JP2012127106A - Curing facility of lower equipment present near high-rise structure and construction method of curing facility of lower equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curing facility of lower equipment present near a high-rise structure, and a construction method of the curing facility of the lower equipment.SOLUTION: A curing facility 1 of the lower equipment present near the high-rise structure includes: a surrounding leg part 2 installed so as to surround the side wall of the lower equipment in order to have a height exceeding a ceiling part of the lower equipment assuming that the unloading work of a heavy decomposition object when the high-rise structure is demolished is limited to a direction not the upper side of the lower equipment and a sufficient falling prevention measure is executed to the high-rise structure; and a roof truss 3 mounted on the upper part of the surrounding leg part 2. Also, the roof truss 3 is formed of a framework foundation part in a flat board shape assembled beforehand to have a prescribed height, and a steel plate fixed to the upper surface of the framework foundation part. Also, as the steel plate of the roof truss 3, a universal steel plate material and a scaffold plate material are adopted.

Description

  When dismantling an advanced chimney or the like that is a high-rise structure, for example, it is common to take measures to prevent falling, such as installing a vertical net around the chimney.

  In the present invention, when performing a high-place work to dismantle a high-rise structure for which such a sufficient anti-falling measure has been implemented, when a lower facility exists in the vicinity of the high-rise structure, the flying from above The present invention relates to a curing facility for a lower equipment existing in the vicinity of a high-rise structure and a method for constructing a curing facility for a lower equipment in consideration of falling of an object.

  Examples of conventional curing facilities for the lower equipment T include those shown in FIGS. This curing facility is for curing, for example, two adjacent tanks installed for storing a large amount of liquid used in a power plant or the like.

  For example, when carrying out high-altitude work that dismantles an advanced chimney or the like that is a high-rise structure, various dismantled items may fall, and various members including heavy objects as falling objects Is assumed. Therefore, the curing facility of the lower equipment T existing in the vicinity of the high-rise structure assumes a heavy object as a fallen object and adopts a very robust structure.

  Specifically, as shown in FIGS. 21 and 22, a plurality of thick column members 100 are erected around the tank, and a plurality of diagonal members 101 are fixed to the side surface of each column member 100. In addition, a plurality of horizontal members 102 are arranged at the top of each column member 100.

  Then, as shown in FIGS. 21 and 22, a lining plate 104 is placed above the tank via a joist portion 103. Since this lining plate 104 has a predetermined thickness and is very heavy, a solid steel member such as H steel is used as the pillar material 100 and the horizontal member 102 that support the lining plate 104. The entire facility is reinforced. A soundproof panel 105 is installed on the entire outer periphery of each column member 100.

  In addition, for example, there is a curing facility shown in Patent Document 1 as an all-weather temporary building. This facility includes a plurality of frame scaffolds constituting a surrounding wall shaft, a plurality of truss beams constituting a hut assembly, a curing sheet covering the surrounding wall shaft assembly, and a plurality of base plates covering the hut assembly. And a roof panel, and an overhead crane that travels under the hut assembly, and the peripheral wall shaft assembly is constructed by assembling the frame scaffolding while being assembled vertically and horizontally, The truss beam is constructed on the upper end of the peripheral wall shaft set, the curing sheet is attached to the peripheral wall shaft set, and the base plate and the roof panel are laid on the truss beam. .

JP-A-6-146609

  However, in the curing facility for the lower equipment T shown in FIGS. 21 and 22 described above, the following adverse effects have occurred.

  In this curing facility, a very heavy lining plate 104 is placed above the lower equipment T via a joist portion 103. In order to support the lining plate 104, a column material 100 and a side plate are arranged. Since a solid steel member such as H steel is used as the base material 102, the entire curing facility is very robust and the construction cost is high.

  In addition, it takes time to lift and fix a plurality of horizontal members 102 using a large crane, and it takes a long time to build a curing facility.

  Furthermore, since the individual members themselves constituting the curing facility have a considerable weight, during the construction, for example, when the soundproof panel 105 installed around each pillar material 100 receives a strong wind pressure, There was a possibility that a part of the constituent members collapsed and the lower equipment T was damaged. In addition, there is a high risk for handling heavy objects for the safety of workers.

