Parapet structure with prefabricated cornice and coping

Abstract

The application discloses a parapet structure of prefabricated cornice coping, which comprises a parapet, a coping connected to the upper portion of the parapet, wherein the parapet and the coping are connected, the coping adopts a prefabricated coping structure, the parapet adopts an in-situ pouring forming structure provided with embedded steel bars, the prefabricated coping is provided with a steel bar mounting hole, the upper portion of the embedded steel bar is inserted into the steel bar mounting hole, the prefabricated coping is provided with a water-overflowing cornice, the lower portion of the coping is provided with a sleeve, the prefabricated coping is provided with a coping transverse steel bar and a coping longitudinal steel bar, the coping longitudinal steel bar is connected to the sleeve, the coping and the in-situ poured wall body of the parapet are connected through sleeve grouting, the lower portion of the water-overflowing cornice is connected to an outer wall plate, and the outer wall plate is arranged on the extra side of the parapet. The prefabricated coping structure is adopted in the parapet, the in-situ pouring forming structure provided with embedded steel bars is adopted in the parapet, the coping and the in-situ poured wall body of the parapet are connected through sleeve grouting, the stability of the structure is good, the finished product quality is convenient to control, and the construction efficiency, construction precision and appearance quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated building, in particular to a prefabricated eaves coping parapet wall structure. BACKGROUND

[0002] In prefabricated building, cast-in-place parapet wall coping is affected by the construction process such as hoisting and formwork, and has large construction error, which seriously affects the building appearance. The prefabricated concrete type can form a standardized component, which is convenient for installation and control of finished product quality. Compared with site concrete pouring, it reduces the amount of wet work by 100% and shortens the construction time by 80%. At present, the prefabrication rate of parapet wall coping in prefabricated building of power transformation engineering is low. The reason is that the coping has different degrees of cantilever according to the wall plate method and building position. If the cantilever is too large, the overturning moment of the coping structure will be increased. If the overturning resistance moment of the coping connection is insufficient, it will directly affect the applicability of the prefabricated coping. In addition, the connection part of the parapet wall and the prefabricated outer wall plate cannot form an effective waterproof structure, and the leakage problem is common, which will seriously affect the normal operation of the room equipment, causing great economic loss and social influence. SUMMARY

[0003] The present application is to overcome the shortcomings of the prior art, and provides a prefabricated eaves coping parapet wall structure. The prefabricated eaves coping parapet wall structure of the present application adopts a prefabricated coping structure, and a cast-in-place forming structure with embedded steel bars is used for the parapet wall. The prefabricated coping is provided with a steel bar mounting hole, and the upper part of the embedded steel bar is inserted into the steel bar mounting hole. A sleeve is arranged near the lower part of the coping, and the longitudinal steel bars of the coping are connected with the sleeve. The coping and the cast-in-place wall body of the parapet wall are connected through sleeve grouting. The structure has good stability, improves the degree of prefabrication, facilitates control of the finished product quality, and improves the construction efficiency, construction precision and appearance quality. It is safe, stable and has high reliability.

[0004] The technical solution adopted by the present application to solve the technical problem is:

[0005] A prefabricated eaves coping parapet wall structure, comprising a parapet wall, wherein the upper part of the parapet wall is connected with a coping, and the parapet wall is connected with the coping. The coping adopts a prefabricated coping structure, and the parapet wall adopts a cast-in-place forming structure with embedded steel bars. The prefabricated coping is provided with a steel bar mounting hole, and the upper part of the embedded steel bar is inserted into the steel bar mounting hole. The prefabricated coping is provided with a water-splashing eaves. A sleeve is arranged near the lower part of the coping. The prefabricated coping is provided with horizontal steel bars and longitudinal steel bars of the coping. The longitudinal steel bars of the coping are connected with the sleeve. The coping and the cast-in-place wall body of the parapet wall are connected through sleeve grouting. The lower part of the water-splashing eaves is connected with an outer wall plate, and the outer wall plate is arranged on the extra side of the parapet wall.

[0006] The lower part of the coping is provided with a grouting hole and an exhaust hole, and the grouting hole and the exhaust hole are respectively communicated with the steel bar mounting hole. The longitudinal steel bars of the coping are fixedly connected with the sleeve.

