Eccentricity adjusting device for open fire test of full-scale component
By designing a device consisting of a fixed plate, an eccentric adjustment plate, and a connecting end, the problem of eccentric adjustment in open flame tests was solved, enabling flexible adjustment of the degree of eccentricity of the rod and loading of different eccentricities, thus simulating the mechanical behavior of eccentric compression.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EAST CHINA ARCHITECTURE DESIGN AND RESEARCH INSTITUTE CO LTD
- Filing Date
- 2024-12-12
- Publication Date
- 2026-04-17
AI Technical Summary
Existing technologies cannot adjust the degree of eccentricity in full-scale open flame tests of components, nor can they simulate loading with different eccentricities, resulting in an inability to effectively simulate the mechanical behavior and failure modes under eccentric compression.
A device comprising a fixed plate, an eccentric adjustment plate, and a connecting end is designed. The eccentric adjustment plate is slidable and fixed by bolt connection through longitudinal sliding holes and mating holes. Combined with the connection of the cover plate and bolt assembly, the degree of eccentricity of the rod is adjusted.
It enables flexible adjustment of the degree of eccentricity in open flame tests, allowing for the loading of different eccentricities to simulate the mechanical behavior under different eccentric compression states.
Smart Images

Figure CN224135500U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of component testing equipment, and more specifically to an eccentric adjustment device for open flame testing of full-scale components. Background Technology
[0002] Currently, when full-scale components are installed on reaction frames for open flame testing, the degree of eccentricity of the full-scale components cannot be adjusted, thus making it impossible to load components with different eccentricities and effectively simulate the mechanical behavior and failure modes under eccentric compression.
[0003] Therefore, providing an eccentricity adjustment device for open flame testing of full-scale components is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the present invention provides an eccentricity adjustment device for open flame testing of full-scale components, which can adjust the degree of eccentricity during the loading process.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An eccentricity adjustment device for open flame testing of full-scale components, comprising:
[0007] The fixing plate has a plurality of longitudinal sliding holes arranged in a matrix; the fixing plate also has a plurality of fixing holes for bolt connection with the reaction frame.
[0008] An eccentric adjusting plate has multiple mating holes corresponding to the positions of the longitudinal sliding holes; each mating hole is bolted to the corresponding longitudinal sliding hole.
[0009] A connecting end is fixed to the eccentric adjustment plate; the rod is seamlessly connected to the connecting end through multiple cover plates and multiple bolt assemblies.
[0010] By adopting the above technical solutions, the beneficial effects of this utility model are as follows:
[0011] The eccentric adjustment plate can slide along the longitudinal sliding hole and be tightened with bolts and nuts after the position is adjusted, thereby realizing the adjustment of the eccentricity of the rod and the loading of different eccentricities.
[0012] Furthermore, the connecting end is I-shaped, the top plate of the connecting end corresponds to the upper flange of the rod and is connected together by a first cover plate and multiple bolt assemblies, the bottom plate of the connecting end corresponds to the lower flange of the rod and is connected together by a second cover plate and multiple bolt assemblies, and the main plate of the connecting end corresponds to the web plate of the rod and is connected together by a third cover plate and multiple bolt assemblies.
[0013] Furthermore, the connecting end is welded to the eccentric adjustment plate. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0015] Figure 1 The attached figure is a schematic diagram of the overall structure of an eccentric adjustment device for open flame testing of full-scale components provided by this utility model;
[0016] Figure 2 The attached figure is a structural schematic diagram of the fixing plate provided by this utility model;
[0017] Figure 3 The attached figure is a structural schematic diagram of the eccentric adjustment plate and connecting end provided by this utility model;
[0018] Figure 4 The attached figure is a structural schematic diagram of the cover plate provided by this utility model. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figure 1-4As shown in the figure, this utility model embodiment discloses an eccentric adjustment device for open flame testing of full-scale components, including a fixed plate 1, an eccentric adjustment plate 2, and a connecting end 3. The fixed plate 1 has a plurality of longitudinal sliding holes 11 arranged in a matrix; the fixed plate 1 has a plurality of fixing holes 12 for bolting to the reaction frame; the eccentric adjustment plate 2 has a plurality of mating holes 21 corresponding to the positions of the longitudinal sliding holes 11; each mating hole 21 is bolted to the corresponding longitudinal sliding hole 11; the connecting end 3 is fixed on the eccentric adjustment plate 2; the rod 4 and the connecting end 3 are seamlessly connected by a plurality of cover plates 5 and a plurality of bolt assemblies 6. The mating hole 21 of this utility model is bolted to the longitudinal sliding hole 11. When the position of the eccentric adjustment plate 2 is adjusted to adjust the eccentric position of the rod 4, the nut at the bolt extension end that passes through the mating hole 21 and the longitudinal sliding hole 11 is loosened, so that the eccentric adjustment plate 2 can slide along the longitudinal sliding hole 11. After the position is adjusted, the nut is tightened to fix the position of the fixing plate 1 and the eccentric adjustment plate 2, thereby realizing the adjustment of the eccentricity of the rod 4 to achieve loading of different eccentric distances.
