JP4990199B2 - Handrail type expansion joint - Google Patents

Description

  The present invention relates to a handrail-type expansion joint that covers a joint between adjacent buildings so that the relative displacement of each building can be absorbed.

  16 to 22 show a conventional joint device (handrail-type expansion joint) 21 for a transition passage, and this handrail-type expansion joint 21 is described in Patent Document 1, for example.

  The handrail-type expansion joint 21 is connected to the other passageway opening 1 formed in the outer wall 4 of the outer passage 3 of one building 2 and the other passageway so as to communicate with the passageway opening 1 and the joint portion 6. One end of the crossing passage 5 can be slid in the front-rear direction on the crossing passage 5 provided so as to protrude from the building 7 toward the one building 2 and the joint portion side end of the crossing passage 5. And a joint plate 12 attached to the recess (floor surface) 10 of the transition passage opening 1 so as to be slidable in the left-right direction, and one end portion on the side wall 16 of the joint passage 5 on the joint portion side. And a pair of slide side walls 15 attached to the outer wall 4 in which the other end portion is formed with the cross-passage opening 1 so as to be slidable in the left-right direction.

  When the handrail-type expansion joint 21 configured as described above is relatively displaced in a direction in which one building 2 and the other building 7 are close to each other due to an earthquake, and the joint portion 6 is narrowed, as shown in FIG. The crossing passage 5 slides in the front-rear direction to absorb the relative displacement in the direction in which the buildings 2 and 7 are close to each other. To move relative to each other in the direction in which the buildings 2 and 7 approach each other. In addition, when the one building 2 and the other building 7 are relatively displaced in a direction away from each other due to the earthquake and the joint portion 6 becomes wide, the joint plate 12 and the crossing passage 5 slide and move in the front-rear direction, While absorbing the relative displacement in the direction in which the buildings 2 and 7 are separated from each other, the crossing passage 5 side of the pair of slide side walls 15 is also slid in the front-rear direction with the side wall 16 of the crossing passage 5 to separate the buildings 2 and 7. Absorbs relative displacement in the direction of

  On the other hand, when one building 2 and the other building 7 are relatively displaced in the left-right direction due to the earthquake, the outer wall 4 and the joint plate 12 of the external passage 3 of one building 2 are moved in the left-right direction as shown in FIG. The sliding movement absorbs the relative displacement of the buildings 2 and 7 in the left-right direction, and the external passage 3 side of the pair of slide side walls 15 slides in the left-right direction with the outer wall 4 to Absorbs relative displacement in the direction.

Japanese Patent No. 2906374

  By the way, each slide side wall 15 in the handrail type expansion joint 21 described in Patent Document 1 has a lower end opened so that both the outer wall 4 and the side wall 16 on the joint portion side of the crossing passage 5 can be covered from above. The projection plane shape is made of a sheet metal having an internal / external double structure having a substantially L-shape. Therefore, it is bulky and heavy. Therefore, handling at the time of short-distance transportation from the production factory to the storage warehouse or long-distance transportation from the storage warehouse to the construction site is difficult, which hinders improvement in transfer efficiency and transport efficiency. In addition, in the construction site, since complicated installation work is required to cover each slide side wall 15 on both the outer wall 4 and the side wall 16 on the joint portion side of the crossing passage 5, the construction time becomes longer. Have.

  Further, each of the slide side walls 15 made of a sheet metal having an inner / outer double structure and covered from both above the outer wall 4 and the side wall 16 on the joint portion side of the crossing passage 5 is subjected to an excessive force that was not assumed at the time of design. When each slide side wall 15 is plastically deformed or damaged, smooth sliding movement in the front-rear direction between the side wall 16 on the joint portion side and each slide side wall 15 and smooth sliding in the left-right direction between the outer wall 4 and each slide side wall 15 are performed. When the movement is hindered and an earthquake next occurs, smooth relative movement in the front-rear direction between each slide side wall 15 and the side wall 16 on the joint portion side, and smooth relative movement in the left-right direction between each slide side wall 15 and the outer wall 4 May be impossible, and there is a problem that the reliability of the absorption of the relative displacement of the one building 2 and the other building 7 in the front-rear direction and the left-right direction is low.