  Such an adverse effect is due to the fact that a solid steel member such as the lining plate 104 or H steel is used as a member constituting the curing facility, and each component member is very heavy.

  That is, since the conventional curing facility assumes various members including heavy objects as falling objects, the members constituting the curing facility of the lower equipment T must be configured with strong heavy objects. However, the curing installation (dismantling) work that installs the heavy curing material on the upper part of the lower equipment T itself is a factor that increases the risk of causing a disaster to the lower equipment T.

  In addition, the construction cost will increase due to the ordering of custom-made materials due to the increase in the weight of the curing material and the enlargement of construction heavy machinery for the installation (disassembly) of the heavy curing material.

  Here, in the case of disassembling a sophisticated chimney or the like that is a high-rise structure in the vicinity of the lower facility T, consideration will be given to the fall of flying objects on the lower facility T.

  The unloading work of the heavy demolished material during the construction of the chimney is limited, for example, by restricting the 300-ton crawler crane turning direction to a direction not on the upper side of the lower equipment T, so that the heavy demolished material falls on the lower equipment T. It's hard to think.

  In addition, after assembling the chimney scaffolding along the chimney, the chimney is covered with a vertical net to protect against falling objects. It is assumed that the possibility of falling is extremely low.

  That is, even if a lightweight dismantled object falls after the chimney is covered with a vertical net or the like, the lightly dismantled object exists inside the vertical net. Therefore, there is a low possibility that the lightweight dismantled material will fall over the lower equipment T over the vertical net.

  However, when assembling a scaffold for construction along the chimney, which is a high-rise structure to be dismantled (including dismantling), the chimney itself has no cure for falling objects, so it is used for assembling the scaffold. The possibility of the clamp material falling cannot be completely denied. Therefore, it was assumed that the clamp material (having a weight of about 1 kg) for assembling the scaffolding in the upper part of the chimney is a flying object to the lower equipment T.

  And if the flying object to the lower equipment T is a clamp material, it is not necessary to mount the lining board 104 above the lower equipment T as a curing facility, and other members can be used. It becomes.

  That is, by restricting the flying object to the lower equipment T to the clamp material, it is no longer necessary to use a strong heavy object as a member constituting the curing facility.

  In addition, the curing facility shown in Patent Document 1 is mainly intended to perform various constructions as scheduled without being affected by bad weather, and does not take into account the falling objects.

  Specifically, a base plate is laid on the truss beam, and a roof panel is laid on the base plate, and the base plate is laid at predetermined intervals so that it can be daylighted. Is a daylight plate that can be used for lighting. For example, when the clamp material (scaffolding brackets having a weight of about 1 kg) falls from a high position and collides with a roof panel or the like, the clamp material May penetrate the roof panel or the like and fall onto the lower facility T.

  Therefore, the present invention has been created in view of the existing circumstances as described above. For example, an advanced chimney that is a high-rise structure is provided in the vicinity of a lower facility containing a predetermined liquid. In the case of dismantling, the unloading work of heavy demolition is limited to the direction that is not on the upper side of the lower equipment to prevent the heavy demolition from falling to the lower equipment and a vertical net is installed around the chimney etc. It is intended to provide a curing facility and a method for constructing a curing facility based on the premise that a sufficient amount of fall prevention measures have been taken to prevent a situation where a lightweight dismantled product falls to the lower equipment.

  Specifically, even when the clamp material or the like has fallen from above, this is received by the steel plate to prevent the occurrence of the situation where the clamp material or the like falls on the lower equipment, and relatively Providing a curing facility for the lower equipment and a curing facility for the lower equipment that exist in the vicinity of the high-rise structure, which reduces the construction cost and shortens the construction period by using thin steel plates. For the purpose.

  The curing facility of the lower equipment existing in the vicinity of the high-rise structure according to the present invention is limited to the direction in which the unloading work of the weight dismantled material when the high-rise structure is demolished is not on the upper side of the lower equipment. On the premise that sufficient fall prevention measures will be applied to the high-rise structure, the surrounding leg is installed so as to surround the side wall of the lower equipment so as to have a height exceeding the ceiling part of the lower equipment, The problem mentioned above was solved by being comprised from the roof truss mounted in the upper part of the leg part.

