“Zhijie ladder” is a new type of precast ladder.

1) the factory prepares goods routinely and can leave the factory in three days.

So we propose a new solution based on the new logic.

4) there is no need for formwork maintenance.

Few people care about the modeling of an evacuation staircase and the embodiment of its design skills.

For example, 1) the weight is only 1 / 3 of that of the PC staircase, which requires less materials and saves the transportation cost.

Its use scene is very limited, but it occupies a lot of construction resources and even design resources (as little partners who have done design know, painting stairs belongs to” dirty work “).

The “evacuation stairs” exist “for safety reasons.

2) there is no need for wood formwork, steel formwork or aluminum formwork on site, which saves the measure cost and reduces the carbon emission.

From the perspective of fire protection, UHPC ultra-high performance concrete is a high-quality building material with strength grade of C120, wear resistance and fire resistance, which fully meets the specifications.

Even in the most cool architectural modeling, “evacuation staircase” should be defined as the “hero behind the stage”.

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The cost can be saved in many aspects, and the comprehensive cost can be saved by about 1 / 3.

From the perspective of structural safety, in the authoritative mechanical test, the vertical bearing capacity of the step plate in the middle of the span reaches 1.2 tons, and the bearing capacity of rolling traditional stairs has no doubt about its safety.

2) light weight and convenient transportation, The lifting requirements of tower crane are low.

It is worth noting that if stairs are strictly “defined” through the scene, there is a large classification in the functional type of stairs, that is, the “evacuation stairs” specially used for fire evacuation.

5) all right angles of the visible surface are subject to circular arc chamfering treatment, which makes the external corners safer and the internal corners do not accumulate dust.

The mature market and the demand for cost control make either of them have considerable room for innovation.

They pay more attention to how the designers and constructors can better save the construction cost under the condition of meeting the specifications.

“Zhijieti” perfectly meets the requirements of various types of work in the design.

If you want to see more assembly video information, enter the video number below ~ “China construction industrialization Engineers conference click the applet to sign up” and “hot article recommendation of this issue” click on the lower left corner“.

2 standard step board 2.1 Compared with traditional cast-in-situ stairs or PC precast stairs, advantage Zhijie ladder has the advantages of better quality, faster construction period and lower cost.

The on-site installation speed is fast, which does not affect the construction period of the main building.

6) 2-hour fire prevention, which meets the 1-hour fire prevention requirements of the evacuation stairs.

There are three forms of traditional stairs, which correspond to different application scenarios and different degrees of construction complexity.

2.3.

It is a scheme that can replace traditional stairs.

Fig.

7) a variety of surface effects are optional, which is better than the traditional stairs.

Its application scenario can be extended to all evacuation stairs, which is the optimal solution under the design logic of evacuation stairs.

Its step plate adopts UHPC standard parts, and the ladder beam adopts standard steel ladder beam, which are connected by bolts.

The design evaluation of “evacuation staircase” is based on construction considerations rather than modeling debate.

At the same time, it can be concluded that the common disadvantages of the three are: the on-site construction is complex, and if prefabrication is adopted, the cost will be significantly increased.

Stairs are unavoidable building components of multi-storey and high-rise buildings, which are the most common and easy to ignore.

Use method: the designer directly selects the standard model of Jieti according to the architectural drawing, and the owner or the general contractor can directly purchase it to Jieti and then transport it to the site for installation.

3) the main structure does not need half story high structural column and ring beam, and the self weight is greatly reduced, which saves the cost of the main structure.

5) the integration of decoration structure, There is no need to make another finishing layer, which greatly saves the decoration work and the decoration cost Use scenario Zhijie staircase is a cast staircase product developed by Taida construction technology for traditional stairs.

It can be used not only in traditional cast-in-situ structures, but also in precast PC structures and steel structures.

▲ click the picture to sign up for the engineer conference source: innovation 1 Correctly define “stairs”.

3) it is easy to install on site.

4) Even if the step is damaged, it can be replaced by a single step, which is more convenient for later maintenance and repair.

The standardized management saves the management cost.

The reason why the three forms of stairs are widely used and cannot be easily replaced in their own scenes is that they have advantages and disadvantages.

The cost is saved to Jieti.

From March 4 to 6, 2022, the 2021 China construction industrialization Engineers conference hosted by precast building network will be held.

4) the standard atlas is directly selected, which does not need the designer to draw and calculate the quantity.

1 construction site of traditional cast-in-situ stairs 2 The innovative scheme “Zhijie staircase” is a new type of assembled staircase developed by Taida construction technology.

In all high-rise buildings and most multi-storey buildings, the convenience and comfort brought by elevators can not replace the fire-fighting function of stairs.

Ferrule Insert

The logic of mechanical structure is clear.

Fig.

3) the surface texture is good and the touch is delicate.

Better quality 1) UHPC is used as the step board, with high strength, and the single point concentrated bearing capacity in the middle of the span reaches 1.2 tons; 2) The tread texture has been renewed for 50 years from the outside to the inside, rather than the damaged paint needs to be repaired and the damaged ceramic tile needs to be redone.

At that time, we will invite Peng Li, general manager of Shanghai Taida Construction Technology Co., Ltd., to share the topic “carbon reduction of precast buildings with standardization”.