  Furthermore, in each slide side wall 15 made of sheet metal having an internal / external double structure, it is difficult to repair a plastic deformation portion or a damaged portion, and if plastic deformation or damage occurs, the slide side wall 15 does not matter to any extent. Since the whole has to be exchanged, there is a problem that maintenance management is complicated and an economic burden on maintenance management is increased.

  The present invention solves such problems, and its object is to improve handling efficiency and transportation efficiency by facilitating handling during transportation or transportation by reducing the bulk and reducing the weight. The installation work at the construction site is facilitated and the construction time is shortened. Also, in the unlikely event that plastic deformation or damage occurs, smooth relative movement is ensured and the relative displacement of one building and the other building is absorbed. A handrail-type expansion joint equipped with a handrail unit that is highly reliable and can be replaced only by plastic deformation or damage, facilitating maintenance and reducing the economic burden of maintenance. It is to provide.

The handrail-type expansion joint according to the present invention includes a transition passage opening formed on the outer wall of the external passage of one building, and one of the other buildings so as to communicate with the passage passage opening and the joint portion. A transition passage provided so as to project toward the building, and one end of the transition passage on the floor surface of the transition passage is supported so as to be slidable in a first direction approaching and separating from each building, and the other end is A joint plate slidably mounted in a second direction perpendicular to the first direction on the horizontal plane with respect to the floor surface of the external passage facing the opening for the transition passage, and a side wall on the joint portion side of the transition passage A pair of handrail units each including a first portion that is relatively movable in the first direction and a second portion that is relatively movable in the second direction with respect to the outer wall on which the opening for the passage is formed. Tail rail type extract In the down and Deployment joint,
Wherein the first portion of each handrail unit, from said joint plate siding structure with four sides set has been Sakutai or panels fitted to the frame body and the frame body of the four sides Ru is erected in the width direction end portion of the Become
The second part of each handrail unit has an engaging member provided at one end in the second direction engaged with a stopper provided on the outer wall by being biased by a spring, and the other end in the second direction is The first portion is connected to the end portion of the first passage portion on the side of the opening portion for the connecting passage via a connecting member and is erected along the joint surface side of the outer wall. The dimensions in the two directions are reduced in each handrail unit, and the dimensions in the second direction are individually increased on one or the other side of each handrail unit against the bias of the spring during relative movement of each building in the second direction. It is characterized by comprising an expansion / contraction wall that shields the passage passage opening from the joint.

According to this, each handrail unit can separate the first part and the second part by releasing the connection by the connecting member. Thereby, since each bulk can be made low and it can reduce in weight, the handling at the time of a transfer or a transport becomes easy, and the improvement of a transport efficiency and a transport efficiency can be aimed at. Moreover, the 1st site | part of each handrail unit can be installed in the construction site by the simple work of standing up to the width direction edge part of a joint plate, and the 2nd site | part of each handrail unit was provided in the one end part of a 2nd direction. The engaging member is adapted to be engageable with a stopper provided on the outer wall, and the other end portion in the second direction is connected to the end portion of the first passage on the side of the crossing passage opening side to the joint portion side of the outer wall Since it can be installed by a simple operation of standing along an elevation surface, the installation work at the construction site becomes easy and the construction time can be shortened. Furthermore, the 1st site | part of each handrail unit is standingly arranged by the joint plate, and the 2nd site | part is the state which the other end part of the 2nd direction was connected with the edge part by the side of the opening part for each passage of each 1st site | part. Therefore, even if each handrail unit is plastically deformed or damaged due to an excessive force that was not assumed at the time of design, the plastic deformation or damage Since the damage does not affect the side wall on the joint portion side of the transition passage and the outer wall on which the opening for the transition passage is formed, smooth relative movement between the side wall and the outer wall on the joint portion side is ensured, and the first direction of each building And the reliability with respect to absorption of the relative displacement to a 2nd direction is improved.

  In addition, the first portion of each handrail unit includes an upper chord material including a headboard member and a headboard receiving member extending in the first direction, a lower chord material facing below the upper chord material, and at least an upper chord material and a lower chord material It comprises a pair of fences which are provided with a pair of struts that connect both ends in the first direction and a plurality of eaves that are arranged between the struts and that connect the upper chord material and the lower chord material to each other. It is said.

