JP3368360B2 - How to install a packer plate for equipment installation - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a packer plate for installing equipment on a foundation together with anchor bolts. 2. Description of the Related Art In order to install large and heavy equipment such as a generator and a turbine on a foundation, it is required to have sufficient installation stability and precise installation posture. Therefore, conventionally, a method has been adopted in which a packer plate is embedded around an anchor bolt, and the lower base of the device is accurately supported by the packer plate. In a conventional method of installing a packer plate together with anchor bolts, first, a template is attached to a support leg erected on a support to be buried, and anchor bolts are detachably supported thereon, and then concrete is poured. Then, after the template was removed, the concrete around the anchor bolt was partially dented and a packer plate was embedded and fixed in the debris via a grout material. [0003] However, the above-mentioned method comprises at least three steps: a concrete placing step for embedding anchor bolts, a concrete filing step, and a grouting step for embedding a packer plate. And an intermediate waiting time for solidification of the grout material. For this reason, there are problems that the number of steps is large and complicated, and that the period of construction is long. Also, it has been difficult to accurately and horizontally install a plurality of packer plates at accurate positions around the anchor bolts. Therefore, an object of the present invention is to solve such a problem in the conventional method. [0004] That is, the present invention relates to a method of installing a packer plate for installing equipment near an anchor bolt of a foundation, and a method of installing a concrete block (12) in advance.
The metal packer plate (13) is on top of the
Concrete blocks embedded to be exposed
A step of preparing a packer plate (13) with (12),
Foundation slab (1) Concrete mold for top or ceiling formation
On the frame (hereinafter referred to as “on the base slab”),
When the frame-shaped buried support part (2) is installed with glue steel etc.
In both cases, from the lower side of the buried support (2)
And place the lower reinforcement (4) above the buried support (2).
Placing parallel crosses listed muscle consisting Rebar (5), before
A support (6) is erected on the buried support (2), a template (7) is attached to the support (6), and the upper end of the anchor bolt (8) is detachably supported on the template (7). together, through a hanging has been connecting member (15) on the template (7), a step of detachably supporting the concrete blocks (12) with the packer plate (13), then, the anchor bolt (8) At least the following intermediate portion, the lower field muscles of the middle part below and the concrete block (12) of
(4) and listed sources (5) and buried supports (2),
Concrete (16) foundation slab to be buried at the same time
(1) a step of pouring on, then installation of the connecting member (15) and template (7) step and comprises a this <br/> and equipment installation for packer plate, characterized in that the removal of Method . According to the method of installing a packer plate for installing equipment according to the present invention, the number of steps is reduced because the concrete placing step is performed once, and the waiting time for solidifying the intermediate grout material as in the prior art is reduced. Since no time is required, the construction period is significantly reduced. Further, a plurality of packer plates can be accurately and horizontally installed at predetermined positions around the anchor bolt. As we do not put concrete twice more,
There are no fragile parts or boundaries of concrete that can cause cracking. Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a partial sectional view showing an intermediate step of installing a packer plate together with an anchor bolt by a method of the present invention, and FIG. 2 is a perspective view of the packer plate with a concrete block used in FIG. In FIG. 1, a buried support portion 2 is assembled on a base slab 1 by a steel material or the like in a frame shape. (Note that a concrete formwork for forming a ceiling surface may be used instead of the foundation slab.) Further, on the foundation slab 1, elongated rectangular receiving blocks 3 are arranged at appropriate intervals, and a cross-shaped girder is placed thereon. A lower reinforcement 4 is horizontally arranged above the base slab 1 by a predetermined space. [0007] On the buried support 2, a girder-shaped upward streak 5 is horizontally arranged. The buried support portion 2 has a plurality of supporting legs 6 erected thereabove. A template 7 is horizontally supported between the tops of the legs 6, and the template 7 is fixed to the legs 6 by means such as spot welding. The template 7 is provided with a plurality of insertion holes for supporting the anchor bolt 8 and a packer plate 13 provided around the anchor bolt 8 at predetermined positions. The anchor bolt 8 inserted into the insertion hole is supported by the template 7 by the nut 9. If necessary, the anchor bolt 8 can be temporarily fixed to the template 7 by spot welding or the like. Further, a packer plate 13 with a concrete block 12 is supported on the template 7 via a connecting member 15. The packer plate 13 with the concrete block 12 has a trapezoidal concrete block 12 whose bottom is enlarged as shown in FIG. 2 and a metal packer plate 13 embedded and fixed at the top thereof,
The packer plate 13 has a mounting portion such as a screw hole.
