinforcing bars 34, and main reinforcements 341 are provided at intervals along the peripheries of the stirrups 342. A U-shaped open hoop is also provided, the curvature of which varies with elevation, as well as the main rib 241 and the stirrup 342. In order to accurately perform lofting work of the first structural steel bar, according to a design model and a distribution section, sectioning and plotting of a concrete section are performed, and the row spacing and the shape of a main reinforcement, a stirrup, a U-shaped opening reinforcement and a pull hook reinforcement in the inclined column variable section steel bar are determined. For compound on-the-spot installation condition, when the construction, reserve the part of being connected with upper portion reinforcing bar during lower part reinforcement, when upper portion reinforcement, adjust the camber of the reservation part of lower part reinforcing bar, it is unanimous with whole radian to ensure, then overlap the stirrup on this reservation part, again with upper portion reinforcing bar and lower part reinforcing bar butt joint, then shift up the stirrup and set up the position, when the installation reinforcing bar, install reinforcing bar protective layer gasket between reinforcing bar and the first lining form 33 that corresponds, produce the phenomenon of exposing the muscle when avoiding concreting. The adjacent main ribs 341 are connected by a sleeve.

Further, as shown in fig. 16, two sides of the first structural steel bar 34 are provided with a portion partially disposed on the first lining form 33, the portion is used for forming a sidewall protruding at the hollowed-out portion, the sidewall has a multi-curvature shape, a structural rib and an open hoop are disposed at the portion, the open hoop surrounds the structural rib, and two ends of the steel bar at the opening of the open hoop extend into the stirrup 342.

As shown in fig. 17, after the first structural reinforcing bars 34 are bound, a reinforcing rib 343 and a reinforcing hoop 344 are additionally provided at the intersection node, the reinforcing rib 343 is provided on both sides of the intersection node, the reinforcing hoop 344 is hooped on the reinforcing rib 344 and the bound first structural reinforcing bars, and the strength of the intersection node is improved by the reinforcing rib 343 and the reinforcing hoop 344.

In one embodiment, when the first structural bars 34 are bound, as shown in fig. 19, the orientation rail 61 is laid along the arrangement region of the first structural bars 34, and the bottom of the orientation rail 61 is fixed to the bottom of the first bottom mold 31; the vibrating rod 62 is provided, a fixing ring 63 is provided on a side portion of the vibrating rod 62, and the fixing ring 63 of the vibrating rod 62 is fitted to the corresponding orientation rail 61, so that when the vibrating rod 61 is pulled up, the movement of the vibrating rod 61 is guided by the fixing ring 63 and the orientation rail 61. The directional track and the vibrating rod that set up are used for when the concrete of pouring first structure, vibrate in order to ensure closely knit to the concrete through vibrating rod 62.

When the orientation rail 61 is provided, the orientation rail 61 is provided at a position where the gap is large in the first structural reinforcing bars 34 to facilitate the subsequent movement of the vibrator rod 62. Specifically, the guiding rail 61 is a steel cable whose bottom end can be fixedly connected to the bottom of the first structural steel bar 34, and a hook can be further disposed at the bottom of the first bottom die 31 to hook the bottom end of the steel cable. The fixing ring 63 may be a nut having a diameter larger than the diameter of the guide rail 61, and the nut is welded and fixed to the vibrating rod 62.

Referring to fig. 18, before the first top mold is mounted, a double-sided tape is attached to the surface edge of the first lining mold 33, and the first top mold 32 is attached by the double-sided tape. The first lining die 33 is tightly attached to the first top die 32 through the double faced adhesive tape, so that the effects of connection and fixation and sealing are achieved, and the poured concrete is prevented from entering the surface of the first lining die 33. Preferably, the thickness of the double-sided adhesive tape is 1.5mm, so as to ensure that no gap is formed between the first lining mold 33 and the first top mold 32 when the first top mold is fastened.

Specifically, the first top mold 32 and the first bottom mold 31 are made of the same material. First top mode 32 is used for the final curved surface of first structure to look for the shape, this first top mode 32 adopts radial reinforcement flitch, the circular reinforcement fossil fragments of hoop and syllogic split bolt fastening, radial reinforcement flitch is unanimous with the thicknessing mode of radial shape flitch 46, the circular reinforcement fossil fragments of hoop and the circular secondary joist 45's of hoop material and processing method are unanimous, combine shown in fig. 18, radially consolidate the flitch along radially laying on fixed and first top mode 32 at the interval, adopt first top mode 32 of nail fixed connection and radial reinforcement flitch, locate radial reinforcement flitch with the circular reinforcement fossil fragments of hoop, utilize the syllogic split bolt to run through first top mode 32 and second die block 31, and then draw the circular reinforcement fossil fragments of hoop and the circular secondary joist 45 of hoop fastening. In order to ensure that the screw holes are arranged with vacuum after concrete is formed, the edges and corners of the concave holes are cleaned and smoothened, and the forming effect is poured out regularly, the three-section split bolts are arranged at the positions of the transverse spacing d/3 according to the cross section of the concrete batter post, d is the minimum cross section width of the batter post, the longitudinal spacing is 300mm, and the outer sides of the three-section split bolts are all sleeved with PVC sleeves.

