Analysis of constructive effect and soil-structure interaction in tall building projects with shallow foundations on sandy soils

Marques, Olivia Catelan; Feitosa, Leonardo Almeida; Bicalho, Katia Vanessa; Alves, Elcio Cassimiro

doi:10.1590/S1983-41952021000100003

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ORIGINAL ARTICLE • Rev. IBRACON Estrut. Mater. 14 (1) • 2021 • https://doi.org/10.1590/S1983-41952021000100003 copy

Analysis of constructive effect and soil-structure interaction in tall building projects with shallow foundations on sandy soils

Análise do efeito incremental e interação solo-estrutura em edifícios altos com fundações superficiais em solos

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract:

The influence of incremental constructive effects (IE) and soil-structure interaction (SSI) on high-rise buildings of reinforced concrete with shallow foundations on sandy soils were analyzed. IE and SSI evaluations were carried out by the parameters of global instability, maximum horizontal displacements, foundation loads, and settlements of a symmetrical and non-symmetrical plant of a 23-storey building For the analysis of the IE, the variation of the modulus of elasticity was considered over time along with the phases of application of loads in the building. For ISS analysis, the continuous medium was considered, and the calculation model considers a multi-spring-mass system under the foundation of the building. The results show a significant redistribution in the foundation efforts and suggest that a failure in considering these effects along with the structure can lead to projects that do not meet the standard specifications regarding stability parameters and overall structure displacements.

Keywords:
global stability; constructive effects; soil-structure interaction; shallow foundations; reinforced concrete

Shipments Cases	Portion (%)	Phase
All permanent and accidental pavements	0	0
All permanent and accidental pavements	100	Final
Own weight	100	0
Own weight	0	Final
Dead loads	0	0
	30	1
	60	2
	10	Final
Live loads	0	0
	50	1
	15	2
	35	Final
Wind 90°	0	0
Wind 90°	100	Final
Wind 270°	0	0
Wind 270°	100	Final
Wind 0°	0	0
Wind 0°	100	Final
Wind 180°	0	0
Wind 180°	100	Final
Wind 45°	0	0
Wind 45°	100	Final
Wind 135°	0	0
Wind 135°	100	Final
Wind 225°	0	0
Wind 225°	100	Final
Wind 315°	0	0
Wind 315°	100	Final

FLOOR	PERMANENT	ACCIDENTAL
-	kN/m²	kN/m²
Type	1.0	1.5
Garage	1.0	3.0
Common area	1.0	3.0

MODEL		$γ_{z}$		HORIZONTAL DISPLACEMENTS
		Wind
		90°-270°	0° -180°	90°-270°	0° -180°
SYMMETRICAL	1.1	1.150	1.090	1.65	1.00
	1.2	1.151	1.090	1.66	1.00
	1.3	1.305	1.306	2.72	2.74
	1.4	1.311	1.306	2.61	2.85
NON-SYMMETRICAL	2.1	1.162	1.098	1.62	1.36
	2.2	1.162	1.098	1.63	1.38
	2.3	1.323	1.314	2.64	3.11
	2.4	1.327	1.315	2.53	3.23

