CN106836672A - A kind of assembled ecotype RPC combined staircase - Google Patents

Abstract

A kind of assembled ecotype RPC combined staircase, including base plate and box marking time of being placed on base plate, the box top marked time is unenclosed construction, its bottom is provided with horizontal draw-in groove, it is respectively provided on two sides with bolt hole, the base plate is being provided with matched trip with draw-in groove corresponding position, box to mark time by trip, draw-in groove and bolt connection on base plate；The box interior plant raw-soil filled with planting plants of marking time, the box top marked time is provided with safety glass cover plate, the length of safety glass cover plate is less than the box length marked time, and safety glass cover plate is placed in box crown center position of marking time, safety glass cover plate both sides is left plant growth space.The present invention has the advantages that high-strength, light weight, convenient transport and installation, ecological, environmental protective, has to human settlement and is obviously improved effect.

Description

A prefabricated ecological active powder concrete composite staircase

technical field

The invention relates to an assembled composite staircase, in particular to an assembled ecological active powder concrete composite staircase.

Background technique

The country advocates prefabricated buildings, and the economic benefits of cast-in-place stairs are low, consuming manpower, financial resources, time, and uneconomical. The prefabricated stairs are made in the factory, with the characteristics of product specifications and excellent quality, while reducing manpower and time. However, the existing prefabricated staircase has a single structure and cannot meet the requirements of various scenarios. Moreover, it has a large self-weight and is difficult to hoist, which increases the difficulty of construction and the investment of manpower and material resources. The combined prefabricated ecological staircase has light weight and can be divided into bottom plate and stair box step, which greatly reduces the weight, and uses RPC material. Because the material is added with fiber material, its strength is strengthened while the weight is reduced, which can reduce the weight. The difficulty of construction speeds up the construction process and greatly reduces manpower time. In addition, the prefabricated ecological staircase has three combinations, which has the characteristics of free combination, and basically meets the requirements of various scenarios. The assembled ecological staircase can plant plants, has the function of greening, and can improve the ecological environment.

The publication date is December 30, 2009, and the publication number is CN 101614059 A. The Chinese patent document provides a step-height adjustable modularized combination staircase. Composed of box steps. It has the characteristics of better mobility and storage. The conversion of stairs into storage boxes requires artificial conversion, which is not only low in practicality, but also cumbersome to operate.

The publication date is December 02, 2015, and the publication number is CN 105113723 A. A Chinese patent document discloses a prefabricated combined staircase, which uses prefabricated step bodies to be extruded by their own weight so that the step bodies are confined to the step groove body parts. In the groove, the assembly is very convenient, the cost is low, and at the same time, the strength requirement for the step body is low, and it can be directly made of light materials, which reduces the weight of the stairs. The prefabricated stairs are connected by card slots, and the steps are made of lightweight materials, which have poor seismic performance.

The publication date is January 21, 2015, and the publication number is CN 104295095 A. In the Chinese patent document, a steel-wood composite staircase formwork is disclosed, which is combined by steel and wood, which solves the support of the staircase formwork and is difficult to reinforce. The formwork, steel The use of nails and other materials is large and cannot be reused, which improves the utilization rate of materials, simplifies the formwork installation and reinforcement process, improves construction efficiency, and saves more than 60% of labor. However, the amount of wood used is large, which is not economical and environmentally friendly.

The publication date is March 12, 2014, and the publication number is CN 103628640 A. The Chinese patent document discloses a staircase formwork, a composite staircase formwork and a combined staircase, which are composed of a container frame and a staircase arranged in the container frame. The staircase can be used in a temporary building, so that the construction efficiency of the temporary building can be improved, the cost can be reduced, and the stair can be easily disassembled, transported, and recycled. Because it can only be used temporarily and cannot be applied to permanent buildings, it has relatively large limitations.

The publication date is January 01, 2014, and the publication number is CN 103485530 B. In the Chinese patent literature, a steel formwork specially used for combined stairs of high-rise buildings is disclosed. Through the assembly of multiple parts, it can be reshaped to avoid the The deformation of the concrete is used to ensure the quality of the stairs, and the assembly is simple and saves manpower and material resources. The design is complicated and the installation is inconvenient.

