CN208056416U - A kind of netted raw bamboo skeleton-lightweight aggregate concrete plate - Google Patents

Abstract

A kind of netted raw bamboo skeleton-lightweight aggregate concrete plate, including longitudinal primary bamboo wood (1), laterally primary bamboo wood (2), lightweight aggregate concrete (3) collectively constitutes, it is characterized in that, two or more isometric longitudinal direction primary bamboo wood (1) spaced and parallel arrangements for including natural ring (4), two or more lateral primary bamboo woods (2) closely intersect at the spaced and parallel arrangement of longitudinal primary bamboo wood (1) across through hole (11), longitudinal primary bamboo wood (1) combines to form netted raw bamboo skeleton (100) with laterally primary bamboo wood (2) interconnection, lightweight aggregate concrete (3) wraps up netted raw bamboo skeleton (100) and forms composite floor.The utility model overcomes the deficiency of ordinary reinforced concrete floor, and netted raw bamboo skeleton is filled in inside lightweight aggregate concrete, forms actual hollow section, effectively reduces lightweight aggregate concrete dosage, and raw bamboo skeleton also improves the bearing capacity of structure.

Description

A reticulated original bamboo skeleton-lightweight aggregate concrete slab

technical field

The utility model relates to a combined floor slab, in particular to a reticular raw bamboo skeleton-light aggregate concrete slab, which belongs to the technical field of civil engineering structures.

Background technique

Reinforced concrete floors are widely used in various buildings due to their high strength and high rigidity. According to the construction method, reinforced concrete floors can be divided into two types: cast-in-place reinforced concrete floors and prefabricated reinforced concrete floors. method, this floor structure needs to consume a large amount of steel, which not only leads to heavy structure, but also high engineering cost, and it does not meet the low-carbon and environmental protection construction requirements that our country is pursuing today. Bamboo, as a new type of green environmental protection material, has been greatly welcomed by the construction industry in recent years. Bamboo is the fastest growing plant in the world. Rich in resources, it can fully meet the material demand of the fast-growing construction industry. In addition, bamboo has excellent mechanical properties, especially its tensile properties. The tensile strength of some varieties of bamboo is similar to that of wood or even steel, but the weight is much lighter than them. It can be said that bamboo has become a very excellent building. One of the materials.

In addition, the extensive application of concrete consumes a lot of natural aggregates. The annual concrete consumption in our country is about 1 billion m ³ . The massive mining of sand and stones leads to the destruction of cultivated land and the destruction of forests. The use of industrial waste such as fly ash, cinder, coal gangue, etc. to prepare lightweight aggregate concrete not only alleviates the problem of land resource damage caused by sand and gravel mining, but also has low density, high strength, thermal insulation, and earthquake resistance. Excellent, it has great advantages in reducing the self-weight of the structure, and can be widely used in walls, floors and other components.

In response to the above problems, new types of floor slabs have been continuously developed and utilized in an effort to overcome the shortcomings of concrete floors. For example, Chinese patent No. "201010224793.7" discloses a "manufacturing method of low-carbon bamboo-wood foamed concrete building floor". Connect them with iron bolts to make bamboo rafts, place them in the formwork, pour foam concrete, and form low-carbon bamboo-wood lightweight aggregate concrete building floors after natural air-drying or heating and curing. Although this invention proposes a floor structure combining bamboo and foamed concrete, another high-quality energy-saving material, the bamboo in this structure is connected by iron bolts. Iron bolts are iron products and are also a type of high energy consumption. Building materials, in essence, go against the original intention of low-carbon environmental protection, and a small amount of bamboo slats have very limited effect on improving the performance of concrete floors.

The utility model provides a reticular original bamboo skeleton-light aggregate concrete slab to overcome the defects in the prior art and meet the needs of practical engineering.

Contents of the invention

The purpose of this utility model is to provide a reticulated original bamboo skeleton-light aggregate concrete slab, in order to solve the major defects of the existing reinforced concrete floor slabs, introduce a hollow inside the section, reduce the amount of concrete, lighten the weight, and improve the bearing capacity and Anti-seismic performance. At the same time, the composite floor slab makes full use of my country's abundant bamboo resources, is green, environmentally friendly and low-carbon, and can promote the development of my country's bamboo industry to a certain extent. In addition, the composite floor slab is made of lightweight aggregate concrete, a new energy-saving and environmentally friendly material, which is lightweight, high-strength, and thermally insulated.

For this reason, the utility model provides a kind of reticular original bamboo skeleton-light aggregate concrete slab, comprises vertical original bamboo material, horizontal original bamboo material, light aggregate concrete are jointly formed, it is characterized in that, more than two slabs containing natural bamboo joints Longitudinal native bamboos of equal length are arranged in parallel at intervals, and more than two through-holes are evenly opened along the longitudinal axis of the longitudinal native bamboos. The inner wall of the hole is closely attached, the diameter of the through hole is the same as the cross-sectional diameter of the horizontal raw bamboo, which is less than or equal to the cross-sectional diameter of the vertical raw bamboo 10mm or more, the vertical raw bamboo and the horizontal raw bamboo are cross-connected and combined to form a mesh raw bamboo skeleton, lightweight aggregate concrete Wrapping the reticulated original bamboo skeleton to form a composite floor, the sum of the cross-sectional areas of the longitudinal original bamboo materials is greater than or equal to 20% of the overall cross-sectional area of the composite floor, and the cross-sectional central axis of the reticulated raw bamboo skeleton is located at or below the midline of the composite floor’s overall section.