  In addition, in the lower leg portion of the lower equipment, the go leg part is constructed by assembling a scaffold with a predetermined height so as to surround the side wall of the lower equipment, and a plurality of pre-assembled framework scaffolds are stacked above this scaffold. By forming, the same problem as described above was solved.

  Furthermore, the roof truss is formed of a flat plate-like frame foundation that is pre-assembled so as to have a predetermined height, and a steel plate fixed to the upper surface of the frame foundation, thereby solving the above-mentioned problem. did.

  Moreover, the above-mentioned subject was similarly solved by adopting a universal steel plate material or a scaffold board material etc. as a steel plate of a roof truss.

  In addition, the method for constructing the curing facility for the lower equipment existing in the vicinity of the high-rise structure according to the present invention includes a surrounding leg portion surrounding the side wall of the lower equipment so as to have a height exceeding the ceiling portion of the lower equipment. And a step of placing a roof truss formed by fixing a steel plate on the upper surface of a pre-assembled flat-plate-like frame base portion on the upper portion of the go leg portion. Solved.

  In addition, the step of installing the surrounding leg portion surrounding the side wall of the lower equipment so as to have a height exceeding the ceiling portion of the lower equipment is a predetermined height so as to surround the side wall of the lower equipment in the lower layer portion of the lower equipment. The above-mentioned problem was solved by comprising the steps of assembling the scaffolds of the above and a step of stacking a plurality of pre-assembled framework scaffolds on the scaffolds.

  The curing facility of the lower equipment existing in the vicinity of the high-rise structure according to the present invention is limited to the direction in which the unloading work of the weight dismantled material when the high-rise structure is demolished is not on the upper side of the lower equipment. It is assumed that sufficient fall prevention measures will be implemented for high-rise structures.

  In other words, the unloading work of heavy demolition is limited to the direction that is not on the upper side of the lower equipment to prevent the heavy demolition from falling on the lower equipment, and a vertical net is installed around the chimney etc. It is based on the premise that sufficient fall prevention measures have been implemented to prevent the situation where lightweight dismantled items fall into the lower equipment.

  However, when assembling the scaffold for construction along the high-rise structure to be dismantled (including dismantling), the clamp material used for assembling the scaffold may fall. From the upper side, it is composed of a surrounding leg installed so as to surround the side wall of the lower equipment and a roof truss placed on the upper part of the surrounding leg so as to have a height exceeding the ceiling part of the lower equipment. Even if the clamp material or the like has fallen, it is received by the roof truss to prevent the occurrence of damage to the lower equipment.

  In addition, in the present invention, by limiting the fallen objects to the lower equipment to the clamp material, it is not necessary to configure the members constituting the curing facility of the lower equipment with strong heavy objects, and curing installation (dismantling) work is performed. , Can proceed quickly and safely.

  In addition, orders for custom-made materials due to the increased weight of the curing material are eliminated, and it is not necessary to always use a large construction heavy machine for the installation (disassembly) of the heavy curing material. It can be greatly reduced.

  In addition, in the lower leg portion of the lower equipment, the go leg part is constructed by assembling a scaffold with a predetermined height so as to surround the side wall of the lower equipment, and a plurality of pre-assembled framework scaffolds are stacked above this scaffold. Since it is formed, the go leg can be completed within a short period of time.

  In addition, the scaffolds are assembled directly in the lower part of the lower equipment, and the framework scaffolds that are assembled in advance and united are piled up at a certain high part. By dividing the assembly work of the scaffold in this way, the number of work at high places is reduced and the safety of construction is ensured. In addition, quick construction as a whole is possible.

  Furthermore, since the roof truss is formed of a flat plate-like frame foundation that is pre-assembled to have a predetermined height and a steel plate fixed to the upper surface of the frame foundation, Even when the clamp member or the like has fallen, it can be reliably received.

  Moreover, the steel plate of a roof truss should just have thickness which can endure the drop impact of comparatively lightweight things, such as a clamp material. For example, when a scaffold plate material is used as the steel plate of the roof truss, even if the clamp material falls from the top of the chimney having a height of 85 meters due to this scaffold plate material, It is possible to reliably receive and prevent the occurrence of a situation where the clamp material falls on the lower equipment.

