Construction method of double-curved-surface reinforced concrete roof

Abstract

The invention discloses a construction method of a double-curved-surface reinforced concrete roof in the technical field of building construction, a thickness adjuster and a height limiting net are additionally arranged, the thickness of poured concrete can be limited and marked, an anti-cracking layer can be formed on the concrete, the flatness of the top of the poured concrete can be improved, the top of the poured concrete cannot be uneven, and the construction efficiency is improved. The fine concrete flowing towards the lower position can be intercepted through the flow stopping net, so that the concrete is solidified and formed according to the designed thickness and shape after being poured; in addition, according to the construction method, the profiled steel sheet can be poured in different areas, an isolation belt is poured in advance during construction, the whole building roof can be effectively limited, it is ensured that a smooth curved surface is formed by pouring of the top of the roof, the construction mode is simple and easy to operate, concrete can be vibrated after construction, the structure is compact and firm, and the construction efficiency is improved. And the concrete does not flow everywhere during pouring, so that the roof is smooth and uniform in thickness.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a construction method of a hyperbolic steel-concrete roof. Background Art

[0002] In some large public buildings, in order to express the architecture and connotation, they need to have beautiful shapes and unique landmark buildings. Often, the roof of the building needs to be curved. In some buildings, the roof of the building is made into a hyperbolic roof shape for the appearance requirements. The hyperbolic roof is generally supported by a single curved steel beam, and a corrugated corrugated steel plate is installed on the top of the single curved steel beam. The peaks and troughs of the corrugated steel plate are used to adapt to the curved surface of the steel beam. The second corrugated steel plate needs to be set at an angle to support the laying of the curved surface on the other side, so that it presents a hyperbolic shape in the space. The corrugated steel plate is used as the bottom mold of the upper concrete, and then concrete is laid on the top of the corrugated steel plate to form a hyperbolic shape of the concrete.

[0003] The upper load of the corrugated steel sheet is carried, and the transmission path is that the permanent load and the active load of the roof are transmitted to the corrugated steel sheet, and the corrugated steel sheet then transmits the roof construction load to the secondary beam of the steel structure, the secondary beam of the steel structure transmits it to the main beam, and the main beam transmits it to the steel column, so as to achieve the purpose of stable support for the building.

[0004] This kind of inclined building top roof needs to have a curved surface, which can only be formed by pouring concrete formwork, and the top of the roof must be manually shaped into the required shape by pouring the concrete.

[0005] When pouring this type of concrete, because the bottom membrane on the top of the roof is curved, the concrete will flow downward due to gravity, especially some finer concrete, which has stronger fluidity. After pouring for a period of time, the granular aggregates such as sand and gravel basically remain static, while the water and fine concrete will flow downward and it is difficult to form according to the set thickness. This will cause the concrete at high places to lose some support, and may cause partial or overall collapse and flow downward. The poured concrete cannot reach the preset thickness, and the concrete cannot even be poured and formed normally on the curved surface with a large height difference.

[0006] Based on this, the present invention designs a construction method of a hyperbolic steel-concrete roof to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a construction method for a hyperbolic steel-concrete roof. The device adds a thickness regulator and a height limiting net, which can limit and mark the thickness of the poured concrete, form an anti-cracking layer for the concrete, and improve the flatness of the top of the poured concrete without unevenness. The stop net can also be used to intercept the fine concrete flowing to the lower place, so that the concrete can be solidified and formed according to the designed thickness and shape after pouring; and the construction method can cast the corrugated steel plate in different areas, and an isolation belt is pre-cast during construction, which can effectively limit the entire building roof and ensure that the top of the roof is cast to form a smooth curved surface.

[0008] The present invention is implemented as follows: a construction method for a hyperbolic steel-concrete roof comprises the following steps:

[0009] Step S1, measuring the area of ​​the roof that needs to be poured in a single time on the top of the corrugated steel sheet, and measuring the curvature of the curved surface of the roof. If the area that needs to be poured in a single time reaches 100 square meters, an isolation zone needs to be set, and step 2 is performed;

[0010] If the single pouring area is less than 100 square meters, the curvature is less than 30°, and the concrete slump is low and does not flow, proceed to step 4;

[0011] Step S2, calculating the position of the isolation belt, the isolation belt is a long strip protrusion crisscrossed, and a plurality of isolation belts are staggered to form a square interval, the width s of the isolation belt is 1.5 meters, and the interval width d between the mutually parallel isolation belts is 10 meters, and the data is used for lofting;

[0012] Step S3, building a template according to the layout size, pouring concrete within the template range of the isolation zone, and tamping it until it solidifies and forms;

[0013] Step S4, installing a plurality of thickness adjusters on the top of the corrugated steel sheet of the building according to the casting area, wherein the plurality of thickness adjusters are distributed in a rectangular shape, and the spacing between adjacent thickness adjusters does not exceed 10 meters;

