CN209854576U - A trolley for the construction of slab culverts or passages - Google Patents

Abstract

The utility model discloses a trolley for construction of an apron culvert or a channel, which belongs to the technical field of construction of the apron culvert or the channel, and comprises a left portal and a right portal with consistent structures, wherein the left portal and the right portal respectively comprise a plurality of steel pipe upright posts, a pipe top longitudinal beam, a pipe bottom longitudinal beam, a first inclined strut and an upright post steel cushion block; a second inclined support is arranged between the left portal frame and the right portal frame and is arranged on the steel pipe upright posts positioned on the outer sides of the left portal frame and the right portal frame; the pipe top longitudinal beam is characterized in that a combined steel template is arranged at the upper end of the pipe top longitudinal beam, transverse distribution beams transversely arranged are arranged between the combined steel template and the pipe top longitudinal beam and are longitudinally and uniformly distributed along the pipe top longitudinal beam, and distribution beam limiters are arranged on two sides of the transverse distribution beams, which are in contact with the pipe top longitudinal beam.

Description

A trolley for the construction of slab culverts or passages

technical field

The utility model relates to the technical field of cover culvert or channel construction, in particular to a trolley used for cover culvert or channel construction.

Background technique

In the construction of conventional culvert or channel cover slabs in highway engineering, in order to support the formwork, the full-hole bracket method is generally used for cover slab construction. When the concrete is poured and the formwork is removed, all the brackets need to be removed before transferring to the next construction section. Therefore The one-time investment of formwork and support during construction is large, the operation utilization rate is low, the labor efficiency is low, and the operability is cumbersome.

The Chinese Utility Model Patent No. 201420255956 discloses a movable support for supporting culvert building formwork, including a support body. Among them, the bottom of the bracket body is provided with an adjustable bottom support and a load-bearing rolling device, and the load-bearing rolling device is installed on the bottom support; the top of the support body is provided with a height-adjustable jack; the top of the jack is provided with a detachable support body .

The above-mentioned utility model patent solves the problem of repeated disassembly and assembly of the support when pouring the top plate of the cover plate by installing a load-bearing rolling device at the bottom of the support body, but its structure is complex and additional formwork is required on the top during the construction process, and it is difficult to carry the formwork up and down. Multi-person participation is required, combined with the actual situation, a mobile and height-adjustable trolley is developed, and a template is preset on the top of the trolley. In construction applications, it can greatly reduce construction investment, save construction time and improve personnel efficiency. .

Utility model content

The purpose of the invention of the utility model is to provide a trolley for the construction of cover culverts or passages in view of the above problems, which can greatly reduce the construction investment, save the construction period and improve the work efficiency of personnel in the construction application.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a trolley used for the construction of cover culverts or passages, including a left door frame and a right door frame with the same structure, the left door frame and the right door frame The gantry includes several steel pipe columns, pipe top longitudinal beams, pipe bottom longitudinal beams, first diagonal braces and column steel spacers; any two steel pipe column lower ends on the same side are longitudinally provided with the pipe bottom longitudinal beams. beam; the top of the steel pipe column is provided with a notch suitable for the width of the pipe top longitudinal beam, and the pipe top longitudinal beam is erected longitudinally in the notch; the middle parts of any two steel pipe columns on the same side are The first diagonal brace is provided; the column steel pad is arranged at the bottom of the steel pipe column; a second diagonal brace is provided between the left door frame and the right door frame, and the second diagonal brace is set On the steel pipe columns located outside the left door frame and the right door frame; the upper end of the pipe top longitudinal beam is provided with a combined steel formwork, and a horizontal arrangement is arranged between the combined steel formwork and the pipe top longitudinal beam The horizontal distribution beam is uniformly distributed longitudinally along the pipe top longitudinal beam, and the two sides of the horizontal distribution beam in contact with the pipe top longitudinal beam are provided with distribution beam stoppers.

To further illustrate, the steel pipe column has a diameter of 320mm and a thickness of 10mm, and the specification of the column steel pad is 400*400*10mm.

To further illustrate, both the pipe top longitudinal beam and the pipe bottom longitudinal beam are I25 I-beams.

To further illustrate, both the first diagonal brace and the second diagonal brace are [10 channel steel.

To further illustrate, the horizontal distribution beam is made of I10 I-beam with a spacing of 25cm.

To further illustrate, the structure of the distribution beam limiter is [10 channel steel, and the distribution beam limiter is welded on the lower end surface of the horizontal distribution beam to limit the horizontal distribution beam.

Due to the adoption of the above technical solution, the utility model has the following beneficial effects: the trolley used for the construction of cover culverts or channels made by the technical solution of the utility model has simple structure, convenient disassembly and assembly, flexible operation, safety and reliability, and can be used for multiple It is suitable for the construction of conventional culverts or channel cover plates; in the construction of any conventional culvert or channel cover plates, it can move, lift, and stay freely, improving construction efficiency and reducing construction costs.

