CN101634134A - Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof - Google Patents

Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof Download PDF

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Publication number
CN101634134A
CN101634134A CN200810135569A CN200810135569A CN101634134A CN 101634134 A CN101634134 A CN 101634134A CN 200810135569 A CN200810135569 A CN 200810135569A CN 200810135569 A CN200810135569 A CN 200810135569A CN 101634134 A CN101634134 A CN 101634134A
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CN
China
Prior art keywords
reinforcing bar
steel
building block
steel pipe
precast concrete
Prior art date
Application number
CN200810135569A
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Chinese (zh)
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CN101634134B (en
Inventor
金性云
金荣晋
金泰勋
朴世镇
Original Assignee
株式会社大宇建设
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Priority to KR10-2008-0070734 priority Critical
Priority to KR1020080070734A priority patent/KR101036852B1/en
Priority to KR1020080070734 priority
Application filed by 株式会社大宇建设 filed Critical 株式会社大宇建设
Publication of CN101634134A publication Critical patent/CN101634134A/en
Application granted granted Critical
Publication of CN101634134B publication Critical patent/CN101634134B/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/28Concrete reinforced prestressed
    • E01D2101/285Composite prestressed concrete-metal

Abstract

A PSC bridge pier assembled with precast concrete segments having steel ducts and steel pipes and rebars, and a constructing method thereof are provided to erect steel wires while accumulating the segments by installing steel wire supporting steel pipes between the steel wire and a sheath pipe. A constructing method of PSC bridge pier assembled with precast concrete segments(120) having steel ducts and steel pipes and rebars(210) includes the steps of: constructing a footing(110) including sheath pipes, steel wires inserted in the sheath pipes, shear connectors which protrude upwards, rebar holes formed between the shear connectors; inserting a steel wire supporting steel pipe having the same length with the steel wire between the sheath pipe and the steel wire; inserting the rebars in the rebar holes; mounting the segment on the footing by inserting the shear connectors into connection sockets of the segment, wherein the segment includes shear connectors, the connection sockets, and rebar holes which are in lines with the rebar holes of the footing; mounting another segments on the segment by inserting shear connectors into the connection sockets; forming a coping portion(130) on the top surface of the highest segment; and removing the steel wire supporting steel pipes, fixing the stretched steel wires, and fixing the rebars.

Description

Utilize the reinforced concrete knoll and the job practices thereof of precast concrete segment assembling

Technical field

The present invention relates to utilize the reinforced concrete knoll and the job practices thereof of precast concrete segment assembling, more particularly, the preceding end connection that utilizes short and small steel conduit partly is arranged in pier foundation and the building block with steel conduit, steel pipe and reinforcing bar; The connection socket portion of utilizing short and small steel conduit is arranged on building block and the bent cap; For the degree of freedom of steel wire, steel pipe is inserted between sleeve pipe and the steel wire; Utilization has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and the reinforcing bar that can partly imbed reinforcing bar between steel wire and steel wire.

Background technology

Usually, carry out the bridge construction of concrete pouring at the scene,, reduced this job practices recently in a large number because of reasons such as its engineering time length, initiation environmental problem and resentment problems.Replace the rapid constructing method that adopts prefabricated building block to assemble at the scene.

Above-mentioned rapid constructing method develops into gradually and shortens the whole bridge construction time and make environmental problem and the minimized scheme of resentment problem, and this rapid constructing method need use Large-Scale Equipment, therefore helps the mechanization of built environment.

When assembling this building block, can connect by front end, be provided with the front end key, with the preceding end resistance of performance based on mechanical connection in order to make the discontinuity surface between the building block.If precast concrete segment then when making building block, forms this front end key in a side of building block with boss shapes.But the front end key that forms with boss shapes in a side of building block causes fractureing of front end key easily because of careless when taking off mould.When particularly more little the and length that it is protruding of the specification of front end key is big more, the phenomenon that easier generation front end key fractures in building block manufacturing process.Moreover, if the part of the front end key that forms in mould fill concrete fully then usually can not form the front end key with desired shape when the demoulding.

On the one hand, when in adjacent building block, continuously presstressed reinforcing steel being set, on the discontinuity surface between the building block, might producing and leak.Being provided with in the operation of presstressed reinforcing steel, discontinuity surface between building block, leaking of promptly producing on the mating face of building block causes the corrosion of presstressed reinforcing steel, and this will cause the presstressed reinforcing steel damage, thereby may cause serious consequence to the overall structure thing, as the collapse that causes works etc.Then, when assembling building block continuously, need to adopt extra special measure to prevent to be arranged at continuously the corrosion of the presstressed reinforcing steel in the building block.