The first top die 32 is constructed in a sectional installation mode, the concrete pouring of the oblique concrete grid structure also adopts a sectional pouring mode, according to the characteristics of the structure, the concrete is poured in 9 sections which are vertically divided, the construction joints are arranged at the bottom corners of each rhombic grid, the vertical construction joints are not reserved, and the concrete is poured into a whole in an annular mode. After installing one section first top mould 32, to pouring a section concrete between this first top mould 32 and the first die block 31, for the density degree that improves the concrete, when concreting, utilize the tamper 62 that sets up in advance to vibrate the concrete, this tamper 62 is at the in-process that vibrates, artifical pulling tamper 62 upwards moves along directional track 61, the top of concrete is pulled to the slow tamper 62 that will vibrate from the concrete bottom of pouring, ensure concrete compaction, tamper 62 draws down the top of concrete so that vibrate the concrete of follow-up pouring. The vibrating rod 62 can freely move in a narrow and small space with dense reinforcing steel bars through the arranged directional track 61, and the problem that the vibrating rod is difficult to insert in a reinforcing steel bar dense area subsequently is solved. And the directional track 61 that sets up can ensure to take out the tamper 62 for tamper 62 can effectual recycle, and can not take place the phenomenon that tamper 62 is difficult to take out in intensive reinforcing bar region.

For improving the dense effect of vibration, need set up 3 at least vibrating rods at each vertical unit lattice structure terminal surface, each vibrating rod all establishes on the directional track that corresponds through solid fixed ring cunning, and this directional track can lengthen at first structure reinforcing bar 34 ligature in-process to this directional track 61 can be along the top that the bottom of first die block 31 set up always. When setting up the vibrating rod, guarantee that the minimum distance between vibrating rod and the first lining mould 33 that corresponds is greater than 500mm, avoid crossing to shake and arouse that first lining mould produces great deformation.

Preferably, the segmental binding of the first structural steel bar 34 is performed simultaneously with the segmental casting of the first concrete, that is, firstly, one segment of the first structural steel bar 34 is bound, then the corresponding first top mold 32 is laid, one segment of concrete is cast correspondingly, and then the binding of the first structural steel bar 34 of the next segment, the installation of the first top mold 32 and the casting of the concrete are performed

In a specific embodiment, the utility model discloses a die carrier system is still including propping up the outer support body of locating on first formwork structure, and this outer support body top support is in the bottom of second formwork structure for second formwork structure provides the support, this outer support body has the part to pass first formwork structure and is connected fixedly with support body 20. The structure of this outer support frame body is the same with the structure of support frame body 20, and it is located on first formwork structure, utilizes first formwork structure to provide the support for second formwork structure, and this outer support frame body links into an organic whole with support frame body 20, can improve structural stability.

Preferably, the first lining die is provided with a through hole; the corresponding rod members on the outer support frame body pass through the through holes and are fixedly connected with the support frame body 20. Preferably, there are at least 6 uprights passing inside one first lining form 33. The support frame body and the outer support frame body are connected into a whole, so that the stability of the supporting structure can be improved.

In one embodiment, as shown in fig. 20 to 22, the second formwork structure includes a second bottom formwork 51, a second top formwork 52, and a second lining formwork 53 sandwiched between the second bottom formwork 51 and the second top formwork 52; the second top mold 52 is a multi-curvature glass fiber reinforced plastic mold, the shape of the multi-curvature glass fiber reinforced plastic mold is matched with the shape of the space between the second lining molds 53, and an arc-shaped reinforcing plate is embedded in the multi-curvature glass fiber reinforced plastic mold near the surface.

The second bottom mold 51 has the same structure and the same construction method as the first bottom mold 31, and the second lining mold 53 has the same manufacturing method and the same construction method as the first lining mold 33. The second structural steel bars 54 are bound on the second bottom die 51, and the installation method thereof is the same as that of the first structural steel bars, and specific reference may be made to the description of the construction part of the first bottom die structure, and details are not repeated here.

Similarly, in order to ensure that the concrete is poured densely on the other layer of the diagonal concrete grid structure 10b, when the second structural steel bars are bound, the directional track is laid along the arrangement area of the second structural steel bars, and the bottom of the directional track is fixed to the bottom of the second bottom die; providing a vibrating rod, arranging a fixing ring at the side part of the vibrating rod, and sleeving the fixing ring of the vibrating rod on a corresponding directional track, so that when the vibrating rod is lifted, the movement of the vibrating rod is guided through the fixing ring and the directional track; when the concrete of second structure is pour, vibrate in order to ensure closely knit to the concrete through the vibrating rod.

