TEST STUDY OF CONCRETE-MASONRY COMPOSITE UNDERPINNING BEAM
In upgrading, repairing and renovation of masonry structures, due to change of serviceability function, sometime partial masonry walls need to be dismantled. In order to secure the safety of the structures during construction and lifetime, underpinning beam must be constructed to support the up structural members. Traditionally the supplemental support measurement must be taken during the underpinning beam construction. The procedure of this method is to erect supplemental supports firstly, then to dismantle the walls, and to construct the underpinning beam finally. But it is prove that there are safety crisis and non-economical in practice. During walls dismantling, the structural safety depends on supplement support only. To solve this problem, an innovative approach-Masonry Concrete Composite Underpinning Beam (MCCUB) has been developed. Using MC Composite underpinning beam, supplemental support does not need. Walls dismantlement is done after MC Composite underpinning beam construction. In this paper, the MC composite underpinning beam is introduced. The load carrying capacity of MC composite underpinning beam has been tested. By experimental study, the mechanical characteristic of the beam has been discussed. Design and construction suggestions of the beam have been made.
MC composite underpinning beam renovation deflection load carrying capacity
Jun-jing FANG Xin-gang ZHOU Qiang LI Zong-bo SONG Tao CUI
Yantai University, China
国际会议
The 3rd International Conference on The Concrete Future(第三届混凝土未来国际会议)
烟台
英文
195-200
2008-10-17（万方平台首次上网日期，不代表论文的发表时间）