Formwork-free construction system for cast-in-place layer at joint of building outer wall and laminated slab
By using the outer side walls of UHPC prefabricated shear walls in prefabricated and assembled buildings as the end formwork for the cast-in-place layer, the problem of complex formwork support in the construction of prefabricated insulated exterior walls is solved, efficient and environmentally friendly cast-in-place layer construction is achieved, and the thermal insulation and waterproofing properties are improved.
Patent Information
- Application Number
- CN202422642573.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In prefabricated and assembled buildings, the installation of prefabricated insulated exterior walls and the construction of the top cast-in-place layer require additional formwork support, which leads to complex construction, high costs, long cycles, and the generation of construction waste, which is not environmentally friendly.
The height difference section of the UHPC prefabricated shear wall, where the outer wall is higher than the inner wall, is used as the end formwork of the cast-in-place layer, eliminating the traditional formwork support and dismantling processes, and ensuring construction quality through the high durability and mechanical properties of UHPC materials.
It reduces the construction workload, shortens the construction period, avoids the generation of construction waste, improves the construction efficiency and thermal insulation performance, and ensures the quality of the cast-in-place layer.
Smart Images
Figure CN223458968U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building engineering, especially relates to a cast-in-place layer formwork-free construction system at the node of building outer wall and laminated slab. BACKGROUND
[0002] In the current prefabricated building practice, the installation of prefabricated thermal insulation outer wall and the construction of the top cast-in-place layer often face challenges. In the traditional method, the upper and lower end faces of the inner and outer walls of the prefabricated thermal insulation outer wall are flat except for the rabbet on the outer wall. The cast-in-place layer at the node of the inner wall of the prefabricated thermal insulation outer wall and the laminated slab needs to be additionally provided with an end formwork at the outer wall, which not only increases the construction complexity and cost, but also prolongs the construction period. In addition, construction waste is easily generated during the erection and removal of the formwork, which is not environmentally friendly. SUMMARY
[0003] The utility model aims to provide a cast-in-place layer formwork-free construction system at the node of building outer wall and laminated slab to solve the problem of additional provision of outer wall formwork for the construction of cast-in-place layer at the node of prefabricated outer wall and laminated slab, which leads to complex construction, high cost, long construction period, generation of construction waste after form removal, and environmental pollution.
[0004] To solve the above technical problems, the utility model provides a technical scheme: a cast-in-place layer formwork-free construction system at the node of building outer wall and laminated slab, wherein the building outer wall is a lower prefabricated sandwich thermal insulation outer wall component composed of a thermal insulation layer and UHPC prefabricated shear wall outer wall and prefabricated shear wall inner wall on both sides of the thermal insulation layer, the upper end of the UHPC prefabricated shear wall outer wall is higher than the upper end of the prefabricated shear wall inner wall, the height difference between the UHPC prefabricated shear wall outer wall and the prefabricated shear wall inner wall serves as an end formwork for the cast-in-place layer at the node of the building outer wall and the laminated slab, the upper and lower sections of the UHPC prefabricated shear wall outer wall have rabbets, the laminated slab is partially installed at the upper end of the shear wall inner wall, and the cast-in-place layer is located on the shear wall inner wall between the UHPC prefabricated shear wall outer wall and the laminated slab and on the laminated slab.
[0005] Further, the utility model provides a cast-in-place layer formwork-free construction system at the node of building outer wall and laminated slab, wherein the building outer wall further comprises an upper prefabricated sandwich thermal insulation outer wall component assembled and installed above the UHPC prefabricated shear wall outer wall of the lower prefabricated sandwich thermal insulation outer wall component, a post-poured section is constructed at the inner side joint of the upper and lower prefabricated sandwich thermal insulation outer wall components, and a polyethylene rod and sealant are constructed at the outer side rabbet joint of the upper and lower prefabricated sandwich thermal insulation outer wall components.
[0006] Further, the utility model provides building outer wall and composite board node place cast in place layer exempts from to support the mould construction system, building outer wall still includes the upper prefabricated cast in place mixed structure of construction in the upper side wall of UHPC prefabricated shear wall of cast in place layer and lower prefabricated cast in place mixed structure, and the outer side rebate joint place of upper and lower prefabricated cast in place mixed structure constructs polyethylene stick and sealant.
