CN202718022U

CN202718022U - Fabricated type prestressed concrete pavement

Info

Publication number: CN202718022U
Application number: CN 201220280630
Authority: CN
Inventors: 胡力群; 陈法安; 宋灿灿; 马伟思; 吴朝阳
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2012-06-14
Filing date: 2012-06-14
Publication date: 2013-02-06
Anticipated expiration: 2022-06-14

Abstract

The utility model discloses a fabricated type prestressed concrete pavement. The fabricated type prestressed concrete pavement comprises a prestressed tendon mesh paved on a roadbed, and at least two prefabricated concrete pavement slabs are paved on the prestressed tendon mesh. The pavement structure is used for emergency repair of after-calamity roads, or used for constructing and maintaining roads conventionally, and has multiple advantages of being convenient to install, fast in construction speed, low in construction cost, low-carbon and environment-friendly and the like, and improves the rescue timeliness.

Description

A kind of prefabricated PC rigid pavement

Technical field

The utility model relates to a kind of prefabricated PC cement concrete pavement, and this road structure mainly is applicable to the road surface that rapid rush-repair is destroyed by geological disasters such as earthquakes.

Background technology

Road damage is the maximum bottleneck of earthquake relief work after the calamity, and the emergency first-aid repair of road becomes the key link of earthquake relief work after the calamity.At present, China's road emergency damage repair technology needs professional and special machine equipment, and operating efficiency is low, cost is higher, has greatly limited repairing speed, is difficult to satisfy the high-timeliness demand of earthquake relief work.

Summary of the invention

Defective or deficiency for prior art, the purpose of this utility model be to provide a kind of reasonable in design, simple in structure and stable, roadability is good, speed of application is fast, construction costs is low, maintenance is convenient, can guarantee the prefabricated PC rigid pavement that robbing fast of disaster area road is logical, provide the logistics traffic support for earthquake relief work.

For realizing above-mentioned technical assignment, the utility model is taked following technical solution:

A kind of prefabricated PC rigid pavement is characterized in that, comprises the presstressed reinforcing steel net that is layed on the roadbed, and this presstressed reinforcing steel is equipped with at least two concrete pavement slabs on the net.

Other technologies of the present utility model are characterized as:

The end of described presstressed reinforcing steel net is equipped with the anchoring lock nut that fixes concrete pavement slab.

Be provided with the rubber fillet between two adjacent concrete pavement slabs.

Be equipped with groove on the sidewall around the described concrete pavement slab, described rubber fillet is arranged in groove.

Described concrete pavement slab bottom surface offers the duct of placing the presstressed reinforcing steel net.

Compared with prior art, of the present utility model have a following technical characterstic:

(1) the prefabricated of road slab can batch production production, and speed of production is fast;

(2) road structure is simple, installation, maintenance, easy to maintenance;

(3) pavement construction speed is fast, the cycle is short, can be while constructing traffick, instant effect;

(4) the required plant equipment of construction is few, and material usage is economized, and energy consumption is low, greatly reduces construction costs;

(5) prestressed existence has increased the globality of plate, and roadability is good.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1.

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.

The specific embodiment

With reference to figure 1 and Fig. 2, according to the technical solution of the utility model, the prefabricated PC Cement Concrete Pavement Slab of this embodiment, comprise the presstressed reinforcing steel net 1 that is layed on the road basis (roadbed), be equipped with 30 concrete pavement slabs 2 on this presstressed reinforcing steel net 1, for making effective communication load between the contiguous prefabricated concrete flag 2, at the bottom of preventing that simultaneously rainwater is by seam infiltration road surface, be provided with rubber fillet 5 between two adjacent concrete pavement slabs 2, and be equipped with groove on the sidewall around the concrete pavement slab 2, described rubber fillet 5 is arranged in groove; For guaranteeing that presstressed reinforcing steel net 1 contacts with the firm of concrete pavement slab 2, concrete pavement slab 2 bottom surfaces offer the duct 4 of placing the presstressed reinforcing steel net simultaneously; In use loosening for preventing concrete pavement slab 2 at last, the end of presstressed reinforcing steel net 1 is equipped with the anchoring lock nut 3 that fixes concrete pavement slab.