  According to this, even if an excessive force that was not assumed at the time of design is applied to the first part and plastic deformation or damage occurs in the upper chord material, lower chord material, support column or eaves, plastic deformation or damaged upper chord It is only necessary to replace the material, the lower chord material, the struts or the crosspieces, and it is not necessary to replace all the first parts, so that maintenance management is easy and the economic burden on maintenance management can be reduced.

  Furthermore, each handrail unit second portion includes a plurality of wall plates extending in the vertical direction extending in the second direction and arranged in a projection plane shape zigzag, and each contact portion of the zigzag and outer walls at both ends in the second direction. It is characterized in that it is constituted by an expansion / contraction wall that can be expanded and contracted in the second direction, in which the close end portions are rotatably connected by a hinge mechanism.

  According to this, even if an excessive force that was not assumed at the time of design acts on the second part and any of the plurality of wall plates or the hinge mechanism is plastically deformed or damaged, the plastic deformation Or, it is only necessary to replace one of the damaged wall plates or only the hinge mechanism, and it is not necessary to replace all the second parts, so that maintenance management is easy and economical in terms of maintenance management. Burden can be reduced.

  According to the present invention, it is easy to handle at the time of transportation or transportation by reducing the bulk and lightening, thereby improving the transportation efficiency and transportation efficiency, and making the installation work at the construction site easy and shortening the construction time. In the unlikely event that plastic deformation or damage occurs, smooth relative movement is ensured, the reliability of absorption of relative displacement between one building and the other is increased, and only plastic deformation or damage is replaced. By enabling this, it is possible to realize a handrail-type expansion joint having a handrail unit that facilitates maintenance management and reduces the economic burden on maintenance management.

  Hereinafter, a preferred embodiment of a handrail-type expansion joint according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a handrail-type expansion joint 30 (hereinafter referred to as an expansion joint 30) of the present invention.

  In FIG. 1, the expansion joint 30 spans a joint 33 interposed between one adjacent building 31 and the other building 32, and is used for a crossing passage formed on the outer wall 35 of the external passage 34 of the one building 31. By connecting the opening 36 and a passage 37 provided so as to protrude from the other building 32 toward the opening 36 for the passage of one building 31, it is possible to pass between the buildings 31 and 32. In addition, the relative displacement between the first direction (the direction of the arrow X) in which the buildings 31 and 32 approach and separate from each other due to the earthquake and the second direction (the direction of the arrow Y) orthogonal to the first direction on the horizontal plane. Allow.

  The expansion joint 30 includes a joint plate 38 and a pair of handrail units 39.

  2 is a cross-sectional view taken along line II-II in FIG. 1, FIG. 3 is an enlarged view taken along arrow III-III in FIG. 1, and FIG. 4 is a view taken along arrow IV-IV in FIG.

  In FIG. 1 to FIG. 4, one end portion of the joint plate 38 in the first direction is supported on the floor surface 41 so as to be slidable between the side walls 37 a and 37 b of the joint passage 37 on the joint portion side. That is, a plurality of slide bars 40 (only one slide bar 40 is shown in FIG. 3) extending in the first direction at a predetermined interval in the second direction on the back surface of the joint plate 38. A first end portion of each slide bar 40 in the first direction is supported on the floor surface 41 of the cross passage 37 so as to be slidable.

  As shown in FIG. 3, the other end of the joint plate 38 in the first direction is in a second direction orthogonal to the floor 42 of the external passage 34 facing the opening 36 for the passageway in the first direction on the horizontal plane. Mounted slidably. That is, a slide rail 45 is attached to the other end portion of the joint plate 38 in the first direction so as to extend in the second direction on the back surface thereof, and is supported by the slide rail receiver 46 through the slide rail 45 so as to be slidable. The

  The slide rail 45 is made of an extruded shape made of stainless steel or aluminum alloy. Upward engagement pieces 45b extend in the longitudinal direction (second direction) over the entire length in the width direction (first direction) of the lower side 45a. 45d of upward bolt fitting grooves 45d extending in the longitudinal direction (second direction) are formed at both ends in the width direction (second direction) of the upper side portion 45c. A standing plate 45f that connects the bottom plate 45e of the groove 45d and the base of each engagement piece 45b, and a reinforcing rib 45g that connects the lower side 45a and the width direction (second direction) intermediate portion of the upper side 45c.

