曲阜师范大学生化楼风化墙体的鉴定加固

ASSESSMENT AND REINFORCEMENT OF WEATHERED WALL OF BIOCHEMISTRY BUILDING AT QUFU NORMAL COLLEGE

曲阜师范大学生化楼经多年使用,一层外墙墙体多处风化,部分出现竖缝;内墙部分主梁和门窗过梁下亦有裂缝。“冰裂作用”是造成外墙风化和砖、砂浆强度降低的主要因素。加固处理方案为:墙体做防水防潮处理,大跨度房间墙体附壁柱加固,梁下有八字形裂缝墙体双面钢筋网加固,对开裂的钢筋砖过梁采用加设角钢加固。

Having been used for many years,the external walls of the building were weathered, vertical cracks took place in some part,and there also appeared cracks in the internal walls under some main beams and door/window lintels.Analysis shows that ＂ice crack＂ is the main factor causing wall weathering and strength declination of brick and mortar.And the reinforcement plan is to make waterproofing and moisture proofing treatment to the walls, add wall columns to the large-spanned room walls, reinforce walls under the beam with double-layer steel meshes and strengthen the cracked re-bar brick lintels with additional steel angles.