[0007] The eaves include an inner eaves, an outer eaves, and the lower part of the eaves is connected with the outer wall plate.

[0008] The lower edge of the inner eaves is provided with a water dripping groove one, the lower edge of the outer eaves is provided with a water dripping groove two, and the lower part of the eaves is overlapped with the outer wall plate and reserved with a slot.

[0009] The slot is sequentially provided with a foamed polyethylene rod and a polyurethane waterproof glue.

[0010] The top of the coping is provided with a downward drainage slope from the outer side to the inner side.

[0011] The prefabricated eaves coping is integrally formed by laying and connecting a plurality of prefabricated coping single blocks, the gap between the two adjacent prefabricated coping single blocks is filled with waterproof mortar, and the surface is sealed with silicone weatherproof glue.

[0012] The silicone weatherproof glue is arranged on the outer surface of the installation gap between the coping and the parapet wall.

[0013] The waterproof mortar layer is arranged between the prefabricated coping and the parapet wall.

[0014] The sleeve is a rolled straight thread sleeve, and the outer wall plate is a fabricated outer wall plate.

[0015] The beneficial effects of the present application are:

[0016] 1. The prefabricated eaves coping parapet wall structure of the present application adopts a prefabricated coping structure, and the parapet wall adopts an in-situ cast forming structure with embedded steel bars, the prefabricated coping is provided with a steel bar mounting hole, the upper part of the embedded steel bar is inserted into the steel bar mounting hole, and the prefabricated coping is provided with an eaves, the sleeve is arranged close to the lower part of the coping, the longitudinal steel bar of the coping is connected with the sleeve, and the coping and the in-situ cast wall body of the parapet wall are connected through the sleeve grouting, so that the stability of the structure is good, the assembly degree is improved, the finished product quality is easy to control, the construction efficiency, construction precision and appearance quality are improved, and the safety, stability and reliability are high.

[0017] 2. The parapet wall coping of the present application adopts a prefabricated structure, adopts structural measures such as overhanging eaves, glueing slot and water dripping groove, effectively guarantees the waterproof and drainage effect of the structure, and improves the structural applicability.

[0018] 3. The prefabricated coping is hollow processed, the quality is reduced, the overturning moment of the coping is reduced, and the stability of the coping is improved. The overhanging section of the coping is hollow processed, the overturning moment is effectively reduced, the prefabricated coping and the in-situ cast wall body are connected through sleeve grouting, and the stability of the structure is ensured.

[0019] 4. The coping is connected with the parapet by sleeve grouting structure, which improves the stability of the structure, facilitates the construction and installation, and shortens the construction period.

[0020] 5. The top of the coping is provided with a downward drainage slope from the outer side to the inner side, which can smoothly drain water downward.

[0021] 6. The prefabricated coping is connected as a whole by laying a plurality of prefabricated coping single blocks, the gap between the two adjacent prefabricated coping single blocks is filled with waterproof mortar, and the surface is sealed with silicone weatherproof glue, which can ensure flatness and reliable sealing.

[0022] 7. The coping and the parapet are provided with silicone weatherproof glue on the outer surface of the installation gap, a waterproof mortar layer is arranged between the prefabricated coping and the parapet, and a foamed polyethylene rod and polyurethane waterproof glue are sequentially arranged at the notch, which is reliable in sealing, good in sealing effect, can effectively prevent water leakage, and avoids the equipment operation and maintenance safety caused by building water leakage. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 The structure of the embodiment in the present application is shown in the figure;

[0024] Fig. 2 The sleeve grouting connection structure is shown in the figure.

[0025] In the figure: 1-parapet; 2-pre-buried steel bar; 3-prefabricated coping; 4-inner eaves; 5-drip groove 1; 6-outer eaves; 7-reserved hole; 8-drip groove 2; 9-coping horizontal steel bar; 10-coping longitudinal steel bar; 11-waterproof mortar; 12-sleeve grouting connection structure; 13-sleeve; 14-grouting hole; 15-vent hole; 16-steel bar installation hole; 17-grouting material; 18-silicone weatherproof glue; 19-outer wall panel; 20-foamed polyethylene rod; 21-polyurethane waterproof glue. DETAILED DESCRIPTION

