The present invention relates to a building structure and its construction method, and more particularly, to an integrated concrete building having prefabricated room modules of steel, and a construction method thereof.
Traditional residential or office buildings are generally built through in-situ casting concrete at the construction site. However, the construction of such traditional cast-in-situ buildings not only suffers disadvantages such as complicated construction steps, long construction period, intensive labor consumption and hardly controlled quality, but also brings about a large amount of construction rubbish and generates heavy noise and dust pollution, causing great disturbance on daily life of surrounding residents.
To this end, the construction of current buildings gradually adopts prefabricated building modules, such as prefabricated kitchens, prefabricated bathrooms, prefabricated bedrooms, and so on, which have been completed at respective factories in advance, and then assembled together at the construction site. This kind of construction can essentially reduce on-site workload, shorten the construction duration, and cut down labor cost. In addition, the disturbance on surrounding residents can be greatly reduced also.
In current prefabricated room modules of steel, steel members are connected with each other by bolts or welds during construction. Therefore, protruding bolts or welded projections will be present on outer surfaces of the steel members, so that these outer surfaces will have no smooth and beautiful appearance. In addition, regular maintenance and inspection of bolted or welded connections of the steel members are required. Moreover, prefabricated room modules of steel generally have poor thermal insulation and fire resistance, which will affect the residents' living experience.
In order to solve the above technical problem, the present invention provides an integrated steel concrete building, which can be assembled without bolts or welds. The present invention further provides a construction method thereof.
The present invention provides an integrated steel concrete building, comprising a plurality of prefabricated room modules of steel. Each prefabricated room module includes at least one column having a structure of hollow steel tube, which has an inner chamber inserted with penetrating rebars and poured with concrete. The penetrating rebars extend upwardly out of said column of said prefabricated room module into an inner chamber of a column of a prefabricated room module of an upper floor.
In an embodiment, adjacent columns of adjacent prefabricated room modules of a same floor are connected with each other through bolts at respective top portions of said adjacent columns
In an embodiment, each prefabricated room module includes a steel structure frame and a steel concrete bottom plate. The bottom plate is provided with a base beam extending downwardly, so that a fireproof cavity is formed between two vertically adjacent prefabricated room modules.
In an embodiment, each prefabricated room module further includes a steel concrete top plate, which is provided on its top surface with a boss extending upwardly. The boss is located at a position corresponding to the base beam of the prefabricated room module of said upper floor.
In an embodiment, each prefabricated room module further includes fireproof wall bodies.
In an embodiment, a gasket is interposed between columns of two vertically adjacent prefabricated room modules, and is provided with through-holes, through which the penetrating rebars can extend.
In an embodiment, a top joint formed between two horizontally adjacent prefabricated room modules is filled with fireproof sealant.
In an embodiment, the integrated steel concrete building further comprises prefabricated walkway plates and cast-in-situ concrete structural members.
The present invention further provides a construction method of the integrated steel concrete building as mentioned above, including:
step A, hoisting, after an Nth floor of the building is completed, the prefabricated room module to a predetermined position on an (N+1)th floor;
step B, inserting the penetrating rebars protruding out of the top portion of the column of the prefabricated room module of the Nth floor into the inner chamber of the column of the prefabricated room module of the (N+1)th floor;
step C, connecting adjacent columns of adjacent prefabricated room modules of the (N+1)th floor with each other through bolts at the top portions of said adjacent columns; and
step D, pouring cement mortar in the inner chamber of the column of the prefabricated room module of the (N+1)th floor.
In an embodiment, the method further comprises, before step A, step Al of forming a cast-in-situ concrete structure on the (N+1)th floor.
In an embodiment, the method further comprises, before step A, step A2 of filling fireproof sealant in a top joint between two adjacent prefabricated room modules of the Nth floor.
In an embodiment, the method further comprises, before step A, step A3 of placing a gasket on the top portion of the column of the prefabricated room module of the Nth floor, and step A4 of providing a cement mortar cushion layer at a periphery of the top portion of the prefabricated room module of the Nth floor.
In an embodiment, the method further comprises, after step D, step E of placing a prefabricated walkway plate of an (N+2)th floor.
Compared with the prior arts, the integrated steel concrete building according to the present invention has the following advantages.
1. The building is mainly formed by assembling prefabricated room modules together, which are prefabricated in respective factories. The interior decoration can be completed in advance, and various devices can be also pre-installed. In this manner, advantages such as uniform quality, high efficiency, low cost, and excellent thermal/sound insulation performances can be obtained. Accordingly, construction steps that are necessary to be performed at the construction site can be greatly reduced, and in the meantime, influences of weather conditions, labor resources, construction site restrictions or the like on the construction procedure can be also mitigated.
2. Adjacent prefabricated room modules can be connected with each other through rebars and grouting in the inner chambers of columns. Except that the top portions of horizontally adjacent columns have to be connected with each other with bolts, steel members can be connected without bolts or welds. Accordingly, surface smoothness of prefabricated room modules can be maximized, and maintenance and inspection of bolts or welds are unnecessary.
3. A fireproof cavity is formed between two prefabricated room modules vertically adjacent to each other, thus providing excellent fireproof performances. Therefore, a large amount of fireproof materials, such as fireproof board, fireproof glue, etc., can be saved, which is beneficial to fire prevention and cost reduction.
4. The present invention can also bring about advantages of engineering quality control, long distance transportation of large components, project planning, and construction period control, etc.
In the following, the embodiments of the present invention will be further illustrated with reference to the appending drawings.
As shown in
As shown in
The prefabricated room module 10 is generally manufactured with the following steps. In step 1, as shown in
When the prefabricated room module 10 is assembled at the construction site, as shown in
As shown in
Moreover, in order to facilitate grouting in the inner chamber of the column 1 and also take installation error between the vertically adjacent prefabricated room modules 10 into account, a gasket 4 is interposed between columns 1 of two vertically adjacent prefabricated room modules 10. The gasket 4 is provided with through-holes, through which the penetrating rebars 2 can extend.
In one embodiment, the construction method of the integrated steel concrete building according to the present invention includes the following steps.
Step 1. As shown in
Step 2. As shown in
Step 3. As shown in
Step 4. As shown in
Step 5. As shown in
Step 6. As shown in
Step 7. As shown in
Step 8. As shown in
Step 9. As shown in
Step 10. The above steps 1 to 9 are repeated, so as to complete the construction of an upper floor of the building.
It should be noted that the above construction method only illustrates the steps included in this embodiment, but does not define the order of the steps. The order of certain steps can be adjusted appropriately at the construction site according to actual needs.
The foregoing description is merely illustrative of preferred embodiments of the present invention, and is not intended to limit the present invention. Various changes and modifications may be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, and the like within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Number | Date | Country | Kind |
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202010372191.X | May 2020 | CN | national |