CN101270595A - Prefabricated honeycomb panel light hollow building and roof structure system - Google Patents

Abstract

The prefabricated honeycomb panel light-weight hollow building and roof structure system relates to a light-weight building (roof) structure system in the field of civil engineering, which can be widely used in large-space floors or large-span buildings in multi-story and high-rise buildings. structure. The self-weight of the structure is greatly reduced, and it can realize factory-based, serialized and mass-produced, and on-site assembly construction, which can effectively reduce the height of the structure, save indoor headroom, and generate good comprehensive economic and social benefits. The system consists of metal The base plate (1), top plate (2), transverse side plate (3), longitudinal side plate (4) and socket connector (5) composed of honeycomb panels are assembled; the transverse side plate (3), longitudinal side plate (4) Intersect with each other and be located between the bottom plate (1) and the top plate (2). On the bottom plate (1) and the top plate (2), connect the lateral side plates (3), Longitudinal side panels (4).

Description

Prefabricated honeycomb panel light hollow building and roof structure system

technical field

The invention relates to a light-weight building (roof) roof structure system in the field of civil engineering, which can be widely used in large-space floors in multi- and high-rise buildings or roof structures in large-span buildings. The self-weight of the structure is greatly reduced, and it can be mass-produced in a factory, serialized and finalized. On-site assembly construction can effectively reduce the height of the structure, save indoor headroom, and generate good comprehensive economic and social benefits.

Background technique

With the sustained and rapid development of the national economy and the continuous improvement of people's quality of life, the space structure has been favored by more and more architects and structural engineers. Various buildings with large space requirements can be seen everywhere, such as large supermarkets, shopping malls, stadiums and exhibitions, entertainment centers, etc., with an area ranging from a few thousand square meters to tens of thousands or even hundreds of thousands of square meters. Or the roof adopts a large column network (or even no central column only peripheral support), large space, if the ordinary reinforced concrete beam-slab system is still used in the design, it will inevitably form a heavy building (house) cover with "fat beams and fat columns". Sometimes it is even impossible to meet the spanning requirements of large spans. At present, the more common solutions to the above-mentioned large-space building (roof) cover generally adopt space structure forms such as steel grids and composite grids, and their structural performance and use effect are obviously better than traditional reinforced concrete beam-slab systems, but relatively speaking The self-weight of these structures is still not light enough, and the high structural height of the rod system will affect the building headroom in some occasions.

As we all know, the "honeycomb" structure built by bees, the skilled craftsman in nature, is a "spatial structure" with a very reasonable structure. The metal honeycomb sandwich panel made of upper and lower thin metal panels and the middle ultra-thin aluminum honeycomb core has the advantages of light weight (about 6-8kg/m ² ), high rigidity, sound insulation, heat insulation, fire resistance, etc. With many advantages and mature production technology, it can be said that it is a typical representative of high-performance plates, so it is widely used in aviation, high-speed trains, ships and other fields. In recent years, it has also been widely used in the roofs and walls of some medium and high-end public buildings, such as: the single-curved roof of Shanghai Automobile Exhibition Center (20700m ² ), the double-curved aluminum honeycomb panel roof of Chengdu Shahe Monitoring and Command Center (8000m ² ), Zhejiang University multi-function hall spherical aluminum honeycomb exterior wall panels and other projects. Perhaps because the price of metal honeycomb panels is relatively high, they are rarely used in large quantities as structural panels in the field of civil engineering. However, according to our specific analysis and calculation, the comprehensive economic benefits of the system brought by its excellent mechanical properties and ultra-light weight have far made up for the shortcomings of its high unit price, and are even more economical than other similar structural forms. At the same time, it is different from the flexible "membrane" material that also has the characteristics of "light weight and high strength". It can be subjected to both tension and compression, and has a wider range of applications. For this reason, the present invention uses this high-performance honeycomb panel to form a new type of fasting and large-space combined building (roof) cover system through a specific connection method. After preliminary analysis and research, the structural system has light weight, high rigidity, good seismic performance, convenient and feasible construction, and a high degree of factory serial production.

Contents of the invention

Technical problem: In order to overcome the shortcomings of the existing traditional building (roof) roof structure, the present invention provides a new type of large-space compound building ( roof) roof structure system. Macroscopically, its interior is full of lattice-shaped cavities, which is equivalent to an energy-saving "big honeycomb panel" with light weight, high rigidity, sound insulation and heat insulation.

Technical solution: The assembled honeycomb panel light-weight fasting building and roof structure system of the present invention include bottom panels, top panels, lateral side panels, longitudinal side panels and socket connectors assembled from metal honeycomb panels; horizontal side panels, The longitudinal side plates are intersected with each other and are located between the bottom plate and the top plate. The bottom plate and the top plate are connected to the transverse side plates and the longitudinal side plates through socket connectors. Connection slots are provided in the connecting plate seams between the bottom plate, top plate, lateral side plates and longitudinal side plates, and a certain prestress is applied to the surface of the bottom plate under tension to further improve its structural integrity. When it is applied to the roof structure, the waterproof sealing bead is filled in the seam of the splicing board of the roof.

