阅读说明：本技术 现浇砼屋面翼形角飞檐的施工方法 (Construction method of cast-in-place concrete roof wing-shaped angle cornice ) 是由 李忠治 郭书启 张帅英 李剑 侯喜只 董天勇 胡风闯 郝宏志 侯直平 康现闯 李 于 2020-04-10 设计创作，主要内容包括：本发明涉及一种现浇砼屋面翼形角飞檐的施工方法,该施工方法包括应用建筑信息模型对飞檐深化设计、模型中提供了施工的各个控制点和控制线的数据信息、画出布置总图；进行模板设计制作；翼角飞檐的模板施工、浇筑混凝土和模板拆除等步骤。本发明施工的飞檐板空间曲度一致对称,翼角椽子的截面尺寸一致、间距变化均匀、翼角处对称排布、线面通顺、平直、混凝土观感好,保证了翼角椽、翘飞椽的扭撇斜的古建筑特征,还提高了工效。(The invention relates to a construction method of cast-in-place concrete roof airfoil angle cornice, which comprises the steps of applying a building information model to deeply design the cornice, providing data information of each control point and control line of construction in the model, and drawing a layout general diagram; designing and manufacturing a template; and constructing a template of the wing angle cornice, pouring concrete, dismantling the template and the like. The spatial curvature of the constructed cornice board is consistent and symmetrical, the cross section size of the wing angle rafters is consistent, the interval change is uniform, the wing angles are symmetrically arranged, the line and the plane are smooth and straight, the concrete appearance is good, the twisting and skimming ancient architectural characteristics of the wing angle rafters and the tilted cornice rafters are ensured, and the work efficiency is also improved.)

1. A construction method of cast-in-place concrete roof airfoil angle cornice is characterized in that: the method comprises the following construction steps:

step 1: carrying out deep design on a design drawing: determining a boundary line (6) between the front cornice plate (3) and the wing angle cornice plate (2); determining the raising height of a space curved surface of a wing angle fly-eave plate (2), the length punched out along with a wing angle beam (1), the radians of an outer edge arc line (24) of an end part of the eave beam and an outer edge arc line (25) of an end part of the wing angle fly-eave plate, and the radians of outer side contour lines of a small connecting eave arc-shaped facade template (18) and a large connecting eave arc-shaped facade template (19); determining the arrangement distance and the quantile points of the eaves rafters (202) and the tilting rafters (203), and further determining the size of the template box (7) between the rafters; determining the positions of an eave rafter parting center line (8) and a warping flying rafter parting center line (21) and the position coordinates of a warping punching starting point (9) and a junction point (5) of extension lines of parting lines; determining three-dimensional coordinates (X, Y, Z) of an eave rafter end quantile point (4) and a warping rafter end quantile point (20); building a model by adopting a BIM technology, manufacturing a real object sample plate on the basis of the BIM model on site, and installing the real object sample plate at a drawing design position to verify the effect;

step 2: and (3) according to the control point position determined in the step (1) and the parameters of the control curve, establishing a determination scheme, wherein the determination scheme comprises the following steps: selecting measuring equipment and appliances, setting reference elevation, setting control axis and setting a pilot line; drawing a guide map;

and step 3: manufacturing a wing corner beam bottom template (22) and a wing corner beam side template (23) and pre-assembling, manufacturing a rafter head arc vertical face template (16) and a tilt flying rafter head arc vertical face template (17), manufacturing a small connecting eave arc vertical face template (18) and a large connecting eave arc vertical face template (19), manufacturing a rafter template box (7), and manufacturing a tilt flying rafter bottom mold bending sample rod (14) and a tilt flying rafter bottom mold bending sample rod (15);

and 4, step 4: erecting wing angle beams and wing angle cornice plate support frames;

and 5: measuring and arranging a control point and a control line on the plane of the cast-in-place board on the layer where the wing angle cornice board is located;

step 6: installing a wing corner beam bottom template (22) and a wing corner beam side template (23); marking positions of a small connecting eave warping and punching end point (12) and a large connecting eave warping and punching end point (13) on a wing corner beam side template (23); marking a boundary (6) and a raising and punching starting point (9) on a bottom template of the body-correcting cornice (3);

and 7: installing an eave rafter bottom die bending sample rod (15), and paving an eave rafter bottom template (10); a marked eave rafter positioning center line (8) and a marked eave rafter end positioning point (4) are measured and arranged on the eave rafter bottom template (10); installing an inter-rafter template box (7); installing an arc-shaped vertical face template (16) of a rafter end socket; installing a small eave arc-shaped vertical face template (18);

