JP2010095850A - Base isolation expansion joint floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify installation steps and reduce cost by using the fewest parts of a base isolation expansion joint floor which is carried into a construction site. <P>SOLUTION: An expansion floor member installed between the gaps formed by recessing the upper surfaces of the skeletons of a base-isolation structure and a non-base-isolation structure includes a metal fixed frame, an end frame, and side frames provided to the outer peripheral parts. The expansion floor member is formed of a precast concrete board manufactured in a plant. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a floor seismic isolation expansion joint used for pedestrians and roadways and a structure of a floor panel member used for the seismic isolation expansion joint.

  The purpose of the present invention is to simplify the installation process by reducing the number of seismic isolation expansion joints to be carried into the construction site as much as possible. Also, like the conventional metal box type expansion floor, the metal box type After installing the floor formwork, fill the metal box with mortar to finish the expansion floor, or eliminate the process of tile and stone pasting to the floor formwork made of metal box through the mortar The present invention relates to a seismic isolation expansion joint that can save the labor of curing work and cleaning work for mortar filling in the field, and a structure of a floor member used for the seismic isolation expansion joint.

  Furthermore, an object of the present invention is to provide a so-called expansion joint floor that can be used in a roadway and has a large mass so as not to generate vibration and noise when passing through the vehicle, and can be easily increased in weight. The floor member of the expansion joint provides a seismic isolation expansion joint that can provide sufficient support strength even when installed between large clearances, and a floor member for the seismic isolation expansion joint.

  In seismic isolation buildings, the most important issue is the architectural response to the large deformation of buildings during an earthquake. This large deformation occurs between the ground and the building, and it is necessary to secure a clearance corresponding to the mutual movement between the base-isolated building and the non-base-isolated building that occurs in this case.

  In other words, the seismic isolation expansion joint floor that can cope with the mutual movement between the buildings is necessary in the most important part as the approach to the building on the flow line corresponding to the entrance and exit of people and cars from the outside of the building. Become.

  Thus, in recent buildings, the clearance between the seismic isolation building and the non-base isolation building tends to be widened due to the influence of the base isolation evolution.

Therefore, in the seismic isolation expansion joint, it is required to secure a clearance between the seismic isolation building and the non-base isolation building to cope with a large deformation between the frames. In particular, the floor member of the expansion joint is large and robust. For example, a floor expansion joint that does not generate vibration or noise when passing through a vehicle, a floor expansion joint that provides sufficient support strength even when installed between large clearances, and the expansion joint It is necessary to embody the floor panel member used in the construction.

  Japanese Unexamined Patent Application Publication No. 2003-129579 (hereinafter referred to as Patent Document 1) is a conventional example of a floor seismic isolation expansion joint that covers the clearance between the seismic isolation building and the non-base isolation building. It is disclosed.

  In the conventional example disclosed in Patent Document 1, it does not operate greatly with small shaking, and can be adapted to weighting by attaching finishing materials such as stone and tile to the surface of the joint plate in order to keep the appearance beautiful Provide an expansion joint.

  The invention of Patent Document 1 is an expansion joint that connects adjacent housings and covers the space between the housings. The cover material that covers the space between the housings and the upper surface of one of the housings are recessed, A storage portion for placing the storage portion side end portion, a connecting member that connects the cover material to the other housing so as to be movable at least in the depth direction of the housing gap, and a side that is provided on the back surface of the cover material and faces the storage member It is an expansion joint of the structure provided with the support member which has an inclined surface part.

  However, in the invention of Patent Document 1, the cover material body, the plate material, the connecting member, the support member, the mounting piece, the filler (mortar), the surface material (stone material and tile), the bracket when mounting is performed at the construction site. Installation work after placing frame materials, stoppers, height adjustment bolts / nuts, etc. at the construction site, and the number of parts constituting the expansion joint is large, making the installation work complicated and inefficient .

  Further, the invention of Patent Document 1 has a cover material body that constitutes a so-called metal box type expansion floor, and uses a stainless steel plate, a steel plate made of stainless steel, a flat bar, a channel, and an angle material to form a box-shaped floor. The structural material is formed into a mold shape, and the floor structure material is installed between large clearances. The mortar material that is filled in the box-type floor structure material later on the site plays a certain role as a structural material. For this reason, the stainless steel and steel structural materials use materials with a large plate thickness, flat bars with a large cross-sectional shape, channel materials, and angle materials, which also increases costs. It was.

  Further, in the invention of Patent Document 1, as a finishing process for the expansion joint, the finishing material such as stone or tile on the surface of the joint plate is used as a finishing process for the expansion joint on the cover material body constituting the metal box type expansion floor. After performing curing for mortar filling, the work is to fill the metal box with mortar and finish tile and stone through the mortar, naturally, There is a drawback in that the periphery of the expansion joint is soiled with an aqueous solution containing mortar, which necessitates cleaning work.

JP 2003-129576 A

  The problem to be solved by the present invention is to simplify the mounting process and reduce the cost by minimizing the number of parts of the seismic isolation expansion joint floor carried into the construction site.

In addition, the problem to be solved by the present invention is a process of filling a metal box with a mortar after installation or finishing a tile or stone through the mortar, like a conventional metal box type expansion floor. It is an object of the present invention to provide a seismic isolation expansion joint that eliminates the need for curing work and cleaning work for filling mortar and a floor member used for the seismic isolation expansion joint.

