Concrete slabe structural member and construction method for pouring same

Abstract

A concrete slab structural member comprises a frame of cold bend thin wall steel profiles and concrete enclosing the same, in which the main surfaces of two longitudinal cold bend thin wall steel profiles ( 51, 52, 91, 92 ) included in each longitudinal cold bend thin wall steel profile keel are parallel to the main surface of the concrete slab, the two longitudinal cold bend thin wall steel profiles ( 51, 52, 91, 92 ) are spaced apart and opposite each other along a direction perpendicular to the main surface of the concrete slab, so that a space ( 200 ) for the concrete to flow through when it is poured is left between the two longitudinal cold bend thin wall steel profiles. Also provided is a construction method for building a concrete slab structural member. The structural member has avoided or reduced as much as possible the problem of the flowing of concrete being hindered when it is poured, due to the placement of the cold bend thin wall steel profiles perpendicular to the concrete slab, which exists in the concrete structural member with cold bend thin wall steel profiles in the prior art, and the problem of cold bridges that is created by the perpendicularly placed cold bend thin wall steel profiles in the concrete formed after pouring the same.

1 . A concrete slab structural member, comprising:
 A frame of cold bend thin wall steel profiles;   Concrete that encloses the frame of cold bend thin wall steel profiles;   The frame of cold bend thin wall steel profiles comprises a plurality of longitudinal cold bend thin wall steel profile keels that are spaced apart along the lateral extension direction of the main surface of the concrete slab structural member and placed in parallel to one another;   Characterized in that, each longitudinal cold bend thin wall steel profile keel comprises two longitudinal cold bend thin wall steel profiles, the main surfaces of the longitudinal cold bend thin wall steel profiles are parallel to the main surface of the concrete slab structural member, the two longitudinal cold bend thin wall steel profiles are spaced apart and opposite each other along a direction perpendicular to the main surface of the concrete slab structural member, so that a space for the concrete to flow through when it is poured is left between the two longitudinal cold bend thin wall steel profiles. The space left between the two longitudinal cold bend thin wall steel profiles is filled with concrete.   
     
     
         2 . The concrete slab structural member as set forth in  claim 1 , characterized in that the two longitudinal cold bend thin wall steel profiles are fixedly connected through connection steel plates spaced apart along the longitudinal direction of the cold bend thin wall steel profiles. 
     
     
         3 . The concrete slab structural member as set forth in  claim 2 , characterized in that the longitudinal cold bend thin wall steel profiles included in each longitudinal cold bend thin wall steel profile keel have a plurality of through holes on the rolling keel edge distributed along the lengthwise direction thereon for concrete to flow through when it is poured, and the connection steel plates have holes on the rolling edge for concrete to flow through when it is poured. 
     
     
         4 . The concrete slab structural member as set forth in  claim 1 , characterized in that the frame of cold bend thin wall steel profiles further comprises:
 a lateral connection cold bend thin wall steel profile keel, which comprises lateral cold bend thin wall steel profiles;   a diagonal support cold bend thin wall steel profile keel, which comprises diagonal cold bend thin wall steel profiles;   a plurality of longitudinal cold bend thin wall steel profile keels placed in parallel are connected through said lateral connection cold bend thin wall steel profile keel, said diagonal support cold bend thin wall steel profile keel is connected with said longitudinal cold bend thin wall steel profile keel, said longitudinal cold bend thin wall steel profile keel, said lateral connection cold bend thin wall steel profile keel and said diagonal support cold bend thin wall steel profile keel are connected to form a stable overall rigid structure.   
     
     
         5 . The concrete slab structural member as set forth in  claim 1 , characterized in that the concrete slab structural member is a concrete wall slab structural member, and said longitudinal cold bend thin wall steel profiles are vertical cold bend thin wall steel profiles that are placed to extend vertically. 
     
     
         6 . The concrete slab structural member as set forth in  claim 5 , characterized in that it further comprises: a starting platform disposed at the bottom. Said starting platform is fixed with a starting sleeve thereon, said starting sleeve has starting vertical cold bend thin wall steel profile keels that project upwardly, and said longitudinal cold bend thin wall steel profiles are fixedly connected with said starting longitudinal cold bend thin wall steel profile keels. 
     
     
         7 . The concrete slab structural member as set forth in  claim 5 , characterized in that said concrete wall slab structural member is a cast-in-place concrete wall slab structural member, which further comprises an external concrete form and an internal concrete form, said external concrete form is disposed at one side of said frame of cold bend thin wall steel profiles, said internal concrete form is disposed at another side of said frame of cold bend thin wall steel profiles, both said external concrete form and said internal concrete form are fixedly connected with said frame of cold bend thin wall steel profiles, both said external concrete form and said internal concrete form have a space formed with said longitudinal cold bend thin wall steel profiles, and said concrete is disposed between said external concrete form and said internal concrete form and covers said frame of cold bend thin wall steel profiles. 
     