  In the present invention, a method for designing a steel structure defined in “Structure, Impact Behavior and Design Method (Japan Society of Civil Engineers)” in the process of examining various documents in order to select a curing material constituting a curing facility ( If calculation formula based on Stanford formula, BRL formula) is used, rough calculation such as not penetrating if steel plate of what thickness is used as the curing steel plate on the lower curing object for the falling object from high place is possible This makes it possible to determine the steel plate thickness for falling objects from high places, and to calculate the steel plate thickness required for the lower curing material.

  Then, by narrowing down the fallen objects during dismantling of the high-rise structure to clamp materials (scaffolding fixtures ... having a weight of about 1 kg), if the steel sheet has a thickness of 0.62 mm or more, the height of 85 meters From this, it has been found that even when the clamp material has dropped, it does not penetrate the steel plate.

  Therefore, it was decided to select a curing material based on a universal steel plate material or steel scaffold plate material which is a general-purpose temporary steel material having a thickness of 1.2 mm or more. In this way, by using lightweight steel as the curing material, the weight of the temporary steel used for the entire curing work is reduced, and the risk of disaster occurrence during the curing (dismantling) work and curing period is reduced. is there. In addition, the temporary use of curing materials will be promoted, reducing the material cost and the use of large construction heavy machinery.

  In addition, the method for constructing the curing facility for the lower equipment existing in the vicinity of the high-rise structure according to the present invention includes a surrounding leg portion surrounding the side wall of the lower equipment so as to have a height exceeding the ceiling portion of the lower equipment. And a step of placing a roof truss formed by fixing steel plates on the upper surface of a prefabricated flat-plate-like frame base on the upper part of the go leg. The construction cost can be greatly reduced.

  In addition, the step of installing the surrounding leg portion surrounding the side wall of the lower equipment so as to have a height exceeding the ceiling portion of the lower equipment is a predetermined height so as to surround the side wall of the lower equipment in the lower layer portion of the lower equipment. And a step of stacking a plurality of pre-assembled framework scaffolds on the scaffold. By separating the assembly work of the scaffolds in this way, the number of work at high places is reduced, the safety of construction is ensured, and overall construction can be done quickly.

  Furthermore, since a very heavy lining plate is not placed above the lower equipment as in the prior art, the surrounding leg portion can be formed by a general scaffold.

  Further, since the roof truss is relatively light, there is no possibility that a part of the constituent members collapses and damages the lower equipment.

It is a perspective view which shows the structure of the scaffold assembled | assembled directly in the low-rise part of a lower installation. It is an expansion perspective view which shows the structure of the scaffold assembled | assembled directly in the low-rise part of a lower installation. It is a perspective view which shows the structure of the frame scaffold assembled beforehand on the ground. It is a perspective view which shows the structure of the flat-plate-shaped frame foundation part which comprises a roof truss. It is an expansion perspective view which shows the structure of the flat-plate-like frame foundation part which comprises a roof truss. It is a perspective view which shows the structure of the roof truss provided with the flat-plate-shaped frame foundation part and the steel plate fixed to the upper surface of a frame foundation part. It is a perspective view which shows the state which installed the scaffold assembled directly in the predetermined position in the low-rise part of a lower installation. It is a perspective view which shows the state which installed the other scaffold assembled | assembled directly in the low-rise part of a lower installation at an angle of about 90 degree | times. It is a perspective view which shows the state which installed the other scaffold assembled | assembled directly in the low-rise part of a lower installation at the angle of about 90 degree | times further. It is a perspective view which shows the state which assembled the scaffold of predetermined | prescribed height so that the side wall of a lower installation may be surrounded in the low-rise part of a lower installation. It is a perspective view which shows the state which has lifted the frame scaffold piled up on the existing scaffold using a crane etc. FIG. It is a perspective view which shows the state which piled up the framework scaffold on the existing scaffold. It is a perspective view which shows the state which piled up the frame scaffold continuously on the existing scaffold, and surrounded the side wall of the intermediate part of a lower installation. It is a perspective view which shows the state which has lifted the other framework scaffold piled up on the existing framework scaffold using a crane etc. FIG. It is a perspective view which shows the state which piled up another framework scaffold on the existing framework scaffold. A perspective view showing a state in which the lower frame is surrounded by stacking other frame scaffolds on the existing frame platform, surrounding the lower facility so as to have a height exceeding the ceiling of the lower facility, and the surrounding leg is completed. It is. It is a perspective view which shows the state which has arrange | positioned the cloth board on the frame scaffold, in order to arrange | position several predetermined | prescribed H-shaped steel at equal intervals on the upper part of a go leg. It is a perspective view which shows the state which lifts a roof truss using a crane etc. and mounts a roof truss on the upper part of a go leg part. It is a perspective view which shows the state which lifted the roof truss using the crane etc. and mounted the roof truss on the upper part of the go leg part. When the lower equipment is installed side by side, go legs are formed by frame scaffolding in each lower equipment, and a roof truss is placed on the upper part of each go leg to complete tank curing facilities individually. It is a perspective view which shows the structure made to do. It is a side view which shows the structure of the curing facility of the lower equipment in the past. It is a top view which shows the structure of the curing facility of the lower equipment in the past.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
The curing facility 1 of the lower equipment T existing in the vicinity of the high-rise structure according to the present invention is such that the unloading work of the heavy weight demolished material when the high-rise structure is demolished is not on the upper side of the lower equipment T. In addition to being limited, it is assumed that sufficient fall prevention measures will be implemented for high-rise structures.

