Processing construction technology for assembled building floor settlement position
By connecting the precast groove bottom with the inner steel mold and the bottom steel mold, and fixing it with reinforced hangers and through bolt assemblies, the problem of inconsistent support at the floor settlement point was solved, achieving stable pouring and improved space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-03
AI Technical Summary
In the existing building structure, the grooves in the floor settlement area cause inconsistent heights of the steel formwork supporting the floor slab, occupying the space below, and the multiple square timber supports further occupy space.
The precast groove bottom is connected to the inner steel mold and the bottom steel mold, and fixed by the reinforcing hangers and through bolts to form a casting space. The cast-in-place body is connected to the precast groove bottom by connecting bars to avoid the need for multiple square timber supports at the bottom.
This method achieves stable pouring at the floor settlement point, avoids the space occupation problem caused by multiple square timber supports for the bottom formwork in the groove area, and improves construction efficiency and space utilization.
Smart Images

Figure CN120946100B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a construction structure for floor settlement without opening holes, belonging to the field of building construction technology. Background Technology
[0002] In a building structure, the recessed area that sinks downward will occupy the space below, resulting in inconsistent heights of the support rods that support the bottom steel formwork of the floor slab.
[0003] The existing building structure support technology for recessed areas, as described in Chinese Patent Publication No. CN217811195U, uses multiple square timbers to support the bottom formwork, which further occupies the space for the recessed area to descend. Summary of the Invention
[0004] To address the aforementioned technical problems, this invention provides a construction process for treating settlement at the floor level of prefabricated buildings.
[0005] The present invention is achieved through the following technical solutions.
[0006] The present invention provides a construction process for treating settlement at the floor level of a prefabricated building, comprising: a construction process for constructing an opening structure at the settlement point of the floor level.
[0007] The aforementioned construction process includes: a bottom steel formwork supported by support rods; a reinforcing hanger connected to the horizontal section of the bottom steel formwork via through bolt assemblies; an inner steel formwork connected to the reinforcing hanger; and positioning steel plates of the precast groove bottom body fixed at both ends to the bottom steel formwork and the inner steel formwork, so that the precast groove bottom body receives the fixed connection and force from the bottom steel formwork and the inner steel formwork, and the bottom of the precast groove bottom body does not require support. Concrete is poured into the pouring space formed by the inner steel formwork, the vertical section of the bottom steel formwork, and the precast groove bottom body to form a cast-in-place body. At this time, the cast-in-place body and the precast groove bottom body are connected and assembled by connecting bars, and the vertical section of the cast-in-place body and the precast groove bottom body form a floor settlement groove.
[0008] The construction structure for opening holes at the floor settlement location includes:
[0009] A prefabricated groove bottom body with positioning steel plates embedded at both ends;
[0010] The positioning steel plates at both ends of the precast groove bottom are fixed in accordance with the bottom steel mold and the inner steel mold.
[0011] The precast groove bottom with positioning steel plate has L-shaped cast-in-place bodies at both ends, and the vertical section of the cast-in-place body and the precast groove bottom form a floor settlement groove.
[0012] The precast groove bottom is pre-embedded with connecting ribs that extend into the cast-in-place body, and the precast groove bottom and the cast-in-place body are connected by the connecting ribs.
[0013] The bottom of the horizontal section of the bottom steel formwork has a support rod that provides support; the top of the inner steel formwork is fixedly connected to a reinforcing rod, the bottom surfaces of both ends of the reinforcing rod can contact the cast-in-place body, and the two ends of the reinforcing rod are fixedly connected to the horizontal section of the bottom steel formwork by through bolt assemblies.
[0014] An opening sleeve is pre-embedded in the cast-in-place body corresponding to the through bolt assembly, and the opening sleeve forms an opening for the bolt body of the through bolt assembly to pass through.
[0015] The beneficial effects of this invention are as follows: the vertical section of the cast-in-place body is poured through a casting space formed by the inner steel mold, the vertical section of the bottom steel mold, and the precast groove bottom body. The top of the precast groove bottom body is connected and limited to the horizontal section of the bottom steel mold through the inner steel mold and the reinforcing hanger. The bottom of the precast groove bottom body is connected and limited to the vertical section of the bottom steel mold through the positioning steel plate. The weight of the precast groove bottom body is transferred to the bottom steel mold, so that the bottom of the precast groove bottom body does not need to be supported by multiple square timbers. This solves the problem that the bottom mold of the groove area is supported by multiple square timbers, which leads to the further occupation of the descent space. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the present invention;
[0017] In the figure: 1-Precast groove bottom; 11-Positioning steel plate; 12-Connecting rib; 2-Cast-in-place body; 3-Inner steel mold; 31-Telescopic rod; 4-Bottom steel mold; 41-Support rod; 5-Reinforcing hanger; 6-Through bolt assembly; 61-Opening sleeve. Detailed Implementation
[0018] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.
[0019] See Figure 1 As shown.
[0020] This application discloses a construction structure for opening holes at floor settlement points, comprising:
[0021] The prefabricated groove bottom 1 is constructed by prefabrication, and positioning steel plates 11 are pre-embedded at both ends of the prefabricated groove bottom 1.
[0022] The precast groove bottom 1 with positioning steel plate 11 has L-shaped cast-in-place bodies 2 at both ends. The vertical section of the cast-in-place body 2 and the precast groove bottom 1 form a floor settlement groove. The precast groove bottom 1 has pre-embedded connecting bars 12 that extend into the cast-in-place body 2. The precast groove bottom 1 and the cast-in-place body 2 are connected by the connecting bars 12.