Contents of the invention

The purpose of the present invention is to develop a kind of prefabricated ecological type active powder concrete combination staircase aiming at the shortcomings of the existing common concrete staircase.

The purpose of the present invention is achieved through the following technical solutions: a prefabricated ecological active powder concrete composite staircase, characterized in that it includes a base plate and a box-type step placed on the base plate, and the top of the box-type step is an open structure , the bottom is provided with a horizontal card slot, and its two sides are respectively provided with bolt holes, the bottom plate is provided with a matching tenon at the position corresponding to the card slot, and the box-type step is connected by a tenon, a card slot and bolts on the bottom plate; the box-type step is filled with planting soil for planting plants, the top of the box-type step is provided with a tempered glass cover plate, the length of the tempered glass cover plate is less than the length of the box-type step, and the tempered glass cover plate is placed in the box In the middle of the top of the stepped step, there is a space for plants to grow on both sides of the tempered glass cover.

The left and right sides of the box-type step are respectively provided with ramp plates, and the ramp plates are also placed on the bottom plate; bolt holes are provided on both sides of the ramp plate, and a horizontal slot is provided at the bottom, and the bottom plate corresponds to the slot. A matching tenon is provided at the position, and the ramp plate is connected to the bottom plate through the tenon, the slot and the bolt.

The upper surface of the ramp plate is provided with anti-slip stripes.

Railings are provided, railing holes are respectively provided on the left and right sides of the box-type steps, and railings are installed at the railing holes.

The top end surface of the box-type step is provided with a cover plate groove, and the end of the toughened glass cover plate is embedded in the cover plate groove.

The base plate, the ramp plate and the box-type steps are all prefabricated by active powder concrete.

The active powder concrete raw materials include cement, sand, silica fume, superfine admixture, steel fiber, water reducing agent, and water; each material is composed of cement: sand: silica fume: superfine admixture: steel fiber: superplasticizer Water agent: water = 0.7～0.6: 1.0～1.2: 0.1～0.15: 0.3～0.4: 0.16～0.32: 0.35～0.5: 0.15～0.22, the compressive strength of the prepared active powder concrete is 130MPa～150MPa, and the flexural strength is 20MPa ~30MPa.

The cement is Portland cement with a strength not lower than 42.5; the sand is washed river sand or quartz sand with a maximum particle size not greater than 2.5mm; the superfine admixture is 1000m ² /kg ground slag powder or pulverized coal Ash; steel fibers are high-strength steel fibers or copper-plated steel fibers with an aspect ratio of 50-70; tap water or unpolluted groundwater.

The preparation method of the active powder concrete is as follows: put cement, sand, silica fume, ultra-fine admixture, and steel fiber into a concrete mixer in sequence, and stir for 1 minute; mix water and water reducing agent, pour into the mixer, and stir for 1 minute to prepare Get active powder concrete;

The active powder concrete prepared by mixing is poured into the base plate mold, box-type staircase mold, and ramp mold respectively. After vibration molding, it is left to stand for 1 day. After demoulding, it is sprayed with water outdoors for 28 days or steamed for 24 hours above 90°C. The preparation is complete.

The planting soil is composed of soil, ceramsite, flower seeds, and slow-release chemical fertilizer; the ceramsite is one of clay ceramsite, fly ash ceramsite, and sludge ceramsite; the flower seeds are carnation, cosmos, and butterfly One or more of flowers, fragrant violets, carnations, poppies, lilies, jasmine, mosquito repellent, and morning glory.

The tenons, slots, anti-skid stripes, bolt holes and railing holes are all made by designing molds.

The present invention has novel structure, various functions, high strength, small dead weight, convenient transportation and hoisting, and the beneficial effects of the present invention are as follows:

(1) The base plate, ramp plate and box steps are all made of reactive powder concrete. The concrete is a super-high-strength and super-tough material, which can greatly reduce the weight of the components and facilitate transportation and hoisting on the premise that the mechanical properties of the stairs meet the requirements of use. ;

(2) Bolts are used to connect and fix the bottom plate with ramps and box steps, and the box steps and ramps can be replaced and reassembled at any time during use;

(3) The step is designed as a box type, which further reduces the weight of the components, and can plant flowers and plants in the step, which is green and ecological, and greatly improves the living environment.

