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1、钢结构厂房地脚螺栓的埋置方法The embedding of anchor bolts on the steel structure factory building 地脚螺栓的埋置是钢结构厂房施工的一大关键，干脆影响到上部钢结构厂房的垂直度，方正度。若地脚螺栓的埋置偏差过大，则会对后期的上部施工中的结构螺栓，檩条螺栓，围梁螺栓的连接等造成很大的困难。在施工过程中，我们要着重限制地脚螺栓的平面位置，垂直度及螺栓钉标高，以尽可能削减上述误差。 For direct influence on the perpendicularity and square, the embedding of anc
2、hor bolts is one of the most important points during the construction of steel structure building. There would be great difficulties in working on structural bolts, purline bolts, and girt bolts if there is any declination in embedding the anchor bolts. During construction, the great emphasis should
3、 be placed on the horizontal position, prependicularity and elevation of bolts in order to reduce such declination to the least.要求：平面位置误差：3mm，螺栓顶标高误差：3mmBasic requirements:Horizontal position declination: 3mmAnchor bolts top elevation declination: 3mm1 须配备的设备，工具及施工人员： Working staff, Necessary equipm
4、ent and Tools:1.1 设备及工具：Equipment and tools:光学水准仪及脚架，标尺 1套Optical water level & horse and staff guage 1 光学经纬仪及脚架，花插 1套Optical theodolite, horse & flower brace 1 50m以上钢尺 1把Steel rule (over 50m) 13m5m钢尺 2把Steel rule (3-5m) 2线锤 1只Thread hammer 1模线 若干Module string some铁锤 1把Hammer 1定位界椿 若干Orientation mar
5、ker some电焊机 1台Electric welding machine 1水平靠尺（高精度） 1把Leveling guiding rule (High precision) 11.2 施工人员：Working staff有阅历的测量工程师 1人Well-experienced meterage engineer 1钢筋工 1人Reinforcing steel bar worker 1电焊工 1人Electric welder 1木工 1人Carpenter 1协助工 2人Assistant 2 2板样定位及水准点： Model orientation and Standard Lev
6、eling Point2.1 板样定位： Model Orientation:依据图纸要求，对施工现场进行放样，定位。在全部建筑物的角点，必需设立横向，纵向两个限制界柱，并实行适当的加固措施，避开限制界椿在施工过程中遭破坏，全部横向，纵向轴线均设立相对固定的定位椿。全部定位椿的顶标高尽量限制在0000上1020cm，以便日后拉模线，拉尺丈量复核。定位界椿设立之后，应实行反方向闭合测量，修正成果，以削减平面误差To locate the position and lofting on the job site according to the drawing. Both transverse a
7、nd lengthways controlling boundary column should be embedded at the corner of every building, the corresponding consolidating measures also should be taken so as to prevent the controlling boundary column from damaging during the erection. The top elevation of fixed location boundary marker on both
8、transverse and lengthways axises should be controlled between 10-20cm on +0.00, which would be more convenient for the re-measurement in the future. After the embedding of position fixed boundary marker, opposite closing measure should be taken to adjust the works, in order to reduce the inaccuracy
9、on plane level. 2.2 水准点： Leveling point水准点的设立同样相当重要，它干脆影响到地脚螺栓顶部标高的限制。建议沿建筑物周边每40m左右设立一个临时水准点。同样，临时水准点设立后，亦须经过闭合测量。 Considering its direct influence on controlling the top elevation of anchor bolts, the establishment of leveling point is also a very important procedure. We suggest you set a temporar
10、y level point every 40m around the building. Same as the above procedure, closing measure is also required after the establishment.3 地脚螺栓的埋置及打算工作： Preparation and embedding of anchor bolts3.1 地脚螺栓套板的加工： The process of anchor bolts cleading 地脚螺栓的套板，其尺寸及套板上的开孔与日后上部结构中柱脚底板的尺寸及开孔相一样。套板应采纳不小于20mm厚的木板，依据节
11、点详图所规定的尺寸及开孔位置进行加工。开孔直径应比地脚螺栓直径大2mm为宜。同时，套板面须用醒目标记标出，纵横轴线穿过该组地脚螺栓的详细位置，以便日后复核。The size of the anchor bolt cleading and the aperture therein should be identical with that of the base plate in the upside structure. Such cleading should adopt the wood board no less than 20mm and be processed according
12、to the size and aperture position stated in the specific graphics. It would be better if the diameter of aperture is 2mm bigger than that of anchor bolts. At the same time, the cleading surface should be lined out by distinct sign with the transverse and lengthways axis through the position of anchor bolts in the same group, so as to facilitate the re-check in the future.3.2 地脚螺栓的埋置： The embedding of anchor bolts:基础钢筋起先施工时，地脚螺栓埋置工作也应同时起先，穿插进行。埋设地脚螺栓前，先应用模线放出相应的纵，横向轴线，同时用钢尺在基础钢筋上放出每组地脚螺栓的位置。埋置地脚螺