[0023] The positioning steel plates 11 at both ends of the precast groove bottom 1 are welded and fixedly connected to the inner steel mold 3 and the bottom steel mold 4. The inner steel molds 3 are supported by telescopic rods 31.
[0024] The bottom of the horizontal section of the bottom steel mold 4 has a support rod 41 for support; the top of the inner steel mold 3 is fixedly connected to a reinforcing rod 5 by bolts, and the two ends of the reinforcing rod 5 are connected to the horizontal section of the bottom steel mold 4 by through bolt assemblies 6; the cast-in-place body 2 corresponding to the through bolt assembly 6 has a pre-embedded opening sleeve 61, which forms an opening for the screw body of the through bolt assembly 6 to pass through.
[0025] During the casting of the cast-in-place body 2, the vertical section of the cast-in-place body 2 is cast through the casting space formed by the inner steel mold 3, the vertical section of the bottom steel mold 4, and the precast groove bottom body 1. The top of the precast groove bottom body 1 is connected and limited to the horizontal section of the bottom steel mold 4 through the inner steel mold 3 and the reinforcing hanger 5. The bottom of the precast groove bottom body 1 is connected and limited to the vertical section of the bottom steel mold 4 through the positioning steel plate 11. The weight of the precast groove bottom body 1 is transferred to the bottom steel mold 4, so that the bottom of the precast groove bottom body 1 does not need to be supported by multiple square timbers. This solves the problem that the bottom mold of the groove area is supported by multiple square timbers, which leads to the further occupation of the descending space.
[0026] This application discloses a construction process for treating floor settlement in prefabricated buildings, particularly a construction process for creating openings at floor settlement points, comprising the following steps:
[0027] The bottom steel mold 4 is supported by the support rod 41. The reinforcing hanger 5 is connected to the horizontal section of the bottom steel mold 4 by the through bolt assembly 6. The inner steel mold 3 is connected to the reinforcing hanger 5. The two ends of the positioning steel plate 11 of the precast groove bottom 1 are welded and fixed to the bottom steel mold 4 and the inner steel mold 3, so that the precast groove bottom 1 is fixedly connected to the bottom steel mold 4 and the inner steel mold 3 and bears the force. The bottom of the precast groove bottom 1 does not need to be supported. Concrete is poured into the pouring space formed by the inner steel mold 3, the vertical section of the bottom steel mold 4 and the precast groove bottom 1 to form the cast-in-place body 2. At this time, the cast-in-place body 2 and the precast groove bottom 1 are connected and assembled by the connecting bar 12. The vertical section of the cast-in-place body 2 and the precast groove bottom 1 form a floor settlement groove.
Claims
1. A construction process for treating settlement at the floor level of a prefabricated building, characterized in that, include: Construction process for constructing structures with openings at floor settlement points; The construction process includes supporting the bottom steel mold (4) with a support rod (41), connecting the reinforcing rod (5) to the horizontal section of the bottom steel mold (4) with a through bolt assembly (6), connecting the inner steel mold (3) to the reinforcing rod (5), fixing the two ends of the positioning steel plate (11) of the precast groove bottom body (1) to the bottom steel mold (4) and the inner steel mold (3) respectively, so that the precast groove bottom body (1) can be fixed and connected to the bottom steel mold (4) and the inner steel mold (3) and the bottom of the precast groove bottom body (1) does not need to be supported; using concrete to pour into the pouring space formed by the inner steel mold (3), the vertical section of the bottom steel mold (4) and the precast groove bottom body (1) to form the cast-in-place body (2), at this time the cast-in-place body (2) and the precast groove bottom body (1) are connected and assembled by the connecting bar (12), and the vertical section of the cast-in-place body (2) and the precast groove bottom body (1) form a floor settlement groove.
2. The construction process for treating settlement at the floor level of a prefabricated building as described in claim 1, characterized in that, The construction structure for opening holes at the floor settlement location includes: A prefabricated groove bottom body (1) with positioning steel plates (11) embedded at both ends; The positioning steel plates (11) at both ends of the prefabricated groove bottom body (1) are fixed in correspondence with the bottom steel mold (4) and the inner steel mold (3).
3. The construction process for treating settlement at the floor level of a prefabricated building as described in claim 2, characterized in that: The precast groove bottom (1) with positioning steel plate (11) has L-shaped cast-in-place bodies (2) at both ends. The vertical section of the cast-in-place body (2) and the precast groove bottom (1) form a floor settlement groove.
4. The construction process for treating settlement at the floor level of a prefabricated building as described in claim 2, characterized in that: The precast groove bottom body (1) is pre-embedded with connecting ribs (12) extending into the cast-in-place body (2), and the precast groove bottom body (1) and the cast-in-place body (2) are connected by the connecting ribs (12).
5. The construction process for treating settlement at the floor level of a prefabricated building as described in claim 2, characterized in that: The bottom of the horizontal section of the bottom steel mold (4) has a support rod (41) that provides support; the top of the inner steel mold (3) is fixedly connected with a reinforcing rod (5), the bottom surfaces of both ends of the reinforcing rod (5) can contact the cast-in-place body (2), and the two ends of the reinforcing rod (5) are fixedly connected to the horizontal section of the bottom steel mold (4) by through bolt assemblies (6).
6. The construction process for treating settlement at the floor level of a prefabricated building as described in claim 5, characterized in that: An opening sleeve (61) is pre-embedded in the cast-in-place body (2) corresponding to the through bolt assembly (6), and the opening sleeve (61) forms an opening for the through bolt assembly (6) screw body to pass through.