[0014] Step S5, pouring concrete between the isolation zones and vibrating to form a shallow pouring layer, wherein the concrete thickness of the shallow pouring layer is the height difference between the crest panel and the trough panel of the corrugated steel plate, and the shallow pouring layer completely covers the corrugated steel plate and is vibrated and smoothed;

[0015] Step S6, after at least 30 minutes of rest, a second pouring is performed, and a height limiting net and a flow stopping net are laid on the thickness adjuster, wherein the height limiting net is installed on the top of the height limiting rod of the thickness adjuster, and the height limiting net is spread along the roof and clamped between the water stop clamp ring and the top locking plate, and the spreading height of the height limiting net is adjusted by the position of the water stop clamp ring and the top locking plate until the design thickness of the concrete roof and the shape of the roof arc meet the design height;

[0016] Step S7, if there is no obstruction at the lower end of the concrete pouring in the shallow pouring layer, vertically pull the stopper net on the lower side of the pouring area to block the concrete from flowing downward;

[0017] Step S8, then pouring concrete on the top of the entire shallow pouring layer until it contacts the height limiting net, and the poured concrete forms a shaping surface layer, and the shaping surface layer contacts the bottom of the height limiting net;

[0018] Step S9, after the shaping surface layer is poured, there is a technical break of 1 hour, and the surface is polished with a grinder, and the concrete is vibrated and compacted to complete the pouring of the roof on the top of the building.

[0019] Furthermore, the method further comprises step S10 of dismantling the height limiting net, cutting off the height limiting rod extending out from the top of the shaping surface layer, filling the holes left on the shaping surface layer after dismantling the height limiting net, and filling and leveling all the holes in the shaping surface layer.

[0020] Furthermore, if any width or length of the range of a single concrete pouring reaches 10 meters, step 2 is performed to set up an isolation zone.

[0021] Furthermore, the height of the height-limiting net shall not exceed 2 cm from the roof design;

[0022] The shaping surface layer does not cover the height limiting net

[0023] The height limiting net and the flow stopping net are both wire meshes;

[0024] The number of mesh holes of the height-limiting net shall not be less than 1000 per square meter;

[0025] The diameters of the water stop clamp ring and the top locking plate are larger than the aperture of any mesh of the height limiting net;

[0026] The number of mesh holes of the flow-stopping net is not less than 1200 per square meter;

[0027] The flow-stopping net is locked on the height-limiting rod through a buckle; a flow-stopping net is detachably installed vertically between any two height-limiting rods.

[0028] Further, the thickness adjuster includes a top locking plate, a water stop clamp ring, a height limiting rod, a water stop plug and a fixing plate;

[0029] The top locking plate and the fixing plate are both flat plates, and the fixing plate is fitted and fixed on the corrugated steel plate;

[0030] The height limiting rod is a threaded rod, and the height limiting rod is vertically fixed on the top of the fixing plate;

[0031] The top lock plate and the water stop clamp ring are both flat plates, and the top lock plate and the water stop clamp ring are both installed on the height limit rod in a manner that they can be raised and lowered through threads;

[0032] The water stop plug is a rubber plug, and the water stop plug is installed on the height limit rod through threads;

[0033] The top locking plate, water stop plug, water stop clamp ring and fixing plate are arranged on the height limit rod in sequence from top to bottom;

[0034] The height limiting net is sleeved on the height limiting rod, and the height limiting net is stably clamped between the water stop clamp ring and the top locking plate;

[0035] The top locking plate, water stop clamp ring and fixing plate are all circular flat plates;

[0036] The axes of the top locking plate, the water stop clamp ring, the height limiting rod and the fixing plate coincide with each other;

[0037] The fixing plate is locked on the corrugated steel plate by rivets;

[0038] The top of the water-stop plug is closed, and the top of the water-stop plug is also wrapped with a sponge protective pad. The water-stop plug is a truncated cone-shaped rubber plug with a larger top and a smaller bottom. A threaded hole is opened inside the water-stop plug. The top of the water-stop plug is a truncated cone plane, and the circular diameter of the top of the water-stop plug is not less than 3 cm.

[0039] The water stop plug is clamped at the bottom of the height limiting net.