[0021] Specifically, the connecting end 3 is I-shaped. The top plate of the connecting end 3 corresponds to the upper flange of the rod 4 and is connected together by a first cover plate and multiple bolt assemblies 6 (the top plate of the connecting end 3, the upper flange of the rod 4, and the first cover plate pressed on both are connected together by multiple bolt assemblies 6). The bottom plate of the connecting end 3 corresponds to the lower flange of the rod 4 and is connected together by a second cover plate and multiple bolt assemblies 6 (the bottom plate of the connecting end 3, the lower flange of the rod 4, and the second cover plate pressed on both are connected together by multiple bolt assemblies 6). The main plate of the connecting end 3 corresponds to the web plate of the rod 4 and is connected together by a third cover plate and multiple bolt assemblies 6 (the main plate of the connecting end 3, the web plate of the rod 4, and the third cover plate pressed on both are connected together by multiple bolt assemblies 6). In this embodiment, each bolt assembly 6 includes a bolt and a nut, which is prior art and will not be described in detail here.
[0022] Specifically, the connecting end 3 is welded to the eccentric adjustment plate 2 to ensure a reliable connection under high-temperature conditions during the test.
[0023] Assembly process of this utility model:
[0024] First, the fixing plate 1 is fixed to the reaction frame with bolts at the fixing hole 12 position. Then, the rod 4 is aligned with the connecting end 3. A cover plate is placed on the main plate of the connecting end 3 and the web plate of the rod 4, and connected using multiple bolt assemblies 6. Next, a cover plate is placed on the top plate of the connecting end 3 and the upper flange of the rod 4, and connected using multiple bolt assemblies 6. A cover plate is placed on the bottom plate of the connecting end 3 and the lower flange of the rod 4, and connected using multiple bolt assemblies 6. Finally, the mating hole 21 of the eccentric adjustment plate 2 is aligned with the longitudinal sliding hole 11, and moved up and down to adjust to a suitable position. The fixing plate 1 and the eccentric adjustment plate 2 are fixed using bolts and nuts.
[0025] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.
[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A full-scale member fire test eccentricity adjustment device, characterized by, include: The fixing plate has a plurality of longitudinal sliding holes arranged in a matrix; the fixing plate also has a plurality of fixing holes for bolt connection with the reaction frame. An eccentric adjusting plate has multiple mating holes corresponding to the positions of the longitudinal sliding holes; each mating hole is bolted to the corresponding longitudinal sliding hole. A connecting end is fixed to the eccentric adjustment plate; the rod is seamlessly connected to the connecting end through multiple cover plates and multiple bolt assemblies.
2. A full scale member fire test eccentricity adjustment device according to claim 1, characterised in that, The connecting end is I-shaped. The top plate of the connecting end corresponds to the upper flange of the rod and is connected together by a first cover plate and multiple bolt assemblies. The bottom plate of the connecting end corresponds to the lower flange of the rod and is connected together by a second cover plate and multiple bolt assemblies. The main plate of the connecting end corresponds to the web plate of the rod and is connected together by a third cover plate and multiple bolt assemblies.
3. A full scale member fire test eccentricity adjustment device according to claim 1 or 2, characterised in that, The connecting end is welded to the eccentric adjustment plate.