邱志武,外文翻译Word 文档.doc

科学技术学院

专业外文资料翻译

题 目：Steel structure design of high-rise building has become the main selection
钢结构成为高层建筑的主要选择
学 科 部： 理工学科部
专 业： 土木工程
班 级： 土木081
学 号： 7011508018
学生姓名： 邱志武
指导教师： 李建海

Steel structure design of high-rise building has become the main selection
Steel structure used in high-rise building dozens of years of history. First the steel structures build high-rise building is the United States, after post-war economic recovery, high-rise steel structure engineering construction rise again, along with the steelmaking technology and molding manufacture process of development, the application of the steel structure project to bring new energy, engineering construction increasingly, the corresponding and promoted the steel structure design and construction technology advances product perfect, especially since 1960, high-rise steel structure engineering rapid development, the steel structure has become a high building design selection of the main object.
With China's national economic development and population urbanization housing construction in our country for unprecedented development, people's living conditions gradually improved and the requirements of the quality of the live more and more is also high. China has become the first country produces steel structure housing suitable for mass production factory, industrialization and commercialization degree is high, can design, production, construction, installation integration, improve the level of housing industrialization. Due to these advantages, steel structures in the housing market will have good development prospect.
Through the flowers district 1 # floor high-rise residential steel structure system and application of the better improve steel structure housing industry system in the application of technology, promote domestic steel structures in the real estate industry, the steel structure for the development of the system to make the contribution
2, engineering survey
Flowers of # 1 in jinan area located high and new technology industrial development construction corporation in the district of the construction of the flowers, building area of 33000 square meters, underground, the ground and layer (including underground garage, for every 1 to 3 layer for public, 4 layer above for residential building). Bearing framework for box section column and H beam and column of the production workshop Q345B masteel steel processing production. Inside, outside wall using in nanjing ALC lightweight autoclaved aerated concrete board), exterior wall directly in the BanShua ALC coatings. Part of the building outside the window frameless window; Housing outside the window the 60 PVC window of model steel window, hollow glass. Floor for cast-in-situ concrete construction site, roof use PVC felt waterproofing fat foam insulation roofing gather b. Residence in water and electricity are walk wiring, and beam crossing walk beam webs pre-setting hole. Water, electric household metering, broadband door. In heating the import of American original JinMaKe electric heaters. Indoor fine decoration, the space is big, the effect is good, fully embodies the advantages of the steel structure of the structure.
3, main construction method
3.1 steel structure processing production box column USES the steel plate, in steel components processing workshops processing, steel structure component the removal of rust, welding completed.
3.1.1 box production technology column
1) steel plate joining together
Since each DuanZhu in 12 meters high, in order to ensure the material plate after the straightness, the first of two steel plate joining together. Steel mouth open slope at both ends.
2) crossed the material
Press the row materials figure crossed, crossed a 3 mm width allowance, 50 mm length direction leave allowance. No middle clapboard crossed headroom.
Along the length direction crossed every 5 m drilling Φ 8 mm holes.
With two sets of semi-automatic cutting machine (or double) along the center and cutting crossed, every 5 meters leave 100 mm not cutting, wait for after cooling cut again.
3) assembly welding
Use h-beam as temporary assembly platform, before the assembly with level will platform make level and will H mat real fixed. In the two webs struck the assembly line, assembly welding liner.
Positioning welding. In the liner inside every 300 mm weld 10-20 mm weld.
Will a webs and partition of group, positioning welding.
Two group to cover. Positioning welding.
Assembly webs, positioning welding.
With three pillars of the size of the box with side by side, and two spot welding. With both sides for the automatic welding machine in orbit.
Welding: with two sets of submerged arc welding the direction welding two welds. Weld ends and 100 mm arc starting board and extinguish arc welding.
After welding layer will case after emancipation, welding the other side two welds. Welding methods are the same as above. After the completion of the rolling again for welding welding process the other side two welds.
The welding, will lead out the arc from mother material 5 board in mm is cut off, and the maintenance of the grinding wheel grinding smooth, must not use hammer shot down; And after the grinding of the cut surface for inspection.
Weld nondestructive testing, the use of ultrasonic flaw detection. Testing for each welding line length of 20%, according to the provisions of the JB11345 not less than Ⅱ level.
3.1.1&3.1.2, beam and connection board processing and compound
1) the material
The steel material cutting steel, steel plate with semi-automatic cutting machine of material, after the material should be clear slag the grinding, Numbers classification is placed;
2) drilling
In the first component with needle and a ruler delimit the center of hole diameter, in around the hole (90 ° position) play four punching, bored after check;
3) high strength bolt the friction surface treatment
Sandblasting processing high strength bolts of friction surface roughness: gush arenaceous pressure about 6 Kg/c ㎡, quartz sand particle size 1.5 ∽ 4 mm, the processed surface display steel gray;
With an electric grinder grinding plate surface, grinding wheel grinding direction and the vertical stress direction, burnish range should be not less than 4 times bolt diameter, grinding should not be in the steel surface grinding out the obvious pits;
3.2 steel structure installation
3.2.1 box column installation: box column in the real construction process according to the material purchasing, processing, transportation, lifting, connection (reinforcement) process completed. All steel structure products, in the brush paint rust before, must will component surface of burr, rust, oil and clean attachments. To St2 manual derusting, mechanical derusting to Sa2. This project four layers below the skirt building pillar for 48 root, the main building pillar for 37 root. Single pillar shortest 4.5 meters, the longest 12.5 meters. Section shape for the box. The biggest single pillar design weight of 3.5 tons, minimum design weight 1.88 tons. Shear wall frame column for 150 * 150 H section. Lifting the order by the center around to expand the principle, to ensure the installation process of framework symmetry and stability. The hoisting installation pillar QTZ-80 cranes, use the tops of the ear plate as temporary design connection lifting lifting point for lifting. Pillar is used to connect the temporary connection plate and temporary bolt connection, to form stable unit after welding and adjustment framework UT detection.