[0007] Further, the utility model provides building outer wall and composite board node place cast in place layer exempts from to support the mould construction system, building outer wall still includes the upper prefabricated cast in place mixed structure of construction in the upper side wall of UHPC prefabricated shear wall of cast in place layer and lower prefabricated cast in place mixed structure, and the outer side rebate joint place of upper and lower prefabricated cast in place mixed structure constructs polyethylene stick and sealant.
[0008] Further, the utility model provides building outer wall and composite board node place cast in place layer exempts from to support the mould construction system, the prefabricated shear wall upper side wall of construction has cast in place beam, and the composite board part is installed on cast in place beam, and the height difference section of UHPC prefabricated shear wall upper side wall is higher than cast in place beam and is used as the end template of building outer wall and composite board node place cast in place layer.
[0009] Further, the utility model provides building outer wall and composite board node place cast in place layer exempts from to support the mould construction system, building outer wall still includes the upper prefabricated cast in place mixed structure of construction in the upper side wall of UHPC prefabricated shear wall of cast in place layer and lower prefabricated cast in place mixed structure, and the outer side rebate joint place of upper and lower prefabricated cast in place mixed structure constructs polyethylene stick and sealant.
[0010] Compared with the prior art, the utility model has the advantages of the following:
[0011] The building outer wall and composite board node place cast in place layer exempts from to support the mould construction system, the height difference section of UHPC prefabricated shear wall upper side wall is higher than shear wall inner side wall or cast in place beam and is used as the end template of building outer wall and composite board node place cast in place layer, thereby the process of additional end template setting at building outer wall before traditional cast in place layer construction and the template removal process after cast in place layer construction are omitted, the workload is reduced, the construction period is shortened, and the construction efficiency of cast in place layer is improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the elevation structure schematic drawing of building outer wall and composite board node place cast in place layer exempts from to support the mould construction system of example one.
[0013] Figure 2 is a vertical structure schematic diagram of the cast-in-place layer free-forming construction system at the node of the building outer wall and the composite slab of embodiment two;
[0014] Figure 3 is a vertical structure schematic diagram of the cast-in-place layer free-forming construction system at the node of the building outer wall and the composite slab of embodiment three;
[0015] The drawings show:
[0016] 100, cast-in-place layer free-forming construction system at the node of the building outer wall and the composite slab;
[0017] 110, building outer wall, 111, UHPC prefabricated shear wall outer wall, 112, thermal insulation layer, 113, prefabricated shear wall inner wall, 113a, cast-in-place shear wall inner wall, 114, high-difference section, 115, tongue and groove;
[0018] 120, composite slab;
[0019] 130, cast-in-place layer;
[0020] 140, post-pouring section;
[0021] 150, polyethylene rod;
[0022] 160, sealant;
[0023] 170, cast-in-place beam. DETAILED DESCRIPTION
[0024] The utility model will be described in detail below in combination with the drawings: according to the following description, the advantages and characteristics of the utility model will be more clear.It should be noted that the drawings are all very simplified and all use non-precise scale, only to facilitate, clear and assist the purpose of explaining the embodiment of the utility model.
[0025] Embodiment one
[0026] Please refer to Figure 1The utility model embodiment one provides a kind of building outer wall and composite board node place cast-in-place layer exempts from formwork construction system 100, the building outer wall 110 is by the lower prefabricated sandwich heat insulation outer wall component of UHPC prefabricated shear wall outer side wall 111 and shear wall inner side wall 113 on its two sides and heat preservation layer 112, the upper end of the UHPC prefabricated shear wall outer side wall 111 is higher than the upper end of prefabricated shear wall inner side wall, the height difference section 114 of the UHPC prefabricated shear wall outer side wall 111 higher than prefabricated shear wall inner side wall is as the end formwork of building outer wall 110 and composite board node place cast-in-place layer, the upper and lower sections of the UHPC prefabricated shear wall outer side wall 111 have tongue and groove 115, the composite board 120 is partially installed in the upper end of the prefabricated shear wall inner side wall 113, and the cast-in-place layer 130 is located on the shear wall inner side wall 113 between the UHPC prefabricated shear wall outer side wall 111 and composite board 120 and on composite board 120.UHPC is Ultra-High Performance Concrete, and it is called UHPC (Ultra-High Performance Concrete) for short.The thickness of prefabricated shear wall inner side wall 113 is greater than UHPC prefabricated shear wall outer side wall 111.The shear wall inner side wall 113 is prefabricated component.
