The specific embodiment
Below, the joint construction of the building structure of embodiments of the invention is described with reference to Fig. 1-Fig. 5.
The 1st embodiment
Fig. 1-Fig. 3 represents the joint construction 10 of the building structure of the 1st embodiment of the present invention.As shown in Figure 4, the joint construction 10 of this building structure (below, abbreviate joint construction 10 sometimes as.) have corresponding to a plurality of bolts chamber 12 that is provided with at both ends 11a, 11a as the circular arc direction place of a kind of concrete block (building block) 11 of the building structure of the uses such as covering engineering in shield driving tunnel or/and axially (cover engineering the tunnel axially) the joint 14 buried underground of a plurality of bolts chamber 13 of being provided with of both ends 11b, 11b.
Above-mentioned joint 14 has the structure that has the cast iron of high rigidity by ductile iron etc. makes the bolt that bolt hole 15a is set on central axis insert the portion's (connecting portion) 15 of running through, insert the both sides of the peripheral part that runs through portion 15 (at Fig. 1 to this bolt, be upper and lower sides among Fig. 3) outstanding be provided with and in front view (Fig. 3), be the pair of support parts 16 of a linearity up and down, 16 and be located at this support 16, the dowel installation portion 17 of 16 leading section (free end), 17 integrally formed joint front ends 18 are at above-mentioned each dowel installation portion 17,17 rearward end (being the right part in Fig. 1) is fixed with and makes axial region insert the dowel 19 of the parallel direction prolongation of the axis that runs through portion 15 (bolt hole 15a) along above-mentioned bolt, 19.
Above-mentioned bolt inserted run through portion 15 and dowel installation portion 17 is provided with to such an extent that be parallel to each other, and form a front (at Fig. 1, be left end side among Fig. 2) than rear end side (at Fig. 1, among Fig. 2 for the right-hand member side) awl that diameter is bigger a little is arranged on the cylinder-like body of periphery, dowel installation portion 17 runs through portion 15 setting of staggering to the rear side of its axis direction (being the right side in Fig. 1) and bolt insertion, moreover, the above-mentioned support 16 that connects both, 16 the front end of the board body part 16a that the plate face is extended along above-mentioned bolt hole 15a and perpendicular to the reinforcing portion 16b of board body part 16a in conjunction with and the cross section form T word shape, reinforcing portion 16b is along with to its dowel installation portion 17,17 sides (front) move and insert axial rear end side (being the right-hand member side in Fig. 1) deflection that runs through portion 15 to above-mentioned bolt.
Moreover, above-mentioned dowel 19 is arranged at intervals with a plurality of ring-type projecting strip parts axial perpendicular to it vertically and at circumferential interval screw thread joint reinforcing bar known in the prior art of a plurality of projecting strip parts vertically is set by the periphery that in the cross section is the linearity axial region of circle and constitutes, and be incorporated into the screwed hole that is located at above-mentioned dowel installation portion 17 rear portions by the external thread part screw thread that is formed at its leading section, whole connection also is fixed in dowel installation portion 17.Also can connect and be fixed in dowel installation portion 17 dowel 19 is whole by Quench method in so-called.
The joint 14 of above-mentioned formation, be embedded in the end 11a of the circular arc direction of above-mentioned building block 11, as shown in Figure 1, at the end of building block 11 11a, the inner surface 11c side that above-mentioned joint front end 18 is located at building block 11 has peristome 12a (with reference to Fig. 2, between the antetheca 12b that bottom fastening bolt chamber 12 is arranged Fig. 3) and the mating face 11d of building block 11, each dowel 19,19 are positioned at the both sides of bolt chamber 12 (at Fig. 1, be upper and lower sides in 3) it is clipped in the middle, and the bolt insertion runs through the front end face 15b of portion 15 and the mating face 11d alignment of building block 11, is exposed to bolt chamber 12 interior being embedded in the building block 11 thereby bolt inserts the rear end face 15c that runs through portion 15.
In addition, in the portion that buries underground of the above-mentioned joint front end 18 at building block 11 places, the buffer strip 20 that is inserted the outer peripheral face 15d of the front that runs through portion 15 and comprised the gap formation between the front surface of joint front end 18 of front surface 17a of the 16c of the front surface of above-mentioned support 16 (reinforcing portion 16b), above-mentioned dowel installation portion 17 by above-mentioned bolt is located at building block 11.The soft buffer unit 21 that is made of materials such as butyl rubber, other elastic caoutchoucs, polyethylenes is installed on this buffer strip 20.
In the building block 11 that engages adjacency by such joint construction 10,11 o'clock, as shown in Figure 1, with the building block S that engages prior art, the situation of S is identical, the building block 11 of butt adjacency, mating face 11d between 11,11d, and at bolt hole 15a, under the state of the center unanimity of 15a, butt joint 14, the bolt at 14 places inserts the portion 15 of running through, 15 front end face 15b, 15b each other, and it is indoor to make its peristome 12a from bolt chamber 12 run through this bolt, thereby make bolt 22 insertions and run through above-mentioned bolt hole 15a, 15a, by nut 23 screw threads in conjunction with and be fastened on bolt 22, in conjunction with joint 14,14 each other.
