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A platform for research: civil engineering, architecture and urbanism
Precast slab formwork nesting connection structure and construction method
The invention relates to a precast slab formwork nesting connection structure. The structure comprises a foundation pit, a cushion layer arranged at the bottom of the foundation pit and a cap foundation arranged on the cushion layer, wherein U-shaped clamping grooves are formed in the peripheral sides of the cap foundation and in the upper plane of the cushion layer; precast slabs I and precast slabs II are arranged correspondingly in the U-shaped clamping grooves in the two sides of the cap foundation in the length and width directions, the adjacent precast slabs I and precast slabs II are mutually nested to form a slab formwork, and square timbers are arranged transversely on the periphery of the slab formwork to clamp the precast slabs I and the precast slabs II; steel pipes are arranged between the square timbers and the side walls of the foundation pit for support. The precast slabs are in nested connection by staggered joints to form the slab formwork, internal hoop force is formed by nested connection of the slab formwork under the action of pressure of backfill soil outside the defined shape of the slab formwork, so that a stable stress system is formed, the construction process is simple and convenient, and a good supporting structure for a cap formwork can be formed.
本发明涉及一种预制板胎膜嵌套连接结构，包括基坑、设置在基坑底部的垫层以及设置在垫层上的承台基础，位于所述承台基础的四周侧、所述垫层上平面均设置有U型卡槽；所述承台基础长度、宽度方向两侧的所述U型卡槽内分别对应设置有预制板一和预制板二，相邻的所述预制板一和预制板二相互嵌套以构成板胎膜，所述板胎膜四周侧横向设置有方木夹持所述预制板一和预制板二；所述方木和基坑侧壁之间设置有钢管以支撑。本发明的预制板板材之间通过错缝接茬相互嵌套连接以构成板胎膜，在板胎膜合围形状以外回填土的压力作用下，板胎膜嵌套连接形成内箍力，从而形成稳固的受力体系，施工工艺简便，可对承台模板形成良好支护结构。
Precast slab formwork nesting connection structure and construction method
The invention relates to a precast slab formwork nesting connection structure. The structure comprises a foundation pit, a cushion layer arranged at the bottom of the foundation pit and a cap foundation arranged on the cushion layer, wherein U-shaped clamping grooves are formed in the peripheral sides of the cap foundation and in the upper plane of the cushion layer; precast slabs I and precast slabs II are arranged correspondingly in the U-shaped clamping grooves in the two sides of the cap foundation in the length and width directions, the adjacent precast slabs I and precast slabs II are mutually nested to form a slab formwork, and square timbers are arranged transversely on the periphery of the slab formwork to clamp the precast slabs I and the precast slabs II; steel pipes are arranged between the square timbers and the side walls of the foundation pit for support. The precast slabs are in nested connection by staggered joints to form the slab formwork, internal hoop force is formed by nested connection of the slab formwork under the action of pressure of backfill soil outside the defined shape of the slab formwork, so that a stable stress system is formed, the construction process is simple and convenient, and a good supporting structure for a cap formwork can be formed.
本发明涉及一种预制板胎膜嵌套连接结构，包括基坑、设置在基坑底部的垫层以及设置在垫层上的承台基础，位于所述承台基础的四周侧、所述垫层上平面均设置有U型卡槽；所述承台基础长度、宽度方向两侧的所述U型卡槽内分别对应设置有预制板一和预制板二，相邻的所述预制板一和预制板二相互嵌套以构成板胎膜，所述板胎膜四周侧横向设置有方木夹持所述预制板一和预制板二；所述方木和基坑侧壁之间设置有钢管以支撑。本发明的预制板板材之间通过错缝接茬相互嵌套连接以构成板胎膜，在板胎膜合围形状以外回填土的压力作用下，板胎膜嵌套连接形成内箍力，从而形成稳固的受力体系，施工工艺简便，可对承台模板形成良好支护结构。
Precast slab formwork nesting connection structure and construction method
一种预制板胎膜嵌套连接结构及施工方法
SU XIU (author) / ZHAO TENGFEI (author)
2020-08-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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