In order to address the above problem, it is the patent of 10-0738999 (have the precast concrete segment of the package assembly of utilizing the steel conduit and assemble structure) that the applicant has proposed registration number.

As shown in Figure 1, in the inside of the precast concrete segment 10 with package assembly of utilizing described steel conduit (being designated hereinafter simply as " building block "),,, imbedded the steel conduit that is used for the front end connection with the state that connects towards the mounting direction of building block 10.Described steel conduit is made of the cylindrical steel tube that is used to support steel wire, and the presstressed reinforcing steel that is used to import pulling force is arranged in the building block 10 with the state that connects described steel conduit 20.

As shown in the figure, the bottom of described steel conduit 20 is corresponding to below the described building block 10, but not to outer projection; The upper end of described steel conduit 20 be positioned at building block 10 above, and to outer projection.As described below, in assembling during building block 10, the upper end of described steel conduit 20 to outer projection is inserted in the bottom of the steel conduit of burying underground in the adjacent block 10 20.Between adjacent block 10, for the insertion that makes described steel conduit 20 is oversimplified, the bottom of described steel conduit 20 is made of the extended expansion tube department 21 of diameter, and, be formed with the taper draw portion 23 that diameter reduces gradually in the upper end of described steel conduit 20 with respect to the formation of this expansion tube department 21.

But owing to the end at the steel conduit forms draw portion and forms expansion tube department at the other end, therefore in the length lengthening of building block, the length of steel conduit also extends thereupon, thereby causes the increase of construction cost.

In addition, sleeve pipe is arranged on the pier foundation, is inserted with the steel wire identical with the pier total length in sleeve pipe, steel wire produces bending when piling up building block then, thereby causes the problem that difficulty is piled up in building block.

And, when the building block that is applied to pier is connected with pier foundation, on pier foundation, do not form the leading section that is connected with building block, thereby the connection difficulty between building block and the pier foundation, thereby the junction surface front end may be destroyed.

And, in pier structure, come the energy releasability of resistant to bending reinforced concrete knoll to descend with steel wire, and because of a lot of steel of needs and fixture, and increase construction cost.

Summary of the invention

In order to address the above problem, the invention provides reinforced concrete knoll and the job practices thereof of utilizing precast concrete segment assembling with steel conduit, steel pipe and reinforcing bar, partly be arranged in pier foundation and the building block by the preceding end connection that will utilize short and small steel conduit, and be arranged on building block and the bent cap by the connection socket portion that will utilize short and small steel conduit, thereby prevent the increase of construction cost, make the connection between building block and the pier foundation simple, and prevent that the front end at junction surface from destroying.

And, utilization provided by the invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, degree of freedom for steel wire, steel pipe is inserted between sleeve pipe and the steel wire, thereby steel wire is upright with steel tube place by the steel wire support when piling up building block, thereby but has improved application property.

And, utilization provided by the invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, by reinforcing bar being arranged between steel wire and the steel wire, make reinforcing bar bear the part by steel wire bear crooked the time resistance, thereby make it have the same performance of performance that has when only making of steel, and reduced the number of steel and fixture, thereby improved economy.

And, utilization provided by the invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, corner to pier foundation and building block carries out chamfering, adhere to packaging part in the above, thereby between building block, carry out waterproof, and add color to packaging part, thereby make it have aesthetical perception.

To achieve these goals, being characterized as of reinforced concrete construction method of the present invention:

When carrying out the pier foundation construction, have a plurality of basis with sleeve pipe, with the identical prolongation of length of pier and be inserted in described basis with the steel wire in the sleeve pipe, be used for that front end connects be through with described steel wire a plurality of before end connection interior to top projection, before each, use the pier foundation working procedure of reinforcing bar patchhole between the end connection towards the basis that vertical downward direction formation has a certain depth; Insert operation with the support steel wire of steel pipe with steel pipe to described pier foundation inserts that the described basis that is provided with is inserted between with sleeve pipe and steel wire and described steel wire has an equal length support steel wire; Operation is inserted with the reinforcing bar that inserts reinforcing bar in the reinforcing bar patchhole in the basis of described pier foundation; With building block respectively connect slot and above the described pier foundation each before end connection one to engage accordingly, thereby described building block is deposited in the first top accumulation operation of described pier foundation, have above the described building block a plurality of before end connections, the bottom surface corresponding with it has a plurality of connection slots and has with described basis more corresponding and towards the building block reinforcing bar patchhole of vertical downward direction perforation than 1 with reinforcing bar patchhole one to one or N; The slot one to one that respectively is connected of end connection before each of described building block and adjacent block is bonded with each other accordingly, piles up operation thereby second of multistage is piled in building block; The bent cap of formation bent cap forms operation on the building block of the top; And remove described steel wire and support the fixedly operation of described reinforcing bar being fixed when the described steel wire of tension is fixed behind the steel pipe.