[0027] Please refer to Figure 1 To improve the waterproof performance of upper and lower building outer wall 110 being prefabricated sandwich heat insulation outer wall component assembly connection, the building outer wall and composite board node place cast-in-place layer exempts from formwork construction system 100 provided by the utility model embodiment one, the building outer wall 110 further includes the upper prefabricated sandwich heat insulation outer wall component that is assembled in the upper of cast-in-place layer 120 and the UHPC prefabricated shear wall outer side wall of lower prefabricated sandwich heat insulation outer wall component, and the inner side joint of upper and lower prefabricated sandwich heat insulation outer wall component 110 is constructed with post-poured section 140, and the outer side tongue and groove 115 joint of upper and lower prefabricated sandwich heat insulation outer wall component 110 is constructed with polyethylene stick 150 and sealant 160.
[0028] The utility model embodiment one provides building outer wall and composite board node place cast in place layer exempts from formwork construction system 100, through UHPC prefabricated shear wall outside wall 111 is higher than the height difference section 114 of prefabricated shear wall inside wall 113 as building outer wall 110 and the end template of composite board 120 node place cast in place layer 130, thereby exempts from the process that additional end template is set up at building outer wall 110 before traditional cast in place layer 130 construction and the template removal process after cast in place layer 130 construction, reduce the work load, shorten the construction period, improve the construction efficiency of cast in place layer 130, avoid the problem of building garbage produced in the process of setting and removing template, have the advantages of energy saving and environmental protection, through the superhigh durability and superhigh mechanical property of UHPC material as the strength of end template, guarantee the construction quality of cast in place layer 130. Since building outer wall 110 is prefabricated sandwich heat preservation outer wall component, improve the heat preservation performance and waterproof performance of building outer wall 110.
[0029] The building outer wall and composite board node place cast in place layer exempts from formwork construction system 100 provided by the utility model embodiment one is applicable to the situation that prefabricated sandwich heat preservation outer wall component is used to construct building outer wall 110.
[0030] Embodiment two
[0031] Please refer to Figure 2 The building outer wall and composite board node place cast in place layer exempts from formwork construction system 100 provided by the utility model embodiment two is improved on the basis of embodiment one, and the difference lies in that the building outer wall 110 is a lower prefabricated cast in place hybrid structure formed by the heat preservation layer 112 integrated on the UHPC prefabricated shear wall outside wall 111 and the cast in place shear wall inside wall 113a, and the cast in place shear wall inside wall 113a replaces the prefabricated shear wall inside wall 113. That is, the lower prefabricated cast in place hybrid structure replaces the lower prefabricated sandwich heat preservation outer wall component.
[0032] At this time, the height difference section 114 that UHPC prefabricated shear wall outside wall 111 is higher than cast in place shear wall inside wall 113a is used as the end template of cast in place layer 130 at the node of building outer wall 110 and composite board 120.
[0033] Please refer to Figure 2 In order to improve the waterproofness of the upper and lower construction nodes, the building outer wall and composite board node place cast in place layer exempts from formwork construction system 100 provided by the utility model embodiment two, the building outer wall 110 further includes an upper prefabricated cast in place hybrid structure constructed above the UHPC prefabricated shear wall outside wall 111 of the cast in place layer 120 and the lower prefabricated cast in place hybrid structure, and a polyethylene rod 150 and a sealant 160 are constructed at the outside tongue-and-groove joint of the upper and lower prefabricated cast in place hybrid structures.
[0034] The embodiment two of the utility model provides a building outer wall and composite board node place cast-in-place layer exempts from formwork construction system 100, applicable to the situation that building outer wall 110 is cast-in-place structure and prefabricated outer hanging wall board construction.
[0035] Embodiment three
[0036] Please refer to Figure 3 The embodiment three of the utility model provides a building outer wall and composite board node place cast-in-place layer exempts from formwork construction system 100, which is the improvement based on the embodiment one, and the difference lies in that the prefabricated shear wall inside wall 113 is constructed with cast-in-place beam 170, the composite board 120 is partially installed on cast-in-place beam 170, and the high difference section 114 of UHPC prefabricated shear wall outside wall 111 higher than cast-in-place beam 170 is used as the end template of building outer wall 110 and composite board 120 node place cast-in-place layer 130.
