STEEL-FRAME STRUCTURE AND METHOD OF CONSTRUCTION
BY USING THE SAME
TECHNICAL FIELD This invention relates to a frame structure, preferably a steel frame structure and a method of construction by using the same, in which the frame structure is installed as a framework of buildings, and more specifically, to a sectional steel-frame structure and a method of construction by using the same in which the sectional steel-frame structure may be assembled and constructed rapidly and conveniently. By using the steel- frame structure, it is possible to simultaneously perform construction work of interior/exterior materials and insulation boards and concrete pouring work and the removal work of the molds is unnecessary, so that construction time and construction cost may be reduced considerably.
Generally, when construction of a frame structure for a concrete building is performed, reinforcing rods, section steels, beams, and the like are arranged in perpendicular and horizontal directions for inner and outer walls. Interior/exterior molding plates are installed at both sides of the arranged materials. Fresh concrete is poured in a mold formed as above. After the
poured concrete is cured in the molds, reinforcing rods are arranged on the cured concrete. Molding plates are installed on the reinforcing rod. Fresh concrete is poured in the molds to form a slab. When the inner and outer walls and slabs are formed completely, removal work of the mold and construction work of the insulation boards and interior/exterior materials are performed in order.
The conventional construction process will now be explained in more detail. In the construction of a building, after foundation work of the ground, reinforcing rods, section steels, beams, and the like are arranged on certain portions in the perpendicular and horizontal directions and the arranged reinforcing rods are linked each other. Wooden molds are usually installed on the inner and outer sides of the arranged reinforcing rods. The inner and outer molds may be supported by struts set up on respective outer surfaces of the interior/exterior molding plates or interval keeping means.
The conventional steel-frame structure and method of construction by using the same have, however, disadvantages that the struts and the interval keeping means are complicated to use. The struts must be respectively struck with big nails against the molding plates, making the installation and removal of the struts difficult. In addition, the interval keeping means must be fixed between the interior/exterior molds by passing through therebetween, which is time consuming.
Further, the conventional frame structure and method of construction by using the same have further problems that when the interior/exterior molding plates installed as above are removed after the walls and the slabs are completely cured as a concrete body, it takes a long time to remove the struts, the interval keeping means and the molding plates in order. Labor costs increase greatly in addition to the cost of subsidiary materials such as the molding plates, struts and interval keeping means. Also, the conventional method of construction has still further problems that construction costs increase considerably due to extensions in construction time and the heavy expense of labor costs, since the construction works of the inner and outer walls, the insulation boards, and the interior/exterior materials are performed not simultaneously but separately in such a manner that the insulation boards are installed inside an outer wall after construction work of the inner and outer walls and slabs, the construction work of the insulation work for installing insulation plates inside the outer walls and piling of bricks, and the interior/exterior materials are performed in order.
Korean patent application 96-54011, Reg. No. 189216, (referred to Prior Art) by this applicant has suggested an improvement of the steel-frame structure wherein it is possible to simultaneously construct work of interior/exterior materials and insulation boards with the
concrete pouring work upon completion of the steel-frame structure, and as a result, construction time can be reduced.
However, this prior art has another disadvantage that the interior/exterior plates are assembled only at the portions where the brackets having the screw holes are engaged. Further, the engagement bolt is exposed outward the steel interior/exterior material plates, thereby causing the rough surface.
DISCLOSURE OF THE INVENTION The present invention is made to solve the disadvantages of the prior art and has an object to provide a sectional steel-frame structure and a construction method in simultaneously performing the construction work of the interior/exterior materials and the insulation board in which the interior/exterior plates serving as steel molds are installed for engagement at any position from upper to lower portions and a head of the engagement bolt is not exposed outward to prevent the surface from being rough, thereby considerably reducing construction expenses and labor cost.
According to the present invention, there is provided a steel-frame structure comprising vertical members, horizontal members, connecting members of which center is engaged on the surface of the vertical members, supporting members in engagement with brackets at both end portions
of the connecting members, interior/exterior panel plates in engagement with the supporting members, and fastening means engaged on the surface of the panel plates without protruding the head of the fastening means. In the present invention, the insulation board is inserted between the horizontal member and the vertical member, and fresh concrete is poured and cured therebetween with the interior/exterior material plates at both ends of the connecting members. The surface of the interior/exterior plates becomes smooth because the head of the fastening means is not protruded outward. In addition, the removal work of the molds is unnecessary, so that construction time and construction cost are reduced considerably.
BRIEF DESCRTPTTON OF THF. DRAWINGS
The present invention will become more fully understood from the detailed description given hereinafter and the accompanying drawing which is given by way of illustration only, and thus is not a limitation of the present invention, and wherein:
Fig. 1 is a perspective view showing a sectional steel-frame structure according to an embodiment of the present invention; Fig. 2A is a plan view illustrating the molding process for simultaneously performing construction of insulation boards and interior/exterior materials by using
a steel-frame structure according to the preferred embodiment of the present invention;
Fig. 2B is a plan view illustrating the molding process for pouring concrete into the structure of Fig. 2A;
Fig. 3 a side view showing a sectional steel-frame structure according to an embodiment of the present invention;
Fig. 4 is a side view showing an engagement of the interior/exterior panel plates and the connecting members;
Fig. 5A is a perspective view showing a disengagement of the bracket and the connecting members; and
Fig. 5B is a perspective view showing an engagement of the bracket and the connecting members of Fig. 5A.
