CN-224213572-U - Steel construction outer wall

CN224213572UCN 224213572 UCN224213572 UCN 224213572UCN-224213572-U

Abstract

The utility model belongs to the technical field of building structures, and particularly relates to a steel structure outer wall. The steel structure outer wall comprises a main body steel structure, a keel member, a metal sandwich plate and a metal sandwich plate, wherein at least one group of connecting pieces are rigidly connected to the main body steel structure, the keel member comprises a plurality of transverse keels arranged in the horizontal direction at intervals and a plurality of vertical keels arranged in the vertical direction at intervals, the keel member is fixedly connected with the main body steel structure through the connecting pieces, the metal sandwich plate is located on one side, far away from the main body steel structure, of the keel member, and the metal sandwich plate is fixedly connected with the keel member through a fastener.

Inventors

Zhuang Chenggun
WANG YIYU
WANG DUXIN
ZHOU YANFENG
ZHENG SHIYUN
Luo Yexiong
LI HUIMIN
TU ZHENGXIAN

Assignees

广东电网能源发展有限公司

Dates

Publication Date: 20260508
Application Date: 20250417

Claims (10)

1.A steel structure exterior wall, comprising: the main body steel structure is rigidly connected with at least one group of connecting pieces; The keel member comprises a plurality of transverse keels arranged in the horizontal direction at intervals and a plurality of vertical keels arranged in the vertical direction at intervals, and the keel member is fixedly connected with the main body steel structure through the connecting piece; The metal sandwich plate is positioned on one side, far away from the main body steel structure, of the keel member, and the metal sandwich plate is fixedly connected with the keel member through a fastener.
2. The steel structure outer wall according to claim 1, further comprising a lining board and a decorative board, wherein the lining board is attached to one side of the keel member close to the main body steel structure and is fixedly connected with the keel member, the decorative board is covered on the outer side of the lining board and is fixed with the lining board in a flexible connection mode, a certain gap is formed between the lining board and the decorative board, and the gap is used for providing a dampproof, fireproof or sound insulation function and meeting indoor and outdoor decoration requirements.
3. The steel structure outer wall according to claim 2, wherein a closed cavity is formed by enclosing the metal sandwich plate, the keel member and the inner lining plate, a fire-resistant heat-insulating material is filled in the cavity, and fireproof sealant is coated on a plate seam in the cavity and a contact part of the keel member and the plate, so that heat and smoke are prevented from being rapidly transmitted in a fire disaster, and the fire resistance and heat insulation performance of the whole outer wall are improved.
4. The steel structure outer wall according to claim 1, wherein a vertical seam is arranged between two adjacent metal sandwich panels, a vertical seam clamping groove and a vertical seam fastener are arranged at the seam, the vertical seam clamping groove is omega-shaped, two ends of the vertical seam clamping groove are connected with the edges of the metal sandwich panels, the middle convex part of the vertical seam clamping groove is positioned in the vertical seam, the vertical seam fastener is matched and buckled with the vertical seam clamping groove, the vertical seam clamping groove is fixedly connected with the keel member through the fastener, and sealing materials are filled in the seam.
5. The steel structure outer wall according to claim 1, wherein when the vertical keels and the metal sandwich panels are dislocated so that two adjacent metal sandwich panels cannot be connected at the same time, an additional fixing piece is further arranged at a corner formed by the contact of the vertical keels and the metal sandwich panels, one side of the additional fixing piece is rigidly connected with the vertical keels, and the other side of the additional fixing piece is in contact with the metal sandwich panels and is fixedly connected with the metal sandwich panels through the fastening piece.
6. The steel structure outer wall according to claim 1, wherein the connecting piece comprises at least two steel plate pieces and at least two groups of bolt assemblies, one end of each steel plate piece is rigidly connected with the main steel structure, the other end of each steel plate piece clamps the keel member in a reserved clamping space, the keel member is fastened on the steel plate pieces through the bolt assemblies penetrating through preset holes, and therefore fine adjustment can be conducted on the keel member in the installation process, and the stability and fireproof performance of integral connection are guaranteed.
7. A steel structure outer wall according to claim 1, wherein the flanges of the keel member are provided locally with a cuttable part which can be cut or chamfered according to the installation requirements at the time of installation in the field to adapt to different installation positions and avoid space collisions or interference.
8. The steel structure outer wall according to claim 1, wherein the adjacent metal sandwich panels are provided with fireproof sealing plugs at lap joints or butt joints, the fireproof sealing plugs comprise flame-retardant cushion layers and sealing layers attached to edges of the plates, and the bonding surfaces of the fireproof sealing plugs corresponding to the keel members are filled with flame-retardant sealant or embedded with flame-retardant sealing strips for blocking permeation or spreading of flame or high-temperature smoke along the joints.
9. The steel structure exterior wall according to claim 1, wherein the metal sandwich panel comprises a core material and a metal surface layer meeting a predetermined fire resistance limit, and a fire protection coating is arranged at the connection interface of the metal sandwich panel and the keel member and at the contact area of the keel member and the main steel structure for improving the fire resistance of the connection part and blocking the transmission of flame or high temperature to the main steel structure.
10. The steel structure outer wall according to claim 1, wherein a ventilation cavity is formed between the outer side or the inner side of the metal sandwich panel and other protective layers, diversion holes or moisture discharge holes are respectively formed in the bottom and the top of the cavity, and flame-retardant sealing strips or flame-retardant sealing pieces are arranged at joints of components around the ventilation cavity and used for discharging moisture and preventing condensation water in the metal sandwich panel through air flow which is communicated up and down while meeting the fire-retardant requirement.