Wherein, on described pier foundation, be provided with to make not have and shrink the building block pit that mortar is attached easily, also insert in the described pit and be provided with the valve rubber that is used for the maintenance level and is used to fill nothing contraction mortar.

Wherein, described basis is the desired degree of depth when satisfying fixedly with the degree of depth of reinforcing bar patchhole.

Wherein, described building block has for described steel wire and steel wire are supported with steel pipe by perforation and corresponding and extend to the building block sleeve pipe that is connected on the slot from described preceding end connection lower end with sleeve pipe one to one ground with described basis.

Wherein, the top and bottom corner of the corner, bottom surface of the top building block of described building block, building block and the building block adjacent with the top building block bottom forms chamfered section respectively, and is formed with packaging part in described chamfered section.

Wherein, the lateral surface of the described preceding end connection of described building block is arranged at intervals with the first encapsulation groove of ring-type at a certain distance, is provided with the first encapsulation valve rubber in the described first encapsulation groove.

Wherein, described first encapsulation contacts with the top and described bottom surface that is connected slot of valve rubber.

Wherein, the described building block that is positioned at above the described building block is arranged at intervals with the second encapsulation groove of ring-type at a certain distance with the lateral surface of reinforcing bar patchhole, is provided with the second encapsulation valve rubber in the described second encapsulation groove.

Wherein, in described pier foundation, described steel wire supports with steel pipe is supported and fixes with reinforcing bar, is removed when piling up building block.

Wherein, described reinforcing bar is supported with described steel wire with reinforcing bar by described support and is fixed with steel pipe.

Wherein, the described bent cap of cast-in-site on building block topmost, perhaps the prefabricated bent cap that is built into is deposited in the top building block above.

Wherein,, be formed with the connection slot on the position corresponding with end connection before the described building block one in the bottom surface of described bent cap, with described building block with being formed with bent cap reinforcing bar patchhole on the corresponding position of reinforcing bar one to.

Wherein, described bent cap also has corresponding with sleeve pipe one to one ground with described building block, described steel wire and steel wire is supported connected with steel pipe, and extend to the bent cap sleeve pipe that connects the slot upper end from described preceding end connection lower end.

Wherein, described preceding end connection is the cylindrical shape of opening above or is that top and bottom are all opened and the narrow taper that broadens gradually to the lower end in upper end.

Wherein, described connection slot is the cylindrical shape of last face closure and open underneath, and superincumbent core has and is used to connect described basis with sleeve pipe or the building block through hole with sleeve pipe.

Wherein, described before end connection and when being connected slot and being bonded with each other, maintain gap (Gap), and filling has or not the contraction mortar at this gap, preceding end connection and in being connected slot.

Wherein, pile up in the operation, on described building block, behind the coating cement, adjacent building block is piled up described second.

Wherein, described reinforcing bar extends to identical with the length of pier.

Wherein, the part of described reinforcing bar extends to the length of pier, and remaining reinforcing bar extends to the certain altitude of pier, and is provided with more reinforcing bar in the bottom of pier.

Wherein, described reinforcing bar forms for being extended by union or sleeve by plural reinforcing bar.

Wherein, described basic with reinforcing bar patchhole, building block reinforcing bar patchhole and the bent cap reinforcing bar patchhole internal diameter bigger than the diameter of described reinforcing bar, and fill nothing in inside and shrink mortar to fix described reinforcing bar.

Another feature of the present invention is:

The reinforced concrete knoll of the precast concrete segment assembling that the job practices construction of the reinforced concrete knoll by described precast concrete segment assembling with steel conduit, steel pipe and reinforcing bar forms with steel conduit, steel pipe and reinforcing bar.

Utilization of the present invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, partly be arranged in pier foundation and the building block by the preceding end connection that will utilize short and small steel conduit, thereby prevent the increase of construction cost, make the connection between building block and the pier foundation simple, and prevent that the front end at junction surface from destroying.

And the present invention is inserted in steel pipe between sleeve pipe and the steel wire for the degree of freedom of steel wire, thereby steel wire is upright with steel tube place by the steel wire support when piling up building block, thereby but improved application property, and the engineering time that shortens.

And, the present invention is arranged on reinforcing bar between steel wire and the steel wire, make steel wire bear part by steel wire bear crooked the time resistance, thereby make it have the same performance of performance that has when only making of steel, and reduced the number of steel and fixture, thereby improved economy.

