Abstract
The present invention discloses an integrated steel concrete building and its construction method. The building comprises a plurality of prefabricated room modules of steel, each including 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 the column of the prefabricated room module into an inner chamber of a column of a prefabricated room module of an upper floor.
Claims
1. An integrated steel concrete building, comprising a plurality of prefabricated room modules of steel, wherein 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 extending upwardly out of said column of said prefabricated room module into an inner chamber of a column of a respective prefabricated room module of an upper floor, wherein each prefabricated room module further includes a steel structure frame, a steel concrete top plate that is provided on its top surface with a boss extending upwardly, and a steel concrete bottom plate that is provided with a base beam extending downwardly, and wherein the boss is located in a position that the boss engages the base beam of the respective prefabricated room module of said upper floor so that a fireproof cavity is formed between two vertically adjacent prefabricated room modules.
2. The integrated steel concrete building according to claim 1, wherein 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.
3. The integrated steel concrete building according to claim 1, wherein the boss has a top, which engages a bottom of the base beam of the respective prefabricated room module of said upper floor, and wherein the fireproof cavity is defined by the steel concrete top plate of the each prefabricated room module and the steel concrete bottom plate of the respective prefabricated room module of the upper floor.
4. The integrated steel concrete building according to claim 1, wherein the boss has a top, a cushion layer is provided on the top and engages a bottom of the base beam of the respective prefabricated room module of said upper floor, and wherein the fireproof cavity is defined by the steel concrete top plate of the each prefabricated room module and the steel concrete bottom plate of the respective prefabricated room module of the upper floor.
5. The integrated steel concrete building according to claim 3, wherein each prefabricated room module further includes fireproof wall bodies.
6. The integrated steel concrete building according to claim 1, wherein a gasket is interposed between columns of two vertically adjacent prefabricated room modules, and is provided with through-holes, through which the penetrating rebars extend.
7. The integrated steel concrete building according to claim 1, wherein a top joint formed between two horizontally adjacent prefabricated room modules is filled with fireproof sealant.
8. The integrated steel concrete building according to claim 1, further comprising at least one prefabricated walkway plate and at least one cast-in-situ concrete structural member.
9. A construction method of the integrated steel concrete building according to claim 1, including: step A, hoisting, after an N.sup.th floor of the building is completed, the prefabricated room module to a predetermined position on an (N+1).sup.th floor; step B, inserting the penetrating rebars protruding out of the top portion of the column of the prefabricated room module of the N.sup.th floor into the inner chamber of the column of the prefabricated room module of the (N+1).sup.th floor; step C, connecting adjacent columns of adjacent prefabricated room modules of the (N+1).sup.th floor with each other through bolts at the top portions thereof; and step D, pouring cement mortar in the inner chamber of the column of the prefabricated room module (10) of the (N+1).sup.th floor.
10. The construction method of the integrated steel concrete building according to claim 9, further comprising, before step A, step A1 of forming a cast-in-situ concrete structure on the (N+1).sup.th floor.
11. The construction method of the integrated steel concrete building according to claim 9, further comprising, before step A, step A2 of filling fireproof sealant in a top joint between two adjacent prefabricated room modules of the N.sup.th floor.
12. The construction method of the integrated steel concrete building according to claim 9, further comprising, before step A, step A3 of placing a gasket on the top portion of the column of the prefabricated room module of the N.sup.th 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 N.sup.th floor.