In the utility model, the cross-connection and combination of the vertical primary bamboo and the horizontal primary bamboo forms a mesh-shaped primary bamboo skeleton and fills the interior of the lightweight aggregate concrete, and the interior of the section is introduced into a hollow, which effectively reduces the amount of lightweight aggregate concrete. At the same time, the vertical primary bamboo is Composite slabs provide flexural resistance, increasing their load-carrying capacity. The central axis of the cross-section of the reticulated raw bamboo skeleton is located at or below the midline of the overall cross-section of the composite floor, so that the reticulated raw bamboo skeleton can more effectively bear the lower tensile stress generated by the bending load.

The lengths of the vertical primary bamboos are equal and contain natural bamboo joints. The number of vertical primary bamboos is not limited, and the distance between adjacent centers is greater than or equal to 100 mm to meet the needs of pouring and filling lightweight concrete.

The horizontal primary bamboo and the through hole intersect vertically through the central axis of the longitudinal primary bamboo, and the central axis of the horizontal primary bamboo and the central axis of the longitudinal primary bamboo are located on the same plane.

The cross-sectional diameter of the horizontal raw bamboo is the same as the diameter of the through hole, and it passes through the through hole closely to realize the cross connection with the vertical raw bamboo, and then combine to form a meshed raw bamboo skeleton, and the lightweight aggregate concrete is poured after passing through the meshed raw bamboo skeleton.

The lightweight aggregate concrete is prepared by using porous lightweight aggregate or artificial ceramsite as coarse aggregate, natural sand or light sand as fine aggregate, and cement, water and admixtures according to the mixing ratio. Greater than 1950kg/m ³ .

The utility model overcomes the defects of the known reinforced concrete floor slabs, such as heavy weight and large amount of materials, reduces the amount of concrete, lightens the weight, has a large bearing capacity, and has good seismic performance. Good benefits. The specific beneficial effects are as follows:

(1) The utility model is a composite floor slab composed of raw bamboo and lightweight aggregate concrete. The original bamboo is arranged vertically and horizontally to form a reticulated original bamboo skeleton. The reticulated original bamboo skeleton bears the tensile stress caused by the bending load and is light. The aggregate concrete bears the compressive stress caused by the bending load, and the original bamboo and lightweight aggregate concrete play their respective advantages, so that the structure meets the bearing capacity requirements.

(2) The reticular raw bamboo skeleton is filled inside the lightweight aggregate concrete to form a de facto hollow section, which effectively reduces the amount of lightweight aggregate concrete, and the introduction of the hollow section does not require additional molds, the construction process is simple, and the overall cost is low.

(3) Compared with the reinforced concrete floor slab, the primary bamboo in the utility model replaces the steel bar, which has the characteristics of light weight, high strength, and environmental protection, and overcomes the self-heavy and high-cost defects of the reinforced concrete floor slab.

(4) The utility model uses lightweight aggregate concrete to pour the floor slab. While ensuring the compressive strength, the lightweight aggregate concrete has excellent properties such as light weight, large porosity, low density, light weight, thermal insulation, and good seismic performance. , The introduction of the hollow inside the cross-section makes the thermal insulation performance and sound insulation performance effectively improved, especially suitable for building floors in earthquake-prone areas.

Description of drawings:

Fig. 1 is a kind of reticular original bamboo skeleton-light aggregate concrete slab perspective schematic diagram;

Fig. 2 is a schematic plan view of a reticulated original bamboo skeleton-light aggregate concrete slab;

Fig. 3 is the A-A sectional schematic diagram of a kind of reticulated original bamboo skeleton-light aggregate concrete slab;

Fig. 4 is the B-B sectional schematic diagram of a kind of reticulated original bamboo skeleton-light aggregate concrete slab;

In accompanying drawing 1～accompanying drawing 4, 1 is vertical original bamboo material, 2 is horizontal original bamboo material, 3 is lightweight aggregate concrete, 4 is natural bamboo joint, 11 is through-hole, 100 is reticular original bamboo skeleton.

Detailed ways:

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings.