[0026] In order to enable the personnel in the technical field to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0027] As Figs. 1-2As shown, a prefabricated cornice coping parapet wall structure, comprising a parapet wall 1, the upper part of the parapet wall 1 is connected with a coping 3, the parapet wall 1 is connected with the coping 3, characterized in that the coping 3 adopts a prefabricated coping structure, that is, it is prefabricated in a factory, the parapet wall 1 adopts a cast-in-place parapet wall, the cast-in-place parapet wall 1 adopts an on-site casting forming structure provided with a pre-embedded steel bar 2, a prefabricated coping reserved steel bar mounting hole 16, the upper part of the pre-embedded steel bar is inserted into the steel bar mounting hole 16 of the prefabricated coping, the prefabricated coping is provided with a water spouting cornice, the coping is provided with a sleeve 13 near the lower part, the prefabricated coping is provided with a coping transverse steel bar and a coping longitudinal steel bar, the coping longitudinal steel bar is fixedly connected with the sleeve, and the coping is connected with the cast-in-place wall body of the parapet wall through sleeve grouting. Thus, the assembly construction of the coping is realized. The lower part of the water spouting cornice is connected with an external wall panel 19, the external wall panel 19 is on the extra side of the parapet wall, the prefabricated coping is provided with a coping transverse steel bar 9 and a coping longitudinal steel bar 10. The external wall panel 19 adopts an assembled external wall panel.

[0028] The sleeve 13 adopts a rolled straight thread sleeve.

[0029] The lower part of the coping is provided with a grouting hole 14 and an exhaust hole 15, the grouting hole 14 and the exhaust hole 15 are respectively communicated with the steel bar mounting hole 16, and the coping longitudinal steel bar 10 is fixedly connected with the sleeve 13. In the figure, the sleeve 13, the grouting hole 14, the exhaust hole 15, the steel bar mounting hole 16, the grouting material 17 and the pre-embedded steel bar 2 and the coping longitudinal steel bar 10 together form a sleeve grouting connection structure 12.

[0030] The water spouting cornice comprises an inner side cornice 4 and an outer side cornice 6, and the lower part of the water spouting cornice is connected with the external wall panel. For example, the width of the inner side cornice of the prefabricated coping is 60 mm, the width of the outer side cornice is the thickness of the wall panel + 100 mm, and the thickness of the coping overhang is not less than 100 mm. The outer side cornice section is provided with a plurality of 65 mm*50 mm reserved holes 7 for hollow treatment, so as to reduce the quality and the overturning moment of the coping, thereby improving the stability of the coping.

[0031] The top of the coping is provided with a downward drainage slope from the outer side to the inner side. For example, the drainage slope is 5% or the like.

[0032] The lower edge of the inner side cornice 4 is provided with a water drip groove 1 5, and the lower edge of the outer side cornice 6 is provided with a water drip groove 2 8; the lower part of the water spouting cornice is overlapped with the assembled external wall panel and is provided with a reserved slot. The water drip groove and the glued slot form a structural waterproofing, so as to ensure the waterproofing and drainage effect of the parapet wall and the external wall panel.

[0033] The slot is sequentially provided with a foamed polyethylene rod 20 and a polyurethane waterproofing glue 21.

[0034] The capping transverse steel bars 9, the capping longitudinal steel bars 10 and the embedded steel bars 2 are all selected from HRB400 steel bars, and the diameters, the number of steel bars and the spacing between the steel bars of the capping transverse steel bars 9, the capping longitudinal steel bars 10 and the embedded steel bars 2 are selected according to the structure needs.

[0035] The prefabricated capping is integrally formed by laying and connecting a plurality of prefabricated capping single blocks, and the gap between the two adjacent prefabricated capping single blocks is filled with waterproof mortar or the like, and the surface is sealed with silicone weatherproof glue or the like, so as to ensure flatness and reliable sealing.

[0036] The capping and the parapet wall are provided with silicone weatherproof glue 18 on the outer surface of the installation gap.

[0037] The prefabricated capping and the parapet wall 1 are provided with a waterproof mortar 11 layer.

