Ex-factoSemi-ready product storage Painting & packing ry Rust-removal Punching and boring Edge machining Puching End milling adjustment welding End milling Spare parts straightening Gas cutting Second material uttingbending Annealing tr Integral assembly adjustment welding adjustment welding Cutting,punching,sawingsawinlofting Raw material calibration 割assembly part assembly 第 6 页 共 35 页
四、钢结构安装方法
Steel structure installation method
(一)、安装前准备工作
Preparations prior to installation
根据钢结构安装工程要求，在钢结构安装前，必须对安装现场进行了解、场地已清理，吊装道路应通畅坚实，施工电源已明确，并做好如下工作：
As per the requirement of steel structure installation, before installation work started, it is need to check and clear the site, insure the access for hoisting is smooth and firm, and construction power is ready, the following works are also need to do simultaneously:
1、对各组预埋螺栓进行了水平高度、轴线偏移等进行测量，并与土建施工单位做好书面交接记录。 Survey the horizontal level and axial deviation of the all groups of embedded bolts, make records for the handing over with the civil work team in writing.
2、由于本工程构件量多面广，对钢构件应编号和确认，避免用错位置。
The since the quantity of structural members is large and has a great variety, it must be numbered and confirmed to avoid mis-placed.
3、会同业主或现场监理进行安装前的相关检查和验收。
Make necessary inspection and acceptance jointly with the employer and supervisor before installation.
0.050 (柱底标水准仪 ±0.00 (一次浇筑标±0.000 (基准标 RC基础 第 7 页 共 35 页
（二）、钢构件运输及堆放
Transportation and storage of structural members
1、根据钢构件几何尺寸、单重合理配备运输车辆，运输中需做好必要的软垫绑扎。
Transport structural members by appropriate vehicle as per the geometric dimension and unit weight, make necessary soft mat and binding during transportation.
2、钢构件在装卸、运输过程中，必须轻拿轻放。必要时垫起，防止损伤漆膜。
While loading/unloading and moving the structural members, it must be handled gently. Insert spacer while necessary to avoid damage the painting. 3、运输堆放应有专人负责指挥和管理
Someone must be put in charge of transportation and storage.
（三）、结构吊装方法
Structure hosting and installation method 1、 钢结构安装思路
Consideration about installation of steel structure
本工程钢结构为带有桁车梁的标准门式钢架，单榀刚架平面外刚度小，进货顺序从1轴线开始，先安装1~2轴线的刚架，同时安装柱间支撑、屋面支撑并校正形成稳定的空间体系后，再向29轴线推进，钢柱采用单机旋转法吊装，钢梁地面拼装后采用双机抬吊法。桁架式托梁采用地面螺栓拼接，双机抬吊法。吊车梁高度距屋面檩条距离有3.5米，满足最小起吊高度，可在屋面结构安装完成后或穿插结构吊装过程中进行。
The type the structure in this project is a standard portal-framed structure with moving crane beam, external rigidity of a single frame is small, the sequence of mobilization of structure is start from grid line 1, first
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install steel frame at grid line 1~2, bracing to column and roof installed and adjusted simultaneously to form a stable space system, then moved to grid line 29. Steel column to be hoisted and installed through Singe-Crane-Rotating-method, the steel beam to be hoisted through Two-Crane-Lifting-method after assembled on the ground. Truss trimmer to be assembled with bolts on the ground and hoisted through Two-Crane-Lifting-method. Space between crane beam and roof purlin is 3.5m, it is enough for minimum hosting space, and can be done after the structure installed or alternated in. 2、钢柱的吊装与校正
Hoisting and installation and adjustment of steel column （1） 钢柱采用旋转法吊装，吊装示意图如下：
Steel column to be hoisted through Rotating Method, diagrammatic drawing as follows:
3 2 1 （a） （b） （a） 平面布置；（b）旋转过程；1－柱平放时，2－起吊 旋转法吊装示意简图
(a) plan layout (b) rotating process 1-column lain down 2-hoisting
Rotating Method Hoisting Diagrammatic Drawing
(2)吊装应有专人指挥，吊装前进行安全、质量、技术的详细交底。
Someone must be in charge of hoisting and installation, safety, quality and technology to be talked over in details before hoisting.
(3)为提高吊装效率，在堆放柱时，尽量使柱的绑扎点、柱脚中心与基础中心三点共圆弧。 For the efficient hosting, while piling the columns, put the binding point/column footing center/base center at a same arc.
(4) 起吊时吊机将绑扎好的柱子缓缓吊起离地20cm后暂停，检查吊索牢固和吊车稳定，同时打开回转刹车，然后将钢柱下放到离安装面40~100 mm，对准基准线，指挥吊车下降，把柱子插入锚固螺
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栓临时固定，并在两个方向采用临时拉结稳定柱子的结构。
While the column is being hoisted slowly 20cm above the floor, stop hoisting for a while to check the sling and crane, open the swing brake, then put the column down at 40~100 mm to the installation plane, align to the datum line, direct the crane descend, insert the column to the anchor bolt and fixed temporarily, tie the column at two direction to stable the column structure.
(5)钢柱经初校正后，待垂直度偏差控制在20mm 以内方可使起重机脱钩，钢柱的垂直度用经纬仪检验，如有偏差立即进行校正，在校正过程中随时观察底部和标高控制块扎之间是否脱空，以防校正过程中造成水平标高误差。
After initial adjustment of the column, only when the vertical deviation controlled within 20mm then can remove the hook of crane, check the verticality with theodlite, any deviation to be adjusted immediately, while adjustment is being done, observe the bottom and level control block to avoid horizontal level deviation.
(6) 柱子的垂直校正，测量用两台经纬仪安置在纵横轴线上，先对准柱底垂直翼缘板或中线，再渐渐仰视到柱顶，如中线偏离视线，表示柱子不垂直，可指挥调节拉绳或支撑，可用撬动等方法使柱子垂直。在实际工作中，常把成排的柱子都竖起来，然后进行校正。这时可把两台经纬仪分别安置在纵横轴线一侧，偏离中线一般不得大于3m。在吊装屋架时或安装竖向构件时，还须对钢柱进行复核校正。
Vertical adjustment of the column, fix two theodlites to the longitudinal and transverse axis, first aim at the column bottom wing or center line then move upward to the column top, if the center line drifted off the line of sight, to adjust the tie rope or support, make the column to be vertical through prying. Usually to erect a row of columns first then to do adjustment. At that time, two theodlites can be placed at one side of longitudinal and transverse axis, deviation to the centerline not more than 3m. while hoisting roof truss or installing vertical members, the steel column must be re-check and adjusted. 2、钢梁的吊装
Hoisting and installation of steel beam
(1) 1）吊装思路：钢架整体跨度约135米，钢梁共分9节制作及运输，最大截面钢梁节重量为2.5吨，采用分节安装的方法。本工程钢柱、钢梁、平台梁及檩条的安装均采用分件吊装法：一是对钢柱依次进行吊装；二是对柱间支撑进行吊装；三是对屋面梁、水平支撑、联系梁依次进行吊装。
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