[0040] The beneficial effects of the present invention are as follows: 1. The construction method adds an isolation belt, through which the entire building roof is divided into a plurality of different areas, and the concrete is poured in different areas, so that the entire roof can be poured more evenly, and the concrete can be prevented from flowing everywhere, ensuring that the concrete is confined to a larger range, which is convenient for vibrating and compacting the concrete, and the concrete can be poured in different layers, and then the height limiting net is used for limiting the paving, so that the roof slump formed by the final concrete pouring is low, and the concrete does not flow;

[0041] 2. This device also adds a thickness regulator, which clamps the height limit net through the water stop clamp ring and the top lock plate, and the water stop clamp ring and the top lock plate can be adjusted in height on the height limit rod, so that this device can easily limit the thickness of concrete, and can also flexibly adjust the pouring thickness of concrete according to the actual construction and design changes. It is easy to use, and the height limit rod is cast in the concrete as a whole, forming a vertical skeleton, which can also strengthen the entire concrete pouring structure;

[0042] 3. This device also adds a flow-stopping net, which can directly intercept and lock the concrete at the lower part, ensuring that the concrete structure will not overflow in large quantities, and that the sides of the poured concrete can be fully formed, so that the concrete structure can solidify according to the set shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0044] Figure 1 It is a schematic diagram of the laying structure of the corrugated steel plate of the building structure of the present invention;

[0045] Figure 2 It is a schematic diagram of the structure of the connecting piece of the present invention on the corrugated steel plate;

[0046] Figure 3 It is a schematic diagram of the structure of the connecting piece of the present invention on the corrugated steel plate from another angle;

[0047] Figure 4 This is a schematic diagram of the isolation zone distribution structure of the present invention;

[0048] Figure 5 It is a schematic diagram of the paving structure of height-limiting nets of different sizes on a shallow pouring layer of the present invention;

[0049] Figure 6 This is a schematic diagram of the structure of the height limiting net on the corrugated steel plate of the present invention;

[0050] Figure 7 It is a schematic diagram of the structure of the thickness regulator of the present invention;

[0051] Figure 8 It is a schematic diagram of the structure of the connecting piece of the present invention;

[0052] Fig. 9 It is a schematic diagram of concrete forming of the shaping surface layer of the present invention;

[0053] Fig.10 It is a top view schematic diagram of the spreading state of the isolation zone and the shallow pouring layer of the present invention.

[0054] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0055] 1-thickness adjuster, 11-top locking plate, 12-waterstop clamp ring, 13-height limit rod, 14-waterstop plug, 15-fixed plate, 2-height limit net, 21-flow stop net, 3-corrugated steel plate, 31-curved beam, 32-column, 4-anchor plate, 41-side sealing plate, 42-top sealing plate, 43-bolt, 5-isolation belt, 51-shallow pouring layer, 52-shaping surface layer. DETAILED DESCRIPTION

[0056] See also Figures 1 to 10 As shown, the present invention provides a construction method for a hyperbolic steel-concrete roof. In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods of the specification.

[0057] In a specific embodiment of the technical solution of the present invention:

[0058] The building structure includes: a corrugated steel plate 3, a curved beam 31 and a column 32, the column 32 is a pile foundation column, the curved beam 31 is a bent I-beam, and the curved beam 31 is fixedly welded to the top of the column 32; a plurality of connecting pieces are arranged in a rectangular array on the corrugated steel plate 3, and the trough plate surface of the corrugated steel plate 3 is fixedly welded to the top of the curved beam 31 through the connecting pieces, the corrugated steel plate 3 is inclined, and the corrugated steel plate 3 is inclined in a curved surface, and the inclination direction is arranged along the longitudinal line of the crest and trough of the corrugated steel plate 3, that is, the same crest or the same trough has one end higher and the other end lower, so that the corrugated steel plate 3 forms an arc surface and fits the curved beam 31.

[0059] The connecting parts include: an anchor plate 4, a bolt 43, a side panel 5 and an upper panel 51;

[0060] The anchor plate 4 is a flat plate, and the lower edge of the anchor plate 4 and the corrugated steel plate 3 are an integrally connected structure. The support and erection of the corrugated steel plate 3 and the curved beam 31 are open, and the bottom of the anchor plate 4 is tightly fitted with the top of the curved beam 31. The anchor plate 4 is a partial plate cut at the concave part of the corrugated steel plate 3, and the anchor plate 4 and the corrugated steel plate 3 are not completely cut off, but the left and right sides are cut off, the top side close to the high place is cut off, and the low side remains connected. A side sealing plate 41 is set on each of the left and right sides of the anchor plate 4, and the anchor plate 4 and the side sealing plates 41 are connected to form an integral structure;

[0061] A top sealing plate 42 is also provided on the upper side of the anchor plate 4. The anchor plate 4, two side sealing plates 41 and a top sealing plate 42 form a closed groove with a top opening. The two side sealing plates 41 are respectively sealed and fitted with the left and right sides of the opening of the corrugated steel plate 3. The top sealing plate 42 is pressed and fitted with the upper side cover of the opening of the corrugated steel plate 3. The opening of the corrugated steel plate 3 is closed and isolated by the anchor plate 4, the side sealing plates 41 and the top sealing plate 42.