Description of drawings

Fig. 1 is a schematic diagram of the facade of a box-type step staircase of the present invention;

Fig. 2 is the A-A sectional schematic diagram of Fig. 1;

Fig. 3 is a schematic diagram of the elevation of the bottom plate of the present invention;

Fig. 4 is a schematic diagram of the facade of a box-type step of the present invention;

Fig. 5 is a schematic diagram of the elevation of the ramp of the present invention;

Fig. 6 is a schematic diagram of the combination elevation of the ramp box type steps of the present invention;

Fig. 7 is a top view schematic diagram of the ramp combination staircase of the present invention;

Fig. 8 is a schematic top view of a box-type stepping ramp combined with a staircase of the present invention;

In the figure: 1 tenon, 2 bolts, 3 railing holes, 4 plants, 5 tempered glass cover, 6 bottom plate, 7 cover groove, 8 ramp plate, 9 bolt hole, 10 card slot.

detailed description

Example 1

Put cement, sand, silica fume, ultra-fine admixture, and steel fiber into the concrete mixer in turn, and mix for 1 minute. Mix water and water reducer and pour into the mixer, and mix for 1 minute. Then inject the active powder concrete prepared by mixing into the bottom plate. Molds, box-type staircase molds, ramp molds, after vibration molding, let stand for 1 day, after demolding, outdoor watering and wet curing for 28 days or steam curing above 90°C for 24 hours, the preparation is complete. Tenons, slots, anti-slip stripes, bolt holes, and railing holes are all made by designing molds.

The top of the box-type step is an open structure, the bottom is provided with a transverse slot 10, and its two sides are respectively provided with bolt holes 9, and the bottom plate is provided with a matching tenon 1 at a position corresponding to the slot.

The top of the box-type step is provided with a tempered glass cover plate 5, the length of the tempered glass cover plate is less than the length of the box-type step, and the tempered glass cover plate is placed in the middle of the top of the box-type step, so that plants grow on both sides of the tempered glass cover plate. void.

Fasten the box-type step card slot 10 on the tenon 1 of the bottom plate 6, the bolt 2 penetrates into the bolt hole 9, and tighten it with a wrench. After each box-type step is fixed in turn, a box-type step staircase is obtained. After the stairs are hoisted to the construction site, the planting soil is filled into the box-type steps, watered, and the tempered glass cover plate 5 is installed on the cover plate groove 7.

Example 2

Each component was prepared according to the method in Example 1.

There are ramp plates 8 on the left and right sides of the box-type step, and the ramp plates are also placed on the bottom plate; bolt holes are provided on both sides of the ramp plate, and a horizontal slot is provided at the bottom, and the bottom plate is at the corresponding position of the slot. There is a matching tenon at the place, and there are anti-skid stripes on the surface of the ramp board.

Fasten the slot 10 of the ramp plate 8 to the tenon 1 of the bottom plate 6, and tighten it with a wrench. After each ramp plate 8 is fixed in turn, the ramp stairs are obtained, and the ramp stairs are hoisted to the construction site for installation.

Example 3

Each member was prepared according to the method in Example 1.

Closely buckle the box-type step card groove 10 on the tenon 1 of the bottom plate 6, and insert the bolt 2 into the bolt hole 9, and tighten it with a wrench to fix it. Closely buckle the slot 10 of the ramp plate 8 on the tenon 1 of the bottom plate 6, and tighten it with a wrench. After each box-type step and ramp plate 8 are fixed in sequence, the box-type step ramp is obtained in conjunction with the stairs, and the box-type step ramp is hoisted to the construction site and installed in combination with the stairs.

The invention has the advantages of high strength, light weight, convenient transportation and installation, ecological environmental protection, etc., and has a significant effect on improving the living environment.