Specifically, the shape of the second top form 52 is adapted to the shape of the space between the adjacent second lining forms 53, the second top form 52 is processed in the same manner as the second lining forms and the first lining forms, the second top form 52 has an overall glass fiber reinforced plastic thickness of 10mm, four peripheral edges of the second top form 52 are partially overlapped on the second lining forms 53, the overlapped length is 250mm, an arc-shaped steel plate of 80mm × 3mm is embedded into the outer surface of the second top form 52 to serve as a back edge, regular wood bolt holes are formed along the periphery of 200mm to serve as temporary fixing points of the second lining forms, when the second top form 52 is installed, circular reinforcing keels and three-section tie bolts are uniformly arranged at intervals of 300mm on the outer side to serve as a double-layer formwork for reinforcement, the construction method of the diagonal concrete grid structure 10b is the same as the concrete construction method of the diagonal concrete grid structure 10a, the second top form 52 is constructed in sections, and the second top form 52 is provided with reinforcing slabs extending upward and extending through the second lining forms to improve the quality of the concrete.

The utility model is used for solving the problem that the existing scaffold supporting system is rectangular and square, and the design of multi-curvature modeling of spherical shell structures is difficult to realize; the method is also used for solving the problems of large difficulty, high hoisting difficulty, low installation effect and difficulty in turnover use of the common wooden template assembly form-finding and stereotyped steel template; and the method is also used for solving the problem that the multidirectional crossed concrete of the molding longitudinal ribs in the department of narrow and small departments is difficult to vibrate and compact. The utility model is suitable for a construction of oblique crossing concrete grid structure of dysmorphism multircurvature fretwork has designed special-shaped scaffold frame support system, increases special joint construction, has realized that dysmorphism space multirope concrete pattern is looked for shape and is under construction. The utility model provides a construction technology of dysmorphism hollow out construction through double-deck template opposite drawing, moulds plastics the lining mould at dysmorphism fretwork position according to the customization dysmorphism, demolishs after waiting concrete placement, realizes the special-shaped hollow out construction structure of diagonal grid body, through pre-buried concrete multiple spot promotion vibrator for the vibrating rod can directional promotion vibrate under the intensive condition of concrete variable cross-section change and reinforcing bar interval, ensures that concrete vibrates closely knit in the narrow and small space.

The utility model discloses at the support system, the system of finding shape, the design and the construction of template system all adopt conventional common material, through simple and easy processing method and construction method, realize large-scale cast-in-place concrete structure's of oblique crossing net die carrier system, and at reinforcement, concrete placement construction process has optimized and has innovated, the integral construction technique of complicated many curved surfaces heterotypic form oblique crossing concrete grid structure has been formed, very big construction period that has shortened, the effectual construction cost that has reduced, high promotion construction quality, high popularization and application value has.

The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims

1. The utility model provides a cast-in-place double-deck oblique crossing concrete grid structure die carrier system of many curved surfaces which characterized in that includes:

2. The cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system according to claim 1, further comprising an outer layer supporting frame body supported on the first formwork structure, wherein the outer layer supporting frame body is supported against the bottom of the second formwork structure, and a part of the outer layer supporting frame body penetrates through the first formwork structure and is fixedly connected with the supporting frame body.

3. The cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system as claimed in claim 2, wherein the first formwork structure comprises a first bottom formwork, a first top formwork and a first lining formwork clamped between the first bottom formwork and the first top formwork, and a through hole is formed in the first lining formwork;

4. The cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system of claim 1, further comprising radial multi-curvature keels laid on the support frame body and annular circular secondary keels fixed on the radial multi-curvature keels;

5. The cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system according to claim 4, further comprising oblique back-bracing rods vertically supported at the bottoms of the radial multi-curvature keels, wherein the oblique back-bracing rods are arranged at intervals along the radial multi-curvature keels, and the oblique back-bracing rods are fixedly connected with the support frame body.

6. The cast-in-place multi-curved double-layer diagonal concrete grid structure formwork system defined in claim 5, wherein the diagonal back-bracing members comprise diagonal rods and adjustable jacking brackets connected to the tops of the diagonal rods;

7. The cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system according to claim 4, further comprising a radial form-finding batten fixedly connected to the annular circular secondary keel, wherein the curvature of the radial form-finding batten is matched with the curvature of the inner surface of the double-layer diagonal concrete grid structure to be formed, and the radial form-finding batten is fixedly connected with the first formwork structure.

8. The cast-in-place multi-curved surface double-layer diagonal concrete grid structure formwork system as claimed in claim 1, wherein the second formwork structure comprises a second bottom formwork, a second top formwork and a second lining formwork clamped between the second bottom formwork and the second top formwork;

9. The cast-in-place multi-curved double-layer diagonal concrete grid structure formwork system according to claim 1, wherein the planar projection of the support frame body is circular, the support frame body comprises radial horizontal rods arranged along a radial direction and vertical rods arranged at intervals along the radial horizontal rods, the height of the vertical rods is gradually increased from outside to inside along the radial direction, and the height of the vertical rods in the same annular direction is the same.

10. The cast-in-place multi-curved double-layer diagonal concrete grid structure formwork system according to claim 9, wherein the support frame body further comprises a circumferential arc-shaped rod, and the circumferential arc-shaped rod is arranged at the intersection of the vertical rod and the radial horizontal rod and is fixedly connected with the vertical rod and the radial horizontal rod.