  As shown in FIG. 19 and FIG. 20, the curing facility 1 of the lower equipment T is a lower equipment T, for example, an enclosure installed so as to surround the side wall of the tank so as to have a height exceeding the ceiling portion of the tank. It comprises a leg 2 and a roof truss 3 placed on top of the go leg 2.

  Hereinafter, the lower equipment T is described as a tank, but the object of the invention is not limited to the tank, and the lower equipment T includes other structures such as piping, warehouses and offices for carrying fuel oil and water. Widely including etc.

  As shown in FIGS. 1 and 2, the go leg 2 constituting the tank curing facility 1 has a lower equipment T in a lower part of T in which a plurality of predetermined H-shaped steels are arranged at equal intervals on the upper part of the go leg. As shown in FIG. 3, a scaffold 5 having a predetermined height that is directly assembled so as to surround the side wall and a plurality of pre-assembled framework scaffolds 50 that are stacked on the scaffold 5 are formed.

  As shown in FIG. 1 and FIG. 2, the scaffold 5 that is directly assembled on the ground and surrounds the side wall of the lower equipment T, for example, has the scaffold units 6, 7, and 8 stacked in a three-tiered manner. Are formed to have a predetermined length.

  The lower scaffold unit 6 has two struts 9 fixed by a reed 10. Further, a plurality of fixed two support columns 9 are juxtaposed at equal intervals, and a cross-shaped diagonal member 11 is attached to continuously fix the two support columns 9 together.

  Moreover, the jack base part 12 is provided in the lower end part of two support | pillars 9 which comprise the lower scaffold unit 6. The jack base unit 12 includes, for example, a rotation operation unit having a handle. The jack base portion 12 makes it possible to adjust the unevenness when assembling a scaffold around the lower equipment T.

  A female screw is provided on the inner peripheral surface of the rotation operation unit. In addition, a rod-like member fixed to the square ground plate 13 is attached to the rotation operation unit so as to be able to advance and retreat. The rod-shaped member is provided with a male screw on the proximal end side, and the male screw of the rod-shaped member is screwed into a female screw provided on the inner peripheral surface of the rotation operation unit, and the rod-shaped member is attached to the rotation operation unit. It is attached to move freely.

  Further, a columnar protruding piece is provided at the upper end of the two support columns 9. The protruding piece is formed to have a smaller diameter than the diameter of the support column 9 itself.

  Since the middle scaffold unit 7 and the upper scaffold unit 8 are basically formed in the same manner as the lower scaffold unit 6, the same components are denoted by the same reference numerals, and detailed description thereof will be given. Omitted.