And the present invention carries out chamfering to the corner of pier foundation and building block, adheres to packaging part in the above, thereby carries out waterproof between building block, and adds color to packaging part, thereby makes it have aesthetical perception.

Description of drawings

Fig. 1 is the structural representation of the building block of the existing package assembly of utilizing the steel conduit;

Fig. 2 has the perspective view of pier foundation in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;

Fig. 3 is an A-A sectional view among Fig. 2;

Fig. 4 is the plan view of Fig. 2;

Fig. 5 has the perspective view of building block in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;

Fig. 6 has the bottom surface perspective view of building block in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;

Fig. 7 is the B-B sectional view of Fig. 6;

Fig. 8 has the texture edge schematic diagram of reinforced concrete knoll middle cover beam of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;

The perspective view of end connection Fig. 9 a and Fig. 9 b have in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention before;

Figure 10 has the perspective view that is connected slot in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;

Figure 11 a and Figure 11 b have the structural section schematic diagram of reinforcing bar in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;

Figure 12 has the sectional view of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;

Figure 13 has the sectional view of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for the utilization of another embodiment of the present invention;

Figure 14 assembles the simple process chart of the job practices of reinforced concrete knoll for the precast concrete segment that utilization of the present invention has steel conduit, steel pipe and reinforcing bar;

Figure 15 a to Figure 15 h is used to illustrate that utilization of the present invention has the process chart of job practices of the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar.

Description of reference numerals

110: pier foundation 120: building block

130: bent cap 201: steel wire

203: preceding end connection 205: connect slot

207: steel wire supports with steel pipe 210: reinforcing bar

The specific embodiment

Below, the utilization that present invention will be described in detail with reference to the accompanying has the structure of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar.

Below when the present invention will be described, if purport of the present invention is produced unnecessary when obscuring with specifying of known function or structurally associated, its detailed description will be omitted.And term described later is a term of considering that function in the present invention defines, and this can be according to factors such as user, utilization person's intention or customs and be different, so the definition that should carry out based on this manual full content of its definition.

Fig. 2 has the steel conduit for utilization of the present invention, the perspective view of pier foundation in the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar, Fig. 3 is the sectional view of A-A among Fig. 2, Fig. 4 is the plan view of Fig. 2, Fig. 5 has the steel conduit for utilization of the present invention, the perspective view of building block in the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar, Fig. 6 has the steel conduit for utilization of the present invention, the bottom surface perspective view of building block in the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar, Fig. 7 is the sectional view of the B-B of Fig. 6, Fig. 8 has the steel conduit for utilization of the present invention, the side structure schematic diagram of the reinforced concrete knoll middle cover beam of the precast concrete segment assembling of steel pipe and reinforcing bar, Fig. 9 a and Fig. 9 b have the steel conduit for utilization of the present invention, the perspective view of end connection before in the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar, Figure 10 has the steel conduit for utilization of the present invention, the perspective view that is connected slot in the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar, Figure 11 a and Figure 11 b have the steel conduit for utilization of the present invention, the structural section schematic diagram of reinforcing bar in the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar, Figure 12 has the steel conduit for utilization of the present invention, the sectional view of the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar, Figure 13 has the steel conduit for the utilization of another embodiment of the present invention, the sectional view of the reinforced concrete knoll of the precast concrete segment assembling of steel pipe and reinforcing bar.

To shown in Figure 13, pier foundation 110 cast on-site form as Fig. 2, end connection 203 before the upper end is inserted be used for that front end connects a plurality of, and preceding end connection 203 is protruding upward.

Then, pier foundation 110 have a plurality of basis with sleeve pipe 111 and on this basis the steel wire of that insert and the identical prolongation of length pier in sleeve pipe, the surface of pit 113 is chiseled (Chipping) and is made and do not have to shrink that mortar is easier to be adhered to, also be inserted with in the pit 113 be used for the maintenance level and be used to prevent the valve rubber 115 that leaks when shrinking mortar filling not have.At this moment, the basis is connected with the fixture 202 that is used for fixing steel wire 201 with an end of sleeve pipe 111.

And the top corner of pier foundation 110 has been preferably formed as chamfered section 117, prevents to be added the destruction of pressure device etc.

And, before each, be formed with the basis reinforcing bar patchhole 119 of certain depth on the pier foundation 110 between the end connection 203 towards vertical downward direction, wherein, the basis is with the degree of depth of the reinforcing bar patchhole 119 needed degree of depth when satisfying fixedly reinforcing bar 210, wherein, the basis forms for when constructing pier foundation 110 plastic conduit, steel pipe etc. being imbedded with reinforcing bar patchhole 119, and this can form by the job practices that forms conventional hole.