The steel pipe column is designed to have a diameter of 320mm and a thickness of 10mm; the specification of the column steel pad is designed to be 400*400*10mm; both the pipe top longitudinal beam and the pipe bottom longitudinal beam are made of I25 I-beam; the first diagonal brace and the The second diagonal bracing adopts [10 channel steel; the horizontal distribution beam adopts I10 I-beam with a spacing of 25cm; the distribution beam limiter adopts [10 channel steel; the above design is obtained in practice after many different specifications and sizes. The optimal combination, that is, to maximize the saving of steel while satisfying the structural safety, will control the production cost of the trolley for the construction of the cover culvert or channel to the minimum.

Description of drawings

Fig. 1 is the perspective view of the trolley used in the construction of cover culverts or passages in the embodiment of the present invention;

Fig. 2 is the gantry diagram of Fig. 1 of the utility model;

Fig. 3 is an enlarged view of A in Fig. 1 of the present utility model.

In the accompanying drawings, 1-steel pipe column, 2-pipe top longitudinal beam, 3-pipe bottom longitudinal beam, 4-first diagonal brace, 5-column steel pad, 6-notch, 7-second diagonal brace, 8 -Combined steel formwork, 9-horizontal distribution beam, 10-distribution beam limiter.

Detailed ways

The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

As shown in Figure 1-3, a trolley used for the construction of cover culverts or passages includes a left door frame and a right door frame with the same structure. Both the left door frame and the right door frame include three steel pipe columns 1. Pipe top Longitudinal beam 2, pipe bottom longitudinal beam 3, first diagonal brace 4 and column steel pad 5; steel pipe column 1 has a diameter of 320mm and a thickness of 10mm, and the specification of the column steel pad is 400*400*10mm. 2 and the pipe bottom longitudinal beam 3 are both I25 I-shaped steel, and there is a pipe bottom longitudinal beam 2 between the lower ends of any two steel pipe columns 1 on the same side; The notch 6, the vertical beam 2 on the top of the pipe is erected in the notch 6; the first diagonal brace 4 is arranged between the middle parts of any two steel pipe columns 1 on the same side; the column steel spacer 5 is arranged at the bottom of the steel pipe column 1; A second diagonal brace 7 is arranged between the mast and the right mast, and the second diagonal brace 7 is arranged on the steel pipe column 1 located outside the left mast and the right mast. The first diagonal brace 4 and the second diagonal brace 7 are both It is [10 channel steel; the upper end of the pipe top longitudinal beam 2 is provided with a combined steel formwork 8, and a horizontal distribution beam 9 is arranged between the combined steel formwork 8 and the pipe top longitudinal beam 2, and the horizontal distribution beam 9 is uniformly distributed along the vertical direction of the pipe top longitudinal beam 2. Distribution, the horizontal distribution beam adopts I10 I-beam, the spacing is 25cm, the two sides of the horizontal distribution beam 9 and the longitudinal beam 2 on the pipe top are provided with a distribution beam limiter 10, and the structure of the distribution beam limiter 10 is [10 grooves Steel, the distribution beam limiter 10 is welded on the lower end surface of the horizontal distribution beam 9, and the horizontal distribution beam 9 is laterally limited.

The above trolleys used for the construction of cover culverts or passages are actually applied to the third branch of Rongshui-Hechi Expressway. The starting point is located in Dawu Village, Siba Town, Luocheng County, and the end point is located near Fu Village, Tianhe Town, Luocheng County. : K55+000～K69+700, with a total length of 14.7Km, mainly composed of subgrades, bridges, and culvert passages, including 17 bridges, 2073.76m/69 culverts, and 980.32m/27 passages.

The trolley as the first project stake number K56+711 is put into use in the reinforced concrete concealed culvert passage, the culvert length is 32.0m, the intersection angle is 90°, the net width is 6m, the net height is 4.5m, the foundation thickness is 1.2m, and the foundation width is 2.25m , the thickness of the table body is 1.15m, and the filling height is 2.26m.

In order to simplify the calculation, the culvert length is calculated according to the width of the subgrade of 26m. The following are the economic comparisons between the construction of the trolley and the construction of the full hall support.

The economical situation of using trolley construction is as follows:

(1) Material fee

Consider it as 1 trolley. Because the trolley is customized by the template factory, the material is mainly steel, and the weight of a trolley (6m) is 8.6 tons, 4000 yuan/ton × 8.6 tons = 34400 yuan.

(2) Labor costs

When using trolley construction, each culvert is installed in 6 times, each installation, adjustment and dismantling requires 0.4 man-days/person/time×6 times×3 people=9 manpower, 9 man-days×150 yuan/man-day=1350 Yuan.

(3) Machinery fee

0.5 man-days for materials reversing and transfer trolleys, 0.5 man-days x 1200 yuan/man-day = 600 yuan.

The economic situation of adopting the full hall bracket construction is as follows:

(1) Material fee

1), Bowl buckle bracket

During the construction of the whole hall support, it shall be considered according to the first step of the support erection construction. The support poles shall be arranged according to 0.9m×1.2m. Set up the sweeping pole 30cm away from the foundation, the distance between the horizontal poles is 1m, and the scissors are arranged in a row of 5m.

