CN206298822U

CN206298822U - The seamless pavement structure that optimization CRCP is connected with floorings

Info

Publication number: CN206298822U
Application number: CN201621366527.7U
Authority: CN
Inventors: 庄舟; 庄一舟; 程俊峰; 王静杰; 林友炜
Original assignee: Fuzhou University
Current assignee: Fuzhou University
Priority date: 2016-12-14
Filing date: 2016-12-14
Publication date: 2017-07-04
Anticipated expiration: 2026-12-14

Abstract

The utility model is related to the seamless pavement structure that a kind of optimization CRCP is connected with floorings, transition pavement including connection CRCP with floorings, the CRCP, transition pavement and floorings are comprising the asphalt concrete layer and reinforced concrete floor that order is set from top to down, the bar-mat reinforcement interlocked by transverse steel and longitudinal reinforcement transverse and longitudinal is provided with the reinforced concrete floor, the bar-mat reinforcement of the CRCP, the bar-mat reinforcement of transition pavement and the bar-mat reinforcement of floorings are coupled to each other together, the reinforced concrete floor of the CRCP, the reinforced concrete floor of transition pavement and the reinforced concrete floor of floorings are integrated to pour and form, the asphalt concrete layer of the CRCP, the asphalt concrete layer of transition pavement and the asphalt concrete layer of floorings are integrated to pave and form.The utility model simple structure, cost-effective, excellent ride quality, less noise simplifies the characteristics of constructing, with certain realistic meaning.

Description

The seamless pavement structure that optimization CRCP is connected with floorings

Technical field

The utility model is related to the seamless pavement structure that a kind of optimization CRCP is connected with floorings.

Background technology

At present, with growing, the continuous reinforcement concrete topping of engineering technology（CRCP）Use also more and more popularize, though Right continuous reinforcement concrete topping is because of the effect of contraction of its continuous reinforcement, but the crack of CRCP can continue to keep being in close contact, and split Seam width very little, it is ensured that the transmission of load, prevents rainwater from invading the advantages such as corrosion reinforcing bar and being favored by engineers, but Connection between conventional CRCP and floorings be all by hazard to bridge's pier or plate of leading the way, because its three separately designs construction, Grappling is installed on road surface of having to be led the way after each Abutment Back because of the difference such as its rigidity, construction, and each end of the bridge is connected with leading the way Place sets retractor device；Thus, although lead the way plate and floorings, CRCP connecting portions of short time will not occur larger damage It is bad, but it is of long duration after, due to shrinking, creeping, thermal strain, the reason, meeting such as stress caused by subgrade settlement and traffic loading It was found that the retractor device destructible between end of the bridge and plate of leading the way, produces vehicle bump at bridge ends；Meanwhile, plate of leading the way connects with CRCP grapplings Easily there is the damage such as concrete partial fracture, frangible in the place of connecing, not only influences integrally-built durability, and increase total life Life cycle later maintenance expense；For the above harm, engineers carry out strengthening the common nothing of construction to the three junction Seam treatment of road surfaces（Concreting, and arrangement of reinforcement directly are used, relative dimensions are by rule of thumb）, although preferably work can be being played in short term With, but only limitation experience stills need to put into substantial amounts of manpower, financial resources to its later maintenance.

Utility model content

In view of the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of optimization CRCP and bridge The seamless pavement structure of panel connection, not only reasonable in design, and also it is efficiently convenient.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is：One kind optimization CRCP is connected with floorings Seamless pavement structure, including connection CRCP and floorings transition pavement, the CRCP, transition pavement and floorings are wrapped Containing order is set from top to down asphalt concrete layer and reinforced concrete floor, it is provided with by transverse direction in the reinforced concrete floor The bar-mat reinforcement that reinforcing bar interlocks with longitudinal reinforcement transverse and longitudinal, the bar-mat reinforcement of the CRCP, the bar-mat reinforcement of transition pavement and bridge floor The bar-mat reinforcement of plate is coupled to each other together, the reinforced concrete floor of the CRCP, the reinforced concrete floor of transition pavement and bridge The reinforced concrete floor of panel is integrated to pour and forms, the asphalt concrete layer of the CRCP, the bituminous concrete of transition pavement The asphalt concrete layer of layer and floorings is integrated to pave and forms.

Preferably, the CRCP is provided with equidistant pre- tooled joint in direction of traffic.

Preferably, the longitudinal reinforcement is arranged at the thickness of surface 1/2 ~ 1/3 of reinforced concrete floor.