13. The construction method of the integrated steel concrete building according to claim 9, further comprising, after step D, step E of placing a prefabricated walkway plate of an (N+2).sup.th floor.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1 schematically shows the structure of an integrated steel concrete building according to the present invention;
(2) FIG. 2 is a schematic perspective view of a prefabricated room module;
(3) FIG. 3 is an enlarged view of a column of the prefabricated room module;
(4) FIG. 4 schematically shows the connection between a concrete top plate and a concrete bottom plate of two vertically adjacent prefabricated room modules;
(5) FIG. 5 schematically shows step 1 of construction of the prefabricated room module;
(6) FIG. 6 schematically shows step 2 of construction of the prefabricated room module;
(7) FIG. 7 schematically shows step 3 of construction of the prefabricated room module;
(8) FIG. 8 schematically shows a perspective view for step 1 of the construction method for the integrated steel concrete building according to the present invention;
(9) FIG. 9 schematically shows a vertical cross-sectional view for step 2 of the construction method for the integrated steel concrete building according to the present invention;
(10) FIG. 10 schematically shows a perspective view for step 2 of the construction method for the integrated steel concrete building according to the present invention;
(11) FIG. 11 schematically shows a perspective view for step 3 of the construction method for the integrated steel concrete building according to the present invention;
(12) FIG. 12 schematically shows a vertical cross-sectional view for step 4 of the construction method for the integrated steel concrete building according to the present invention;
(13) FIG. 13 schematically shows a perspective view for step 4 of the construction method for the integrated steel concrete building according to the present invention;
(14) FIG. 14 schematically shows a vertical cross-sectional view for step 5 of the construction method for the integrated steel concrete building according to the present invention;
(15) FIG. 15 schematically shows a perspective view for step 5 of the construction method for the integrated steel concrete building according to the present invention;
(16) FIG. 16 schematically shows a vertical cross-sectional view for step 6 of the construction method for the integrated steel concrete building according to the present invention;
(17) FIG. 17 schematically shows a vertical cross-sectional view for step 7 of the construction method for the integrated steel concrete building according to the present invention;
(18) FIG. 18 schematically shows a perspective view for step 8 of the construction method for the integrated steel concrete building according to the present invention; and
(19) FIG. 19 is an enlarged view of the connection area of the columns of two vertically adjacent prefabricated room modules as shown in FIG. 14.
DETAILED DESCRIPTION OF THE EMBODIMENTS
(20) In the following, the embodiments of the present invention will be further illustrated with reference to the appending drawings.
(21) As shown in FIG. 1, an integrated steel concrete building according to the present invention is mainly formed by assembling a plurality of prefabricated room modules 10 of steel together. The integrated steel concrete building can further include other prefabricated components, such as prefabricated walkway plates 30, prefabricated walls, prefabricated stairs, or the like. According to specific design needs, cast-in-situ concrete structural members 40 can be also provided at some particular locations of the building, such as the lift well.
(22) As shown in FIG. 2, each prefabricated room module 10 is a self-contained component that has been prefabricated at a respective factory in advance, and usually has a square shape. The prefabricated room module 10 comprises a steel structure frame 11, a reinforced concrete bottom plate 12, a reinforced concrete top plate 14, and wall bodies 16. Of course, the prefabricated room module 10 can also be designed into other shapes according to design needs. Alternatively, doors and/or windows can be formed on one or more wall bodies of one or more of the prefabricated room modules, or one or more prefabricated room modules may not be provided with the top plate, the bottom plate, or one of the wall bodies. Moreover, the top plate and the bottom plate can be embedded with various lines or boxes in advance, and the interior decoration of the prefabricated room module 10 may be completed in advance and various devices may be pre-installed, in order to minimize the on-site construction duration. Among others, the steel structure frame 11 is formed by assembling steel profiles, and columns 1 are provided at the periphery of the steel structure frame 11, especially at four corners thereof, each column 1 having a structure of hollow steel tube.
(23) The prefabricated room module 10 is generally manufactured with the following steps. In step 1, as shown in FIG. 5, the steel structure frame 11 is formed by assembling steel profiles. In step 2, as shown in FIG. 6, steel molds for the top and bottom plates respectively are assembled, rebars of the top and bottom plates are fixed and bundled, pre-embedded members are mounted, and then concrete are cast for the top and bottom plates. In step 3, as shown in FIG. 7, wall bodies of the periphery wall and the inner partition wall of the prefabricated room module 10 are assembled, wherein the wall bodies may be formed with fireproof materials, in order to enhance the fireproof performance of the building.