mounting a warping fly rafter bottom die bending sample rod (14) and paving a warping fly rafter bottom template (11); measuring and setting a calibrated tilt fly separating point central line (21) and a tilt fly end separating point (20); installing an inter-rafter template box (7); mounting a warping-flying-beam end socket arc-shaped facade template (17) on the warping-flying-beam bottom template (11); installing a large eave arc-shaped vertical face template (19);

and 8: binding reinforcing steel bars on the wing angle cornice plate;

and step 9: integrally pouring wing angle cornice plate concrete, wherein the concrete comprises wing angle component members such as wing angle beams, eave rafters, tilt rafters, rafter top strakes and the like;

step 10: and when the concrete pouring age reaches 28 days and the strength of the on-site retention test block reaches more than 100%, integrally removing the wing angle cornice plate template.

2. The construction method of the cast-in-place concrete roof airfoil angle cornice according to claim 1, characterized in that: the step 7 of installing the bending sample rod and paving the bottom formwork specifically comprises the following steps:

step A: after the support steel pipe frame body in the step 4 is erected to be qualified, fixedly installing a warping flying bottom die bending sample rod (14) and a cornice bottom die bending sample rod (15) according to elevation positions;

and B: respectively laying 50 multiplied by 100 wood keels on the bending sample rods (14) of the warping flying rafter bottom die and the bending sample rods (15) of the eave flying rafter bottom die in the step A and binding, and nailing and laying a wood plywood bottom template with the thickness of 16mm on the wood keels as an eave rafter bottom template (10) and a warping flying rafter bottom template (11); the plane positions and elevations of the eave rafter bottom template (10) and the warping flying rafter bottom template (11) are pre-controlled through a warping-up punching starting point (9), a boundary (6), a small connecting eave warping-up punching end point (12) and a large connecting eave warping-up punching end point (13), wherein the eave rafter end sub-point (4) and the warping flying rafter end sub-point (20) can be used for finely adjusting the warping flying rafter bottom mold bending sample rod (14) and the eave rafter bottom mold bending sample rod (15) to realize the boundary and the elevation during measurement;

and C: taking the intersection point (5) of extension lines of the division lines projected on the finished cast-in-place ground in the step 5 as an original point, taking an eave rafter end division point (X, Y, Z) given by a BIM model diagram in the step 1 as a measuring point, and taking a connecting line of the two points as an eave rafter division center line (8), wherein when the point (X, Y, Z) is measured, the Z value can be finely adjusted up and down through an adjustable jackscrew at the lower part of a warping flying rafter bottom die bending sample rod (14) or an eave rafter bottom die bending sample rod (15) to meet the precision requirement of +/-3 mm; connecting adjacent measuring points to form an outer edge arc line (24) at the end of the eave rafter or an outer edge arc line (25) at the end of the tilting rafter;

step D: c, according to the central line (8) of the position of the eave rafter determined in the step C, placing and fixing a prefabricated rafter template box (7) according to the reference number, and cutting the end part of the rafter template box (7) along an outer edge arc line (24) of the end part of the eave rafter but enabling the cutting line to be perpendicular to an eave rafter bottom template (10);

step E: the eave rafter end socket arc vertical face template (16) is plugged according to the outer edge arc line (24) of the end part of the eave rafter and the cutting surface of the end part of the rafter template box (7), and is positioned and fixed by a simmered and bent eave rafter bottom die simmer bending sample rod (15);

step F: e, fixing the small eave connecting arc-shaped vertical face template (18) by offsetting 60mm inwards on the basis of the eave rafter end enclosure arc-shaped vertical face template (16) in the step E, wherein the small eave connecting arc-shaped vertical face template (18) is perpendicular to the rafter template boxes (7);

step G: installation perk fly rafter die block board (11), rafter template box (7), perk fly rafter head facade arc template (17), big company eaves arc facade template (19) with step D, E, F, the difference is: the central line (21) of the tilting flying rafter is coincided with the central line (8) of the eave rafter, and the central line (8) of the eave rafter is used as a reference to extend outwards for a horizontal distance of 800 mm.

3. The construction method of the cast-in-place concrete roof airfoil angle cornice according to claim 2, characterized in that: in the step 3, the rafter template boxes (7) are manufactured in advance in a workshop by adopting wood plywood according to the external dimension, the inclination, the angle and the twist-off degree obtained by the BIM model diagram, and the rafter template boxes (7) are stored in a classified mode according to the serial number marks.

