ᐅ The support bracket for the concrete staircase was cut off. How can this be repaired?
Created on: 14 Oct 2023 18:16
D
domino55
Hello,
my construction company decided to install two prefabricated concrete staircases with a lower angle at once (apparently to only rent a larger crane once).
Staircase 1: Ground floor -> 1st floor and Staircase 2: 1st floor -> upper floor.
The ceiling of the ground floor and the masonry of the 1st floor were already completely finished. The prefabricated elements of the hollow-core slab were placed on the 1st floor.
See House_Section_GroundFloor_and_1stFloor.JPG.
Staircase 1 could not be installed because the staircase bearing point (corbel) in the floor of the 1st floor was in the way. There was not enough space to maneuver (to tilt the staircase in order to rotate the axis). The construction company cut about 12 cm (5 inches) from the support point in the concrete slab and then installed the staircase from ground floor to 1st floor. For the second staircase, this cut corbel is now missing. The lower support on the staircase measures 11 cm (4.3 inches).
What can I demand here?
I have requested that a new concrete staircase be manufactured with a correspondingly wider lower support. The construction company refuses; they want to somehow "repair" the concrete slab and install the staircase on it. Allegedly, the structural engineer of the precast concrete plant where the stairs were manufactured approved this.
So far, I have only received a preliminary hand-drawn sketch from this "structural engineer":
I notice that his sketch shows less reinforcement than was already cut out. If new steel rods are simply drilled in, there is a high risk that the electrical conduit behind the corbel will be hit and damaged.
I would like to know if I am obliged to accept his proposal or if, for example, I can insist on a new staircase.
my construction company decided to install two prefabricated concrete staircases with a lower angle at once (apparently to only rent a larger crane once).
Staircase 1: Ground floor -> 1st floor and Staircase 2: 1st floor -> upper floor.
The ceiling of the ground floor and the masonry of the 1st floor were already completely finished. The prefabricated elements of the hollow-core slab were placed on the 1st floor.
See House_Section_GroundFloor_and_1stFloor.JPG.
Staircase 1 could not be installed because the staircase bearing point (corbel) in the floor of the 1st floor was in the way. There was not enough space to maneuver (to tilt the staircase in order to rotate the axis). The construction company cut about 12 cm (5 inches) from the support point in the concrete slab and then installed the staircase from ground floor to 1st floor. For the second staircase, this cut corbel is now missing. The lower support on the staircase measures 11 cm (4.3 inches).
What can I demand here?
I have requested that a new concrete staircase be manufactured with a correspondingly wider lower support. The construction company refuses; they want to somehow "repair" the concrete slab and install the staircase on it. Allegedly, the structural engineer of the precast concrete plant where the stairs were manufactured approved this.
So far, I have only received a preliminary hand-drawn sketch from this "structural engineer":
I notice that his sketch shows less reinforcement than was already cut out. If new steel rods are simply drilled in, there is a high risk that the electrical conduit behind the corbel will be hit and damaged.
I would like to know if I am obliged to accept his proposal or if, for example, I can insist on a new staircase.
The construction company has already begun with the repairs. See pictures.
The managing director verbally informed me that:
- he is working according to the repair plans from the structural engineer at the concrete plant, who planned and produced the stair support. He said he does not need the builder’s approval for this.
- after completion, he will have the work inspected by a building expert.
- he will send me the structural engineer’s plans. I assume the expert will also sign off on the acceptance.
I have not received anything from him in writing yet.
I was not present during the repairs and was not informed about the start of the repair work. I am interested in how it is possible to prove now how deep the inserted steel bars are.
The managing director verbally informed me that:
- he is working according to the repair plans from the structural engineer at the concrete plant, who planned and produced the stair support. He said he does not need the builder’s approval for this.
- after completion, he will have the work inspected by a building expert.
- he will send me the structural engineer’s plans. I assume the expert will also sign off on the acceptance.
I have not received anything from him in writing yet.
I was not present during the repairs and was not informed about the start of the repair work. I am interested in how it is possible to prove now how deep the inserted steel bars are.