[0062] Two side sealing plates 41 and a top sealing plate 42 are welded to the top of the corrugated steel plate 3;

[0063] The gap between the anchor plate 4 and the corrugated steel plate 3 is sealed by welding the side sealing plate 41 and the top sealing plate 42. It is ensured that the anchor plate 4 and the corrugated steel plate 3 are seamlessly connected and completely isolated to form the inner and outer sides of the building.

[0064] A plurality of studs 43 are arranged on the anchor plate 4, and the anchor plate 4 and the curved beam 31 are welded to form an integral force-bearing structure through the studs 43; the studs 43 are located in a closed groove at the top of the anchor plate 4, and the studs 43 are shear studs.

[0065] The length of the stud 43 is less than the height difference between the peak plate surface and the trough plate surface of the corrugated steel plate 3. The corrugated steel plate 3 is a convex peak plate surface, and the adjacent plate is a concave trough plate surface, and the peak plate surface and the trough plate surface are sequentially connected in parallel to form a complete corrugated steel plate 3, ensuring that the top of the stud 43 does not extend upward above the corrugated steel plate 3, so as to avoid the situation where the stud 43 is exposed after concrete pouring;

[0066] The bolt 43 penetrates the anchor plate 4 and is welded to the curved beam 31; the bottom surface of the anchor plate 4 is welded to the top plane of the flange of the curved beam 31;

[0067] The thickness limiting device comprises: a thickness regulator 1, a height limiting net 2 and a flow stopping net 21;

[0068] The corrugated steel plate 3 is a flexible corrugated plate; the corrugated steel plate 3 is tilted along the axial direction of the corrugated groove; a plurality of thickness adjusters 1 are fixedly arranged on the wave crest plate surface of the corrugated steel plate 3, and the corrugated steel plate 3 is connected between the thickness limiting device and the building structure to transfer the load, and transfer the concrete structure load on the top of the corrugated steel plate 3 to the curved beam 31 and the column 32, so as to achieve the load-bearing effect;

[0069] The height limiting net 2 and the flow stopping net 21 are both flexible flat mesh plates; the height limiting net 2 is a wire mesh; the number of mesh holes of the height limiting net 2 is not less than 1000 per square meter. The flow stopping net 21 is a perforated mesh plate, and the number of mesh holes of the flow stopping net 21 is not less than 1200 per square meter.

[0070] The diameters of the water stop clamp ring 12 and the top locking plate 11 are larger than the aperture of any mesh of the height limiting net 2;

[0071] The diameter of the height limiting rod 13 is also larger than the aperture of the height limiting net 2, but in order to install it, the wire mesh needs to be cut or penetrated and installed and inserted, which can also wrap it more tightly, and adding a water-stop clamp ring 12 can seal the penetration or cut to avoid large-scale overflow.

[0072] The height limiting net 2 can be detachably locked on the top of the thickness adjuster 1, and the height limiting net 2 is spread directly above the corrugated steel plate 3 through the thickness adjuster 1 without contact;

[0073] The stopper net 21 is detachably locked vertically on the thickness adjuster 1 by means of a lock buckle;

[0074] The thickness adjuster 1 includes a top locking plate 11, a water-stop clamp ring 12, a height-limiting rod 13, a water-stop plug 14 and a fixing plate 15; the top locking plate 11 and the fixing plate 15 are both flat plates, and the fixing plate 15 is fitted and fixed on the corrugated steel plate 3 and fixed on the raised wave crest plate of the corrugated steel plate 3; the top locking plate 11, the water-stop clamp ring 12 and the fixing plate 15 are all circular flat plates;

[0075] The top of the water stop plug 14 is closed, and the top of the water stop plug 14 is also wrapped with a sponge protective pad. The water stop plug 14 is a truncated cone-shaped rubber plug with a larger top and a smaller bottom. A threaded hole is opened inside the water stop plug 14. The water stop plug 14 is installed and adjusted on the height limit rod 13 through the threaded hole. The top of the water stop plug 14 is a circular plane, and the diameter of the top circular plane of the water stop plug 14 is not less than 3 cm.

[0076] The water-stop plug 14 is clamped at the bottom of the height-limiting net 2, and the lower end of the water-stop plug 14 is fitted with the top of the top locking plate 11, and the water-stop plug 14 is limited. The sponge on the top of the water-stop plug 14 and the closed structure can not only clamp the height-limiting net 2, but also prevent the top of the height-limiting rod 13 from extending outside through the top locking plate 11, thereby preventing people from accidentally falling and being stabbed during construction. Therefore, the water-stop plug 14 can not only play a role in water stopping, but also play a role in protection.

[0077] The axes of the top locking plate 11, the water stop clamp ring 12, the height limit rod 13 and the fixed plate 15 coincide with each other; to ensure that the overall installation is more accurate, the positioning is based on the axis of the height limit rod 13, and deviations are allowed. The device does not require high accuracy, and the installation and locking position of the fixed plate 15 on the corrugated steel plate 3 can be flexibly adjusted according to actual construction requirements. During construction, according to the actual height limit surface requirements.