On the one hand, after the maintenance of pier foundation 110 was finished, the insertion steel wire support steel pipe 207 identical with steel wire 201 length between the basis is with sleeve pipe 111 and steel wire 201 used fixedly steel wire support steel pipe 207 of reinforcing bar 101 with supporting.

To shown in Figure 7, building block 120 is lineal hexahedral or cylindrical shape as Fig. 5, and for substantial or hollow form, has a plurality of preceding end connections 203 and have a plurality of slots 205 that are connected in the bottom surface corresponding with it on building block.

In addition, building block 120 also has for steel wire 201 and steel wire are supported with steel pipe 207 and is connected and corresponding and the past end connection 203 lower ends extend to the building block usefulness sleeve pipe 121 that is connected slot 205 upper ends with sleeve pipe 111 one to one ground with the basis.

In addition, the corner of building block 120 is formed with chamfered section 122, and engaging on chamfered section 122 has packaging part 123.Before the lateral surface of end connection 203 be arranged at intervals with at a certain distance and be provided with first encapsulation in the first encapsulation groove, 124, the first encapsulation grooves 124 of ring-type and contact with the bottom surface that is connected slot 205 with the top of valve rubber 125 with valve rubber 125, the first encapsulation.At this moment, can pour into a mould mortar to replace packaging part 123.

And, building block 120 and basis with reinforcing bar patchhole 119 one to one or N than one (for example 2 to 1,3 to 1) correspondence, has the building block reinforcing bar patchhole 126 that connects towards vertical downward direction, wherein, building block forms for plastic conduit, steel pipe etc. being imbedded when the construction pier foundation 110 with reinforcing bar patchhole 126, and this can construct by the job practices that forms conventional hole.

And, the second encapsulation groove 127 that is formed with ring-type is isolated in the building block that is positioned at above the building block 120 at a certain distance with the end of reinforcing bar patchhole 126, be provided with second encapsulation in the second encapsulation groove 127 with valve rubber 128, do not discharge to the outside when having the mortar of contraction to prevent to fill.

As Fig. 8 to shown in Figure 12, bent cap 130 cast-in-site on building block topmost form or prefabricated after be deposited in building block topmost above form.

And,, be formed with on the position corresponding and connect slot 205 with the preceding end connection 203 one to of building block 120 in the bottom surface of bent cap 130.Bent cap 130 also has corresponding with sleeve pipe 121 one to one ground with building block, making steel wire 201 and steel wire support is connected with steel pipe 207, and end connection 203 lower ends extend to the bent cap sleeve pipe 131 that connects slot 205 upper ends in the past, with building block with being formed with bent cap on the corresponding position of reinforcing bar patchhole 126 one to reinforcing bar patchhole 133, wherein, bent cap forms for plastic conduit, steel pipe etc. being imbedded when the construction pier foundation 110 with reinforcing bar patchhole 133, and this can construct by the job practices in the conventional hole of constructing.

On the one hand, shown in Fig. 9 a, the preceding end connection 203 that is formed in pier foundation 110 and the building block 120 of the present invention is the open cylindrical shape in the top and bottom of steel, wherein, shown in Fig. 9 b, preceding end connection 203 is can also be for top and bottom open and the upper end is narrow, the taper that broadens gradually to the lower end.

In addition, as shown in figure 10, what be formed at building block 120 and bent cap 130 is connected slot 205 cylindrical shape for last face closure and open underneath, and is positioned at top core and also has and be used to connect the basis with sleeve pipe 111 or the building block through hole 206 with sleeve pipe 121.

On the one hand, preceding end connection 203 maintains clearance G when being connected slot 205 and being bonded with each other, and filling at clearance G, preceding end connection 203 with in being connected slot 205 does not have the mortar of contraction.

In addition, the basis has or not contraction mortar with sleeve pipe 121 and bent cap with filling in the sleeve pipe 131 with sleeve pipe 111 and building block, makes that being positioned at inner steel wire 201 keeps tightening force.

In addition, as shown in figure 12, reinforcing bar 210 extends to the length identical with the length of pier; Perhaps as shown in figure 13, reinforcing bar 210 can also extend to the identical length of length of a part of pier, and remaining reinforcing bar 210 extends to the setting height of pier, and is provided with more reinforcing bar 210 in the bottom of pier.At this moment, reinforcing bar 210 numbers are identical with the number of steel wire 201, and perhaps the number than steel wire 201 is more.