  Furthermore, the present invention provides a so-called weight-expandable expansion joint floor that is used in a roadway and has a large mass so as not to generate vibration or noise when passing through the vehicle. The floor is made of factory-produced precast concrete, and provides a base-isolated expansion joint and a floor member for the base-isolated expansion joint that can provide sufficient support strength even when installed between large clearances.

The present invention relates to a floor expansion joint for closing a clearance provided between a base body between a base-isolated building and a non-base-isolated building, and the upper surface of the base body between the base-isolated building and the non-base-isolated building is recessed. The floor member installed on the clearance is made of a precast concrete plate produced in a factory having a metal fixed frame material, a tip frame material, and a side frame material on the outer periphery, and is located on the outer periphery of the precast concrete plate. A plurality of hinges for wings are attached to the fixed frame material to be fixed, and each of the hinges for wings is attached to a fixed angle frame provided on the frame surface on the seismically isolated building side with the floor finishing plate material held on top. It can be fixed, and the safety plate is fixed to the front end of the front frame located on the outer periphery of the precast concrete plate so as to be rotatable with a plurality of hinges,
The safety plate can cover the mutual movement groove of the expansion joint at normal times, and a floor member made of pre-cast concrete board of the above-mentioned configuration is provided between the frame of the base-isolated building and the non-base-isolated building. The floor of the expansion joint is constructed between the clearances formed.

  Further, the present invention provides a floor expansion joint for closing a clearance provided between a frame between a base-isolated building and a non-base-isolated building, and an upper surface of the frame between the base-isolated building and the non-base-isolated building. The floor member that is recessed and constructed on the clearance is made of a precast concrete plate produced in a factory having a metal fixed frame member, a tip frame member, and a side frame member on the outer periphery, and the outer periphery of the precast concrete plate Wing eyenuts are attached to the fixed frame material positioned at the seismic building side by engaging with a plurality of floor plate positioning pins, and each of the wing eyenuts is fixed to the fixed angle frame. It is screwed to a spring bolt that protrudes through a joint hole, and is fixed in a state in which the floor member is attracted to the seismic isolation building side with the spring bolt. A safety plate is pivotally fixed to the tip of the tip frame material located on the outer periphery of the cast concrete plate with a plurality of hinges, and the safety plate can cover the mutual movement groove of the expansion joint during normal operation. The floor of the expansion joint was constructed by laying a floor member made of precast concrete board produced in the factory with the clearance between the seismic isolation building and the non-base isolation building. Features.

And another feature of the present invention is a floor expansion joint for closing the clearance provided between the frame of the base-isolated building and the non-base-isolated building,
A factory in which the upper surface of the frame of the base-isolated building and the non-base-isolated building is recessed and the floor member is installed on the clearance has a metal fixed frame member, a tip frame member, and a side frame member on the outer periphery. A plurality of bolts with springs for wings are attached to the fixed frame material that is made of production precast concrete plates and is located on the outer periphery of the precast concrete plates. It is inserted into the engagement hole of the guide plate inserted in the slide rail provided on the surface and can be connected via nuts, and it is fixed in a state where the floor member is attracted to the seismic isolation building side with a spring bolt. In addition, a safety plate is rotatably fixed to the front end portion of the front end frame member located on the outer peripheral portion of the precast concrete plate by a plurality of hinges. It is possible to cover the mutual movement grooves of expansion joints at normal times, and floor members made of pre-cast concrete plates of the above-mentioned configuration are provided between the seismic isolated building and the non-isolated building. The floor of the expansion joint was constructed between the clearances.

  Thus, according to the present invention, as a specific configuration for solving the above-described problems, a floor member made of a precast concrete plate is provided with a metal fixed frame material, a tip frame material, and a side frame material on the outer peripheral portion. A precast concrete plate in which aggregates and reinforcing bars are arranged at an arbitrary pitch on the inner side of the fixed frame member, the tip frame member, and the side frame member, and a stone or tile is formed on the surface of the precast concrete plate It is preferable that the decorative material is attached.

In the present invention, the floor member made of the precast concrete plate is provided with a metal fixed frame member, a tip frame member, and a side frame member on the outer periphery, and the fixed frame member, the tip frame member, and the side frame member. When aggregates and reinforcing bars are placed at an arbitrary pitch in the factory to produce precast concrete boards at the factory, a high nut with a lower part fixed to the aggregates arranged in the precast concrete board and an upper part of the high nuts A floor member made of a precast concrete plate is manufactured by embedding two or a plurality of bolt caps positioned to produce a precast concrete plate, removing the bolt cap of the high nut and screwing an eye bolt onto the high nut. It is preferable that the apparatus is constructed so that it can be lifted with a wire and transported by a machine or can be attached.

Furthermore, the present invention provides a floor expansion joint for closing a clearance provided between a frame between a base-isolated building and a non-base-isolated building, wherein the top surface of the frame between the base-isolated building and the non-base-isolated building is provided. The floor member that is recessed and laid on the clearance is made of a precast concrete plate produced in the factory having a metal fixed frame material, a tip frame material, and a side frame material at the outer periphery, and is located on the outer periphery of the precast concrete plate. A plurality of wing mechanisms are attached to the fixed frame material to be fixed, and each of the wing mechanisms can be fixed to the frame surface on the seismically isolated building side via a floor finishing plate, and the precast concrete A safety plate is fixed to the tip of the tip frame member located on the outer periphery of the plate so as to be rotatable by a plurality of hinges. It is possible to cover the mutual movement groove at all times, and the mutual movable tip side is recessed on the upper surface of the casing and placed on a sliding plate member made of stainless steel mirror surface member or Teflon coating material. It is preferable that it is a seismic isolation joint for floors corresponding to movement.