[0078] The fixing plate 15 is locked on the corrugated steel plate 3 by rivets, and can also be fixed by welding. As long as the fixing plate 15 is fixed on the corrugated steel plate 3, the fixing plate 15 plays the role of positioning the height limit rod 13, and the height limit rod 13 not only plays the role of positioning and adjustment, but also can form a reinforcing rod structure after the concrete is poured and formed, which plays the role of internal steel bars of concrete and can also increase the overall bearing capacity of concrete.

[0079] The height limiting rod 13 is a threaded rod, and the height limiting rod 13 is vertically fixed on the top of the fixing plate 15, that is, the fixing plate 15 is arranged at the lower end of the height limiting rod 13, and the height limiting rod 13 and the fixing plate 15 are welded into an integral structure;

[0080] The top locking plate 11 and the water stop clamp ring 12 are both flat plates, and both the top locking plate 11 and the water stop clamp ring 12 are installed on the height limiting rod 13 through threads so as to be able to be raised and lowered;

[0081] The water stop plug 14 is a rubber plug, and the water stop plug 14 is installed on the height limiting rod 13 through threads;

[0082] The top locking plate 11, the water stop plug 14, the water stop clamp ring 12 and the fixing plate 15 are arranged on the height limiting rod 13 in sequence from top to bottom;

[0083] The height limiting net 2 is sleeved on the height limiting rod 13 , and the height limiting net 2 is stably clamped between the water stop clamp ring 12 and the top locking plate 11 .

[0084] The flow-stop net 21 is locked on the height limit rod 13 by a buckle; a flow-stop net 21 is vertically installed between any two height limit rods 13 and can be removed, and the buckle is an annular spring buckle. Through this structure, the flow-stop net 21 can be easily disassembled and assembled on the height limit rod 13. It is only necessary to place the flow-stop net 21 vertically, and then buckle the mesh of the flow-stop net 21 with the height limit rod 13 at different heights. If a tighter locking relationship is required, the flow-stop net 21 can be tied to the height limit rod 13 with wire, or even the flow-stop net 21 can be directly welded to the height limit rod 13 to ensure that the flow-stop net 21 is set vertically to be able to stop the flow of concrete.

[0085] It should be noted that:

[0086] 1. The flow of concrete does not start from the bottom, but the top layer of concrete flows downward, exposing the concrete previously inside, and flows downward again, causing the concrete to form a mudslide-like state and flow continuously from high to low, making it difficult for the concrete to solidify according to the set thickness. The device can cover the top plane of the poured concrete through the height limiting net 2 to ensure that the top of the newly poured concrete is restricted by the height limiting net 2, thereby ensuring that the top of the concrete does not flow to the lower part, but is restricted to keep the fixed position solidified;

[0087] 2. When pouring concrete on an inclined surface, the concrete in the lowest vertical section is easy to leak out and flow, resulting in failure to form. Generally, a template is needed to pour in batches. However, such pouring is blocked by wooden templates on all sides. After solidification, gaps will form with adjacent concrete. Without templates, it will not be able to form. The difference in the order of pouring before and after pouring will easily cause height unevenness and cold joints. The method of interval pouring is as follows: Figure 2 As shown, these are all problems encountered in construction. The device uses a flow-stopping net 21, which can be bound with the height-limiting rod 13 to limit the position, and all the concrete can be poured completely at the same time. Figure 3The state shown can be poured in one time, and can also form partitions during the same pouring, thereby limiting the fluidity of the concrete. In addition, the one-time pouring can be smoothed and vibrated at one time to ensure the compactness of the concrete structure, avoid the uneven state formed by pouring in sequence, and avoid cold joints. The poured flow-stop net 21 can be pulled out and reused when the concrete is almost solidified, or it can be directly left in the concrete to form a reinforced structure to increase the structural strength of the concrete. It is convenient and flexible to use, the one-time formed structure has high strength, and the concrete has strong integrity.

[0088] 4. The corrugated steel plate 3 is a wavy concave-convex surface, so that the corrugated steel plate 3 can be bent along the concave-convex fold direction, so as to form a shape similar to the designed curved surface for support, forming a bottom mold for concrete pouring. Only when the corrugated steel plate 3 is bent can the architectural curved surface effect be achieved, and the non-folded direction of the corrugated steel plate 3 cannot be bent, and can only be supported straight, which leads to an angle between the top of the curved beam 31 and the corrugated steel plate 3. In the existing structure, the corrugated steel plate 3 is straight and tilted on the curved beam 3. 1, the contact surface between the two is very small, and only the corner of the curved beam 31 is supported, and the load cannot be effectively transmitted, resulting in a wedge-shaped gap with a triangular cross-section between the corrugated steel plate 3 and the building, resulting in insufficient support force of the corrugated steel plate 3. All welding is done by bolts 43, resulting in low structural strength. The present device is completely different. Instead, the connection of the corrugated steel plate 3 is cut in the left and right directions and the top to form an anchor plate 4, and the anchor plate 4 is pressed down to form a flat plate that fits the curved beam 31, such as Fig.10 As shown, the bolt 43 on the top of the anchor plate 4 passes through the corrugated steel plate 3 and is firmly welded to the curved beam 31 to form a connecting member that integrates the three components into an integral structure.

