A reusable box building floor structure rigid system
The modular node system, which combines ALC strip panels with horizontal load-bearing frames, solves the problems of comfort and reusability of prefabricated building floor structures, and realizes a building solution that is efficient in construction and sustainable in development.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI FEILONG CONSTR TECH R&D CENT CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot simultaneously ensure both the comfort of foot traffic and the reusability of prefabricated building floor structures, resulting in low construction efficiency and failing to meet the principles of sustainable development.
A modular node system combining ALC strip plates and horizontal load-bearing frames is adopted, forming an overall rigid structure through high-strength bolt connections. Orthogonal stiffening ribs are set in key stress areas, and detachable connections are achieved by combining dry construction technology.
It achieves the same level of foot comfort as cast-in-place concrete, improves thermal insulation performance, reduces total life cycle costs, increases construction efficiency and material recyclability, and supports building layout flexibility and rapid demolition.
Smart Images
Figure CN224514410U_ABST
Abstract
Claims
1. A reusable rigid system for a modular building floor structure, comprising a vertical load-bearing component and a horizontal load-bearing frame fixedly connected to the top of the vertical load-bearing component for supporting floor units, characterized in that: The horizontal load-bearing frame is rectangular, including two main steel beams (210) extending along a first direction and fixedly connected between adjacent main steel columns (110) and arranged in parallel, and secondary steel beams (220) extending along a second direction perpendicular to the first direction and fixedly connected between adjacent main steel columns (110) and arranged in parallel. The main steel beams (210) and secondary steel beams (220) together enclose a rectangular frame. Multiple floor partition beams (230) are vertically fixed between the two main steel beams (210) to divide the horizontal load-bearing frame. The structure is divided into multiple rectangular areas, and the inner side of each rectangular area includes a supporting surface for the floor unit. The floor unit includes multiple continuously arranged ALC strips (310). The ALC strips (310) are laid on the steel beam structure layer along the second direction. There are installation gaps between adjacent ALC strips (310). A second connecting plate (242) extending into the installation gap is welded on the secondary steel beam (220). The ALC strips (310) are connected between the two main steel beams (210) by a detachable connecting assembly.
2. The reusable case building floor structure rigid body system of claim 1, wherein: The ALC strip plate (310) has a built-in double-layer steel mesh and uses a quartz sand reinforcement formula. The ALC strip plate (310) is provided with pre-made holes. The through-type detachable connection component is a through bolt (320) that is connected to the main steel beam (210) at both ends. After the through bolt (320) passes through the pre-made hole, it is locked with a nut.
3. The reusable case building floor structure rigid system of claim 1 or 2, wherein: A stainless steel sleeve is embedded in the pre-drilled hole, and the axis of the sleeve is perpendicular to the main steel beam (210).
4. The reusable case building floor structure rigid system of claim 1, wherein: The main steel beam (210) is a king-shaped steel beam, including an upper flange plate, a middle flange plate and a lower flange plate. The middle flange plate extends toward the inner side of the frame and extends beyond the plane where the inner side of the main steel column (110) is located. The secondary steel beam (220) is an I-shaped steel beam, including an upper flange plate and a lower flange plate. The width of the lower flange plate is greater than the width of the upper flange plate. The extension of the middle flange plate and the extension of the lower flange plate work together to form the supporting surface of the floor structure.
5. The reusable case building floor structural rigid system of claim 4, wherein: Let H be the distance between the top surface of the first middle flange plate and the top surface of the upper flange plate, h1 be the distance between the top surface of the upper flange plate and the top surface of the lower flange plate of the secondary steel beam (220), h2 be the distance between the upper flange plate and the lower flange plate of the separating secondary beam, and D be the thickness of the ALC strip plate (310). H = h1 = h2, and D ≥ H.
6. The reusable case building floor structural rigid system of claim 4, wherein: Multiple stiffening ribs (211) are symmetrically welded in the bolt connection area on the web of the main steel beam (210). The outer edge of the stiffening ribs (211) is flush with the side edge of the upper flange of the main steel beam (210). The stiffening ribs (211) are symmetrically distributed on both sides of the web of the main steel beam (210) and their width is equal to that of the upper flange of the main steel beam (210).
7. The reusable case building floor structural rigid system of claim 1, wherein: The end of the web of the floor partition secondary beam (230) is an arc-straight composite structure. A first connecting plate (241) is welded between the upper flange plate and the middle flange plate of the main steel beam (210). The first connecting plate (241) is provided with an arc-straight composite structure that is symmetrical to the end of the web of the floor partition secondary beam (230).