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在抗震加固时,一般采用钢拉条或钢筋混凝土楔来拉结圈梁。这种作法的缺点是破坏墙面较多,影响室内美观,在施工期间影响室内工作。为了克服上述缺点,在某钢研所主楼的抗震加固设计中,我们采用锚杆来拉结圈梁。这种作法破坏墙面极少(仅钻孔)。因锚杆在横墙之内,施工期间室内工作和美观均不受影响,加固施工情况良好。一、设计情况
In seismic strengthening, steel pull strips or reinforced concrete wedges are generally used to pull ring beams. The disadvantage of this practice is that it destroys more walls and affects the appearance of the interior. It affects indoor work during construction. In order to overcome the above-mentioned shortcomings, in the seismic strengthening design of the main building of a steel research institute, we use bolts to pull the ring beam. This practice destroys very few walls (drilling only). As the anchors are within the horizontal wall, the indoor work and aesthetics are not affected during construction, and the reinforcement construction is in good condition. First, the design situation