     
         8 . The concrete slab structural member as set forth in  claim 7 , characterized in that the holes on the rolling keel edge of the two longitudinal cold bend thin wall steel profiles are opposite each other, and the running direction of said holes on the rolling keel edge is perpendicular to the main surface of said concrete slab structural member;
 said concrete slab structural member further comprises a tension connection bolt, an external tension bolt, an internal tension bolt, an external tension sleeve, and an internal tension sleeve, the tension connection bolt runs through some of the holes on the rolling keel edge, said external tension sleeve is disposed between said external concrete form and the longitudinal cold bend thin wall steel profile of the two longitudinal cold bend thin wall steel profiles included in each longitudinal cold bend thin wall steel profile keel that is located at the external side, said internal tension sleeve is disposed between said internal concrete form and the longitudinal cold bend thin wall steel profile of the two longitudinal cold bend thin wall steel profiles included in each longitudinal cold bend thin wall steel profile keel that is located at the internal side;   two ends of said tension connection bolt run through said holes on the rolling keel edge, respectively, to be connected with said external tension sleeve and said internal tension sleeve, said external tension bolt runs through said external concrete form to connect with said external tension sleeve so as to fixedly connect said external concrete faun with said longitudinal cold bend thin wall steel profile keel, and said internal tension bolt runs through said internal concrete form to connect with said internal tension sleeve so as to fixedly connect said internal concrete form with said longitudinal cold bend thin wall steel profile keel.   
     
     
         9 . The concrete slab structural member as set forth in  claim 8 , characterized in that an external vertical concrete form keel and an external lateral concrete form keel are disposed between said external tension bolt and said external concrete form for providing support to the external concrete form, an internal vertical concrete form keel and an internal lateral concrete form keel are disposed between said internal tension bolt and said internal concrete form for providing support to the internal concrete form, said external tension bolt runs through an external gasket, the external lateral concrete form keel, the external vertical concrete form keel and the external concrete form sequentially to connect with said external tension sleeve, and said internal tension bolt runs through an internal gasket, the internal lateral concrete form keel, the internal vertical concrete form keel and the internal concrete form sequentially to connect with said internal tension sleeve. 
     
     
         10 . The concrete slab structural member as set forth in  claim 8 , characterized in that there is threaded connection between said tension connection bolt, said external tension bolt and said external tension sleeve. there is threaded connection between said tension connection bolt, said internal tension bolt and said internal tension sleeve, both of the two longitudinal cold bend thin wall steel profiles included in each longitudinal cold bend thin wall steel profile keel are C shaped steel profiles, and both said external concrete form and said internal concrete form are modular concrete forms. 
     
     
         11 . The concrete slab structural member as set forth in  claim 1 , characterized in that the concrete slab structural member is a concrete floor slab structural member or roof slab structural member. 
     
     
         12 . A construction method for pouring the concrete slab, characterized in that it comprises the following steps:
 a step of installing a frame of thin wall steel profiles, wherein a plurality of longitudinal cold bend thin wall steel profile keels are spaced apart along the lateral extension direction of the main surface of the concrete slab and placed in parallel to one another, each of the longitudinal cold bend thin wall steel profile keels comprises two longitudinal cold bend thin wall steel profiles, the main surfaces of said longitudinal cold bend thin wall steel profiles are set to be parallel to the main surface of the concrete slab such that the two longitudinal cold bend thin wall steel profiles are spaced apart and opposite each other along a direction perpendicular to the main surface of the concrete slab, and that a space for the concrete to flow through when it is poured is left between the two longitudinal cold bend thin wall steel profiles;   a step of installing forms, wherein it comprises: installing external concrete forms on one side of said frame of cold bend thin wall steel profiles such that they are fixedly connected with the frame of cold bend thin wall steel profiles;   a step of pouring concrete, wherein said concrete is made to flow through said space smoothly.   
     
     
         13 . The construction method for pouring the concrete slab as set forth in  claim 12 , characterized in that the step of installing the frame of thin wall steel profiles comprises a step of connecting said two longitudinal cold bend thin wall steel profiles, wherein connection steel plates are used to fixedly connect the two longitudinal cold bend thin wall steel profiles at positions spaced apart along the longitudinal direction of the cold bend thin wall steel profiles. 
     
     
         14 . The construction method for pouring the concrete slab as set forth in  claim 13 , characterized in that the longitudinal cold bend thin wall steel profiles, included in each longitudinal cold bend thin wall steel profile keel have a plurality of through holes on the rolling keel edge distributed along the lengthwise direction thereon for concrete to flow through when it is poured, and the connection steel plates have holes on the rolling edge for concrete to flow through when it is poured, and in the step of pouring concrete, said concrete flows through said through holes on the rolling keel edge and the holes on the rolling edge of said connection steel plates. 
     
