Global stability of buildings’ structural systems considering beam-wall connections

Several factors influence the stability of concrete structures, such as building height, structural components’ rigidity, bracing system, beam-wall connection rigidity, among others. Global structural stability is evaluated according to NBR 6118/2014 by the α e γ_z parameters. This article aims to evaluate the global structural stability concrete structures considering the eccentricity of the beam-wall connections. With the aid of software Abaqus© and TQS©, reticulated models were analyzed to evaluate the contribution of the eccentricity of the beam-wall connections on the global stability and the rigidity of the connections. The geometric nonlinear effects were disregarded in these analyses. The stability parameters from NBR6118/2014 were evaluated in the frame models, as well as the flexibilization criteria from the TQS© software, LEPMOL e REDMOL. The results of the displacement analysis show an increase of 26.45%, comparing the centered connection to the more eccentric connection.

Keywords:
global stability; beam-wall connection; TQS©; flexibility criteria

Authorship

C. W. S. DINIZ

Federal University of Alagoas, Superintendence of Infrastructure, Maceió. AL, Brazil; carlos.diniz@sinfra.ufal.brFederal University of AlagoasBrazilMaceió, AL, BrazilFederal University of Alagoas, Superintendence of Infrastructure, Maceió. AL, Brazil; carlos.diniz@sinfra.ufal.br

https://orcid.org/0000-0002-0776-4789

E. N. LAGES

Federal University of Alagoas, Laboratory of Scientific Computing and Visualization, Center of Technology, Graduate Program in Engineering, Maceió, AL, Brazil. enl@lccv.ufal.br aline@lccv.ufal.brFederal University of AlagoasBrazilMaceió, AL, BrazilFederal University of Alagoas, Laboratory of Scientific Computing and Visualization, Center of Technology, Graduate Program in Engineering, Maceió, AL, Brazil. enl@lccv.ufal.br aline@lccv.ufal.br

https://orcid.org/0000-0001-6704-4057

A. S. R. BARBOZA

https://orcid.org/0000-0001-6296-927X

SCIMAGO INSTITUTIONS RANKINGS

Figures | Tables

Figures (14)
Tables (15)

Models	Description
MFS3DWSL1	Model of tri-dimensional framed structure without slab with 1 floor
MFS3DWSL2	Model of tri-dimensional framed structure without slab with 2 floors
MFS3DWSL3	Model of tri-dimensional framed structure without slab with 3 floors
MFS3DWSL4	Model of tri-dimensional framed structure without slab with 4 floors
MFS3DWSL5	Model of tri-dimensional framed structure without slab with 5 floors
MFS3DWSL6	Model of tri-dimensional framed structure without slab with 6 floors
MFS3DSL1	Model of tri-dimensional framed structure with slab with 1 floor
MFS3DSL2	Model of tri-dimensional framed structure with slab with 2 floors
MFS3DSL3	Model of tri-dimensional framed structure with slab with 3 floors
MFS3DSL4	Model of tri-dimensional framed structure with slab with 4 floors
MFS3DSL5	Model of tri-dimensional framed structure with slab with 5 floors
MFS3DSL6	Model of tri-dimensional framed structure with slab with 6 floors

Surfaces of the elements	Model with slabs			Models without slabs
Surfaces of the elements	PP (kN/m²)	PERM (kN/m²)	ACID (kN/m²)	PP (kN/m²)	PERM (kN/m²)	ACID (kN/m²)
Slabs	3.750	1.500	2.000	-	-	-
Beams	15.000	23.400	-	47.813	36.525	17.500

Floors	MFS3DSL1 and MFS3DWSL1 WIND (kN/m²)	MFS3DSL2 and MFS3DWSL2 WIND (kN/m²)	MFS3DSL3 and MFS3DWSL3 WIND (kN/m²)	MFS3DSL4 and MFS3DWSL4 WIND (kN/m²)	MFS3DSL5 and MFS3DWSL5 WIND (kN/m²)	MFS3DSL6 and MFS3DWSL6 WIND (kN/m²)
1º FL	3.083	6.958	7.333	7.667	7.917	8.042
2º FL	-	2.542	5.500	5.750	5.917	6.000
3ºFL	-	-	2.833	6.042	6.208	6.125
4º FL	-	-	-	3.083	6.458	6.542
5º FL	-	-	-	-	3.292	6.750
6º FL	-	-	-	-	-	3.417