[0038] The installation process of the prefabricated capping of the present application is as follows:

[0039] Before installation, the waterproof mortar 11 is brushed on the upper part of the cast-in-place parapet wall, the prefabricated capping is installed at the position corresponding to the embedded steel bars 2, the embedded steel bars 2 are inserted into the steel bar installation hole 16, and the capping longitudinal steel bars 10 and the embedded steel bars 2 are connected and fixed through the sleeve 13. After the embedded steel bars 2 are fixed, grouting is performed through the grouting hole 14, and the embedded steel bars 2 are tightly engaged with the inner wall of the sleeve through the hardening of the grouting material 17, so as to effectively transmit the force of the stress longitudinal steel bars. The grouting material 17 is a mixed material composed of cement-based material, fine aggregate and concrete admixture, etc. The sleeve 13 has sealing, drying and smoothness, and is treated by light transmission inspection, high-pressure air cleaning and other technologies before construction. After the installation of the prefabricated capping is completed, the silicone weatherproof glue 18 is applied on the outer surface of the installation gap. After the installation of the parapet wall capping is completed, the assembled external wall panel is installed, and the foamed polyethylene rod 20 and the polyurethane waterproof glue 21 are sequentially arranged at the slot.

[0040] In the description of the present application, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and do not require the present application to be constructed or operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In the present application, "connection" should be understood in a broad sense, for example, it can be a connection, or a detachable connection; it can be a direct connection, or an indirect connection through an intermediate part, and the specific meaning of the above terms can be understood according to the specific circumstances for those skilled in the art.

[0041] The above describes the preferred embodiments of the present application, and the description of the specific examples is only for better understanding the idea of the present application. For those skilled in the art, several improvements or equivalent replacements can be made according to the principles of the present application, and these improvements or equivalent replacements are also considered to fall within the protection scope of the present application.

Claims

1. A precast cornice coping parapet structure comprising a parapet, a coping connected to an upper portion of the parapet, and the parapet and the coping connected, characterized in that, The coping adopts a prefabricated coping structure, the parapet wall adopts an on-site pouring forming structure provided with embedded steel bars, the prefabricated coping is provided with a steel bar mounting hole, the upper part of the embedded steel bar is inserted into the steel bar mounting hole, the prefabricated coping is provided with a water spouting cornice, the coping is provided with a sleeve close to the lower part, the prefabricated coping is provided with a coping transverse steel bar and a coping longitudinal steel bar, the coping longitudinal steel bar is connected with the sleeve, the coping is connected with the cast-in-place wall body of the parapet wall through the sleeve grouting, the lower part of the water spouting cornice is connected with the outer wall plate, and the outer wall plate is arranged on the extra side of the parapet wall; The lower part of the coping is provided with a grouting hole and a vent hole, and the grouting hole and the vent hole are respectively communicated with the steel bar mounting hole; and the upper steel bar is fixedly connected with the sleeve. The water spouting cornice comprises an inner side cornice and an outer side cornice, and the lower part of the water spouting cornice is connected with the outer wall plate. The lower edge of the inner side cornice is provided with a water drip groove one, the lower edge of the outer side cornice is provided with a water drip groove two, the lower part of the water spouting cornice is overlapped with the outer wall plate and is provided with a reserved slot, the outer side cornice section is provided with a plurality of reserved holes for hollow treatment, so as to reduce the quality, reduce the overturning moment of the coping and improve the stability of the coping; The prefabricated water spouting coping is integrally formed by connecting a plurality of prefabricated coping single blocks, the gap between the two adjacent prefabricated coping single blocks is filled with waterproof mortar, and the surface is filled with silicone weatherproof glue.

2. The precast eave-cornice coping parapet structure according to claim 1, wherein, The slot is sequentially provided with foamed polyethylene and polyurethane waterproof glue.

3. The precast eave-cornice coping parapet structure in accordance with claim 1, wherein, The top of the coping is provided with a downward drainage slope from the outer side to the inner side.

4. The precast cornice coping parapet wall structure in accordance with claim 1 further characterized by, The coping and the parapet wall are provided with silicone weatherproof glue on the outer surface of the installation gap.

5. The precast cornice coping parapet wall structure in accordance with claim 1 further characterized by, A waterproof mortar layer is arranged between the prefabricated coping and the parapet wall.

6. The precast cornice coping parapet wall structure in accordance with claim 1 further characterized by, The sleeve adopts a rolled straight thread sleeve, and the outer wall plate adopts a fabricated outer wall plate.

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