4. The construction method of the cast-in-place concrete roof airfoil angle cornice according to claim 2, characterized in that: and 3, manufacturing the warping flying bottom die simmered bending sample rod (14) and the eave bottom die simmered bending sample rod (15) in the step 3, performing simmered bending molding on the sample rods by a phi 48 steel pipe in a workshop according to the length and the radian acquired by the BIM model diagram, and numbering marks respectively.

5. The construction method of the cast-in-place concrete roof airfoil angle cornice according to claim 2, characterized in that: and a total station is selected for measuring the positioning of the eave rafter end quantile point (4), the warping flying rafter end quantile point (20), the intersection point (5) of extension lines of the quantile lines and the warping and punching starting point (9).

6. The construction method of the cast-in-place concrete roof airfoil angle cornice according to claim 2, characterized in that: the measurement and setting of the control points and the control lines in the step 5 comprise the following steps:

step A: measuring the center line of a wing angle beam (1), the center line of a frame boundary beam (26), the boundary (6) between the main body and the wing angle plate and the intersection point (5) of the extension lines of the division lines on the cast-in-situ plate plane of the layer where the wing angle cornice plate of the main body structure is located, and marking the intersection points on the ground; simultaneously, the horizontal steel pipe of the support frame body is detected and marked;

and B: and measuring and marking a +1.00m elevation control line on the plane of the cast-in-place plate on the layer where the wing angle cornice plate is located, and simultaneously, measuring and marking the vertical rod of the support frame body.

Technical Field

The invention relates to the field of ancient buildings, in particular to a construction method of cast-in-place concrete roof airfoil angle cornice.

Background

Through data lookup, cast-in-place cornice boards are mostly adopted in modern reinforced concrete structure ancient building roof wing angle cornice construction, and after the cornice board templates are dismantled, prefabricated rafters are installed on the bottom surfaces of the cornice boards. After the method is used for forming, the effect of the wing angle cornice plate is poor, firstly, the rafter cannot be twisted, skimmed and inclined in the ancient building rafter, and is stiff after being installed, so that the smooth effect of plane and vertical double curvature cannot be achieved. And secondly, the root of the wing angle eave rafter is connected with the bottom curved surface of the wing angle eave plate and is positioned on the same cambered surface, and the bending and the warping of the wing angle eave rafter and the bottom curved surface cannot be consistent.

The wing angle eave board is required to be raised and punched out, and the wing angle eave board and the raising flying board are radially arranged, so that the gap between adjacent eave boards is wide outside and narrow inside. The existing construction method is that polystyrene boards are directly adopted to separate among rafters in the neutral position, so that deformation and dislocation during concrete pouring cannot be prevented, and the shape, size and straightness of the eave rafters cannot be guaranteed. If all the outer edges of the rafters are filled with wood plywood or wood wedges, the integrity of the outer edges of the rafters is damaged by the difficulty in form removal.

Through data inquiry, as the wing angle cornice board of the ancient building tilts up and is punched out to be continuously changed in the plane and the vertical direction, and the change complies with the corresponding rule, technical personnel in the ancient times realize the skew skimming from the material preparation, the blanking, the chopping, the planing and the sawing during the rafter making, and then install according to the incremental position one by one to realize the changed curve. When the modern building technology adopts integral cast-in-place, the ancient building process cannot be implemented, and the three-dimensional change and the characteristics of each component must be completely reflected on a drawing by adopting the modern drawing technology. In the existing drawing, AUTO CAD is used to convert each equant point of a wing angle rafter into a coordinate value in a stereo coordinate system by combining coordinates and a geometric algorithm. The size drawn by the method is not accurate enough, is not visual enough, and the detail size cannot be obtained.

Disclosure of Invention

The invention aims to provide a construction method of a cast-in-place concrete roof wing angle cornice, which aims to solve the problems of stiff appearance, unsmooth curve, uneven rafter arrangement and low construction efficiency of the wing angle cornice in the construction of the integral cast-in-place wing angle cornice in the prior art.