  The slide rail receiver 46 is of a cross-sectional channel shape made of an extruded shape of stainless steel or aluminum alloy, and the length in the longitudinal direction (second direction) is a slide to allow the slide rail 45 to slide. It is set sufficiently larger than the length in the longitudinal direction (second direction) of the rail 45 and the dimension in the width direction of the joint plate 38 (dimension in the second direction). The upper end of each flange 46a at both ends in the width direction (first direction) has a slide rail mounting surface 46b bent horizontally inward and a hook shape downward from the inner end of the slide rail mounting surface 46b. The web 46d is formed integrally with the engagement piece 46c that is bent in the longitudinal direction (second direction). The web 46d that connects the flanges 46a has a predetermined length in the longitudinal direction (second direction). Along with the reinforcing plate 47 made of steel plate placed at an interval, a plurality of anchor bolts 48 are used to connect the joint 31 from one building 31 below the floor surface 42 of the external passage 34 facing the opening 36 for the passageway. It is fixed to the upper surface of a support portion 49 that protrudes from the portion 33 and extends in the second direction.

  The other end of the joint plate 38 in the first direction is attached to the upper surface of the slide rail 45 via a joint plate fitting 50 made of steel plate. That is, the joint plate mounting hardware 50 includes a web 50a, a pair of flanges 50b extending downward from both ends in the width direction (first direction) of the web 50a, and mounting pieces 50c horizontally bent outward from the lower ends of the flanges 50b. The other end portion of the joint plate 38 in the first direction is attached to the upper surface of the web 50a by a plurality of screws 51. Each mounting piece 50c is interposed between a bolt 52 having a head portion fitted in each bolt fitting groove 45d of the slide rail 45 and a nut 53 screwed to the bolt 52, and the bolt 52, nut. Fastening 53 is attached to the upper surface of the slide rail 45.

  The slide rail 45 is supported by the slide rail receiver 46 so as to be slidable in the second direction with the other end portion in the first direction of the joint plate 38 attached to the upper surface via the joint plate mounting hardware 50. That is, the bottom plate 45e of each bolt fitting groove 45d is placed on the slide rail mounting surface 46b of the slide rail receiver 46, and the engaging pieces 45b and the engaging pieces 46c of the slide rail receiver 46 are engaged with each other. In this state, the slide rail 45 is supported so as to be slidable in the second direction, and the downward bending of the slide rail 45 is suppressed by interference between both ends of the reinforcing plate 47 in the second direction with the lower side portion 45a.

  Between the sliding surfaces of the slide rail 45 and the slide rail receiver 46, that is, between the bottom plate 45e of the bolt fitting groove 45d and the slide rail mounting surface 46b, the outer surface of each vertical plate 45f, and the engagement pieces 46c. From a sliding material formed by adhesion of a coating material or a resin tape formed by spraying a silicone solution between the outer surface and between each engaging piece 45b and the inner surface of each engaging piece 46c and between each flange 46a. The sliding rail 45 is supported by the slide rail receiver 46 so as to be slidable in the second direction with the lubricating layer 43 interposed therebetween, thereby reducing the frictional resistance of the sliding surfaces of the slide rail 45 and the slide rail receiver 46. By reducing the size, the smoothness of the relative movement between the joint plate 38 and the external passage 34 in the second direction is enhanced.

  1 to 4, each handrail unit 39 includes a first portion 54 that can be moved relative to the side walls 37 a and 37 b on the joint portion side of the transfer passage 37 in the first direction, and a passage passage opening 36. And a second portion 55 that is movable relative to the formed outer wall 35 in the second direction.

5 is a longitudinal front view showing the upper end of one first portion 54 and the vicinity thereof in an enlarged manner, FIG. 6 is a side view of FIG. 5, FIG. 7 is a plan view of FIG. 6, and FIG. 55 is a side view showing an enlargement of the upper end portion of the outer wall 35 of one of the first portion 54 and the external passage 34 and its vicinity, FIG. 9 is a view taken along arrow IX-IX in FIG. 8, and FIG. FIG. 9 is a view taken along line XX of FIG.
1-7, the 1st site | part 54 of each handrail unit 39 is standingly arranged in the width direction (2nd direction) both ends of the joint plate 38, and the passage area 38A above this joint plate 38 (FIG. 2, FIG. 4) and a joint body having four sides.

