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1开发目的随着上旋自装固定式塔机的不断推广应用,国内中小型建筑施工企业在中低层(7～10层)楼房建筑中,如住宅小区建筑开发,基本上改变了以往使用卷扬机龙门架和井架占据主要市场的落后状况。上旋自装塔机以其价格合理、简单实用、经济实惠和安全可靠等突出特点,深受中小型建筑施工单位的厚爱。许多施工单位
1 Development Goal With the continuous promotion and application of upper-spinning self-installed fixed tower cranes, domestic small and medium-sized construction companies have basically changed the use of hoists in the construction of low-rise (7-10 floors) buildings such as residential quarters. Gantry and derricks occupy the backwardness of major markets. The upper-spinning self-loading tower crane is favored by small and medium sized building construction units for its outstanding features such as reasonable price, simple and practical, economical benefits and safety and reliability. Many construction units