In order to solve the problems, the construction method of the cast-in-place concrete roof airfoil angle cornice adopts the following technical scheme:

a construction method of cast-in-place concrete roof airfoil angle cornice comprises the following construction steps:

step 1: carrying out deep design on a design drawing: determining a boundary line (6) between the front cornice plate (3) and the wing angle cornice plate (2); determining the raising height of a space curved surface of a wing angle fly-eave plate (2), the length punched out along with a wing angle beam (1), the radians of an outer edge arc line (24) of an end part of the eave beam and an outer edge arc line (25) of an end part of the wing angle fly-eave plate, and the radians of outer side contour lines of a small connecting eave arc-shaped facade template (18) and a large connecting eave arc-shaped facade template (19); determining the arrangement distance and the quantile points of the eaves rafters (202) and the tilting rafters (203), and further determining the size of the template box (7) between the rafters; determining the positions of an eave rafter parting center line (8) and a warping flying rafter parting center line (21) and the position coordinates of a warping punching starting point (9) and a junction point (5) of extension lines of parting lines; determining three-dimensional coordinates (X, Y, Z) of an eave rafter end quantile point (4) and a warping rafter end quantile point (20); building a model by adopting a BIM technology, manufacturing a real object sample plate on the basis of the BIM model on site, and installing the real object sample plate at a drawing design position to verify the effect;

step 2: and (3) according to the control point position determined in the step (1) and the parameters of the control curve, establishing a determination scheme, wherein the determination scheme comprises the following steps: selecting measuring equipment and appliances, setting reference elevation, setting control axis and setting a pilot line; drawing a guide map;

and step 3: manufacturing a wing corner beam bottom template (22) and a wing corner beam side template (23) and pre-assembling, manufacturing a rafter head arc vertical face template (16) and a tilt flying rafter head arc vertical face template (17), manufacturing a small connecting eave arc vertical face template (18) and a large connecting eave arc vertical face template (19), manufacturing a rafter template box (7), and manufacturing a tilt flying rafter bottom mold bending sample rod (14) and a tilt flying rafter bottom mold bending sample rod (15);

and 4, step 4: erecting wing angle beams and wing angle cornice plate support frames;

and 5: measuring and arranging a control point and a control line on the plane of the cast-in-place board on the layer where the wing angle cornice board is located;

step 6: installing a wing corner beam bottom template (22) and a wing corner beam side template (23); marking positions of a small connecting eave warping and punching end point (12) and a large connecting eave warping and punching end point (13) on a wing corner beam side template (23); marking a boundary (6) and a raising and punching starting point (9) on a bottom template of the body-correcting cornice (3);

and 7: installing an eave rafter bottom die bending sample rod (15), and paving an eave rafter bottom template (10); a marked eave rafter positioning center line (8) and a marked eave rafter end positioning point (4) are measured and arranged on the eave rafter bottom template (10); installing an inter-rafter template box (7); installing an arc-shaped vertical face template (16) of a rafter end socket; installing a small eave arc-shaped vertical face template (18);

mounting a warping fly rafter bottom die bending sample rod (14) and paving a warping fly rafter bottom template (11); measuring and setting a calibrated tilt fly separating point central line (21) and a tilt fly end separating point (20); installing an inter-rafter template box (7); mounting a warping-flying-beam end socket arc-shaped facade template (17) on the warping-flying-beam bottom template (11); installing a large eave arc-shaped vertical face template (19);

and 8: binding reinforcing steel bars on the wing angle cornice plate;

and step 9: integrally pouring wing angle cornice plate concrete, wherein the concrete comprises wing angle component members such as wing angle beams, eave rafters, tilt rafters, rafter top strakes and the like;

step 10: and when the concrete pouring age reaches 28 days and the strength of the on-site retention test block reaches more than 100%, integrally removing the wing angle cornice plate template.

Preferably, the step 7 of installing the bending sample rods and paving the bottom formwork specifically comprises the following steps:

step A: after the support steel pipe frame body in the step 4 is erected to be qualified, fixedly installing a warping flying bottom die bending sample rod (14) and a cornice bottom die bending sample rod (15) according to elevation positions;

and B: respectively laying 50 multiplied by 100 wood keels on the bending sample rods (14) of the warping flying rafter bottom die and the bending sample rods (15) of the eave flying rafter bottom die in the step A and binding, and nailing and laying a wood plywood bottom template with the thickness of 16mm on the wood keels as an eave rafter bottom template (10) and a warping flying rafter bottom template (11); the plane positions and elevations of the eave rafter bottom template (10) and the warping flying rafter bottom template (11) are pre-controlled through a warping-up punching starting point (9), a boundary (6), a small connecting eave warping-up punching end point (12) and a large connecting eave warping-up punching end point (13), wherein the eave rafter end sub-point (4) and the warping flying rafter end sub-point (20) can be used for finely adjusting the warping flying rafter bottom mold bending sample rod (14) and the eave rafter bottom mold bending sample rod (15) to realize the boundary and the elevation during measurement;