Preferably, the ratio of reinforcement of the longitudinal reinforcement in the bar-mat reinforcement is 0.6% ~ 0.8%, and the consumption of the transverse steel is The 1/5 ~ 1/8 of the consumption of longitudinal reinforcement.

Preferably, the transverse steel is 12mm ~ 20mm with the diameter of longitudinal reinforcement.

Preferably, thickness of the transition pavement between CRCP and floorings is second-degree parabola change.

Compared with prior art, the utility model has the advantages that：

（1）The utility model eliminates floorings and the retractor device between plate of leading the way, at the same eliminate lead the way plate end with The installation of road and bridge seam and grappling between CRCP, not only increases its durability, the comfortableness of driving, it is to avoid jump car etc. bad Scene, and the later maintenance cost of coupling part structure is reduced during safe operation, increase the life on whole seamless road surface The life cycle；

（2）Thickness of the transition pavement described in the utility model between CRCP and floorings changes for second-degree parabola, is The transition of coupling part rigidity is provided to be supported；

（3）Seamless full-surfaced width degree described in the utility model sets the elongated reinforcing bar of individual layer by the longitudinal reinforcement and bridge floor of CRCP The vertical muscle of plate is directly connected to, and due to the effect of contraction of continuous reinforcement, the crack on seamless road surface can continue to keep being in close contact, and split Seam width very little, it is ensured that the transmission of load, prevents rainwater from invading corrosion reinforcing bar, the same just as seamless road surface, keeps road The overall continuity in face, this connected mode has effectively canceled out the secondary stress of structure, will not be broken because bridge floor shrinks problem It is bad；

（4）The construction method that the utility model is proposed, construction procedure is simple, reduces maintenance, cost-effective, excellent traveling Quality, less noise simplifies the characteristics of constructing, with certain realistic meaning.

The utility model is described in more detail with reference to the accompanying drawings and detailed description.

Brief description of the drawings

Fig. 1 is the organigram of the utility model embodiment.

Fig. 2 is the organigram of the utility model embodiment bar-mat reinforcement.

In figure：1-CRCP, 2- transition pavement, 3- floorings, 4- asphalt concrete layers, 5- reinforced concrete floors, 6- transverse directions Reinforcing bar, 7- longitudinal reinforcements, 8- abutments, the pre- tooled joints of 9-, 10- bridge piers, 11- bearings, 12- connecting plates, I-CRCP sections, II-mistake Cross section, III-bridge floor section.

Specific embodiment

It is that features described above of the present utility model and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, It is described in detail below.

As shown in Figure 1 and 2, the seamless pavement structure that a kind of optimization CRCP is connected with floorings（CRCP is continuous reinforcement concrete road Face）, including connection CRCP1 and floorings 3 transition pavement 2, the CRCP1, transition pavement 2 and floorings 3 include from Asphalt concrete layer 4 and reinforced concrete floor 5 that upper and lower order is set, are provided with by transverse direction in the reinforced concrete floor 5 The bar-mat reinforcement that reinforcing bar 6 and the transverse and longitudinal of longitudinal reinforcement 7 are interlocked, the bar-mat reinforcement of the CRCP1, the bar-mat reinforcement of transition pavement 2 and The bar-mat reinforcement of floorings 3 is coupled to each other together, the reinforced concrete floor 5 of the CRCP1, the armored concrete of transition pavement 2 The reinforced concrete floor 5 of layer 5 and floorings 3 is integrated to pour and forms, the asphalt concrete layer 4, transition pavement of the CRCP1 2 asphalt concrete layer 4 and the asphalt concrete layer 4 of floorings 3 are integrated to pave and form；The utility model eliminates end of the bridge Transverse joint between attachment strap and CRCP1, and it is directly connected to floorings 3, it is not necessary to led the way road surface in each behind of abutment 8 Grappling, so as to reduce pavement preservation cost and reduce the difficulty in critical process.

In the utility model embodiment, the CRCP1 is provided with equidistant pre- tooled joint 9 in direction of traffic.

In the utility model embodiment, the longitudinal reinforcement 7 is arranged in away from the surface 1/2 ~ 1/3 of reinforced concrete floor 5 At thickness, the deformation on road surface can be effectively constrained, and make road surface bottom load stress minimum.

In the utility model embodiment, the ratio of reinforcement of the longitudinal reinforcement 7 in the bar-mat reinforcement is 0.6% ~ 0.8%, described The consumption of transverse steel 6 is the 1/5 ~ 1/8 of the consumption of longitudinal reinforcement 7.