  As a difference, the jack base portion 12 does not exist at the lower end portions of the two struts 9 of the middle stage scaffold unit 7, and a predetermined mounting hole is provided. Then, the protruding pieces of the two struts 9 constituting the lower scaffold unit 6 having the jack base portion 12 are inserted into the mounting holes of the two struts 9 of the middle scaffold unit 7, and the lower scaffold The middle scaffold unit 7 is stacked on the unit 6.

  In addition, work cloths 14 are fixed on the reeds of the lower scaffold unit 6 and the middle scaffold unit 7.

  Further, the upper stage scaffold unit 8 is formed in the same manner as the middle stage scaffold unit 7 except that the cloth board 14 does not exist, and the protruding pieces of the two struts 9 constituting the middle stage scaffold unit 7 are provided. The upper scaffold unit 8 is stacked on the middle scaffold unit 7 by being inserted into the mounting holes of the two support columns 9 of the upper scaffold unit 8. A columnar protruding piece 15 is provided at the upper end of the two struts 9 constituting the upper scaffold unit 8.

  Then, the framework scaffold 50 (scaffold units 6, 7, 8) shown in FIG. 3 is stacked on the scaffold 5 (scaffold units 6, 7, 8) assembled and installed directly on the ground. The framework scaffold 50 (scaffold units 6, 7, 8) is assembled in advance and unitized.

  The framework scaffold 50 (scaffold units 6, 7, 8) is basically formed in the same manner as the scaffold 5 (scaffold units 6, 7, 8) that are assembled and installed directly on the ground. Detailed description will be omitted by attaching the same reference numerals.

  The difference is that in other framework scaffolds 50 (scaffold units 6, 7, 8), the jack base portion 12 does not exist at the lower ends of the two struts 9 of the lower scaffold unit 6, Mounting holes are provided.

  The projecting pieces 15 of the two struts 9 constituting the scaffold 5 (scaffold units 6, 7, 8) that are assembled and installed directly on the ground are replaced with the two scaffold scaffolds 50 (scaffold units 6, 7, 8). Another frame scaffold 50 (scaffold unit 6, 7, 8) is stacked on the scaffold 5 (scaffold unit 6, 7, 8) installed on the ground by inserting it into the mounting hole of the column 9.

  In addition, the protruding pieces 15 of the two struts 9 constituting the framework scaffold 50 (scaffold unit 6, 7, 8) are connected to the two struts 9 of the other framework scaffold 50 (scaffold unit 6, 7, 8). Another frame scaffold 50 (scaffold units 6, 7, 8) is further stacked on the frame scaffold 50 (scaffold units 6, 7, 8) by inserting into the mounting holes.

  As shown in FIGS. 4 and 6, the roof truss 3 placed on the upper portion of the go leg portion 2 includes a flat plate-like frame foundation portion 3A that is assembled in advance so as to have a predetermined height, and a frame foundation portion. It is formed of a steel plate 3B fixed to the upper surface of 3A.

  As shown in FIGS. 4 and 5, the frame base portion 3 </ b> A is configured by juxtaposing a plurality of horizontally formed frame bodies 20 at predetermined intervals and connecting the frame bodies 20 to each other. .

  Each frame 20 is provided with a vertical member 22 and a diagonal member 23 continuously between two long horizontal frames 21. In addition, hanging rods 24 are fixed to both ends of the two horizontal frames 21. Circular contact members 25 are provided at both upper and lower ends of the hanging rod 24.

  Then, as shown in FIG. 5, in the adjacent individual frame bodies 20, the hanging rods 24 are connected to each other by a vertical brace 26 formed by intersecting diagonal members. Further, the lateral frames 21 of the two frame bodies 20 located on the outer side are connected to each other by a horizontal brace 27 formed by intersecting diagonal members.

  Furthermore, there are two intermediate frame bodies 20 between the two frame bodies 20 located on the outer side, but basically all the frame bodies 20 are formed. The two outer frames 20, the middle two frames 20, and the two outer frames 20 are connected to each other through connecting frames 28 and 29 having a predetermined length for continuously fixing the horizontal frames 21 to each other. Are fixed at regular intervals.

  The connection frames 28 and 29 intersect at a predetermined position and partially form a horizontal brace.