Simulation	e (m)
1	0.0
2	0.05
3	0.10
4	0.15
5	0.20
6	0.25
7	0.30
8	0.35
9	0.40
10	0.45
11	0.50

Simulation	e (cm)	MFS3DWSL1			MFS3DSL1
Simulation	e (cm)	U₁ (m)	DPRDA	DPA	U₁ (m)	DPRDA	DPA
1	0.0	0.00076	0.00%	0.00%	0.00051	0.00%	0.00%
2	0.05	0.00076	-0.12%	-0.12%	0.00052	0.23%	0.23%
3	0.10	0.00076	0.08%	-0.05%	0.00052	0.08%	0.31%
4	0.15	0.00077	0.31%	0.26%	0.00052	-0.11%	0.20%
5	0.20	0.00077	0.63%	0.90%	0.00051	-0.25%	-0.06%
6	0.25	0.00078	1.08%	1.98%	0.00051	-0.23%	-0.29%
7	0.30	0.00079	1.58%	3.60%	0.00051	-0.08%	-0.37%
8	0.35	0.00081	2.08%	5.75%	0.00051	0.11%	-0.26%
9	0.40	0.00083	2.56%	8.45%	0.00051	0.34%	0.08%
10	0.45	0.00085	3.01%	11.71%	0.00052	0.60%	0.68%
11	0.50	0.00088	3.20%	15.29%	0.00052	1.20%	1.89%

e (m)	PR (%)
e (m)	1FL	2FL	3FL	4FL	5FL	6FL
0.0	32.6	24.3	23.1	23.1	23.0	23.4
0.05	32.4	24.1	22.9	22.9	22.8	23.2
0.10	32.4	24.0	22.8	22.7	22.6	23.0
0.15	32.7	23.9	22.6	22.5	22.4	22.7
0.20	33.3	23.9	22.5	22.3	22.1	22.5
0.25	34.1	24.0	22.5	22.2	21.9	22.2
0.30	35.2	24.2	22.4	22.0	21.7	22.0
0.35	36.4	24.4	22.4	21.9	21.6	21.8
0.40	37.8	24.8	22.5	21.8	21.4	21.7
0.45	39.3	25.2	22.6	21.8	21.3	21.6
0.50	40.4	25.7	22.9	22.0	21.5	21.7

e (m)	$\frac{U_{1,2}}{U_{1,1}}$	$\frac{U_{1,3}}{U_{1,2}}$	$\frac{U_{1,4}}{U_{1,3}}$	$\frac{U_{1,5}}{U_{1,4}}$	$\frac{U_{1,6}}{U_{1,5}}$
0.0	2.67	2.30	1.94	1.69	1.52
0.05	2.68	2.31	1.94	1.70	1.52
0.10	2.69	2.31	1.95	1.70	1.53
0.15	2.69	2.32	1.95	1.70	1.53
0.20	2.69	2.33	1.95	1.70	1.53
0.25	2.69	2.34	1.96	1.70	1.53
0.30	2.69	2.34	1.96	1.71	1.53
0.35	2.68	2.35	1.97	1.71	1.53
0.40	2.67	2.36	1.97	1.71	1.53
0.45	2.66	2.36	1.97	1.71	1.53
0.50	2.67	2.37	1.98	1.72	1.54

e (m)	Non-linear geometric analysis
e (m)	U₁A (m)	LEPMOL	U₁T (m)	α	γ_z
0.0	0.0235	6.00	0.0245	0.651	1.102
0.05	0.0237	6.00	0.0245	0.649	1.102
0.10	0.0239	6.00	0.0245	0.651	1.102
0.15	0.0242	6.00	0.0245	0.651	1.102
0.20	0.0245	6.00	0.0245	0.651	1.102
0.25	0.0250	5.85	0.0250	0.654	1.103
0.30	0.0255	5.60	0.0255	0.659	1.105
0.35	0.0261	5.35	0.0261	0.664	1.106
0.40	0.0269	5.01	0.0269	0.672	1.109
0.45	0.0278	4.70	0.0278	0.680	1.112
0.50	0.0291	4.30	0.0291	0.691	1.116