  The first portion 54 extends in the first direction and is opposed to the upper chord member 54A and the lower chord member 54B in the longitudinal direction at both ends in the longitudinal direction (both ends in the first direction) by a pair of support posts 54C. The upper end portion is connected to the upper chord material 54A, and the lower end portion is composed of a four-sided fence body provided with a plurality of eaves bars 54d connected to the lower chord material 54B, and the lower end portion of each column 54C is the width direction of the joint plate 38 It is erected in a fixed manner at both ends (both ends in the second direction).

  The upper chord material 54A covers the upper end of each column 54C and the upper end of each crosspiece 54d from above, and has a T-shaped guide groove 56 (see FIG. 5) on the vertical surface facing the side walls 37a and 37b. 5, see FIG. 10), and a head member 54a1 having an inverted concave section and a rib 54a3 of the head member 54a1 are mounted, and the upper end of each column 54C and the upper end of each bar 54d are connected to each other. A fixed metal member 57A having an L-shaped section (FIGS. 3, 6 and 6) comprising a receiving member 54a2 and having a tension coil spring 57 interposed in the hollow portion 54a4 of the head member 54a1 and a base end portion of which is fixed to the rib 54a3. The base end portion of the wire 58 is connected to the distal end portion of the coil spring 57. The upper chord member 54A, the lower chord member 54B, the respective struts 54C, and the crosspieces 54d can be made of extruded shapes made of stainless steel or aluminum alloy. Thereby, the productivity and assemblability of the first part 54 are improved. The first portion 54 is configured such that a cross-section T-shaped fitting portion 70a (see FIG. 5) in an aluminum alloy rail 70 (see FIGS. 5 and 7) is slidable in a T-shaped guide groove 56 in the head member 54a1. Mated. The rail 70 is fixed to the side wall 37a, 37b on the joint portion side by an anchor member 69.

  The second portion 55 of each handrail unit 39 is configured by an expansion / contraction wall whose dimensions in the second direction are alternately expanded and contracted when the buildings 31 and 32 are moved in the second direction, and is attached to one end in the second direction. A pair of upper and lower aluminum alloy key-shaped engaging members 65 (see FIGS. 3 and 9) are pulled and urged by the spring 57 as will be described later, so that a pair of upper and lower aluminum alloy stoppers 67 (FIG. 3). , See FIG. 9). Each stopper 67 is fixed to the joint portion side vertical surface 35 a of the outer wall 35 by an anchor member 66. A pair of upper and lower aluminum alloy connecting plates (connectors) 68 (see FIGS. 3, 9, and 10) are attached to the other end portion in the second direction, and the second direction is passed through each connecting plate 68. The other end of each of the first portions 54 is connected to the end of the first passage 54 on the side of the transition passage opening 36, that is, the column 54 C of the first portion 54 on the side of the passage passage opening 36. It is erected along the elevation surface 35a.

  In FIG. 1, FIG. 4, FIG. 8, FIG. 9 and FIG. 10, the second portion 55 constituted by the expansion / contraction wall that can be expanded and contracted in the second direction is a plurality of (for example, eight) wall plates 55A extending in the vertical direction. -55H (see FIG. 9) are arranged in a projection plane shape zigzag extending in the second direction, and the zigzag contact portions P1 to P7 and the second direction farthest from the tip of the first portion 54 An end portion P8 near the outer wall 35 in the wall plate 55A at the outer end portion and an end portion P9 near the outer wall 35 in the wall plate 55H in the second direction inner end portion closest to the distal end portion of the first portion 54 are hinge mechanisms. 59 is configured to be pivotably connected.

  Each hinge mechanism 59 includes a sector tooth portion 60 formed to extend in the vertical direction at both ends in the width direction (first direction) of each wall plate 55A to 55H, opening and closing movements of each wall plate 55A to 55H, and It comprises a holding member 61 that permits the meshing rotation of the sector tooth portion 60 accompanying the opening and closing movement.

  The holding member 61 includes a base portion 61a having a substantially channel cross section and an outer flange portion 61b having a U-shaped cross section that is connected to the base portion 61a and protrudes in the first direction. It extends to. The base portion 61a is fitted into the rotation center portion of each sector tooth portion 60 so as to permit the meshing rotation of the pair of sector tooth portions 60 at each of the contact portions P1 to P7. A pair of holding heads 61c having a circular cross section that is movably held is formed. The sector tooth portion 60 formed on each of the end portions P8 and P9 has one holding head portion 61c of the base portion 61a fitted into the rotation center portion and the other holding head portion of the base portion 61a. 61c is hold | maintained by the holding member 61 so that it may mesh | engage with the sector tooth | gear part 60A inserted by the rotation center part. For each of the wall plates 55A to 55H and the holding members 61 in which the sector tooth portions 60 are formed at both ends in the width direction, extruded shapes made of stainless steel or aluminum alloy can be used. Thereby, productivity and assemblability of each wall board 55A-55H and each holding member 61 improve.