[0089] Moreover, in the existing structure, the lower end of the bolt 43 penetrates the corrugated steel plate 3 and is exposed in the wedge-shaped gap, which is easy to rust. However, the bolt 43 of the present device is welded inside the anchor plate 4 and is welded as a whole with the top of the curved beam 31 at the same time. The main body of the bolt 43 is above the corrugated steel plate 3 and is finally cast and buried in concrete to prevent contact with air, so that the bolt 43 of the present device is not easy to rust, and the structural strength and durability are better.

[0090] When the building structure is erected, the present invention is installed by first installing basic supporting components such as the curved beam 31 and the columns 32, and then taking the corrugated steel plate 3. The length of the corrugated steel plate 3 needs to meet the design requirements, and a smaller corrugated steel plate 3 can also be selected according to actual lifting requirements. Multiple corrugated steel plates 3 can be spliced ​​into a complete roof support floor, and the parts between the corrugated steel plate 3 and the curved beam 31 that need to be connected and supported are cut, and the left and right sides and the inclined upper side edges of the parts that need to be supported and connected are cut. The lower side of the anchor plate 4 is maintained connected to the corrugated steel plate 3 as an overall structure, and then it is pressed down and bent to form the anchor plate 4, and the bottom of the anchor plate 4 is fitted with the flange plate at the top of the curved beam 31.

[0091] Then, the bolt 43 is taken out, and the bolt 43, the anchor plate 4 and the profiled steel plate 3 are welded as a whole, ensuring that the weld penetrates the profiled steel plate 3 and the curved beam 31, ensuring that there is no overhead or gap at the connection between the profiled steel plate 3 and the curved beam 31, and the entire anchor plate 4 is firmly welded to the profiled steel plate 3. Thus, the opening between the anchor plate 4 and the profiled steel plate 3 is completely welded, so that the side sealing plate 41, the top sealing plate 42 and the anchor plate 4 form a completely closed groove downward.

[0092] The upper side of the device refers to the higher side of the inclined corrugated steel plate 3, and the lower side refers to the lower side inclined downward; the inside and outside of the device refer to the interior of the building and the outside of the roof. The orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0093] The height limit rod 13 is welded on the fixing plate 15, and the fixing plate 15 is riveted or welded on the corrugated steel plate 3. When the height limit net 3 is laid, a water stop clamp ring 12 needs to be installed on the height limit rod 13 first, and the height position of the water stop clamp ring 12 on the height limit rod 13 is adjusted. This position is the height position of the coverage surface of the height limit net 3, that is, the curved surface shape of the top of the building formed by the final concrete. Therefore, the height position of the water stop clamp ring 12 needs to be measured and positioned to ensure that the position conforms to the designed roof arc surface.

[0094] Lay the height limiting net 2, cover the height limiting net 2 on the height limiting pole 13, so that the height limiting pole 13 penetrates the water stop clamp ring 12, the water stop plug 14 and the height limiting net 2, and the height limiting net 2 needs to fit above the water stop clamp ring 12 and the water stop plug 14 that have been installed stably; press the knob of the top locking plate 11 on the top of the height limiting net 2, so that the height limiting net 2 is clamped between the top locking plate 11 and the water stop clamp ring 12, and ensure that the upper end of the water stop plug 14 is tightly against the top of the top locking plate 11. Rubber gaskets can be added, or the height limiting pole 13 can be directly cut to make its length suitable. As long as the top of the top locking plate 11 is tightly against the water stop plug 14, the gap can be blocked.

[0095] The stopper net 21 needs to be installed vertically, and a stopper net 21 is pulled vertically between the two lower height limit rods 13. The stopper net 21 can be a mesh plate or a steel wire, but the stopper net 21 needs to have a higher bearing strength and be thinner. One side of the stopper net 21 is stretched and tied to the height limit rod 13 through a buckle or wire, and then the other side of the stopper net 21 is also stretched and tied to the adjacent height limit rod 13 to ensure that the stopper net 21 intercepts the direction of concrete flowing downward, thereby intercepting the concrete and allowing the concrete to solidify and form at a fixed position.

[0096] The device achieves the purpose of intercepting and limiting the top and lower end surface of the concrete. Similarly, if the left and right sides of the concrete casting block also need to be intercepted, it is only necessary to install the flow-stopping nets 21 on the two height-limiting rods 13 on the left and right sides.

