CN-122013941-A - Roof integrated prefabricated plate structure and construction method

CN122013941ACN 122013941 ACN122013941 ACN 122013941ACN-122013941-A

Abstract

The invention relates to a roof integrated precast slab structure and a construction method, comprising precast slabs which have various dimensions and are continuously paved and fixed on a roof leveling layer to form a roof paving layer; the prefabricated plate comprises a waterproof layer, a heat-insulating layer, an isolation layer and a facing layer which are sequentially laid in an overlapping mode from bottom to top, wherein the heat-insulating layer is fixedly adhered to the waterproof layer, the thickness of the heat-insulating layer gradually decreases from right to left, so that the prefabricated plate forms a gradient far away from a roof, the edges of two adjacent sides of the waterproof layer extend out of the heat-insulating layer range to form waterproof overlap edges, the prefabricated plate is fixedly pressed on the waterproof overlap edges of the adjacent prefabricated plates, and the isolation layer is uniformly laid and fixedly arranged on the heat-insulating layer. The thickness and the gradient of each layer in the precast slab can be controlled in prefabrication, so that a continuous slope is formed by paving the layers on the roof, the complicated procedures of gradual construction and on-site slope finding of each layer in the traditional construction are reduced, the speed and the precision of the integral construction are improved, and the stability and the waterproofness of a roof system are ensured.

Inventors

ZHOU YUBO
ZHANG LEI
JIANG YAOWU
WANG YUBING
LIANG JIAN
FANG XUECHAO

Assignees

中国建筑第七工程局有限公司
郑州市建设工程质量安全技术监督中心

Dates

Publication Date: 20260512
Application Date: 20260206

Claims (8)

1. A roof integrated precast slab structure is characterized by comprising precast slabs which have various dimensions and are continuously paved and fixed on a roof leveling layer (12) to form a roof paving layer; The prefabricated plate comprises a waterproof layer (1), a heat preservation layer (2), an isolation layer (3) and a facing layer (4) which are sequentially overlapped and laid from bottom to top; The heat preservation layer (2) is fixedly adhered to the waterproof layer (1), and the thickness of the heat preservation layer (2) is gradually reduced from right to left, so that the precast slab forms a gradient far away from a roof; The thickness of the heat preservation layers (2) on the opposite surfaces of the left and right adjacent precast slabs is adapted, so that the roof paving layers form continuous and uniform slopes which are downward far away from the roof; The edges of two adjacent sides of the waterproof layer (1) extend out of the range of the heat insulation layer (2) to form waterproof joint edges (101), and the prefabricated plates are pressed and fixed on the waterproof joint edges (101) of the adjacent prefabricated plates; The isolating layer (3) is uniformly paved and fixed on the heat insulating layer (2), the facing layer (4) is paved and fixed on the isolating layer (3), a splice joint (5) is kept between two adjacent precast slabs, A joint filling structure is arranged in the joint (5), and comprises a water stop bar (6), a waterproof ointment (7) and a joint pointing agent (8); the waterproof sealing device is characterized in that the waterproof strip (6) is fixedly attached to the edge joint (5) and extends along the length direction of the edge joint (5), the waterproof ointment (7) is filled in the edge joint (5) and located above the waterproof strip (6), and the pointing agent (8) is filled above the waterproof ointment (7) to fill the edge joint (5).
2. The roof integrated prefabricated panel structure according to claim 1, wherein the heat insulation layer (2) comprises an upper heat insulation layer (201) and a lower heat insulation layer (202), the thickness of the lower heat insulation layer (202) gradually decreases towards the direction far away from the roof, and the upper heat insulation layer (201) is uniformly and fixedly paved on the lower heat insulation layer (202).
3. The roof integrated prefabricated panel structure according to claim 2 is characterized in that a water stop layer (203) is fixedly paved between the upper heat insulation layer (201) and the lower heat insulation layer (202), and the water stop strips (6) are fixedly adhered to the side walls of the heat insulation layer (2) and cover the side walls of the water stop layer (203).
4. A roof integrated precast slab structure according to any one of claims 1 to 3, wherein the left and right sides of the precast slab are provided with inclined surfaces inclined towards the lower left, and the shapes and sizes of the adjacent inclined surfaces are adapted.
5. A roof integrated precast slab structure according to any one of claims 1 to 3, wherein the right and left side surfaces of the precast slab are respectively fixed with a front buckle (9) with an upper opening and a back buckle (10) with a lower opening, and when two adjacent precast slabs form a joint (5), the front buckle (9) and the back buckle (10) are in fit connection.
6. A roof integrated precast slab structure according to any one of claims 1 to 3, wherein the facing layer (4) is uniformly laid on the isolation layer (3), a plurality of small tiles (401) are uniformly laid on the facing layer (4) at intervals, and a pointing joint which is the same as the width of the joint (5) is kept between the small tiles (401) on the same precast slab, wherein the edges of the small tiles (401) distributed on the periphery of the precast slab are level with the edges of the facing layer (4).
7. A roof integrated prefabricated panel structure according to any one of claims 1-3, wherein the lower surface of the waterproof layer (1) and the upper surface of the waterproof joint edge (101) are provided with bonding surfaces, and a separation film is adhered on the bonding surfaces.
8. A construction method of a roof integrated prefabricated panel structure, characterized in that the roof integrated prefabricated panel structure according to any one of claims 1-3 is used, comprising the following steps: s100, typesetting design; according to the standard size of the prefabricated plate, primarily typesetting the roof from inside to outside at the joint of the separation joints; designing prefabricated plates with non-standard sizes for uncovered parts; manufacturing prefabricated plates, and numbering different prefabricated plates; s200, positioning paying-off and positioning pre-paving; Positioning and paying off are carried out on the positions of the splice joints (5) and the protruding roof buildings according to the layout design of the roof; after positioning and paying off, pre-laying precast slabs at corners in a surrounding area of a line, and pre-laying precast slabs at the rightmost side and the rearmost side; s300, continuously paving; Sequentially and continuously paving precast slabs from back to front and from right to left, wherein the precast slabs paved later are pressed on waterproof joint edges (101) of the paved precast slabs; when the prefabricated plate is paved and fixed, waterproof adhesive paint is firstly painted on the bottom of the waterproof layer (1) and the waterproof joint edges (101), so that the prefabricated plate and the adjacent waterproof joint edges (101) are adhered to survive after the prefabricated plate is paved and fixed; s400, processing the splice joint; before the prefabricated plates are laid and pasted, according to typesetting design, a water stop strip (6) is inlaid and pasted on the side edge of the heat preservation layer (2) in advance, and the bottom oil is brushed, and the thickness of the water stop strip (6) is consistent with that of the splice joint (5); After the precast slabs are paved, waterproof ointment (7) is embedded in the abutted seams (5), then the precast slabs are filled with a pointing agent (8), and finally the precast slabs are pointed along longitudinal and transverse seams by using a sewing rod.