In addition, shown in Figure 11 a, reinforcing bar 210 can form plural reinforcing bar 210 by union 211 extensions.Shown in Figure 11 b, plural reinforcing bar 210 is formed by sleeve 213 extensions, wherein, union 211 and sleeve 213 are conventional known configurations, therefore omit its detailed explanation.

In addition, the basis with reinforcing bar patchhole 119 and building block with reinforcing bar patchhole 126 and bent cap with the internal diameter of reinforcing bar patchhole 133 diameter greater than reinforcing bar 210, do not have the mortar of contraction to fill in inside, thus fixing reinforcing bar 210.

Below, by the accompanying drawing that adds, describe the job practices that utilization of the present invention has the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar in detail.

Figure 14 has the simple process chart of job practices of the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar for utilization of the present invention, Figure 15 a to Figure 15 h is used to illustrate that utilization of the present invention has the process chart of job practices of the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar.

At first, shown in Figure 14 and Figure 15 a, at ground surface construction pier foundation 110, be specially: have a plurality of basis with sleeve pipe 111, with the identical prolongation of length of pier and be inserted in described basis with 111 steel wire 201 in the sleeve pipe, be used for that front end connects be through with steel wire 201 a plurality of before end connection 203 protruding upward, before each, have basis reinforcing bar patchhole 119 (S110) of certain depth between the end connection 203 towards vertical downward direction formation.At this moment, pier foundation 110 is by water booster system, in the ground surface operation of pressurizeing.

And, shown in Figure 15 b, between the basis of inserting setting on the pier foundation 110 is with sleeve pipe 111 and steel wire 201, insert the steel wire identical and support with steel pipe 207 (S120) with steel wire 201 length.At this moment, preferably, the steel wire support is fixed in support reinforcing bar 101 with steel pipe 207.

Then, shown in Figure 15 c, use insertion reinforcing bar 210 (S130) in the reinforcing bar patchhole 119 on the basis of pier foundation 110.At this moment, as shown in figure 13, for more reinforcing bar 210 is set at pedestal, with the reinforcing bar of different length, promptly the part reinforcing bar that extends to the reinforcing bar of length of pier and the remaining height that extends to pier is inserted into the basis with reinforcing bar patchhole 119.

In addition, shown in Figure 15 d, with the building block 120 of making be deposited in pier foundation 110 above, use the level of pit 113 for the building block that keeps pier foundation 110, under the state that is provided with valve rubber 115, the connection slot 205 of building block 120 and the preceding end connection 203 one to of pier foundation 110 are engaged (S140) accordingly.At this moment, by the building block sleeve pipe 121 of building block 120, steel wire 201 and steel wire support with steel pipe 207 and connect building blocks 120, by the building block reinforcing bar patchhole 126 of building block 120, and reinforcing bar 210 perforation building blocks 120.And,, do not have the mortar of contraction with filling in the pit 113 in building block by the space between the valve rubber 115.

Shown in Figure 15 e, in this state, the building block 120 that will be built into design height again be deposited in successively be positioned at the building block 120 of having piled up above the pier foundation 110 above.At this moment, connect slot 205 and preceding end connection 203 one to be bonded with each other accordingly (S150).At this moment, will support with reinforcing bar 101 and support with removing steel pipe 207 and the reinforcing bar 210, to pile up building block 120 from steel wire.In addition, with the bottom surface epoxy resin coating of the top adjacent building block 120 of building block 120, so that it mutually combines.On the one hand, as shown in figure 13, for more reinforcing bar 210 is set at pedestal, the reinforcing bar 210 of earlier securing elongated certain altitude to pier, building block 120 multistages are stacked into after the height of reinforcing bar 210, building block reinforcing bar patchhole 126 by the top building block, pour into and do not have the mortar of contraction, with fill in reinforcing bar patchhole 119 with the basis of reinforcing bar patchhole 126 and pier foundation 110 in the building block of each building block 120 do not have the contraction mortar after, maintenance is finished, make reinforcing bar 210 fixing, again building block 120 is piled up by above-mentioned process afterwards.

Then, shown in Figure 15 f, cast-in-site the bent cap 130 or prefabricated bent cap that is built into 130 is deposited in above the building block topmost on building block topmost, this moment preceding end connection 203 be connected slot 205 be bonded with each other (S160).At this moment,, with sleeve pipe 131 steel wire 201 and steel wire are supported with steel pipe 207 discharges by bent cap; , with reinforcing bar patchhole 133 reinforcing bar 210 is discharged by bent cap.

