CN211172777U

CN211172777U - Assembled combination stair

Info

Publication number: CN211172777U
Application number: CN201921347417.XU
Authority: CN
Inventors: 伦恒轩; 袭金真
Original assignee: Binzhou University
Current assignee: Binzhou University
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-08-04
Anticipated expiration: 2029-08-20

Abstract

The utility model provides an assembled combination stair belongs to building technical field, and utility model assembled combination stair, mainly used people flow field such as public building more, assembled combination stair are formed by two small-size prefabricated stair combinations, and two small-size stair are in the prefabrication in-process about the concatenation position the even T type recess of reserving several suitable sizes in both sides, two stair combinations, two T type recess docks into the I-shaped recess. Meanwhile, I-shaped members need to be manufactured in advance, fine aggregate concrete or grouting material with the strength not lower than that of the prefabricated staircase concrete is prepared, after the prefabricated staircase is fixed on a construction site, the I-shaped members are placed into the grooves, and the fine aggregate concrete or grouting material is poured to play a role in fixing and bonding the I-shaped members. In this way, two parallel, independent prefabricated risers are connected as a whole. So the utility model discloses a fall into two combination stairs with a large-scale assembled stair, overcome the hoist and mount difficulty, reduced the construction degree of difficulty, and construction cycle is short, reduces manpower and materials and also keeps the stair wholeness simultaneously, has characteristics such as green concurrently.

Description

Assembled combination stair

Technical Field

The utility model belongs to the technical field of assembled stair technique and specifically relates to assembled combination stair is applicable to the more assembly type building place of passenger flow volume.

Background

With the continuous progress of society, in order to meet the high-speed development of society, the building of houses can catch up with the pace of social development, and as early as the early stage of the 20 th century, many countries sprout to develop assembly type buildings and make some preliminary attempts.

The assembled type has many characteristics that the wall body, the column, the beam and the plate can be produced and processed in batches in factories, and the appearance of the assembled type can be conveniently designed according to the requirements of buildings and can be transported to a site for assembly. Even though the assembly type building is researched by people for about a century, the assembly type building also has some defects.

In most buildings today, stairways are used as connecting channels between upper and lower floors. Most of the existing buildings adopt a cast-in-place method to pour the stairs, and fixed moulds are adopted to manufacture the stairs on site, namely, the fixed moulds are built through formworks, and internal reinforcing bars are formed by pouring concrete, so that the existing buildings often have the defects of more wet operation, long construction period, environmental pollution, heavy weight, high cost and the like. Even in the fabricated building, the self weight of the large stairway is a great challenge for construction, and the requirements for manual operation and equipment are high. Because the large staircases are bulky, great difficulty is also brought to prefabrication and transportation.

In order to solve the above technical problems, there is a need to provide an innovative fabricated assembled stair to overcome the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The utility model provides a structure more reliable assembled stair has good anti-seismic performance, characteristics such as convenient transportation and installation simultaneously, and this utility model provides a two light-duty combination stairs make two staircases unite two into one under relevant part is connected, keep the integrality of stair structure. The problems of inconvenient transportation, complex formwork support, non-environmental protection and the like can be effectively solved, and the construction efficiency is improved.

The assembled combined stair of the utility model comprises two ordinary small stair bodies; the upper parts of the middle merging parts of the two stairs are reserved with T-shaped grooves perpendicular to the pedals and placed into the grooves to connect the I-shaped members of the two stairs, and polystyrene for bonding the contact parts of the two stairs is additionally arranged, so that no gap exists between the two stairs, and the vacant parts of the grooves are filled with fine aggregate concrete or grouting material with the strength not lower than the concrete strength of the prefabricated stairs, so that full filling is ensured.

The thickness of the footplate, the length of the stair tread and the width of the footplate are prefabricated according to the actual requirements of the building; the depth, the width and other dimensions of the grooves are determined according to the distance between the outermost sides of the lower parts of the two stair treads, and the number of the grooves is determined according to the length and the actual condition of the stair.

Description of the drawings:

FIG. 1 is an oblique view of the upper portion of a staircase; FIG. 2 is an oblique view from above of the I-shaped member; FIG. 3 is a cross-sectional view of the interface of two stairs; fig. 4 is a top view of the assembled stairway.

In the figure 1-combined stairs; 2-T-shaped grooves; 3-contact surfaces of two combined stairs; 4-an i-shaped member.

The specific implementation mode is as follows:

this utility model discloses mainly including assembled stair 1, T type recess 2 is all reserved to the upper surface to and prefabricated size slightly is less than two T type recesses and makes up into the I-shaped component 4 of I-shaped recess size.

The stair is prefabricated according to the required stair size before construction, the width of the tread is 1/2 of the size of the stair tread required to be installed in the building, and grooves are reserved for every 4-5 steps on average.

Polystyrene is smeared on the contact surface of the two stairs in advance in the installation process, and the two stairs are installed in place through equipment and manpower and are tightly attached. And placing the I-shaped component into the groove, properly fixing, adopting fine aggregate concrete or grouting material for pouring, compacting, properly maintaining, and connecting the two prefabricated step boards into an integral step section.

Claims

1. The utility model provides an assembled combination stair, includes that two prefabricated stairs (1), a plurality of I shape component (4), stair edge reserve T type recess (2), and two butt joint of T type recess (2) form the I shape recess, the I shape recess cooperatees with I shape component (4), its characterized in that I shape component (4) and the clearance packing of two T type recesses (2) have the pea gravel concreten.

2. The assembled stair of claim 1, wherein the interface between the two assembled stairs is bonded and sewn with polystyrene.