JPH053306U - Connection structure of pavement made of precast concrete - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the appearance of the pavement plate surface in the pavement plate connection structure and to simplify the connection structure. [Structure] A plurality of through-holes extending in parallel are provided in the paving slab 1, a ridge 3 extending in the width direction of the paving slab is provided at one end of the pavement slab, and the other end of the paving slab 1 is paved. One paving slab 1 to be connected by providing a groove 4 extending in the plate width direction
Of the pavement slab 1 is inserted into the groove 4 at the end of the other pavement slab 1, and the steel rod 5 is inserted through the through hole of each pavement slab 1 to form the through hole of each pavement slab 1 and the steel rod 5. The time-curable material 6 is injected and filled in the gap between the two.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is a connection structure for precast concrete paving slabs laid on pedestrian roads, etc. It is about construction.

[0002]

[Prior art]

  Conventionally, as a connection structure of precast concrete paving slab (PC paving slab) , (1) As shown in FIGS. 8 and 9, an arc is formed at the end of the PC paving slab 8 to be connected. -Shaped sheath 9 is embedded, and arcuate hole 10 is opened on the upper surface and end surface of PC paving slab 8. And the spiral reinforcing bar 11 surrounding the arcuate hole 10 is embedded and the PC paving PC to be connected by providing a concave portion 12 located at the opening of the arcuate hole 10 on the upper surface of the plate 8 After joining the end faces of the paving slab 8 to the arc-shaped holes 10 of each PC pavement 8 After inserting the steel rod 13 into each arc-shaped hole 10 and filling the mortar 14 with the mortar 14, A connection structure is known in which a lid 15 is fixed to the recess 12 with an adhesive.   (2) As shown in FIGS. 10 and 11, one PC paving plate 8 to be connected The steel rod 17 is housed in the horizontal pipe 16 embedded in A, and is connected to the other PC paving plate 8B to be connected. A steel rod receiving pipe 18 is buried, and a seal ring 19 is attached to the end surface of each PC paving plate 8A, 8B. After joining through, the steel rod 17 is moved so that the steel rod 17 is connected to the horizontal pipe 16 and the steel rod. An injection hole 20 which is arranged over the receiving pipe 18 and is continuously provided on the upper portion of the lateral pipe 16. From the injection hole 21 that is continuously provided on the upper portion of the steel rod receiving pipe 18, A connection structure in which the mortar 14 is injected and filled in the rod receiving pipe 18 is also known.

[0003]

[Problems to be solved by the device]

  In the case of the connection structure of (1) above, the lid 15 is exposed on the surface of the PC paving slab 8. In the case of poor appearance and in the case of the connection structure of (2) above, the mortar in the plurality of injection holes 1 4 is exposed on the surface of the PC paving slabs 8A and 8B, so that the appearance is poor and the connecting structure is complicated. It's miscellaneous.

[0004]

[Means for Solving the Problems]

  In order to advantageously solve the above problems, the present invention is made of precast concrete. A plurality of through holes 2 extending in parallel are provided in the central portion of the pavement plate 1 in the thickness direction, A ridge 3 extending in the width direction of the pavement plate is provided at one end of the pavement plate 1, and One pavement plate to be connected by providing a groove 4 extending in the width direction of the pavement plate at the other end of the pavement plate 1 The ridge 3 at one end is fitted into the groove 4 at the end of the other paving slab 1, and the through hole of each pavement 1 is inserted. 2 through which the steel rods 5 are inserted to pass through the gap between the through-holes 2 of each paving plate 1 and the steel rods 5. The time curable material 6 is injected and filled.   Also, by reducing the amount of steel rods 5 used, a large number of precast concrete paving slabs In order to connect the steel rods 5 and the steel rods 5 through the through holes 2 of the plurality of paving slabs 1 to be connected. Spacer rods 7 thinner than this are alternately arranged in series and inserted, and the steel rod 5 Are arranged over the adjacent paving slabs 1, and the through holes 2 of each paving slab 1 and the steel rods 5 and The space-curable material 6 is injected and filled into the gap between the spacer rod 7 and the spacer rod 7.

[0005]

【Example】

  4 and 5 show the precast concrete used in the embodiment of the present invention. 1 shows a pavement slab (PC pavement slab) 1 made of precast concrete In the central portion of the pavement plate body 22 in the thickness direction, a plurality of linear sheath tubes 23, So that they extend parallel to each other and at right angles to the front and rear end faces 24, 25 of the pavement plate body 22. Is embedded in the pavement plate in the thickness direction of the pavement plate on one end face 24 in the widthwise direction of the pavement plate. The ridges 3 having a trapezoidal cross section extending in parallel are continuously provided, and the paving plate on the other end surface 25 is formed. A groove 4 having a trapezoidal cross section extending in the width direction of the pavement plate is provided at the center in the thickness direction. The through hole 2 is formed by the straight sheath tube 23, and the sheath tube 2 is formed on the pavement plate 1. The spiral rebar 11 surrounding the end of 3 is buried.

