CN-122013938-A - Fixing device, assembly and construction method of fiber cement board disassembly-free bottom die steel bar truss

Abstract

The invention relates to the technical field of building construction, in particular to a fixing device, a component and a construction method of a fiber cement board dismantling-free bottom die steel bar truss, wherein the device comprises a metal embedded board embedded in the fiber cement board, the embedded board is provided with an arc-shaped base for supporting the steel bar truss, the base is connected with an arc-shaped cover board through a hinge, the fixed buckle of apron free end presses the board elasticity joint with the buckle of base, forms the closed space of fixed steel bar truss, and anti-skidding structure is established to base and apron inner wall, buries the structure of board area reinforcing anchor force, but base and buries board welding, riveting or bolted connection. And embedding the embedded plate during construction, placing the steel bar truss, rotating the cover plate, and pressing the buckle pressing plate to complete locking. The device has the advantages of simple structure, convenient installation, no need of fire and perforation, realization of quick and accurate positioning and firm fixation of the steel bar truss, tight combination with the fiber cement plate, no damage to the bottom die, good suitability and practicality, effective promotion of construction efficiency and structural safety, and reduction of construction cost.

Inventors

• WANG XIN
• GAI XIAOYU
• SHI TENG
• YANG JING
• ZHANG GUOJIAN

Assignees

• 中国二十二冶集团有限公司

Dates

Publication Date

20260512

Application Date

20260331

Claims (8)

1. 1. A fixing device of a fiber cement board disassembly-free bottom die steel bar truss is characterized by comprising a buried plate (7) embedded in a fiber cement board (5), wherein an arc-shaped base (4) is fixedly arranged on the buried plate (7), the arc-shaped base (4) is used for supporting the steel bar truss, one side of the arc-shaped base (4) is rotatably connected with an arc-shaped cover plate (6) through a hinge (1), the arc-shaped cover plate (6) can rotate to cover the upper portion of the arc-shaped base (4), so that a closed space for accommodating and fixing the steel bar truss is jointly formed in the arc-shaped base (4), a fixing buckle (2) is arranged at the free end of the arc-shaped cover plate (6), and a buckle pressing plate (3) used for being matched and locked with the fixing buckle (2) is arranged at the corresponding position of the arc-shaped base (4).
2. 2. The fixing device of a fiber cement board disassembly-free bottom die steel bar truss according to claim 1, wherein at least one of the fixing buckle (2) and the buckle pressing plate (3) adopts an elastic member, so that locking is realized through elastic clamping.
3. 3. The fixing device of the fiber cement board disassembly-free bottom die steel bar truss according to claim 1, wherein the inner wall surface of the arc-shaped base (4) and/or the arc-shaped cover plate (6) is provided with an anti-slip structure.
4. 4. The fiber cement board disassembly-free bottom die steel bar truss fixing device according to claim 3, wherein the anti-slip structure is a concave-convex grain or an anti-slip rubber layer.
5. 5. The fixing device of a fiber cement board disassembly-free bottom die steel bar truss according to claim 1, wherein the buried plate (7) is made of metal plates, and holes, protrusions or bending structures for enhancing the anchoring force with the fiber cement board (5) are arranged on the surface of the buried plate.
6. 6. The fixing device of the fiber cement board disassembly-free bottom die steel bar truss according to claim 1, wherein the arc-shaped base (4) and the buried board are detachably connected through welding, riveting or bolts to realize assembly.
7. 7. Assembly of a fibre cement board disassembly-free counter-form steel bar truss, characterized in that it comprises a fibre cement board (5) and at least one fixing device according to any one of claims 1-6, in which a buried board (7) is pre-buried.
8. 8. A construction method of a fiber cement board disassembly-free bottom die steel bar truss, which is characterized by comprising the following specific steps of: s1, embedding a buried plate (7) of a fixing device in a fiber cement plate (5); s2, placing the steel bar truss on an arc-shaped base (4); S3, rotating the arc-shaped cover plate (6) to cover the steel bar truss and the upper part of the arc-shaped base (4); S4, pressing the buckle pressing plate (3) to lock the buckle pressing plate (3) and the fixed buckle (2) so as to finish fixation.