As shown in Figures 1 to 4, the utility model provides a reticulated original bamboo skeleton-light aggregate concrete slab, which comprises a vertical original bamboo 1, a horizontal original bamboo 2, and a lightweight aggregate concrete 3. It is characterized in that, Two or more equal-length vertical primary bamboos 1 containing natural bamboo joints 4 are arranged in parallel at intervals, two or more through holes 11 are evenly opened along the longitudinal axis of the longitudinal primary bamboos 1, and more than two horizontal primary bamboos 2 closely pass through the through holes 11 and intersect Arranged parallel to the vertical primary bamboo 1 at intervals, the outer wall of the horizontal primary bamboo 2 is closely attached to the inner wall of the through hole 11, the diameter of the through hole 11 is the same as the cross-sectional diameter of the horizontal primary bamboo 2, which is less than or equal to 10mm or more in the cross-sectional diameter of the vertical primary bamboo 1, The vertical original bamboo 1 and the horizontal original bamboo 2 are cross-connected and combined to form a reticulated original bamboo skeleton 100, and the lightweight aggregate concrete 3 wraps the reticulated original bamboo skeleton 100 to form a composite floor. More than 20%, the central axis of the cross-section of the reticulated original bamboo skeleton 100 is located at or below the central line of the overall cross-section of the combined floor slab.

In the utility model, the vertical raw bamboo 1 and the horizontal raw bamboo 2 are cross-connected and combined to form a mesh-like raw bamboo skeleton 100 filled inside the lightweight aggregate concrete 3, and the inside of the section is introduced into the hollow, effectively reducing the amount of the lightweight aggregate concrete 3, and at the same time , the longitudinal raw bamboo 1 provides the composite floor with bending resistance and improves its load bearing capacity. The central axis of the cross-section of the reticulated raw bamboo skeleton 100 is located at or below the midline of the overall cross-section of the composite floor, so that the reticulated raw bamboo skeleton 100 can more effectively bear the lower tensile stress generated by the bending load.

The lengths of the vertical raw bamboo materials 1 are equal and contain natural bamboo joints 4. The number of vertical raw bamboo materials 1 is not limited, and the distance between adjacent centers is greater than or equal to 100mm.

The horizontal primary bamboo 2 and the through hole 11 intersect vertically through the central axis of the longitudinal primary bamboo 1, and the central axis of the horizontal primary bamboo 2 and the central axis of the longitudinal primary bamboo 1 are located on the same plane.

The cross-sectional diameter of the transverse raw bamboo 2 is the same as that of the through hole 11, and it passes through the through hole 11 tightly to realize cross-connection with the vertical raw bamboo 1, and then combined to form a meshed raw bamboo skeleton 100. After the light aggregate concrete 3 passes through Pouring and wrapping netted original bamboo skeleton 100.

The lightweight aggregate concrete 3 is made of porous lightweight aggregate or artificial ceramsite as coarse aggregate, natural sand or light sand as fine aggregate, and is prepared according to the mixing ratio with cement, water and admixture, and its apparent density Not more than 1950kg/m ³ .

Claims (5)

1. a kind of netted raw bamboo skeleton-lightweight aggregate concrete plate, including longitudinal primary bamboo wood (1), lateral primary bamboo wood (2), light Aggregate concrete (3) collectively constitutes, which is characterized in that two or more the primary bamboo woods in isometric longitudinal direction (1) for including natural ring (4) Spaced and parallel arrangement, longitudinal primary bamboo wood (1) longitudinally uniformly open up more than two through holes (11), and two or more laterally former Raw bamboo wood (2) closely intersects at the spaced and parallel arrangement of longitudinal primary bamboo wood (1) across through hole (11), laterally primary bamboo wood (2) The inner wall of outer wall and through hole (11) fit closely, through hole (11) diameter is identical as laterally primary bamboo wood (2) diameter of section, It is less than or equal to longitudinal primary bamboo wood (1) diameter of section 10mm or more, and longitudinal primary bamboo wood (1) is handed over laterally primary bamboo wood (2) Fork connection combination forms netted raw bamboo skeleton (100), and lightweight aggregate concrete (3) wraps up netted raw bamboo skeleton (100) and forms combination Floor, longitudinal primary bamboo wood (1) area of section summation are more than or equal to 20% or more composite floor global sections area, netted raw bamboo The section central axes of skeleton (100) are located at below composite floor global sections center line or center line.

2. a kind of netted raw bamboo skeleton-lightweight aggregate concrete plate according to claim 1, it is characterised in that longitudinal primary bamboo The equal length of material (1) includes natural ring (4), and the quantity of longitudinal primary bamboo wood (1) is unrestricted, and adjacent center spacing is big In equal to 100mm.

3. a kind of netted raw bamboo skeleton-lightweight aggregate concrete plate according to claim 1, it is characterised in that laterally primary bamboo Material (2) and through hole (11) intersecting vertical are through the axis line position of longitudinal primary bamboo wood (1), laterally in primary bamboo wood (2) Axis is located at same level with longitudinal primary bamboo wood (1) central axes.

4. a kind of netted raw bamboo skeleton-lightweight aggregate concrete plate according to claim 1, it is characterised in that laterally primary bamboo Material (2) diameter of section is identical as through hole (11) diameter, closely passes through through hole (11), realizes and longitudinal primary bamboo wood (1) Interconnection, and then combine and form netted raw bamboo skeleton (100), lightweight aggregate concrete (3) wraps up netted raw bamboo by after-pouring Skeleton (100).

5. a kind of netted raw bamboo skeleton-lightweight aggregate concrete plate according to claim 1, it is characterised in that lightweight aggregate coagulation The apparent density of native (3) is not more than 1950kg/m³。