Concrete pavement slab 2 wherein adopts the ordinary concrete cast prefabricated, and its material mixture ratio forms identical with Common Concrete Pavement; In order to control concrete pavement slab 2 weight, be convenient to the transportation and construction hoisting, concrete pavement slab 2 follow car direction length between 3～5 meters; For consistent with curb-to-curb width, concrete pavement slab 2 is identical with the ordinary concrete plate perpendicular to the length of direction of traffic, namely 3.5～4.0 meters; Concrete pavement slab 2 is identical with Common Concrete Pavement board thickness design method, and it is main satisfying traffic load.

For the replacing of convenient damaged plate, and be easy to build moulding, concrete pavement slab 2 sections are rectangle, and bottom surface opened; The width of duct 4 sections that the bottom surface is offered is 1.5～2cm, and duct 4 highly is about 4cm.

Duct 4 shapes of offering on concrete pavement slab 2 bottom surfaces are corresponding with the shape of presstressed reinforcing steel net 1 that is positioned at its below, are layed in the duct 4 offered on concrete pavement slab 2 bottom surfaces on adjacent (overlapping setting up) two tension prestress muscle nets 1 more than the duct 4 of offering on concrete pavement slab 2 bottom surfaces that are layed on individual presstressed reinforcing steel net 1.

During the construction on road surface, for the local pressure that the prestressing force that applies and road slab are born unlikely excessive, and avoid the long larger loss of prestress that causes of presstressed reinforcing steel, usually vertical 10～15 concrete pavement slabs 2 are done as a whole (one), be fixed together with presstressed reinforcing steel net 1.The Specific construction process is as follows:

At first, lay presstressed reinforcing steel net 1, lay the longitudinal prestressing muscle according to the presstressed reinforcing steel quantity that calculates, lay subsequently the transverse prestress muscle, the transverse prestress muscle is in order to satisfy the safety on road surface, to prevent that adjacent two road surface straight skiddings are excessive, and play the fixedly effect of longitudinal prestressing muscle, therefore, generally only establish along vertical 3～5 uniform longitudinal prestressing muscle of road slab;

Subsequently, at the online hoisting prefabricated concrete flag 2 of the presstressed reinforcing steel that lays, in the road surface pavement plate, in groove, place rubber fillet 5, lifted concrete pavement slab 2 after, around presstressed reinforcing steel net 1, anchoring lock nut 3 is installed, anchoring is carried out on whole road surface; At last, after the construction in a highway section is complete, proceed the construction in next connection highway section, the concrete pavement slab 2 that is layed on the adjacent two tension prestress muscle nets 1 can be installed anchoring lock nut 3 all around.

Claims

1. a prefabricated PC rigid pavement is characterized in that, comprises the presstressed reinforcing steel net (1) that is layed on the roadbed, is equipped with at least two concrete pavement slabs (2) on this presstressed reinforcing steel net (1).

2. prefabricated PC as claimed in claim 1 rigid pavement is characterized in that, the end of described presstressed reinforcing steel net (1) is equipped with the anchoring lock nut (3) that fixes concrete pavement slab (2).

3. prefabricated PC as claimed in claim 1 rigid pavement is characterized in that, is provided with rubber fillet (5) between adjacent two concrete pavement slabs (2).

4. prefabricated PC as claimed in claim 3 rigid pavement is characterized in that, be equipped with groove on described concrete pavement slab (2) sidewall all around, described rubber fillet (5) is arranged in groove.

5. prefabricated PC as claimed in claim 1 rigid pavement is characterized in that, described concrete pavement slab (2) bottom surface offers the duct (4) of placing presstressed reinforcing steel net (1).