[0097] The specific roof construction methods are as follows:

[0098] The following steps are involved:

[0099] Step S1, measuring the area of ​​the roof that needs to be poured in a single time on the top of the corrugated steel sheet 3, and measuring the curvature of the curved surface of the roof. If the area that needs to be poured in a single time reaches 100 square meters, an isolation zone 5 needs to be set. If any width or length of the range of concrete pouring in a single time reaches 10 meters, step 2 is performed;

[0100] If the single pouring area is less than 100 square meters, the curvature is less than 30°, and the concrete slump is low and does not flow, proceed to step 4;

[0101] Step S2, calculating the position of the isolation belt 5, the isolation belt 5 is a long strip protrusion crisscrossed, and multiple isolation belts 5 are staggered to form a square interval. The width s of the isolation belt 5 is 1.5 meters, and the interval width d between the mutually parallel isolation belts 5 is 10 meters. This data is used for lofting;

[0102] Step S3, build a template according to the layout size, pour concrete within the template range of the isolation zone 5, and tamp it until it solidifies and forms;

[0103] Step S4, install the thickness regulator 1 according to the pouring area, the thickness regulator 1 on the top of the corrugated steel plate 3 is distributed in a rectangular shape, and the spacing between adjacent thickness regulators 1 does not exceed 10 meters. If the roof curvature of the concrete pouring area is large, exceeding 40°, a thickness regulator 1 can be set at intervals of 5 meters. If the roof curvature is small and within 40°, a thickness regulator 1 is set at intervals of 10 meters of roof curvature;

[0104] Step S5, pouring concrete between the isolation strips 5 and vibrating to form a shallow pouring layer 51, the concrete thickness of the shallow pouring layer 51 is the height difference between the crest panel and the trough panel of the corrugated steel plate 3, and the shallow pouring layer 51 completely covers the corrugated steel plate 3 and is vibrated and smoothed;

[0105] Step S6, after at least 30 minutes of pause, a second pouring is performed, and a height limiting net 2 and a flow stopping net 21 are laid on the thickness regulator 1, the height limiting net 2 is installed on the top of the height limiting rod 13 of the thickness regulator 1, and the height limiting net 2 is spread along the roof and clamped between the water-stop clamp ring 12 and the top locking plate 11, and the spreading height of the height limiting net 2 is adjusted by the position of the water-stop clamp ring 12 and the top locking plate 11 until the design thickness of the concrete roof and the shape of the roof arc meet the design height;

[0106] Step S7, if there is no obstruction at the lower end of the concrete poured in the shallow pouring layer 51, the flow-stopping net 21 is pulled vertically on the lower side of the pouring area so that the flow-stopping net 21 blocks the concrete from flowing downward;

[0107] Step S8, then pouring concrete on the top of the entire shallow pouring layer 51 until it contacts the height limiting net 2, the poured concrete forms a shaping surface layer 52, and the shaping surface layer 52 contacts the bottom of the height limiting net 2;

[0108] Step S9, after the shaping surface layer 52 is poured, a technical break of 1 hour is performed, and the surface is polished with a polishing machine, and the concrete is vibrated and compacted to complete the pouring of the roof on the top of the building;

[0109] Step S10, disassemble the water stop clamp ring 12 and the top locking plate 11, and take down the height limit net 2, and fill the holes left by the concrete after the height limit rod 13 extending out of the top of the shaping surface layer 52, so as to fill and level all the holes in the roof.