Installation of steel girder 3.2.2 installation points girders, and second beam and outside carry beam installation; Main material for Q345B H steel rolling. In pillar form girder by unit of construction crane bound, according to the engineering design characteristics of the hoisting number 2 ~ 4 root; Second beam and shear wall frame beams because of the space and the actual situation of the contacts, generally USES single lifting.
The high strength bolts of the high strength bolts 3.2.3 installation is the building 1, introduction
Steel structure used in high-rise building dozens of years of history. First the steel structures build high-rise building is the United States, after post-war economic recovery, high-rise steel structure engineering construction rise again, along with the steelmaking technology and molding manufacture process of development, the application of the steel structure project to bring new energy, engineering construction increasingly, the corresponding and promoted the steel structure design and construction technology advances product perfect, especially since 1960, high-rise steel structure engineering rapid development, the steel structure has become a high building design selection of the main object.
With China's national economic development and population urbanization housing construction in our country for unprecedented development, people's living conditions gradually improved and the requirements of the quality of the live more and more is also high. China has become the first country produces steel structure housing suitable for mass production factory, industrialization and commercialization degree is high, can design, production, construction, installation integration, improve the level of housing industrialization. Due to these advantages, steel structures in the housing market will have good development prospect.
Through the flowers district 1 # floor high-rise residential steel structure system and application of the better improve steel structure housing industry system in the application of technology, promote domestic steel structures in the real estate industry, the steel structure for the development of the system to make the contribution.
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3.3 the concrete construction
The project is part of the concrete in the main core tube funnel wall and cast-in-situ concrete floor two parts. The transportation of concrete. Concrete vertical transportation mainly through concrete pump pumping. Floor formwork-supports schemes, according to the structure characteristics of the project, using the H beams flange support under small size h-beam, H steel in the laying of bamboo veneer, steel. Box column site concrete roof up by law, the use of the concrete pump pressure will be pressed into the next up by concrete box column. In the concrete roof up before, in conjunction with the designer roof up the entrance to the wall, the strength of the strict detailed analysis, ensure roof up pressure on the strength of the requirements, within the scope of the lower lateral wall installation at the same time in the column special pressure gauge, at any time observation of the concrete column pressure change. In addition, with concrete roof up gradation to strict requirement, ensure the concrete slump not less than 200 MM.
3.4 outside wall installation
Outside the building in nanjing xu panels 175 MM thickness ALC board. The plank all adopt the factory, transportation to the scene the hoisting, lifting equipment for crane. Exterior wall panels including approximately 9780 pieces, including TU flat of more than 4600, TU art board is 5180 pieces. According to manufacturer provides atlas construction, expansion bolt from the inside wall of the floor in long angles and ALC plate on the special link rod connections, crack embedded with sewing mortar and sealed plastic seal. In bed in connection with Angle steel around another window.
3.5 installation inside wallboard
All use in nanjing in wallboard C 125 thickness ALC board. Factory production, site installation. Construction process simple, from the weather and constraints. The installation of the wall inside the basic and external wall is similar. Toilet, kitchen and other parts of the special PVC sealed plastic panels.
4, the main technical achievements
1) box type concrete column
A box of concrete column column is in the box with the column of high strength concrete (C50) level, in a box with internal pillars support partition, form two materials supplement each other work together, the mechanism of the solution under load strength have not yet reached the limit to take the lead in the distortion of the problem too. It has high bearing capacity, the seismic performance is good, the characteristics of the construction is simple, general every four layers (each section 12 meters long) for a production installation unit, the whole root steel tube column a hoisting in place, as the main body structure installation created flow operation conditions. Box column-concrete outsourcing fire prevention board, concrete-filled steel tube column refractory limit more than 3 hours, meet the high building fire prevention requirements.
H beams of the processing, the stud welding, the use of reasonable process, decrease as far as possible from the residual stress due to welding, and the use of reasonable means error correction.
High strength bolt, the make and model of the interface requirements of high strength bolts with grinding wheel to grinding, polishing direction and the component stress direction perpendicular installation in the steel wire brush to clean rust, and according to the rules of the sliding resistance coefficient of friction do test, the requirement of sliding coefficient is not less than 0.35.
2) H beams
H steel beam all use rolling h-beam, its deformation ability, the seismic performance is good, high bearing capacity. H steel beam anti-corrosive paint is brushed outside, outsourcing fire prevention board, solve the steel structure of the anticorrosion, fire prevention problems. When construction steel beam have larger capacity, can greatly reduce the template workload. The beams are in the factory processing, transportation to the county hoisting, greatly reducing the workload, shorten the construction period.
3) resist lateral force support concrete tube structure
The elevator, stair position forming reinforced concrete core tube, as shear wall resist lateral force support, improve the structure stability, optimized for resistance to the lateral stiffness, improve the aseismic performance which has played a positive role.
4) cast-in-place reinforced concrete floor
By steel frame beams as a template next flange material supports, bamboo veneer spread, then press design laid reinforced, casting C30 concrete. Save template materials, shorten the construction period.
5) energy-saving composite wall outside
Wallboard especially outside wall in a certain sense, it is even more important than structure system. Because the main functions of the residential buildings by the realization of the wall. The project by the composite panels is classed as a "national housing construction recommend products," the nan