Claims (10)

1. a kind of assembled ecotype RPC combined staircase, it is characterized in that, including base plate（6）And it is placed in base plate On it is box mark time, the box top marked time be unenclosed construction, its bottom is provided with horizontal draw-in groove（10）, its both sides sets respectively There is bolt hole（9）, the base plate is being provided with matched trip with draw-in groove corresponding position（1）, it is box to mark time by card Tenon, draw-in groove and bolt connection are on base plate；The box interior plant raw-soil filled with planting plants, the box top marked time of marking time Portion is provided with safety glass cover plate（5）, less than the box length marked time, safety glass cover plate is placed in case to the length of safety glass cover plate Formula is marked time crown center position, safety glass cover plate both sides is left plant growth space.

2. a kind of assembled ecotype RPC combined staircase according to claim 1, it is characterized in that, it is described Box arranged on left and right sides of marking time is respectively equipped with ramp plate（8）, ramp plate is equally placed on base plate；Ramp plate both sides are provided with bolt hole, Its bottom is provided with horizontal draw-in groove, base plate being provided with matched trip with draw-in groove corresponding position, ramp plate by trip, Draw-in groove and bolt connection are on base plate.

3. a kind of assembled ecotype RPC combined staircase according to claim 2, it is characterized in that, it is described Ramp plate upper surface is provided with skid resistance strip.

4. a kind of assembled ecotype RPC combined staircase according to claim 1, it is characterized in that, it is provided with Railing, the box arranged on left and right sides of marking time is respectively equipped with railing hole（3）, railing is installed at the railing hole.

5. a kind of assembled ecotype RPC combined staircase according to claim 1, it is characterized in that, it is described The box top end face marked time is provided with slot cover（7）, the end of safety glass cover plate is embedded in the slot cover.

6. a kind of assembled ecotype RPC combined staircase according to claim 2, it is characterized in that, it is described Base plate, ramp plate, box marking time obtain by RPC is prefabricated.

7. a kind of assembled ecotype RPC combined staircase according to claim 6, it is characterized in that, it is described RPC raw material include cement, sand, silicon ash, ultra-fine admixture, steel fibre, water reducer, water；Each material is constituted Cement：Sand：Silicon ash：Ultra-fine admixture：Steel fibre：Water reducer：Water=0.7~0.6：1.0~1.2：0.1~0.15：0.3~ 0.4：0.16~0.32：0.35~0.5：0.15~0.22, obtained RPC compression strength 130MPa~ 150MPa, rupture strength 20MPa~30MPa.

8. a kind of assembled ecotype RPC combined staircase according to claim 7, it is characterized in that, it is described Cement is not less than 42.5 grades of silicate cement for intensity；Sand is not more than the washing river sand or quartz sand of 2.5mm for maximum particle diameter；It is super Thin admixture is 1000m²The ground slag powder or flyash of/kg；Steel fibre for high-strength steel fibre that draw ratio is 50~70 or Copper facing steel fibre；Water reducer is not less than 25% aliphatic water reducing agent or polycarboxylate water-reducer for water-reducing rate；Water is running water or nothing The underground water of pollution.

9. a kind of assembled ecotype RPC combined staircase according to claim 8, it is characterized in that, it is described The preparation method of RPC is：Cement, sand, silicon ash, ultra-fine admixture, steel fibre are sequentially placed into concrete-agitating Machine, stirs 1min；Mixer is injected after water and water reducer are mixed, 1min is stirred, RPC is obtained；

The RPC for preparing will be stirred and be injected separately into base plate mould, box stairway die, ramp mould, vibrated into After type, 1d is stood, water wet curing 28d or more than 90 DEG C steam curing 24 hours are spread outside demoulding rear chamber, prepared and complete.

10. a kind of assembled ecotype RPC combined staircase according to claim 1, it is characterized in that, institute The plant raw-soil is stated to be made up of soil, haydite, flowers and plants seed, slow release chemical fertilizer；Haydite is in leca, lytag, sludge ceramsite It is a kind of；Flowers and plants seed be carnation, coreopsis, spiderflower, fragrant violet, fancy carnation, corn poppy, lily, jasmine, Mozzie buster, One or more in morning glory.