  Each key-shaped engagement member 65 is fastened by a plurality of screws 71 to the side surface of the outer flange portion 61b of the holding member 61, which is a constituent member of the hinge mechanism 59 at the end portion P8 (see FIGS. 9 and 10). ), One end portion of each connecting plate 68 is fastened to the side surface of the outer flange portion 61b of the holding member 61, which is a constituent member of the hinge mechanism 59 at the end portion P9, by a plurality of screws 72 (FIG. 8, 9 and FIG. 10), the other end is fastened to the front surface of the column 54C on the side of the crossing passage opening 36 in each first portion 54 by a plurality of screws 73 (FIGS. 8, 9, and 10). reference). Also, the upper end opening of each holding member 61 is closed by a sheet metal cover 62 (see FIGS. 8 and 10). Each of the covers 62 is held by screwing and fastening a pair of tapping screws 63 penetrating from above the cover 62 into a concave portion 64 (see FIG. 9) extending in the vertical direction formed in the base portion 61a and the outer flange portion 61b. It is fixed to the upper end of the member 61.

  1, 3, 8, 9, and 10, the headboard member 54 a 1, the rib 54 a 3, and the headboard receiving member 54 a 2 in the first portion 54 of each handrail unit 39 are from the column 54 C on the side of the transition passage opening 36. Is slightly extended toward the passage opening 36 side, and a roller 74 having a vertical axis is rotatably mounted therein.

  A wire 58 having a proximal end connected to the distal end of the tension coil spring 57 spans the vicinity of the distal end of the wire 58 on the roller 74 and horizontally changes in the second direction, and the vicinity of the distal end is an end P9. The outer flange 61b of the hinge mechanism 59, the outer flange 61b of the hinge mechanism 59 in the zigzag contact portion P7, the outer flange 61b of the hinge mechanism 59 in the zigzag contact portion P6, and the hinge mechanism 59 of the zigzag contact portion P5. The outer flange portion 61b and the outer flange portion 61b of the hinge mechanism 59 at the end portion P8 are passed through in this order, and the front end portion is slightly protruded from the outer flange portion 61b of the hinge mechanism 59 at the end portion P8, and is fixed to the protruding tip portion. The member 75 is fixed. As a result, the key-shaped engaging member 65 is biased by the pulling force of the tension coil spring 57, the key-shaped engaging member 65 is brought into contact with the stopper 67, and the dimension of each second portion 55 in the second direction is reduced. Do

  1 and 3, one end of the joint plate 38 in the first direction corresponds to a parting material 77 attached to the slide rail receiver 46 via the bracket 76, and the joint plate 38 has the other end in the first direction. A parting material 78 is attached.

  The expansion joint 30 configured as described above is stationary in a standard state shown in FIG.

  Now, when the buildings 31 and 32 are relatively displaced in the first approaching direction due to the earthquake and the joint portion 33 becomes narrow, the joint plate 38, the crossing passage 37, and the first portion 54 of each handrail unit 39 as shown in FIG. The side walls 37a and 37b on the joint portion side slide and absorb relative displacement in the direction in which the buildings 31 and 32 approach each other. Further, when the buildings 31 and 32 are relatively displaced in the first direction in the standard state shown in FIG. 11 in the first direction away from each other due to the earthquake, the joint portion 33 becomes wider as shown in FIG. The first part 54 of each handrail unit 39 and the side wall 37a, 37b on the joint portion side slide to absorb relative displacement in the direction in which the buildings 31, 32 are separated from each other.