  Thus, according to the present invention, the seismic isolation expansion joint floor to be brought into the construction site is a precast concrete plate produced at the factory, thereby reducing the number of parts compared to the conventional floor assembly type metal box type expansion floor. It has become possible to simplify the mounting process and reduce costs by minimizing as much as possible.

  In addition, the present invention eliminates the process of filling a mortar in a metal box after installation or finishing a tile or stone through the mortar, like a conventional metal box type expansion floor. It is possible to provide a seismic isolation expansion joint that can save labor for curing and cleaning, and a floor member used for the seismic isolation expansion joint.

Further, the present invention can be manufactured with a large mass so as not to generate vibration and noise when passing through a vehicle when used in a roadway, and a so-called weighted or hardened expansion floor can be arbitrarily used in a precast concrete factory. It is possible to provide a low cost cost expansion joint floor because precast concrete formwork and reinforcing bars can be efficiently arranged in the production, and the expansion joint floor can be installed between large clearances. We have made it possible to provide seismic isolation expansion joints that provide sufficient support strength and floor members for the seismic isolation expansion joints.

The present invention relates to a floor expansion joint for closing a clearance provided between a base body between a base-isolated building and a non-base-isolated building, and the upper surface of the base body between the base-isolated building and the non-base-isolated building is recessed. The floor member installed on the clearance is made of a precast concrete plate produced in a factory having a metal fixed frame member, a tip frame member, and a side frame member on the outer periphery.

Thus, the fixed frame material positioned on the outer peripheral portion of the precast concrete plate is attached with a plurality of wing mechanisms such as a wing hinge and a wing eye nut, or a bolt with a wing spring, Each of the wing mechanisms can be fixed to a fixing bracket provided on the frame surface on the seismic isolation building side.

  And, the fixing brackets used for the floor member of the expansion differ in configuration depending on the shape of the wing mechanism, and when the fixing brackets are a plurality of hinges for wings, the respective wing hinges are for floor finishing. It can be fixed to the fixed angle frame provided on the frame surface on the seismic isolation building side with screws or welding while holding the plate material at the top.

  Further, in the case where the fixing bracket used for the floor member of the expansion is a wing eye nut engaged with a plurality of floor board positioning pins, each of the wing eye nuts is fixed on the body surface on the seismic isolation building side. It is screwed into a bolt with a spring protruding through an engagement hole of the angle frame, and is fixed in a state where the floor member is attracted to the seismic isolation building side with the bolt with spring.

  Furthermore, when a plurality of bolts with springs for wings are attached to the fixing bracket used for the floor member of the expansion, each of the bolts with springs for wings is a slide provided on the frame surface on the seismic isolation building side. Each of the guide plates inserted into the rail is inserted into an engagement hole of the guide plate and can be connected to each other via a nut. The floor member is secured to the seismically isolated building by a bolt with a spring.

In addition, a safety plate is rotatably fixed to the front end portion of the front end frame member located on the outer peripheral portion of the precast concrete plate on the other end side facing the fixed frame by a plurality of hinges. The support member is formed to have a reversely inclined shape in cross section, and is slidably mounted on the upper surface of the housing that is recessed by forming a flat sliding bottom surface at the end point of the reversely inclined shape portion.

Thus, according to the present invention, the safety plate can cover the mutual movement groove of the expansion joint in the normal state, and the floor member made of the precast concrete plate produced in the factory is separated from the seismic isolation building and the non-seismic isolation building. The floor of the expansion joint is constructed by laying on the clearance provided between the housings.

  FIGS. 1 to 7 illustrate a first embodiment of the present invention. FIG. 1 is a plan view showing an expansion joint floor portion of the present invention used in a roadway, for example, and FIG. 2 is a cross-sectional view of FIG. 3 is an enlarged plan view showing one floor panel member constituting the expansion joint floor, and FIG. 4 is a sectional explanatory view of FIG.

  1 to 4, 1 is a base-isolated building, 2 is a non-base-isolated building, 3 is a roadway on the base-isolated building side, 4 is a roadway on the non-base-isolated building side, and C is a base Clearance provided between the housings 5 and 6 between the seismic building 1 and the non-base-isolated building 2, 7 and 8 are expansion joint support portions recessed in the upper surfaces of the housings 5 and 6, and 9 is an expansion joint support portion. The expansion floor member 9 is an expansion floor member disposed between 7 and 8 and laid on the clearance C. The expansion floor member 9 includes a plurality of expansion floor members 9a, 9b, 9c.

  1 and 2, reference numeral 10 denotes a roadway side wall such as planting provided at the end of the expansion floor member. The roadside wall 10 has a shape protruding from the seismic isolation building 1. It has a structure that covers the gap of the clearance C other than the roadways 3 and 4.

  Thus, FIG. 3 is an enlarged plan view showing one floor member constituting the expansion joint floor member 9, FIG. 4 is a cross-sectional view of an essential part thereof, and the expansion joint floor member 9 is made of a metal such as stainless steel or steel. The outer peripheral portion 14 is formed by the fixed frame member 11, the tip end frame member 12, and the side surface frame members 13 a and 13 b, and the pre-cast concrete plate 15 produced in the factory using the outer peripheral portion 14 as a frame member. It is configured.

