Shenyang Taoxian International Airport Expansion Project?

What is the specific content of the extension project of Shenyang Taoxian International Airport? Zhong Da Consulting will answer your questions below.

1, project overview

Shenyang Taoxian International Airport Extension Project Terminal Viaduct (main bridge) project, the total length of the main bridge is162m, with a total of * * * two spans, each with three spans, and each span is 27m. The absolute elevation of the bridge deck design line is 65.037 meters. Bored pile foundation.

Pier diameter 1.5m, top diameter 2.0m, height 6.5m * * * 14 main bridge.

climatological data

The highest temperature is 36.7℃, the lowest temperature is -30.5℃, the total rainfall is 734 mm, the maximum daily rainfall is 1 18.9mm, the rainy season is from June to September, and the dominant wind direction in summer is southeast wind.

Compilation basis:

1. Construction organization design of the main bridge of the viaduct of Shenyang Taoxian International Airport

2. Drawings and design descriptions of the viaduct -0 1 ~ 03, 22, 24- 1, 25- 1, 26- 1 designed by China Civil Aviation Airport Planning and Design Institute.

3. Technical specification for construction of highway bridges and culverts JTJ-04 1-89.

4. Highway engineering quality inspection and evaluation standard JTJ-98.

5. Geotechnical investigation report of viaduct with certificate number 060 1076.

6, the highway engineering construction quota and other information.

7. Actual situation.

2, construction preparation

2. 1 material preparation

Reinforcement Ф 2815.00t

Ф 221.75t

Ф16 2.00 tons

ф 12 0.80φ8 1.36t

506 covered electrode 500Kg

Tie wire, 22nd, 50 kg.

Cement ordinary silicon 425 65t

Coarse sand in the sand is 85 cubic meters.

Gravel 0.5-3.15cm140m3.

WBF20-30 650 kg class

Steel bars must be accepted in batches according to different steel grades, brands, specifications and manufacturers, and stacked separately. Steel bars shall not be mixed, and signs shall be set for identification. Reinforced pile should be padded 20; 30cm, cover it.

Raw materials used in this project, such as sand, gravel, ordinary silicon 425 # cement, Ф 28, Ф 22, Ф16, Ф12, Ф 8, etc. , in accordance with the provisions, inspection, and entrust the mixture ratio of concrete used.

Mix proportion of concrete; WBF 20-30 admixture (Shenyang Yilida Additive Factory) is selected for C30 concrete. The slump of concrete is 7~9cm, and the initial setting time at 28℃ is longer than 150 minutes.

The flash butt welding of Ф 28 and the trial welding of Ф16 arc welding were tested.

2.2 Equipment and tools

A set of mixing station equipment

Two oil tankers

Five welding machines

Two bending machines

Two cutting machines

A crane

2.3 labor force

2 welders

30 steel workers

25 concrete workers

Woodworking 15 people

Electrician 1 person

Mechanic 1 person

Inspect the equipment, materials, mixture ratio and labor force entering the site, fill in relevant information and report to the supervisor for approval.

3, the main process construction measures

3. 1 positioning

According to the established control points, after review, the survey engineer will carry out bridge construction; 0 1 ~ 03, 22, 24- 1, 25- 1, 26- 1, calculate the center coordinates of the pier, measure and locate the pier, and pop up vertical and horizontal center lines and pier formwork control lines on the surface of the pile cap. According to the requirements of the drawings, the inner edge control line of the outer edge line of the template is released on the top surface of the pile cap. Determine the pier bottom position according to the leveling control points. The absolute elevation of the pier bottom is 57.2m, and the elevation of the pier top is shown in the Bridge Construction -03 Figure. The triangulation accuracy of the bridge position is seventh grade, and the elevation deviation of the temporary leveling point is less than Δ h = 20 √ L (mm). After the pier position is determined and rechecked, fill in the survey and setting-out inspection form and submit it to the supervisor for acceptance.

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