Adjustable back attached steel frame for uhpc curtain wall

Abstract

This utility model discloses an adjustable back-mounted steel frame for UHPC curtain walls. The embedded parts of this back-mounted steel frame are evenly distributed on both sides and the center of the back of the UHPC panel. The embedded parts are sequentially connected to shock-absorbing springs and three-dimensional adjustable adapters. Thin spring steel strips are horizontally connected to the three-dimensional adjustable adapters at intervals. Thin-walled connecting steel pipes are located on both sides of the UHPC panel and connect to the three-dimensional adjustable adapters on both sides of the UHPC panel. This back-mounted steel frame overcomes the defects of traditional UHPC panel installation, solving the technical problems of traditional back-mounted steel frames being bulky, having stiff connections, being difficult to adjust, and damaging the integrity of the UHPC panel, thus improving the installation quality and efficiency of UHPC panels.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to an adjustable back-attached steel frame for UHPC curtain walls. Background Technology

[0002] In traditional curtain wall projects that use UHPC materials as decorative panels, a steel frame needs to be attached to the back of the panels in order to perfectly display them to the public. However, UHPC materials are thin yet strong (low thickness, high strength), which makes them prone to deformation and cracking when exposed to high temperatures, affecting aesthetics and creating a risk of falling. At the same time, rainwater seepage can damage the UHPC structure, reducing its durability and diminishing the aesthetic and decorative function of the curtain wall.

[0003] Traditional steel back-mounted frames have many drawbacks. Heavy and rough, it usually uses thick steel sections (angle steel, channel steel) as the main material, which is heavy and increases the overall load; The connection is rough, with few and concentrated connection points to the UHPC panel (usually at the four corners), resulting in uneven force transmission. This can easily cause stress concentration at the connection points, leading to damage and brittle fracture of the UHPC panel. The connection points with the main structure are designed simply (such as direct welding or a few fixing bolt holes), and there is almost no or very difficult to make precise fine-tuning after installation. Installation errors are all solved by on-site cutting and shim stacking, which is inefficient and inaccurate. Destructive connections sometimes require drilling large holes in the UHPC panel to insert bolts, weakening the panel's strength and compromising the UHPC's integrity. Furthermore, in actual installation, the backing steel frame is often installed after the UHPC panel is manufactured, resulting in poor adaptability and a lack of overall design. Traditional backing steel frames also struggle to accommodate curved or irregularly shaped UHPC panels, offering limited versatility and flexibility. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an adjustable backing steel frame for UHPC curtain walls. This backing steel frame overcomes the defects of traditional UHPC panel installation, solves the technical problems of traditional backing steel frames being bulky, having stiff connections, being difficult to adjust, and damaging the integrity of UHPC panels, and improves the installation quality and efficiency of UHPC panels.

[0005] To solve the above-mentioned technical problems, the present invention provides an adjustable back-mounted steel frame for UHPC curtain walls, comprising a UHPC panel, embedded parts, shock-absorbing springs, three-dimensional adjustable adapters, thin spring steel strips, and thin-walled connecting steel pipes. The embedded parts are evenly distributed on both sides and the middle of the back of the UHPC panel. The embedded parts are sequentially connected to the shock-absorbing springs and the three-dimensional adjustable adapters. The thin spring steel strips are horizontally connected to the three-dimensional adjustable adapters at intervals. The thin-walled connecting steel pipes are located on both sides of the UHPC panel and connected to the three-dimensional adjustable adapters on both sides of the UHPC panel.

[0006] Furthermore, the three-dimensional adjustable adapter includes a base plate with a screw and a steel plate with a long slot. The base plate is disposed on the thin spring steel strip, the steel plate is disposed on the shock-absorbing spring, and the screw is movably connected to the long slot.

[0007] Furthermore, the three-dimensional adjustable adapter is a connecting lug with a ball joint, and the connecting lugs at both ends of the ball joint are respectively connected to the thin spring steel strip and the shock-absorbing spring.

[0008] Because this utility model's adjustable back-mounted steel frame for UHPC curtain walls adopts the aforementioned technical solution—namely, the embedded parts of the back-mounted steel frame are evenly distributed on both sides and the center of the back of the UHPC panel, and the embedded parts are sequentially connected to the shock-absorbing springs and three-dimensional adjustable adapters—thin spring steel strips are horizontally connected to the three-dimensional adjustable adapters at intervals, and thin-walled connecting steel pipes are located on both sides of the UHPC panel and connect to the three-dimensional adjustable adapters on both sides of the UHPC panel—this back-mounted steel frame overcomes the defects of traditional UHPC panel installation, solving the technical problems of traditional back-mounted steel frames being bulky, having stiff connections, being difficult to adjust, and damaging the integrity of the UHPC panel, thus improving the installation quality and efficiency of UHPC panels. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0010] Figure 1 This is a schematic diagram of the adjustable back-attached steel frame structure of this utility model for UHPC curtain walls;