Loads	PP	PERM	ACID	VENT
Factor of multiplication	1.00	1.00	0.30	0.30

Simulation	e (cm)	MFS3DWSL2			MFS3DSL2
Simulation	e (cm)	U₁ (m)	DPRDA	DPA	U₁ (m)	DPRDA	DPA
1	0.0	0.00204	0.00%	0.00%	0.00154	0.00%	0.00%
2	0.05	0.00204	0.21%	0.21%	0.00155	0.43%	0.43%
3	0.10	0.00205	0.36%	0.57%	0.00156	0.53%	0.97%
4	0.15	0.00206	0.53%	1.10%	0.00157	0.63%	1.60%
5	0.20	0.00207	0.76%	1.87%	0.00158	0.75%	2.36%
6	0.25	0.00210	1.05%	2.94%	0.00159	0.94%	3.32%
7	0.30	0.00213	1.40%	4.38%	0.00161	1.18%	4.54%
8	0.35	0.00216	1.78%	6.24%	0.00163	1.46%	6.06%
9	0.40	0.00221	2.21%	8.59%	0.00166	1.77%	7.94%
10	0.45	0.00227	2.69%	11.51%	0.00170	2.13%	10.23%
11	0.50	0.00235	3.47%	15.38%	0.00174	2.78%	13.30%

Simulation	e (cm)	MFS3DWSL3			MFS3DSL3
Simulation	e (cm)	U₁ (m)	DPRDA	DPA	U₁ (m)	DPRDA	DPA
1	0.0	0.00468	0.00%	0.00%	0.00360	0.00%	0.00%
2	0.05	0.00471	0.45%	0.45%	0.00363	0.66%	0.66%
3	0.10	0.00474	0.65%	1.09%	0.00366	0.85%	1.51%
4	0.15	0.00478	0.86%	1.96%	0.00370	1.04%	2.57%
5	0.20	0.00483	1.10%	3.09%	0.00374	1.25%	3.85%
6	0.25	0.00490	1.39%	4.52%	0.00380	1.48%	5.39%
7	0.30	0.00498	1.71%	6.31%	0.00386	1.77%	7.25%
8	0.35	0.00508	2.07%	8.51%	0.00394	2.06%	9.46%
9	0.40	0.00521	2.47%	11.19%	0.00404	2.41%	12.09%
10	0.45	0.00536	2.94%	14.46%	0.00415	2.79%	15.22%
11	0.50	0.00557	3.95%	18.99%	0.00430	3.54%	19.30%

Simulation	e (cm)	MFS3DWSL4			MFS3DSL4
Simulation	e (cm)	U₁ (m)	DPRDA	DPA	U₁ (m)	DPRDA	DPA
1	0.0	0.00910	0.00%	0.00%	0.00700	0.00%	0.00%
2	0.05	0.00915	0.58%	0.58%	0.00706	0.81%	0.81%
3	0.10	0.00922	0.80%	1.38%	0.00713	1.05%	1.88%
4	0.15	0.00932	1.04%	2.43%	0.00722	1.28%	3.18%
5	0.20	0.00944	1.29%	3.76%	0.00733	1.53%	4.76%
6	0.25	0.00959	1.58%	5.40%	0.00746	1.79%	6.64%
7	0.30	0.00977	1.91%	7.41%	0.00762	2.09%	8.87%
8	0.35	0.00999	2.26%	9.84%	0.00780	2.40%	11.48%
9	0.40	0.01026	2.67%	12.78%	0.00802	2.77%	14.57%
10	0.45	0.01058	3.15%	16.33%	0.00827	3.16%	18.19%
11	0.50	0.01104	4.27%	21.30%	0.00860	3.98%	22.90%