  On the other hand, as shown in FIG. 6, the steel plate 3B fixed to the upper surface of the frame base portion 3A is formed to have a thickness of approximately 1.2 millimeters, and a plurality of rectangular plate pieces are individually placed thereon. The frame base portion 3A is fixed so as to cover the entire upper surface.

  Assuming that the steel plate 3B is dropped from the uppermost part of the chimney having a height of 85 meters, if the steel plate 3B is cured with the steel plate 3B having a thickness of 0.62 mm, a calculation result that does not penetrate is obtained. For this reason, as the steel plate 3B, a temporary steel material (universal steel plate material or steel scaffold plate material) having a thickness of 1.2 mm, which is generally used in construction work or the like, was used.

  Below, the construction method of the curing facility 1 of the lower equipment T which exists in the vicinity of a high-rise structure is demonstrated.

  In this construction method, a step of installing the surrounding leg 2 surrounding the side wall of the lower facility T so as to have a height exceeding the ceiling portion of the lower facility T, and a flat assembled in advance on the upper portion of the surrounding leg 2 are provided. It consists of a step of placing a roof truss 3 formed by fixing a steel plate 3B on the upper surface of a plate-like framework base 3A.

  Further, the step of installing the surrounding leg portion 2 surrounding the side wall of the lower equipment T so as to have a height exceeding the ceiling portion of the lower equipment T surrounds the side wall of the lower equipment T in the lower layer portion of the lower equipment T. And a step of assembling a scaffold 5 (scaffold units 6, 7, 8) of a predetermined height on a plurality of framework scaffolds 50 (scaffold units) assembled in advance on the scaffold 5 (scaffold units 6, 7, 8). 6 ・ 7 ・ 8).

  Specifically, as shown in FIG. 7, the scaffold 5 (scaffold units 6, 7, 8) is directly assembled on the ground around the tank.

  Next, as shown in FIG. 8, the other scaffolds 5 (scaffold units 6, 7, 8) are assembled at an angle of about 90 degrees with respect to the scaffold 5 (scaffold units 6, 7, 8).

  Next, as shown in FIG. 9, another scaffold 5 (scaffold unit 6, 7, 8) is assembled at an angle of about 90 degrees with respect to the scaffold 5 (scaffold unit 6, 7, 8). In addition, as shown in FIG. 10, a plurality of scaffolds 5 (scaffold units 6, 7, 8) surround the side wall of the tank near the ground so as to form a substantially rectangular frame.

  Next, as shown in FIG. 11, the framework scaffold 50 (scaffold unit 6, 7, 8) is lifted using a crane or the like, and as shown in FIG. 12, the existing scaffold 5 (scaffold unit 6, 7, 8). Stack the scaffolding 50 (scaffolding units 6, 7, 8) on top of each other.

  Next, the other framework scaffold 50 (scaffold units 6, 7, 8) is lifted using a crane or the like, and the framework scaffold 50 (scaffold units 6, 7, 8) is placed on the existing scaffold 5 (scaffold units 6, 7, 8). -8) is continuously piled up so that the side wall of the middle part of the tank is surrounded as shown in FIG.

  Next, as shown in FIG. 14, the framework scaffold 50 (scaffold units 6, 7, 8) is lifted using a crane or the like, and as shown in FIG. 15, the existing framework scaffold 50 (scaffold units 6, 7, 8). ) Frame scaffolding 50 (scaffolding units 6, 7, 8).

  Next, the other scaffolding 50 (scaffolding units 6, 7, 8) is lifted using a crane or the like, and the framework scaffolding 50 (scaffolding unit 6, 7-8) is placed on the existing framework scaffolding 50 (scaffolding units 6, 7, 8). As shown in FIG. 16, the tank is surrounded by a plurality of scaffolds 5 and frame scaffolds 50 so as to surround the tank so as to have a height exceeding the ceiling of the tank. Complete 2

  Next, as shown in FIG. 17, the cloth plate 30 is arranged on the frame scaffold 50 (scaffold units 6, 7, 8), and a plurality of predetermined H-shaped steels are arranged at equal intervals on the upper part of the surrounding leg 2. .

