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塔吊的定位关乎到塔吊可否正常施工、是否存在安全隐患、后期是否方便拆卸等等,因此定位好塔吊的位置至关重要。
The location of the tower crane is related to the normal construction of the tower crane, whether there is a security risk, whether the latter is convenient disassembly and so on, so the location of the tower crane is very important.
1、所确定的塔吊位置是否可行,首先能否保证塔吊安全稳定,避免塔吊设在回填土上,要考虑塔吊距基坑底角的水平距离是否满足安全要求,即塔吊基础面(前支腿位置)与基坑底角点连线,此线与水平线的夹角应 ≤450 安全剪切角的要求,按此要求,塔吊距建筑物较远,尤其是深基坑, 给塔吊附着带来困难, 如要减小此距离,应提前与边坡支护设计单位联系,在边坡支护方案中,进行局部加载设计,或将塔基改为桩基。
Crane position 1, the first is feasible, can ensure the safety of tower crane, tower crane in avoiding backfill, to consider whether the tower foundation pit horizontal distance Diaoju angle to meet the safety requirements, namely the tower crane foundation surface (front leg position) to connect with the pit bottom, the angle between this line and the horizontal line should be less than or equal to 450 safety requirements of shear angle, according to the requirement of the crane is far away from buildings, especially deep pit, bring difficulties to the tower crane attachment, such as to reduce this distance, should advance with the slope supporting design units, in the slope support scheme, for local loading design, or will be changed to the pile foundation.
2、塔吊布置要充分考虑塔吊的需利用率,根据主要材料的存放场地要便于起吊,尽量减小吊运过程中塔臂转角,以提高塔吊利用率。在群塔平面布置时,既要任务区域明确,又要方便互相应急支援。在群塔平面设计时,各相邻塔吊之间,必须满足低塔吊的塔臂不危及高塔吊塔身的安全。
2, crane layout should take full account of the utilization rate of the tower crane, according to the main material storage site to facilitate the lifting, as far as possible to reduce the lifting process of the tower arm angle, in order to improve the utilization rate of tower crane. In group layout, not only to the task area clear, but also provide emergency support to each other. In a group of graphic design, between the adjacent tower crane, tower crane must meet the low arm without endangering the safety of the tower crane tower.
3、塔吊定位应根据现场实际条件和综合技术及经济效果确定,如现场确无立塔条件或考虑覆盖面问题或考虑塔吊附着问题等,可考虑将塔吊设计在建筑结构内,如设在仅有地下室的结构部分,特殊情况设在电梯 井筒内或穿越裙房楼层,如采取塔吊立于建筑结构内。

塔机标准节3, the tower crane location shall be determined according to the actual conditions and comprehensive technical and economic effects, such as the scene there is no tower condition or consider coverage problems or consideration of tower crane attachment problems, consider the design of the crane in the building structure, such as only in the basement structure, special circumstances in the elevator shaft within or across the podium floors. Such as tower crane in construction structure.
4、高层建筑施工的塔吊平面位置,应考虑满足塔吊的附着条件,塔吊应附着于柱或墙上,尽量选择大截面构件进行附着,塔吊应位于左右附着结构的中间位置,附着点的要提前征得设计单位的认可(塔吊的水平 推力结构能否承受)。塔吊不能距主体结构太近、太远,否则均会造成附 着困难。
The crane plane position 4, the construction of high-rise building, the tower crane should be considered to meet the conditions attached, should be attached to the tower column or wall, try to choose a large section of tower crane attachment member, should be located around the middle position attachment structure, attachment points to advance consent of the design unit approved (horizontal thrust structure of tower crane can bear). Tower crane can not be too close to the main structure, too far, otherwise it will cause adhesion difficulties.
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