and C: taking the intersection point (5) of extension lines of the division lines projected on the finished cast-in-place ground in the step 5 as an original point, taking an eave rafter end division point (X, Y, Z) given by a BIM model diagram in the step 1 as a measuring point, and taking a connecting line of the two points as an eave rafter division center line (8), wherein when the point (X, Y, Z) is measured, the Z value can be finely adjusted up and down through an adjustable jackscrew at the lower part of a warping flying rafter bottom die bending sample rod (14) or an eave rafter bottom die bending sample rod (15) to meet the precision requirement of +/-3 mm; connecting adjacent measuring points to form an outer edge arc line (24) at the end of the eave rafter or an outer edge arc line (25) at the end of the tilting rafter;

step D: c, according to the central line (8) of the position of the eave rafter determined in the step C, placing and fixing a prefabricated rafter template box (7) according to the reference number, and cutting the end part of the rafter template box (7) along an outer edge arc line (24) of the end part of the eave rafter but enabling the cutting line to be perpendicular to an eave rafter bottom template (10);

step E: the eave rafter end socket arc vertical face template (16) is plugged according to the outer edge arc line (24) of the end part of the eave rafter and the cutting surface of the end part of the rafter template box (7), and is positioned and fixed by a simmered and bent eave rafter bottom die simmer bending sample rod (15);

step F: e, fixing the small eave connecting arc-shaped vertical face template (18) by offsetting 60mm inwards on the basis of the eave rafter end enclosure arc-shaped vertical face template (16) in the step E, wherein the small eave connecting arc-shaped vertical face template (18) is perpendicular to the rafter template boxes (7);

step G: installation perk fly rafter die block board (11), rafter template box (7), perk fly rafter head facade arc template (17), big company eaves arc facade template (19) with step D, E, F, the difference is: the central line (21) of the tilting flying rafter is coincided with the central line (8) of the eave rafter, and the central line (8) of the eave rafter is used as a reference to extend outwards for a horizontal distance of 800 mm.

Preferably, in the step 3, the rafter formwork boxes (7) are manufactured in advance in a workshop by adopting wood plywood according to the external dimension, the inclination, the angle and the twist-off degree obtained from the BIM model diagram, and the rafter formwork boxes (7) are stored in a classified manner according to the serial number marks.

Preferably, the production of the warping fly bottom mold bending sample rod (14) and the eave bottom mold bending sample rod (15) in the step 3 is that the bending sample rods are formed by bending phi 48 steel pipes in workshops according to the length and the radian obtained by the BIM model diagram, and the numbers of the sample rods are respectively marked.

Preferably, a total station is selected for positioning the eaves rafter end quantile point (4), the warping flying rafter end quantile point (20), the extension line intersection point (5) of the quantile lines and the warping and punching starting point (9).

Preferably, the step 5 of setting and measuring the control points and the control lines comprises the following steps:

step A: measuring the center line of a wing angle beam (1), the center line of a frame boundary beam (26), the boundary (6) between the main body and the wing angle plate and the intersection point (5) of the extension lines of the division lines on the cast-in-situ plate plane of the layer where the wing angle cornice plate of the main body structure is located, and marking the intersection points on the ground; simultaneously, the horizontal steel pipe of the support frame body is detected and marked;

and B: and measuring and marking a +1.00m elevation control line on the plane of the cast-in-place plate on the layer where the wing angle cornice plate is located, and simultaneously, measuring and marking the vertical rod of the support frame body.

The invention has the following beneficial effects:

1. firstly, the wing angle cornice board of the building of the east of the early Yu of the fine people at night is deeply designed, a building information model BIM technology is adopted during the deepening design, the problem that the wing angle cornice board is warped and the curve change of punching out is difficult to obtain parameters through conventional calculation in the case is solved, and the shapes and the characteristics of the rafter, the warped cornice, the big eave, the small eave, the strake, the sparrow and other components in the eave building technology of the ancient building are accurately and completely restored. Meanwhile, the communication effect with owners, design and construction operators is facilitated.