Description

Steel construction outer wall Technical Field The utility model belongs to the technical field of building structures, and particularly relates to a steel structure outer wall. Background The metal sandwich panel has been widely used in the fields of industrial factory buildings, public buildings, large-scale commercial complexes and the like in recent years because of the advantages of light weight, high strength, fire resistance, heat preservation, rapid construction and the like. The core structure of the heat insulation board is generally composed of an upper metal panel layer, a lower metal panel layer and a middle heat insulation core material layer, and can provide good wind resistance, heat insulation and appearance decoration effects in a conventional environment. However, the conventional metal sandwich panels on the market still have the defects in high temperature or fire environments that once the metal panel loses strength or deforms at high temperature, the heat insulation material in the panel can not be independently supported, so that the heat insulation material falls off or collapses, and the effective fire resistance and fire resistance effect are difficult to continuously play. In addition, when part of the construction engineering needs to overhaul or partially replace the already installed sandwich plate, as the sandwich plate and the keels or the adjacent plates are sequentially inserted and installed, once a certain plate is damaged, a large number of adjacent plates often have to be dismantled to finish maintenance, the replacement process is complex and time-consuming, and the damage to the original enclosure structure is also easy to cause. Therefore, how to improve the fire resistance limit and have convenient disassembly and assembly characteristics while keeping the advantages of light weight, easy installation and the like of the metal sandwich panel is still one of the problems to be solved urgently by the technicians in the field. In order to solve the above-mentioned difficulty in the prior art, an attempt is made to add a high temperature resistant fireproof layer in the metal sandwich panel to slow down the deformation speed of the panel in a fire scene, or to block the flame by adding a fireproof sealing strip between the sandwich panel and the keel. However, after the outer metal panel is melted or softened, most of core materials such as rock wool, glass wool and the like in the traditional plate still have the defect of loosening or being difficult to self-support, so that the whole fire-resistant partition effect of the plate is difficult to maintain. Meanwhile, in order to improve the structural safety coefficient, some projects adopt a tighter installation mode, so that panels are mutually overlapped or sheet metal is overlapped, but the situation that a single plate is damaged or the position needs to be adjusted, a plurality of adjacent plates are required to be removed in a joint way is often caused, and accordingly repeated construction is caused in the maintenance and disassembly links, and manpower and material resources are wasted. In summary, the solution of the metal sandwich panel with high fire resistance and rapid assembly or free disassembly is still deficient, and the comprehensive requirements of the modern building on fire prevention, maintenance, energy conservation and the like are difficult to meet. Disclosure of utility model The utility model aims to solve the defects and provides a steel structure outer wall. A steel structure exterior wall comprising: the main body steel structure is rigidly connected with at least one group of connecting pieces; The keel member comprises a plurality of transverse keels arranged in the horizontal direction at intervals and a plurality of vertical keels arranged in the vertical direction at intervals, and the keel member is fixedly connected with the main body steel structure through the connecting piece; The metal sandwich plate is positioned on one side, far away from the main body steel structure, of the keel member, and the metal sandwich plate is fixedly connected with the keel member through a fastener. The steel structure outer wall further comprises a lining plate and a decorative plate, wherein the lining plate is attached to one side, close to the main body steel structure, of the keel member and is fixedly connected with the keel member, the decorative plate covers the outer side of the lining plate and is fixed with the lining plate in a flexible connection mode, a certain gap is formed between the lining plate and the decorative plate, and the gap is used for providing dampproof, fireproof or sound insulation functions and meeting indoor and outdoor decoration requirements. Further, a closed cavity is formed by enclosing the metal sandwich plate, the keel member and the inner lining plate, a fireproof heat-insulating material is filled in the cavity, and fireproof sealant is coated on the plate