[0011] Figure 2 This is a schematic diagram of the cross-section of the steel frame attached to the back;

[0012] Figure 3 This is a schematic diagram of the longitudinal section of the steel frame attached to the back. Detailed Implementation

[0013] Implementation, for example Figure 1 , Figure 2 and Figure 3As shown, the adjustable back-mounted steel frame for UHPC curtain walls of this utility model includes a UHPC panel 1, embedded parts 2, shock-absorbing springs 3, three-dimensional adjustable adapters 4, thin spring steel bars 5, and thin-walled connecting steel pipes 6. The embedded parts 2 are evenly distributed on both sides and the middle of the back of the UHPC panel 1. The embedded parts 2 are connected in sequence to the shock-absorbing springs 3 and the three-dimensional adjustable adapters 4. The thin spring steel bars 5 are horizontally connected to the three-dimensional adjustable adapters 4 at intervals. The thin-walled connecting steel pipes 6 are located on both sides of the UHPC panel 1 and are connected to the three-dimensional adjustable adapters 4 on both sides of the UHPC panel 1.

[0014] Preferably, the three-dimensional adjustable adapter 4 includes a base plate with a screw and a steel plate with a long slot. The base plate is disposed on the thin spring steel strip 5, the steel plate is disposed on the shock-absorbing spring 3, and the screw is movably connected to the long slot.

[0015] Preferably, the three-dimensional adjustable adapter 4 is a connecting lug with a ball joint, and the connecting lugs at both ends of the ball joint are respectively connected to the thin spring steel strip 5 and the shock-absorbing spring 3.

[0016] Thin spring steel bars and thin-walled connecting steel pipes form the framework on the back of the UHPC panel. Embedded components are densely distributed on the back of the UHPC panel. During UHPC panel casting, small-sized, high-strength connectors are precisely embedded on the back of the panel based on points calculated by stress analysis software. These embedded components cover the core stress area of ​​the panel, not just the four corners, according to the panel size and stress calculations. The corresponding connection points on the back of the steel frame are equipped with shock-absorbing springs and three-dimensional adjustable adapters, allowing for slight relative displacement / deformation under stress, absorbing some stress and avoiding rigid impacts. The three-dimensional adjustable adapters can be finely adjusted in the XY plane and the Z direction (in / out direction), enabling precise adjustment of the UHPC panel in the planar direction and perpendicular to the wall. Thin spring steel strips are connected to embedded parts on the UHPC panel via three-dimensional adjustable adapters. Thin spring steel strips have a certain degree of toughness and deformability, which can match the curvature of the UHPC panel and perfectly fit the complex curved surface of the UHPC panel.

[0017] This back-mounted steel frame distributes enormous external forces (wind pressure, seismic forces, etc.) to dozens or even more connection points composed of pre-embedded components. The force borne by each point is greatly reduced. Combined with the flexible design of shock-absorbing springs and thin spring steel bars, it completely eliminates stress concentration and the risk of UHPC panel cracking caused by traditional centralized connection points, maximizing the protection of the UHPC's integrity. At the same time, through three-dimensional adjustable adapters, a wide range of stepless and smooth fine-tuning can be achieved at the mounting point in three dimensions: up and down, left and right, and front and back (in and out). Installers only need to tighten a few bolts to easily and accurately position the huge and heavy curtain wall units to the millimeter level, completely eliminating the original method of on-site cutting and shim stacking. Installation efficiency, accuracy, and fault tolerance are greatly improved. Breaking through the limitation of traditional back-mounted frames that can only be applied to flat surfaces, it provides a reliable and lightweight support solution for complex UHPC curtain walls, greatly expanding the freedom of architectural design.

Claims

1. An adjustable back-mounted steel frame for UHPC curtain walls, comprising UHPC panels, characterized in that: It also includes embedded parts, shock-absorbing springs, three-dimensional adjustable adapters, thin spring steel strips, and thin-walled connecting steel pipes. The embedded parts are evenly distributed on both sides and the middle of the back of the UHPC panel. The embedded parts are connected in sequence with the shock-absorbing springs and the three-dimensional adjustable adapters. The thin spring steel strips are horizontally connected to the three-dimensional adjustable adapters at intervals. The thin-walled connecting steel pipes are located on both sides of the UHPC panel and connect to the three-dimensional adjustable adapters on both sides of the UHPC panel.

2. The adjustable backing steel frame for UHPC curtain walls according to claim 1, characterized in that: The three-dimensional adjustable adapter includes a base plate with a screw and a steel plate with a long slot. The base plate is located on the thin spring steel strip, the steel plate is located on the shock-absorbing spring, and the screw is movably connected to the long slot.

3. The adjustable backing steel frame for UHPC curtain walls according to claim 1, characterized in that: The three-dimensional adjustable adapter is a connecting lug with a ball joint, and the connecting lugs at both ends of the ball joint are respectively connected to the thin spring steel strip and the shock-absorbing spring.

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