  In the standard state shown in FIG. 11, when one building 31 is relatively displaced to the right in the second direction with respect to the other building 32 due to an earthquake, the second portion 55 in the right handrail unit 39 is pulled as shown in FIG. The dimension in the second direction is increased against the bias of the coil spring 57 to shield the cross passage opening 36 from the joint portion 33, and the other end portion of the joint plate 38 is the external passage 34 of one building 31. The relative displacement of each of the buildings 31 and 32 is absorbed by sliding movement relative to the floor surface. In addition, when one building 31 is relatively displaced to the left in the second direction with respect to the other building 32 by the earthquake in the standard state shown in FIG. 11, the second portion 55 in the left handrail unit 39 as shown in FIG. The size of the second direction is enlarged against the bias of the tension coil spring 57 to shield the transition passage opening 36 from the joint portion 33, and the other end portion of the joint plate 38 is outside the one building 31. The relative displacement of the buildings 31 and 32 is absorbed by sliding movement with respect to the floor surface of the passage 34.

  According to the expansion joint 30 of the present invention, each handrail unit 39 can be separated into the first part 54 and the second part 55 by removing the connecting plate 68, and the respective parts can be reduced in weight and reduced in weight. Handling at the time of transfer or transportation is facilitated, and the transfer efficiency and the transport efficiency can be improved. In addition, the first part 54 of each handrail unit 39 can be installed by a simple operation standing on both ends in the width direction (second direction) of the joint plate 38 at the construction site, and the second part 55 of each handrail unit 39 is The pair of upper and lower aluminum alloy key-shaped engaging members 65 attached to one end in the second direction can be engaged with a pair of upper and lower aluminum alloy stoppers 67 attached to the joint-side standing surface 35a of the outer wall 35. And the other end in the second direction is connected to the support column 54C on the side of the transition passage opening 36 of each first portion 54 via a pair of upper and lower aluminum alloy connecting plates 68, and the joint of the outer wall 35 is connected. Since it can be installed by a simple operation of standing along the part-side elevation surface 35a, the installation work at the construction site is facilitated and the construction time can be shortened.

  Further, the first portion 54 of each handrail unit 39 is erected on the joint plate 38, and the second portion 55 has a second end in the second direction of the first portion 54 on the side of the crossing passage opening 36. By being erected along the joint-side elevation surface 35a of the outer wall 35 in a state of being connected to 54C, an excessive force that was not assumed at the time of design acts, and each handrail unit 39 is plastically deformed or Even if it is damaged, the plastic deformation or damage does not affect the side walls 37a and 37b on the joint portion side of the transition passage 37 and the outer wall 35 on which the transition passage opening 36 is formed. Smooth relative movement with the outer wall 35 is ensured, and the reliability of absorption of relative displacement in the first direction and the second direction of the buildings 31 and 32 is enhanced.

  Even if an excessive force that was not assumed at the time of design acts on the first portion 54 and the upper chord member 54A, the lower chord member 54B, the support post 54C, or the crosspiece 54d is plastically deformed or damaged, the plastic deformation or It is only necessary to replace the damaged upper chord material 54A, lower chord material 54B, support post 54C, or crosspiece 54d, and it is not necessary to replace all the first parts 54. Therefore, maintenance management is easy and economical in terms of maintenance management. Burden can be reduced.

  Further, even if an excessive force that is not assumed at the time of designing acts on the second portion 55, any one of the plurality of wall plates 55 </ b> A to 55 </ b> H or any one of the hinge mechanisms 59 may be plastically deformed or damaged. Further, it is only necessary to replace any one of the plurality of plastically deformed or damaged wall plates 55A to 55H or only the hinge mechanism 59, and it is not necessary to replace all the second portions 55, so that maintenance management is easy. At the same time, the economic burden on maintenance management can be reduced.

  In addition, in the said embodiment, although the 1st site | part 54 of each handrail unit 39 is demonstrated with the fence body assembled into four sides, the 1st site | part 54 which concerns on this invention is limited only to the said embodiment. 1st part comprised by the frame structure of the four sides which consist of at least a pair of support | pillar which mutually connects an upper side and a lower side and an upper side and a lower side spaced apart vertically, and the panel structure body which fitted the panel in this frame Even if it is 54, there exists an effect | action and effect similar to the 1st site | part 54 which consists of the fence body assembled by the four sides demonstrated in the said embodiment.