  In addition, a plurality of wing hinges 16a, 16b, and 16c are attached to the fixed frame member 11 located on the base-isolated building 1 side of the factory-produced precast concrete plate 15 by screws or welding. Each of the wing hinges 16a, 16b, and 16c is fixed to a fixed angle frame 27 (shown in FIG. 6) provided on the surface of the casing 5 on the fixed portion side through a floor finishing plate 34 (shown in FIG. 6). It is placed on the expansion joint support 7.

Further, in the first embodiment of the present invention, a safety plate 17 is provided with a plurality of hinges 18a, 18b at the distal end portion of the distal end frame member 12 located on the precast concrete plate 15 on the other end side facing the fixed frame member 11. 18c, the support member 19 of the distal end frame member 12 positioned below the safety plate 17 is formed to have an inversely inclined shape in cross section, and at the end point of the inversely inclined shape portion. It is slidably placed on the upper surface of the housing 6 that is formed in a concave shape by forming a flat sliding bottom surface (this state is shown in FIG. 6).

Thus, the first embodiment can cover the mutual movement groove 20 (shown in FIG. 2) of the expansion joint with the safety plate 17, and is free from the expansion floor member 9 made of the precast concrete plate 15 produced in the factory. The floor of the expansion joint is constructed by laying in a gap having a clearance C provided between the casings 5 and 6 of the seismic building 1 and the non-base-isolated building 2.

  Further, in Example 1, the expansion floor member 9 made of the precast concrete plate 15 is provided with a metal fixed frame member 11, a tip frame member 12, and side frame members 13 a and 13 b on the outer peripheral portion 14, As for the internal structure of the fixed frame member 11, the tip frame member 12, and the side frame members 13a and 13b, aggregates 21a, 21b, 21c... And reinforcing bars 22 are arranged at an arbitrary pitch as shown in FIG. A precast concrete board 15 is provided, and a seismic isolation expansion joint floor is provided in which stone or tile decorative materials 23a, 23b, 23c,... Are attached to the surface of the precast concrete board 15.

Further, in Example 1, the expansion floor member 9 made of the precast concrete plate 15 is provided with a metal fixed frame member 11, a tip frame member 12, and side frame members 13 a and 13 b on the outer peripheral portion 14, The fixed frame member 11, the tip frame member 12, and the side frame members 13a and 13b are provided with aggregates 21a, 21b, 21c,... In production, it efficiently provides a seismic isolation joint floor with weight and strength suitable for roadways.

In Example 1 shown in FIG. 4, high nuts 24a and 24b fixed by welding to aggregates 21a and 21b arranged in a precast concrete plate 15 by welding are provided, and upper portions of the high nuts 24a and 24b are provided. The precast concrete plate 15 is manufactured by screwing bolt caps 25a and 25b into the inner wall.

Then, the bolt caps 25a and 25b of the high nuts 24a and 24b are removed, and the eye bolts 26a and 26b are screwed onto the high nuts 24a and 24b to lift the expansion floor member 7 made of the precast concrete plate 15 with a wire or the like. Thus, an expansion joint floor member 9 is provided which can be transported by machine and can be attached.

Thus, FIG. 5 to FIG. 7 illustrate a floor seismic isolation expansion joint using the above-described expansion joint floor member 9 of the present invention, and FIG. FIG. 6 is a perspective explanatory view showing the expansion joint support portions 7 and 8, and FIG. 6 shows a state where the expansion floor member 9 made of the precast concrete plate 16 is placed on the expansion joint support portions 7 and 8 to complete the seismic isolation joint for the floor. FIG. 7 is an expansion joint drive explanatory view showing a state when the clearance C in FIG. 6 moves to C ′ due to an earthquake.

5 to 7, the same components as those in FIGS. 1 to 4 are denoted by the same reference numerals. In FIG. 5, reference numerals 5 and 6 denote housings, and 7 and 8 denote expansion joint support portions.

  A fixed angle frame 27 for fixing the expansion floor member 9 is fixed to the expansion support portion 7 with anchor bolts 29a, 29b, 29c... Via height adjustment liners 28a, 28b, 28c. Has been.

  In addition, the expansion support portions 8 facing each other with a clearance C are provided with slide plate members 32a and 32b made of stainless steel mirror surfaces on the angle bases 30 and 31, respectively. A space between the housings 5 and 6 on which the member 9 is placed is configured as shown in a perspective view of FIG.

5 is a joint rubber packing 33. The joint rubber packing 33 is a vehicle on the seismic isolation building side when the wing hinges 16a, 16b, 16c are fixed to the fixed angle member 27. This is to cover a gap formed between the road 3 and the expansion floor member 9.

Thus, in the present invention, as shown in FIG. 6, the expansion joint support portions 7 and 8 for the base-isolated building 1 and the non-base-isolated building 2 are provided with the upper surface between the housings 5 and 6 being recessed. The expansion floor member 9 installed in the clearance C is composed of a precast concrete plate 15 produced in a factory having a metal fixed frame member 11, a tip frame member 12, and side frame members 13a and 13b and an outer peripheral portion 14. A plurality of wing hinges 16a, 16b, 16c are attached to the fixed frame member 11 located on the outer peripheral portion 14 of the precast concrete plate 15, and the wing hinges 16a, 16b, 16c are Mounting holes 35a, 35b, 3 in the fixed angle frame 27 provided on the frame surface 5 on the fixed part side in the base-isolated building 1 through the floor finishing plate 34 and the joint rubber packing 33. It is fixed rotatably at screws or the like through the c · · ·.