BEST MODE FOR CARRYING OUT THE INVENTION
In Fig. 1, a sectional steel-frame structure according to the present invention has vertical members 200, horizontal members 100, connecting members 400 of which center is engaged on the surface of the vertical members 200, supporting members 500 in engagement with brackets at both end portions of the connecting members 400 and interior/exterior plates 600a and 600b assembled to the supporting member 500. The vertical members 200 and the horizontal members 100 are section steel materials in the shape of a bracket *U" and have a number of holes perforated along surfaces
thereof at regular intervals in a longitudinal direction and a number of holes perforated along two end parts at regular intervals in a longitudinal direction. The insulation board 300 is inserted in the insertion groove of the assembled horizontal members 100 and the vertical members 200 as shown in Fig. 2A.
The connecting member 400 has a number of holes 401 perforated on surface thereof at regular intervals in a lateral direction in order to be fixed to the vertical member 200. At both ends of the connecting member 400 brackets 410 are located, each having a hole 411 as shown in Figs. 5A and 5B.
The supporting member 500 in the shape of a bracket *U" has a number of holes 511 along two end parts in a longitudinal direction. The holes 511 coincide with the holes 411 perforated on the bracket 410. On surface thereof a number of holes 502 are formed at regular intervals in the longitudinal direction, so that the interior/exterior plates 600a and 600b are engaged through the holes 502.
The interior/exterior plates 600a and 600b are formed with two bent end parts. One inner bent end part 601 being in contact with the supporting member 500 is interposed with the other outer bent end part 602 of another interior/exterior plate, while the surface 603 is to be maintained in plane with repeated assembly. The inner and outer bent end parts 601 and 602 have holes 604 and 605
through which the screw 701 can pass but not the body 702. On the surface 603, insertion holes 606 are formed to coincide with the holes 604 and 605 through which the head 703 of the fastening "means 700 can pass. A method of construction by using the sectional steel-frame structure as above will be explained in more detailed.
<First process to construct the main frame> A number of vertical members 200 are installed with a predetermined interval on ground. Horizontal members 100 are fixed to coincide the holes 102 and 202 to be engaged by riveting or bolting through the holes. The horizontal members 100 are engaged at desired positions from bottom to top of the vertical members 200, to complete the main frame work.
<Second process to insert the insulation board> The insulation board 300 is inserted in the space between the horizontal member 100 and the vertical member 200 as shown in Fig. 2A.
<Third process to engage the supporting member> After completion of the main frame structure, a number of connecting members 400 are engaged with the vertical members 200 to coincide the hole 401 in the middle of surface thereof with the hole 201 of the vertical member 200 by riveting or bolting through the
The supporting member 500 is fixed at the bracket 410 of the upper connecting member 400 and at the bracket 410 of the lower connecting member 400 to coincide with the holes 411 and 501 by riveting or bolting. To repeat this work at the brackets 410 of each rows ensures the engagement of the supporting member 500.
<Fourth process to construct the interior/exterior plates> At both supporting members 500 interior/exterior plates are fixed from the lower parts. Specifically, the inner bent end part 602 of the interior plate 600a is interposed with the outer bent end part 601 of another interior plate 600a, and the inner bent end part 602 of the exterior plate 600b is interposed with the outer bent end part 601 of another exterior plate 600b, so that the fastening means 700 is inserted by nailing to fix therebetween through the holes 604 and 605 which coincide with the hole 502 perforated on the surface of the supporting member 500.
Referring to Fig. 4, the screw 701 of fastening means 700 is nailed to the hole 502 through the groove 605, but the body 702 having larger diameter than the screw is not nailed. The head 703 of the fastening means 700 is fixed to the holes 604 and 605 formed on the interior/exterior plates 600a and 600b, so that the head 703 of the engaging means 700 stops up the insertion hole 606. The preferred
length of supporting member 500 according to the present invention is long and the engagement with the interior/ exterior plates 600a and 600b are readily made at any desired position. The length of the supporting member is not restrictive in the invention.
The head 703 of the fastening means 700 is not protruded from the interior/exterior plates 600a and 600b and is completely filled with the insertion holes 606 (Fig. 3), which prevents the rough surface. This also functions to prevent the concrete from being leaked through the insertion holes 606.
<Fifth process to pour the concrete>
After the steel-frame structure as above is completed, the fresh concrete is poured and filled as shown in Fig. 2B. The concrete is cured with the insulation board 300 therein. On the inner and outer sides of the wall the interior/exterior plates 600a and 600b are constructed together with the structure.
The insulation construction work may be performed at any time before pouring the concrete, i.e., after assembling the supporting member 500 or after assembling the interior/exterior plates 600a and 600b.
The steel-frame structure of the present invention enables to simultaneously perform the insulation work and inner/exterior plates work and it becomes unnecessary to remove the molding, thereby shortening the construction
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.
EFFECT OF THE INVENTION
In a steel-frame structure and a method of construction by using the same according to the present invention, the sectional steel-frame structure may be assembled and constructed rapidly and conveniently. By using the steel- frame structure, it is possible to simultaneously perform construction work of interior/exterior materials and insulation boards and concrete pouring work, so that construction time and construction cost may be reduced considerably.