2. And secondly, the position of the dividing line of the eave rafter and the tilt rafter is measured by a total station (X, Y, Z) to ensure the measurement precision and accurate rafter arrangement.

3. The three-dimensional curved surface of the wing angle cornice board bottom template adopts the warping cornice bottom template bending sample rod and the cornice bottom template bending sample rod, the effect of the wing angle cornice board bottom template is good, because the sample rod is bending on a lathe, the accuracy is higher, and the use is convenient.

4. Workshop batch production is carried out to template box between rafters, has improved the preparation precision of rafter box template, and then has guaranteed that wing angle rafter, perk fly rafter turn round to throw oblique ancient building characteristic, have still improved the work efficiency.

5. The concrete wing angle cornice board of the building of the style of eastern juniper of early Henan of the fine people at night formed by the invention has the advantages of consistent and symmetrical spatial curvature of the cornice board, consistent section size of the wing angle rafters, uniform interval change, symmetrical arrangement of the wing angles, smooth and straight line and plane and good concrete impression. The construction process is simple and quick, reduces the quality requirement on workers, saves labor cost, greatly improves labor productivity, meets the requirement of short construction period, realizes the aim of the construction period and creates economic benefit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of a wing-shaped angle cornice of the present invention.

Fig. 2 is a top view of the wing angle cornice of the present invention.

Fig. 3 is a schematic structural view of a wing angle cornice plate.

Fig. 4 is a schematic diagram of various control points and control lines.

The reference numbers in the figures illustrate: 1-wing angle beam, 2-wing angle eave plate, 201-roof plate, 202-eave beam, 203-tilted eave, 204-small eave, 205-large eave, 3-upright eave plate, 4-eave end split point, 5-split line extension line intersection point, 6-split line, 7-rafter template box, 8-eave split center line, 9-tilt punch starting point, 10-eave bottom template, 11-tilt bottom template, 12-small eave start point, 13-large eave tilt punch ending point, 14-vertical face tilt bottom template simmer bending sample rod, 15-eave bottom template simmer bending sample rod, 16-eave end cover arc template, 17-tilt end cover arc template, 18-small eave template, 19-large eave connecting arc template, 20-end parting points of the tilt rafters, 21-center lines of the tilt rafters, 22-base templates of the wing angle beams, 23-side templates of the wing angle beams, 24-outer edge arcs of the end parts of the eaves rafters, 25-outer edge arcs of the end parts of the tilt rafters and 26-edge beams.

Detailed Description

In order to make the technical purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention are further described below with reference to the accompanying drawings and specific embodiments.

The construction method in the embodiment is mainly used for the wing-shaped angle cornice of the roof of the late Qingming early Yudong style building, and the building has the following characteristics: 1. the corner of the roof of the intermittent mountain is respectively at an angle of 45 degrees with the boundary beam on the front surface and the side surface of the building, and a wing corner beam (1) is obliquely arranged along with the slope lifting frame, and the corner beam is formed by overlapping a rear half section of an old corner beam and a front half section of a young corner beam. 2. The wing angle beam is centered, and two sides of the wing angle beam are symmetrically provided with wing angle eave boards (comprising wing angle rafters, tilting rafters and other members). 3. Eaves rafters (202) of wing angle roof beam both sides increase the inclination in proper order from the true rafter of imitative clear building and lay to it chooses (called out) to lengthen gradually along with the old angle roof beam, raises gradually simultaneously and picks up to the epithelial height of old angle roof beam (called to rise and warp). 4. The front ends of the tilting rafters (203) at the two sides of the wing angle beam (1) are required to be gradually tilted to a specified height along with the tilting of the corner beam except for being lifted (tilted) along with the wing angle beam and being lengthened to be picked (flushed out). 5. The cornice on both sides of the wing angle beam has two thicknesses, one is a 490mm thick plate on the cornice (202), and the other is a 260mm thin plate on the tilt rafter (203). The bottom surface of the thick plate or the thin plate is gradually raised and tilted upwards due to the eave rafter or the tilting rafter, and is outwards raised and turned aside to form a space curved surface; the outer edge of the thick plate or the thin plate is a spatial arc-shaped vertical surface curve formed by raising and raising the rafter or the raised fly rafter gradually and extending the rafter, if the arc-shaped vertical surface curve is on the end of the rafter, the curve is called a small eave (204), and if the curve is on the end of the raised fly rafter, the curve is called a large eave (205). 6. Rafters under the cornice plates on two sides of the wing corner beam are divided into an eave rafter (202) and a tilting rafter (203), planes of the rafters are arranged between the wing corner beam and the right rafter in a radial mode, and the convergence intersection point of the rear extension lines and the tail extension lines of all the rafters is a branch line extension line intersection point (5). The rafters are arranged according to the rules of the Qing style construction rules. The tilting rafter sublevel is superposed with the eave rafter sublevel. When seen from the vertical surface of the wing-shaped corner of the building, the exposed side-by-side rafters naturally form a slightly upward curve. 7. The eave rafter head and the tilted fly rafter head extend 60mm from the small connecting eave and the large connecting eave, and the extending parts are called as sparrows.