(24) When the prefabricated room module 10 is assembled at the construction site, as shown in FIGS. 3 and 19, penetrating rebars 2 are inserted into an inner chamber of the column 1 of the prefabricated room module 10, and then concrete is poured therein. The top portion of each penetrating rebar 2 extends vertically out of the column 1 of the prefabricated room module 10 into the inner chamber of the column 1 of the prefabricated room module 10 of an upper floor. In this manner, two vertically adjacent prefabricated room modules 10 are connected with each other through the penetrating rebars 2 and concrete, thus no bolts or welds are necessary for connecting adjacent steel members. Accordingly, surface smoothness of the prefabricated room modules 10 can be maximized, and maintenance and inspection of bolts or welds are unnecessary. Further, as shown in FIG. 16, the top portions of adjacent columns 1 of two horizontally adjacent prefabricated room modules 10 of the same floor are connected together by penetrating bolts, thus realizing connection of the prefabricated room modules 10 along the horizontal direction.
(25) As shown in FIGS. 4 and 19, the reinforcing concrete bottom plate 12 is provided with a base beam 13 protruding downwardly at a position adjacent to the periphery thereof, and the top surface of the reinforcing concrete top plate 14 is provided with a boss 15 protruding upwardly, wherein the boss 15 is located at a position corresponding to the base beam 13 of the prefabricated room module 10 of an upper floor. In this manner, a fireproof cavity 20 is formed between two vertically adjacent prefabricated room modules 10 after assembly. Thus the fireproof performance of the building can be improved, and in the meantime a large amount of fireproof materials, such as fireproof boards, fireproof glue, etc., can be reduced, thus enhancing fireproof and saving cost. In addition, a top joint formed between two horizontally adjacent prefabricated room modules 10 is filled with fireproof sealant 5, which can further enhance the fireproof performance.
(26) 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.
(27) In one embodiment, the construction method of the integrated steel concrete building according to the present invention includes the following steps.
(28) Step 1. As shown in FIG. 8, after an N.sup.th floor of the building is completed, a cast-in-situ concrete structure 40, such as a concrete main wall, is constructed on an (N+1).sup.th floor.
(29) Step 2. As shown in FIGS. 9 and 10, the fireproof sealant 5 is filled in the top joint between two adjacent prefabricated room modules 10 of the N.sup.th floor.
(30) Step 3. As shown in FIG. 11, the gasket 4 is placed on the top portion of each column 1 of the prefabricated room module 10 of the N.sup.th floor, for subsequent grouting.
(31) Step 4. As shown in FIG. 11, a cement mortar cushion layer 7 is provided on the top surface of the boss 15 at the periphery of the top portion of the prefabricated room module 10 of the N.sup.th floor.
(32) Step 5. As shown in FIGS. 12 and 13, the prefabricated room module 10 is hoisted to a predetermined position on the (N+1).sup.th floor, so that the penetrating rebars 2 protruding out of the top portion of the column 1 of the prefabricated room module 10 of the N.sup.th floor are inserted at the bottom of the inner chamber of the column 1 of the prefabricated room module 10 of the (N+1).sup.th floor.
(33) Step 6. As shown in FIGS. 14 and 15, the penetrating rebars 2 are entirely inserted into the inner chamber of the column 1 of the prefabricated room module 10 of the (N+1).sup.th floor.
(34) Step 7. As shown in FIG. 16, adjacent columns 1 of the adjacent prefabricated room modules 10 of the (N+1).sup.th floor are connected with each other with penetrating bolts at the tops thereof;
(35) Step 8. As shown in FIG. 17, cement mortar is poured into the inner chamber of the column 1 of the prefabricated room module 10 of the (N+1).sup.th floor.
(36) Step 9. As shown in FIG. 18, the prefabricated walkway plate 30 of an (N+2).sup.th floor is placed.
(37) Step 10. The above steps 1 to 9 are repeated, so as to complete the construction of an upper floor of the building.
(38) 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.
(39) 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.