Then, shown in Figure 15 g, steel wire is supported with after steel pipe 207 extractions, tension steel wire 201 is also fixing, pour nothing by bent cap into reinforcing bar patchhole 133 and shrink mortar, there is not the contraction mortar to fill in reinforcing bar patchhole 119 with reinforcing bar patchhole 126 and basis with reinforcing bar patchhole 133, building block at bent cap, thus fixing reinforcing bar 210 (S170).At this moment, fixedly the conventional method of steel wire 201 is: engage fixture 202 and tension in the top, fixture 202 by pier foundation 110 is filled mortar in sleeve pipe 111 is used on the basis, to fill mortar with sleeve pipe 121 and bent cap with the total length direction of sleeve pipe 131 to building block.And by the second encapsulation valve rubber 128, shrinking mortar with reinforcing bar patchhole 133 and building block with the nothing of reinforcing bar patchhole 126 fillings to bent cap can be to external leaks.

In addition, forward end connector 203 be connected inner filling of slot 205 and do not have the mortar of contraction.At this moment, by encapsulating with valve rubber 129 with first of the bottom surface contact that is connected slot 205, not having the mortar of contraction can be to external leaks.

On the one hand, shown in Figure 15 h, after finishing pier construction, between the adjacent building block 120 and building block 120, promptly the packaging part 123 different with concrete color is set and encapsulates in chamfered section 122.At this moment,, and can in the banking process of building block 120, packaging part 123 be enclosed replacing packaging part 123 by the cast mortar.

In addition, can also be after piling up pier foundation 110, building block 120 and bent cap 130, bent cap by bent cap 130 is inserted into building block with reinforcing bar patchhole 126 and basic inside with reinforcing bar patchhole 119 with reinforcing bar patchhole 133 with reinforcing bar 120, fills then and does not have the mortar of contraction.

The present invention can take or be changed to various ways, and the detailed description of described invention has illustrated the embodiment that it is concrete.What it should be understood that is that protection scope of the present invention is not to be limited to the specific embodiment of mentioning in the detailed description, but is limited by the request scope that is included in claims, and is included in all distortion and sub in the purport scope of the present invention.

Claims (23)