Joint construction 10 according to the building structure of above-mentioned the 1st embodiment, joint 14 is embedded in around the junction surface of the bolt chamber 12 of building block 11, front side at the joint 18 at building block 11 places is provided with buffer strip 20, padded coaming 21 is installed on this buffer strip 20, because above-mentioned formation, so insert the bolt 22 fastening and joint building blocks 11 that run through portion 15 at the bolt that will insert and run through above-mentioned joint 14,11 each other the time, thereby even the withdrawal force of joint 14 being extracted from above-mentioned building block 11 by the fastening force effect desire of bolt 22 is subjected to displacement joint front end 18, this displacement also can be absorbed by above-mentioned buffer strip 20.
Therefore, the portion that buries underground of the above-mentioned joint front end 18 at building block 11 places that the formation intensity of bolt chamber 12 has been forced to reduce can be suppressed at effectively owing to because above-mentioned withdrawal force produces stress concentrates, can prevent really because the fastening force of the bolt at the connecting portion place of joint front end 18 makes the connecting portion of the bolt chamber 12 of building block 11 crack the crack on every side.
Therefore, can reinforce building block 11,11 joint each other by the fastening force that increases bolt 22.Moreover, the buffer unit 21 that is installed on above-mentioned buffer strip 20 can absorb the displacement of the joint front end 18 of the above-mentioned joint 14 that the fastening force by bolt 22 causes on one side, on one side this joint front end 18 firmly and flexibly is supported in the building block 11, can also try one's best the drag of extracting from the building block 11 of joint 14 reduce suppress lessly.
In addition, in the joint construction 10 of the foregoing description, simply constitute joint 14 by what a pair of dowel 19,19 only was set in the both sides of joint front end 18, but be not limited to this, the dowel 19 at joint 14 places also can be for more than 3.At this moment, insert the peripheral part that runs through portion 15 at the bolt of above-mentioned joint front end 18 support 16 more than 3 is set, and dowel 19 is set on support 16, or above-mentioned support 16 is diverged to a plurality of, in the portion of diverging to dowel 19 is set, and then, shown in dotted line among Fig. 2, Fig. 3, can also make a plurality of joints 14 that are provided with above-mentioned a pair of dowel 19,19 arranged side by side, and insert the portion 15 of running through with connecting portion 14a connecting bolt.
Moreover, just engage the above-mentioned joint 14 that is embedded with same formation, 14 building block 11,11 each other situations are illustrated, also can be following formation: the joint 14 that is embedded in another building block 11 does not run through portion 15 in the bolt insertion bolt hole 15a is set, but screwed hole is set, and bolt 22 screw threads that will insert from the bolt hole 15a of a joint 14 are in conjunction with being anchored on above-mentioned screwed hole, moreover, also can constitute: bury the insertion thread bush underground in another building block 11 for another, and bolt 22 screw threads that will run through from joint 14 insertions of a building block 11 are in conjunction with being anchored on above-mentioned insertion thread bush (with reference to the Fig. 5 that represents the 2nd embodiment that the back will illustrate), the shape of the joint of another building block 11 does not have particular restriction, so long as got final product by the bolt connection.
The 2nd embodiment
Below, Fig. 5 is the sectional view of joint construction 30 of the building structure of expression the 2nd embodiment of the present invention.The joint construction 30 of this building structure (below, sometimes abbreviate joint construction 30 as) have leading section (in Fig. 5 for left part) have screwed hole 31a connecting portion 31 rear end (axle head) thereby and dowel 32 whole in conjunction with inserting the joint 33 that thread bush constitutes as one, become at the mating face 34c of front end face 31b that makes above-mentioned connecting portion 31 and building block 34 and to be embedded in the end 34a that does not have as the building block (building structure) 34 of the bolt chamber 12,13 of above-mentioned building block 11 under a face and the state perpendicular to mating face 34c.Peripheral part at the connecting portion 31 at above-mentioned building block 34 places (inserting the front of thread bush) is provided with the buffer strip 35 that is made of the annular gap between this peripheral part, is installed on this buffer strip 35 by the buffer unit 36 that constitutes with above-mentioned buffer unit 20 same materials.The shape and the above-mentioned dowel 19 of the dowel 32 of above-mentioned insertion thread bush (joint) 33 are roughly the same.
Joint construction 30 according to above-mentioned formation, in the building block 34 that engages adjacency, 11 o'clock, the building block 11 of butt adjacency, 34 mating face 11d, 34d, and under the screwed hole 31a state consistent with the center of bolt hole 15a, make the front end face 31b of insertion thread bush 33 and the bolt insertion at joint 14 places run through the mutual butt of front end face 15b of portion 15, and its peristome from bolt chamber H is run through in the H of this bolt chamber, thereby bolt 37 is inserted and run through above-mentioned bolt insertion and run through the bolt hole 15a of portion 15, by with this bolt 37 screw threads in conjunction with and be anchored on the screwed hole 31a of above-mentioned insertion thread bush 33, make and insert thread bush 33 and joint 14 combines.
