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CN-122013901-A - Assembled building steel construction economizer system

CN122013901ACN 122013901 ACN122013901 ACN 122013901ACN-122013901-A

Abstract

The invention discloses an energy-saving system for an assembled building steel structure, which comprises a vertical bearing steel column, a horizontal bearing steel beam and a heat bridge blocking system cooperatively arranged on the steel column and the steel beam, wherein the heat bridge blocking system consists of a node heat bridge blocking unit, a component heat bridge blocking unit, a joint heat bridge blocking unit and a detachable upgrading unit. The joint thermal bridge blocking unit adopts a cooperative connection structure of a metal end plate, a nonmetal heat insulation block and a through bolt to realize disconnection and reliable bearing of a metal heat conduction path of a connecting joint, the member thermal bridge blocking unit prolongs the heat conduction path by arranging a closed cavity and a heat insulation medium in a non-key stress area of a steel column and a steel beam, and the joint thermal bridge blocking unit is provided with a hasp seat with a heat insulation embedded strip and a U-shaped groove with a sealed heat insulation assembly by depending on the steel column and the steel beam, and the detachable upgrading unit. The system forms a node-component-joint omnibearing thermal bridge blocking system, remarkably improves the energy-saving effect and adapts to the full life cycle of the building.

Inventors

  • WANG QIWEI
  • CHEN LINGFEI
  • CHEN SHENGBIN
  • SONG XIAOYANG
  • YUAN YIHAN

Assignees

  • 浙江浙建钢结构有限公司

Dates

Publication Date
20260512
Application Date
20260119

Claims (9)

  1. 1. The energy-saving system for the assembled building steel structure comprises a vertical bearing steel column (1) and a horizontal bearing steel beam (2), and is characterized by further comprising a thermal bridge blocking system (3) cooperatively arranged on the steel column (1) and the steel beam (2), wherein the thermal bridge blocking system (3) comprises: The node thermal bridge blocking unit (31) is arranged at the connecting node of the steel column (1) and the steel beam (2) and is a heat insulation bridging structure which is mechanically disconnected; The component heat bridge blocking unit (32) is integrated on the body of the steel column (1) and the steel beam (2) and is a cavity heat insulation structure with an optimized section; The joint thermal bridge blocking unit (33) is arranged at the joint of the steel column (1) and the steel beam (2) and the prefabricated enclosure module respectively and is of a sealed thermal bridge cooperative structure, an L-shaped hasp seat (331) with a heat insulation embedded strip (332) is arranged at the joint of the steel column (1) and the prefabricated wallboard, and a U-shaped groove (333) with a sealed heat insulation component is arranged at the joint of the steel beam (2) and the roof module; The detachable upgrading unit is correspondingly arranged on the node thermal bridge blocking unit (31), the component thermal bridge blocking unit (32) and the joint thermal bridge blocking unit (33) and comprises a standardized bolt interface, a positioning pin hole, a drawing guide rail and a pluggable clamping groove, so that the detachable replacement of each thermal bridge blocking module is realized.
  2. 2. The energy-saving system for the assembled building steel structure according to claim 1, wherein the node thermal bridge blocking unit (31) comprises a left metal end plate (311) fixed at the end part of the steel beam (2), a right metal flange plate (312) fixed on the side surface of the steel column (1), and a nonmetal heat insulation block (313) clamped between the left metal end plate (311) and the right metal flange plate (312), wherein a concave-convex mortise structure (314) is arranged on the contact surface of the left metal end plate (311) and the nonmetal heat insulation block (313) and the contact surface of the right metal flange plate (312) and the nonmetal heat insulation block (313), and mechanical connection and metal heat conduction path disconnection of the steel column (1) and the steel beam (2) are realized through fastening engagement of penetrating bolts, and the concave-convex mortise structure (314) comprises bosses (315) arranged on two sides of the nonmetal heat insulation block (313), and grooves correspondingly arranged on the left metal end plate (311) and the right metal flange plate (312).
  3. 3. The energy-saving system for the assembled building steel structure, as set forth in claim 1, is characterized in that the component heat bridge blocking unit (32) comprises a closed honeycomb cavity (321) formed in a non-critical stressed web area of the steel column (1), a heat insulation medium (322) is embedded in the cavity, and a detachable heat insulation assembly (323) is formed in a midspan web area of the steel beam (2).
  4. 4. The energy-saving system with the assembled building steel structure according to claim 3, wherein the detachable heat insulation assembly (323) comprises two heat insulation plates (3231) and a fixing box (3232), the two heat insulation plates (3231) are fixedly arranged through springs, the plurality of heat insulation plates (3231) are uniformly and fixedly arranged on the heat insulation plates (3231), a plurality of holes for the fixing box (3232) to be clamped are formed in a midspan web area of the steel beam (2), a heat insulation medium (322) is embedded in the fixing box (3232), and a mounting groove for the heat insulation plates (3231) to be mounted is formed in the midspan web area of the steel beam (2).
  5. 5. The energy-saving system for the assembled building steel structure according to claim 1 is characterized in that the L-shaped buckle seat (331) is welded and fixed on the outer side of a flange plate of a steel column (1), a filler rod groove is formed in the inner side of the L-shaped buckle seat, the heat insulation filler rod (332) is an integrated structure of glass fiber reinforced plastic and elastic sealant, a clamping groove matched with the L-shaped buckle seat (331) is reserved on the side edge of the prefabricated wallboard, an elastic sealing gasket is adhered to the inner side of the clamping groove, and fastening of the wallboard and the buckle seat is achieved through a self-tapping bolt.
  6. 6. The energy-saving system for the assembled building steel structure according to claim 1, wherein the U-shaped groove (333) is formed in the center of the top of the upper flange of the steel beam (2), is arranged along the length direction of the steel beam (2) in a through-length mode, water-swelling water stop strips (334) and hard heat insulation foam (335) are sequentially filled in the groove from bottom to top, an L-shaped metal overlap edge is arranged at the end of the roof module, a nonmetal heat insulation gasket is adhered below the overlap edge, and the roof module is fastened above the U-shaped groove (333) through high-strength bolt pressing.
  7. 7. The energy-saving system of assembled building steel structure according to claim 2, wherein the nonmetallic heat insulation block (313) is made of glass fiber reinforced plastic or ceramic matrix composite material, and the heat insulation medium (322) is vacuum insulation panel or high-density rock wool.
  8. 8. The energy-saving system of the assembled building steel structure according to claim 4, wherein the shell of the fixing box (3232) is made of a nonmetallic composite material, and a spring locking pin is arranged between the abutting heat insulation plate (3231) and the midspan web of the steel beam (2).
  9. 9. The energy-saving system of an assembled building steel structure according to claim 1, wherein the standardized bolt interface is arranged on the left metal end plate (311), the right metal flange plate (312) and the nonmetal heat insulation block (313) corresponding to the positioning pin hole, the positioning pin hole is positioned at the inner side of the bolt interface, and the pluggable clamping groove is arranged between the L-shaped buckle seat (331) and the heat insulation embedded strip (332) corresponding to the pluggable clamping groove.

