Newly-built foundation upper and lower column connecting structure for expanding underground space

• Main Authors: ZHOU JIANBO, WU BO, LIAO JIEHONG, LU LINGYUE, GAO ZUOPING, ZHANG CHANG
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2021
• Subjects: BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; FIXED CONSTRUCTIONS; FORMS; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHUTTERING

A newly-built foundation upper column and lower column connecting structure for expanding an underground space comprises an upper structure column (1) and a newly-built basement steel pipe concrete column (2) which are oppositely arranged, and four steel plates (3) connected end to end are pre-buried in the periphery of the lower portion of the upper structure column (1) and the periphery of the upper portion of the newly-built basement steel pipe concrete column (2). A high-strength inorganic grouting material (4) is poured into a space defined by the four steel plates (3), and the basement steel pipe concrete column (2) and the four steel plates (3) are welded into a whole. And implementation is convenient, and reliable connection force transmission between the upper column and the lowercolumn can be ensured. 一种用于扩展地下空间的新建基础上下柱连接结构，包括相对设置的上部结构柱（1）和新增的地下室钢管混凝土柱（2），所述上部结构柱（1）下部和新增的地下室钢管混凝土柱（2）上部四周预埋有首尾相接的四块钢板（3），该四块钢板（3）围成的空间内部浇筑有高强无机灌浆料（4），且地下室钢管混凝土柱（2）与四块钢板（3）焊接成整体。既便于实施，也能保证上下柱之间的连接传力可靠。