Joint construction 30 according to the building structure of above-mentioned the 2nd embodiment, in the building block 34 that is embedded with as the insertion thread bush of joint 33, the outer circumferential side of the connecting portion of locating in the front side of above-mentioned insertion thread bush 33 31 is provided with buffer strip 35, padded coaming 36 is installed on this buffer strip 35, because above-mentioned formation, thereby so be incorporated into the bolt 37 joint building blocks 34 of above-mentioned connecting portion 31 at binding thread, 11 each other the time, thereby even will insert the withdrawal force that thread bush 33 extracts from above-mentioned building block 34 by the fastening force effect desire of bolt 37 connecting portion 31 is subjected to displacement, this displacement also can be absorbed by above-mentioned buffer strip 35.
Therefore, can suppress effectively can prevent really because the fastening force of the bolt at connecting portion 31 places of insertion thread bush 33 makes the connecting portion at building block 34 places crack the crack on every side owing to above-mentioned withdrawal force is concentrated at the portion's of burying underground generation stress of the above-mentioned connecting portion 31 at building block 34 places.Moreover, with the joint construction 10 identical action effects that also can play of the 1st embodiment based on buffer unit 36.
In addition, be incorporated into the joint of another building block 11 of the insertion thread bush 33 that is embedded in a building block 34, be not limited to the shape of above-mentioned joint 14, as long as bolt 37 screw threads are incorporated into above-mentioned insertion thread bush 33 as screw thread.
In addition, in the joint construction 10,30 of the building structure of above-mentioned the 1st, 2 embodiment, be provided with buffer strip 20,35 respectively at peripheral part as the front of the front surface of the joint front end 18 of the front of above-mentioned joint 14 and joint (insertion thread bush) 33, on this buffer strip 20,35, buffer unit 21,36 is installed, but the present invention is not limited to this, also can omit buffer unit 21,36.
Moreover, used screw thread joint reinforcing bar as dowel 19,32, but dowel 19,32 is not limited to this, also can be in the cross section cross, in-line, axial region zigzag or other shapes be provided with at interval vertically a plurality of perpendicular to axle flange or use other formations.
In addition, the joint construction 10,30 of the building of the various embodiments described above structure is illustrated as engaging concrete block structure each other, but the present invention is not limited to this, also can adopt joint by the inside that the inside that concrete is flowed into be combined with the framework of main wing beam slab and junction plate on the plate outside constitutes concrete concrete structure each other to be housed.
In addition, in the above description,, be illustrated, but the building structure with joint construction of building structure of the present invention is not limited to building block with regard to the example that is applicable to building block 11,34 as the building structure.Thereby the building structure that is used to form the building tectosome so long as engage one another gets final product.For example, slab, wall, bridge structure thing etc.Its shape can be different shapes such as tabular, tubular, case shape, bulk, and its material can adopt concrete construction, steel structure, steel and the compound various combinations such as structure of concrete.
As mentioned above, the present invention can play following more excellent effect.
Joint construction according to the building structure of technical scheme 1, the portion that buries underground at the joint of the building structure that is provided with the bolt chamber, because buffer strip is located at because of the withdrawal force of extracting from the building structure that acts on joint and is easy to generate the concentrated end side of stress, so can effectively prevent from the building structure, to crack the crack, thereby the fastening force that can add king-bolt carries out the joint between the building structure securely by the fastening force of the bolt at the connecting portion place of joint front end.
Joint construction according to the building structure of technical scheme 2, between the mating face and bolt chamber of joint front-end configuration at the building structure, and dowel is configured in the joint that is embedded under the state of both sides, bolt chamber in the building structure, because the buffer strip of the front surface by being located at the joint front end can suppress to because the formation of bolt chamber is concentrated the stress of the building structure part that intensity has been forced to reduce, so can prevent really because the fastening force of the bolt at the connecting portion place of joint front end makes the connecting portion at the place, bolt chamber of building structure crack the crack on every side.
Joint construction according to the building structure of technical scheme 3, in the portion that buries underground by the building structure that inserts the joint that thread bush constitutes, owing to be provided with buffer strip being easy to generate the position that stress concentrates by withdrawal force, so can prevent from effectively on the building structure, to crack the crack by above-mentioned withdrawal force with respect to the building structure that inserts thread bush.
Joint construction according to the building structure of technical scheme 4, thereby directly act on the buffer strip of the periphery that is easy to generate the concentrated connecting portion of bigger stress by the fastening force that is located at bolt, thereby can relax the crackle crack that prevents the building structure for the concentrated stress of building structure really preferably.
Joint construction according to the building structure of technical scheme 5, the buffer unit that is installed on buffer strip can absorb the displacement of the joint that the fastening force by bolt causes on one side, and the crackle crack that prevents the building structure preferably, Yi Bian this joint firmly and flexibly is supported in the building structure.
Joint construction according to the building structure of technical scheme 6, in the joint between the building block of the covering engineering that forms the tunnel, even, also can prevent crackle crack etc. really, so can construct the covering engineering in the high tunnel of reliability because excessive connection power takes place.
Moreover, owing to can suppress to connect the bad generation that operation causes, so can improve the efficiency of construction in tunnel.