① steel pipe

Pole: 3m×4 rows×24/row=288m

Cross bar: 26m×4 layers×4 bars/layer+3.6m×4 layers×24 bars/layer=1830m

Scissors support: 6m/root x 40=240m

The steel pipe rental fee is 0.018 yuan/m/day, and the rental fee is: 0.018 yuan/m/day×(288+1830+240)m=42.444 yuan/day.

② jacking

Jacking quantity: 4×24=96 pieces. The rental fee is: 96×0.012 yuan/piece/day=1.152 yuan/day.

③ Fasteners

The number of fasteners is: 4×24×4+10×20=584 pieces. The rental fee is: 96×0.008 yuan/piece/day=4.672 yuan/day.

The above total rental fee is: 48.3 yuan / day.

2), template

The formwork adopts steel formwork, the area is 28×3.88=108.64m2, the weight per square meter is 88Kg, and the formwork cost is 108.64m2×88Kg/m2×4 yuan/Kg=38241 yuan.

(2) Labor costs

During the construction of the support for the whole hall, 4 man-days/person/time × 1 time × 6 people = 24 manpower, 24 man-days × 150 yuan/ Working days = 3600 yuan.

(3) Machinery fee

During the construction of the full hall bracket, the formwork installation requires a crane for 1 working day, 1 working day × 1200 yuan / working day = 1200 yuan.

Through the above two construction methods, an economic comparative analysis can be drawn

Through the above two construction methods, an economic comparative analysis can be drawn

During the construction of each culvert or channel trolley, the construction time of the trolley and the full hall support is 15 days, and the construction time is basically the same. During the construction, 6 sets of trolleys and 6 sets of full hall supports are installed to construct 33 culverts at the same time.

1. Compared with material cost saving

Install 6 sets of trolleys and 6 sets of full hall supports during construction, saving money: (38241+48.3×15)×6-34400×6=27393 yuan.

2. Compared with saving labor costs

Each culvert or channel saves 1,950 yuan, totaling 64,350 yuan.

3. Savings in comparison of mechanical costs

Each culvert or channel saves 2,400 yuan, and a total of 79,200 yuan is saved.

To sum up, using trolleys to construct culverts or cover slabs can save a total of 170,943 yuan, and the benefits are considerable. Due to the difference in angle and light and dark culverts in actual construction, the culvert length will increase and the benefits will also increase.

The above description is a detailed description of the preferred feasible embodiments of the present utility model, but the embodiments are not used to limit the scope of the patent application of the present utility model. All equivalent changes or modifications completed under the technical spirit suggested by the utility model, All should belong to the patent scope covered by the utility model.

Claims (6)

1. A trolley for cover culvert or channel construction, characterized in that: it comprises a left door frame and a right door frame with the same structure, and the left door frame and the right door frame all include several steel pipe columns, The pipe top longitudinal beam, the pipe bottom longitudinal beam, the first diagonal brace and the column steel pad; the pipe bottom longitudinal beam is longitudinally arranged between the lower ends of any two steel pipe columns on the same side; the top of the steel pipe column is provided with A notch adapted to the width of the pipe top longitudinal beam, the pipe top longitudinal beam is vertically erected in the notch; the first diagonal brace is arranged between the middle parts of any two steel pipe columns on the same side; The column steel pad is arranged at the bottom of the steel pipe column; a second diagonal brace is arranged between the left door frame and the right door frame, and the second diagonal brace is arranged between the left door frame and the right door frame. On the steel pipe column on the outside of the right gantry; the upper end of the pipe roof longitudinal beam is provided with a combined steel formwork, and a horizontal distribution beam is arranged between the combined steel formwork and the pipe top longitudinal beam. Beams are evenly distributed longitudinally along the pipe top longitudinal beam, and distribution beam stoppers are provided on both sides of the horizontal distribution beam in contact with the pipe top longitudinal beam. 2. A trolley for the construction of cover culverts or passages according to claim 1, characterized in that: the diameter of the steel pipe column is 320 mm, the thickness is 10 mm, and the specification of the steel pad for the column is 400* 400*10mm. 3. A trolley for construction of cover culverts or passages according to claim 1, characterized in that: the longitudinal beam at the top of the pipe and the longitudinal beam at the bottom of the pipe are both I25 I-shaped steel. 4. A trolley for construction of cover culverts or passages according to claim 1, characterized in that: the first diagonal brace and the second diagonal brace are both [10 channel steel. 5. A trolley for construction of cover culverts or passages according to claim 1, characterized in that: the horizontal distribution beam is made of I10 I-beam with a distance of 25cm. 6. A kind of trolley for cover culvert or channel construction according to claim 1, characterized in that: the structure of the distribution beam limiter is [10 channel steel, and the distribution beam limiter is welded On the lower end surface of the horizontal distribution beam, the horizontal distribution beam is limited laterally.