Multi-layer concrete ceiling structure comprising a pipe system

Abstract

The invention relates to a concrete ceiling structure having a multi-layer design and comprising pre stressed elemental plates ( 10 ) for absorbing tensile stress, and at least one layer of cast-in-place concrete ( 50 ), especially reinforced concrete, arranged on the plates and used to absorb compressive stress. A pipe system ( 40 ) for the circulation of a fluid, especially air, is built into the structure, for heating or cooling. The pipes ( 40, 140, 240 ) are arranged in the cast-in-place concrete layer ( 50 ), above the elemental plates ( 10 ).

1 . Concrete floor construction having a multilayer structure, containing prestressed element slabs ( 10 ) for accommodating tensile stresses and at least one layer of cast-in-place concrete ( 50 ) located over it, for accommodating compression stresses, characterized in that a pipeline system ( 40 ) for routing-through of a fluid, is integrated for heating or cooling, the pipelines ( 40 ,  140 ,  240 ) being located in the layer of cast-in-place concrete ( 50 ) over the element slabs ( 10 ), between the prestressed element slabs ( 10 ) and the cast-in-place concrete ( 50 ) there are adhesion members selected from the group lattice beams, compound elements, and combinations thereof ( 15 ,  20 ,  30 ). 
   
   
       2 . Concrete floor construction as claimed in  claim 1 , wherein at least one layer of cast-in-place concrete is reinforced concrete and further wherein the pipelines ( 40 ,  140 ,  240 ) are located in the region of the neutral fibers of the concrete floor construction. 
   
   
       3 . Concrete floor construction as claimed  claim 2 , wherein the pipelines ( 40 ,  140 ,  240 ) have a profiled surface or reinforcements on the pipe surface for providing adhesion with the cast-in-place concrete ( 50 ). 
   
   
       4 . Concrete floor construction as claimed in  claim 2 , wherein at least one element slabs ( 10 ) has passages ( 11 ) through which the pipelines ( 40 ,  140 ,  240 ) can be routed, further wherein the region of each opening ( 11 ) has transverse reinforcements. 
   
   
       5 . Concrete floor construction as claimed in  claim 4 , wherein the transverse reinforcements, in the region of the passages ( 11 ) for routing pipelines ( 40 ,  140 ,  240 ) are located above the element slab ( 10 ). 
   
   
       6 . Concrete floor construction as claimed in  claim 2 , wherein the pipelines ( 40 ,  140 ,  240 ), especially in the region in which the element slab ( 50 ) passes through, have an oval or rectangular cross section, especially the longer axis of symmetry being aligned in the direction of primary tensile stress. 
   
   
       7 . Concrete floor construction as claimed in  claim 1 , wherein the pipelines ( 40 ,  140 ,  240 ) have pipeline ends ( 41 ) which lead through the element slabs ( 10 ) can be opened or closed by means of openable or removable means of selected from the group comprising flaps, valves, plates and seals. 
   
   
       8 . Concrete floor construction as claimed in  claim 1 , wherein the element slabs ( 10 ) are made of high-strength concrete. 
   
   
       9 . Concrete floor construction as claimed  claim 1 , wherein the element slabs ( 10 ) have a thickness of at least 8 cm, preferably 10 cm or 12 cm. 
   
   
       10 . Concrete floor construction as claimed in  claim 1 , wherein the element slabs ( 10 ) have transverse reinforcements ( 25 ) which in the transverse direction of the element slab ( 10 ) form lateral overlaps and/or overlaps ( 30 ) which are pointed obliquely upward and which form adhesion surfaces for to the cast-in-place concrete ( 50 ) in order to accommodate stresses of the secondary bearing direction.