SHALLOW FOUNDATION POSITION	SHALLOW FOUNDATION	SYMMETRICAL				NON-SYMMETRICAL
SHALLOW FOUNDATION POSITION	SHALLOW FOUNDATION	1.1	1.2	1.3	1.4	2.1	2.2	2.3	2.4
GARAGE	1	113	113	118	116	113	113	117	115
	2	235	235	237	237	235	235	236	235
	3	284	285	308	310	284	284	305	307
	4	186	190	300	306	185	189	291	297
	5	186	191	299	305	186	190	290	296
	6	280	280	301	303	280	280	298	301
	7	248	248	251	251	247	248	250	249
	8	121	121	120	120	121	121	119	118
	9	225	224	206	306	225	225	208	207
	10	550	552	589	590	550	551	586	587
	14	405	406	429	428	405	406	426	426
	15	162	161	149	148	162	161	150	148
	16	431	435	505	502	431	435	508	506
	17	185	185	173	175	185	185	174	175
	18	262	260	239	238	262	260	239	238
	19	602	606	688	686	602	607	691	690
	21	266	265	242	242	266	265	238	238
	22	611	616	698	693	611	617	711	706
	25	562	567	628	625	562	568	639	637
	26	231	230	216	216	231	230	212	212
	27	225	224	206	206	225	224	201	202
	28	545	547	590	587	544	548	600	595
	30	548	550	578	575	548	551	587	583
	31	228	227	207	207	228	226	202	202
	32	116	116	121	119	116	116	122	121
	33	241	241	242	242	241	241	243	243
	34	288	289	316	314	288	289	328	327
	35	192	198	321	316	194	200	366	364
	36	183	198	319	315	194	201	365	365
	37	283	284	306	306	284	284	318	318
	38	240	241	246	246	241	241	247	246
	39	116	116	121	120	116	117	122	121
PERIPHERAL	11	6707	6607	6988	7079	6678	6580	6845	6995
	12	14148	13933	13727	14567	13989	13805	13316	14291
	13	6823	6765	7123	7206	6796	6732	6972	7109
	23	6937	6840	7217	7013	8180	7982	8488	8167
	24	6957	6904	7324	7075	8244	8100	8659	8333
	29	15151	14897	14641	14454	20651	20438	19370	19439
CENTRAL	20	32375	33109	31162	32059	30839	31693	30698	31277

SHALLOW FOUNDATION POSITIONS	SHALLOW FOUNDATION	SYMMETRICAL		NON-SYMMETRICAL
SHALLOW FOUNDATION POSITIONS	SHALLOW FOUNDATION	1.3	1.4	2,.3	2.4
GARAGE	1	0.17	0.17	0.17	0.17
	2	0.32	0.32	0.32	0.32
	3	0.36	0.36	0.35	0.36
	4	0.43	0.45	0.42	0.43
	5	0.43	0.44	0.41	0.43
	6	0.35	0.35	0.34	0.35
	7	0.29	0.31	0.31	0.31
	8	0.2	0.2	0.2	0.2
	9	0.27	0.27	0.27	0.27
	10	0.62	0.62	0.61	0.61
	14	0.51	0.51	0.5	0.51
	15	0.2	0.2	0.21	0.2
	16	0.51	0.51	0.51	0.51
	17	0.22	0.22	0.22	0.22
	18	0.29	0.29	0.29	0.29
	19	0.68	0.68	0.68	0.68
	21	0.29	0.29	0.29	0.29
	22	0.68	0.69	0.7	0.7
	25	0.62	0.62	0.63	0.63
	26	0.27	0.27	0.26	0.26
	27	0.27	0.27	0.27	0.27
	28	0.62	0.62	0.63	0.62
	30	0.6	0.6	0.61	0.61
	31	0.27	0.27	0.27	0.27
	32	0.17	0.17	0.17	0.17
	33	0.32	0.32	0.33	0.33
	34	0.37	0.37	0.38	0.38
	35	0.46	0.46	0.53	0.53
	36	0.46	0.46	0.52	0.53
	37	0.36	0.36	0.37	0.37
	38	0.31	0.31	0.31	0.31
	39	0.17	0.17	0.17	0.17
PERIPHERAL	11	2.24	2.28	2.2	2.24
	12	2.46	2.58	2.38	2.5
	13	2.08	2.11	2.03	2.07
	23	2.31	2.26	2.59	2.51
	24	2.13	2.09	2.42	2.34
	29	2.61	2.56	3.26	3.23
CENTRAL	20	2.7	2.77	2.54	2.63

IBRACON - Instituto Brasileiro do Concreto Instituto Brasileiro do Concreto (IBRACON), Av. Queiroz Filho, nº 1700 sala 407/408 Torre D, Villa Lobos Office Park, CEP 05319-000, São Paulo, SP - Brasil, Tel. (55 11) 3735-0202, Fax: (55 11) 3733-2190 - São Paulo - SP - Brazil
E-mail: arlene@ibracon.org.br

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[1] Corresponding author: Olivia Catelan Marques. E-mail: oliviacmarques@gmail.com

Beams:	30	MPa
Slabs:	30	MPa
Columns:	40	MPa
Foundation	40	MPa
Wind	30	m/s
Terrain topographic factor	1
Roughness Category	IV
Height Relation	h/4