Beneficial effect: compared with the prior art, the present invention has the following advantages:

Since this structural system uses metal honeycomb panels, which are recognized as having very high specific strength and specific stiffness (that is, strength and stiffness per unit weight), its structural performance is much superior to that of traditional structural systems. ,mainly reflects in:

(1) The structure is light in weight and the overall cost is low.

Since the main component of the structure is the light board, the weight is only 6-8kg/m ² , so the weight of the formed structure is about 20-40kg/m ² , which is about 1/2 of the weight of traditional steel structures such as general grids. When it is applied to the floor, it is about 1/5 of the ordinary reinforced concrete floor. According to specific calculations, although the price of a single honeycomb panel is relatively high, the comprehensive cost of the building after considering the self-weight effect is not high, and can generally be reduced by 5-10%.

(2) The overall rigidity is large and the anti-seismic performance is good.

Since the structure is a slab system, its overall rigidity, seismic performance and overall stability are superior to traditional structures.

(3) It integrates load bearing, enclosure, decoration and energy saving.

The bottom plate in this system is not only a load-bearing structure, but also serves as an indoor ceiling decoration board, which can be pre-treated before installation without secondary decoration; while the top plate is not only a load-bearing and enclosure board, but also can be partially (or partially) as required by the owner. All) areas are equipped with solar thermal collectors.

(4) Good building physical properties.

First of all, because the honeycomb panel itself has the advantages of sound insulation, heat insulation, and fire resistance, and secondly, because from a macro perspective, the entire building (house) structure is a "big honeycomb panel" filled with a lattice-shaped air layer, so its sound insulation, insulation Thermal and other physical properties are bound to be better.

(5) The structure height is small, saving the building headroom.

Through finite element comparative analysis, under the same design load, the structural height of this structural system (completely composed of slab systems) with the same span is 20-30% lower than the floor structure height of the composite grid structure and other bar system structures (stiffness index same). The headroom of the building is effectively improved, so that when the total height of the building remains unchanged, the number of building floors can be increased, the usable area can be expanded, and additional economic benefits can be brought.

Description of drawings

Fig. 1 is the schematic diagram when the present invention is used in floor structure;

Fig. 2 is the schematic diagram when the present invention is used for large-span roof structure;

Fig. 3 is the schematic diagram when the present invention is used in portal frame;

Fig. 4 is a schematic diagram of the connection structure of this structural system.

In the figure, there are: bottom plate 1, top plate 2, transverse side plate 3, longitudinal side plate 4, socket connector 5, connection card slot 6, waterproof sealing bead 7.

Detailed ways

The high-performance metal honeycomb panels with a thickness of 20-30mm and a plane size of about 1 ^m × 1 ^m and 1 ^m × 0.5 ^m are made into the bottom plate 1, the top plate 2, the transverse side plate 3, the longitudinal side plate 4, and the transverse side plate 3 1. Longitudinal side plates 4 intersect each other and are positioned between base plate 1 and top plate 2. On base plate 1 and top plate 2, transverse side plates 3 and longitudinal side plates 4 are connected by socket connectors 5 (universal parts). A connecting slot 6 (universal part) is provided in the connecting plate seam between the bottom plate 1, the top plate 2, the transverse side plate 3, and the longitudinal side plate 4, and a certain prestress is applied in the surface of the bottom plate under tension to further improve its structural integrity.

When it is applied to the roof structure, the waterproof sealing bead 7 is filled in the seam of the top plate 2 .

The metal honeycomb panels (with metal frame) and special connectors are mass-produced in a professional designated factory, and then transported to the site, and according to the site conditions, they are used in high-altitude bulk or assembled into several units on the ground first and then hoisted to the high-altitude Install in place.

Necessary scaffolding and temporary support should be set up during assembly. When a single structure is formed, it can be used as a support for the subsequent parts. The sliding installation method is used to gradually advance forward, and no more scaffolding is needed.

Claims (3)

1. a kind of prefabricated honeycomb board light fasting building, roof structure system, it is characterized in that this system comprises base plate (1), roof board (2), lateral side board (3), longitudinal side board ( 4) and socket connectors (5) are assembled; the transverse side panels (3) and longitudinal side panels (4) are intersected with each other, and are located between the bottom panel (1) and the top panel (2). ) and the top plate (2), the transverse side plate (3) and the longitudinal side plate (4) are connected by socket connectors (5). 2. The prefabricated honeycomb panel light-weight fasting building and roof structure system according to claim 1, characterized in that between the bottom plate (1), the top plate (2), the transverse side plate (3), and the longitudinal side plate (4) A connecting card slot (6) is provided in the joint of the connecting plate, and a certain prestress is applied in the surface of the bottom plate under tension, so as to further improve its structural integrity. 3. assembled honeycomb panel light-duty fasting building, roof structure system according to claim 1, it is characterized in that when being applied to roof structure, in the splicing board seam of top plate (2), fill waterproof seal bead ( 7).

Images