14 (two in the illustrated example) are provided. And a connecting member such as a bolt inserted through the insertion hole of the template 7.
The packer plate 13 with the concrete block 12 is supported on the template 7 by connecting the 15 to the mounting portion 14. If necessary, the connecting member 15 can be temporarily fixed to the template 7 by spot welding or the like. Reference numeral 16 denotes concrete cast to the middle of the concrete block 12. Then, the step of installing the packer plate 13 together with the anchor bolts 8 on the foundation will be described. First, the buried support 2 assembled in a frame shape made of angle type steel or the like is arranged on the foundation slab 1 and The receiving blocks 3 are arranged at appropriate intervals. Next, a lower reinforcement 4 formed of a reinforcing bar formed in a cross-girder shape is arranged on the receiving block 3, and a upper reinforcement 5 made of a cross-girder reinforcing bar is arranged above the buried support 2. Next, after the template 7 is horizontally supported between the tops of the plurality of supporting legs 6 above the buried support 2 by spot welding or the like, the anchor bolt 8 is inserted into the insertion hole of the template 7 and supported by the nut 9. Further, the connecting member 15 is inserted into the insertion hole of the template 7, and the packer plate 13 with the concrete block 12 prepared in advance is connected and hung there. Next, as shown in FIG. 1, concrete 16 is poured until the upper end of the concrete block 12 is slightly exposed, and after it is solidified, the nut 9 and the connecting member 15 are removed, and then the template 7 is removed. Note that the legs 6 protruding upward from the surface of the concrete 16 are cut and removed as necessary. Although the above description is an example in which two packer plates 13 with concrete blocks 12 are installed around one anchor bolt 8, a large number of packer plates 13 with concrete blocks 12 are usually arranged in parallel on the outer periphery of the equipment installation part. . In addition, a large number of anchor bolts 8 are usually required to install the equipment, but they can be installed sequentially or simultaneously by the above-described method. The buried support 2 and the template 7 for that purpose may be of a common type or a split type. The present invention has the above-described configuration.
Only one concrete casting process is required, which reduces the man-hours, and the time required for intermediate solidification of concrete (solidification of grout material) is not required and the construction period is significantly reduced. Further, a plurality of packer plates can be accurately and horizontally installed at predetermined positions around the anchor bolt.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view showing a stage in the middle of a process of installing a packer plate together with an anchor bolt according to the method of the present invention. FIG. 2 is a perspective view of a packer plate 13 with a concrete block 12 used in FIG. [Description of Signs] 1 Base slab 2 Buried support part 3 Receiving block 4 Lowering bar 5 Listing bar 6 Leg 7 Template 8 Anchor bolt 9 Nut 12 Concrete block 13 Packer plate 14 Mounting part 15 Connecting member 16 Concrete

Claims (1)

(57) [Claim 1] In a method for installing a packer plate for installing equipment near an anchor bolt on a foundation , a metal packing is previously attached to the top of a concrete block (12).
The car plate (13) is buried so that its top surface is exposed.
Packer press with embedded concrete block (12)
And a concrete mold for forming the base slab (1) or ceiling surface
On the frame (hereinafter referred to as “on the base slab”),
When the frame-shaped buried support part (2) is installed with glue steel etc.
In both cases, from the lower side of the buried support (2)
And place the lower reinforcement (4) above the buried support (2).
A step of arranging listed bars (5) consisting of cross-girder-shaped reinforcing bars, and erecting a support (6) on the buried support (2), and the support (6)
The template (7) is attached to the base, the upper end of the anchor bolt (8) is detachably supported on the template (7), and the connecting member (15) suspended from the template (7) is attached.
Through, a step of detachably supporting the concrete blocks (12) with the packer plate (13), then the following least an intermediate portion of the intermediate portion below and said concrete block (12) of the anchor bolt (8) But before
Underlisting (4) and Listing (5) and buried support (2)
It includes, based on concrete (16) as embedded simultaneously
A method of installing a packer plate for equipment installation, comprising: a step of casting on a foundation slab (1); and a step of removing the connecting member (15) and the template (7).