[0006]   When connecting the paving slabs 1 configured as described above, first, as shown in FIG. The front and rear end surfaces 24 and 25 of the plurality of paving slabs 1 are joined together, and the ridges 3 are grooved. 4 and then, as shown in FIG. 7, a steel rod 5 and a spacer rod body thinner than the steel rod 5. 7 and 7 are alternately arranged in series and inserted through the through holes 2 of each pavement plate 1. The steel rods 5 are arranged over the through holes 2 of the adjacent paving slabs 1.

[0007]   Next, as shown in FIGS. 1 to 3, the through holes 2 of each pavement 1 and the steel rods 5 and A time-curable material 6 such as mortar is injected and filled into the gap between the spacer rod 7. It Further, the joint material 26 is injected and filled into the joint groove formed in the upper part of the adjacent pavement 1. It

[0008]

[Effect of device]

  According to the present invention, the ridges 3 on one end of one pavement plate 1 to be connected are connected to the other pavement plate 1. Since it is fitted in the groove 4 at the end of 1, the pavement 1 is not misaligned in the vertical direction. Can be joined together and after each paving slab 1 is joined, The steel rods 5 are inserted through the holes 2 to form the gap between the through holes 2 of each pavement plate 1 and the steel rods 5. By performing a simple operation of injecting and filling the time-curable material 6, The paving slab 1 can be easily and firmly connected so that no misalignment occurs. Moreover, the connection structure is simple.   In addition, the steel rods 5 and finer than the steel rods 5 are spread over the through holes 2 of the pavement 1 to be connected. And the spacer rods 7 are alternately arranged in series and inserted, and the steel rods 5 are connected to each other. Arranged over the pavement 1, through holes 2 of each pavement 1, the steel rod 5 and the spacer By filling and filling the time-curable material 6 into the gap between the rod 7 and the rod 7, the steel rod 5 can be used. It is possible to connect a large number of paving slabs 1 with a small dose.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a connection structure of precast concrete paving slabs according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged sectional view taken along line BB of FIG.

FIG. 4 is a perspective view of a paving slab used in an embodiment of the present invention.

FIG. 5 is a partially cutaway vertical side view of the paving slab shown in FIG.

FIG. 6 is a vertical cross-sectional side view showing a state where the paving slabs to be connected are joined.

FIG. 7 is a vertical cross-sectional side view showing a state where a steel rod and a spacer rod are inserted through a through hole of a paving plate to be connected.

FIG. 8 is a vertical cross-sectional side view showing a state in which the paving slabs that form the conventional paving slab connection structure of the first example are joined.

FIG. 9 is a vertical cross-sectional side view showing a conventional paving plate connection structure of a first example.

FIG. 10 is a vertical cross-sectional side view showing a state in which the paving slabs constituting the conventional paving slab connection structure of the second example are joined.

FIG. 11 is a vertical cross-sectional side view showing a conventional paving plate connection structure of a second example.

[Explanation of symbols]

1 pavement version 2 through holes 3 ridges 4 grooves 5 steel rod 6 Aging material 7 Spacer rod 22 Pavement body 23 Straight sheath tube

Claims (2)

[Scope of utility model registration request] 1. A precast concrete pavement slab 1 is provided with a plurality of through holes 2 extending in parallel at the center in the thickness direction, and a ridge extending in the width direction of the pavement slab at one end of the pavement slab 1. 3 is provided, a groove 4 extending in the width direction of the pavement plate is provided at the other end of the pavement plate 1, and the protrusion 3 at the end of one pavement plate 1 to be connected is provided on the other pavement plate 1.
Is inserted into the groove 4 at the end of the pavement plate 1, the steel rod 5 is inserted through the through hole 2 of each pavement plate 1, and the through hole 2 and the steel rod 5 of each pavement plate 1 are inserted.
A connection structure of precast concrete paving slabs in which a time-curable material 6 is injected and filled in a gap between and. 2. Steel rods 5 and spacer rods 7 thinner than the steel rods 5 are alternately arranged in series over the through holes 2 of a large number of paving slabs 1 to be connected, and the steel rods 5 are adjacent to each other. The precast concrete pavement slab according to claim 1, wherein the precast concrete pavement slabs are arranged over the slab 1, and the time-curable material 6 is injected and filled in a gap between the through hole 2 of each pavement slab 1 and the steel rod 5 and the spacer rod 7. Connection structure.