[0037] Please refer to Figure 3 In order to improve the waterproofness of up and down construction nodes, the building outer wall and composite board node place cast-in-place layer exempts from formwork construction system 100 provided by the embodiment three of the utility model, the building outer wall 110 further includes upper prefabricated cast-in-place mixed structure constructed above UHPC prefabricated shear wall outside wall 111 of cast-in-place layer 120 and lower prefabricated sandwich thermal insulation outer wall component, and the upper prefabricated cast-in-place mixed structure and the outside tongue-and-groove joint of the lower prefabricated sandwich thermal insulation outer wall component are constructed with polyethylene rod 150 and sealant 160.
[0038] The building outer wall and composite board node place cast-in-place layer exempts from formwork construction system 100 provided by the embodiment three of the utility model is applicable to the situation with cast-in-place beam 170.
[0039] The utility model is not limited to the above specific implementation, obviously, the above described embodiment is a part of the embodiment of the utility model embodiment, but not all the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by the person skilled in the art belong to the scope of the utility model protection. The person skilled in the art can make other levels of modification and change to the utility model. Thus, if these modifications and changes of the utility model are within the scope of the claims of the utility model, the utility model also intends to include these changes and variations.
Claims
1. A construction outer wall and laminated board node place cast-in-place layer exempt formwork construction system, characterized in that, The building outer wall is a lower prefabricated sandwich insulation outer wall component composed of an insulation layer and UHPC prefabricated shear wall outer side wall and prefabricated shear wall inner side wall on both sides of the insulation layer, the upper end of the UHPC prefabricated shear wall outer side wall is higher than the upper end of the prefabricated shear wall inner side wall, the height difference between the UHPC prefabricated shear wall outer side wall and the prefabricated shear wall inner side wall serves as an end formwork of a cast-in-place layer at a building outer wall and composite board joint, the upper and lower sections of the UHPC prefabricated shear wall outer side wall have a tongue-and-groove, the composite board is partially installed at the upper end of the shear wall inner side wall, and the cast-in-place layer is located on the shear wall inner side wall between the UHPC prefabricated shear wall outer side wall and the composite board and on the composite board.
2. The construction outer wall and laminated slab node place cast-in-situ layer exempt formwork construction system according to claim 1, characterized in that, The building outer wall further comprises an upper prefabricated sandwich insulation outer wall component assembled and installed above the cast-in-place layer and the UHPC prefabricated shear wall outer side wall of the lower prefabricated sandwich insulation outer wall component, a post-poured section is constructed at the inner side joint of the upper and lower prefabricated sandwich insulation outer wall components, and a polyethylene rod and sealant are constructed at the outer side tongue-and-groove joint of the upper and lower prefabricated sandwich insulation outer wall components.
3. The constructional exterior wall and laminated slab node cast-in-place layer free formwork construction system according to claim 1, characterized in that, The building outer wall is a lower prefabricated cast-in-place hybrid structure composed of a prefabricated outer hanging wall panel formed by an insulation layer integrated on a UHPC prefabricated shear wall outer side wall and a cast-in-place shear wall inner side wall, and the cast-in-place shear wall inner side wall replaces the prefabricated shear wall inner side wall.
4. The construction outer wall and laminated slab node place cast-in-situ layer exempt formwork construction system according to claim 3, characterized in that, The building outer wall further comprises an upper prefabricated cast-in-place hybrid structure constructed above the cast-in-place layer and the UHPC prefabricated shear wall outer side wall of the lower prefabricated cast-in-place hybrid structure, and a polyethylene rod and sealant are constructed at the outer side tongue-and-groove joint of the upper and lower prefabricated cast-in-place hybrid structures.
5. The construction of the building outer wall and the composite board node place cast-in-situ layer exempt formwork construction system according to claim 1, characterized in that, A cast-in-place beam is constructed on the prefabricated shear wall inner side wall, the composite board is partially installed on the cast-in-place beam, and the height difference between the UHPC prefabricated shear wall outer side wall and the cast-in-place beam serves as an end formwork of a cast-in-place layer at a building outer wall and composite board joint.
6. The construction outer wall and laminated slab node place cast-in-situ layer exempt formwork construction system according to claim 5, characterized in that, The building outer wall further comprises an upper prefabricated cast-in-place hybrid structure constructed above the cast-in-place layer and the UHPC prefabricated shear wall outer side wall of the lower prefabricated sandwich insulation outer wall component, and a polyethylene rod and sealant are constructed at the outer side tongue-and-groove joint of the upper prefabricated cast-in-place hybrid structure and the lower prefabricated sandwich insulation outer wall component.