Description

Roof integrated prefabricated plate structure and construction method Technical Field The invention relates to the technical field of roof paving, in particular to a roof integrated prefabricated plate structure and a construction method. Background Along with the development of urban groups, the buildings are increasingly dense, and in order to solve the requirements of heat preservation and water resistance of the roof, the traditional building roof is generally provided with a plurality of surface layers, such as a slope layer, a leveling layer, a heat preservation layer, a waterproof layer, a protection layer, a surface layer and the like, and the building roof needs to be constructed layer by layer in sequence, so that the problems of complicated construction, high labor consumption, long construction period and the like exist. In addition, as the roof needs to find a slope, the slope finding layers often need to be distributed on the lower layer, and when the slope finding layers are constructed layer by layer, the slope finding layers need to be found for many times, and most of the slope finding layers are found on site, so that the construction is complicated, the experience difference of constructors, environmental factors and the like can cause the unevenness and gradient change of each layer of thickness, so that the gradient and the thickness are difficult to keep uniform, the local adverse slope of the roof is easy to be caused, the situation of insufficient water resistance and upturning is easy to be caused, the drainage effect of the roof is influenced, the problems of water accumulation, leakage and the like are caused, and the water resistance and the heat insulation performance of a roof system are seriously influenced. Based on the above, it is necessary to study a roofing integrated prefabricated panel structure and a construction method. Disclosure of Invention In view of the above, the invention aims to provide a roof integrated prefabricated plate structure and a construction method, which can effectively solve the problems of complicated construction, difficulty in ensuring the thickness and uniform gradient of each layer in the existing roof layer-by-layer construction. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a roofing integrated precast slab structure comprises precast slabs which have various dimensions and are continuously paved and fixed on a roofing leveling layer so as to form a roofing paving layer; The prefabricated plate comprises a waterproof layer, a heat preservation layer, an isolation layer and a facing layer which are sequentially laid in an overlapping manner from bottom to top; the heat preservation layer is adhered and fixed on the waterproof layer, and the thickness of the heat preservation layer gradually decreases from right to left, so that the precast slab forms a gradient far away from the roof; the thickness of the heat preservation layers of the opposite surfaces of the left and right adjacent precast slabs is adapted, so that the roof paving layers form continuous and uniform gradients far away from the roof; The edges of two adjacent sides of the waterproof layer extend out of the range of the heat insulation layer to form waterproof overlap edges, and the prefabricated plates are pressed and fixed on the waterproof overlap edges of the adjacent prefabricated plates; the isolating layer is uniformly paved and fixed on the heat insulation layer, and the facing layer is paved and fixed on the isolating layer. A joint is kept between the two adjacent precast slabs, and a joint filling structure is arranged in the joint filling structure and comprises a water stop bar, waterproof ointment and a joint pointing agent; The waterproof sealing device is characterized in that the waterproof strip is fixedly attached to the seam and extends along the length direction of the seam, the waterproof ointment is filled in the seam and is located above the waterproof strip, and the pointing agent is filled above the waterproof ointment to fill the seam. Further, the heat preservation layer comprises an upper heat preservation layer and a lower heat preservation layer, the thickness of the lower heat preservation layer gradually decreases towards the direction far away from the roof, and the upper heat preservation layer is uniformly and fixedly paved on the lower heat preservation layer. Furthermore, a water stop layer is fixedly paved between the upper heat insulation layer and the lower heat insulation layer, and the water stop strips are fixedly stuck to the side wall of the heat insulation layer and cover the side wall of the water stop layer. Further, the left and right sides face of prefabricated plate all sets up to the inclined plane that inclines downwards left, and the shape and the size adaptation of the adjacent inclined plane of left and right sides. Further, the left and right sides face of prefabr