It is a top view which shows one Embodiment of this invention. It is sectional drawing which follows the II-II line | wire of FIG. FIG. 3 is an enlarged view taken along arrow III-III in FIG. 1. It is the IV-IV arrow line view of FIG. It is a longitudinal front view which expands and shows the upper end part of one 1st site | part, and its vicinity. FIG. 6 is a side view of FIG. 5. FIG. 7 is a plan view of FIG. 6. It is a side view which expands the upper end part of the outer wall of one 2nd site | part, one 1st site | part, and an external channel | path, and its vicinity, and shows these connection. It is the IX-IX arrow directional view of FIG. It is a XX arrow line view of FIG. It is a top view at the time of a standard stationary. It is a top view in the state where relative displacement was performed in the direction in which each building approaches. It is a top view of the state which carried out relative displacement in the direction where each building leaves | separates. It is a top view of one state where each building was relatively displaced in the 2nd direction. It is a top view of the other state where each building was relatively displaced in the 2nd direction. It is a top view of a prior art example. It is an expanded sectional view which follows the 2-2 line of FIG. It is an expanded sectional view which follows the 3-3 line of FIG. It is a description perspective view of the opening part for a transition passage of a prior art example. It is a description perspective view of the slide side wall of a prior art example. It is explanatory sectional drawing of the state which moved to the front-back direction of the prior art example. It is a description top view of the state moved to the left-right direction of the prior art example.

30 Handrail-type expansion joint 31 One building 32 Other building 33 Joint part 34 External passage 35 Outer wall 35a Outer wall joint side elevation 36 Transition passage opening 37 Transition passage 37a, 37b Side wall 38 of the transition passage side Joint plate 38A Passage area above joint plate 39 Pair of handrail units 41 Floor surface of transition passage 42 Floor surface of external passage 54 First part 54A Upper chord material 54a1 Head member 54a2 Head member receiving member 54B Lower chord member 54C Spear 55 Second part 55A-55H Wall plate 57 Tension spring (spring)
59 Hinge mechanism 65 Engagement member 67 Stopper 68 Connection plate (connection member)
P1 to P7 Zigzag contact points P8, P9 End Arrow X First direction Arrow Y Second direction

Claims (3)

A transition passage opening formed on the outer wall of the external passage of one building, and provided so as to protrude from the other building toward one building so as to communicate with the passage passage opening via the joint. A crossover passage, and an external passage that is supported on the floor of the crossover passage so that one end is slidable in a first direction approaching and separating from the buildings, and the other end faces the crossover opening. A joint plate that is slidably mounted in a second direction orthogonal to the first direction with respect to the floor surface in the first direction and a side wall on the joint portion side of the transition passage is relatively movable in the first direction. A handrail-type expansion joint including a pair of handrail units each including a first portion and a second portion that is relatively movable in the second direction with respect to the outer wall on which the passage passage opening is formed,
Wherein the first portion of each handrail unit, from said joint plate siding structure with four sides set has been Sakutai or panels fitted to the frame body and the frame body of the four sides Ru is erected in the width direction end portion of the Become
The second part of each handrail unit has an engaging member provided at one end in the second direction engaged with a stopper provided on the outer wall by being biased by a spring, and the other end in the second direction is The first portion is connected to the end portion of the first passage portion on the side of the opening portion for the connecting passage via a connecting member and is erected along the joint surface side of the outer wall. The dimensions in the two directions are reduced in each handrail unit, and the dimensions in the second direction are individually increased on one or the other side of each handrail unit against the bias of the spring during relative movement of each building in the second direction. A handrail-type expansion joint characterized in that the handrail-type expansion joint is configured by an expansion / contraction wall that shields the opening for the passageway from the joint. In the handrail type expansion joint according to claim 1,
A first portion of each handrail unit includes an upper chord member including a headboard member and a headboard receiving member extending in the first direction, a lower chord member facing below the upper chord member, and at least first of the upper chord member and the lower chord member. It is composed of a pair of fences having a pair of pillars connecting both ends in the direction and a plurality of fences arranged between the pillars and connecting the upper chord member and the lower chord member to each other. Handrail expansion joint. In the handrail type expansion joint according to claim 1,
Each handrail unit second part has a plurality of wall plates extending in the vertical direction extending in the second direction to arrange the projection plane shape in a zigzag manner, and close to each contact portion of the zigzag and the outer wall at both ends in the second direction. A handrail-type expansion joint characterized in that it is constituted by an expansion / contraction wall that can be expanded / contracted in a second direction, in which each end of the shaft is rotatably connected by a hinge mechanism.

Images