In addition, a safety plate 17 is rotatably fixed to a distal end portion of the distal end frame member 12 located on the outer peripheral portion 14 of the precast concrete plate 15 by a plurality of hinges 18a, 18b, 18c. It is possible to cover the mutual movement groove 20 of the expansion joint, and the mutual movable tip side is placed on the sliding plate members 32a and 32b made of stainless steel mirror surface members with the upper surface of the housing 6 being recessed. We provide a seismic isolation joint for floors that is capable of mutual movement during an earthquake.

The sliding plate members 32a and 32b made of a stainless steel mirror member can be formed as a sliding plate member 32a and 32b by attaching a sliding plate such as Teflon on the surface of the steel member.

  Thus, the present invention relates to a floor expansion joint for closing the clearance C provided between the casings 5 and 6 of the base-isolated building 1 and the non-base-isolated building 2. Expansion joint support portions 7 and 8 are provided by recessing the upper surfaces of the casings 5 and 6 with the seismic isolation building 2.

The expansion floor member 9 installed on the clearance C is formed from a precast concrete plate 15 produced in a factory having a metal fixed frame member 11, a tip frame member 12, and side frame members 13 a and 13 b on the outer peripheral part 14. A plurality of wing hinges 16a, 16b, and 16c are attached to the fixed frame member 11 located on the outer peripheral portion 14 of the precast concrete board 15, and the wing hinges 16a, 16b, and 16c are provided on the floor. The finishing plate member 34 is held at the upper part and can be fixed to a fixed angle frame 27 provided on the surface of the frame 5 on the seismic isolation building 1 side.

A safety plate 17 is rotatably fixed to the front end portion of the front end frame member 12 located on the outer peripheral portion of the precast concrete plate 15 by a plurality of hinges 18a, 18b, 18c. Thus, the gap of the mutual movement groove 20 in the normal time of the expansion joint can be covered, and the support member 19 of the distal end frame member 12 located at the lower portion of the safety plate 17 is formed to have an inversely inclined shape in cross section. A flat sliding bottom surface is formed at the end point of the inclined shape portion and is slidably mounted on the sliding plate 32a.

Therefore, the expansion floor member 9 made of the precast concrete plate 15 produced in the factory having the above-described structure is installed in the clearance C between the bases 5 and 6 of the base-isolated building 1 and the non-base-isolated building 2. If the clearance C in FIG. 6 moves to C ′ as shown in FIG. 7 due to the earthquake, the support member 19 of the tip frame member 12 positioned below the safety plate 17 is made of a stainless steel mirror surface member or Teflon coating material. The expansion floor member 9 can be slid on the expansion support portion 8 in response to the mutual movement at the time of an earthquake. Further, as shown in FIG. No. 16a, 16b, 16c are rotated to jump up the expansion floor member 9 so that the expansion joint part can be destroyed or the seismic isolation building 1 Seismic Isolation building 2 is intended to provide a floor for seismic isolation expansion joints to prevent from being destroyed.

  8 to 12 show a second embodiment of the present invention. FIG. 8 is a plan view for explaining an expansion joint floor portion for explaining the second embodiment. FIG. 9 is a plan view of the expansion floor member 9 of the second embodiment. FIG. 10 is a plan view for explaining a floor member fixing bracket installed in the AA portion of FIG. 8, FIG. 11 is an enlarged cross-sectional view of the main part of FIG. 10, and FIG. It is drive explanatory drawing.

  8 to 12, the same components as those in FIGS. 1 to 7 are denoted by the same reference numerals. In FIGS. 8 and 9, 1 is a base-isolated building, 2 is a non-base-isolated building, Is the roadway on the seismic isolation building side, 4 is the roadway on the non-base isolation building side, and C is the clearance provided between the frames 5 and 6 between the base isolation building 1 and the non-base isolation building 2 , 7 and 8 are expansion joint support portions recessed in the upper surfaces of the casings 5 and 6, and 9 is an expansion floor member disposed between the expansion joint support portions 7 and 8 and laid on the clearance C. The expansion floor member 9 is composed of a plurality of expansion floor members 9a, 9b, 9c (not shown) as shown in FIG. 1, but FIG. 8 is a partially enlarged view of one expansion floor member 9. Show.

  8 and 9, reference numeral 10 denotes a roadway side wall such as planting provided at an end of the expansion floor member. The roadside wall 10 has a shape protruding from the seismic isolation building 1. It has a structure that covers the gap of the clearance C other than the roadways 3 and 4.

Thus, the expansion joint floor member 9 shown in FIG. 8 is a floor expansion joint for closing the clearance provided between the housings 3 and 4 between the base isolation building 1 and the non-base isolation building 2. The floor member 9 is a floor member 9, and the floor member 9, which is provided on the clearance by recessing the upper surfaces 3 and 4 of the seismic isolation building 1 and the non-base isolation building 2, is a metal fixed frame member 11, It is comprised by the precast concrete board 15 of the factory production which has the front-end | tip frame material 12 and the side frame material 13 in the outer peripheral part 14. FIG.

In the second embodiment of the present invention, floor member fixing brackets 36a, 36b, 36c,... Are provided on the fixed frame member 11 of the precast concrete plate 15 in place of the wing hinges 16a, 16b, 16c of the first embodiment. The floor member fixing brackets 36a, 36b, 36c,... Comprise a floor plate positioning pin 37 and a wing eyenut 38 with which the floor plate positioning pin 37 engages.