[0110] The left and right direction referred to in this device refers to the transverse direction of the folds of the corrugated steel plate 3, and the high and low direction refers to the inclination direction of the corrugated steel plate 3. The orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0111] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A construction method for a hyperbolic steel-concrete roof, characterized in that: The following steps are involved: Step S1, measuring the area of ​​the roof that needs to be poured in a single time on the top of the corrugated steel plate (3) of the building structure, and measuring the curvature of the curved surface of the roof. If the area that needs to be poured in a single time reaches 100 square meters, proceed to step 2, setting an isolation belt (5) on the top of the corrugated steel plate (3); If the single pouring area is less than 100 square meters, the curvature is less than 30°, and the concrete slump is low and does not flow, proceed to step 4; Step S2, calculating the position of the isolation belt (5), the isolation belt (5) is a long strip protrusion crisscrossed, a plurality of the isolation belts (5) are staggered to form a square interval, the width s of the isolation belt (5) is 1.5 meters, and the interval width d between the mutually parallel isolation belts (5) is 10 meters, and the data is used for lofting; Step S3, building a formwork according to the layout size, pouring concrete within the formwork range of the isolation zone (5), and tamping it until it solidifies and takes shape; Step S4, installing a plurality of thickness adjusters (1) on the top of the corrugated steel sheet (3) of the building according to the casting area, wherein the plurality of thickness adjusters (1) are distributed in a rectangular shape, and the distance between adjacent thickness adjusters (1) does not exceed 10 meters; Step S5, pouring concrete between the isolation strips (5), and vibrating to form a shallow pouring layer (51), the concrete thickness of the shallow pouring layer (51) being the height difference between the crest panel and the trough panel of the corrugated steel plate (3), and the shallow pouring layer (51) completely covering the corrugated steel plate (3) and vibrating and smoothing; Step S6, performing a second pouring after at least 30 minutes of pause, laying a height limiting net (2) and a flow stopping net (21) on the thickness regulator (1), wherein the height limiting net (2) is installed on the top of the thickness regulator (1), and adjusting the spreading height of the height limiting net (2) on the thickness regulator (1) until the designed thickness of the concrete roof and the shape of the roof arc meet the designed height; Step S7, if the lower end of the concrete poured in the shallow pouring layer (51) is not blocked, the flow-stopping net (21) is pulled vertically on the lower side of the pouring area so that the flow-stopping net (21) blocks the concrete from flowing downward; Step S8, then pouring concrete on the top of the entire shallow pouring layer (51) until it contacts the height limiting net (2), and the poured concrete forms a shaping surface layer (52), and the shaping surface layer (52) contacts the bottom of the height limiting net (2); Step S9, after the shaping surface layer (52) is poured, there is a technical break of 1 hour, and the surface is polished with a grinder, and the concrete is vibrated and compacted to complete the pouring of the roof on the top of the building.

2. The construction method of a hyperbolic steel-concrete roof according to claim 1, characterized in that: The method further comprises step S10 of dismantling the height limiting net (2), cutting off the height limiting rod (13) extending out from the top of the shaping surface layer (52), filling the holes left on the shaping surface layer (52) after dismantling the height limiting net (2), and filling and leveling all the holes on the shaping surface layer (52).

3. The construction method of a hyperbolic steel-concrete roof according to claim 1, characterized in that: If the width or length of the area to be poured for a single concrete pouring reaches 10 meters, step 2 is performed to set up an isolation zone (5).

4. The construction method of a hyperbolic steel-concrete roof according to claim 1, characterized in that: The height adjustment of the height limiting net (2) is within 2 cm of the designed height of the roof; The shaping surface layer (52) does not cover the height limiting net (2) The height limiting net (2) and the flow stopping net (21) are both steel wire nets; The number of meshes of the height limiting net (2) is not less than 1000 per square meter; The diameters of the water-stop clamp ring (12) and the top locking plate (11) are larger than the diameter of any mesh of the height-limiting net (2); The number of meshes of the flow-stopping net (21) is not less than 1200 per square meter; The flow-stopping net (21) is locked on the height-limiting rods (13) via buckles; a flow-stopping net (21) is detachably installed vertically between any two of the height-limiting rods (13).

5. The construction method of a hyperbolic steel-concrete roof according to claim 1, characterized in that: The thickness adjuster (1) comprises a top locking plate (11), a water-stop clamp ring (12), a height-limiting rod (13), a water-stop plug (14) and a fixing plate (15); The top locking plate (11) and the fixing plate (15) are both flat plates, and the fixing plate (15) is fixedly attached to the corrugated steel plate (3); The height limiting rod (13) is a threaded rod, and the height limiting rod (13) is vertically fixed on the top of the fixing plate (15); The top locking plate (11) and the water-stop clamp ring (12) are both flat plates, and the top locking plate (11) and the water-stop clamp ring (12) are both installed on the height-limiting rod (13) via threads so as to be able to be raised and lowered; The water stop plug (14) is a rubber plug, and the water stop plug (14) is installed on the height limiting rod (13) through threads; The top locking plate (11), the water stop plug (14), the water stop clamp ring (12) and the fixing plate (15) are arranged on the height limiting rod (13) in sequence from top to bottom; The height limiting net (2) is sleeved on the height limiting rod (13), and the height limiting net (2) is stably clamped between the water stop clamp ring (12) and the top locking plate (11); The top locking plate (11), the water stop clamp ring (12) and the fixing plate (15) are all circular flat plates; The axes of the top locking plate (11), the water stop clamp ring (12), the height limiting rod (13) and the fixing plate (15) coincide with each other; The fixing plate (15) is locked on the corrugated steel plate (3) by means of rivets; The top of the water-stop plug (14) is closed, and the top of the water-stop plug (14) is also wrapped with a sponge protective pad. The water-stop plug (14) is a truncated cone-shaped rubber plug with a larger top and a smaller bottom. A threaded hole is opened inside the water-stop plug (14). The top of the water-stop plug (14) is a truncated cone plane, and the diameter of the circular plane at the top of the water-stop plug (14) is not less than 3 cm. The water stop plug (14) is clamped at the bottom of the height limiting net (2).

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