Description

Assembled building steel construction economizer system Technical Field The invention belongs to the technical field of steel structure energy conservation, and particularly relates to an assembled building steel structure energy-saving system. Background The assembled steel structure is widely applied in the field of construction by virtue of the characteristics of high construction efficiency, environmental protection and excellent anti-seismic performance. But the steel structure has strong self heat conduction performance and remarkable heat bridge effect, and becomes a core bottleneck which restricts the popularization of the steel structure in energy-saving buildings. The existing thermal bridge blocking scheme of the assembled steel structure has a plurality of defects, and the energy-saving effect, the structural reliability and the assembled construction suitability are difficult to be considered. In the aspect of blocking a thermal bridge of a connecting node of a steel column and a steel beam, the existing scheme is mainly divided into three types. The heat insulation layer scheme is adopted, heat insulation plates are wrapped outside the nodes and fixed through metal binding tapes, the heat bridge cannot be thoroughly blocked, the metal binding tapes and the connecting bolts penetrate through the heat insulation layer to form an invisible heat bridge, the heat insulation layer is easy to fall off and age after long-term use, the heat insulation effect is greatly attenuated, meanwhile, the field wrapping construction process is complex, the suitability is poor, and the assembly type construction efficiency is affected. Secondly, the scheme of filling heat insulation materials is that foaming agents or heat insulation glue are filled in joint connection gaps, the compression strength of the filling materials is low, the joint load cannot be effectively transmitted, metal connecting pieces are required to be additionally arranged, the metal connecting pieces again form a heat bridge, glue materials are easy to age and crack, heat leakage is easy to occur in the later stage, and the heat bridge effect rebounds. Thirdly, the scheme is broken to simple metal, adopts non-metal gasket to separate girder steel and steel column, but it can only realize simple physics and separate, and unreliable mechanical locking structure, the node is cut, torsion resistance is not enough, can't satisfy steel construction bearing requirement, and the gasket easily takes place the displacement, leads to the node atress uneven, has the potential safety hazard, and plane contact's clearance easily produces the air convection simultaneously, and the thermal-insulated effect is limited. Disclosure of Invention The invention aims to solve the defects in the prior art and provides an assembled building steel structure energy-saving system. In order to achieve the above purpose, the present invention adopts the following technical scheme: the energy-saving system for the assembled building steel structure comprises a vertical bearing steel column and a horizontal bearing steel beam, and further comprises a thermal bridge blocking system cooperatively arranged on the steel column and the steel beam, wherein the thermal bridge blocking system comprises: The node thermal bridge blocking unit is arranged at the joint of the steel column and the steel beam and is a heat insulation bridging structure which is mechanically disconnected; The component heat bridge blocking unit is integrated on the body of the steel column and the steel beam and is a cavity heat insulation structure with an optimized section; The joint thermal bridge blocking unit is arranged at the joint of the steel column and the steel beam and the prefabricated enclosure module respectively and is of a sealed thermal bridge cooperative structure, an L-shaped hasp seat with a heat insulation embedded strip is arranged at the joint of the steel column and the prefabricated wallboard, and a U-shaped groove with a sealed heat insulation component is arranged at the joint of the steel beam and the roof module; The detachable upgrading unit is correspondingly arranged on the node thermal bridge blocking unit, the component thermal bridge blocking unit and the joint thermal bridge blocking unit and comprises a standardized bolt interface, a positioning pin hole, a drawing guide rail and a pluggable clamping groove, so that the detachable replacement of each thermal bridge blocking module is realized. The joint thermal bridge blocking unit comprises a left metal end plate fixed at the end part of the steel beam, a right metal flange plate fixed on the side surface of the steel column and a nonmetal heat insulation block clamped between the left metal end plate and the right metal flange plate, wherein the contact surface of the left metal end plate and the nonmetal heat insulation block and the contact surface of the right metal flange plate and the nonmetal heat insulation