A-A in FIG. 8 indicates the position of one of the plurality of floor member fixing brackets 36, and a floor plate positioning pin 37 and a wing eyenut 38 are installed at the position of the floor member fixing bracket 36. Has been.

FIG. 10 is an enlarged plan view of the AA portion in FIG. 8, and the plane portion is shown as a cross-sectional view in FIG.

10 and 11, a wing eyenut 38 is attached to the fixed frame member 11 positioned on the outer peripheral portion 14 of the precast concrete plate 15 by engaging with a floor plate positioning pin 37, and the wing eyenut 38 is seismically isolated. The expansion floor member 9 is seismically isolated by being screwed into a bolt 40 with a spring projecting through an engagement hole 39 of a fixed angle frame 27 installed on the frame surface 3 on the building 1 side. It is fixed in a state attracted to one side.

In addition, a safety plate 17 is fixed to the front end portion of the front end frame member 12 located on the outer peripheral portion 14 of the precast concrete plate 15 so as to be rotatable by a plurality of hinges as in FIG. Thus, the expansion groove member 9 made of a precast concrete plate 15 manufactured in the factory having the above-described structure can be covered with the expansion joint 20 at the normal time of the expansion joint. The floor of the expansion joint is constructed in the gap C of the clearance C provided between the two (see FIG. 4).

  Thus, in the second embodiment of the present invention, when the earthquake occurs, as shown in FIG. 12, the expansion floor member 9 can be moved up and down, and the expansion floor member 9 is flipped up to expand the expansion joint. The present invention provides a floor seismic isolation joint that prevents parts from being destroyed and the seismic isolation building 1 and non-base isolation building 2 from being destroyed.

Further, the expansion floor member 9 is screwed to a bolt 40 with a spring projecting through the engagement hole 39 of the fixed angle frame 27, and the expansion floor member 9 is always attached to the base isolation structure 1 with the bolt 40 with a spring. Since it is fixed in a state of being pulled to the side, there is very little clearance between the fixed frame member 11 and the floor finishing plate 34, and high-heel shoes such as shoe heels, pebbles, and dirt are joints. I was able to eliminate room for entry.

  FIGS. 13 to 16 show a third embodiment of the present invention, FIG. 13 is a plan view illustrating an expansion joint floor for explaining the third embodiment, and FIG. 14 is an expansion floor installation portion of the third embodiment. FIG. 15 is an enlarged cross-sectional view of a main part for explaining a floor member fixing bracket installed in the BB portion of FIG. 13, and FIG. 16 is a drive explanatory view of FIG.

13 to 16, the same components as those in FIGS. 1 to 7 are denoted by the same reference numerals. In FIGS. 13 and 16, 1 is a base-isolated building, 2 is a non-base-isolated building, Is the roadway on the seismic isolation building side, 4 is the roadway on the non-base isolation building side, and C is the clearance provided between the frames 5 and 6 between the base isolation building 1 and the non-base isolation building 2 , 7 and 8 are expansion joint support portions recessed in the upper surfaces of the casings 5 and 6, and 9 is an expansion floor member disposed between the expansion joint support portions 7 and 8 and installed in the clearance C. The expansion floor member 9 is constituted by a plurality of the expansion floor members 9a, 9b, 9c... As shown in FIG. 1, but FIG. 13 is a partially enlarged view of the single expansion floor member 9.

  13 and 14, reference numeral 10 denotes a roadway side wall such as planting provided at an end of the expansion floor member, and the roadway side wall 10 has a shape protruding from the seismic isolation building 1. It has a structure that covers the gap of the clearance C other than the roadways 3 and 4.

Thus, the expansion joint floor member 9 shown in FIG. 13 is a floor expansion joint floor for closing the clearance provided between the housings 3 and 4 between the base-isolated building 1 and the non-base-isolated building 2. The floor member 9 which is a member 9 and is provided on the clearance by recessing the upper surfaces of the casings 3 and 4 of the base-isolated building 1 and the non-base-isolated building 2 includes a metal fixed frame member 11 and a tip frame. It is constituted by a precast concrete plate 15 produced in a factory having a material 12 and side frame members 13a and 13b on an outer peripheral portion 14.

Further, a safety plate 17 is rotatably fixed to a front end portion of the front end frame member 12 positioned on the outer peripheral portion 14 of the precast concrete plate 15 by a plurality of hinges as in FIG. It is possible to cover the mutual movement groove 20 of the expansion joint at the normal time in the above, and the expansion floor member 9 made of the pre-cast concrete plate 15 of the factory production having the above-described structure is a frame of the base isolation building 1 and the non-base isolation building 2. The floor of the expansion joint was constructed in the clearance C between the gaps 5 and 6 (see FIG. 4).

Thus, in Example 3, the floor expansion joint for closing the clearance C provided between the casings 3 and 4 of the base-isolated building 1 and the non-base-isolated building 2 is as follows.
The expansion joint support portions 7 and 8 are provided by recessing the upper surface of the frame of the base isolation building 1 and the non-base isolation building 2, and the expansion floor member 9 constructed between the expansion joint support portions 7 and 8 is It consists of a precast concrete plate 15 produced in the factory having a metal fixed frame member 11, a tip frame member 12, and side frame members 13a and 13b on the outer peripheral portion 14, and a plurality of fixed frame members 11 of the precast concrete plate 15 are provided. Are attached as shown in FIG. 13, and FIG. 15 is a partially enlarged view of the bolt 41 with a spring for wing.