  Next, as shown in FIG. 18, the roof truss 3 is lifted by using a crane or the like, and the roof truss 3 is placed on a plurality of H-shaped steels arranged at the upper part of the surrounding leg 2 as shown in FIG. 19. Complete the tank curing facility 1.

  As shown in FIG. 20, when the tanks are arranged side by side, the surrounding leg portions 2 are made up of the plurality of scaffolds 5 and the framework scaffolds 50 so that each tank has a height exceeding the ceiling portion. The roof truss 3 is placed on each of the H-shaped steels that are completed and placed on top of each go leg 2, and the tank curing facility 1 is completed individually.

  It should be noted that the present invention is not limited to the above-described embodiment, and all the improvements and modifications within the scope that can achieve the object of the present invention are included in the present invention.

  The present invention, when performing a high place work to dismantle a high-rise structure for which sufficient anti-falling measures have been implemented, when a lower facility exists in the vicinity of the high-rise structure, the fall of flying objects from above In addition to being implemented as a curing facility for the lower equipment existing in the vicinity of the high-rise structure in consideration of the above, it can be widely used as a curing facility in various buildings and as a construction method thereof.

T ... Lower equipment 1 ... Curing facility for lower equipment 2 ... Go leg 3 ... Roof truss 3A ... Framework base 3B ... Steel plate 5 ... Framework scaffolding 50 ... Other framework scaffolds 6 ... Scaffolding unit 7 ... Scaffolding unit DESCRIPTION OF SYMBOLS 8 ... Scaffolding unit 9 ... Support | pillar 11 ... Diagonal material 12 ... Jack base part 13 ... Ground plate 14 ... Fabric board 15 ... Protruding piece 20 ... Frame body 21 ... Horizontal frame 22 ... Vertical material 23 ... Diagonal material 24 ... Hanging rod 25 ... Abutting member 26 ... Vertical brace 27 ... Horizontal brace 28 ... Connection frame 29 ... Connection frame 30 ... Fabric plate 100 ... Pillar material 101 ... Diagonal material 102 ... Horizontal material 104 ... Cover plate 105 ... Soundproof panel 103 ... Saddle section

Claims (6)

  Assuming that the work of unloading the heavy demolished material when the high-rise structure is dismantled is limited to the direction that is not on the upper side of the lower equipment, and that sufficient measures to prevent falling are applied to the high-rise structure. It is composed of a surrounding leg placed so as to surround the side wall of the lower facility so as to have a height exceeding the ceiling part of the lower part, and a roof truss placed on the upper part of the surrounding leg. Curing facility for lower equipment that exists in the vicinity of high-rise structures.   The go leg is formed by assembling a scaffold with a predetermined height so as to surround the side wall of the lower equipment in the lower part of the lower equipment, and stacking a plurality of pre-assembled framework scaffolds on this scaffold. The curing facility of the lower equipment which exists in the vicinity of the high-rise structure of Claim 1.   The roof truss is formed in the vicinity of a high-rise structure according to claim 1, wherein the roof truss is formed of a flat plate-like frame foundation part that is assembled in advance so as to have a predetermined height, and a steel plate fixed to the upper surface of the frame foundation part. Curing facility for lower equipment that exists in   The curing facility of the lower equipment which exists in the vicinity of the high-rise structure of Claim 3 which employ | adopts a universal steel plate material or a scaffold board | plate material etc. as a steel plate of a roof truss.   A step of installing a go leg that surrounds the side wall of the lower equipment so as to have a height exceeding the ceiling part of the lower equipment, and an upper surface of the prefabricated flat plate-like frame foundation on the upper part of the go leg. A method for constructing a curing facility for a lower equipment existing near a high-rise structure, comprising a step of placing a roof truss formed by fixing a steel plate.   The step of installing the surrounding leg part surrounding the side wall of the lower equipment so as to have a height exceeding the ceiling part of the lower equipment is a scaffold of a predetermined height so as to surround the side wall of the lower equipment in the lower part of the lower equipment. And a step of building a plurality of pre-assembled frame scaffolds on top of the scaffold, and a curing facility for a lower facility existing in the vicinity of the high-rise structure according to claim 5. Construction method.

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