1, a kind of utilization has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that this job practices comprises:
The pier foundation working procedure, wherein, when carrying out the pier foundation construction, a plurality of bases sleeve pipe is arranged, with the identical prolongation of length of pier and be inserted in described basis with the steel wire in the sleeve pipe, the a plurality of preceding end connection that is through with described steel wire that is used for the front end connection is protruding upward, forms the basis reinforcing bar patchhole with certain depth towards vertical downward direction between the end connection before each;
Support steel wire and insert operation, wherein, insert the support steel wire steel pipe that insert between with sleeve pipe and steel wire on the described basis that is provided with and described steel wire has equal length to described pier foundation with steel pipe;
Use the reinforcing bar that inserts reinforcing bar in the reinforcing bar patchhole to insert operation to the basis of described pier foundation;
First piles up operation, wherein, with building block respectively connect slot and above the described pier foundation each before end connection one to engage accordingly, thereby with described building block be deposited in described pier foundation above, have above the described building block a plurality of before end connections, the bottom surface corresponding with it has a plurality of connection slots and has with described basis more corresponding and towards the building block reinforcing bar patchhole of vertical downward direction perforation than one with reinforcing bar patchhole one to one or N;
Second piles up operation, wherein, the slot one to that respectively is connected of end connection before each of described building block and adjacent block is bonded with each other accordingly, thereby multistage is piled in building block;
The bent cap of formation bent cap forms operation on the building block of the top; And
Remove described steel wire and support when the described steel wire of tension is fixed behind the steel pipe, the fixedly operation that described reinforcing bar is fixed.
2, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Being provided with to make on described pier foundation does not have the building block pit that the contraction mortar is attached easily, also inserts in this pit to be provided with to be used for the maintenance level and valve rubber that be used to fill nothing contraction mortar.
3, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Described basis is the desired degree of depth when satisfying fixedly with the degree of depth of reinforcing bar patchhole.
4, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Described building block have for make described steel wire and steel wire support with steel pipe by perforation and with described basis with sleeve pipe one to one ground corresponding and extend to the building block sleeve pipe that is connected on the slot from described preceding end connection lower end.
5, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The top and bottom corner of the bottom surface corner of the top building block of described building block, building block and the building block adjacent with the top building block bottom is formed with chamfered section respectively, and is formed with packaging part in this chamfered section.
6, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The lateral surface of the described preceding end connection of described building block is provided with the first encapsulation valve rubber to be arranged at intervals with the first encapsulation groove of ring-type in this first encapsulation groove.
7, utilization according to claim 6 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Described first encapsulation contacts with the top and described bottom surface that is connected slot of valve rubber.
8, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The described building block that is positioned at above the described building block is arranged at intervals with the second encapsulation groove of ring-type with the lateral surface of reinforcing bar patchhole, is provided with the second encapsulation valve rubber in this second encapsulation groove.
9, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
In described pier foundation, described steel wire supports with steel pipe is supported and fixes with reinforcing bar, is removed when piling up building block.
10, utilization according to claim 9 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
By described support reinforcing bar, described reinforcing bar supports with described steel wire and is fixed with steel pipe.
11, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The described bent cap of cast-in-site on building block topmost, perhaps the prefabricated bent cap that is built into is deposited in the top building block above.
12, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
In the bottom surface of described bent cap, be formed with the connection slot on the position corresponding with end connection before the described building block one to, with described building block with being formed with bent cap reinforcing bar patchhole on the corresponding position of reinforcing bar one to.
13, utilization according to claim 11 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Described bent cap also has corresponding with sleeve pipe one to one ground with described building block, described steel wire and steel wire is supported connected with steel pipe, and extend to the bent cap sleeve pipe that connects the slot upper end from described preceding end connection lower end.
14, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
End connection is the cylindrical shape of opening above before described, the perhaps all open and narrow taper that broadens gradually to the lower end in upper end for top and bottom.
15, utilization according to claim 4 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Described connection slot is the cylindrical shape of last face closure and open underneath, and superincumbent core has and is used to connect described basis with sleeve pipe or the building block through hole with sleeve pipe.
16, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
End connection and when being connected slot and being bonded with each other before described maintains the gap, and filling has or not the contraction mortar at this gap, preceding end connection and in being connected slot.
17, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Pile up in the operation described second, on described building block, behind the coating cement, adjacent building block is piled up.
18, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
It is identical with the length of pier that described reinforcing bar extends to.
19, utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The part of described reinforcing bar extends to the length of pier, and remaining reinforcing bar extends to the predetermined altitude of pier, and is provided with more reinforcing bar in the bottom of pier.
20, have the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar according to claim 18 or 19 described utilizations, it is characterized in that,
Described reinforcing bar forms for being extended by union by plural reinforcing bar.
21, have the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar according to claim 18 or 19 described utilizations, it is characterized in that,
Described reinforcing bar forms for being extended by sleeve by plural reinforcing bar.
22, have the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar according to any described utilization in the claim 1 to 12, it is characterized in that,
Described basis has than the diameter of described reinforcing bar bigger internal diameter with reinforcing bar patchhole and bent cap with the reinforcing bar patchhole with reinforcing bar patchhole, building block, and fills nothing in inside and shrink mortar, with fixing described reinforcing bar.
23, the reinforced concrete knoll of the precast concrete segment assembling that forms of a kind of job practices construction of the reinforced concrete knoll by the described precast concrete segment assembling with steel conduit, steel pipe and reinforcing bar of claim 1 with steel conduit, steel pipe and reinforcing bar.
CN2008101355693A 2008-07-21 2008-09-03 Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof CN101634134B (en)

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CN102409608A (en) * 2011-11-30 2012-04-11 上海市城市建设设计研究总院 Prefabricated assembling structure of concrete upright post bearing platform as well as assembling and positioning process of prefabricated assembling structure
CN105970803A (en) * 2016-06-03 2016-09-28 南京工业大学 Shearing resisting energy consumption device and construction method of prefabricated pier
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CN101694087B (en) * 2009-10-13 2011-05-11 毕承会 Method for building novel bridge
CN102277828A (en) * 2011-05-17 2011-12-14 四川省交通运输厅公路规划勘察设计研究院 Steel and concrete combined box-shaped structured pier
CN102277828B (en) * 2011-05-17 2013-12-04 四川省交通运输厅公路规划勘察设计研究院 Steel and concrete combined box-shaped structured pier
CN102409608A (en) * 2011-11-30 2012-04-11 上海市城市建设设计研究总院 Prefabricated assembling structure of concrete upright post bearing platform as well as assembling and positioning process of prefabricated assembling structure
CN106192728A (en) * 2015-03-13 2016-12-07 宋裕祺 Precasting locking nub, its stacked structure and energy dissipating post
CN105970803A (en) * 2016-06-03 2016-09-28 南京工业大学 Shearing resisting energy consumption device and construction method of prefabricated pier
CN110080093A (en) * 2019-06-12 2019-08-02 重庆锦森腾建筑工程咨询有限公司 A kind of assembled bridge pier and its construction method

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