The wing spring-loaded bolts 41 are respectively inserted into the engagement holes 44 of the guide plate 43 inserted in the slide rail 42 provided on the surface 5 of the casing 1 on the seismic isolation building side 1, and the guide plate 43 is inserted through the nut 45. The expansion floor member 9 is fixed in a state in which the expansion floor member 9 is always attracted to the seismic isolation building side by the bolt 41 with the wing spring, and the expansion floor member 9 is movable as shown in FIG. The seismic isolation joint for floors which is possible and prevents the expansion joint part from being destroyed or the seismic isolation building 1 and the non-isolation building 2 from being destroyed by jumping up the expansion floor member 9. Is to provide.

Further, the guide plate 43 is mounted on the slide rail 42 and can slide along the slide rail 42 in the lateral direction, and the lateral adjustment can be easily performed when the roll or the expansion floor member 9 is installed. Yes.
A drain pipe 46 communicates with the bottom of the slide rail 42 and drains rainwater collected at the bottom of the slide rail 42 to the outside. 47 indicates that the expansion floor member 9 rotates smoothly. It is a sliding material such as Teflon.

Further, the expansion floor member 9 is screwed into a spring-loaded bolt 40 protruding through the engagement hole 39 of the fixed angle frame 27, and the expansion floor member 9 is always attracted to the seismic isolation structure 1 side by the spring-loaded bolt 40. Since it is fixed in a state where it is fixed, there is very little clearance between the fixed frame member 11 and the floor finishing plate 34, and there is room for the heels of shoes such as high heels to fit in, or pebbles, dust, etc. to enter the joints. Can be eliminated.

  Thus, according to the present invention, the seismic isolation expansion joint floor to be brought into the construction site is a precast concrete plate produced at the factory, thereby reducing the number of parts compared to the conventional floor assembly type metal box type expansion floor. It has become possible to simplify the mounting process and reduce costs by minimizing as much as possible.

  In addition, the present invention eliminates the process of filling a mortar in a metal box after installation or finishing a tile or stone through the mortar, like a conventional metal box type expansion floor. It is possible to provide a seismic isolation expansion joint that can save labor for curing and cleaning, and a floor member used for the seismic isolation expansion joint.

The present invention provides, for example, an expansion joint floor that can be manufactured with a large mass so as not to generate vibration and noise when passing through a vehicle, and can be arbitrarily weighted. The expansion joint floor provides a seismic isolation joint that provides sufficient support strength even when installed between large clearances, and a floor member for the seismic isolation joint. There is a lot of value.

It is a top view which shows the expansion joint floor part explaining Example 1 of this invention. It is sectional drawing of FIG. It is an enlarged plan view which shows one floor panel member which comprises an expansion joint floor part. FIG. 4 is a cross-sectional explanatory diagram of FIG. 3. It is a perspective view explaining the installation part of the expansion joint floor in this invention. It is sectional explanatory drawing of the seismic isolation expansion joint for floors in this invention. FIG. 7 is a drive explanatory diagram of FIG. 6. It is a top view which shows the expansion joint floor part explaining Example 2 of this invention. It is perspective explanatory drawing which shows the installation part of the expansion joint floor explaining Example 2 of this invention. It is a top view explaining the floor member fixture in Example 2. FIG. It is a principal part expanded sectional view of FIG. It is drive explanatory drawing of FIG. It is a top view which shows the expansion joint floor part explaining Example 3 of this invention. It is perspective explanatory drawing which shows the installation part of the expansion joint floor explaining Example 3 of this invention. It is a principal part expanded sectional view explaining the floor member fixing metal fitting in Example 3. FIG. FIG. 16 is an explanatory diagram of driving in FIG. 15.

Explanation of symbols

1 Base-isolated building 2 Non-base-isolated building 3 Road on the base-isolated building 4 Road on the non-base-isolated building 5 Frame (base-isolated building side)
6 frame (non-base-isolated building side)
7 Expansion joint support (base-isolated building side)
8 Expansion joint support (non-base-isolated building side)
9, 9a, 9b, 9c ... Expansion floor member 10 Road side wall 11 Fixed frame member 12 Tip frame member 13a, 13b Side frame member 14 Outer peripheral part 15 Precast concrete plate 16a, 16b, 16c Wing hinge 17 Safety plate 18a, 18b, 18c Hinge 19 Support member 20 Mutual movement groove 21a, 21b, 21c ... Aggregate 22 Reinforcing bar 23a, 23b, 23c ... Stone or tile decorative material 24a, 24b High nut 25a, 25b Bolt cap 26a, 26b Eye bolt 27 Fixed angle frames 28a, 28b, 28c ... Height adjustment liners 29a, 29b, 29c ... Anchor bolt 30 Angle base 31 Angle bases 32a, 32b Sliding plate member 33 Joint rubber packing 34 Floor finish Plate materials 35a, 35b, 35c ... Hole 36, 36a, 36b, 36c ... Floor member fixing bracket 37 Floor plate positioning pin 38 Wing eye nut 39 Engagement hole 40 Spring bolt 41 Spring rail bolt 42 Slide rail 43 Guide plate 44 Engagement hole 45 Nut 46 Drain pipe 47 Sliding material
C, C 'clearance

Claims (6)