     
         15 . The construction method for pouring the concrete slab as set forth in  claim 12 , characterized in that the concrete slab is a concrete wall slab, said longitudinal cold bend thin wall steel profiles are vertical cold bend thin wall steel profiles, and said step of installing forms further comprises: installing an internal concrete form at another side of said frame of cold bend thin wall steel profiles, and fixedly connecting it with the frame of thin wall steel profiles; in the step of pouring concrete, pouring concrete between said external concrete form and said internal concrete form. 
     
     
         16 . The construction method for pouring the concrete slab as set forth in  claim 12 , characterized in that the step of installing the frame of thin wall steel profiles comprises:
 using a lateral connection cold bend thin wall steel profile keel that comprises lateral cold bend thin wall steel profiles to connect a plurality of longitudinal cold bend thin wall steel profile keels placed in parallel, and connecting a diagonal support cold bend thin wall steel profile keel that comprises diagonal cold bend thin wall steel profiles with the longitudinal cold bend thin wall steel profile keel to form a stable overall rigid structure.   
     
     
         17 . The construction method for pouring the concrete slab as set forth in  claim 15 , characterized in that the step of installing the frame of thin wall steel profiles comprises: preparing a starting platform at the bottom, fixing a starting sleeve that comprises a starting slab and starting vertical cold bend thin wall steel profile keels on said starting platform, and fixedly connecting said longitudinal cold bend thin wall steel profiles with said starting vertical cold bend thin wall steel profile keels. 
     
     
         18 . The construction method for pouring the concrete slab as set forth in  claim 15 , characterized in that when said external concrete form is installed, a space is left between said external concrete form and the vertical cold bend thin wall steel profile located at the external side, when said internal concrete form is installed, a space is left between said internal concrete form and the vertical cold bend thin wall steel profile located at the internal side, and when concrete is poured, said concrete fills up the space between said external concrete form and said internal concrete form and covers said frame of cold bend thin wall steel profiles. 
     
     
         19 . The construction method for pouring the concrete slab as set forth in  claim 14 , characterized in that the concrete slab is a concrete wall slab, said longitudinal cold bend thin wall steel profiles are vertical cold bend thin wall steel profiles, and said step of installing forms further comprises: installing an internal concrete form at another side of said frame of cold bend thin wall steel profiles, and fixedly connecting it with the frame of thin wall steel profiles; in the step of pouring concrete, pouring concrete between said external concrete form and said internal concrete form; in the step of installing the frame of thin wall steel profiles, the holes on the rolling keel edge of the two longitudinal cold bend thin wall steel profiles are made to be opposite each other such that the running direction of said holes on the rolling keel edge is perpendicular to the main surface of said concrete wall slab, running the tension connection bolt through some of the holes on the rolling keel edge such that two ends of said tension connection bolt run through said holes on the rolling keel edge, respectively, to be connected with said external tension sleeve and said internal tension sleeve,
 When installing said external concrete form, running said external tension bolt through said external concrete form to connect with said external tension sleeve so as to fixedly connect said external concrete form with said longitudinal cold bend thin wall steel profile keel, and the step of installing said internal concrete form comprises: running said internal tension bolt through said internal concrete form to connect with said internal tension sleeve so as to fixedly connect said internal concrete form with said longitudinal cold bend thin wall steel profile keel.   
     
     
         20 . The construction method for pouring the concrete slab as set forth in  claim 19 , characterized in that it further comprises disposing an external vertical concrete form keel and an external lateral concrete form keel between said external tension bolt and said external concrete form for providing support to the external concrete form, and disposing an internal vertical concrete form keel and an internal lateral concrete form keel between said internal tension bolt and said internal concrete form for providing support to the internal concrete form;
 when running said external tension bolt through said external concrete form to connect with said external tension sleeve, running said external tension bolt through an external gasket, the external lateral concrete form keel, the external vertical concrete form keel and the external concrete form sequentially to connect with said external tension sleeve, and when running said internal tension bolt through said internal concrete form to connect with said internal tension sleeve, running said internal tension bolt through an internal gasket, the internal lateral concrete form keel, the internal vertical concrete form keel and the internal concrete form sequentially to connect with said internal tension sleeve.   
     
     
         21 . The construction method for pouring the concrete slab as set forth in  claim 19 , characterized in that there is threaded connection between said tension connection bolt, said external tension bolt and said external tension sleeve, there is threaded connection between said tension connection bolt, said internal tension bolt and said internal tension sleeve, and both of the two longitudinal cold bend thin wall steel profiles included in each longitudinal cold bend thin wall steel profile keel are C shaped steel profiles. 
     
     
         22 . The construction method for pouring the concrete slab as set forth in  claim 20 , characterized in that when installing the external concrete form and the internal concrete form for fixed connection with the frame of thin wall steel profiles, using the external tension sleeve, internal tension sleeve, tension connection bolt, external tension bolt and internal tension bolt to form a cavity with equal width along the wall extension direction between the external concrete form and the internal concrete form, and using modular concrete forms to make said external concrete form and said internal concrete form. 
     
     
         23 . (canceled)