In the utility model embodiment, the transverse steel 6 is 12mm ~ 20mm with the diameter of longitudinal reinforcement 7, described Transverse steel 6 uses spiral, the cohesive force between increase and concrete with longitudinal reinforcement 7.

In the utility model embodiment, thickness of the transition pavement 2 between CRCP1 and floorings 3 is secondary throwing Thing line changes.

The Specific construction process of the utility model embodiment is comprised the steps of：

（1）Linkage section and the construction of certain distance are reserved respectively at the both ends of abutment 8 of the end of CRCP1 and floorings 3 Place, to the end of abutment 8 to the fill compaction between the end of CRCP1, and meets the requirement of related specifications；

（2）The molding between CRCP1, floorings 3 and CRCP1 and floorings 3, in CRCP1, transition pavement 2 and bridge Longitudinal reinforcement 7 is matched somebody with somebody in the region of panel 3, by the longitudinal direction of the longitudinal reinforcement 7 of CRCP1, the longitudinal reinforcement 7 of transition pavement 2 and floorings 3 Reinforcing bar 7 is welded, and full duration is laid, and laterally also arranging transverse steel 6 with longitudinally perpendicular, transverse steel 6 with it is vertical Bar-mat reinforcement is formed to reinforcing bar 7；

（3）Treat step（2）After the completion of, to step（2）In molding section carry out pouring and compacting of vibrating for concrete, formation The reinforced concrete floor 5 of connection CRCP1, transition pavement 2 and floorings 3, carries out appropriate maintenance to it afterwards；

（4）Treat step（3）In after the concrete that pours reaches predetermined intensity, polished in concrete surface layer, dig Go out rough surface, carry out paving for asphalt concrete layer 4, the grinding compacting when paving, compactness meets phase in specification Close and require, and carry out the maintenance of appropriate time；

（5）Treat step（4）After the completion of, carry out the dismounting of template and check work, while cutting formation is carried out to CRCP1 passing through Wear horizontal pre- tooled joint 9.

The utility model is not limited to above-mentioned preferred forms, and anyone can obtain under enlightenment of the present utility model Go out seamless pavement structure and construction method that other various forms of optimization CRCP are connected with floorings.It is all according to the utility model Shen Please the impartial change done of the scope of the claims and modification, should all belong to covering scope of the present utility model.

Claims

1. the seamless pavement structure that a kind of optimization CRCP is connected with floorings, it is characterised in that：Including connection CRCP and floorings Transition pavement, the CRCP, transition pavement and floorings comprising from top to down order set asphalt concrete layer with Reinforced concrete floor, is provided with the reinforcing bar interlocked by transverse steel and longitudinal reinforcement transverse and longitudinal in the reinforced concrete floor Net, the bar-mat reinforcement of the bar-mat reinforcement of the CRCP, the bar-mat reinforcement of transition pavement and floorings is coupled to each other together, the CRCP Reinforced concrete floor, the reinforced concrete floor of transition pavement and the reinforced concrete floor of floorings be integrated to pour and form, The asphalt concrete layer of the asphalt concrete layer of the CRCP, the asphalt concrete layer of transition pavement and floorings is integrated stand Paving forms.

2. the seamless pavement structure that optimization CRCP according to claim 1 is connected with floorings, it is characterised in that：It is described CRCP is provided with equidistant pre- tooled joint in direction of traffic.

3. the seamless pavement structure that optimization CRCP according to claim 1 is connected with floorings, it is characterised in that：It is described vertical To steel bar arrangement at the thickness of surface 1/2 ~ 1/3 of reinforced concrete floor.

4. the seamless pavement structure that optimization CRCP according to claim 1 is connected with floorings, it is characterised in that：The steel The ratio of reinforcement of the longitudinal reinforcement in muscle net is 0.6% ~ 0.8%, the consumption of the transverse steel for the consumption of longitudinal reinforcement 1/5 ~ 1/8。

5. the seamless pavement structure that optimization CRCP according to claim 1 is connected with floorings, it is characterised in that：The horizontal stroke 12mm ~ 20mm is to the diameter of reinforcing bar and longitudinal reinforcement.

6. the seamless pavement structure that optimization CRCP according to claim 1 is connected with floorings, it is characterised in that：The mistake Thickness of the road surface between CRCP and floorings is crossed for second-degree parabola changes.