Description

Fixing device, assembly and construction method of fiber cement board disassembly-free bottom die steel bar truss Technical Field The invention relates to the technical field of building construction, in particular to a fixing device, a fixing component and a fixing construction method for a fiber cement board dismantling-free bottom die steel bar truss. Background The fiber cement board has the characteristics of high strength, fire resistance, water resistance, good durability and the like, is widely applied to the construction of the disassembly-free bottom die of the building engineering, and is a key link for ensuring the integral stability and construction safety of the assembled building cover, wall and other structures. At present, in the fixation construction of the fiber cement board disassembly-free bottom die and the steel bar truss, the traditional fixation mode mostly adopts means such as welding, binding steel wires or directly fixing by bolts. The welding mode not only needs on-site fire operation and is greatly limited by construction environment, but also is easy to cause thermal damage to the fiber cement plate and reduce the structural performance of the bottom die, the mode of binding steel wires is complex in operation and low in construction efficiency, the binding firmness is difficult to ensure, the problems of displacement and loosening of a steel bar truss easily occur in the subsequent concrete pouring and vibrating process, the structure positioning precision is affected, the bolt fixing mode needs to be used for punching holes in the fiber cement plate in advance, the integrity of the bottom die is damaged, the construction process is increased, the dismounting flexibility of the bolt connection is poor, and the adjustment and the reworking in the construction process are not facilitated. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a fixing device, a fixing component and a fixing construction method for a fiber cement board dismantling-free bottom die steel bar truss, which are simple in structure, convenient to install and reliable in connection. The technical scheme adopted for solving the technical problems is as follows: A fixing device of a fiber cement board disassembly-free bottom die steel bar truss comprises a buried plate which is pre-buried in the fiber cement board, wherein an arc-shaped base is fixedly arranged on the buried plate and used for supporting the steel bar truss, one side of the arc-shaped base is rotationally connected with an arc-shaped cover plate through a hinge, the arc-shaped cover plate can rotate to cover the upper portion of the arc-shaped base, so that a closed space for accommodating and fixing the steel bar truss is formed in the arc-shaped base together, a fixing buckle is arranged at the free end of the arc-shaped cover plate, and a buckle pressing plate used for being matched and locked with the fixing buckle is arranged at the corresponding position of the arc-shaped base and the fixing buckle. Preferably, the invention further adopts the technical scheme that: Preferably, at least one of the fixing buckle and the buckle pressing plate adopts an elastic member, so that locking is realized through elastic clamping. Preferably, the inner wall surface of the arc-shaped base and/or the arc-shaped cover plate is provided with an anti-slip structure. Preferably, the anti-slip structure is a concave-convex texture or an anti-slip rubber layer. Preferably, the buried plate is a metal plate, and the surface of the buried plate is provided with holes, protrusions or bending structures for enhancing the anchoring force with the fiber cement plate. Preferably, the arc-shaped base and the buried plate are detachably connected through welding, riveting or bolts to realize assembly. The embodiment of the invention also discloses an assembly of the fiber cement board disassembly-free bottom die steel bar truss, which comprises the fiber cement board and at least one fixing device, wherein the buried board in the fixing device is embedded in the fiber cement board. The embodiment of the invention also discloses a construction method of the fiber cement board disassembly-free bottom die steel bar truss, which is carried out by applying the fixing device and comprises the following specific steps: s1, embedding a buried plate of a fixing device in a fiber cement plate; s2, placing the steel bar truss on an arc-shaped base; s3, rotating the arc-shaped cover plate to cover the steel bar truss and the arc-shaped base; and S4, pressing the buckle pressing plate to lock the buckle pressing plate and the fixed buckle, so as to finish fixation. Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that: the device realizes the rotary opening and closing of the arc-shaped cover plate through the hinge, the locking and fixing can be completed by only rotating th