A construction method of cast-in-place concrete roof airfoil angle cornice comprises the following construction steps:

step 1: carrying out deep design on a design drawing: determining a boundary line (6) between the front cornice plate (3) and the wing angle cornice plate (2); determining the raising height of a space curved surface of a wing angle fly-eave plate (2), the length punched out along with a wing angle beam (1), the radians of an outer edge arc line (24) of an end part of the eave beam and an outer edge arc line (25) of an end part of the wing angle fly-eave plate, and the radians of outer side contour lines of a small connecting eave arc-shaped facade template (18) and a large connecting eave arc-shaped facade template (19); determining the arrangement distance and the quantile points of the eaves rafters (202) and the tilting rafters (203), and further determining the size of the template box (7) between the rafters; determining the positions of an eave rafter parting center line (8) and a warping flying rafter parting center line (21) and the position coordinates of a warping punching starting point (9) and a junction point (5) of extension lines of parting lines; determining three-dimensional coordinates (X, Y, Z) of an eave rafter end quantile point (4) and a warping rafter end quantile point (20); building a model by adopting a BIM technology, manufacturing a real object sample plate on the basis of the BIM model on site, and installing the real object sample plate at a drawing design position to verify the effect;

step 2: and (3) according to the control point position determined in the step (1) and the parameters of the control curve, establishing a determination scheme, wherein the determination scheme comprises the following steps: selecting measuring equipment and appliances, setting reference elevation, setting control axis and setting a pilot line; drawing a guide map;

and step 3: manufacturing a wing corner beam bottom template (22) and a wing corner beam side template (23) and pre-assembling, manufacturing a rafter head arc vertical face template (16) and a tilt flying rafter head arc vertical face template (17), manufacturing a small connecting eave arc vertical face template (18) and a large connecting eave arc vertical face template (19), manufacturing a rafter template box (7), and manufacturing a tilt flying rafter bottom mold bending sample rod (14) and a tilt flying rafter bottom mold bending sample rod (15);

and 4, step 4: erecting wing angle beams and wing angle cornice plate support frames;

and 5: the method comprises the following steps of (1) measuring and setting control points and control lines on the plane of a cast-in-place board on a layer where a wing angle cornice board is located, and mainly comprising the following two steps:

firstly, measuring a central line of a wing angle beam (1), a central line of a frame boundary beam (26), a boundary line (6) between a main body and a wing angle plate and an intersection point (5) of extension lines of a dividing line on a cast-in-situ plate plane of a layer where the wing angle cornice plate of a main structure is located, and marking the intersection points on the ground; simultaneously, the horizontal steel pipe of the support frame body is detected and marked;

and then, measuring and setting a +1.00m elevation control line and marking on the plane of the cast-in-place plate on the layer where the wing angle cornice plate is located, and simultaneously measuring and marking on the vertical rod of the support frame body.

Step 6: installing a wing corner beam bottom template (22) and a wing corner beam side template (23); marking positions of a small connecting eave warping and punching end point (12) and a large connecting eave warping and punching end point (13) on a wing corner beam side template (23); marking a boundary (6) and a raising and punching starting point (9) on a bottom template of the body-correcting cornice (3);

and 7: installing an eave rafter bottom die bending sample rod (15), and paving an eave rafter bottom template (10); a marked eave rafter positioning center line (8) and a marked eave rafter end positioning point (4) are measured and arranged on the eave rafter bottom template (10); installing an inter-rafter template box (7); installing an arc-shaped vertical face template (16) of a rafter end socket; and installing a small eave-connecting arc-shaped vertical face template (18).

Mounting a warping fly rafter bottom die bending sample rod (14) and paving a warping fly rafter bottom template (11); measuring and setting a calibrated tilt fly separating point central line (21) and a tilt fly end separating point (20); installing an inter-rafter template box (7); mounting a warping-flying-beam end socket arc-shaped facade template (17) on the warping-flying-beam bottom template (11); and installing a large eave arc-shaped vertical face template (19).