In the floor expansion joint for closing the clearance provided between the seismic isolated building and the non-base isolated building,
A floor member in which the upper surface of the frame of the base-isolated building and the non-base-isolated building is recessed and installed on the clearance has a metal fixed frame member, a tip frame member, and a side frame member on the outer periphery. Made of production precast concrete board,
A plurality of hinges for wings are attached to the fixed frame material located on the outer periphery of the precast concrete plate,
Each of the wing hinges can be fixed to a fixed angle frame provided on the frame surface of the base-isolated building while holding the floor finishing plate at the top,
In addition, a safety plate is fixed to the front end portion of the front end frame member located on the outer peripheral portion of the precast concrete plate so as to be rotatable with a plurality of hinges,
The safety plate can cover the mutual movement groove of the expansion joint at normal times,
A floor member made of a precast concrete board produced in the factory having the above-described configuration is constructed between the clearances provided between the bases of the base-isolated building and the non-base-isolated building to configure the floor of the expansion joint,
A seismically isolated expansion joint floor. In the floor expansion joint for closing the clearance provided between the seismic isolated building and the non-base isolated building,
A floor member in which the upper surface of the frame of the base-isolated building and the non-base-isolated building is recessed and installed on the clearance has a metal fixed frame member, a tip frame member, and a side frame member on the outer periphery. Made of production precast concrete board,
The fixed frame material positioned on the outer peripheral portion of the precast concrete board is engaged with a plurality of floor board positioning pins and attached with wing eyenuts,
Each of the wing eyenuts is screwed to a spring-loaded bolt protruding through an engagement hole of a fixed angle frame installed on the frame surface of the base-isolated building side, and the floor member is attached to the base-isolated building side with the spring-loaded bolt. It is fixed in a state attracted to
In addition, a safety plate is fixed to the front end portion of the front end frame member located on the outer peripheral portion of the precast concrete plate so as to be rotatable with a plurality of hinges,
The safety plate can cover the mutual movement groove of the expansion joint at normal times,
A floor member made of a precast concrete board produced in the factory having the above-described configuration is constructed between the clearances provided between the bases of the base-isolated building and the non-base-isolated building to configure the floor of the expansion joint,
A seismically isolated expansion joint floor. In the floor expansion joint for closing the clearance provided between the seismic isolated building and the non-base isolated building,
A floor member in which the upper surface of the frame of the base-isolated building and the non-base-isolated building is recessed and installed on the clearance has a metal fixed frame member, a tip frame member, and a side frame member on the outer periphery. Made of production precast concrete board,
A plurality of bolts with springs for wings are attached to the fixed frame material located on the outer periphery of the precast concrete plate,
Each of the winged spring-loaded bolts is inserted into an engagement hole of a guide plate inserted in a slide rail provided on the frame surface on the seismic isolation building side, and can be connected via a nut. It is fixed with the floor member attracted to the seismic isolation building.
In addition, a safety plate is fixed to the front end portion of the front end frame member located on the outer peripheral portion of the precast concrete plate so as to be rotatable with a plurality of hinges,
The safety plate can cover the mutual movement groove of the expansion joint at normal times,
A floor member made of a precast concrete board produced in the factory having the above-described configuration is constructed between the clearances provided between the bases of the base-isolated building and the non-base-isolated building to configure the floor of the expansion joint,
A seismically isolated expansion joint floor. The floor member made of the precast concrete plate is provided with a metal fixed frame material, a tip frame material, and a side frame material on the outer periphery,
Construct a precast concrete plate in which aggregates and reinforcing bars are arranged at an arbitrary pitch on the inner side of the fixed frame member, the tip frame member, and the side frame member,
The surface of the precast concrete board is pasted with a stone or tile decorative material,
The seismic isolation expansion joint floor according to any one of claims 1 to 3. The floor member made of the precast concrete plate is provided with a metal fixed frame material, a tip frame material, and a side frame material on the outer periphery,
In the factory production of the precast concrete board with aggregates and reinforcing bars arranged at an arbitrary pitch inside the fixed frame material, the tip frame material, and the side frame material,
Two or a plurality of bolt caps located at the upper part of the high nut and the upper part of the high nut are embedded in the aggregate arranged in the precast concrete board, and a precast concrete board is manufactured.
By removing the bolt cap of the high nut and screwing the eye bolt to the high nut, the floor member made of a precast concrete plate is lifted with a wire so that it can be transported and installed.
The seismic isolation expansion joint floor according to any one of claims 1 to 4. In the floor expansion joint to close the clearance provided between the seismic isolation building and non-base isolation building,
The floor members that are recessed in the upper surface of the seismic isolation building and the non-base isolation building and are installed on the clearance have a metal fixed frame material, a tip frame material, and a side frame material at the factory production. Made of precast concrete board
A plurality of wing mechanisms are attached to the fixed frame material located on the outer peripheral portion of the precast concrete plate,
Each of the wing mechanisms can be fixed to the frame surface on the seismically isolated building side through the floor finishing plate.
In addition, a safety plate is rotatably fixed by a plurality of hinges at the distal end portion of the distal end frame member located on the outer peripheral portion of the precast concrete plate,
The safety plate can cover the mutual movement groove of the expansion joint at normal times,
The intermovable tip side is recessed on the upper surface of the housing and is placed on a sliding plate member made of a stainless steel mirror surface member or Teflon coating material, and corresponds to mutual movement at the time of an earthquake,
The floor seismic isolation joint according to any one of claims 1 to 6.

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