And 8: binding reinforcing steel bars on the wing angle cornice plate;

and step 9: the integrally cast wing angle cornice plate concrete comprises concrete of wing angle component members such as wing angle beams, eave rafters, tilt rafters, rafters and the like.

Step 10: and when the concrete pouring age reaches 28 days and the strength of the on-site retention test block reaches more than 100%, integrally removing the wing angle cornice plate template.

Wherein, install the bending over a slow fire appearance pole and lay the die block board in step 7 and specifically include the following step:

step A: after the support steel pipe frame body in the step 4 is erected to be qualified, fixedly installing a warping flying bottom die bending sample rod (14) and a cornice bottom die bending sample rod (15) according to elevation positions;

and B: respectively laying 50 multiplied by 100 wood keels on the warping flying rafter bottom die bending sample rods (14) and the eaves rafter bottom die bending sample rods (15) in the step A, binding, and nailing and laying a wood plywood bottom template (10) (11) with the thickness of 16mm on the wood keels; the plane positions and elevations of the eave rafter bottom template (10) and the warping flying rafter bottom template (11) are pre-controlled through a warping-up punching starting point (9), a boundary (6), a small connecting eave warping-up punching end point (12) and a large connecting eave warping-up punching end point (13), wherein the eave rafter end sub-point (4) and the warping flying rafter end sub-point (20) can be used for finely adjusting the warping flying rafter bottom mold bending sample rod (14) and the eave rafter bottom mold bending sample rod (15) to realize boundary and elevation control during measurement;

and C: taking the intersection point (5) of extension lines of the division lines projected on the finished cast-in-place ground in the step 5 as an original point, taking an eave rafter end division point (X, Y, Z) given by a BIM model diagram in the step 1 as a measuring point, and taking a connecting line of the two points as an eave rafter division center line (8), wherein when the point (X, Y, Z) is measured, the Z value can be finely adjusted up and down through an adjustable jackscrew at the lower part of a warping flying rafter bottom die bending sample rod (14) or an eave rafter bottom die bending sample rod (15) to meet the precision requirement of +/-3 mm; connecting the adjacent measured eave rafter end parting points (X, Y, Z) to form an outer edge arc line (24) of the end of the eave rafter or an outer edge arc line (25) of the end of the tilting rafter; and (4) positioning the measuring points by using a total station instrument.

Step D: and C, placing and fixing a prefabricated rafter template box (7) according to the eave rafter split center line (8) determined in the step C and the reference number, and cutting the end part of the rafter template box (7) along an outer edge arc line (24) of the end part of the eave rafter but enabling the cutting line to be perpendicular to the eave rafter bottom template (10).

Step E: the eave rafter end socket arc vertical face template (16) is plugged according to the outer edge arc line (24) of the end part of the eave rafter and the cutting surface of the end part of the rafter template box (7), and is positioned and fixed by a simmered and bent eave rafter bottom die simmer bending sample rod (15);

step F: e, fixing the small eave connecting arc-shaped vertical face template (18) by offsetting 60mm inwards on the basis of the eave rafter end enclosure arc-shaped vertical face template (16) in the step E, wherein the small eave connecting arc-shaped vertical face template (18) is perpendicular to the rafter template boxes (7);

step G: installation perk fly rafter die block board (11), rafter template box (7), perk fly rafter head facade arc template (17), big company eaves arc facade template 19 with step D, E, F, the difference is: the central line (21) of the tilting flying rafter is coincided with the central line (8) of the eave rafter, and the central line (8) of the eave rafter is used as a reference to extend outwards for a horizontal distance of 800 mm.

In the step 3, the rafter template boxes (7) are manufactured in advance in a workshop by adopting wood plywood according to the external dimension, the inclination, the angle and the twist-off degree obtained by the BIM model diagram, and the rafter template boxes (7) are stored in a classified mode according to the serial number marks.

And 3, manufacturing the warping flying bottom die simmered bending sample rod (14) and the eave bottom die simmered bending sample rod (15) in the step 3, performing simmered bending molding on the sample rods by a phi 48 steel pipe in a workshop according to the length and the radian acquired by the BIM model diagram, and numbering marks respectively.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto, and any equivalent substitutions and modifications or partial substitutions made without departing from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.